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| author | Matthias P. Braendli <matthias.braendli@mpb.li> | 2016-09-10 20:15:44 +0200 |
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| committer | Matthias P. Braendli <matthias.braendli@mpb.li> | 2016-09-10 20:15:44 +0200 |
| commit | 14c7b800eaa23e9da7c92c7c4df397d0c191f097 (patch) | |
| tree | d840b6ec41ff74d1184ca1dcd7731d08f1e9ebbb /libAACdec | |
| parent | 78a801e4d716c6f2403cc56cf6c5b6f138f24b2f (diff) | |
| download | ODR-AudioEnc-14c7b800eaa23e9da7c92c7c4df397d0c191f097.tar.gz ODR-AudioEnc-14c7b800eaa23e9da7c92c7c4df397d0c191f097.tar.bz2 ODR-AudioEnc-14c7b800eaa23e9da7c92c7c4df397d0c191f097.zip | |
Remove FDK-AAC
Diffstat (limited to 'libAACdec')
47 files changed, 0 insertions, 21070 deletions
diff --git a/libAACdec/include/aacdecoder_lib.h b/libAACdec/include/aacdecoder_lib.h deleted file mode 100644 index 60efe8d..0000000 --- a/libAACdec/include/aacdecoder_lib.h +++ /dev/null @@ -1,689 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Manuel Jander - -******************************************************************************/ - -/** - * \file aacdecoder_lib.h - * \brief FDK AAC decoder library interface header file. - * - -\page INTRO Introduction - -\section SCOPE Scope - -This document describes the high-level interface and usage of the ISO/MPEG-2/4 AAC Decoder -library developed by the Fraunhofer Institute for Integrated Circuits (IIS). -Depending on the library configuration, it implements decoding of AAC-LC (Low-Complexity), -HE-AAC (High-Efficiency AAC, v1 and v2), AAC-LD (Low-Delay) and AAC-ELD (Enhanced Low-Delay). - -All references to SBR (Spectral Band Replication) are only applicable to HE-AAC and AAC-ELD -versions of the library. All references to PS (Parametric Stereo) are only applicable to -HE-AAC v2 versions of the library. - -\section DecoderBasics Decoder Basics - -This document can only give a rough overview about the ISO/MPEG-2 and ISO/MPEG-4 AAC audio -coding standard. To understand all the terms in this document, you are encouraged to read -the following documents. - -- ISO/IEC 13818-7 (MPEG-2 AAC), which defines the syntax of MPEG-2 AAC audio bitstreams. -- ISO/IEC 14496-3 (MPEG-4 AAC, subpart 1 and 4), which defines the syntax of MPEG-4 AAC audio bitstreams. -- Lutzky, Schuller, Gayer, Krämer, Wabnik, "A guideline to audio codec delay", 116th AES Convention, May 8, 2004 - -MPEG Advanced Audio Coding is based on a time-to-frequency mapping of the signal. The signal -is partitioned into overlapping portions and transformed into frequency domain. The spectral -components are then quantized and coded.\n -An MPEG2 or MPEG4 AAC audio bitstream is composed of frames. Contrary to MPEG-1/2 Layer-3 (mp3), -the length of individual frames is not restricted to a fixed number of bytes, but can take on -any length between 1 and 768 bytes. - - -\page LIBUSE Library Usage - -\section InterfaceDescritpion API Description - -All API header files are located in the folder /include of the release package. They are described in -detail in this document. All header files are provided for usage in C/C++ programs. The AAC decoder library -API functions are located at aacdecoder_lib.h. - -In binary releases the decoder core resides in statically linkable libraries called for example libAACdec.a, -(Linux) or FDK_aacDec_lib (Microsoft Visual C++). - -\section Calling_Sequence Calling Sequence - -For decoding of ISO/MPEG-2/4 AAC or HE-AAC v2 bitstreams the following sequence is mandatory. Input read -and output write functions as well as the corresponding open and close functions are left out, since they -may be implemented differently according to the user's specific requirements. The example implementation in -main.cpp uses file-based input/output, and in such case call mpegFileRead_Open() to open an input file and -to allocate memory for the required structures, and the corresponding mpegFileRead_Close() to close opened -files and to de-allocate associated structures. mpegFileRead_Open() tries to detect the bitstream format and -in case of MPEG-4 file format or Raw Packets file format (a Fraunhofer IIS proprietary format) reads the Audio -Specific Config data (ASC). An unsuccessful attempt to recognize the bitstream format requires the user to -provide this information manually (see \ref CommandLineUsage). For any other bitstream formats that are -usually applicable in streaming applications, the decoder itself will try to synchronize and parse the given -bitstream fragment using the FDK transport library. Hence, for streaming applications (without file access) -this step is not necessary. - --# Call aacDecoder_Open() to open and retrieve a handle to a new AAC decoder instance. -\dontinclude main.cpp -\skipline aacDecoder_Open --# If out-of-band config data (Audio Specific Config (ASC) or Stream Mux Config (SMC)) is available, call -aacDecoder_ConfigRaw() to pass it to the decoder and before the decoding process starts. If this data is -not available in advance, the decoder will get it from the bitstream and configure itself while decoding -with aacDecoder_DecodeFrame(). --# Begin decoding loop. -\skipline do { --# Read data from bitstream file or stream into a client-supplied input buffer ("inBuffer" in main.cpp). -If it is very small like just 4, aacDecoder_DecodeFrame() will -repeatedly return ::AAC_DEC_NOT_ENOUGH_BITS until enough bits were fed by aacDecoder_Fill(). Only read data -when this buffer has completely been processed and is then empty. For file-based input execute -mpegFileRead_Read() or any other implementation with similar functionality. --# Call aacDecoder_Fill() to fill the decoder's internal bitstream input buffer with the client-supplied -external bitstream input buffer. -\skipline aacDecoder_Fill --# Call aacDecoder_DecodeFrame() which writes decoded PCM audio data to a client-supplied buffer. It is the -client's responsibility to allocate a buffer which is large enough to hold this output data. -\skipline aacDecoder_DecodeFrame -If the bitstream's configuration (number of channels, sample rate, frame size) is not known in advance, you may -call aacDecoder_GetStreamInfo() to retrieve a structure containing this information and then initialize an audio -output device. In the example main.cpp, if the number of channels or the sample rate has changed since program -start or since the previously decoded frame, the audio output device will be re-initialized. If WAVE file output -is chosen, a new WAVE file for each new configuration will be created. -\skipline aacDecoder_GetStreamInfo --# Repeat steps 5 to 7 until no data to decode is available anymore, or if an error occured. -\skipline } while --# Call aacDecoder_Close() to de-allocate all AAC decoder and transport layer structures. -\skipline aacDecoder_Close - -\section BufferSystem Buffer System - -There are three main buffers in an AAC decoder application. One external input buffer to hold bitstream -data from file I/O or elsewhere, one decoder-internal input buffer, and one to hold the decoded output -PCM sample data, whereas this output buffer may overlap with the external input buffer. - -The external input buffer is set in the example framework main.cpp and its size is defined by ::IN_BUF_SIZE. -You may freely choose different sizes here. To feed the data to the decoder-internal input buffer, use the -function aacDecoder_Fill(). This function returns important information about how many bytes in the -external input buffer have not yet been copied into the internal input buffer (variable bytesValid). -Once the external buffer has been fully copied, it can be re-filled again. -In case you want to re-fill it when there are still unprocessed bytes (bytesValid is unequal 0), you -would have to additionally perform a memcpy(), so that just means unnecessary computational overhead -and therefore we recommend to re-fill the buffer only when bytesValid is 0. - -\image latex dec_buffer.png "Lifecycle of the external input buffer" width=9cm - -The size of the decoder-internal input buffer is set in tpdec_lib.h (see define ::TRANSPORTDEC_INBUF_SIZE). -You may choose a smaller size under the following considerations: - -- each input channel requires 768 bytes -- the whole buffer must be of size 2^n - -So for example a stereo decoder: - -\f[ -TRANSPORTDEC\_INBUF\_SIZE = 2 * 768 = 1536 => 2048 -\f] - -tpdec_lib.h and TRANSPORTDEC_INBUF_SIZE are not part of the decoder's library interface. Therefore -only source-code clients may change this setting. If you received a library release, please ask us and -we can change this in order to meet your memory requirements. - -\page OutputFormat Decoder audio output - -\section OutputFormatObtaining Obtaining channel mapping information - -The decoded audio output format is indicated by a set of variables of the CStreamInfo structure. -While the members sampleRate, frameSize and numChannels might be quite self explaining, -pChannelType and pChannelIndices might require some more detailed explanation. - -These two arrays indicate what is each output channel supposed to be. Both array have -CStreamInfo::numChannels cells. Each cell of pChannelType indicates the channel type, described in -the enum ::AUDIO_CHANNEL_TYPE defined in FDK_audio.h. The cells of pChannelIndices indicate the sub index -among the channels starting with 0 among all channels of the same audio channel type. - -The indexing scheme is the same as for MPEG-2/4. Thus indices are counted upwards starting from the front -direction (thus a center channel if any, will always be index 0). Then the indices count up, starting always -with the left side, pairwise from front toward back. For detailed explanation, please refer to -ISO/IEC 13818-7:2005(E), chapter 8.5.3.2. - -In case a Program Config is included in the audio configuration, the channel mapping described within -it will be adopted. - -In case of MPEG-D Surround the channel mapping will follow the same criteria described in ISO/IEC 13818-7:2005(E), -but adding corresponding top channels to the channel types front, side and back, in order to avoid any -loss of information. - -\section OutputFormatChange Changing the audio output format - -The channel interleaving scheme and the actual channel order can be changed at runtime through the -parameters ::AAC_PCM_OUTPUT_INTERLEAVED and ::AAC_PCM_OUTPUT_CHANNEL_MAPPING. See the description of those -parameters and the decoder library function aacDecoder_SetParam() for more detail. - -\section OutputFormatExample Channel mapping examples - -The following examples illustrate the location of individual audio samples in the audio buffer that -is passed to aacDecoder_DecodeFrame() and the expected data in the CStreamInfo structure which can be obtained -by calling aacDecoder_GetStreamInfo(). - -\subsection ExamplesStereo Stereo - -In case of ::AAC_PCM_OUTPUT_INTERLEAVED set to 0 and ::AAC_PCM_OUTPUT_CHANNEL_MAPPING set to 1, -a AAC-LC bit stream which has channelConfiguration = 2 in its audio specific config would lead -to the following values in CStreamInfo: - -CStreamInfo::numChannels = 2 - -CStreamInfo::pChannelType = { ::ACT_FRONT, ::ACT_FRONT } - -CStreamInfo::pChannelIndices = { 0, 1 } - -Since ::AAC_PCM_OUTPUT_INTERLEAVED is set to 0, the audio channels will be located as contiguous blocks -in the output buffer as follows: - -\verbatim - <left sample 0> <left sample 1> <left sample 2> ... <left sample N> - <right sample 0> <right sample 1> <right sample 2> ... <right sample N> -\endverbatim - -Where N equals to CStreamInfo::frameSize . - -\subsection ExamplesSurround Surround 5.1 - -In case of ::AAC_PCM_OUTPUT_INTERLEAVED set to 1 and ::AAC_PCM_OUTPUT_CHANNEL_MAPPING set to 1, -a AAC-LC bit stream which has channelConfiguration = 6 in its audio specific config, would lead -to the following values in CStreamInfo: - -CStreamInfo::numChannels = 6 - -CStreamInfo::pChannelType = { ::ACT_FRONT, ::ACT_FRONT, ::ACT_FRONT, ::ACT_LFE, ::ACT_BACK, ::ACT_BACK } - -CStreamInfo::pChannelIndices = { 1, 2, 0, 0, 0, 1 } - -Since ::AAC_PCM_OUTPUT_CHANNEL_MAPPING is 1, WAV file channel ordering will be used. For a 5.1 channel -scheme, thus the channels would be: front left, front right, center, LFE, surround left, surround right. -Thus the third channel is the center channel, receiving the index 0. The other front channels are -front left, front right being placed as first and second channels with indices 1 and 2 correspondingly. -There is only one LFE, placed as the fourth channel and index 0. Finally both surround -channels get the type definition ACT_BACK, and the indices 0 and 1. - -Since ::AAC_PCM_OUTPUT_INTERLEAVED is set to 1, the audio channels will be placed in the output buffer -as follows: - -\verbatim -<front left sample 0> <front right sample 0> -<center sample 0> <LFE sample 0> -<surround left sample 0> <surround right sample 0> - -<front left sample 1> <front right sample 1> -<center sample 1> <LFE sample 1> -<surround left sample 1> <surround right sample 1> - -... - -<front left sample N> <front right sample N> -<center sample N> <LFE sample N> -<surround left sample N> <surround right sample N> -\endverbatim - -Where N equals to CStreamInfo::frameSize . - -\subsection ExamplesArib ARIB coding mode 2/1 - -In case of ::AAC_PCM_OUTPUT_INTERLEAVED set to 1 and ::AAC_PCM_OUTPUT_CHANNEL_MAPPING set to 1, -in case of a ARIB bit stream using coding mode 2/1 as described in ARIB STD-B32 Part 2 Version 2.1-E1, page 61, -would lead to the following values in CStreamInfo: - -CStreamInfo::numChannels = 3 - -CStreamInfo::pChannelType = { ::ACT_FRONT, ::ACT_FRONT,:: ACT_BACK } - -CStreamInfo::pChannelIndices = { 0, 1, 0 } - -The audio channels will be placed as follows in the audio output buffer: - -\verbatim -<front left sample 0> <front right sample 0> <mid surround sample 0> - -<front left sample 1> <front right sample 1> <mid surround sample 1> - -... - -<front left sample N> <front right sample N> <mid surround sample N> - -Where N equals to CStreamInfo::frameSize . - -\endverbatim - -*/ - -#ifndef AACDECODER_LIB_H -#define AACDECODER_LIB_H - -#include "machine_type.h" -#include "FDK_audio.h" - -#include "genericStds.h" - -/** - * \brief AAC decoder error codes. - */ -typedef enum { - AAC_DEC_OK = 0x0000, /*!< No error occured. Output buffer is valid and error free. */ - AAC_DEC_OUT_OF_MEMORY = 0x0002, /*!< Heap returned NULL pointer. Output buffer is invalid. */ - AAC_DEC_UNKNOWN = 0x0005, /*!< Error condition is of unknown reason, or from a another module. Output buffer is invalid. */ - - /* Synchronization errors. Output buffer is invalid. */ - aac_dec_sync_error_start = 0x1000, - AAC_DEC_TRANSPORT_SYNC_ERROR = 0x1001, /*!< The transport decoder had syncronisation problems. Do not exit decoding. Just feed new - bitstream data. */ - AAC_DEC_NOT_ENOUGH_BITS = 0x1002, /*!< The input buffer ran out of bits. */ - aac_dec_sync_error_end = 0x1FFF, - - /* Initialization errors. Output buffer is invalid. */ - aac_dec_init_error_start = 0x2000, - AAC_DEC_INVALID_HANDLE = 0x2001, /*!< The handle passed to the function call was invalid (NULL). */ - AAC_DEC_UNSUPPORTED_AOT = 0x2002, /*!< The AOT found in the configuration is not supported. */ - AAC_DEC_UNSUPPORTED_FORMAT = 0x2003, /*!< The bitstream format is not supported. */ - AAC_DEC_UNSUPPORTED_ER_FORMAT = 0x2004, /*!< The error resilience tool format is not supported. */ - AAC_DEC_UNSUPPORTED_EPCONFIG = 0x2005, /*!< The error protection format is not supported. */ - AAC_DEC_UNSUPPORTED_MULTILAYER = 0x2006, /*!< More than one layer for AAC scalable is not supported. */ - AAC_DEC_UNSUPPORTED_CHANNELCONFIG = 0x2007, /*!< The channel configuration (either number or arrangement) is not supported. */ - AAC_DEC_UNSUPPORTED_SAMPLINGRATE = 0x2008, /*!< The sample rate specified in the configuration is not supported. */ - AAC_DEC_INVALID_SBR_CONFIG = 0x2009, /*!< The SBR configuration is not supported. */ - AAC_DEC_SET_PARAM_FAIL = 0x200A, /*!< The parameter could not be set. Either the value was out of range or the parameter does - not exist. */ - AAC_DEC_NEED_TO_RESTART = 0x200B, /*!< The decoder needs to be restarted, since the requiered configuration change cannot be - performed. */ - aac_dec_init_error_end = 0x2FFF, - - /* Decode errors. Output buffer is valid but concealed. */ - aac_dec_decode_error_start = 0x4000, - AAC_DEC_TRANSPORT_ERROR = 0x4001, /*!< The transport decoder encountered an unexpected error. */ - AAC_DEC_PARSE_ERROR = 0x4002, /*!< Error while parsing the bitstream. Most probably it is corrupted, or the system crashed. */ - AAC_DEC_UNSUPPORTED_EXTENSION_PAYLOAD = 0x4003, /*!< Error while parsing the extension payload of the bitstream. The extension payload type - found is not supported. */ - AAC_DEC_DECODE_FRAME_ERROR = 0x4004, /*!< The parsed bitstream value is out of range. Most probably the bitstream is corrupt, or - the system crashed. */ - AAC_DEC_CRC_ERROR = 0x4005, /*!< The embedded CRC did not match. */ - AAC_DEC_INVALID_CODE_BOOK = 0x4006, /*!< An invalid codebook was signalled. Most probably the bitstream is corrupt, or the system - crashed. */ - AAC_DEC_UNSUPPORTED_PREDICTION = 0x4007, /*!< Predictor found, but not supported in the AAC Low Complexity profile. Most probably the - bitstream is corrupt, or has a wrong format. */ - AAC_DEC_UNSUPPORTED_CCE = 0x4008, /*!< A CCE element was found which is not supported. Most probably the bitstream is corrupt, or - has a wrong format. */ - AAC_DEC_UNSUPPORTED_LFE = 0x4009, /*!< A LFE element was found which is not supported. Most probably the bitstream is corrupt, or - has a wrong format. */ - AAC_DEC_UNSUPPORTED_GAIN_CONTROL_DATA = 0x400A, /*!< Gain control data found but not supported. Most probably the bitstream is corrupt, or has - a wrong format. */ - AAC_DEC_UNSUPPORTED_SBA = 0x400B, /*!< SBA found, but currently not supported in the BSAC profile. */ - AAC_DEC_TNS_READ_ERROR = 0x400C, /*!< Error while reading TNS data. Most probably the bitstream is corrupt or the system - crashed. */ - AAC_DEC_RVLC_ERROR = 0x400D, /*!< Error while decoding error resillient data. */ - aac_dec_decode_error_end = 0x4FFF, - - /* Ancillary data errors. Output buffer is valid. */ - aac_dec_anc_data_error_start = 0x8000, - AAC_DEC_ANC_DATA_ERROR = 0x8001, /*!< Non severe error concerning the ancillary data handling. */ - AAC_DEC_TOO_SMALL_ANC_BUFFER = 0x8002, /*!< The registered ancillary data buffer is too small to receive the parsed data. */ - AAC_DEC_TOO_MANY_ANC_ELEMENTS = 0x8003, /*!< More than the allowed number of ancillary data elements should be written to buffer. */ - aac_dec_anc_data_error_end = 0x8FFF - - -} AAC_DECODER_ERROR; - - -/** Macro to identify initialization errors. */ -#define IS_INIT_ERROR(err) ( (((err)>=aac_dec_init_error_start) && ((err)<=aac_dec_init_error_end)) ? 1 : 0) -/** Macro to identify decode errors. */ -#define IS_DECODE_ERROR(err) ( (((err)>=aac_dec_decode_error_start) && ((err)<=aac_dec_decode_error_end)) ? 1 : 0) -/** Macro to identify if the audio output buffer contains valid samples after calling aacDecoder_DecodeFrame(). */ -#define IS_OUTPUT_VALID(err) ( ((err) == AAC_DEC_OK) || IS_DECODE_ERROR(err) ) - -/** - * \brief AAC decoder setting parameters - */ -typedef enum -{ - AAC_PCM_OUTPUT_INTERLEAVED = 0x0000, /*!< PCM output mode (1: interleaved (default); 0: not interleaved). */ - AAC_PCM_OUTPUT_CHANNELS = 0x0001, /*!< Number of PCM output channels (if different from encoded audio channels, downmixing or - upmixing is applied). \n - -1: Disable up-/downmixing. The decoder output contains the same number of channels as the - encoded bitstream. \n - 1: The decoder performs a mono matrix mix-down if the encoded audio channels are greater - than one. Thus it ouputs always exact one channel. \n - 2: The decoder performs a stereo matrix mix-down if the encoded audio channels are greater - than two. If the encoded audio channels are smaller than two the decoder duplicates the - output. Thus it ouputs always exact two channels. \n */ - AAC_PCM_DUAL_CHANNEL_OUTPUT_MODE = 0x0002, /*!< Defines how the decoder processes two channel signals: - 0: Leave both signals as they are (default). - 1: Create a dual mono output signal from channel 1. - 2: Create a dual mono output signal from channel 2. - 3: Create a dual mono output signal by mixing both channels (L' = R' = 0.5*Ch1 + 0.5*Ch2). */ - AAC_PCM_OUTPUT_CHANNEL_MAPPING = 0x0003, /*!< Output buffer channel ordering. 0: MPEG PCE style order, 1: WAV file channel order (default). */ - - AAC_CONCEAL_METHOD = 0x0100, /*!< Error concealment: Processing method. \n - 0: Spectral muting. \n - 1: Noise substitution (see ::CONCEAL_NOISE). \n - 2: Energy interpolation (adds additional signal delay of one frame, see ::CONCEAL_INTER). \n */ - - AAC_DRC_BOOST_FACTOR = 0x0200, /*!< Dynamic Range Control: Scaling factor for boosting gain values. - Defines how the boosting DRC factors (conveyed in the bitstream) will be applied to the - decoded signal. The valid values range from 0 (don't apply boost factors) to 127 (fully - apply all boosting factors). */ - AAC_DRC_ATTENUATION_FACTOR = 0x0201, /*!< Dynamic Range Control: Scaling factor for attenuating gain values. Same as - AAC_DRC_BOOST_FACTOR but for attenuating DRC factors. */ - AAC_DRC_REFERENCE_LEVEL = 0x0202, /*!< Dynamic Range Control: Target reference level. Defines the level below full-scale - (quantized in steps of 0.25dB) to which the output audio signal will be normalized to by - the DRC module. The valid values range from 0 (full-scale) to 127 (31.75 dB below - full-scale). The value smaller than 0 switches off normalization. */ - AAC_DRC_HEAVY_COMPRESSION = 0x0203, /*!< Dynamic Range Control: En-/Disable DVB specific heavy compression (aka RF mode). - If set to 1, the decoder will apply the compression values from the DVB specific ancillary - data field. At the same time the MPEG-4 Dynamic Range Control tool will be disabled. By - default heavy compression is disabled. */ - - AAC_QMF_LOWPOWER = 0x0300, /*!< Quadrature Mirror Filter (QMF) Bank processing mode. \n - -1: Use internal default. Implies MPEG Surround partially complex accordingly. \n - 0: Use complex QMF data mode. \n - 1: Use real (low power) QMF data mode. \n */ - - AAC_MPEGS_ENABLE = 0x0500, /*!< MPEG Surround: Allow/Disable decoding of MPS content. Available only for decoders with MPEG - Surround support. */ - - AAC_TPDEC_CLEAR_BUFFER = 0x0603 /*!< Clear internal bit stream buffer of transport layers. The decoder will start decoding - at new data passed after this event and any previous data is discarded. */ - -} AACDEC_PARAM; - -/** - * \brief This structure gives information about the currently decoded audio data. - * All fields are read-only. - */ -typedef struct -{ - /* These three members are the only really relevant ones for the user. */ - INT sampleRate; /*!< The samplerate in Hz of the fully decoded PCM audio signal (after SBR processing). */ - INT frameSize; /*!< The frame size of the decoded PCM audio signal. \n - 1024 or 960 for AAC-LC \n - 2048 or 1920 for HE-AAC (v2) \n - 512 or 480 for AAC-LD and AAC-ELD */ - INT numChannels; /*!< The number of output audio channels in the decoded and interleaved PCM audio signal. */ - AUDIO_CHANNEL_TYPE *pChannelType; /*!< Audio channel type of each output audio channel. */ - UCHAR *pChannelIndices; /*!< Audio channel index for each output audio channel. - See ISO/IEC 13818-7:2005(E), 8.5.3.2 Explicit channel mapping using a program_config_element() */ - /* Decoder internal members. */ - INT aacSampleRate; /*!< sampling rate in Hz without SBR (from configuration info). */ - INT profile; /*!< MPEG-2 profile (from file header) (-1: not applicable (e. g. MPEG-4)). */ - AUDIO_OBJECT_TYPE aot; /*!< Audio Object Type (from ASC): is set to the appropriate value for MPEG-2 bitstreams (e. g. 2 for AAC-LC). */ - INT channelConfig; /*!< Channel configuration (0: PCE defined, 1: mono, 2: stereo, ... */ - INT bitRate; /*!< Instantaneous bit rate. */ - INT aacSamplesPerFrame; /*!< Samples per frame for the AAC core (from ASC). \n - 1024 or 960 for AAC-LC \n - 512 or 480 for AAC-LD and AAC-ELD */ - INT aacNumChannels; /*!< The number of audio channels after AAC core processing (before PS or MPS processing). - CAUTION: This are not the final number of output channels! */ - AUDIO_OBJECT_TYPE extAot; /*!< Extension Audio Object Type (from ASC) */ - INT extSamplingRate; /*!< Extension sampling rate in Hz (from ASC) */ - - UINT flags; /*!< Copy if internal flags. Only to be written by the decoder, and only to be read externally. */ - - SCHAR epConfig; /*!< epConfig level (from ASC): only level 0 supported, -1 means no ER (e. g. AOT=2, MPEG-2 AAC, etc.) */ - - /* Statistics */ - INT numLostAccessUnits; /*!< This integer will reflect the estimated amount of lost access units in case aacDecoder_DecodeFrame() - returns AAC_DEC_TRANSPORT_SYNC_ERROR. It will be < 0 if the estimation failed. */ - - UINT numTotalBytes; /*!< This is the number of total bytes that have passed through the decoder. */ - UINT numBadBytes; /*!< This is the number of total bytes that were considered with errors from numTotalBytes. */ - UINT numTotalAccessUnits; /*!< This is the number of total access units that have passed through the decoder. */ - UINT numBadAccessUnits; /*!< This is the number of total access units that were considered with errors from numTotalBytes. */ - -} CStreamInfo; - - -typedef struct AAC_DECODER_INSTANCE *HANDLE_AACDECODER; - -#ifdef __cplusplus -extern "C" -{ -#endif - -/** - * \brief Initialize ancillary data buffer. - * - * \param self AAC decoder handle. - * \param buffer Pointer to (external) ancillary data buffer. - * \param size Size of the buffer pointed to by buffer. - * \return Error code. - */ -LINKSPEC_H AAC_DECODER_ERROR -aacDecoder_AncDataInit ( HANDLE_AACDECODER self, - UCHAR *buffer, - int size ); - -/** - * \brief Get one ancillary data element. - * - * \param self AAC decoder handle. - * \param index Index of the ancillary data element to get. - * \param ptr Pointer to a buffer receiving a pointer to the requested ancillary data element. - * \param size Pointer to a buffer receiving the length of the requested ancillary data element. - * \return Error code. - */ -LINKSPEC_H AAC_DECODER_ERROR -aacDecoder_AncDataGet ( HANDLE_AACDECODER self, - int index, - UCHAR **ptr, - int *size ); - -/** - * \brief Set one single decoder parameter. - * - * \param self AAC decoder handle. - * \param param Parameter to be set. - * \param value Parameter value. - * \return Error code. - */ -LINKSPEC_H AAC_DECODER_ERROR -aacDecoder_SetParam ( const HANDLE_AACDECODER self, - const AACDEC_PARAM param, - const INT value ); - - -/** - * \brief Get free bytes inside decoder internal buffer - * \param self Handle of AAC decoder instance - * \param pFreeBytes Pointer to variable receving amount of free bytes inside decoder internal buffer - * \return Error code - */ -LINKSPEC_H AAC_DECODER_ERROR -aacDecoder_GetFreeBytes ( const HANDLE_AACDECODER self, - UINT *pFreeBytes); - -/** - * \brief Open an AAC decoder instance - * \param transportFmt The transport type to be used - * \return AAC decoder handle - */ -LINKSPEC_H HANDLE_AACDECODER -aacDecoder_Open ( TRANSPORT_TYPE transportFmt, UINT nrOfLayers ); - -/** - * \brief Explicitly configure the decoder by passing a raw AudioSpecificConfig (ASC) or a StreamMuxConfig (SMC), - * contained in a binary buffer. This is required for MPEG-4 and Raw Packets file format bitstreams - * as well as for LATM bitstreams with no in-band SMC. If the transport format is LATM with or without - * LOAS, configuration is assumed to be an SMC, for all other file formats an ASC. - * - * \param self AAC decoder handle. - * \param conf Pointer to an unsigned char buffer containing the binary configuration buffer (either ASC or SMC). - * \param length Length of the configuration buffer in bytes. - * \return Error code. - */ -LINKSPEC_H AAC_DECODER_ERROR -aacDecoder_ConfigRaw ( HANDLE_AACDECODER self, - UCHAR *conf[], - const UINT length[] ); - - -/** - * \brief Fill AAC decoder's internal input buffer with bitstream data from the external input buffer. - * The function only copies such data as long as the decoder-internal input buffer is not full. - * So it grabs whatever it can from pBuffer and returns information (bytesValid) so that at a - * subsequent call of %aacDecoder_Fill(), the right position in pBuffer can be determined to - * grab the next data. - * - * \param self AAC decoder handle. - * \param pBuffer Pointer to external input buffer. - * \param bufferSize Size of external input buffer. This argument is required because decoder-internally - * we need the information to calculate the offset to pBuffer, where the next - * available data is, which is then fed into the decoder-internal buffer (as much - * as possible). Our example framework implementation fills the buffer at pBuffer - * again, once it contains no available valid bytes anymore (meaning bytesValid equal 0). - * \param bytesValid Number of bitstream bytes in the external bitstream buffer that have not yet been - * copied into the decoder's internal bitstream buffer by calling this function. - * The value is updated according to the amount of newly copied bytes. - * \return Error code. - */ -LINKSPEC_H AAC_DECODER_ERROR -aacDecoder_Fill ( HANDLE_AACDECODER self, - UCHAR *pBuffer[], - const UINT bufferSize[], - UINT *bytesValid ); - -#define AACDEC_CONCEAL 1 /*!< Flag for aacDecoder_DecodeFrame(): do not consider new input data. Do concealment. */ -#define AACDEC_FLUSH 2 /*!< Flag for aacDecoder_DecodeFrame(): Do not consider new input data. Flush filterbanks (output delayed audio). */ -#define AACDEC_INTR 4 /*!< Flag for aacDecoder_DecodeFrame(): Signal an input bit stream data discontinuity. Resync any internals as necessary. */ -#define AACDEC_CLRHIST 8 /*!< Flag for aacDecoder_DecodeFrame(): Clear all signal delay lines and history buffers. - Caution: This can cause discontinuities in the output signal. */ - -/** - * \brief Decode one audio frame - * - * \param self AAC decoder handle. - * \param pTimeData Pointer to external output buffer where the decoded PCM samples will be stored into. - * \param flags Bit field with flags for the decoder: \n - * (flags & AACDEC_CONCEAL) == 1: Do concealment. \n - * (flags & AACDEC_FLUSH) == 2: Discard input data. Flush filter banks (output delayed audio). \n - * (flags & AACDEC_INTR) == 4: Input data is discontinuous. Resynchronize any internals as necessary. - * \return Error code. - */ -LINKSPEC_H AAC_DECODER_ERROR -aacDecoder_DecodeFrame ( HANDLE_AACDECODER self, - INT_PCM *pTimeData, - const INT timeDataSize, - const UINT flags ); - -/** - * \brief De-allocate all resources of an AAC decoder instance. - * - * \param self AAC decoder handle. - * \return void - */ -LINKSPEC_H void aacDecoder_Close ( HANDLE_AACDECODER self ); - -/** - * \brief Get CStreamInfo handle from decoder. - * - * \param self AAC decoder handle. - * \return Reference to requested CStreamInfo. - */ -LINKSPEC_H CStreamInfo* aacDecoder_GetStreamInfo( HANDLE_AACDECODER self ); - -/** - * \brief Get decoder library info. - * - * \param info Pointer to an allocated LIB_INFO structure. - * \return 0 on success - */ -LINKSPEC_H INT aacDecoder_GetLibInfo( LIB_INFO *info ); - - -#ifdef __cplusplus -} -#endif - -#endif /* AACDECODER_LIB_H */ diff --git a/libAACdec/src/aac_ram.cpp b/libAACdec/src/aac_ram.cpp deleted file mode 100644 index a38f57c..0000000 --- a/libAACdec/src/aac_ram.cpp +++ /dev/null @@ -1,142 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - -******************************************************************************/ - -#include "aac_ram.h" -#include "aac_rom.h" - -#define WORKBUFFER1_TAG 0 -#define WORKBUFFER2_TAG 1 - -/*! The structure AAC_DECODER_INSTANCE is the top level structure holding all decoder configurations, - handles and structs. - */ -C_ALLOC_MEM(AacDecoder, AAC_DECODER_INSTANCE, 1) - -/*! - \name StaticAacData - - Static memory areas, must not be overwritten in other sections of the decoder -*/ -/* @{ */ - -/*! The structure CAacDecoderStaticChannelInfo contains the static sideinfo which is needed - for the decoding of one aac channel. <br> - Dimension: #AacDecoderChannels */ -C_ALLOC_MEM2(AacDecoderStaticChannelInfo, CAacDecoderStaticChannelInfo, 1, (6)) - -/*! The structure CAacDecoderChannelInfo contains the dynamic sideinfo which is needed - for the decoding of one aac channel. <br> - Dimension: #AacDecoderChannels */ -C_ALLOC_MEM2(AacDecoderChannelInfo, CAacDecoderChannelInfo, 1, (6)) - -/*! Overlap buffer */ -C_ALLOC_MEM2(OverlapBuffer, FIXP_DBL, OverlapBufferSize, (6)) - -C_ALLOC_MEM(DrcInfo, CDrcInfo, 1) - -/* @} */ - -/*! - \name DynamicAacData - - Dynamic memory areas, might be reused in other algorithm sections, - e.g. the sbr decoder -*/ -C_ALLOC_MEM_OVERLAY(WorkBufferCore2, FIXP_DBL, ((6)*1024), SECT_DATA_L2, WORKBUFFER2_TAG) - - -C_ALLOC_MEM_OVERLAY(WorkBufferCore1, CWorkBufferCore1, 1, SECT_DATA_L1, WORKBUFFER1_TAG) - -/* @{ */ - - -/* @} */ - - - diff --git a/libAACdec/src/aac_ram.h b/libAACdec/src/aac_ram.h deleted file mode 100644 index 4527e27..0000000 --- a/libAACdec/src/aac_ram.h +++ /dev/null @@ -1,120 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - Description: - -******************************************************************************/ - -#ifndef AAC_RAM_H -#define AAC_RAM_H - -#include "common_fix.h" - -#include "aacdecoder.h" - -#include "channel.h" - -#include "aacdec_hcr_types.h" -#include "aacdec_hcr.h" - -/* End of formal fix.h */ - -#define MAX_SYNCHS 10 -#define SAMPL_FREQS 12 - -H_ALLOC_MEM(AacDecoder, AAC_DECODER_INSTANCE) - -H_ALLOC_MEM(DrcInfo, CDrcInfo) - -H_ALLOC_MEM(AacDecoderStaticChannelInfo, CAacDecoderStaticChannelInfo) -H_ALLOC_MEM(AacDecoderChannelInfo, CAacDecoderChannelInfo) -H_ALLOC_MEM(OverlapBuffer, FIXP_DBL) - -H_ALLOC_MEM_OVERLAY(WorkBufferCore1, CWorkBufferCore1) -H_ALLOC_MEM_OVERLAY(WorkBufferCore2, FIXP_DBL) - - -#endif /* #ifndef AAC_RAM_H */ diff --git a/libAACdec/src/aac_rom.cpp b/libAACdec/src/aac_rom.cpp deleted file mode 100644 index fa04c42..0000000 --- a/libAACdec/src/aac_rom.cpp +++ /dev/null @@ -1,1858 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - Description: Definition of constant tables - -******************************************************************************/ - -#include "aac_rom.h" - - -/* Prescale InverseQuantTable by 4 to save - redundant shifts in invers quantization - */ -#define SCL_TAB(a) (a>>4) -const FIXP_DBL InverseQuantTable [INV_QUANT_TABLESIZE + 1] = -{ - SCL_TAB(0x32CBFD40), SCL_TAB(0x330FC340), SCL_TAB(0x33539FC0), SCL_TAB(0x33979280), SCL_TAB(0x33DB9BC0), SCL_TAB(0x341FBB80), SCL_TAB(0x3463F180), SCL_TAB(0x34A83DC0), - SCL_TAB(0x34ECA000), SCL_TAB(0x35311880), SCL_TAB(0x3575A700), SCL_TAB(0x35BA4B80), SCL_TAB(0x35FF0600), SCL_TAB(0x3643D680), SCL_TAB(0x3688BCC0), SCL_TAB(0x36CDB880), - SCL_TAB(0x3712CA40), SCL_TAB(0x3757F1C0), SCL_TAB(0x379D2F00), SCL_TAB(0x37E28180), SCL_TAB(0x3827E9C0), SCL_TAB(0x386D6740), SCL_TAB(0x38B2FA40), SCL_TAB(0x38F8A2C0), - SCL_TAB(0x393E6080), SCL_TAB(0x39843380), SCL_TAB(0x39CA1BC0), SCL_TAB(0x3A101940), SCL_TAB(0x3A562BC0), SCL_TAB(0x3A9C5340), SCL_TAB(0x3AE28FC0), SCL_TAB(0x3B28E180), - SCL_TAB(0x3B6F4800), SCL_TAB(0x3BB5C340), SCL_TAB(0x3BFC5380), SCL_TAB(0x3C42F880), SCL_TAB(0x3C89B200), SCL_TAB(0x3CD08080), SCL_TAB(0x3D176340), SCL_TAB(0x3D5E5B00), - SCL_TAB(0x3DA56700), SCL_TAB(0x3DEC87C0), SCL_TAB(0x3E33BCC0), SCL_TAB(0x3E7B0640), SCL_TAB(0x3EC26400), SCL_TAB(0x3F09D640), SCL_TAB(0x3F515C80), SCL_TAB(0x3F98F740), - SCL_TAB(0x3FE0A600), SCL_TAB(0x40286900), SCL_TAB(0x40704000), SCL_TAB(0x40B82B00), SCL_TAB(0x41002A00), SCL_TAB(0x41483D00), SCL_TAB(0x41906400), SCL_TAB(0x41D89F00), - SCL_TAB(0x4220ED80), SCL_TAB(0x42695000), SCL_TAB(0x42B1C600), SCL_TAB(0x42FA5000), SCL_TAB(0x4342ED80), SCL_TAB(0x438B9E80), SCL_TAB(0x43D46380), SCL_TAB(0x441D3B80), - SCL_TAB(0x44662780), SCL_TAB(0x44AF2680), SCL_TAB(0x44F83900), SCL_TAB(0x45415F00), SCL_TAB(0x458A9880), SCL_TAB(0x45D3E500), SCL_TAB(0x461D4500), SCL_TAB(0x4666B800), - SCL_TAB(0x46B03E80), SCL_TAB(0x46F9D800), SCL_TAB(0x47438480), SCL_TAB(0x478D4400), SCL_TAB(0x47D71680), SCL_TAB(0x4820FC00), SCL_TAB(0x486AF500), SCL_TAB(0x48B50000), - SCL_TAB(0x48FF1E80), SCL_TAB(0x49494F80), SCL_TAB(0x49939380), SCL_TAB(0x49DDEA80), SCL_TAB(0x4A285400), SCL_TAB(0x4A72D000), SCL_TAB(0x4ABD5E80), SCL_TAB(0x4B080000), - SCL_TAB(0x4B52B400), SCL_TAB(0x4B9D7A80), SCL_TAB(0x4BE85380), SCL_TAB(0x4C333F00), SCL_TAB(0x4C7E3D00), SCL_TAB(0x4CC94D00), SCL_TAB(0x4D146F80), SCL_TAB(0x4D5FA500), - SCL_TAB(0x4DAAEC00), SCL_TAB(0x4DF64580), SCL_TAB(0x4E41B180), SCL_TAB(0x4E8D2F00), SCL_TAB(0x4ED8BF80), SCL_TAB(0x4F246180), SCL_TAB(0x4F701600), SCL_TAB(0x4FBBDC00), - SCL_TAB(0x5007B480), SCL_TAB(0x50539F00), SCL_TAB(0x509F9B80), SCL_TAB(0x50EBA980), SCL_TAB(0x5137C980), SCL_TAB(0x5183FB80), SCL_TAB(0x51D03F80), SCL_TAB(0x521C9500), - SCL_TAB(0x5268FC80), SCL_TAB(0x52B57580), SCL_TAB(0x53020000), SCL_TAB(0x534E9C80), SCL_TAB(0x539B4A80), SCL_TAB(0x53E80A80), SCL_TAB(0x5434DB80), SCL_TAB(0x5481BE80), - SCL_TAB(0x54CEB280), SCL_TAB(0x551BB880), SCL_TAB(0x5568CF80), SCL_TAB(0x55B5F800), SCL_TAB(0x56033200), SCL_TAB(0x56507D80), SCL_TAB(0x569DDA00), SCL_TAB(0x56EB4800), - SCL_TAB(0x5738C700), SCL_TAB(0x57865780), SCL_TAB(0x57D3F900), SCL_TAB(0x5821AC00), SCL_TAB(0x586F7000), SCL_TAB(0x58BD4500), SCL_TAB(0x590B2B00), SCL_TAB(0x59592200), - SCL_TAB(0x59A72A80), SCL_TAB(0x59F54380), SCL_TAB(0x5A436D80), SCL_TAB(0x5A91A900), SCL_TAB(0x5ADFF500), SCL_TAB(0x5B2E5180), SCL_TAB(0x5B7CBF80), SCL_TAB(0x5BCB3E00), - SCL_TAB(0x5C19CD00), SCL_TAB(0x5C686D80), SCL_TAB(0x5CB71E00), SCL_TAB(0x5D05DF80), SCL_TAB(0x5D54B200), SCL_TAB(0x5DA39500), SCL_TAB(0x5DF28880), SCL_TAB(0x5E418C80), - SCL_TAB(0x5E90A100), SCL_TAB(0x5EDFC680), SCL_TAB(0x5F2EFC00), SCL_TAB(0x5F7E4280), SCL_TAB(0x5FCD9900), SCL_TAB(0x601D0080), SCL_TAB(0x606C7800), SCL_TAB(0x60BC0000), - SCL_TAB(0x610B9800), SCL_TAB(0x615B4100), SCL_TAB(0x61AAF980), SCL_TAB(0x61FAC300), SCL_TAB(0x624A9C80), SCL_TAB(0x629A8600), SCL_TAB(0x62EA8000), SCL_TAB(0x633A8A00), - SCL_TAB(0x638AA480), SCL_TAB(0x63DACF00), SCL_TAB(0x642B0980), SCL_TAB(0x647B5400), SCL_TAB(0x64CBAE80), SCL_TAB(0x651C1900), SCL_TAB(0x656C9400), SCL_TAB(0x65BD1E80), - SCL_TAB(0x660DB900), SCL_TAB(0x665E6380), SCL_TAB(0x66AF1E00), SCL_TAB(0x66FFE880), SCL_TAB(0x6750C280), SCL_TAB(0x67A1AC80), SCL_TAB(0x67F2A600), SCL_TAB(0x6843B000), - SCL_TAB(0x6894C900), SCL_TAB(0x68E5F200), SCL_TAB(0x69372B00), SCL_TAB(0x69887380), SCL_TAB(0x69D9CB80), SCL_TAB(0x6A2B3300), SCL_TAB(0x6A7CAA80), SCL_TAB(0x6ACE3180), - SCL_TAB(0x6B1FC800), SCL_TAB(0x6B716E00), SCL_TAB(0x6BC32400), SCL_TAB(0x6C14E900), SCL_TAB(0x6C66BD80), SCL_TAB(0x6CB8A180), SCL_TAB(0x6D0A9500), SCL_TAB(0x6D5C9800), - SCL_TAB(0x6DAEAA00), SCL_TAB(0x6E00CB80), SCL_TAB(0x6E52FC80), SCL_TAB(0x6EA53D00), SCL_TAB(0x6EF78C80), SCL_TAB(0x6F49EB80), SCL_TAB(0x6F9C5980), SCL_TAB(0x6FEED700), - SCL_TAB(0x70416380), SCL_TAB(0x7093FF00), SCL_TAB(0x70E6AA00), SCL_TAB(0x71396400), SCL_TAB(0x718C2D00), SCL_TAB(0x71DF0580), SCL_TAB(0x7231ED00), SCL_TAB(0x7284E300), - SCL_TAB(0x72D7E880), SCL_TAB(0x732AFD00), SCL_TAB(0x737E2080), SCL_TAB(0x73D15300), SCL_TAB(0x74249480), SCL_TAB(0x7477E480), SCL_TAB(0x74CB4400), SCL_TAB(0x751EB200), - SCL_TAB(0x75722F00), SCL_TAB(0x75C5BB00), SCL_TAB(0x76195580), SCL_TAB(0x766CFF00), SCL_TAB(0x76C0B700), SCL_TAB(0x77147E00), SCL_TAB(0x77685400), SCL_TAB(0x77BC3880), - SCL_TAB(0x78102B80), SCL_TAB(0x78642D80), SCL_TAB(0x78B83E00), SCL_TAB(0x790C5D00), SCL_TAB(0x79608B00), SCL_TAB(0x79B4C780), SCL_TAB(0x7A091280), SCL_TAB(0x7A5D6C00), - SCL_TAB(0x7AB1D400), SCL_TAB(0x7B064A80), SCL_TAB(0x7B5ACF80), SCL_TAB(0x7BAF6380), SCL_TAB(0x7C040580), SCL_TAB(0x7C58B600), SCL_TAB(0x7CAD7500), SCL_TAB(0x7D024200), - SCL_TAB(0x7D571E00), SCL_TAB(0x7DAC0800), SCL_TAB(0x7E010080), SCL_TAB(0x7E560780), SCL_TAB(0x7EAB1C80), SCL_TAB(0x7F004000), SCL_TAB(0x7F557200), SCL_TAB(0x7FAAB200), - SCL_TAB(0x7FFFFFFF) -} ; - -/** - * \brief Table representing scale factor gains. Given a scale factor sf, and a value pSpec[i] the - * gain is given by: MantissaTable[sf % 4][msb] = 2^(sf % 4) / (1<<ExponentTable[sf % 4][msb] - * The second dimension "msb" represents the upper scale factor bit count floor(log2(scalefactor >> 2)) - * The corresponding exponents for the values in this tables are stored in ExponentTable[sf % 4][msb] below. - */ -const FIXP_DBL MantissaTable [4][14] = -{ - { - 0x40000000, 0x50A28C00, 0x6597FA80, 0x40000000, 0x50A28C00, 0x6597FA80, 0x40000000, 0x50A28C00, - 0x6597FA80, 0x40000000, 0x50A28C00, 0x6597FA80, 0x40000000, 0x50A28C00 - }, - { - 0x4C1BF800, 0x5FE44380, 0x78D0DF80, 0x4C1BF800, 0x5FE44380, 0x78D0DF80, 0x4C1BF800, 0x5FE44380, - 0x78D0DF80, 0x4C1BF800, 0x5FE44380, 0x78D0DF80, 0x4C1BF800, 0x5FE44380 - }, - { - 0x5A827980, 0x7208F800, 0x47D66B00, 0x5A827980, 0x7208F800, 0x47D66B00, 0x5A827980, 0x7208F800, - 0x47D66B00, 0x5A827980, 0x7208F800, 0x47D66B00, 0x5A827980, 0x7208F800 - }, - { - 0x6BA27E80, 0x43CE3E80, 0x556E0400, 0x6BA27E80, 0x43CE3E80, 0x556E0400, 0x6BA27E80, 0x43CE3E80, - 0x556E0400, 0x6BA27E80, 0x43CE3E80, 0x556E0400, 0x6BA27E80, 0x43CE3E80 - } -} ; - -const SCHAR ExponentTable [4][14] = -{ - { 1, 2, 3, 5, 6, 7, 9, 10, 11, 13, 14, 15, 17, 18 }, - { 1, 2, 3, 5, 6, 7, 9, 10, 11, 13, 14, 15, 17, 18 }, - { 1, 2, 4, 5, 6, 8, 9, 10, 12, 13, 14, 16, 17, 18 }, - { 1, 3, 4, 5, 7, 8, 9, 11, 12, 13, 15, 16, 17, 19 } -} ; - - - -/* 49 scfbands */ -static const SHORT sfb_48_1024[50] = { - 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 48, 56, 64, - 72, 80, 88, 96, 108, 120, 132, 144, 160, 176, 196, 216, 240, 264, - 292, 320, 352, 384, 416, 448, 480, 512, 544, 576, 608, 640, 672, 704, - 736, 768, 800, 832, 864, 896, 928, 1024 -}; -/* 14 scfbands */ -static const SHORT sfb_48_128[15] = -{ - 0, 4, 8, 12, 16, 20, 28, 36, 44, 56, 68, 80, 96, 112, - 128 -}; - -/* 51 scfbands */ -static const SHORT sfb_32_1024[52] = -{ - 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 48, 56, 64, - 72, 80, 88, 96, 108, 120, 132, 144, 160, 176, 196, 216, 240, 264, - 292, 320, 352, 384, 416, 448, 480, 512, 544, 576, 608, 640, 672, 704, - 736, 768, 800, 832, 864, 896, 928, 960, 992,1024 -}; - -/* 47 scfbands */ -static const SHORT sfb_24_1024[48] = -{ - 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 52, 60, - 68, 76, 84, 92, 100, 108, 116, 124, 136, 148, 160, 172, 188, 204, - 220, 240, 260, 284, 308, 336, 364, 396, 432, 468, 508, 552, 600, 652, - 704, 768, 832, 896, 960,1024 -}; - -/* 15 scfbands */ -static const SHORT sfb_24_128[16] = -{ - 0, 4, 8, 12, 16, 20, 24, 28, 36, 44, 52, 64, 76, 92, - 108, 128 -}; - -/* 43 scfbands */ -static const SHORT sfb_16_1024[44] = -{ - 0, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 100, 112, - 124, 136, 148, 160, 172, 184, 196, 212, 228, 244, 260, 280, 300, 320, - 344, 368, 396, 424, 456, 492, 532, 572, 616, 664, 716, 772, 832, 896, - 960,1024 -}; - -/* 15 scfbands */ -static const SHORT sfb_16_128[16] = -{ - 0, 4, 8, 12, 16, 20, 24, 28, 32, 40, 48, 60, 72, 88, - 108, 128 -}; - -/* 40 scfbands */ -static const SHORT sfb_8_1024[41] = -{ - 0, 12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, - 172, 188, 204, 220, 236, 252, 268, 288, 308, 328, 348, 372, 396, 420, - 448, 476, 508, 544, 580, 620, 664, 712, 764, 820, 880, 944,1024 -}; - -/* 15 scfbands */ -static const SHORT sfb_8_128[16] = -{ - 0, 4, 8, 12, 16, 20, 24, 28, 36, 44, 52, 60, 72, 88, - 108, 128 -}; - - - -static const SHORT sfb_48_960[50] = -{ - 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, - 40, 48, 56, 64, 72, 80, 88, 96, 108, 120, - 132, 144, 160, 176, 196, 216, 240, 264, 292, 320, - 352, 384, 416, 448, 480, 512, 544, 576, 608, 640, - 672, 704, 736, 768, 800, 832, 864, 896, 928, 960 -}; /* 49 scfbands */ -static const SHORT sfb_48_120[15] = -{ - 0, 4, 8, 12, 16, 20, 28, 36, 44, 56, - 68, 80, 96, 112, 120 -}; /* 14 scfbands */ - -static const SHORT sfb_32_960[50] = -{ - 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, - 40, 48, 56, 64, 72, 80, 88, 96, 108, 120, - 132, 144, 160, 176, 196, 216, 240, 264, 292, 320, - 352, 384, 416, 448, 480, 512, 544, 576, 608, 640, - 672, 704, 736, 768, 800, 832, 864, 896, 928, 960 -}; /* 49 scfbands */ - -static const SHORT sfb_24_960[47] = -{ - 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, - 40, 44, 52, 60, 68, 76, 84, 92, 100, 108, - 116, 124, 136, 148, 160, 172, 188, 204, 220, 240, - 260, 284, 308, 336, 364, 396, 432, 468, 508, 552, - 600, 652, 704, 768, 832, 896, 960 -}; /* 46 scfbands */ - -static const SHORT sfb_24_120[16] = -{ - 0, 4, 8, 12, 16, 20, 24, 28, 36, 44, - 52, 64, 76, 92, 108, 120 -}; /* 15 scfbands */ - -static const SHORT sfb_16_960[43] = -{ - 0, 8, 16, 24, 32, 40, 48, 56, 64, 72, - 80, 88, 100, 112, 124, 136, 148, 160, 172, 184, - 196, 212, 228, 244, 260, 280, 300, 320, 344, 368, - 396, 424, 456, 492, 532, 572, 616, 664, 716, 772, - 832, 896, 960 -}; /* 42 scfbands */ - -static const SHORT sfb_16_120[16] = -{ - 0, 4, 8, 12, 16, 20, 24, 28, 32, 40, - 48, 60, 72, 88, 108, 120 -}; /* 15 scfbands */ - -static const SHORT sfb_8_960[41] = -{ - 0, 12, 24, 36, 48, 60, 72, 84, 96, 108, - 120, 132, 144, 156, 172, 188, 204, 220, 236, 252, - 268, 288, 308, 328, 348, 372, 396, 420, 448, 476, - 508, 544, 580, 620, 664, 712, 764, 820, 880, 944, - 960 -}; /* 40 scfbands */ - -static const SHORT sfb_8_120[16] = -{ - 0, 4, 8, 12, 16, 20, 24, 28, 36, 44, - 52, 60, 72, 88, 108, 120 -}; /* 15 scfbands */ - - - - -static const SHORT sfb_48_512[37] = -{ - 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, - 40, 44, 48, 52, 56, 60, 68, 76, 84, 92, - 100, 112, 124, 136, 148, 164, 184, 208, 236, 268, - 300, 332, 364, 396, 428, 460, 512 -}; /* 36 scfbands */ -static const SHORT sfb_32_512[38] = -{ - 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, - 40, 44, 48, 52, 56, 64, 72, 80, 88, 96, - 108, 120, 132, 144, 160, 176, 192, 212, 236, 260, - 288, 320, 352, 384, 416, 448, 480, 512 -}; /* 37 scfbands */ -static const SHORT sfb_24_512[32] = -{ - 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, - 40, 44, 52, 60, 68, 80, 92, 104, 120, 140, - 164, 192, 224, 256, 288, 320, 352, 384, 416, 448, - 480, 512 -}; /* 31 scfbands */ - -static const SHORT sfb_48_480[36] = -{ - 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, - 40, 44, 48, 52, 56, 64, 72, 80, 88, 96, - 108, 120, 132, 144, 156, 172, 188, 212, 240, 272, - 304, 336, 368, 400, 432, 480 -}; /* 35 scfbands */ -static const SHORT sfb_32_480[38] = -{ - 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, - 40, 44, 48, 52, 56, 60, 64, 72, 80, 88, - 96, 104, 112, 124, 136, 148, 164, 180, 200, 224, - 256, 288, 320, 352, 384, 416, 448, 480 -}; /* 37 scfbands */ -static const SHORT sfb_24_480[31] = -{ - 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, - 40, 44, 52, 60, 68, 80, 92, 104, 120, 140, - 164, 192, 224, 256, 288, 320, 352, 384, 416, 448, - 480 -}; /* 30 scfbands */ - -const SFB_INFO sfbOffsetTables[5][16] = -{ - { - { NULL, NULL, 0, 0 }, - { NULL, NULL, 0, 0 }, - { NULL, NULL, 0, 0 }, - { sfb_48_1024, sfb_48_128, 49, 14 }, - { sfb_48_1024, sfb_48_128, 49, 14 }, - { sfb_32_1024, sfb_48_128, 51, 14 }, - { sfb_24_1024, sfb_24_128, 47, 15 }, - { sfb_24_1024, sfb_24_128, 47, 15 }, - { sfb_16_1024, sfb_16_128, 43, 15 }, - { sfb_16_1024, sfb_16_128, 43, 15 }, - { sfb_16_1024, sfb_16_128, 43, 15 }, - { sfb_8_1024, sfb_8_128, 40, 15 }, - { sfb_8_1024, sfb_8_128, 40, 15 }, - }, { - { NULL, NULL, 0, 0 }, - { NULL, NULL, 0, 0 }, - { NULL, NULL, 0, 0 }, - { sfb_48_960, sfb_48_120, 49, 14 }, - { sfb_48_960, sfb_48_120, 49, 14 }, - { sfb_32_960, sfb_48_120, 49, 14 }, - { sfb_24_960, sfb_24_120, 46, 15 }, - { sfb_24_960, sfb_24_120, 46, 15 }, - { sfb_16_960, sfb_16_120, 42, 15 }, - { sfb_16_960, sfb_16_120, 42, 15 }, - { sfb_16_960, sfb_16_120, 42, 15 }, - { sfb_8_960, sfb_8_120, 40, 15 }, - { sfb_8_960, sfb_8_120, 40, 15 }, - }, { - { NULL, NULL, 0, 0 }, - }, { - { NULL, NULL, 0, 0 }, - { NULL, NULL, 0, 0 }, - { NULL, NULL, 0, 0 }, - { sfb_48_512, NULL, 36, 0 }, - { sfb_48_512, NULL, 36, 0}, - { sfb_32_512, NULL, 37, 0 }, - { sfb_24_512, NULL, 31, 0 }, - { sfb_24_512, NULL, 31, 0 }, - { sfb_24_512, NULL, 31, 0 }, - { sfb_24_512, NULL, 31, 0 }, - { sfb_24_512, NULL, 31, 0 }, - { sfb_24_512, NULL, 31, 0 }, - { sfb_24_512, NULL, 31, 0 }, - }, { - { NULL, NULL, 0, 0 }, - { NULL, NULL, 0, 0 }, - { NULL, NULL, 0, 0 }, - { sfb_48_480, NULL, 35, 0 }, - { sfb_48_480, NULL, 35, 0 }, - { sfb_32_480, NULL, 37, 0 }, - { sfb_24_480, NULL, 30, 0 }, - { sfb_24_480, NULL, 30, 0 }, - { sfb_24_480, NULL, 30, 0 }, - { sfb_24_480, NULL, 30, 0 }, - { sfb_24_480, NULL, 30, 0 }, - { sfb_24_480, NULL, 30, 0 }, - { sfb_24_480, NULL, 30, 0 }, - } -}; - - -/*# don't use 1 bit hufman tables */ -/* - MPEG-2 AAC 2 BITS parallel Hufman Tables - - Bit 0: = 1=ENDNODE, 0=INDEX - Bit 1: = CODEWORD LEN MOD 2 - Bit 2..9: = VALUE/REF Tables 1..10,SCL - Bit 2..11: = VALUE/REF Table 11 -*/ - const USHORT HuffmanCodeBook_1[51][4] = -{ - {0x0157,0x0157,0x0004,0x0018}, {0x0008,0x000c,0x0010,0x0014}, {0x015b,0x015b,0x0153,0x0153}, {0x0057,0x0057,0x0167,0x0167}, - {0x0257,0x0257,0x0117,0x0117}, {0x0197,0x0197,0x0147,0x0147}, {0x001c,0x0030,0x0044,0x0058}, {0x0020,0x0024,0x0028,0x002c}, - {0x014b,0x014b,0x0163,0x0163}, {0x0217,0x0217,0x0127,0x0127}, {0x0187,0x0187,0x0097,0x0097}, {0x016b,0x016b,0x0017,0x0017}, - {0x0034,0x0038,0x003c,0x0040}, {0x0143,0x0143,0x0107,0x0107}, {0x011b,0x011b,0x0067,0x0067}, {0x0193,0x0193,0x0297,0x0297}, - {0x019b,0x019b,0x0247,0x0247}, {0x0048,0x004c,0x0050,0x0054}, {0x01a7,0x01a7,0x0267,0x0267}, {0x0113,0x0113,0x025b,0x025b}, - {0x0053,0x0053,0x005b,0x005b}, {0x0253,0x0253,0x0047,0x0047}, {0x005c,0x0070,0x0084,0x0098}, {0x0060,0x0064,0x0068,0x006c}, - {0x012b,0x012b,0x0123,0x0123}, {0x018b,0x018b,0x00a7,0x00a7}, {0x0227,0x0227,0x0287,0x0287}, {0x0087,0x0087,0x010b,0x010b}, - {0x0074,0x0078,0x007c,0x0080}, {0x021b,0x021b,0x0027,0x0027}, {0x01a3,0x01a3,0x0093,0x0093}, {0x0183,0x0183,0x0207,0x0207}, - {0x024b,0x024b,0x004b,0x004b}, {0x0088,0x008c,0x0090,0x0094}, {0x0063,0x0063,0x0103,0x0103}, {0x0007,0x0007,0x02a7,0x02a7}, - {0x009b,0x009b,0x026b,0x026b}, {0x0263,0x0263,0x01ab,0x01ab}, {0x009c,0x00a0,0x00a4,0x00b8}, {0x0241,0x0011,0x0069,0x0019}, - {0x0211,0x0041,0x0291,0x0299}, {0x00a8,0x00ac,0x00b0,0x00b4}, {0x008b,0x008b,0x0223,0x0223}, {0x00a3,0x00a3,0x020b,0x020b}, - {0x02ab,0x02ab,0x0283,0x0283}, {0x002b,0x002b,0x0083,0x0083}, {0x00bc,0x00c0,0x00c4,0x00c8}, {0x0003,0x0003,0x022b,0x022b}, - {0x028b,0x028b,0x02a3,0x02a3}, {0x0023,0x0023,0x0203,0x0203}, {0x000b,0x000b,0x00ab,0x00ab} -}; - -const USHORT HuffmanCodeBook_2[39][4] = -{ - {0x0004,0x000c,0x0020,0x0034}, {0x0157,0x0157,0x0159,0x0008}, {0x0153,0x0153,0x0257,0x0257}, {0x0010,0x0014,0x0018,0x001c}, - {0x0117,0x0117,0x0057,0x0057}, {0x0147,0x0147,0x0197,0x0197}, {0x0167,0x0167,0x0185,0x0161}, {0x0125,0x0095,0x0065,0x0215}, - {0x0024,0x0028,0x002c,0x0030}, {0x0051,0x0149,0x0119,0x0141}, {0x0015,0x0199,0x0259,0x0245}, {0x0191,0x0265,0x0105,0x0251}, - {0x0045,0x0111,0x0169,0x01a5}, {0x0038,0x0044,0x0058,0x006c}, {0x0295,0x0059,0x003c,0x0040}, {0x0227,0x0227,0x021b,0x021b}, - {0x0123,0x0123,0x0087,0x0087}, {0x0048,0x004c,0x0050,0x0054}, {0x018b,0x018b,0x006b,0x006b}, {0x029b,0x029b,0x01a3,0x01a3}, - {0x0207,0x0207,0x01ab,0x01ab}, {0x0093,0x0093,0x0103,0x0103}, {0x005c,0x0060,0x0064,0x0068}, {0x0213,0x0213,0x010b,0x010b}, - {0x012b,0x012b,0x0249,0x0061}, {0x0181,0x0291,0x0241,0x0041}, {0x0005,0x0099,0x0019,0x0025}, {0x0070,0x0074,0x0078,0x0088}, - {0x02a5,0x0261,0x0011,0x00a5}, {0x0049,0x0285,0x0269,0x0089}, {0x0221,0x007c,0x0080,0x0084}, {0x020b,0x020b,0x0003,0x0003}, - {0x00a3,0x00a3,0x02a3,0x02a3}, {0x02ab,0x02ab,0x0083,0x0083}, {0x008c,0x0090,0x0094,0x0098}, {0x028b,0x028b,0x0023,0x0023}, - {0x0283,0x0283,0x002b,0x002b}, {0x000b,0x000b,0x0203,0x0203}, {0x022b,0x022b,0x00ab,0x00ab} -}; - -const USHORT HuffmanCodeBook_3[39][4] = -{ - {0x0003,0x0003,0x0004,0x0008}, {0x0005,0x0101,0x0011,0x0041}, {0x000c,0x0010,0x0014,0x0020}, {0x0017,0x0017,0x0143,0x0143}, - {0x0051,0x0111,0x0045,0x0151}, {0x0105,0x0055,0x0018,0x001c}, {0x0157,0x0157,0x0147,0x0147}, {0x0117,0x0117,0x0009,0x0201}, - {0x0024,0x002c,0x0040,0x0054}, {0x0241,0x0019,0x0065,0x0028}, {0x0183,0x0183,0x0193,0x0193}, {0x0030,0x0034,0x0038,0x003c}, - {0x0027,0x0027,0x0253,0x0253}, {0x005b,0x005b,0x0083,0x0083}, {0x0063,0x0063,0x0093,0x0093}, {0x0023,0x0023,0x0213,0x0213}, - {0x0044,0x0048,0x004c,0x0050}, {0x004b,0x004b,0x0167,0x0167}, {0x0163,0x0163,0x0097,0x0097}, {0x0197,0x0197,0x0125,0x0085}, - {0x0185,0x0121,0x0159,0x0255}, {0x0058,0x005c,0x0060,0x0070}, {0x0119,0x0245,0x0281,0x0291}, {0x0069,0x00a5,0x0205,0x0109}, - {0x01a1,0x0064,0x0068,0x006c}, {0x002b,0x002b,0x01a7,0x01a7}, {0x0217,0x0217,0x014b,0x014b}, {0x0297,0x0297,0x016b,0x016b}, - {0x0074,0x0078,0x007c,0x0080}, {0x00a3,0x00a3,0x0263,0x0263}, {0x0285,0x0129,0x0099,0x00a9}, {0x02a1,0x01a9,0x0199,0x0265}, - {0x02a5,0x0084,0x0088,0x008c}, {0x0223,0x0223,0x008b,0x008b}, {0x0227,0x0227,0x0189,0x0259}, {0x0219,0x0090,0x0094,0x0098}, - {0x02ab,0x02ab,0x026b,0x026b}, {0x029b,0x029b,0x024b,0x024b}, {0x020b,0x020b,0x0229,0x0289} -}; - -const USHORT HuffmanCodeBook_4[38][4] = -{ - {0x0004,0x0008,0x000c,0x0018}, {0x0155,0x0151,0x0115,0x0055}, {0x0145,0x0005,0x0015,0x0001}, {0x0141,0x0045,0x0010,0x0014}, - {0x0107,0x0107,0x0053,0x0053}, {0x0103,0x0103,0x0113,0x0113}, {0x001c,0x0020,0x0034,0x0048}, {0x0043,0x0043,0x0013,0x0013}, - {0x0024,0x0028,0x002c,0x0030}, {0x015b,0x015b,0x0197,0x0197}, {0x0167,0x0167,0x0257,0x0257}, {0x005b,0x005b,0x011b,0x011b}, - {0x0067,0x0067,0x014b,0x014b}, {0x0038,0x003c,0x0040,0x0044}, {0x0193,0x0193,0x0251,0x0095}, {0x0161,0x0245,0x0125,0x0215}, - {0x0185,0x0019,0x0049,0x0025}, {0x0109,0x0211,0x0061,0x0241}, {0x004c,0x0050,0x0058,0x006c}, {0x0091,0x0121,0x0205,0x0181}, - {0x0085,0x0009,0x0201,0x0054}, {0x0023,0x0023,0x0083,0x0083}, {0x005c,0x0060,0x0064,0x0068}, {0x01a7,0x01a7,0x016b,0x016b}, - {0x019b,0x019b,0x0297,0x0297}, {0x0267,0x0267,0x025b,0x025b}, {0x00a5,0x0069,0x0099,0x01a1}, {0x0070,0x0074,0x0078,0x0084}, - {0x0291,0x0129,0x0261,0x0189}, {0x0285,0x01a9,0x0225,0x0249}, {0x0219,0x02a5,0x007c,0x0080}, {0x029b,0x029b,0x026b,0x026b}, - {0x00a3,0x00a3,0x002b,0x002b}, {0x0088,0x008c,0x0090,0x0094}, {0x0283,0x0283,0x008b,0x008b}, {0x0223,0x0223,0x020b,0x020b}, - {0x02ab,0x02ab,0x02a3,0x02a3}, {0x00ab,0x00ab,0x0229,0x0289} -}; - -const USHORT HuffmanCodeBook_5[41][4] = -{ - {0x0113,0x0113,0x0004,0x0008}, {0x010d,0x0115,0x0151,0x00d1}, {0x000c,0x0010,0x0014,0x0028}, {0x00d7,0x00d7,0x014f,0x014f}, - {0x00cf,0x00cf,0x0157,0x0157}, {0x0018,0x001c,0x0020,0x0024}, {0x010b,0x010b,0x0193,0x0193}, {0x011b,0x011b,0x0093,0x0093}, - {0x00c9,0x0159,0x008d,0x0195}, {0x0149,0x00d9,0x018d,0x0095}, {0x002c,0x0030,0x0044,0x0058}, {0x0105,0x011d,0x0051,0x01d1}, - {0x0034,0x0038,0x003c,0x0040}, {0x00c7,0x00c7,0x01d7,0x01d7}, {0x015f,0x015f,0x004f,0x004f}, {0x0147,0x0147,0x00df,0x00df}, - {0x0057,0x0057,0x01cf,0x01cf}, {0x0048,0x004c,0x0050,0x0054}, {0x018b,0x018b,0x019b,0x019b}, {0x008b,0x008b,0x009b,0x009b}, - {0x0085,0x009d,0x01c9,0x0059}, {0x019d,0x01d9,0x0185,0x0049}, {0x005c,0x0060,0x0074,0x0088}, {0x0011,0x0101,0x0161,0x0121}, - {0x0064,0x0068,0x006c,0x0070}, {0x00c3,0x00c3,0x0213,0x0213}, {0x00e3,0x00e3,0x000f,0x000f}, {0x0217,0x0217,0x020f,0x020f}, - {0x0143,0x0143,0x0017,0x0017}, {0x0078,0x007c,0x0080,0x0084}, {0x005f,0x005f,0x0047,0x0047}, {0x01c7,0x01c7,0x020b,0x020b}, - {0x0083,0x0083,0x01a3,0x01a3}, {0x001b,0x001b,0x021b,0x021b}, {0x008c,0x0090,0x0094,0x0098}, {0x01df,0x01df,0x0183,0x0183}, - {0x0009,0x00a1,0x001d,0x0041}, {0x01c1,0x021d,0x0205,0x01e1}, {0x0061,0x0005,0x009c,0x00a0}, {0x0023,0x0023,0x0203,0x0203}, - {0x0223,0x0223,0x0003,0x0003} -}; - -const USHORT HuffmanCodeBook_6[40][4] = -{ - {0x0004,0x0008,0x000c,0x001c}, {0x0111,0x0115,0x00d1,0x0151}, {0x010d,0x0155,0x014d,0x00d5}, {0x00cd,0x0010,0x0014,0x0018}, - {0x00d9,0x0159,0x0149,0x00c9}, {0x0109,0x018d,0x0119,0x0095}, {0x0195,0x0091,0x008d,0x0191}, {0x0020,0x0024,0x0038,0x004c}, - {0x0099,0x0189,0x0089,0x0199}, {0x0028,0x002c,0x0030,0x0034}, {0x0147,0x0147,0x015f,0x015f}, {0x00df,0x00df,0x01cf,0x01cf}, - {0x00c7,0x00c7,0x01d7,0x01d7}, {0x0057,0x0057,0x004f,0x004f}, {0x003c,0x0040,0x0044,0x0048}, {0x011f,0x011f,0x0107,0x0107}, - {0x0053,0x0053,0x01d3,0x01d3}, {0x019f,0x019f,0x0085,0x01c9}, {0x01d9,0x009d,0x0059,0x0049}, {0x0050,0x005c,0x0070,0x0084}, - {0x0185,0x01dd,0x0054,0x0058}, {0x005f,0x005f,0x0047,0x0047}, {0x01c7,0x01c7,0x0017,0x0017}, {0x0060,0x0064,0x0068,0x006c}, - {0x000f,0x000f,0x0163,0x0163}, {0x0143,0x0143,0x00c3,0x00c3}, {0x0217,0x0217,0x00e3,0x00e3}, {0x020f,0x020f,0x0013,0x0013}, - {0x0074,0x0078,0x007c,0x0080}, {0x0183,0x0183,0x0083,0x0083}, {0x021b,0x021b,0x000b,0x000b}, {0x0103,0x0103,0x01a3,0x01a3}, - {0x00a3,0x00a3,0x020b,0x020b}, {0x0088,0x008c,0x0090,0x0094}, {0x0123,0x0123,0x001b,0x001b}, {0x0213,0x0213,0x0005,0x0205}, - {0x001d,0x0061,0x021d,0x01e1}, {0x01c1,0x0041,0x0098,0x009c}, {0x0223,0x0223,0x0203,0x0203}, {0x0003,0x0003,0x0023,0x0023} -}; - -const USHORT HuffmanCodeBook_7[31][4] = -{ - {0x0003,0x0003,0x0004,0x0008}, {0x0007,0x0007,0x0043,0x0043}, {0x0045,0x000c,0x0010,0x0024}, {0x0049,0x0085,0x0009,0x0081}, - {0x0014,0x0018,0x001c,0x0020}, {0x004f,0x004f,0x00c7,0x00c7}, {0x008b,0x008b,0x000f,0x000f}, {0x00c3,0x00c3,0x00c9,0x008d}, - {0x0105,0x0051,0x0145,0x0055}, {0x0028,0x002c,0x0040,0x0054}, {0x00cd,0x0109,0x0101,0x0011}, {0x0030,0x0034,0x0038,0x003c}, - {0x0093,0x0093,0x014b,0x014b}, {0x0097,0x0097,0x0143,0x0143}, {0x005b,0x005b,0x0017,0x0017}, {0x0187,0x0187,0x00d3,0x00d3}, - {0x0044,0x0048,0x004c,0x0050}, {0x014f,0x014f,0x010f,0x010f}, {0x00d7,0x00d7,0x018b,0x018b}, {0x009b,0x009b,0x01c7,0x01c7}, - {0x018d,0x0181,0x0019,0x0111}, {0x0058,0x005c,0x0060,0x0068}, {0x005d,0x0151,0x009d,0x0115}, {0x00d9,0x01c9,0x00dd,0x0119}, - {0x0155,0x0191,0x01cd,0x0064}, {0x001f,0x001f,0x01c3,0x01c3}, {0x006c,0x0070,0x0074,0x0078}, {0x015b,0x015b,0x0197,0x0197}, - {0x011f,0x011f,0x01d3,0x01d3}, {0x01d7,0x01d7,0x015f,0x015f}, {0x019d,0x0199,0x01d9,0x01dd} -}; - -const USHORT HuffmanCodeBook_8[31][4] = -{ - {0x0004,0x0008,0x0010,0x0024}, {0x0047,0x0047,0x0049,0x0005}, {0x0085,0x0041,0x0089,0x000c}, {0x0003,0x0003,0x000b,0x000b}, - {0x0014,0x0018,0x001c,0x0020}, {0x0083,0x0083,0x004f,0x004f}, {0x00c7,0x00c7,0x008f,0x008f}, {0x00cb,0x00cb,0x00cd,0x0051}, - {0x0105,0x0091,0x0109,0x000d}, {0x0028,0x002c,0x0040,0x0054}, {0x00c1,0x00d1,0x010d,0x0095}, {0x0030,0x0034,0x0038,0x003c}, - {0x0057,0x0057,0x014b,0x014b}, {0x0147,0x0147,0x00d7,0x00d7}, {0x014f,0x014f,0x0113,0x0113}, {0x0117,0x0117,0x0103,0x0103}, - {0x0044,0x0048,0x004c,0x0050}, {0x0153,0x0153,0x0013,0x0013}, {0x018b,0x018b,0x009b,0x009b}, {0x005b,0x005b,0x0187,0x0187}, - {0x018d,0x00d9,0x0155,0x0015}, {0x0058,0x005c,0x0060,0x0068}, {0x0119,0x0141,0x0191,0x005d}, {0x009d,0x01c9,0x0159,0x00dd}, - {0x01c5,0x0195,0x01cd,0x0064}, {0x019b,0x019b,0x011f,0x011f}, {0x006c,0x0070,0x0074,0x0078}, {0x001b,0x001b,0x01d3,0x01d3}, - {0x0183,0x0183,0x015f,0x015f}, {0x019f,0x019f,0x01db,0x01db}, {0x01d5,0x001d,0x01c1,0x01dd} -}; - -const USHORT HuffmanCodeBook_9[84][4] = -{ - {0x0003,0x0003,0x0004,0x0008}, {0x0007,0x0007,0x0043,0x0043}, {0x0045,0x000c,0x0010,0x002c}, {0x0049,0x0085,0x0009,0x0081}, - {0x0014,0x0018,0x001c,0x0020}, {0x004f,0x004f,0x008b,0x008b}, {0x00c7,0x00c7,0x000d,0x00c1}, {0x00c9,0x008d,0x0105,0x0051}, - {0x0109,0x0145,0x0024,0x0028}, {0x0093,0x0093,0x00cf,0x00cf}, {0x0103,0x0103,0x0013,0x0013}, {0x0030,0x0044,0x0058,0x00a4}, - {0x0034,0x0038,0x003c,0x0040}, {0x0057,0x0057,0x014b,0x014b}, {0x0187,0x0187,0x010f,0x010f}, {0x0097,0x0097,0x005b,0x005b}, - {0x00d3,0x00d3,0x0141,0x0189}, {0x0048,0x004c,0x0050,0x0054}, {0x0015,0x01c5,0x014d,0x0205}, {0x0061,0x0111,0x00d5,0x0099}, - {0x005d,0x0181,0x00a1,0x0209}, {0x018d,0x01c9,0x0151,0x0065}, {0x005c,0x0068,0x007c,0x0090}, {0x0245,0x009d,0x0060,0x0064}, - {0x001b,0x001b,0x0117,0x0117}, {0x00db,0x00db,0x00e3,0x00e3}, {0x006c,0x0070,0x0074,0x0078}, {0x01c3,0x01c3,0x00a7,0x00a7}, - {0x020f,0x020f,0x0193,0x0193}, {0x01cf,0x01cf,0x0203,0x0203}, {0x006b,0x006b,0x011b,0x011b}, {0x0080,0x0084,0x0088,0x008c}, - {0x024b,0x024b,0x0157,0x0157}, {0x0023,0x0023,0x001f,0x001f}, {0x00df,0x00df,0x00ab,0x00ab}, {0x00e7,0x00e7,0x0123,0x0123}, - {0x0094,0x0098,0x009c,0x00a0}, {0x0287,0x0287,0x011f,0x011f}, {0x015b,0x015b,0x0197,0x0197}, {0x0213,0x0213,0x01d3,0x01d3}, - {0x024f,0x024f,0x006f,0x006f}, {0x00a8,0x00bc,0x00d0,0x00f4}, {0x00ac,0x00b0,0x00b4,0x00b8}, {0x0217,0x0217,0x0027,0x0027}, - {0x0163,0x0163,0x00e9,0x0289}, {0x0241,0x00ad,0x0125,0x0199}, {0x0071,0x0251,0x01a1,0x02c5}, {0x00c0,0x00c4,0x00c8,0x00cc}, - {0x0165,0x0129,0x01d5,0x015d}, {0x02c9,0x0305,0x00b1,0x00ed}, {0x028d,0x0255,0x01d9,0x01e1}, {0x012d,0x0281,0x019d,0x00f1}, - {0x00d4,0x00d8,0x00dc,0x00e0}, {0x0029,0x0169,0x0291,0x0219}, {0x0309,0x01a5,0x01e5,0x02d1}, {0x002d,0x0259,0x02cd,0x0295}, - {0x00e4,0x00e8,0x00ec,0x00f0}, {0x0223,0x0223,0x021f,0x021f}, {0x0173,0x0173,0x030f,0x030f}, {0x016f,0x016f,0x01df,0x01df}, - {0x0133,0x0133,0x01af,0x01af}, {0x00f8,0x010c,0x0120,0x0134}, {0x00fc,0x0100,0x0104,0x0108}, {0x01ab,0x01ab,0x0313,0x0313}, - {0x025f,0x025f,0x02d7,0x02d7}, {0x02c3,0x02c3,0x01b3,0x01b3}, {0x029b,0x029b,0x0033,0x0033}, {0x0110,0x0114,0x0118,0x011c}, - {0x01eb,0x01eb,0x0317,0x0317}, {0x029f,0x029f,0x0227,0x0227}, {0x0303,0x0303,0x01ef,0x01ef}, {0x0263,0x0263,0x0267,0x0267}, - {0x0124,0x0128,0x012c,0x0130}, {0x022b,0x022b,0x02df,0x02df}, {0x01f3,0x01f3,0x02db,0x02db}, {0x02e3,0x02e3,0x022f,0x022f}, - {0x031f,0x031f,0x031b,0x031b}, {0x0138,0x013c,0x0140,0x0144}, {0x02a1,0x0269,0x0321,0x02a5}, {0x02e5,0x0325,0x02e9,0x0271}, - {0x02a9,0x026d,0x0231,0x02ad}, {0x02b1,0x02f1,0x0148,0x014c}, {0x032b,0x032b,0x02ef,0x02ef}, {0x032f,0x032f,0x0333,0x0333} -}; - -const USHORT HuffmanCodeBook_10[82][4] = -{ - {0x0004,0x000c,0x0020,0x004c}, {0x0045,0x0085,0x0049,0x0008}, {0x008b,0x008b,0x0007,0x0007}, {0x0010,0x0014,0x0018,0x001c}, - {0x0043,0x0043,0x00c7,0x00c7}, {0x008f,0x008f,0x004f,0x004f}, {0x00cb,0x00cb,0x00cf,0x00cf}, {0x0009,0x0081,0x0109,0x0091}, - {0x0024,0x0028,0x002c,0x0038}, {0x0105,0x0051,0x0001,0x00d1}, {0x010d,0x000d,0x00c1,0x0111}, {0x0149,0x0095,0x0030,0x0034}, - {0x0147,0x0147,0x0057,0x0057}, {0x00d7,0x00d7,0x014f,0x014f}, {0x003c,0x0040,0x0044,0x0048}, {0x0117,0x0117,0x0153,0x0153}, - {0x009b,0x009b,0x018b,0x018b}, {0x00db,0x00db,0x0013,0x0013}, {0x005b,0x005b,0x0103,0x0103}, {0x0050,0x0064,0x0078,0x00c0}, - {0x0054,0x0058,0x005c,0x0060}, {0x0187,0x0187,0x018f,0x018f}, {0x0157,0x0157,0x011b,0x011b}, {0x0193,0x0193,0x0159,0x009d}, - {0x01cd,0x01c9,0x0195,0x00a1}, {0x0068,0x006c,0x0070,0x0074}, {0x00dd,0x0015,0x005d,0x0141}, {0x0061,0x01c5,0x00e1,0x011d}, - {0x01d1,0x0209,0x0199,0x015d}, {0x0205,0x020d,0x0121,0x0211}, {0x007c,0x0084,0x0098,0x00ac}, {0x01d5,0x0161,0x0215,0x0080}, - {0x019f,0x019f,0x01db,0x01db}, {0x0088,0x008c,0x0090,0x0094}, {0x00a7,0x00a7,0x001b,0x001b}, {0x021b,0x021b,0x00e7,0x00e7}, - {0x024f,0x024f,0x0067,0x0067}, {0x024b,0x024b,0x0183,0x0183}, {0x009c,0x00a0,0x00a4,0x00a8}, {0x01a3,0x01a3,0x0127,0x0127}, - {0x0253,0x0253,0x00ab,0x00ab}, {0x0247,0x0247,0x01df,0x01df}, {0x01e3,0x01e3,0x0167,0x0167}, {0x00b0,0x00b4,0x00b8,0x00bc}, - {0x021f,0x021f,0x00eb,0x00eb}, {0x0257,0x0257,0x012b,0x012b}, {0x028b,0x028b,0x006b,0x006b}, {0x028f,0x028f,0x01a7,0x01a7}, - {0x00c4,0x00d8,0x00ec,0x0100}, {0x00c8,0x00cc,0x00d0,0x00d4}, {0x025b,0x025b,0x0023,0x0023}, {0x0293,0x0293,0x001f,0x001f}, - {0x00af,0x00af,0x025d,0x00ed}, {0x01a9,0x0285,0x006d,0x01e5}, {0x00dc,0x00e0,0x00e4,0x00e8}, {0x01c1,0x0221,0x0169,0x02cd}, - {0x0295,0x0261,0x016d,0x0201}, {0x012d,0x02c9,0x029d,0x0299}, {0x01e9,0x02d1,0x02c5,0x00b1}, {0x00f0,0x00f4,0x00f8,0x00fc}, - {0x0225,0x00f1,0x01ad,0x02d5}, {0x0131,0x01ed,0x0171,0x030d}, {0x02d9,0x0025,0x0229,0x0029}, {0x0071,0x0241,0x0311,0x0265}, - {0x0104,0x010c,0x0120,0x0134}, {0x01b1,0x0309,0x02a1,0x0108}, {0x02a7,0x02a7,0x0307,0x0307}, {0x0110,0x0114,0x0118,0x011c}, - {0x022f,0x022f,0x01f3,0x01f3}, {0x02df,0x02df,0x0317,0x0317}, {0x031b,0x031b,0x026b,0x026b}, {0x02e3,0x02e3,0x0233,0x0233}, - {0x0124,0x0128,0x012c,0x0130}, {0x0283,0x0283,0x031f,0x031f}, {0x002f,0x002f,0x02ab,0x02ab}, {0x026f,0x026f,0x02af,0x02af}, - {0x02c3,0x02c3,0x02ef,0x02ef}, {0x0138,0x013c,0x0140,0x0144}, {0x02e7,0x02e7,0x02eb,0x02eb}, {0x0033,0x0033,0x0323,0x0323}, - {0x0271,0x0329,0x0325,0x032d}, {0x02f1,0x0301,0x02b1,0x0331} -}; - -const USHORT HuffmanCodeBook_11[152][4] = -{ - {0x0004,0x0010,0x0038,0x008c}, {0x0001,0x0085,0x0008,0x000c}, {0x0843,0x0843,0x0007,0x0007}, {0x0083,0x0083,0x008b,0x008b}, - {0x0014,0x0018,0x001c,0x0024}, {0x0107,0x0107,0x010b,0x010b}, {0x0185,0x008d,0x010d,0x0009}, {0x0189,0x0101,0x018d,0x0020}, - {0x0093,0x0093,0x0207,0x0207}, {0x0028,0x002c,0x0030,0x0034}, {0x0113,0x0113,0x020b,0x020b}, {0x0193,0x0193,0x020f,0x020f}, - {0x000f,0x000f,0x0183,0x0183}, {0x0097,0x0097,0x0117,0x0117}, {0x003c,0x0050,0x0064,0x0078}, {0x0040,0x0044,0x0048,0x004c}, - {0x028b,0x028b,0x0213,0x0213}, {0x0287,0x0287,0x0197,0x0197}, {0x028f,0x028f,0x0217,0x0217}, {0x0291,0x0119,0x0309,0x0099}, - {0x0054,0x0058,0x005c,0x0060}, {0x0199,0x030d,0x0305,0x0811}, {0x080d,0x02c1,0x01c1,0x0241}, {0x0219,0x0341,0x0011,0x0311}, - {0x0201,0x0809,0x0295,0x0815}, {0x0068,0x006c,0x0070,0x0074}, {0x03c1,0x0141,0x0441,0x0389}, {0x011d,0x038d,0x0299,0x0315}, - {0x0819,0x0541,0x019d,0x009d}, {0x04c1,0x081d,0x0805,0x0385}, {0x007c,0x0080,0x0084,0x0088}, {0x0391,0x05c1,0x021d,0x0641}, - {0x0821,0x00c1,0x0319,0x0825}, {0x0409,0x0395,0x0829,0x06c1}, {0x01a1,0x0121,0x040d,0x0015}, {0x0090,0x00c8,0x011c,0x0170}, - {0x0094,0x0098,0x00a0,0x00b4}, {0x0741,0x082d,0x029d,0x0411}, {0x0399,0x031d,0x0281,0x009c}, {0x0223,0x0223,0x07c3,0x07c3}, - {0x00a4,0x00a8,0x00ac,0x00b0}, {0x0833,0x0833,0x0407,0x0407}, {0x00a3,0x00a3,0x083b,0x083b}, {0x0417,0x0417,0x0837,0x0837}, - {0x048f,0x048f,0x02a3,0x02a3}, {0x00b8,0x00bc,0x00c0,0x00c4}, {0x039f,0x039f,0x048b,0x048b}, {0x0323,0x0323,0x0127,0x0127}, - {0x01a7,0x01a7,0x083f,0x083f}, {0x0493,0x0493,0x041b,0x041b}, {0x00cc,0x00e0,0x00f4,0x0108}, {0x00d0,0x00d4,0x00d8,0x00dc}, - {0x001b,0x001b,0x0227,0x0227}, {0x0497,0x0497,0x03a3,0x03a3}, {0x041f,0x041f,0x0487,0x0487}, {0x01ab,0x01ab,0x0303,0x0303}, - {0x00e4,0x00e8,0x00ec,0x00f0}, {0x012b,0x012b,0x00a7,0x00a7}, {0x02a7,0x02a7,0x0513,0x0513}, {0x050b,0x050b,0x0327,0x0327}, - {0x050f,0x050f,0x049b,0x049b}, {0x00f8,0x00fc,0x0100,0x0104}, {0x022b,0x022b,0x0423,0x0423}, {0x02ab,0x02ab,0x03a7,0x03a7}, - {0x01af,0x01af,0x0507,0x0507}, {0x001f,0x001f,0x032b,0x032b}, {0x010c,0x0110,0x0114,0x0118}, {0x049f,0x049f,0x058f,0x058f}, - {0x0517,0x0517,0x00ab,0x00ab}, {0x0593,0x0593,0x012f,0x012f}, {0x0137,0x0137,0x051b,0x051b}, {0x0120,0x0134,0x0148,0x015c}, - {0x0124,0x0128,0x012c,0x0130}, {0x01b7,0x01b7,0x058b,0x058b}, {0x0043,0x0043,0x0597,0x0597}, {0x02af,0x02af,0x022d,0x0425}, - {0x051d,0x04a1,0x0801,0x0691}, {0x0138,0x013c,0x0140,0x0144}, {0x0381,0x068d,0x032d,0x00b5}, {0x0235,0x01b1,0x0689,0x02b5}, - {0x0521,0x0599,0x0429,0x03a9}, {0x0139,0x0231,0x0585,0x0611}, {0x014c,0x0150,0x0154,0x0158}, {0x00ad,0x060d,0x0685,0x0131}, - {0x059d,0x070d,0x0615,0x0695}, {0x0239,0x0711,0x03ad,0x01b9}, {0x02b1,0x0335,0x0331,0x0021}, {0x0160,0x0164,0x0168,0x016c}, - {0x042d,0x0609,0x04a5,0x02b9}, {0x0699,0x0529,0x013d,0x05a1}, {0x0525,0x0339,0x04a9,0x0715}, {0x04ad,0x00b9,0x0709,0x0619}, - {0x0174,0x0188,0x019c,0x01cc}, {0x0178,0x017c,0x0180,0x0184}, {0x0605,0x0435,0x0401,0x03b5}, {0x061d,0x03b1,0x069d,0x01bd}, - {0x00b1,0x0719,0x0789,0x02bd}, {0x023d,0x0705,0x05a5,0x0791}, {0x018c,0x0190,0x0194,0x0198}, {0x03b9,0x06a1,0x04b5,0x0621}, - {0x0795,0x078d,0x05a9,0x052d}, {0x0431,0x033d,0x03bd,0x0721}, {0x00bd,0x071d,0x0025,0x0481}, {0x01a0,0x01a4,0x01a8,0x01b8}, - {0x06a5,0x0625,0x04b1,0x0439}, {0x06a9,0x04b9,0x0531,0x0799}, {0x079d,0x01ac,0x01b0,0x01b4}, {0x0727,0x0727,0x043f,0x043f}, - {0x05af,0x05af,0x072f,0x072f}, {0x0787,0x0787,0x062b,0x062b}, {0x01bc,0x01c0,0x01c4,0x01c8}, {0x072b,0x072b,0x05b7,0x05b7}, - {0x0537,0x0537,0x06af,0x06af}, {0x062f,0x062f,0x07a3,0x07a3}, {0x05bb,0x05bb,0x0637,0x0637}, {0x01d0,0x01e4,0x01f8,0x020c}, - {0x01d4,0x01d8,0x01dc,0x01e0}, {0x06b3,0x06b3,0x04bf,0x04bf}, {0x053b,0x053b,0x002b,0x002b}, {0x05b3,0x05b3,0x07a7,0x07a7}, - {0x0503,0x0503,0x0633,0x0633}, {0x01e8,0x01ec,0x01f0,0x01f4}, {0x002f,0x002f,0x0733,0x0733}, {0x07ab,0x07ab,0x06b7,0x06b7}, - {0x0683,0x0683,0x063b,0x063b}, {0x053f,0x053f,0x05bf,0x05bf}, {0x01fc,0x0200,0x0204,0x0208}, {0x07af,0x07af,0x06bb,0x06bb}, - {0x0037,0x0037,0x0583,0x0583}, {0x0737,0x0737,0x063f,0x063f}, {0x06bf,0x06bf,0x07b3,0x07b3}, {0x0210,0x0214,0x0218,0x021c}, - {0x003b,0x003b,0x073b,0x073b}, {0x07b7,0x07b7,0x0033,0x0033}, {0x07bb,0x07bb,0x0701,0x0601}, {0x073d,0x003d,0x0781,0x07bd}, - {0x0118,0x0117,0x0100,0x0109}, {0x05a5,0x05a1,0x05b7,0x0513}, {0x08f9,0x08ff,0x0821,0x08ff}, {0x084f,0x08ff,0x08bc,0x08ff}, - {0x0815,0x08ff,0x0837,0x08ff}, {0x080d,0x08ff,0x085f,0x08ff}, {0x084a,0x08ff,0x087d,0x08ff}, {0x08ff,0x08ff,0x08a8,0x08ff}, - {0x0815,0x08ff,0x083f,0x08ff}, {0x0830,0x08ff,0x0894,0x08ff}, {0x08d4,0x08ff,0x0825,0x08ff}, {0x08ef,0x08ff,0x083f,0x08ff}, - {0x0809,0x08ff,0x08fc,0x08ff}, {0x0842,0x08ff,0x08b3,0x08ff}, {0x070d,0x07a9,0x060e,0x06e2}, {0x06c7,0x06d0,0x04b2,0x0407} -}; - - -const USHORT HuffmanCodeBook_SCL[65][4] = -{ - {0x00f3,0x00f3,0x0004,0x0008}, {0x00ef,0x00ef,0x00f5,0x00e9}, {0x00f9,0x000c,0x0010,0x0014}, {0x00e7,0x00e7,0x00ff,0x00ff}, - {0x00e1,0x0101,0x00dd,0x0105}, {0x0018,0x001c,0x0020,0x0028}, {0x010b,0x010b,0x00db,0x00db}, {0x010f,0x010f,0x00d5,0x0111}, - {0x00d1,0x0115,0x00cd,0x0024}, {0x011b,0x011b,0x00cb,0x00cb}, {0x002c,0x0030,0x0034,0x0040}, {0x00c7,0x00c7,0x011f,0x011f}, - {0x0121,0x00c1,0x0125,0x00bd}, {0x0129,0x00b9,0x0038,0x003c}, {0x0133,0x0133,0x012f,0x012f}, {0x0137,0x0137,0x013b,0x013b}, - {0x0044,0x0048,0x004c,0x0058}, {0x00b7,0x00b7,0x00af,0x00af}, {0x00b1,0x013d,0x00a9,0x00a5}, {0x0141,0x00a1,0x0050,0x0054}, - {0x0147,0x0147,0x009f,0x009f}, {0x014b,0x014b,0x009b,0x009b}, {0x005c,0x0060,0x0064,0x0070}, {0x014f,0x014f,0x0095,0x008d}, - {0x0155,0x0085,0x0091,0x0089}, {0x0151,0x0081,0x0068,0x006c}, {0x015f,0x015f,0x0167,0x0167}, {0x007b,0x007b,0x007f,0x007f}, - {0x0074,0x0078,0x0080,0x00b0}, {0x0159,0x0075,0x0069,0x006d}, {0x0071,0x0061,0x0161,0x007c}, {0x0067,0x0067,0x005b,0x005b}, - {0x0084,0x0088,0x008c,0x009c}, {0x005f,0x005f,0x0169,0x0055}, {0x004d,0x000d,0x0005,0x0009}, {0x0001,0x0090,0x0094,0x0098}, - {0x018b,0x018b,0x018f,0x018f}, {0x0193,0x0193,0x0197,0x0197}, {0x019b,0x019b,0x01d7,0x01d7}, {0x00a0,0x00a4,0x00a8,0x00ac}, - {0x0187,0x0187,0x016f,0x016f}, {0x0173,0x0173,0x0177,0x0177}, {0x017b,0x017b,0x017f,0x017f}, {0x0183,0x0183,0x01a3,0x01a3}, - {0x00b4,0x00c8,0x00dc,0x00f0}, {0x00b8,0x00bc,0x00c0,0x00c4}, {0x01bf,0x01bf,0x01c3,0x01c3}, {0x01c7,0x01c7,0x01cb,0x01cb}, - {0x01cf,0x01cf,0x01d3,0x01d3}, {0x01bb,0x01bb,0x01a7,0x01a7}, {0x00cc,0x00d0,0x00d4,0x00d8}, {0x01ab,0x01ab,0x01af,0x01af}, - {0x01b3,0x01b3,0x01b7,0x01b7}, {0x01db,0x01db,0x001b,0x001b}, {0x0023,0x0023,0x0027,0x0027}, {0x00e0,0x00e4,0x00e8,0x00ec}, - {0x002b,0x002b,0x0017,0x0017}, {0x019f,0x019f,0x01e3,0x01e3}, {0x01df,0x01df,0x0013,0x0013}, {0x001f,0x001f,0x003f,0x003f}, - {0x00f4,0x00f8,0x00fc,0x0100}, {0x0043,0x0043,0x004b,0x004b}, {0x0053,0x0053,0x0047,0x0047}, {0x002f,0x002f,0x0033,0x0033}, - {0x003b,0x003b,0x0037,0x0037} -}; - - - -/* .CodeBook = HuffmanCodeBook_x, .Dimension = 4, .numBits = 2, .Offset = 0 */ -const CodeBookDescription AACcodeBookDescriptionTable[13] = { - { NULL, 0, 0, 0 }, - { HuffmanCodeBook_1, 4, 2, 1 }, - { HuffmanCodeBook_2, 4, 2, 1 }, - { HuffmanCodeBook_3, 4, 2, 0 }, - { HuffmanCodeBook_4, 4, 2, 0 }, - { HuffmanCodeBook_5, 2, 4, 4 }, - { HuffmanCodeBook_6, 2, 4, 4 }, - { HuffmanCodeBook_7, 2, 4, 0 }, - { HuffmanCodeBook_8, 2, 4, 0 }, - { HuffmanCodeBook_9, 2, 4, 0 }, - { HuffmanCodeBook_10, 2, 4, 0 }, - { HuffmanCodeBook_11, 2, 5, 0 }, - { HuffmanCodeBook_SCL, 1, 8, 60 } -}; - -const CodeBookDescription AACcodeBookDescriptionSCL = { HuffmanCodeBook_SCL, 1, 8, 60 }; - - - -/* ********************************************************************************************* */ -/* Table: HuffTree41 */ -/* --------------------------------------------------------------------------------------------- */ -/* description: This table contains the decode tree for spectral data (Codebook 1). */ -/* bit 23 and 11 not used */ -/* bit 22 and 10 determine end value */ -/* bit 21-12 and 9-0 (offset to next node) or (index value * 4) */ -/* --------------------------------------------------------------------------------------------- */ -/* input: codeword */ -/* --------------------------------------------------------------------------------------------- */ -/* output: index * 4 */ -/* --------------------------------------------------------------------------------------------- */ -/* HuffTree */ -const UINT aHuffTree41[80] = {0x4a0001,0x026002,0x013003,0x021004,0x01c005,0x00b006,0x010007,0x019008, - 0x00900e,0x00a03a,0x400528,0x00c037,0x00d03b,0x454404,0x00f04c,0x448408, - 0x017011,0x01202e,0x42c40c,0x034014,0x01502c,0x016049,0x410470,0x01804e, - 0x414424,0x03201a,0x02001b,0x520418,0x02f01d,0x02a01e,0x01f04d,0x41c474, - 0x540420,0x022024,0x04a023,0x428510,0x025029,0x430508,0x02703c,0x028047, - 0x50c434,0x438478,0x04802b,0x46443c,0x02d03e,0x4404b0,0x44451c,0x03003f, - 0x03104b,0x52444c,0x033039,0x4f0450,0x035041,0x036046,0x4e8458,0x04f038, - 0x45c53c,0x4604e0,0x4f8468,0x46c4d4,0x04503d,0x4ac47c,0x518480,0x043040, - 0x4844dc,0x042044,0x4884a8,0x4bc48c,0x530490,0x4a4494,0x4984b8,0x49c4c4, - 0x5044b4,0x5004c0,0x4d04c8,0x4f44cc,0x4d8538,0x4ec4e4,0x52c4fc,0x514534}; - -/* ********************************************************************************************* */ -/* Table: HuffTree42 */ -/* --------------------------------------------------------------------------------------------- */ -/* description: This table contains the decode tree for spectral data (Codebook 2). */ -/* bit 23 and 11 not used */ -/* bit 22 and 10 determine end value */ -/* bit 21-12 and 9-0 (offset to next node) or (index value * 4) */ -/* --------------------------------------------------------------------------------------------- */ -/* input: codeword */ -/* --------------------------------------------------------------------------------------------- */ -/* output: index * 4 */ -/* --------------------------------------------------------------------------------------------- */ -const UINT aHuffTree42[80] = {0x026001,0x014002,0x009003,0x010004,0x01d005,0x00600d,0x007018,0x450008, - 0x4e0400,0x02e00a,0x03900b,0x03d00c,0x43c404,0x01b00e,0x00f04f,0x4d8408, - 0x023011,0x01203b,0x01a013,0x41440c,0x015020,0x016040,0x025017,0x500410, - 0x038019,0x540418,0x41c444,0x02d01c,0x420520,0x01e042,0x03701f,0x4244cc, - 0x02a021,0x02204c,0x478428,0x024031,0x42c4dc,0x4304e8,0x027033,0x4a0028, - 0x50c029,0x4344a4,0x02c02b,0x470438,0x4404c8,0x4f8448,0x04902f,0x04b030, - 0x44c484,0x524032,0x4ec454,0x03e034,0x035046,0x4c4036,0x488458,0x4d445c, - 0x460468,0x04e03a,0x51c464,0x03c04a,0x46c514,0x47453c,0x04503f,0x47c4ac, - 0x044041,0x510480,0x04304d,0x4e448c,0x490518,0x49449c,0x048047,0x4c0498, - 0x4b84a8,0x4b0508,0x4fc4b4,0x4bc504,0x5304d0,0x5344f0,0x4f452c,0x528538}; - -/* ********************************************************************************************* */ -/* Table: HuffTree43 */ -/* --------------------------------------------------------------------------------------------- */ -/* description: This table contains the decode tree for spectral data (Codebook 3). */ -/* bit 23 and 11 not used */ -/* bit 22 and 10 determine end value */ -/* bit 21-12 and 9-0 (offset to next node) or (index value * 4) */ -/* --------------------------------------------------------------------------------------------- */ -/* input: codeword */ -/* --------------------------------------------------------------------------------------------- */ -/* output: index * 4 */ -/* --------------------------------------------------------------------------------------------- */ -const UINT aHuffTree43[80] = {0x400001,0x002004,0x00300a,0x46c404,0x00b005,0x00600d,0x034007,0x037008, - 0x494009,0x4d8408,0x42440c,0x00c01b,0x490410,0x00e016,0x00f011,0x010014, - 0x4144fc,0x01201d,0x020013,0x508418,0x4c0015,0x41c440,0x022017,0x018026, - 0x019035,0x03801a,0x420444,0x01c01f,0x430428,0x02101e,0x44842c,0x478434, - 0x4b4438,0x45443c,0x02c023,0x039024,0x02503f,0x48844c,0x030027,0x02e028, - 0x032029,0x02a041,0x4d402b,0x4504f0,0x04302d,0x4584a8,0x02f03b,0x46045c, - 0x03103d,0x464046,0x033044,0x46853c,0x47049c,0x045036,0x4744dc,0x4a047c, - 0x500480,0x4ac03a,0x4b8484,0x03c04e,0x48c524,0x03e040,0x4984e8,0x50c4a4, - 0x4b0530,0x042047,0x4bc04b,0x4e44c4,0x5184c8,0x52c4cc,0x5204d0,0x04d048, - 0x04a049,0x4e004c,0x51c4ec,0x4f4510,0x5284f8,0x50404f,0x514538,0x540534}; - -/* ********************************************************************************************* */ -/* Table: HuffTree44 */ -/* --------------------------------------------------------------------------------------------- */ -/* description: This table contains the decode tree for spectral data (Codebook 4). */ -/* bit 23 and 11 not used */ -/* bit 22 and 10 determine end value */ -/* bit 21-12 and 9-0 (offset to next node) or (index value * 4) */ -/* --------------------------------------------------------------------------------------------- */ -/* input: codeword */ -/* --------------------------------------------------------------------------------------------- */ -/* output: index * 4 */ -/* --------------------------------------------------------------------------------------------- */ -const UINT aHuffTree44[80] = {0x001004,0x020002,0x036003,0x490400,0x005008,0x010006,0x01f007,0x404428, - 0x00e009,0x01100a,0x00b018,0x01600c,0x03700d,0x408015,0x00f03e,0x40c424, - 0x410478,0x022012,0x038013,0x01e014,0x454414,0x448418,0x025017,0x47441c, - 0x030019,0x02601a,0x02d01b,0x01c034,0x01d029,0x4204f0,0x4dc42c,0x470430, - 0x02103c,0x4a0434,0x02302a,0x440024,0x4384a8,0x43c44c,0x02703a,0x02802c, - 0x444524,0x4504e0,0x02b03d,0x458480,0x45c4f4,0x04b02e,0x04f02f,0x460520, - 0x042031,0x048032,0x049033,0x514464,0x03504c,0x540468,0x47c46c,0x4844d8, - 0x039044,0x4884fc,0x03b045,0x48c53c,0x49449c,0x4b8498,0x03f046,0x041040, - 0x4c44a4,0x50c4ac,0x04a043,0x5184b0,0x4e44b4,0x4bc4ec,0x04e047,0x4c04e8, - 0x4c8510,0x4cc52c,0x4d0530,0x5044d4,0x53804d,0x5284f8,0x508500,0x51c534}; - -/* ********************************************************************************************* */ -/* Table: HuffTree21 */ -/* --------------------------------------------------------------------------------------------- */ -/* description: This table contains the decode tree for spectral data (Codebook 5). */ -/* bit 23 and 11 not used */ -/* bit 22 and 10 determine end value */ -/* bit 21-12 and 9-0 (offset to next node) or (index value * 2) */ -/* --------------------------------------------------------------------------------------------- */ -/* input: codeword */ -/* --------------------------------------------------------------------------------------------- */ -/* output: index * 2 */ -/* --------------------------------------------------------------------------------------------- */ -const UINT aHuffTree21[80] = {0x450001,0x044002,0x042003,0x035004,0x026005,0x022006,0x013007,0x010008, - 0x00d009,0x01c00a,0x01f00b,0x01e00c,0x4a0400,0x01b00e,0x03200f,0x47e402, - 0x020011,0x01204d,0x40449c,0x017014,0x015019,0x01603f,0x406458,0x01804f, - 0x448408,0x04901a,0x40a45a,0x48c40c,0x01d031,0x40e48e,0x490410,0x492412, - 0x021030,0x480414,0x033023,0x02402e,0x02503e,0x416482,0x02a027,0x02802c, - 0x029040,0x418468,0x02b04a,0x41a486,0x02d048,0x41c484,0x04e02f,0x41e426, - 0x420434,0x42249e,0x424494,0x03d034,0x428470,0x039036,0x03703b,0x038041, - 0x42a476,0x03a04b,0x42c454,0x03c047,0x42e472,0x430478,0x43246e,0x496436, - 0x488438,0x43a466,0x046043,0x43c464,0x04504c,0x43e462,0x460440,0x44245e, - 0x45c444,0x46a446,0x44a456,0x47444c,0x45244e,0x46c47c,0x48a47a,0x49a498}; - -/* ********************************************************************************************* */ -/* Table: HuffTree22 */ -/* --------------------------------------------------------------------------------------------- */ -/* description: This table contains the decode tree for spectral data (Codebook 6). */ -/* bit 23 and 11 not used */ -/* bit 22 and 10 determine end value */ -/* bit 21-12 and 9-0 (offset to next node) or (index value * 2) */ -/* --------------------------------------------------------------------------------------------- */ -/* input: codeword */ -/* --------------------------------------------------------------------------------------------- */ -/* output: index * 2 */ -/* --------------------------------------------------------------------------------------------- */ -const UINT aHuffTree22[80] = {0x03c001,0x02f002,0x020003,0x01c004,0x00f005,0x00c006,0x016007,0x04d008, - 0x00b009,0x01500a,0x400490,0x40e402,0x00d013,0x00e02a,0x40c404,0x019010, - 0x011041,0x038012,0x40a406,0x014037,0x40849c,0x4a0410,0x04a017,0x458018, - 0x412422,0x02801a,0x01b029,0x480414,0x02401d,0x01e02b,0x48a01f,0x416432, - 0x02d021,0x026022,0x023039,0x418468,0x025043,0x48641a,0x027040,0x41c488, - 0x41e48c,0x42045a,0x47c424,0x04c02c,0x46e426,0x03602e,0x428478,0x030033, - 0x43c031,0x04b032,0x42e42a,0x03403a,0x035048,0x42c442,0x470430,0x494434, - 0x43649a,0x45c438,0x04403b,0x43a454,0x04503d,0x03e03f,0x43e464,0x440460, - 0x484444,0x049042,0x446448,0x44a456,0x46644c,0x047046,0x44e452,0x450462, - 0x47445e,0x46a496,0x49846c,0x472476,0x47a482,0x04e04f,0x47e492,0x48e49e}; - -/* ********************************************************************************************* */ -/* Table: HuffTree23 */ -/* --------------------------------------------------------------------------------------------- */ -/* description: This table contains the decode tree for spectral data (Codebook 7). */ -/* bit 23 and 11 not used */ -/* bit 22 and 10 determine end value */ -/* bit 21-12 and 9-0 (offset to next node) or (index value * 2) */ -/* --------------------------------------------------------------------------------------------- */ -/* input: codeword */ -/* --------------------------------------------------------------------------------------------- */ -/* output: index * 2 */ -/* --------------------------------------------------------------------------------------------- */ -const UINT aHuffTree23[63] = {0x400001,0x002003,0x410402,0x004007,0x412005,0x01c006,0x420404,0x00800b, - 0x01d009,0x00a01f,0x406026,0x00c012,0x00d00f,0x02700e,0x408440,0x010022, - 0x028011,0x45440a,0x013017,0x029014,0x024015,0x01602f,0x43c40c,0x02b018, - 0x019033,0x03201a,0x43e01b,0x47040e,0x422414,0x01e025,0x432416,0x020021, - 0x418442,0x41a452,0x036023,0x41c446,0x46441e,0x424430,0x426434,0x436428, - 0x44442a,0x02e02a,0x45642c,0x03002c,0x02d03b,0x46642e,0x43a438,0x460448, - 0x031037,0x47244a,0x45a44c,0x034039,0x038035,0x47844e,0x462450,0x474458, - 0x46a45c,0x03a03c,0x45e47a,0x476468,0x03d03e,0x47c46c,0x46e47e}; - -/* ********************************************************************************************* */ -/* Table: HuffTree24 */ -/* --------------------------------------------------------------------------------------------- */ -/* description: This table contains the decode tree for spectral data (Codebook 8). */ -/* bit 23 and 11 not used */ -/* bit 22 and 10 determine end value */ -/* bit 21-12 and 9-0 (offset to next node) or (index value * 2) */ -/* --------------------------------------------------------------------------------------------- */ -/* input: codeword */ -/* --------------------------------------------------------------------------------------------- */ -/* output: index * 2 */ -/* --------------------------------------------------------------------------------------------- */ -const UINT aHuffTree24[63] = {0x001006,0x01d002,0x005003,0x424004,0x400420,0x414402,0x00700a,0x008020, - 0x00901f,0x404432,0x00b011,0x00c00e,0x00d032,0x406446,0x02300f,0x033010, - 0x458408,0x025012,0x013016,0x01402f,0x015038,0x46840a,0x028017,0x01801a, - 0x039019,0x40c47a,0x03e01b,0x03b01c,0x40e47e,0x41201e,0x422410,0x416434, - 0x02a021,0x02202b,0x418444,0x02c024,0x41a456,0x02d026,0x027034,0x46241c, - 0x029036,0x41e45c,0x426031,0x428430,0x45242a,0x03702e,0x42c464,0x03003c, - 0x47442e,0x436442,0x438454,0x43a448,0x03503a,0x43c466,0x43e03d,0x44a440, - 0x44c472,0x46044e,0x45a450,0x45e470,0x46a476,0x46c478,0x47c46e}; - -/* ********************************************************************************************* */ -/* Table: HuffTree25 */ -/* --------------------------------------------------------------------------------------------- */ -/* description: This table contains the decode tree for spectral data (Codebook 9). */ -/* bit 23 and 11 not used */ -/* bit 22 and 10 determine end value */ -/* bit 21-12 and 9-0 (offset to next node) or (index value * 2) */ -/* --------------------------------------------------------------------------------------------- */ -/* input: codeword */ -/* --------------------------------------------------------------------------------------------- */ -/* output: index * 2 */ -/* --------------------------------------------------------------------------------------------- */ -const UINT aHuffTree25[168] = {0x400001,0x002003,0x41a402,0x004007,0x41c005,0x035006,0x434404,0x008010, - 0x00900c,0x04a00a,0x42000b,0x44e406,0x03600d,0x03800e,0x05a00f,0x408468, - 0x01101a,0x012016,0x039013,0x070014,0x46e015,0x40a440,0x03b017,0x01804d, - 0x01904f,0x4b840c,0x01b022,0x01c041,0x03f01d,0x01e020,0x01f05b,0x40e4ee, - 0x02107c,0x45c410,0x02302c,0x024028,0x053025,0x026045,0x02707d,0x412522, - 0x047029,0x05e02a,0x02b08a,0x526414,0x05602d,0x02e081,0x02f032,0x06e030, - 0x031080,0x416544,0x079033,0x034091,0x41852c,0x43641e,0x04b037,0x42246a, - 0x43c424,0x04c03a,0x426456,0x03c066,0x03d03e,0x482428,0x45842a,0x040072, - 0x42c4ba,0x050042,0x04305c,0x044074,0x42e4be,0x06a046,0x4dc430,0x075048, - 0x0490a3,0x44a432,0x450438,0x43a452,0x48443e,0x04e068,0x45a442,0x4d4444, - 0x051088,0x052087,0x44648c,0x077054,0x4da055,0x50a448,0x057060,0x06b058, - 0x05906d,0x44c4f6,0x46c454,0x45e474,0x06905d,0x460520,0x05f07e,0x462494, - 0x061063,0x07f062,0x464496,0x06408b,0x08d065,0x542466,0x067071,0x4d2470, - 0x4724ec,0x478476,0x53a47a,0x09b06c,0x47c4ac,0x4f847e,0x06f078,0x510480, - 0x48649e,0x4884a0,0x07307b,0x49c48a,0x4a648e,0x098076,0x4904c0,0x4924ea, - 0x4c8498,0x07a08e,0x51249a,0x4a24d6,0x5064a4,0x4f24a8,0x4aa4de,0x51e4ae, - 0x4b0538,0x082092,0x083085,0x08f084,0x5464b2,0x096086,0x4ce4b4,0x4d04b6, - 0x089090,0x4bc508,0x4c253e,0x08c0a4,0x5284c4,0x4e04c6,0x4ca4fa,0x5144cc, - 0x4f04d8,0x4e24fc,0x09309c,0x094099,0x095097,0x4e4516,0x4e652e,0x4e84fe, - 0x4f450c,0x09a09f,0x500502,0x50450e,0x09d0a0,0x09e0a5,0x518530,0x51a54a, - 0x0a70a1,0x0a20a6,0x51c534,0x53c524,0x54052a,0x548532,0x536550,0x54c54e}; - -/* ********************************************************************************************* */ -/* Table: HuffTree26 */ -/* --------------------------------------------------------------------------------------------- */ -/* description: This table contains the decode tree for spectral data (Codebook 10). */ -/* bit 23 and 11 not used */ -/* bit 22 and 10 determine end value */ -/* bit 21-12 and 9-0 (offset to next node) or (index value * 2) */ -/* --------------------------------------------------------------------------------------------- */ -/* input: codeword */ -/* --------------------------------------------------------------------------------------------- */ -/* output: index * 2 */ -/* --------------------------------------------------------------------------------------------- */ -const UINT aHuffTree26[168] = {0x006001,0x002013,0x00300f,0x00400d,0x03b005,0x40046e,0x037007,0x00800a, - 0x009067,0x402420,0x05600b,0x00c057,0x434404,0x06600e,0x406470,0x03c010, - 0x059011,0x06f012,0x49e408,0x014019,0x03f015,0x016044,0x017042,0x079018, - 0x4b840a,0x01a01f,0x01b047,0x07c01c,0x08701d,0x06901e,0x44640c,0x020027, - 0x04b021,0x02204f,0x023025,0x02406b,0x40e4e0,0x081026,0x528410,0x02802c, - 0x06c029,0x08f02a,0x02b078,0x53a412,0x05202d,0x02e033,0x02f031,0x0300a2, - 0x4144ce,0x0a6032,0x416534,0x09a034,0x09f035,0x0360a7,0x54e418,0x03a038, - 0x436039,0x43841a,0x41c41e,0x42246a,0x05803d,0x03e068,0x424484,0x04005b, - 0x04107a,0x42645a,0x043093,0x4d2428,0x05e045,0x046072,0x42a45e,0x048060, - 0x073049,0x04a098,0x42c4c4,0x07504c,0x09504d,0x04e09c,0x51042e,0x063050, - 0x077051,0x43053c,0x053084,0x065054,0x4e4055,0x4fe432,0x43a454,0x43c46c, - 0x43e486,0x07005a,0x4a0440,0x07105c,0x05d07b,0x45c442,0x05f08a,0x476444, - 0x07f061,0x06206a,0x448506,0x06408e,0x52644a,0x54444c,0x45644e,0x452450, - 0x488458,0x4604ec,0x4624f6,0x50e464,0x08206d,0x0a406e,0x542466,0x4a2468, - 0x48a472,0x474089,0x4d8478,0x097074,0x47a508,0x08d076,0x47c4b6,0x51247e, - 0x4804fc,0x4bc482,0x48c4a4,0x48e4d4,0x07d07e,0x4904da,0x49208b,0x094080, - 0x49450c,0x4964e2,0x09d083,0x52a498,0x085091,0x0a5086,0x4cc49a,0x08808c, - 0x4ee49c,0x4a64ba,0x4a84c0,0x4c24aa,0x4ac4f0,0x4ae4d0,0x4ca4b0,0x0900a1, - 0x4b24ea,0x092099,0x4b4516,0x4d64be,0x4c650a,0x522096,0x4c8524,0x4dc4f2, - 0x4de4f4,0x4e6548,0x09e09b,0x5384e8,0x5204f8,0x4fa53e,0x50051a,0x0a30a0, - 0x502536,0x514504,0x51e518,0x54a51c,0x54052c,0x52e546,0x530532,0x54c550}; - -/* ********************************************************************************************* */ -/* Table: HuffTree27 */ -/* --------------------------------------------------------------------------------------------- */ -/* description: This table contains the decode tree for spectral data (Codebook 11). */ -/* bit 23 and 11 not used */ -/* bit 22 and 10 determine end value */ -/* bit 21-12 and 9-0 (offset to next node) or (index value * 2) */ -/* --------------------------------------------------------------------------------------------- */ -/* input: codeword */ -/* --------------------------------------------------------------------------------------------- */ -/* output: index * 2 */ -/* --------------------------------------------------------------------------------------------- */ -const UINT aHuffTree27[288] = {0x00100d,0x002006,0x003004,0x400424,0x047005,0x402446,0x048007,0x00800a, - 0x00904c,0x44a404,0x07400b,0x00c0bb,0x466406,0x00e014,0x00f054,0x04e010, - 0x051011,0x0a9012,0x0130bc,0x408464,0x01501f,0x01601a,0x017059,0x0af018, - 0x0ca019,0x40a0e4,0x01b05e,0x01c084,0x0bf01d,0x05d01e,0x55a40c,0x020026, - 0x021066,0x043022,0x023062,0x02408d,0x025108,0x40e480,0x027030,0x02802c, - 0x02906b,0x02a0da,0x06502b,0x4105c8,0x0a402d,0x0ec02e,0x0dd02f,0x532412, - 0x06e031,0x032036,0x03303e,0x0fd034,0x0fc035,0x4145b0,0x03703a,0x038117, - 0x10d039,0x5ba416,0x10f03b,0x03c041,0x5fa03d,0x41c418,0x10403f,0x04011d, - 0x41a5f4,0x11c042,0x41e61c,0x087044,0x0f5045,0x0d9046,0x4204a2,0x640422, - 0x04904a,0x426448,0x04b073,0x428468,0x46c04d,0x48a42a,0x04f077,0x076050, - 0x42c4b0,0x0520a7,0x096053,0x42e4a8,0x05507d,0x07a056,0x0d4057,0x0df058, - 0x442430,0x05a081,0x05b09b,0x05c0e2,0x5b8432,0x4fe434,0x05f09e,0x0e6060, - 0x0610d6,0x57c436,0x0cc063,0x112064,0x4384a0,0x43a5ca,0x067089,0x0680b7, - 0x0690a2,0x0a106a,0x43c59c,0x09206c,0x06d0ba,0x60643e,0x0d106f,0x0700ee, - 0x0de071,0x10b072,0x44056c,0x46a444,0x075094,0x48c44c,0x44e490,0x095078, - 0x0ab079,0x4504ce,0x07b097,0x11e07c,0x630452,0x0ac07e,0x07f099,0x080106, - 0x4544b8,0x0820b1,0x0830e5,0x4fc456,0x0b3085,0x08609d,0x45853e,0x0880c2, - 0x5c045a,0x08a08f,0x08b0ce,0x08c0f7,0x58645c,0x11108e,0x45e5c4,0x0c4090, - 0x10a091,0x4604e4,0x0d0093,0x462608,0x48e46e,0x4704b2,0x4d2472,0x0980bd, - 0x4f2474,0x0e309a,0x4764aa,0x0be09c,0x47851a,0x47a4de,0x09f0b5,0x0a00c1, - 0x50047c,0x57847e,0x0a30c3,0x504482,0x0e90a5,0x0a6100,0x4c8484,0x0a811f, - 0x48662a,0x0c70aa,0x488494,0x4924d0,0x0ad0c8,0x0ae0d8,0x496636,0x10e0b0, - 0x4f8498,0x0f30b2,0x49a4dc,0x0f20b4,0x53c49c,0x0b60cb,0x49e57a,0x0b80e0, - 0x0b9109,0x5e44a4,0x5484a6,0x4ac4ae,0x4b44ca,0x4d64b6,0x4ba5da,0x0c60c0, - 0x4bc51e,0x4be556,0x6204c0,0x4c24c4,0x0f80c5,0x5664c6,0x4cc53a,0x4d462c, - 0x0f10c9,0x4d8552,0x4da4fa,0x5be4e0,0x0cd0ff,0x5244e2,0x0cf0e8,0x4e6568, - 0x59a4e8,0x0f90d2,0x1010d3,0x5ac4ea,0x0d50d7,0x4ec634,0x4ee560,0x4f44f0, - 0x4f6638,0x502522,0x0db0dc,0x5065a6,0x508604,0x60050a,0x50c0fb,0x63250e, - 0x1130e1,0x5a4510,0x5125fc,0x516514,0x51863e,0x51c536,0x0e70f4,0x55c520, - 0x602526,0x0eb0ea,0x5cc528,0x5ea52a,0x1140ed,0x60c52c,0x1020ef,0x0f0119, - 0x58e52e,0x530622,0x558534,0x53861e,0x55e540,0x5800f6,0x57e542,0x5445e6, - 0x5465e8,0x0fa115,0x54c54a,0x54e60e,0x5ae550,0x1160fe,0x5f0554,0x564562, - 0x56a58a,0x56e5ee,0x10310c,0x5705d0,0x107105,0x5725d4,0x57463a,0x5765b4, - 0x5825bc,0x5845e2,0x5885de,0x58c592,0x5ce590,0x5945f6,0x63c596,0x11b110, - 0x5d8598,0x5c259e,0x5e05a0,0x5a25c6,0x5a860a,0x5aa5ec,0x5b2610,0x11a118, - 0x6185b6,0x5f25d2,0x5d6616,0x5dc5f8,0x61a5fe,0x612614,0x62e624,0x626628}; - -/* get starting addresses of huffman tables into an array [convert codebook into starting address] */ - /* cb tree */ -const UINT *aHuffTable[MAX_CB] = {aHuffTree41, /* 0 - */ /* use tree 1 as dummy here */ - aHuffTree41, /* 1 1 */ - aHuffTree42, /* 2 2 */ - aHuffTree43, /* 3 3 */ - aHuffTree44, /* 4 4 */ - aHuffTree21, /* 5 5 */ - aHuffTree22, /* 6 6 */ - aHuffTree23, /* 7 7 */ - aHuffTree24, /* 8 8 */ - aHuffTree25, /* 9 9 */ - aHuffTree26, /* 10 10 */ - aHuffTree27, /* 11 11 */ - aHuffTree41, /* 12 - */ /* use tree 1 as dummy here */ - aHuffTree41, /* 13 - */ /* use tree 1 as dummy here */ - aHuffTree41, /* 14 - */ /* use tree 1 as dummy here */ - aHuffTree41, /* 15 - */ /* use tree 1 as dummy here */ - aHuffTree27, /* 16 11 */ - aHuffTree27, /* 17 11 */ - aHuffTree27, /* 18 11 */ - aHuffTree27, /* 19 11 */ - aHuffTree27, /* 20 11 */ - aHuffTree27, /* 21 11 */ - aHuffTree27, /* 22 11 */ - aHuffTree27, /* 23 11 */ - aHuffTree27, /* 24 11 */ - aHuffTree27, /* 25 11 */ - aHuffTree27, /* 26 11 */ - aHuffTree27, /* 27 11 */ - aHuffTree27, /* 28 11 */ - aHuffTree27, /* 29 11 */ - aHuffTree27, /* 30 11 */ - aHuffTree27}; /* 31 11 */ - -/*--------------------------------------------------------------------------------------------- - data-description: - The following tables contain the quantized values. Two or four of the quantized values are - indexed by the result of the decoding in the decoding tree (see tables above). - -------------------------------------------------------------------------------------------- */ - -/* ********************************************************************************************* */ -/* Table: ValTab41 */ -/* --------------------------------------------------------------------------------------------- */ -/* description: This table contains the quantized values for codebooks 1-2. */ -/* --------------------------------------------------------------------------------------------- */ -const SCHAR aValTab41[324]={-1,-1,-1,-1,-1,-1,-1,0,-1,-1,-1,1,-1,-1,0,-1, - -1,-1,0,0,-1,-1,0,1,-1,-1,1,-1,-1,-1,1,0, - -1,-1,1,1,-1,0,-1,-1,-1,0,-1,0,-1,0,-1,1, - -1,0,0,-1,-1,0,0,0,-1,0,0,1,-1,0,1,-1, - -1,0,1,0,-1,0,1,1,-1,1,-1,-1,-1,1,-1,0, - -1,1,-1,1,-1,1,0,-1,-1,1,0,0,-1,1,0,1, - -1,1,1,-1,-1,1,1,0,-1,1,1,1,0,-1,-1,-1, - 0,-1,-1,0,0,-1,-1,1,0,-1,0,-1,0,-1,0,0, - 0,-1,0,1,0,-1,1,-1,0,-1,1,0,0,-1,1,1, - 0,0,-1,-1,0,0,-1,0,0,0,-1,1,0,0,0,-1, - 0,0,0,0,0,0,0,1,0,0,1,-1,0,0,1,0, - 0,0,1,1,0,1,-1,-1,0,1,-1,0,0,1,-1,1, - 0,1,0,-1,0,1,0,0,0,1,0,1,0,1,1,-1, - 0,1,1,0,0,1,1,1,1,-1,-1,-1,1,-1,-1,0, - 1,-1,-1,1,1,-1,0,-1,1,-1,0,0,1,-1,0,1, - 1,-1,1,-1,1,-1,1,0,1,-1,1,1,1,0,-1,-1, - 1,0,-1,0,1,0,-1,1,1,0,0,-1,1,0,0,0, - 1,0,0,1,1,0,1,-1,1,0,1,0,1,0,1,1, - 1,1,-1,-1,1,1,-1,0,1,1,-1,1,1,1,0,-1, - 1,1,0,0,1,1,0,1,1,1,1,-1,1,1,1,0, - 1,1,1,1}; - -/* ********************************************************************************************* */ -/* Table: ValTab42 */ -/* --------------------------------------------------------------------------------------------- */ -/* description: This table contains the quantized values for codebooks 3-4. */ -/* --------------------------------------------------------------------------------------------- */ -const SCHAR aValTab42[324]={0,0,0,0,0,0,0,1,0,0,0,2,0,0,1,0, - 0,0,1,1,0,0,1,2,0,0,2,0,0,0,2,1, - 0,0,2,2,0,1,0,0,0,1,0,1,0,1,0,2, - 0,1,1,0,0,1,1,1,0,1,1,2,0,1,2,0, - 0,1,2,1,0,1,2,2,0,2,0,0,0,2,0,1, - 0,2,0,2,0,2,1,0,0,2,1,1,0,2,1,2, - 0,2,2,0,0,2,2,1,0,2,2,2,1,0,0,0, - 1,0,0,1,1,0,0,2,1,0,1,0,1,0,1,1, - 1,0,1,2,1,0,2,0,1,0,2,1,1,0,2,2, - 1,1,0,0,1,1,0,1,1,1,0,2,1,1,1,0, - 1,1,1,1,1,1,1,2,1,1,2,0,1,1,2,1, - 1,1,2,2,1,2,0,0,1,2,0,1,1,2,0,2, - 1,2,1,0,1,2,1,1,1,2,1,2,1,2,2,0, - 1,2,2,1,1,2,2,2,2,0,0,0,2,0,0,1, - 2,0,0,2,2,0,1,0,2,0,1,1,2,0,1,2, - 2,0,2,0,2,0,2,1,2,0,2,2,2,1,0,0, - 2,1,0,1,2,1,0,2,2,1,1,0,2,1,1,1, - 2,1,1,2,2,1,2,0,2,1,2,1,2,1,2,2, - 2,2,0,0,2,2,0,1,2,2,0,2,2,2,1,0, - 2,2,1,1,2,2,1,2,2,2,2,0,2,2,2,1, - 2,2,2,2}; - -/* ********************************************************************************************* */ -/* Table: ValTab21 */ -/* --------------------------------------------------------------------------------------------- */ -/* description: This table contains the quantized values for codebooks 5-6. */ -/* --------------------------------------------------------------------------------------------- */ -const SCHAR aValTab21[162]={-4,-4,-4,-3,-4,-2,-4,-1,-4,0,-4,1,-4,2,-4,3, - -4,4,-3,-4,-3,-3,-3,-2,-3,-1,-3,0,-3,1,-3,2, - -3,3,-3,4,-2,-4,-2,-3,-2,-2,-2,-1,-2,0,-2,1, - -2,2,-2,3,-2,4,-1,-4,-1,-3,-1,-2,-1,-1,-1,0, - -1,1,-1,2,-1,3,-1,4,0,-4,0,-3,0,-2,0,-1, - 0,0,0,1,0,2,0,3,0,4,1,-4,1,-3,1,-2, - 1,-1,1,0,1,1,1,2,1,3,1,4,2,-4,2,-3, - 2,-2,2,-1,2,0,2,1,2,2,2,3,2,4,3,-4, - 3,-3,3,-2,3,-1,3,0,3,1,3,2,3,3,3,4, - 4,-4,4,-3,4,-2,4,-1,4,0,4,1,4,2,4,3, - 4,4}; - -/* ********************************************************************************************* */ -/* Table: ValTab22 */ -/* --------------------------------------------------------------------------------------------- */ -/* description: This table contains the quantized values for codebooks 7-8. */ -/* --------------------------------------------------------------------------------------------- */ -const SCHAR aValTab22[128]={0,0,0,1,0,2,0,3,0,4,0,5,0,6,0,7, - 1,0,1,1,1,2,1,3,1,4,1,5,1,6,1,7, - 2,0,2,1,2,2,2,3,2,4,2,5,2,6,2,7, - 3,0,3,1,3,2,3,3,3,4,3,5,3,6,3,7, - 4,0,4,1,4,2,4,3,4,4,4,5,4,6,4,7, - 5,0,5,1,5,2,5,3,5,4,5,5,5,6,5,7, - 6,0,6,1,6,2,6,3,6,4,6,5,6,6,6,7, - 7,0,7,1,7,2,7,3,7,4,7,5,7,6,7,7}; - -/* ********************************************************************************************* */ -/* Table: ValTab23 */ -/* --------------------------------------------------------------------------------------------- */ -/* description: This table contains the quantized values for codebooks 9-10. */ -/* --------------------------------------------------------------------------------------------- */ -const SCHAR aValTab23[338]={0,0,0,1,0,2,0,3,0,4,0,5,0,6,0,7, - 0,8,0,9,0,10,0,11,0,12,1,0,1,1,1,2, - 1,3,1,4,1,5,1,6,1,7,1,8,1,9,1,10, - 1,11,1,12,2,0,2,1,2,2,2,3,2,4,2,5, - 2,6,2,7,2,8,2,9,2,10,2,11,2,12,3,0, - 3,1,3,2,3,3,3,4,3,5,3,6,3,7,3,8, - 3,9,3,10,3,11,3,12,4,0,4,1,4,2,4,3, - 4,4,4,5,4,6,4,7,4,8,4,9,4,10,4,11, - 4,12,5,0,5,1,5,2,5,3,5,4,5,5,5,6, - 5,7,5,8,5,9,5,10,5,11,5,12,6,0,6,1, - 6,2,6,3,6,4,6,5,6,6,6,7,6,8,6,9, - 6,10,6,11,6,12,7,0,7,1,7,2,7,3,7,4, - 7,5,7,6,7,7,7,8,7,9,7,10,7,11,7,12, - 8,0,8,1,8,2,8,3,8,4,8,5,8,6,8,7, - 8,8,8,9,8,10,8,11,8,12,9,0,9,1,9,2, - 9,3,9,4,9,5,9,6,9,7,9,8,9,9,9,10, - 9,11,9,12,10,0,10,1,10,2,10,3,10,4,10,5, - 10,6,10,7,10,8,10,9,10,10,10,11,10,12,11,0, - 11,1,11,2,11,3,11,4,11,5,11,6,11,7,11,8, - 11,9,11,10,11,11,11,12,12,0,12,1,12,2,12,3, - 12,4,12,5,12,6,12,7,12,8,12,9,12,10,12,11, - 12,12}; - -/* ********************************************************************************************* */ -/* Table: ValTab24 */ -/* --------------------------------------------------------------------------------------------- */ -/* description: This table contains the quantized values for codebooks 11. */ -/* --------------------------------------------------------------------------------------------- */ -const SCHAR aValTab24[578]={0,0,0,1,0,2,0,3,0,4,0,5,0,6,0,7, - 0,8,0,9,0,10,0,11,0,12,0,13,0,14,0,15, - 0,16,1,0,1,1,1,2,1,3,1,4,1,5,1,6, - 1,7,1,8,1,9,1,10,1,11,1,12,1,13,1,14, - 1,15,1,16,2,0,2,1,2,2,2,3,2,4,2,5, - 2,6,2,7,2,8,2,9,2,10,2,11,2,12,2,13, - 2,14,2,15,2,16,3,0,3,1,3,2,3,3,3,4, - 3,5,3,6,3,7,3,8,3,9,3,10,3,11,3,12, - 3,13,3,14,3,15,3,16,4,0,4,1,4,2,4,3, - 4,4,4,5,4,6,4,7,4,8,4,9,4,10,4,11, - 4,12,4,13,4,14,4,15,4,16,5,0,5,1,5,2, - 5,3,5,4,5,5,5,6,5,7,5,8,5,9,5,10, - 5,11,5,12,5,13,5,14,5,15,5,16,6,0,6,1, - 6,2,6,3,6,4,6,5,6,6,6,7,6,8,6,9, - 6,10,6,11,6,12,6,13,6,14,6,15,6,16,7,0, - 7,1,7,2,7,3,7,4,7,5,7,6,7,7,7,8, - 7,9,7,10,7,11,7,12,7,13,7,14,7,15,7,16, - 8,0,8,1,8,2,8,3,8,4,8,5,8,6,8,7, - 8,8,8,9,8,10,8,11,8,12,8,13,8,14,8,15, - 8,16,9,0,9,1,9,2,9,3,9,4,9,5,9,6, - 9,7,9,8,9,9,9,10,9,11,9,12,9,13,9,14, - 9,15,9,16,10,0,10,1,10,2,10,3,10,4,10,5, - 10,6,10,7,10,8,10,9,10,10,10,11,10,12,10,13, - 10,14,10,15,10,16,11,0,11,1,11,2,11,3,11,4, - 11,5,11,6,11,7,11,8,11,9,11,10,11,11,11,12, - 11,13,11,14,11,15,11,16,12,0,12,1,12,2,12,3, - 12,4,12,5,12,6,12,7,12,8,12,9,12,10,12,11, - 12,12,12,13,12,14,12,15,12,16,13,0,13,1,13,2, - 13,3,13,4,13,5,13,6,13,7,13,8,13,9,13,10, - 13,11,13,12,13,13,13,14,13,15,13,16,14,0,14,1, - 14,2,14,3,14,4,14,5,14,6,14,7,14,8,14,9, - 14,10,14,11,14,12,14,13,14,14,14,15,14,16,15,0, - 15,1,15,2,15,3,15,4,15,5,15,6,15,7,15,8, - 15,9,15,10,15,11,15,12,15,13,15,14,15,15,15,16, - 16,0,16,1,16,2,16,3,16,4,16,5,16,6,16,7, - 16,8,16,9,16,10,16,11,16,12,16,13,16,14,16,15, - 16,16}; - - /* cb quant. val table */ -const SCHAR *aQuantTable[] = {aValTab41, /* 0 - */ /* use quant. val talble 1 as dummy here */ - aValTab41, /* 1 1 */ - aValTab41, /* 2 1 */ - aValTab42, /* 3 2 */ - aValTab42, /* 4 2 */ - aValTab21, /* 5 3 */ - aValTab21, /* 6 3 */ - aValTab22, /* 7 4 */ - aValTab22, /* 8 4 */ - aValTab23, /* 9 5 */ - aValTab23, /* 10 5 */ - aValTab24, /* 11 6 */ - aValTab41, /* 12 - */ /* use quant. val talble 1 as dummy here */ - aValTab41, /* 13 - */ /* use quant. val talble 1 as dummy here */ - aValTab41, /* 14 - */ /* use quant. val talble 1 as dummy here */ - aValTab41, /* 15 - */ /* use quant. val talble 1 as dummy here */ - aValTab24, /* 16 6 */ - aValTab24, /* 17 6 */ - aValTab24, /* 18 6 */ - aValTab24, /* 19 6 */ - aValTab24, /* 20 6 */ - aValTab24, /* 21 6 */ - aValTab24, /* 22 6 */ - aValTab24, /* 23 6 */ - aValTab24, /* 24 6 */ - aValTab24, /* 25 6 */ - aValTab24, /* 26 6 */ - aValTab24, /* 27 6 */ - aValTab24, /* 28 6 */ - aValTab24, /* 29 6 */ - aValTab24, /* 30 6 */ - aValTab24}; /* 31 6 */ - -/* arrays for HCR_TABLE_INFO structures */ -/* maximum length of codeword in each codebook */ -/* codebook: 0,1, 2,3, 4, 5, 6, 7, 8, 9, 10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31 */ -const UCHAR aMaxCwLen[MAX_CB]={0,11,9,20,16,13,11,14,12,17,14,49,0, 0, 0, 0, 14,17,21,21,25,25,29,29,29,29,33,33,33,37,37,41}; - -/* 11 13 15 17 19 21 23 25 27 39 31 */ -/* CB: 0 1 2 3 4 5 6 7 8 9 10 12 14 16 18 20 22 24 26 28 30 */ -const UCHAR aDimCb[MAX_CB] = {2,4,4,4,4,2,2,2,2,2,2,2,1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2}; /* codebook dimension - zero cb got a dimension of 2 */ - -/* 11 13 15 17 19 21 23 25 27 39 31 */ -/* CB: 0 1 2 3 4 5 6 7 8 9 10 12 14 16 18 20 22 24 26 28 30 */ -const UCHAR aDimCbShift[MAX_CB]={1,2,2,2,2,1,1,1,1,1,1,1,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}; /* codebook dimension */ - -/* 1 -> decode sign bits */ -/* 0 -> decode no sign bits 11 13 15 17 19 21 23 25 27 39 31 */ -/* CB: 0 1 2 3 4 5 6 7 8 9 10 12 14 16 18 20 22 24 26 28 30 */ -const UCHAR aSignCb[MAX_CB]={0,0,0,1,1,0,0,1,1,1,1,1,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}; - -/* arrays for HCR_CB_PAIRS structures */ -const UCHAR aMinOfCbPair[MAX_CB_PAIRS]={0,1,3,5,7, 9,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,11}; -const UCHAR aMaxOfCbPair[MAX_CB_PAIRS]={0,2,4,6,8,10,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,11}; - -/* priorities of codebooks */ -const UCHAR aCbPriority[MAX_CB]={0,1,1,2,2,3,3,4,4,5,5,22,0,0,0,0,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21}; - -const SCHAR aCodebook2StartInt[] = {STOP_THIS_STATE , /* cb 0 */ - BODY_ONLY , /* cb 1 */ - BODY_ONLY , /* cb 2 */ - BODY_SIGN__BODY , /* cb 3 */ - BODY_SIGN__BODY , /* cb 4 */ - BODY_ONLY , /* cb 5 */ - BODY_ONLY , /* cb 6 */ - BODY_SIGN__BODY , /* cb 7 */ - BODY_SIGN__BODY , /* cb 8 */ - BODY_SIGN__BODY , /* cb 9 */ - BODY_SIGN__BODY , /* cb 10 */ - BODY_SIGN_ESC__BODY, /* cb 11 */ - STOP_THIS_STATE , /* cb 12 */ - STOP_THIS_STATE , /* cb 13 */ - STOP_THIS_STATE , /* cb 14 */ - STOP_THIS_STATE , /* cb 15 */ - BODY_SIGN_ESC__BODY, /* cb 16 */ - BODY_SIGN_ESC__BODY, /* cb 17 */ - BODY_SIGN_ESC__BODY, /* cb 18 */ - BODY_SIGN_ESC__BODY, /* cb 19 */ - BODY_SIGN_ESC__BODY, /* cb 20 */ - BODY_SIGN_ESC__BODY, /* cb 21 */ - BODY_SIGN_ESC__BODY, /* cb 22 */ - BODY_SIGN_ESC__BODY, /* cb 23 */ - BODY_SIGN_ESC__BODY, /* cb 24 */ - BODY_SIGN_ESC__BODY, /* cb 25 */ - BODY_SIGN_ESC__BODY, /* cb 26 */ - BODY_SIGN_ESC__BODY, /* cb 27 */ - BODY_SIGN_ESC__BODY, /* cb 28 */ - BODY_SIGN_ESC__BODY, /* cb 29 */ - BODY_SIGN_ESC__BODY, /* cb 30 */ - BODY_SIGN_ESC__BODY}; /* cb 31 */ - -const STATEFUNC aStateConstant2State[] = {NULL , /* 0 = STOP_THIS_STATE */ - Hcr_State_BODY_ONLY , /* 1 = BODY_ONLY */ - Hcr_State_BODY_SIGN__BODY , /* 2 = BODY_SIGN__BODY */ - Hcr_State_BODY_SIGN__SIGN , /* 3 = BODY_SIGN__SIGN */ - Hcr_State_BODY_SIGN_ESC__BODY , /* 4 = BODY_SIGN_ESC__BODY */ - Hcr_State_BODY_SIGN_ESC__SIGN , /* 5 = BODY_SIGN_ESC__SIGN */ - Hcr_State_BODY_SIGN_ESC__ESC_PREFIX, /* 6 = BODY_SIGN_ESC__ESC_PREFIX */ - Hcr_State_BODY_SIGN_ESC__ESC_WORD }; /* 7 = BODY_SIGN_ESC__ESC_WORD */ - -/* CB: 0 1 2 3 4 5 6 7 8 9 10 12 14 16 18 20 22 24 26 28 30 */ -const USHORT aLargestAbsoluteValue[MAX_CB]={0,1,1,2,2,4,4,7,7,12,12,8191, 0, 0, 0, 0,15,31,47,63,95,127,159,191,223,255,319,383,511,767,1023,2047}; /* lav */ -/* CB: 11 13 15 17 19 21 23 25 27 39 31 */ - - -/* ------------------------------------------------------------------------------------------ - description: The table 'HuffTreeRvlcEscape' contains the decode tree for the rvlc - escape sequences. - bit 23 and 11 not used - bit 22 and 10 determine end value --> if set codeword is decoded - bit 21-12 and 9-0 (offset to next node) or (index value) - The escape sequence is the index value. - - input: codeword - output: index ------------------------------------------------------------------------------------------- */ -const UINT aHuffTreeRvlcEscape[53] = { 0x002001,0x400003,0x401004,0x402005,0x403007,0x404006,0x00a405,0x009008, - 0x00b406,0x00c407,0x00d408,0x00e409,0x40b40a,0x40c00f,0x40d010,0x40e011, - 0x40f012,0x410013,0x411014,0x412015,0x016413,0x414415,0x017416,0x417018, - 0x419019,0x01a418,0x01b41a,0x01c023,0x03201d,0x01e020,0x43501f,0x41b41c, - 0x021022,0x41d41e,0x41f420,0x02402b,0x025028,0x026027,0x421422,0x423424, - 0x02902a,0x425426,0x427428,0x02c02f,0x02d02e,0x42942a,0x42b42c,0x030031, - 0x42d42e,0x42f430,0x033034,0x431432,0x433434 }; - -/* ------------------------------------------------------------------------------------------ - description: The table 'HuffTreeRvlc' contains the huffman decoding tree for the RVLC - scale factors. The table contains 15 allowed, symmetric codewords and 8 - forbidden codewords, which are used for error detection. - - usage of bits: bit 23 and 11 not used - bit 22 and 10 determine end value --> if set codeword is decoded - bit 21-12 and 9-0 (offset to next node within the table) or (index+7). - The decoded (index+7) is in the range from 0,1,..,22. If the (index+7) - is in the range 15,16,..,22, then a forbidden codeword is decoded. - - input: A single bit from a RVLC scalefactor codeword - output: [if codeword is not completely decoded:] offset to next node within table or - [if codeword is decoded:] A dpcm value i.e. (index+7) in range from 0,1,..,22. - The differential scalefactor (DPCM value) named 'index' is calculated by - subtracting 7 from the decoded value (index+7). ------------------------------------------------------------------------------------------- */ -const UINT aHuffTreeRvlCodewds[22] = { 0x407001,0x002009,0x003406,0x004405,0x005404,0x006403,0x007400,0x008402, - 0x411401,0x00a408,0x00c00b,0x00e409,0x01000d,0x40f40a,0x41400f,0x01340b, - 0x011015,0x410012,0x41240c,0x416014,0x41540d,0x41340e }; - - - -const FIXP_WTB LowDelaySynthesis512[1536] = { -/* part 0 */ -WTC(0xdac984c0), WTC(0xdb100080), WTC(0xdb56cd00), WTC(0xdb9dec40), WTC(0xdbe55fc0), WTC(0xdc2d2880), WTC(0xdc754780), WTC(0xdcbdbd80), -WTC(0xdd068a80), WTC(0xdd4fae80), WTC(0xdd992940), WTC(0xdde2f9c0), WTC(0xde2d1fc0), WTC(0xde779a80), WTC(0xdec26a00), WTC(0xdf0d8e00), -WTC(0xdf590680), WTC(0xdfa4d540), WTC(0xdff0fc80), WTC(0xe03d7e20), WTC(0xe08a5900), WTC(0xe0d78a20), WTC(0xe1250cc0), WTC(0xe172dcc0), -WTC(0xe1c0f7a0), WTC(0xe20f59a0), WTC(0xe25dfea0), WTC(0xe2ace400), WTC(0xe2fc0be0), WTC(0xe34b7bc0), WTC(0xe39b3c80), WTC(0xe3eb5260), -WTC(0xe43bbac0), WTC(0xe48c7160), WTC(0xe4dd7140), WTC(0xe52eb600), WTC(0xe5803c00), WTC(0xe5d1fda0), WTC(0xe623f360), WTC(0xe6761700), -WTC(0xe6c86400), WTC(0xe71ad500), WTC(0xe76d63e0), WTC(0xe7c00ba0), WTC(0xe812c8e0), WTC(0xe86598e0), WTC(0xe8b878e0), WTC(0xe90b68a0), -WTC(0xe95e6c40), WTC(0xe9b18ae0), WTC(0xea04ce80), WTC(0xea583ba0), WTC(0xeaabcda0), WTC(0xeaff7ee0), WTC(0xeb5348e0), WTC(0xeba722c0), -WTC(0xebfb0060), WTC(0xec4ed240), WTC(0xeca28540), WTC(0xecf60c20), WTC(0xed496120), WTC(0xed9c7e80), WTC(0xedef5e40), WTC(0xee41fc00), -WTC(0xee945600), WTC(0xeee66ac0), WTC(0xef3839a0), WTC(0xef89c0e0), WTC(0xefdafda0), WTC(0xf02bed60), WTC(0xf07c8e80), WTC(0xf0cce000), -WTC(0xf11ce220), WTC(0xf16c9620), WTC(0xf1bbfe30), WTC(0xf20b19e0), WTC(0xf259e5a0), WTC(0xf2a85dc0), WTC(0xf2f67ed0), WTC(0xf34445b0), -WTC(0xf391aed0), WTC(0xf3deb590), WTC(0xf42b53e0), WTC(0xf4778140), WTC(0xf4c33190), WTC(0xf50e5660), WTC(0xf558df30), WTC(0xf5a2be50), -WTC(0xf5ebea10), WTC(0xf6345780), WTC(0xf67bfab0), WTC(0xf6c2cee0), WTC(0xf708d7b0), WTC(0xf74e19c0), WTC(0xf7929a70), WTC(0xf7d66630), -WTC(0xf8199268), WTC(0xf85c3860), WTC(0xf89e7480), WTC(0xf8e058c0), WTC(0xf921ec08), WTC(0xf9633800), WTC(0xf9a44980), WTC(0xf9e53158), -WTC(0xfa260158), WTC(0xfa66ca18), WTC(0xfaa79ac0), WTC(0xfae87920), WTC(0xfb295fa0), WTC(0xfb6a42b8), WTC(0xfbab1240), WTC(0xfbebd1c0), -WTC(0xfc2c9c24), WTC(0xfc6d8d90), WTC(0xfcaec240), WTC(0xfcf05684), WTC(0xfd326a98), WTC(0xfd75254c), WTC(0xfdb8afd4), WTC(0xfdfccdfc), -WTC(0xfe40d694), WTC(0xfe84161c), WTC(0xfec5cf5a), WTC(0xff04e7fc), WTC(0xff3fdfe3), WTC(0xff751ddf), WTC(0xffa2fb0f), WTC(0xffc87c42), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0xbffb6081), WTC(0xbff22f81), WTC(0xbfe8fc01), WTC(0xbfdfc781), WTC(0xbfd69101), WTC(0xbfcd5a01), WTC(0xbfc42201), WTC(0xbfbae981), -WTC(0xbfb1b101), WTC(0xbfa87901), WTC(0xbf9f4181), WTC(0xbf960b01), WTC(0xbf8cd481), WTC(0xbf839d81), WTC(0xbf7a6681), WTC(0xbf712f01), -WTC(0xbf67f801), WTC(0xbf5ec101), WTC(0xbf558b01), WTC(0xbf4c5681), WTC(0xbf432281), WTC(0xbf39ee81), WTC(0xbf30bb01), WTC(0xbf278801), -WTC(0xbf1e5501), WTC(0xbf152381), WTC(0xbf0bf381), WTC(0xbf02c581), WTC(0xbef99901), WTC(0xbef06d01), WTC(0xbee74281), WTC(0xbede1901), -WTC(0xbed4f081), WTC(0xbecbca81), WTC(0xbec2a781), WTC(0xbeb98681), WTC(0xbeb06881), WTC(0xbea74c81), WTC(0xbe9e3281), WTC(0xbe951a81), -WTC(0xbe8c0501), WTC(0xbe82f301), WTC(0xbe79e481), WTC(0xbe70da01), WTC(0xbe67d381), WTC(0xbe5ed081), WTC(0xbe55d001), WTC(0xbe4cd381), -WTC(0xbe43da81), WTC(0xbe3ae601), WTC(0xbe31f701), WTC(0xbe290d01), WTC(0xbe202801), WTC(0xbe174781), WTC(0xbe0e6c01), WTC(0xbe059481), -WTC(0xbdfcc301), WTC(0xbdf3f701), WTC(0xbdeb3101), WTC(0xbde27201), WTC(0xbdd9b981), WTC(0xbdd10681), WTC(0xbdc85981), WTC(0xbdbfb281), -WTC(0xbdb71201), WTC(0xbdae7881), WTC(0xbda5e601), WTC(0xbd9d5b81), WTC(0xbd94d801), WTC(0xbd8c5c01), WTC(0xbd83e681), WTC(0xbd7b7781), -WTC(0xbd731081), WTC(0xbd6ab101), WTC(0xbd625981), WTC(0xbd5a0b01), WTC(0xbd51c481), WTC(0xbd498601), WTC(0xbd414f01), WTC(0xbd391f81), -WTC(0xbd30f881), WTC(0xbd28d981), WTC(0xbd20c401), WTC(0xbd18b781), WTC(0xbd10b381), WTC(0xbd08b781), WTC(0xbd00c381), WTC(0xbcf8d781), -WTC(0xbcf0f381), WTC(0xbce91801), WTC(0xbce14601), WTC(0xbcd97c81), WTC(0xbcd1bb81), WTC(0xbcca0301), WTC(0xbcc25181), WTC(0xbcbaa801), -WTC(0xbcb30601), WTC(0xbcab6c01), WTC(0xbca3db01), WTC(0xbc9c5281), WTC(0xbc94d201), WTC(0xbc8d5901), WTC(0xbc85e801), WTC(0xbc7e7e01), -WTC(0xbc771c01), WTC(0xbc6fc101), WTC(0xbc686e01), WTC(0xbc612301), WTC(0xbc59df81), WTC(0xbc52a381), WTC(0xbc4b6e81), WTC(0xbc444081), -WTC(0xbc3d1801), WTC(0xbc35f501), WTC(0xbc2ed681), WTC(0xbc27bd81), WTC(0xbc20ae01), WTC(0xbc19ab01), WTC(0xbc12b801), WTC(0xbc0bcf81), -WTC(0xbc04e381), WTC(0xbbfde481), WTC(0xbbf6c601), WTC(0xbbef9b81), WTC(0xbbe89901), WTC(0xbbe1f401), WTC(0xbbdbe201), WTC(0xbbd68c81), -WTC(0xbbd21281), WTC(0xbbce9181), WTC(0xbbcc2681), WTC(0xbbcaca01), WTC(0xbbca5081), WTC(0xbbca8d01), WTC(0xbbcb5301), WTC(0xbbcc8201), -WTC(0xbbce0601), WTC(0xbbcfca81), WTC(0xbbd1bd81), WTC(0xbbd3e101), WTC(0xbbd64d01), WTC(0xbbd91b81), WTC(0xbbdc6481), WTC(0xbbe03801), -WTC(0xbbe49d01), WTC(0xbbe99981), WTC(0xbbef3301), WTC(0xbbf56181), WTC(0xbbfc0f81), WTC(0xbc032601), WTC(0xbc0a8f01), WTC(0xbc123b81), -WTC(0xbc1a2401), WTC(0xbc224181), WTC(0xbc2a8c81), WTC(0xbc330781), WTC(0xbc3bbc01), WTC(0xbc44b481), WTC(0xbc4dfb81), WTC(0xbc57a301), -WTC(0xbc61c401), WTC(0xbc6c7781), WTC(0xbc77d601), WTC(0xbc83f201), WTC(0xbc90d481), WTC(0xbc9e8801), WTC(0xbcad1501), WTC(0xbcbc7e01), -WTC(0xbcccbd01), WTC(0xbcddcc81), WTC(0xbcefa601), WTC(0xbd023f01), WTC(0xbd158801), WTC(0xbd297181), WTC(0xbd3deb81), WTC(0xbd52eb01), -WTC(0xbd686681), WTC(0xbd7e5581), WTC(0xbd94b001), WTC(0xbdab7181), WTC(0xbdc29a81), WTC(0xbdda2a01), WTC(0xbdf22181), WTC(0xbe0a8581), -WTC(0xbe236001), WTC(0xbe3cbc01), WTC(0xbe56a381), WTC(0xbe712001), WTC(0xbe8c3781), WTC(0xbea7f301), WTC(0xbec45881), WTC(0xbee17201), -WTC(0xbeff4801), WTC(0xbf1de601), WTC(0xbf3d5501), WTC(0xbf5d9a81), WTC(0xbf7eb581), WTC(0xbfa0a581), WTC(0xbfc36a01), WTC(0xbfe6ed01), -WTC(0xc00b04c0), WTC(0xc02f86c0), WTC(0xc0544940), WTC(0xc0792ec0), WTC(0xc09e2640), WTC(0xc0c31f00), WTC(0xc0e80a00), WTC(0xc10cf480), -WTC(0xc1320940), WTC(0xc15773c0), WTC(0xc17d5f00), WTC(0xc1a3e340), WTC(0xc1cb05c0), WTC(0xc1f2cbc0), WTC(0xc21b3940), WTC(0xc2444b00), -WTC(0xc26df5c0), WTC(0xc2982d80), WTC(0xc2c2e640), WTC(0xc2ee0a00), WTC(0xc3197940), WTC(0xc34513c0), WTC(0xc370b9c0), WTC(0xc39c4f00), -WTC(0xc3c7bc00), WTC(0xc3f2e940), WTC(0xc41dc140), WTC(0xc44856c0), WTC(0xc472e640), WTC(0xc49dad80), WTC(0xc4c8e880), WTC(0xc4f4acc0), -WTC(0xc520e840), WTC(0xc54d8780), WTC(0xc57a76c0), WTC(0xc5a79640), WTC(0xc5d4bac0), WTC(0xc601b880), WTC(0xc62e6580), WTC(0xc65ab600), -WTC(0xc686bd40), WTC(0xc6b28fc0), WTC(0xc6de41c0), WTC(0xc709de40), WTC(0xc7356640), WTC(0xc760da80), WTC(0xc78c3c40), WTC(0xc7b78640), -WTC(0xc7e2afc0), WTC(0xc80dae80), WTC(0xc83878c0), WTC(0xc86304c0), WTC(0xc88d4900), WTC(0xc8b73b80), WTC(0xc8e0d280), WTC(0xc90a0440), -/* part 1 */ -WTC(0xb5212e81), WTC(0xb4959501), WTC(0xb40ab501), WTC(0xb3808d81), WTC(0xb2f71f01), WTC(0xb26e6881), WTC(0xb1e66a01), WTC(0xb15f2381), -WTC(0xb0d89401), WTC(0xb052bc01), WTC(0xafcd9a81), WTC(0xaf492f01), WTC(0xaec57801), WTC(0xae427481), WTC(0xadc02281), WTC(0xad3e8101), -WTC(0xacbd9081), WTC(0xac3d5001), WTC(0xabbdc001), WTC(0xab3edf01), WTC(0xaac0ad01), WTC(0xaa432981), WTC(0xa9c65401), WTC(0xa94a2c01), -WTC(0xa8ceb201), WTC(0xa853e501), WTC(0xa7d9c681), WTC(0xa7605601), WTC(0xa6e79401), WTC(0xa66f8201), WTC(0xa5f81f81), WTC(0xa5816e81), -WTC(0xa50b6e81), WTC(0xa4962181), WTC(0xa4218801), WTC(0xa3ada281), WTC(0xa33a7201), WTC(0xa2c7f801), WTC(0xa2563501), WTC(0xa1e52a81), -WTC(0xa174da81), WTC(0xa1054701), WTC(0xa0967201), WTC(0xa0285d81), WTC(0x9fbb0981), WTC(0x9f4e7801), WTC(0x9ee2a901), WTC(0x9e779f81), -WTC(0x9e0d5e01), WTC(0x9da3e601), WTC(0x9d3b3b81), WTC(0x9cd35f81), WTC(0x9c6c5481), WTC(0x9c061b81), WTC(0x9ba0b701), WTC(0x9b3c2801), -WTC(0x9ad87081), WTC(0x9a759301), WTC(0x9a139101), WTC(0x99b26c81), WTC(0x99522801), WTC(0x98f2c601), WTC(0x98944901), WTC(0x9836b201), -WTC(0x97da0481), WTC(0x977e4181), WTC(0x97236b01), WTC(0x96c98381), WTC(0x96708b81), WTC(0x96188501), WTC(0x95c17081), WTC(0x956b4f81), -WTC(0x95162381), WTC(0x94c1ee01), WTC(0x946eaf81), WTC(0x941c6901), WTC(0x93cb1c81), WTC(0x937acb01), WTC(0x932b7501), WTC(0x92dd1b01), -WTC(0x928fbe01), WTC(0x92435d01), WTC(0x91f7f981), WTC(0x91ad9281), WTC(0x91642781), WTC(0x911bb981), WTC(0x90d44781), WTC(0x908dd101), -WTC(0x90485401), WTC(0x9003ce81), WTC(0x8fc03f01), WTC(0x8f7da401), WTC(0x8f3bfb01), WTC(0x8efb4181), WTC(0x8ebb7581), WTC(0x8e7c9301), -WTC(0x8e3e9481), WTC(0x8e017581), WTC(0x8dc53001), WTC(0x8d89be81), WTC(0x8d4f1b01), WTC(0x8d154081), WTC(0x8cdc2901), WTC(0x8ca3cb01), -WTC(0x8c6c1b01), WTC(0x8c350d01), WTC(0x8bfe9401), WTC(0x8bc8a401), WTC(0x8b933001), WTC(0x8b5e2c81), WTC(0x8b298b81), WTC(0x8af53e81), -WTC(0x8ac13381), WTC(0x8a8d5801), WTC(0x8a599a81), WTC(0x8a25f301), WTC(0x89f26101), WTC(0x89bee581), WTC(0x898b8301), WTC(0x89586901), -WTC(0x8925f101), WTC(0x88f47901), WTC(0x88c45e81), WTC(0x88962981), WTC(0x886a8a81), WTC(0x88423301), WTC(0x881dd301), WTC(0x87fdd781), -WTC(0x87d0ca81), WTC(0x87c76201), WTC(0x87bcab81), WTC(0x87b0ef01), WTC(0x87a48b01), WTC(0x8797dd81), WTC(0x878b4301), WTC(0x877ede01), -WTC(0x87729701), WTC(0x87665481), WTC(0x8759fd01), WTC(0x874d8681), WTC(0x8740f681), WTC(0x87345381), WTC(0x8727a381), WTC(0x871ae981), -WTC(0x870e2301), WTC(0x87014f81), WTC(0x86f46d81), WTC(0x86e77b81), WTC(0x86da7901), WTC(0x86cd6681), WTC(0x86c04381), WTC(0x86b30f01), -WTC(0x86a5ca81), WTC(0x86987581), WTC(0x868b1001), WTC(0x867d9a81), WTC(0x86701381), WTC(0x86627b01), WTC(0x8654d001), WTC(0x86471281), -WTC(0x86394301), WTC(0x862b6201), WTC(0x861d7081), WTC(0x860f6e01), WTC(0x86015981), WTC(0x85f33281), WTC(0x85e4f801), WTC(0x85d6a981), -WTC(0x85c84801), WTC(0x85b9d481), WTC(0x85ab4f01), WTC(0x859cb781), WTC(0x858e0e01), WTC(0x857f5101), WTC(0x85707f81), WTC(0x85619a01), -WTC(0x8552a181), WTC(0x85439601), WTC(0x85347901), WTC(0x85254a81), WTC(0x85160981), WTC(0x8506b581), WTC(0x84f74e01), WTC(0x84e7d381), -WTC(0x84d84601), WTC(0x84c8a701), WTC(0x84b8f801), WTC(0x84a93801), WTC(0x84996701), WTC(0x84898481), WTC(0x84798f81), WTC(0x84698881), -WTC(0x84597081), WTC(0x84494881), WTC(0x84391081), WTC(0x8428ca01), WTC(0x84187401), WTC(0x84080d81), WTC(0x83f79681), WTC(0x83e70f01), -WTC(0x83d67881), WTC(0x83c5d381), WTC(0x83b52101), WTC(0x83a46181), WTC(0x83939501), WTC(0x8382ba01), WTC(0x8371d081), WTC(0x8360d901), -WTC(0x834fd481), WTC(0x833ec381), WTC(0x832da781), WTC(0x831c8101), WTC(0x830b4f81), WTC(0x82fa1181), WTC(0x82e8c801), WTC(0x82d77201), -WTC(0x82c61101), WTC(0x82b4a601), WTC(0x82a33281), WTC(0x8291b601), WTC(0x82803101), WTC(0x826ea201), WTC(0x825d0901), WTC(0x824b6601), -WTC(0x8239b981), WTC(0x82280581), WTC(0x82164a81), WTC(0x82048881), WTC(0x81f2bf81), WTC(0x81e0ee81), WTC(0x81cf1581), WTC(0x81bd3401), -WTC(0x81ab4b01), WTC(0x81995c01), WTC(0x81876781), WTC(0x81756d81), WTC(0x81636d81), WTC(0x81516701), WTC(0x813f5981), WTC(0x812d4481), -WTC(0x811b2981), WTC(0x81090981), WTC(0x80f6e481), WTC(0x80e4bb81), WTC(0x80d28d81), WTC(0x80c05a01), WTC(0x80ae1f81), WTC(0x809bdf01), -WTC(0x80899881), WTC(0x80774c81), WTC(0x8064fc81), WTC(0x8052a881), WTC(0x80405101), WTC(0x802df701), WTC(0x801b9b01), WTC(0x80093e01), -WTC(0x0a74b120), WTC(0x0aa08a90), WTC(0x0acd2b80), WTC(0x0afa8860), WTC(0x0b289590), WTC(0x0b574790), WTC(0x0b8692d0), WTC(0x0bb66bb0), -WTC(0x0be6c6b0), WTC(0x0c179830), WTC(0x0c48d500), WTC(0x0c7a7ad0), WTC(0x0cac9000), WTC(0x0cdf1b60), WTC(0x0d122390), WTC(0x0d45a8f0), -WTC(0x0d79a5e0), WTC(0x0dae1480), WTC(0x0de2ef30), WTC(0x0e183800), WTC(0x0e4df8c0), WTC(0x0e843b90), WTC(0x0ebb0a20), WTC(0x0ef26430), -WTC(0x0f2a3fc0), WTC(0x0f629280), WTC(0x0f9b5210), WTC(0x0fd47690), WTC(0x100dfa80), WTC(0x1047d8a0), WTC(0x10820b40), WTC(0x10bc8b80), -WTC(0x10f75080), WTC(0x11325100), WTC(0x116d84e0), WTC(0x11a8ece0), WTC(0x11e49420), WTC(0x122085a0), WTC(0x125ccbc0), WTC(0x12995a40), -WTC(0x12d60e80), WTC(0x1312c4c0), WTC(0x134f59e0), WTC(0x138bae60), WTC(0x13c7a740), WTC(0x140329e0), WTC(0x143e1b60), WTC(0x147862a0), -WTC(0x14b1e840), WTC(0x14ea94c0), WTC(0x152250a0), WTC(0x15590380), WTC(0x158e93e0), WTC(0x15c2e820), WTC(0x15f5e6e0), WTC(0x162779a0), -WTC(0x16578ca0), WTC(0x16860ca0), WTC(0x16b2e640), WTC(0x16de0b00), WTC(0x17077140), WTC(0x172f0fa0), WTC(0x1754e200), WTC(0x17796080), -WTC(0x179d7f20), WTC(0x17c23760), WTC(0x17e87da0), WTC(0x1810cc80), WTC(0x183b25a0), WTC(0x18678520), WTC(0x1895e700), WTC(0x18c64540), -WTC(0x18f89780), WTC(0x192cd560), WTC(0x1962f680), WTC(0x199af2a0), WTC(0x19d4c1e0), WTC(0x1a105ca0), WTC(0x1a4dbae0), WTC(0x1a8cd660), -WTC(0x1acdaa60), WTC(0x1b103260), WTC(0x1b546940), WTC(0x1b9a4600), WTC(0x1be1bb80), WTC(0x1c2abc60), WTC(0x1c753b80), WTC(0x1cc13860), -WTC(0x1d0ebe20), WTC(0x1d5dd8c0), WTC(0x1dae9480), WTC(0x1e010060), WTC(0x1e552f40), WTC(0x1eab33e0), WTC(0x1f032060), WTC(0x1f5cfce0), -WTC(0x1fb8c660), WTC(0x201679c0), WTC(0x207611c0), WTC(0x20d75f00), WTC(0x213a0640), WTC(0x219dab80), WTC(0x2201f480), WTC(0x2266ba80), -WTC(0x22cc0ac0), WTC(0x2331f4c0), WTC(0x23988940), WTC(0x23ffff40), WTC(0x2468b340), WTC(0x24d30300), WTC(0x253f4900), WTC(0x25ad8980), -WTC(0x261d72c0), WTC(0x268eaec0), WTC(0x2700e880), WTC(0x2773db40), WTC(0x27e751c0), WTC(0x285b1780), WTC(0x28cefbc0), WTC(0x29431f80), -WTC(0x29b7f680), WTC(0x2a2df780), WTC(0x2aa59880), WTC(0x2b1f3280), WTC(0x2b9b0140), WTC(0x2c194000), WTC(0x2c9a2540), WTC(0x2d1d8dc0), -WTC(0x2da2fc40), WTC(0x2e29ee80), WTC(0x2eb1e340), WTC(0x2f3a4e40), WTC(0x2fc29980), WTC(0x304a2ec0), WTC(0x30d07cc0), WTC(0x315566c0), -WTC(0x31d94480), WTC(0x325c72c0), WTC(0x32df51c0), WTC(0x33628c80), WTC(0x33e71a00), WTC(0x346df400), WTC(0x34f80dc0), WTC(0x3585c640), -WTC(0x3616e700), WTC(0x36ab3380), WTC(0x37426ac0), WTC(0x37dbe840), WTC(0x3876a340), WTC(0x39118f40), WTC(0x39aba2c0), WTC(0x3a4422c0), -WTC(0x3adaa200), WTC(0x3b6eb6c0), WTC(0x3bfffd80), WTC(0x3c8e9380), WTC(0x3d1b1780), WTC(0x3da62e00), WTC(0x3e307b00), WTC(0x3eba97c0), -WTC(0x3f451280), WTC(0x3fd07940), WTC(0x405d577f), WTC(0x40ebf57f), WTC(0x417c59ff), WTC(0x420e897f), WTC(0x42a2857f), WTC(0x4338307f), -WTC(0x43cf4d7f), WTC(0x44679cff), WTC(0x4500dfff), WTC(0x459ac2ff), WTC(0x4634e2ff), WTC(0x46ced9ff), WTC(0x4768437f), WTC(0x4800d27f), -WTC(0x489850ff), WTC(0x492e88ff), WTC(0x49c346ff), WTC(0x4a5678ff), WTC(0x4ae82f7f), WTC(0x4b787c7f), WTC(0x4c07717f), WTC(0x4c95337f), -WTC(0x4d21f77f), WTC(0x4dadf3ff), WTC(0x4e395eff), WTC(0x4ec4657f), WTC(0x4f4f297f), WTC(0x4fd9cd7f), WTC(0x5064737f), WTC(0x50ef3cff), -WTC(0x517a46ff), WTC(0x5205b0ff), WTC(0x529197ff), WTC(0x531e04ff), WTC(0x53aaeb7f), WTC(0x54383eff), WTC(0x54c5ef7f), WTC(0x5553a8ff), -WTC(0x55e0d57f), WTC(0x566cda7f), WTC(0x56f720ff), WTC(0x577f4aff), WTC(0x580534ff), WTC(0x5888bd7f), WTC(0x5909c6ff), WTC(0x598890ff), -WTC(0x5a05b7ff), WTC(0x5a81db7f), WTC(0x5afd99ff), WTC(0x5b794a7f), WTC(0x5bf5007f), WTC(0x5c70cbff), WTC(0x5cecbb7f), WTC(0x5d68c47f), -WTC(0x5de4c3ff), WTC(0x5e6094ff), WTC(0x5edc127f), WTC(0x5f56fdff), WTC(0x5fd1017f), WTC(0x6049c67f), WTC(0x60c0f67f), WTC(0x613650ff), -WTC(0x61a9a9ff), WTC(0x621ad77f), WTC(0x6289b37f), WTC(0x62f67fff), WTC(0x6361e87f), WTC(0x63cc9bff), WTC(0x6437457f), WTC(0x64a2247f), -WTC(0x650d0c7f), WTC(0x6577cc7f), WTC(0x65e2327f), WTC(0x664bf57f), WTC(0x66b4b5ff), WTC(0x671c137f), WTC(0x6781afff), WTC(0x67e579ff), -WTC(0x6847abff), WTC(0x68a882ff), WTC(0x69083bff), WTC(0x6966fbff), WTC(0x69c4cfff), WTC(0x6a21c57f), WTC(0x6a7de87f), WTC(0x6ad9377f), -WTC(0x6b33a5ff), WTC(0x6b8d257f), WTC(0x6be5a8ff), WTC(0x6c3d20ff), WTC(0x6c9380ff), WTC(0x6ce8ba7f), WTC(0x6d3cbfff), WTC(0x6d8f827f), -/* part 2 */ -WTC(0xad98b481), WTC(0xaead9d01), WTC(0xafbfc381), WTC(0xb0cf4d01), WTC(0xb1dc5f81), WTC(0xb2e72081), WTC(0xb3efb501), WTC(0xb4f64381), -WTC(0xb5faf101), WTC(0xb6fde401), WTC(0xb7ff4001), WTC(0xb8ff1601), WTC(0xb9fd6181), WTC(0xbafa1d01), WTC(0xbbf54401), WTC(0xbceed101), -WTC(0xbde6c081), WTC(0xbedd0e81), WTC(0xbfd1b701), WTC(0xc0c4b440), WTC(0xc1b5ffc0), WTC(0xc2a59340), WTC(0xc3936780), WTC(0xc47f78c0), -WTC(0xc569c600), WTC(0xc6524d40), WTC(0xc7390dc0), WTC(0xc81e04c0), WTC(0xc9012e00), WTC(0xc9e28540), WTC(0xcac20700), WTC(0xcb9fb1c0), -WTC(0xcc7b8640), WTC(0xcd558600), WTC(0xce2db200), WTC(0xcf0409c0), WTC(0xcfd88a40), WTC(0xd0ab3080), WTC(0xd17bfa00), WTC(0xd24ae640), -WTC(0xd317f7c0), WTC(0xd3e33080), WTC(0xd4ac9340), WTC(0xd5741f40), WTC(0xd639d2c0), WTC(0xd6fdab00), WTC(0xd7bfa5c0), WTC(0xd87fc300), -WTC(0xd93e0600), WTC(0xd9fa7180), WTC(0xdab50900), WTC(0xdb6dccc0), WTC(0xdc24ba80), WTC(0xdcd9d000), WTC(0xdd8d0b80), WTC(0xde3e6dc0), -WTC(0xdeedf9c0), WTC(0xdf9bb340), WTC(0xe0479e20), WTC(0xe0f1bac0), WTC(0xe19a07e0), WTC(0xe2408380), WTC(0xe2e52c00), WTC(0xe38802e0), -WTC(0xe4290c00), WTC(0xe4c84c20), WTC(0xe565c760), WTC(0xe6017f20), WTC(0xe69b7240), WTC(0xe7339f60), WTC(0xe7ca0500), WTC(0xe85ea480), -WTC(0xe8f18180), WTC(0xe9829fc0), WTC(0xea1202e0), WTC(0xea9fab80), WTC(0xeb2b9700), WTC(0xebb5c2a0), WTC(0xec3e2bc0), WTC(0xecc4d300), -WTC(0xed49bc80), WTC(0xedccec60), WTC(0xee4e66a0), WTC(0xeece2d80), WTC(0xef4c41e0), WTC(0xefc8a480), WTC(0xf0435610), WTC(0xf0bc5c60), -WTC(0xf133c230), WTC(0xf1a99270), WTC(0xf21dd7b0), WTC(0xf29097e0), WTC(0xf301d3d0), WTC(0xf3718c20), WTC(0xf3dfc180), WTC(0xf44c7100), -WTC(0xf4b79480), WTC(0xf52125b0), WTC(0xf5891df0), WTC(0xf5ef6fe0), WTC(0xf6540730), WTC(0xf6b6cf50), WTC(0xf717b490), WTC(0xf776b9a0), -WTC(0xf7d3f720), WTC(0xf82f86e8), WTC(0xf8898260), WTC(0xf8e1fc50), WTC(0xf93900f0), WTC(0xf98e9c28), WTC(0xf9e2d940), WTC(0xfa35b4a0), -WTC(0xfa871bd8), WTC(0xfad6fbd0), WTC(0xfb254250), WTC(0xfb71f0c0), WTC(0xfbbd1c28), WTC(0xfc06da60), WTC(0xfc4f40a4), WTC(0xfc965500), -WTC(0xfcdc0e5c), WTC(0xfd2062f4), WTC(0xfd6348d0), WTC(0xfda4b1b8), WTC(0xfde48b2c), WTC(0xfe22c280), WTC(0xfe5f462a), WTC(0xfe9a1f2e), -WTC(0xfed3711c), WTC(0xff0b60ac), WTC(0xff4212dd), WTC(0xff77b344), WTC(0xffac7407), WTC(0xffe08796), WTC(0x00141e37), WTC(0x00473665), -WTC(0x00799cd0), WTC(0x00ab1bff), WTC(0x00db7d8b), WTC(0x010a75ea), WTC(0x0137a46e), WTC(0x0162a77a), WTC(0x018b20ac), WTC(0x01b0fb7a), -WTC(0x01d46d3c), WTC(0x01f5ae7c), WTC(0x0214f91c), WTC(0x0232a5cc), WTC(0x024f2c04), WTC(0x026b048c), WTC(0x0286a628), WTC(0x02a25808), -WTC(0x02be31c0), WTC(0x02da48e0), WTC(0x02f6b09c), WTC(0x031345dc), WTC(0x032faf50), WTC(0x034b9148), WTC(0x036690e8), WTC(0x0380658c), -WTC(0x0398d8e4), WTC(0x03afb568), WTC(0x03c4c6e0), WTC(0x03d7f770), WTC(0x03e94f9c), WTC(0x03f8d938), WTC(0x04069ee8), WTC(0x0412bef8), -WTC(0x041d6b30), WTC(0x0426d638), WTC(0x042f3288), WTC(0x0436ad98), WTC(0x043d6fd0), WTC(0x0443a170), WTC(0x04496a40), WTC(0x044ee728), -WTC(0x04542a40), WTC(0x04594520), WTC(0x045e4890), WTC(0x04633210), WTC(0x0467ebe8), WTC(0x046c5f80), WTC(0x04707630), WTC(0x047417f0), -WTC(0x04772b58), WTC(0x047996e8), WTC(0x047b4140), WTC(0x047c12a0), WTC(0x047bf520), WTC(0x047ad2e0), WTC(0x04789690), WTC(0x047539c8), -WTC(0x0470c4b8), WTC(0x046b4058), WTC(0x0464b600), WTC(0x045d3a08), WTC(0x0454ebc8), WTC(0x044beb00), WTC(0x04425798), WTC(0x043853b0), -WTC(0x042e0398), WTC(0x04238bd8), WTC(0x04190f98), WTC(0x040e9670), WTC(0x04040c18), WTC(0x03f95b30), WTC(0x03ee6e20), WTC(0x03e32b64), -WTC(0x03d77598), WTC(0x03cb2f24), WTC(0x03be3b18), WTC(0x03b08b18), WTC(0x03a21f64), WTC(0x0392f8d4), WTC(0x038318e0), WTC(0x03728e94), -WTC(0x03617694), WTC(0x034fee18), WTC(0x033e11f4), WTC(0x032bf530), WTC(0x0319a114), WTC(0x03071e80), WTC(0x02f475f4), WTC(0x02e1a7c0), -WTC(0x02ceac04), WTC(0x02bb7a84), WTC(0x02a80af0), WTC(0x029452b0), WTC(0x028044e0), WTC(0x026bd488), WTC(0x0256f558), WTC(0x0241a940), -WTC(0x022c0084), WTC(0x02160c08), WTC(0x01ffdc5a), WTC(0x01e97ad2), WTC(0x01d2e982), WTC(0x01bc2a2a), WTC(0x01a53e8c), WTC(0x018e2860), -WTC(0x0176e94c), WTC(0x015f82fa), WTC(0x0147f70e), WTC(0x013046c2), WTC(0x011872e8), WTC(0x01007c4a), WTC(0x00e863cf), WTC(0x00d02c81), -WTC(0x00b7db94), WTC(0x009f7651), WTC(0x00870204), WTC(0x006e83f8), WTC(0x00560176), WTC(0x003d7fcb), WTC(0x0025043f), WTC(0x000c941f), -WTC(0xd65574c0), WTC(0xd5ebc100), WTC(0xd582d080), WTC(0xd51a9cc0), WTC(0xd4b31f80), WTC(0xd44c5280), WTC(0xd3e62f80), WTC(0xd380b040), -WTC(0xd31bce40), WTC(0xd2b78380), WTC(0xd253ca40), WTC(0xd1f0acc0), WTC(0xd18e4580), WTC(0xd12caf40), WTC(0xd0cc0400), WTC(0xd06c40c0), -WTC(0xd00d4740), WTC(0xcfaef6c0), WTC(0xcf513140), WTC(0xcef3fa80), WTC(0xce977a40), WTC(0xce3bd980), WTC(0xcde13f40), WTC(0xcd87a880), -WTC(0xcd2ee800), WTC(0xccd6cf00), WTC(0xcc7f2f40), WTC(0xcc27e880), WTC(0xcbd0ea00), WTC(0xcb7a2380), WTC(0xcb238380), WTC(0xcaccee80), -WTC(0xca763ec0), WTC(0xca1f4d00), WTC(0xc9c7f480), WTC(0xc9703b40), WTC(0xc9185200), WTC(0xc8c06b00), WTC(0xc868b4c0), WTC(0xc81100c0), -WTC(0xc7b8c280), WTC(0xc75f6a40), WTC(0xc7046900), WTC(0xc6a74340), WTC(0xc6479300), WTC(0xc5e4f200), WTC(0xc57efac0), WTC(0xc5154880), -WTC(0xc4a77780), WTC(0xc4352440), WTC(0xc3bdeac0), WTC(0xc3416740), WTC(0xc2bf33c0), WTC(0xc236eb40), WTC(0xc1a82900), WTC(0xc11290c0), -WTC(0xc075cf00), WTC(0xbfd19081), WTC(0xbf258401), WTC(0xbe716d81), WTC(0xbdb52b81), WTC(0xbcf09a81), WTC(0xbc23af81), WTC(0xbb505c01), -WTC(0xba7a9081), WTC(0xb9a65281), WTC(0xb8d79301), WTC(0xb8104c01), WTC(0xb7508181), WTC(0xb6982201), WTC(0xb5e71b01), WTC(0xb53d5b01), -WTC(0xb49ad081), WTC(0xb3ff6901), WTC(0xb36b1301), WTC(0xb2ddbd01), WTC(0xb2575481), WTC(0xb1d7c801), WTC(0xb15f0601), WTC(0xb0ecfc01), -WTC(0xb0819881), WTC(0xb01cca01), WTC(0xafbe7e01), WTC(0xaf66a301), WTC(0xaf152701), WTC(0xaec9f881), WTC(0xae850601), WTC(0xae463c81), -WTC(0xae0d8b01), WTC(0xaddae001), WTC(0xadae2881), WTC(0xad875381), WTC(0xad664f81), WTC(0xad4b0981), WTC(0xad357081), WTC(0xad257301), -WTC(0xad1afe01), WTC(0xad160081), WTC(0xad166901), WTC(0xad1c2481), WTC(0xad272201), WTC(0xad374f81), WTC(0xad4c9b01), WTC(0xad66f381), -WTC(0xad864601), WTC(0xadaa8101), WTC(0xadd39301), WTC(0xae016a01), WTC(0xae33f481), WTC(0xae6b2001), WTC(0xaea6db01), WTC(0xaee71381), -WTC(0xaf2bb801), WTC(0xaf74b681), WTC(0xafc1fd01), WTC(0xb0137a01), WTC(0xb0691b81), WTC(0xb0c2cf81), WTC(0xb1208481), WTC(0xb1822881), -WTC(0xb1e7a981), WTC(0xb250f601), WTC(0xb2bdfc01), WTC(0xb32eaa01), WTC(0xb3a2ed01), WTC(0xb41ab481), WTC(0xb495ee01), WTC(0xb5148801), -WTC(0xb5967081), WTC(0xb61b9581), WTC(0xb6a3e581), WTC(0xb72f4e01), WTC(0xb7bdbe01), WTC(0xb84f2381), WTC(0xb8e36c81), WTC(0xb97a8701), -WTC(0xba146101), WTC(0xbab0e981), WTC(0xbb500d81), WTC(0xbbf1bc81), WTC(0xbc95e381), WTC(0xbd3c7181), WTC(0xbde55481), WTC(0xbe907a01), -WTC(0xbf3dd101), WTC(0xbfed4701), WTC(0xc09ecac0), WTC(0xc1524a00), WTC(0xc207b300), WTC(0xc2bef440), WTC(0xc377fb80), WTC(0xc432b700), -WTC(0xc4ef1500), WTC(0xc5ad03c0), WTC(0xc66c7140), WTC(0xc72d4bc0), WTC(0xc7ef8180), WTC(0xc8b30080), WTC(0xc977b700), WTC(0xca3d9340), -WTC(0xcb048340), WTC(0xcbcc7540), WTC(0xcc955740), WTC(0xcd5f17c0), WTC(0xce29a480), WTC(0xcef4ec00), WTC(0xcfc0dc80), WTC(0xd08d63c0), -WTC(0xd15a7040), WTC(0xd227f000), WTC(0xd2f5d140), WTC(0xd3c40240), WTC(0xd4927100), WTC(0xd5610b80), WTC(0xd62fc080), WTC(0xd6fe7dc0), -WTC(0xd7cd3140), WTC(0xd89bc980), WTC(0xd96a34c0), WTC(0xda3860c0), WTC(0xdb063c00), WTC(0xdbd3b480), WTC(0xdca0b880), WTC(0xdd6d3640), -WTC(0xde391bc0), WTC(0xdf045740), WTC(0xdfced6c0), WTC(0xe09888c0), WTC(0xe1615b20), WTC(0xe2293c20), WTC(0xe2f01a00), WTC(0xe3b5e2c0), -WTC(0xe47a84c0), WTC(0xe53dee00), WTC(0xe6000cc0), WTC(0xe6c0cf20), WTC(0xe7802360), WTC(0xe83df7a0), WTC(0xe8fa39e0), WTC(0xe9b4d880), -WTC(0xea6dc1a0), WTC(0xeb24e360), WTC(0xebda2be0), WTC(0xec8d8960), WTC(0xed3eea20), WTC(0xedee3c00), WTC(0xee9b6d80), WTC(0xef466ca0), -WTC(0xefef2780), WTC(0xf0958c50), WTC(0xf1398950), WTC(0xf1db0ca0), WTC(0xf27a0470), WTC(0xf3165ed0), WTC(0xf3b00a10), WTC(0xf446f440), -WTC(0xf4db0b90), WTC(0xf56c3e30), WTC(0xf5fa7a50), WTC(0xf685ae10), WTC(0xf70dc7a0), WTC(0xf792b520), WTC(0xf81464c8), WTC(0xf892c4c0), -WTC(0xf90dc330), WTC(0xf9854e40), WTC(0xf9f95418), WTC(0xfa69c2f0), WTC(0xfad688e8), WTC(0xfb3f9428), WTC(0xfba4d2e8), WTC(0xfc063344), -WTC(0xfc63a370), WTC(0xfcbd1194), WTC(0xfd126bdc), WTC(0xfd63a06c), WTC(0xfdb09d78), WTC(0xfdf95124), WTC(0xfe3da99e), WTC(0xfe7d950e), -WTC(0xfeb901a2), WTC(0xfeefdd80), WTC(0xff2216d7), WTC(0xff4f9bcf), WTC(0xff785a93), WTC(0xff9c414e), WTC(0xffbb3e2b), WTC(0xffd53f54), -WTC(0xffea32f4), WTC(0xfffa0735), WTC(0x0004aa43), WTC(0x000a0a47), WTC(0x000a156c), WTC(0x0004b9de), WTC(0xfff9e5c5), WTC(0xffe9874e) -}; - - -const FIXP_WTB LowDelaySynthesis480[1440] = { - -WTC(0xdad2e6c0), WTC(0xdb1da900), WTC(0xdb68ce40), WTC(0xdbb45840), WTC(0xdc004940), WTC(0xdc4ca280), WTC(0xdc996500), WTC(0xdce69140), -WTC(0xdd342780), WTC(0xdd822700), WTC(0xddd08a80), WTC(0xde1f4d00), WTC(0xde6e6ec0), WTC(0xdebdec40), WTC(0xdf0dba80), WTC(0xdf5dd540), -WTC(0xdfae3cc0), WTC(0xdfff0500), WTC(0xe0505140), WTC(0xe0a22980), WTC(0xe0f488e0), WTC(0xe1476180), WTC(0xe19aa480), WTC(0xe1ee4d80), -WTC(0xe2425400), WTC(0xe29689a0), WTC(0xe2eacd60), WTC(0xe33f2420), WTC(0xe393a300), WTC(0xe3e87f20), WTC(0xe43dcee0), WTC(0xe4938a80), -WTC(0xe4e9b0a0), WTC(0xe5404300), WTC(0xe5973e60), WTC(0xe5ee9b80), WTC(0xe64649e0), WTC(0xe69e37e0), WTC(0xe6f65ec0), WTC(0xe74eb6c0), -WTC(0xe7a73000), WTC(0xe7ffbe40), WTC(0xe8585ee0), WTC(0xe8b10740), WTC(0xe9099c40), WTC(0xe96214e0), WTC(0xe9ba79a0), WTC(0xea12e7c0), -WTC(0xea6b89c0), WTC(0xeac46580), WTC(0xeb1d7260), WTC(0xeb76b620), WTC(0xebd036c0), WTC(0xec29e520), WTC(0xec83aa60), WTC(0xecdd5a00), -WTC(0xed36d500), WTC(0xed901540), WTC(0xede91160), WTC(0xee41bc20), WTC(0xee9a0ee0), WTC(0xeef20860), WTC(0xef49a7e0), WTC(0xefa0ec00), -WTC(0xeff7d1c0), WTC(0xf04e56b0), WTC(0xf0a476e0), WTC(0xf0fa2f60), WTC(0xf14f80e0), WTC(0xf1a46e10), WTC(0xf1f8fe80), WTC(0xf24d34a0), -WTC(0xf2a10bb0), WTC(0xf2f48210), WTC(0xf3479cc0), WTC(0xf39a5be0), WTC(0xf3ecb8f0), WTC(0xf43eafa0), WTC(0xf4903b50), WTC(0xf4e14e80), -WTC(0xf531d6a0), WTC(0xf581bc10), WTC(0xf5d0e9c0), WTC(0xf61f5250), WTC(0xf66ce6e0), WTC(0xf6b99330), WTC(0xf7054eb0), WTC(0xf7501f20), -WTC(0xf79a0750), WTC(0xf7e30700), WTC(0xf82b2fc0), WTC(0xf872a138), WTC(0xf8b97f18), WTC(0xf8ffe668), WTC(0xf945e538), WTC(0xf98b8860), -WTC(0xf9d0f380), WTC(0xfa165148), WTC(0xfa5bb8a8), WTC(0xfaa13df8), WTC(0xfae6fb00), WTC(0xfb2cf8c8), WTC(0xfb732a80), WTC(0xfbb97910), -WTC(0xfbffcd10), WTC(0xfc463478), WTC(0xfc8cd3fc), WTC(0xfcd3be5c), WTC(0xfd1afa90), WTC(0xfd62aa84), WTC(0xfdab0288), WTC(0xfdf404b4), -WTC(0xfe3d3006), WTC(0xfe85b20e), WTC(0xfecca4cc), WTC(0xff10d559), WTC(0xff50579b), WTC(0xff8a40d2), WTC(0xffb7d86e), WTC(0xffef6bbb), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), WTC(0x00000000), -WTC(0xbff67a01), WTC(0xbfecaa81), WTC(0xbfe2d901), WTC(0xbfd90601), WTC(0xbfcf3181), WTC(0xbfc55c81), WTC(0xbfbb8701), WTC(0xbfb1b101), -WTC(0xbfa7dc01), WTC(0xbf9e0701), WTC(0xbf943301), WTC(0xbf8a5f81), WTC(0xbf808b81), WTC(0xbf76b701), WTC(0xbf6ce201), WTC(0xbf630d81), -WTC(0xbf593a01), WTC(0xbf4f6801), WTC(0xbf459681), WTC(0xbf3bc601), WTC(0xbf31f501), WTC(0xbf282501), WTC(0xbf1e5501), WTC(0xbf148681), -WTC(0xbf0aba01), WTC(0xbf00ef81), WTC(0xbef72681), WTC(0xbeed5f01), WTC(0xbee39801), WTC(0xbed9d281), WTC(0xbed00f81), WTC(0xbec64e81), -WTC(0xbebc9181), WTC(0xbeb2d681), WTC(0xbea91f01), WTC(0xbe9f6901), WTC(0xbe95b581), WTC(0xbe8c0501), WTC(0xbe825801), WTC(0xbe78b001), -WTC(0xbe6f0c01), WTC(0xbe656c01), WTC(0xbe5bd001), WTC(0xbe523781), WTC(0xbe48a301), WTC(0xbe3f1381), WTC(0xbe358901), WTC(0xbe2c0501), -WTC(0xbe228681), WTC(0xbe190d81), WTC(0xbe0f9a01), WTC(0xbe062b81), WTC(0xbdfcc301), WTC(0xbdf36101), WTC(0xbdea0681), WTC(0xbde0b301), -WTC(0xbdd76701), WTC(0xbdce2181), WTC(0xbdc4e301), WTC(0xbdbbab01), WTC(0xbdb27b01), WTC(0xbda95301), WTC(0xbda03381), WTC(0xbd971c81), -WTC(0xbd8e0e01), WTC(0xbd850701), WTC(0xbd7c0781), WTC(0xbd731081), WTC(0xbd6a2201), WTC(0xbd613d81), WTC(0xbd586281), WTC(0xbd4f9101), -WTC(0xbd46c801), WTC(0xbd3e0801), WTC(0xbd355081), WTC(0xbd2ca281), WTC(0xbd23ff01), WTC(0xbd1b6501), WTC(0xbd12d581), WTC(0xbd0a4f81), -WTC(0xbd01d281), WTC(0xbcf95e81), WTC(0xbcf0f381), WTC(0xbce89281), WTC(0xbce03b81), WTC(0xbcd7ef01), WTC(0xbccfac01), WTC(0xbcc77181), -WTC(0xbcbf4001), WTC(0xbcb71701), WTC(0xbcaef701), WTC(0xbca6e101), WTC(0xbc9ed481), WTC(0xbc96d101), WTC(0xbc8ed701), WTC(0xbc86e581), -WTC(0xbc7efc81), WTC(0xbc771c01), WTC(0xbc6f4401), WTC(0xbc677501), WTC(0xbc5fae81), WTC(0xbc57f101), WTC(0xbc503b81), WTC(0xbc488e81), -WTC(0xbc40e881), WTC(0xbc394901), WTC(0xbc31af01), WTC(0xbc2a1a81), WTC(0xbc228f01), WTC(0xbc1b1081), WTC(0xbc13a481), WTC(0xbc0c4581), -WTC(0xbc04e381), WTC(0xbbfd6c01), WTC(0xbbf5d181), WTC(0xbbee2f81), WTC(0xbbe6c801), WTC(0xbbdfdb81), WTC(0xbbd9a781), WTC(0xbbd45881), -WTC(0xbbd01301), WTC(0xbbccfc81), WTC(0xbbcb2281), WTC(0xbbca5d01), WTC(0xbbca7481), WTC(0xbbcb3201), WTC(0xbbcc6b01), WTC(0xbbce0601), -WTC(0xbbcfea81), WTC(0xbbd20301), WTC(0xbbd45601), WTC(0xbbd70201), WTC(0xbbda2501), WTC(0xbbdddb01), WTC(0xbbe23281), WTC(0xbbe73201), -WTC(0xbbece281), WTC(0xbbf34281), WTC(0xbbfa3c01), WTC(0xbc01b381), WTC(0xbc098d81), WTC(0xbc11b681), WTC(0xbc1a2401), WTC(0xbc22cd81), -WTC(0xbc2bab01), WTC(0xbc34c081), WTC(0xbc3e1981), WTC(0xbc47c281), WTC(0xbc51cb01), WTC(0xbc5c4c81), WTC(0xbc676501), WTC(0xbc733401), -WTC(0xbc7fd301), WTC(0xbc8d5101), WTC(0xbc9bb901), WTC(0xbcab1781), WTC(0xbcbb7001), WTC(0xbcccbd01), WTC(0xbcdef701), WTC(0xbcf21601), -WTC(0xbd060c81), WTC(0xbd1ac801), WTC(0xbd303581), WTC(0xbd464281), WTC(0xbd5ce281), WTC(0xbd740b81), WTC(0xbd8bb281), WTC(0xbda3d081), -WTC(0xbdbc6381), WTC(0xbdd56b81), WTC(0xbdeee981), WTC(0xbe08e181), WTC(0xbe236001), WTC(0xbe3e7201), WTC(0xbe5a2301), WTC(0xbe767e81), -WTC(0xbe938c81), WTC(0xbeb15701), WTC(0xbecfe601), WTC(0xbeef4601), WTC(0xbf0f8301), WTC(0xbf30a901), WTC(0xbf52c101), WTC(0xbf75cc81), -WTC(0xbf99cb01), WTC(0xbfbebb81), WTC(0xbfe48981), WTC(0xc00b04c0), WTC(0xc031f880), WTC(0xc0593340), WTC(0xc0809280), WTC(0xc0a802c0), -WTC(0xc0cf6ec0), WTC(0xc0f6cc00), WTC(0xc11e3a80), WTC(0xc145f040), WTC(0xc16e22c0), WTC(0xc196fb00), WTC(0xc1c08680), WTC(0xc1eaca00), -WTC(0xc215cbc0), WTC(0xc2418940), WTC(0xc26df5c0), WTC(0xc29b02c0), WTC(0xc2c8a140), WTC(0xc2f6b500), WTC(0xc3251740), WTC(0xc353a0c0), -WTC(0xc3822c00), WTC(0xc3b09940), WTC(0xc3deccc0), WTC(0xc40ca800), WTC(0xc43a28c0), WTC(0xc4678a00), WTC(0xc4951780), WTC(0xc4c31d00), -WTC(0xc4f1bdc0), WTC(0xc520e840), WTC(0xc5508440), WTC(0xc5807900), WTC(0xc5b09e80), WTC(0xc5e0bfc0), WTC(0xc610a740), WTC(0xc64029c0), -WTC(0xc66f49c0), WTC(0xc69e2180), WTC(0xc6ccca40), WTC(0xc6fb5700), WTC(0xc729cc80), WTC(0xc7582b40), WTC(0xc7867480), WTC(0xc7b4a480), -WTC(0xc7e2afc0), WTC(0xc8108a80), WTC(0xc83e28c0), WTC(0xc86b7f00), WTC(0xc8988100), WTC(0xc8c52340), WTC(0xc8f15980), WTC(0xc91d1840), -WTC(0xb4d6a381), WTC(0xb4422b81), WTC(0xb3ae8601), WTC(0xb31bb301), WTC(0xb289b181), WTC(0xb1f88181), WTC(0xb1682281), WTC(0xb0d89401), -WTC(0xb049d601), WTC(0xafbbe801), WTC(0xaf2ec901), WTC(0xaea27681), WTC(0xae16f001), WTC(0xad8c3301), WTC(0xad023f01), WTC(0xac791401), -WTC(0xabf0b181), WTC(0xab691681), WTC(0xaae24301), WTC(0xaa5c3601), WTC(0xa9d6ef01), WTC(0xa9526d81), WTC(0xa8ceb201), WTC(0xa84bbb81), -WTC(0xa7c98b01), WTC(0xa7482101), WTC(0xa6c77e01), WTC(0xa647a301), WTC(0xa5c89001), WTC(0xa54a4701), WTC(0xa4ccc901), WTC(0xa4501601), -WTC(0xa3d43001), WTC(0xa3591801), WTC(0xa2dece81), WTC(0xa2655581), WTC(0xa1ecae01), WTC(0xa174da81), WTC(0xa0fddd81), WTC(0xa087b981), -WTC(0xa0127081), WTC(0x9f9e0301), WTC(0x9f2a7281), WTC(0x9eb7c101), WTC(0x9e45f081), WTC(0x9dd50481), WTC(0x9d650081), WTC(0x9cf5e701), -WTC(0x9c87ba81), WTC(0x9c1a7c81), WTC(0x9bae2f81), WTC(0x9b42d581), WTC(0x9ad87081), WTC(0x9a6f0381), WTC(0x9a069001), WTC(0x999f1981), -WTC(0x9938a281), WTC(0x98d32d81), WTC(0x986ebd81), WTC(0x980b5501), WTC(0x97a8f681), WTC(0x9747a481), WTC(0x96e76101), WTC(0x96882e01), -WTC(0x962a0c81), WTC(0x95ccff01), WTC(0x95710601), WTC(0x95162381), WTC(0x94bc5981), WTC(0x9463a881), WTC(0x940c1281), WTC(0x93b59901), -WTC(0x93603d01), WTC(0x930bff81), WTC(0x92b8e101), WTC(0x9266e281), WTC(0x92160301), WTC(0x91c64301), WTC(0x9177a301), WTC(0x912a2201), -WTC(0x90ddc001), WTC(0x90927b81), WTC(0x90485401), WTC(0x8fff4601), WTC(0x8fb74f81), WTC(0x8f706f01), WTC(0x8f2aa101), WTC(0x8ee5e301), -WTC(0x8ea23201), WTC(0x8e5f8881), WTC(0x8e1de001), WTC(0x8ddd3201), WTC(0x8d9d7781), WTC(0x8d5eaa01), WTC(0x8d20c301), WTC(0x8ce3ba81), -WTC(0x8ca78781), WTC(0x8c6c1b01), WTC(0x8c316681), WTC(0x8bf75b01), WTC(0x8bbde981), WTC(0x8b850281), WTC(0x8b4c9701), WTC(0x8b149701), -WTC(0x8adcee01), WTC(0x8aa58681), WTC(0x8a6e4a01), WTC(0x8a372881), WTC(0x8a001f01), WTC(0x89c92f81), WTC(0x89925a81), WTC(0x895bcd01), -WTC(0x8925f101), WTC(0x88f13801), WTC(0x88be1681), WTC(0x888d3181), WTC(0x885f8481), WTC(0x88353501), WTC(0x88124281), WTC(0x87e73d81), -WTC(0x87d4ac81), WTC(0x87cb5101), WTC(0x87c05e81), WTC(0x87b42481), WTC(0x87a70e81), WTC(0x87998f01), WTC(0x878c1881), WTC(0x877ede01), -WTC(0x8771c601), WTC(0x8764b101), WTC(0x87578181), WTC(0x874a2f01), WTC(0x873cc201), WTC(0x872f4201), WTC(0x8721b481), WTC(0x87141b01), -WTC(0x87067281), WTC(0x86f8ba81), WTC(0x86eaf081), WTC(0x86dd1481), WTC(0x86cf2601), WTC(0x86c12401), WTC(0x86b30f01), WTC(0x86a4e781), -WTC(0x8696ad01), WTC(0x86886001), WTC(0x867a0081), WTC(0x866b8d81), WTC(0x865d0581), WTC(0x864e6901), WTC(0x863fb701), WTC(0x8630f181), -WTC(0x86221801), WTC(0x86132c01), WTC(0x86042c01), WTC(0x85f51681), WTC(0x85e5eb81), WTC(0x85d6a981), WTC(0x85c75201), WTC(0x85b7e601), -WTC(0x85a86581), WTC(0x8598d081), WTC(0x85892681), WTC(0x85796601), WTC(0x85698e81), WTC(0x8559a081), WTC(0x85499d01), WTC(0x85398481), -WTC(0x85295881), WTC(0x85191801), WTC(0x8508c181), WTC(0x84f85581), WTC(0x84e7d381), WTC(0x84d73c01), WTC(0x84c69101), WTC(0x84b5d301), -WTC(0x84a50201), WTC(0x84941d81), WTC(0x84832481), WTC(0x84721701), WTC(0x8460f581), WTC(0x844fc081), WTC(0x843e7a81), WTC(0x842d2281), -WTC(0x841bb981), WTC(0x840a3e81), WTC(0x83f8b001), WTC(0x83e70f01), WTC(0x83d55d01), WTC(0x83c39a81), WTC(0x83b1c881), WTC(0x839fe801), -WTC(0x838df801), WTC(0x837bf801), WTC(0x8369e781), WTC(0x8357c701), WTC(0x83459881), WTC(0x83335c81), WTC(0x83211501), WTC(0x830ec081), -WTC(0x82fc5f01), WTC(0x82e9ef01), WTC(0x82d77201), WTC(0x82c4e801), WTC(0x82b25301), WTC(0x829fb401), WTC(0x828d0b01), WTC(0x827a5801), -WTC(0x82679901), WTC(0x8254cf01), WTC(0x8241fa01), WTC(0x822f1b01), WTC(0x821c3401), WTC(0x82094581), WTC(0x81f64f01), WTC(0x81e34f81), -WTC(0x81d04681), WTC(0x81bd3401), WTC(0x81aa1981), WTC(0x8196f781), WTC(0x8183cf81), WTC(0x8170a181), WTC(0x815d6c01), WTC(0x814a2f81), -WTC(0x8136ea01), WTC(0x81239d81), WTC(0x81104a01), WTC(0x80fcf181), WTC(0x80e99401), WTC(0x80d63101), WTC(0x80c2c781), WTC(0x80af5701), -WTC(0x809bdf01), WTC(0x80886081), WTC(0x8074dc01), WTC(0x80615281), WTC(0x804dc481), WTC(0x803a3381), WTC(0x80269f81), WTC(0x80130981), -WTC(0x0a608220), WTC(0x0a8ee7d0), WTC(0x0abe35c0), WTC(0x0aee5de0), WTC(0x0b1f5230), WTC(0x0b5104a0), WTC(0x0b836720), WTC(0x0bb66bb0), -WTC(0x0bea0440), WTC(0x0c1e22c0), WTC(0x0c52ba70), WTC(0x0c87ca90), WTC(0x0cbd5ba0), WTC(0x0cf375e0), WTC(0x0d2a1f50), WTC(0x0d615480), -WTC(0x0d990e40), WTC(0x0dd14500), WTC(0x0e09f730), WTC(0x0e432e90), WTC(0x0e7cf790), WTC(0x0eb75e50), WTC(0x0ef26430), WTC(0x0f2dfd70), -WTC(0x0f6a1d70), WTC(0x0fa6b7e0), WTC(0x0fe3c3d0), WTC(0x10213ac0), WTC(0x105f1640), WTC(0x109d4f20), WTC(0x10dbdb80), WTC(0x111ab0c0), -WTC(0x1159c360), WTC(0x11990fc0), WTC(0x11d8a060), WTC(0x121882c0), WTC(0x1258c480), WTC(0x12995a40), WTC(0x12da1b00), WTC(0x131adb60), -WTC(0x135b70c0), WTC(0x139bb680), WTC(0x13db8c00), WTC(0x141ad080), WTC(0x14596460), WTC(0x149729e0), WTC(0x14d404e0), WTC(0x150fd8e0), -WTC(0x154a88c0), WTC(0x1583f5e0), WTC(0x15bc0120), WTC(0x15f28ba0), WTC(0x162779a0), WTC(0x165ab300), WTC(0x168c2040), WTC(0x16bbaa80), -WTC(0x16e94120), WTC(0x1714d9e0), WTC(0x173e6440), WTC(0x17660680), WTC(0x178ca020), WTC(0x17b36400), WTC(0x17db84e0), WTC(0x1805d920), -WTC(0x18328400), WTC(0x18617cc0), WTC(0x1892bfa0), WTC(0x18c64540), WTC(0x18fc0400), WTC(0x1933f140), WTC(0x196e0320), WTC(0x19aa2fc0), -WTC(0x19e86d80), WTC(0x1a28b2e0), WTC(0x1a6af700), WTC(0x1aaf3320), WTC(0x1af56180), WTC(0x1b3d7ce0), WTC(0x1b877c40), WTC(0x1bd350c0), -WTC(0x1c20ea40), WTC(0x1c703840), WTC(0x1cc13860), WTC(0x1d13f760), WTC(0x1d688420), WTC(0x1dbeed40), WTC(0x1e174660), WTC(0x1e71a640), -WTC(0x1ece2400), WTC(0x1f2cd220), WTC(0x1f8db3c0), WTC(0x1ff0c3e0), WTC(0x20560080), WTC(0x20bd46c0), WTC(0x21263400), WTC(0x21905740), -WTC(0x21fb4100), WTC(0x2266ba80), WTC(0x22d2d140), WTC(0x233f9780), WTC(0x23ad25c0), WTC(0x241bc800), WTC(0x248bf040), WTC(0x24fe1380), -WTC(0x25728180), WTC(0x25e90a00), WTC(0x26614080), WTC(0x26dabdc0), WTC(0x27552540), WTC(0x27d03200), WTC(0x284ba580), WTC(0x28c740c0), -WTC(0x29431f80), WTC(0x29bfc9c0), WTC(0x2a3dd080), WTC(0x2abdc000), WTC(0x2b3ffd00), WTC(0x2bc4cd80), WTC(0x2c4c7d40), WTC(0x2cd72ec0), -WTC(0x2d647f80), WTC(0x2df3cd80), WTC(0x2e847d80), WTC(0x2f15ea40), WTC(0x2fa760c0), WTC(0x30382b80), 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-WTC(0x538eb47f), WTC(0x542560ff), WTC(0x54bc7b7f), WTC(0x5553a8ff), WTC(0x55ea35ff), WTC(0x567f66ff), WTC(0x5712897f), WTC(0x57a33a7f), -WTC(0x583152ff), WTC(0x58bca5ff), WTC(0x594530ff), WTC(0x59cb79ff), WTC(0x5a5047ff), WTC(0x5ad45eff), WTC(0x5b584e7f), WTC(0x5bdc417f), -WTC(0x5c60487f), WTC(0x5ce476ff), WTC(0x5d68c47f), WTC(0x5ded06ff), WTC(0x5e7111ff), WTC(0x5ef4b5ff), WTC(0x5f77a17f), WTC(0x5ff96aff), -WTC(0x6079a7ff), WTC(0x60f7f7ff), WTC(0x617417ff), WTC(0x61edd87f), WTC(0x6264ffff), WTC(0x62d9a6ff), WTC(0x634c817f), WTC(0x63be657f), -WTC(0x6430277f), WTC(0x64a2247f), WTC(0x65142bff), WTC(0x6586027f), WTC(0x65f7697f), WTC(0x666801ff), WTC(0x66d756ff), WTC(0x6744f0ff), -WTC(0x67b0787f), WTC(0x681a077f), WTC(0x6881ebff), WTC(0x68e8707f), WTC(0x694dceff), WTC(0x69b21e7f), WTC(0x6a156cff), WTC(0x6a77ca7f), -WTC(0x6ad9377f), WTC(0x6b39a4ff), WTC(0x6b9901ff), WTC(0x6bf73cff), WTC(0x6c54457f), WTC(0x6cb00aff), WTC(0x6d0a7bff), WTC(0x6d6387ff), -WTC(0xae2cbe01), WTC(0xaf526d01), WTC(0xb0751201), WTC(0xb194da81), WTC(0xb2b1f401), WTC(0xb3cc8d01), WTC(0xb4e4d201), WTC(0xb5faf101), -WTC(0xb70f1881), WTC(0xb8217301), WTC(0xb9321181), WTC(0xba40ee01), WTC(0xbb4e0201), WTC(0xbc594781), WTC(0xbd62b881), WTC(0xbe6a5181), -WTC(0xbf700d01), WTC(0xc073e4c0), WTC(0xc175d240), WTC(0xc275cc80), WTC(0xc373cb80), WTC(0xc46fca00), WTC(0xc569c600), WTC(0xc661bdc0), -WTC(0xc757af80), WTC(0xc84b9840), WTC(0xc93d7300), WTC(0xca2d3a40), WTC(0xcb1aea40), WTC(0xcc068280), WTC(0xccf00480), WTC(0xcdd77200), -WTC(0xcebccb40), WTC(0xcfa00d80), WTC(0xd0813540), WTC(0xd1603f00), WTC(0xd23d2980), WTC(0xd317f7c0), WTC(0xd3f0ac40), WTC(0xd4c74980), -WTC(0xd59bcf80), WTC(0xd66e3b00), WTC(0xd73e8900), WTC(0xd80cb740), WTC(0xd8d8c7c0), WTC(0xd9a2be00), WTC(0xda6a9e40), WTC(0xdb306a40), -WTC(0xdbf42080), WTC(0xdcb5be80), WTC(0xdd754140), WTC(0xde32a900), WTC(0xdeedf9c0), WTC(0xdfa737c0), WTC(0xe05e6740), WTC(0xe1138900), -WTC(0xe1c69ac0), WTC(0xe2779a40), WTC(0xe3268680), WTC(0xe3d36260), WTC(0xe47e33a0), WTC(0xe526ff80), WTC(0xe5cdc960), WTC(0xe6729100), -WTC(0xe7155460), WTC(0xe7b611c0), WTC(0xe854ca20), WTC(0xe8f18180), WTC(0xe98c3ca0), WTC(0xea24ffe0), WTC(0xeabbcb20), WTC(0xeb509b60), -WTC(0xebe36d00), WTC(0xec743e00), WTC(0xed0310e0), WTC(0xed8feaa0), WTC(0xee1ad060), WTC(0xeea3c640), WTC(0xef2acd60), WTC(0xefafe6a0), -WTC(0xf03312f0), WTC(0xf0b45800), WTC(0xf133c230), WTC(0xf1b15ef0), WTC(0xf22d3af0), WTC(0xf2a75c80), WTC(0xf31fc460), WTC(0xf39673b0), -WTC(0xf40b6a00), WTC(0xf47ea230), WTC(0xf4f01450), WTC(0xf55fb930), WTC(0xf5cd84c0), WTC(0xf6396090), WTC(0xf6a333e0), WTC(0xf70ae540), -WTC(0xf7707260), WTC(0xf7d3f720), WTC(0xf83592f0), WTC(0xf8956450), WTC(0xf8f38120), WTC(0xf94ff7c8), WTC(0xf9aad740), WTC(0xfa042920), -WTC(0xfa5be110), WTC(0xfab1e778), WTC(0xfb062478), WTC(0xfb588d78), WTC(0xfba93530), WTC(0xfbf836c8), WTC(0xfc45ace0), WTC(0xfc91a294), -WTC(0xfcdc0e5c), WTC(0xfd24e438), WTC(0xfd6c17dc), WTC(0xfdb19758), WTC(0xfdf54c3c), WTC(0xfe371ef8), WTC(0xfe7701aa), WTC(0xfeb50d62), -WTC(0xfef1700a), WTC(0xff2c5574), WTC(0xff65ee7b), WTC(0xff9e75de), WTC(0xffd62863), WTC(0x000d4401), WTC(0x0043d345), WTC(0x00799cd0), -WTC(0x00ae5f49), WTC(0x00e1d7a4), WTC(0x0113a6f2), WTC(0x0143575c), WTC(0x01707024), WTC(0x019a9346), WTC(0x01c1cf08), WTC(0x01e66c12), -WTC(0x0208ac48), WTC(0x0228e868), WTC(0x0247a6c8), WTC(0x02657aa0), WTC(0x0282f710), WTC(0x02a07e50), WTC(0x02be31c0), WTC(0x02dc2b30), -WTC(0x02fa7f34), WTC(0x0318fb10), WTC(0x03372fdc), WTC(0x0354ae54), WTC(0x03710d18), WTC(0x038bfdb4), WTC(0x03a54084), WTC(0x03bc92b8), -WTC(0x03d1c710), WTC(0x03e4dd20), WTC(0x03f5e25c), WTC(0x0404e218), WTC(0x0411fc30), WTC(0x041d6b30), WTC(0x04276cd0), WTC(0x04303e00), -WTC(0x04381528), WTC(0x043f2310), WTC(0x04459908), WTC(0x044ba430), WTC(0x045161f8), WTC(0x0456e6f8), WTC(0x045c49a8), WTC(0x046192f8), -WTC(0x0466af40), WTC(0x046b8240), WTC(0x046ff0d8), WTC(0x0473de18), WTC(0x04772b58), WTC(0x0479b9a0), WTC(0x047b6a30), WTC(0x047c2088), -WTC(0x047bc230), WTC(0x047a3418), WTC(0x04776098), WTC(0x04734790), WTC(0x046df4c0), WTC(0x04677220), WTC(0x045fd1b0), WTC(0x04573588), -WTC(0x044dc4b8), WTC(0x0443a5b8), WTC(0x04390160), WTC(0x042e0398), WTC(0x0422d8c0), WTC(0x0417aa30), WTC(0x040c7ce0), WTC(0x040136e0), -WTC(0x03f5beb0), WTC(0x03e9f8ec), WTC(0x03ddc484), WTC(0x03d0fd9c), WTC(0x03c37fa0), WTC(0x03b53014), WTC(0x03a60a18), WTC(0x03960f88), -WTC(0x03854110), WTC(0x0373ad9c), WTC(0x03617694), WTC(0x034ebf9c), WTC(0x033bab30), WTC(0x03284ef0), WTC(0x0314b598), WTC(0x0300ea54), -WTC(0x02ecf524), WTC(0x02d8d210), WTC(0x02c476ac), WTC(0x02afd940), WTC(0x029aee4c), WTC(0x0285a6f4), WTC(0x026ff398), WTC(0x0259c448), -WTC(0x024317cc), WTC(0x022c0084), WTC(0x02149310), WTC(0x01fce334), WTC(0x01e4fb24), WTC(0x01ccdd0a), WTC(0x01b48b20), WTC(0x019c077e), -WTC(0x01835432), WTC(0x016a733c), WTC(0x015166a6), WTC(0x0138302e), WTC(0x011ed0f6), WTC(0x010549f8), WTC(0x00eb9c25), WTC(0x00d1caa6), -WTC(0x00b7db94), WTC(0x009dd560), WTC(0x0083be75), WTC(0x00699d41), WTC(0x004f782f), WTC(0x003555ab), WTC(0x001b3c21), WTC(0x000131fe), -WTC(0xd61cfc40), WTC(0xd5acb340), WTC(0xd53d4400), WTC(0xd4cea6c0), WTC(0xd460d440), WTC(0xd3f3c440), WTC(0xd3876f80), WTC(0xd31bce40), -WTC(0xd2b0d900), WTC(0xd2468980), WTC(0xd1dcef00), WTC(0xd17429c0), WTC(0xd10c5b80), WTC(0xd0a59b80), WTC(0xd03fd780), WTC(0xcfdae780), -WTC(0xcf76a380), WTC(0xcf12fac0), WTC(0xceb01100), WTC(0xce4e18c0), WTC(0xcded4440), WTC(0xcd8d9a40), WTC(0xcd2ee800), WTC(0xccd0f440), -WTC(0xcc738780), WTC(0xcc167d40), WTC(0xcbb9c180), WTC(0xcb5d4040), WTC(0xcb00e240), WTC(0xcaa48000), WTC(0xca47eac0), WTC(0xc9eaf1c0), -WTC(0xc98d8100), WTC(0xc92fc580), WTC(0xc8d1fc80), WTC(0xc8746480), WTC(0xc816dc40), WTC(0xc7b8c280), WTC(0xc7596800), WTC(0xc6f81f80), -WTC(0xc6945740), WTC(0xc62d93c0), WTC(0xc5c358c0), WTC(0xc5552b80), WTC(0xc4e29240), WTC(0xc46b1440), WTC(0xc3ee3840), WTC(0xc36b8500), -WTC(0xc2e28040), WTC(0xc252ae80), WTC(0xc1bb9540), WTC(0xc11cc200), WTC(0xc075cf00), WTC(0xbfc65781), WTC(0xbf0df881), WTC(0xbe4c6f01), -WTC(0xbd819401), WTC(0xbcad2d01), WTC(0xbbcfb981), WTC(0xbaeca681), WTC(0xba08e781), WTC(0xb9297081), WTC(0xb851e081), WTC(0xb782ed01), -WTC(0xb6bc6a81), WTC(0xb5fe4981), WTC(0xb5487281), WTC(0xb49ad081), WTC(0xb3f54d81), WTC(0xb357d401), WTC(0xb2c24e01), WTC(0xb234a681), -WTC(0xb1aec701), WTC(0xb1309b01), WTC(0xb0ba0c01), WTC(0xb04b0481), WTC(0xafe36f01), WTC(0xaf833601), WTC(0xaf2a4381), WTC(0xaed88201), -WTC(0xae8ddb81), WTC(0xae4a3b81), WTC(0xae0d8b01), WTC(0xadd7b581), WTC(0xada8a481), WTC(0xad804281), WTC(0xad5e7a81), WTC(0xad433601), -WTC(0xad2e6001), WTC(0xad1fe281), WTC(0xad17a801), WTC(0xad159a81), WTC(0xad19a501), WTC(0xad23b101), WTC(0xad33aa01), WTC(0xad497981), -WTC(0xad650a01), WTC(0xad864601), WTC(0xadad1781), WTC(0xadd96981), WTC(0xae0b2601), WTC(0xae423781), WTC(0xae7e8801), WTC(0xaec00201), -WTC(0xaf069081), WTC(0xaf521c81), WTC(0xafa29201), WTC(0xaff7da01), WTC(0xb051df01), WTC(0xb0b08c81), WTC(0xb113cb81), WTC(0xb17b8701), -WTC(0xb1e7a981), WTC(0xb2581d81), WTC(0xb2cccc81), WTC(0xb345a181), WTC(0xb3c28701), WTC(0xb4436681), WTC(0xb4c82b81), WTC(0xb550bf81), -WTC(0xb5dd0d01), WTC(0xb66cff01), WTC(0xb7007f01), WTC(0xb7977781), WTC(0xb831d381), WTC(0xb8cf7d01), WTC(0xb9705e01), WTC(0xba146101), -WTC(0xbabb7081), WTC(0xbb657781), WTC(0xbc125f01), WTC(0xbcc21281), WTC(0xbd747b81), WTC(0xbe298581), WTC(0xbee11981), WTC(0xbf9b2301), -WTC(0xc0578b80), WTC(0xc1163dc0), WTC(0xc1d72400), WTC(0xc29a28c0), WTC(0xc35f3640), WTC(0xc42636c0), WTC(0xc4ef1500), WTC(0xc5b9bb00), -WTC(0xc6861340), WTC(0xc7540840), WTC(0xc8238400), WTC(0xc8f47100), WTC(0xc9c6b9c0), WTC(0xca9a4840), WTC(0xcb6f0780), WTC(0xcc44e140), -WTC(0xcd1bc000), WTC(0xcdf38e00), WTC(0xcecc3600), WTC(0xcfa5a240), WTC(0xd07fbcc0), WTC(0xd15a7040), WTC(0xd235a6c0), WTC(0xd3114b00), -WTC(0xd3ed4740), WTC(0xd4c98580), WTC(0xd5a5f080), WTC(0xd6827280), WTC(0xd75ef600), WTC(0xd83b6500), WTC(0xd917aa00), WTC(0xd9f3af80), -WTC(0xdacf5fc0), WTC(0xdbaaa540), WTC(0xdc856a00), WTC(0xdd5f98c0), WTC(0xde391bc0), WTC(0xdf11dd40), WTC(0xdfe9c780), WTC(0xe0c0c540), -WTC(0xe196c080), WTC(0xe26ba3c0), WTC(0xe33f5960), WTC(0xe411cba0), WTC(0xe4e2e500), WTC(0xe5b28fc0), WTC(0xe680b640), WTC(0xe74d42e0), -WTC(0xe8181fe0), WTC(0xe8e137e0), WTC(0xe9a87500), WTC(0xea6dc1a0), WTC(0xeb310820), WTC(0xebf23300), WTC(0xecb12c60), WTC(0xed6ddee0), -WTC(0xee2834a0), WTC(0xeee01800), WTC(0xef957380), WTC(0xf0483160), WTC(0xf0f83c00), WTC(0xf1a57db0), WTC(0xf24fe0f0), WTC(0xf2f74ff0), -WTC(0xf39bb530), WTC(0xf43cfaf0), WTC(0xf4db0b90), WTC(0xf575d180), WTC(0xf60d3700), WTC(0xf6a12680), WTC(0xf7318a50), WTC(0xf7be4cc0), -WTC(0xf8475850), WTC(0xf8cc9738), WTC(0xf94df3e0), WTC(0xf9cb58a8), WTC(0xfa44afe0), WTC(0xfab9e3e8), WTC(0xfb2adf20), WTC(0xfb978be8), -WTC(0xfbffd488), WTC(0xfc63a370), WTC(0xfcc2e2f0), WTC(0xfd1d7d64), WTC(0xfd735d2c), WTC(0xfdc46c9c), WTC(0xfe109618), WTC(0xfe57c3f4), -WTC(0xfe99e090), WTC(0xfed6d644), WTC(0xff0e8f6e), WTC(0xff40f667), WTC(0xff6df58c), WTC(0xff957738), WTC(0xffb765c5), WTC(0xffd3ab90), -WTC(0xffea32f4), WTC(0xfffae64c), WTC(0x0005aff3), WTC(0x000a7a44), WTC(0x00092f9c), WTC(0x0001ba54), WTC(0xfff404ca), WTC(0xffdff957) -}; - - - - -/* - * TNS_MAX_BANDS - * entry for each sampling rate - * 1 long window - * 2 SHORT window -*/ -const UCHAR tns_max_bands_tbl[13][2] = -{ - { 31, 9 }, /* 96000 */ - { 31, 9 }, /* 88200 */ - { 34, 10 }, /* 64000 */ - { 40, 14 }, /* 48000 */ - { 42, 14 }, /* 44100 */ - { 51, 14 }, /* 32000 */ - { 46, 14 }, /* 24000 */ - { 46, 14 }, /* 22050 */ - { 42, 14 }, /* 16000 */ - { 42, 14 }, /* 12000 */ - { 42, 14 }, /* 11025 */ - { 39, 14 }, /* 8000 */ - { 39, 14 }, /* 7350 */ -}; - -/* TNS_MAX_BANDS for low delay. The array index is the sampleRateIndex */ -const UCHAR tns_max_bands_tbl_480[13] = { - 31, /* 96000 */ - 31, /* 88200 */ - 31, /* 64000 */ - 31, /* 48000 */ - 32, /* 44100 */ - 37, /* 32000 */ - 30, /* 24000 */ - 30, /* 22050 */ - 30, /* 16000 */ - 30, /* 12000 */ - 30, /* 11025 */ - 30, /* 8000 */ - 30 /* 7350 */ -}; -const UCHAR tns_max_bands_tbl_512[13] = { - 31, /* 96000 */ - 31, /* 88200 */ - 31, /* 64000 */ - 31, /* 48000 */ - 32, /* 44100 */ - 37, /* 32000 */ - 31, /* 24000 */ - 31, /* 22050 */ - 31, /* 16000 */ - 31, /* 12000 */ - 31, /* 11025 */ - 31, /* 8000 */ - 31 /* 7350 */ -}; - -#define TCC(x) (FIXP_DBL(x)) - -const FIXP_TCC FDKaacDec_tnsCoeff3 [8] = -{ - TCC(0x81f1d1d4), TCC(0x9126146c), TCC(0xadb922c4), TCC(0xd438af1f), - TCC(0x00000000), TCC(0x3789809b), TCC(0x64130dd4), TCC(0x7cca7016) -}; -const FIXP_TCC FDKaacDec_tnsCoeff4 [16] = -{ - TCC(0x808bc842), TCC(0x84e2e58c), TCC(0x8d6b49d1), TCC(0x99da920a), - TCC(0xa9c45713), TCC(0xbc9ddeb9), TCC(0xd1c2d51b), TCC(0xe87ae53d), - TCC(0x00000000), TCC(0x1a9cd9b6), TCC(0x340ff254), TCC(0x4b3c8c29), - TCC(0x5f1f5ebb), TCC(0x6ed9ebba), TCC(0x79bc385f), TCC(0x7f4c7e5b) -}; - -/* MPEG like mapping (no change). */ -const UCHAR channelMappingTablePassthrough[8][8] = -{ - { 0, 1,255,255,255,255,255,255}, /* mono / PS */ - { 0, 1,255,255,255,255,255,255}, /* stereo */ - { 0, 1, 2,255,255,255,255,255}, /* 3ch */ - { 0, 1, 2, 3,255,255,255,255}, /* 4ch */ - { 0, 1, 2, 3, 4,255,255,255}, /* 5ch */ - { 0, 1, 2, 3, 4, 5,255,255}, /* 5.1ch */ - { 0, 1, 2, 3, 4, 5, 6, 7}, /* 7ch */ - { 0, 1, 2, 3, 4, 5, 6, 7} /* 7.1ch */ -}; - -/* WAV file like mapping (from MPEG mapping). */ -const UCHAR channelMappingTableWAV[8][8] = -{ - { 0, 1,255,255,255,255,255,255}, /* mono / PS */ - { 0, 1,255,255,255,255,255,255}, /* stereo */ - { 2, 0, 1,255,255,255,255,255}, /* 3ch */ - { 2, 0, 1, 3,255,255,255,255}, /* 4ch */ - { 2, 0, 1, 3, 4,255,255,255}, /* 5ch */ - { 2, 0, 1, 4, 5, 3,255,255}, /* 5.1ch */ - { 0, 1, 2, 3, 4, 5, 6, 7}, /* 7ch */ - { 2, 0, 1, 6, 7, 4, 5, 3} /* 7.1ch */ -}; - -/* Lookup tables for elements in ER bitstream */ -const MP4_ELEMENT_ID elementsTab[8][7] = -{ - {ID_SCE, ID_EXT, ID_END, ID_NONE, ID_NONE,ID_NONE,ID_NONE }, /* 1 channel */ - {ID_CPE, ID_EXT, ID_END, ID_NONE, ID_NONE,ID_NONE,ID_NONE } /* 2 channels */ - , - {ID_SCE, ID_CPE, ID_EXT, ID_END, ID_NONE,ID_NONE,ID_NONE }, /* 3 channels */ - {ID_SCE, ID_CPE, ID_SCE, ID_EXT, ID_END, ID_NONE,ID_NONE }, /* 4 channels */ - {ID_SCE, ID_CPE, ID_CPE, ID_EXT, ID_END, ID_NONE,ID_NONE }, /* 5 channels */ - {ID_SCE, ID_CPE, ID_CPE, ID_LFE, ID_EXT, ID_END, ID_NONE }, /* 6 channels */ - {ID_SCE, ID_CPE, ID_CPE, ID_CPE, ID_LFE, ID_EXT, ID_END} /* 8 channels */ -}; - -/*! Random sign bit used for concealment -*/ -const USHORT randomSign[AAC_NF_NO_RANDOM_VAL/16] = { -/* - sign bits of FDK_sbrDecoder_sbr_randomPhase[] entries: - LSB ........... MSB -> MSB ... LSB -*/ -/* 1001 0111 0011 1100 -> */ 0x3ce9, -/* 0100 0111 0111 1011 -> */ 0xdee2, -/* 0001 1100 1110 1011 -> */ 0xd738, -/* 0001 0011 0110 1001 -> */ 0x96c8, -/* 0101 0011 1101 0000 -> */ 0x0bca, -/* 0001 0001 1111 0100 -> */ 0x2f88, -/* 1110 1100 1110 1101 -> */ 0xb737, -/* 0010 1010 1011 1001 -> */ 0x9d54, -/* 0111 1100 0110 1010 -> */ 0x563e, -/* 1101 0111 0010 0101 -> */ 0xa4eb, -/* 0001 0101 1011 1100 -> */ 0x3da8, -/* 0101 0111 1001 1011 -> */ 0xd9ea, -/* 1101 0100 0101 0101 -> */ 0xaa2b, -/* 1000 1001 0100 0011 -> */ 0xc291, -/* 1100 1111 1010 1100 -> */ 0x35f3, -/* 1100 1010 1110 0010 -> */ 0x4753, -/* 0110 0001 1010 1000 -> */ 0x1586, -/* 0011 0101 1111 1100 -> */ 0x3fac, -/* 0001 0110 1010 0001 -> */ 0x8568, -/* 0010 1101 0111 0010 -> */ 0x4eb4, -/* 1101 1010 0100 1001 -> */ 0x925b, -/* 1100 1001 0000 1110 -> */ 0x7093, -/* 1000 1100 0110 1010 -> */ 0x5631, -/* 0000 1000 0110 1101 -> */ 0xb610, -/* 1000 0001 1111 1011 -> */ 0xdf81, -/* 1111 0011 0100 0111 -> */ 0xe2cf, -/* 1000 0001 0010 1010 -> */ 0x5481, -/* 1101 0101 1100 1111 -> */ 0xf3ab, -/* 0110 0001 0110 1000 -> */ 0x1686, -/* 0011 0011 1100 0110 -> */ 0x63cc, -/* 0011 0111 0101 0110 -> */ 0x6aec, -/* 1011 0001 1010 0010 -> */ 0x458d -}; - diff --git a/libAACdec/src/aac_rom.h b/libAACdec/src/aac_rom.h deleted file mode 100644 index 536d184..0000000 --- a/libAACdec/src/aac_rom.h +++ /dev/null @@ -1,187 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - Description: Definition of constant tables - -******************************************************************************/ - -#ifndef AAC_ROM_H -#define AAC_ROM_H - -#include "common_fix.h" -#include "FDK_audio.h" -#include "aacdec_hcr_types.h" -#include "aacdec_hcrs.h" - -#define AAC_NF_NO_RANDOM_VAL 512 /*!< Size of random number array for noise floor */ - -#define INV_QUANT_TABLESIZE 256 - -extern const FIXP_DBL InverseQuantTable [INV_QUANT_TABLESIZE + 1] ; -extern const FIXP_DBL MantissaTable [4][14] ; -extern const SCHAR ExponentTable [4][14] ; - -#define NUM_LD_COEF_512 1536 -#define NUM_LD_COEF_480 1440 -/* Window table partition exponents. */ -#define WTS0 (1) -#define WTS1 (0) -#define WTS2 (-2) -extern const FIXP_WTB LowDelaySynthesis512[1536]; -extern const FIXP_WTB LowDelaySynthesis480[1440]; - -typedef struct { - const SHORT *sfbOffsetLong; - const SHORT *sfbOffsetShort; - UCHAR numberOfSfbLong; - UCHAR numberOfSfbShort; -} SFB_INFO; - -extern const SFB_INFO sfbOffsetTables[5][16]; - -/* Huffman tables */ -enum { - HuffmanBits = 2, - HuffmanEntries = (1 << HuffmanBits) -}; - -typedef struct -{ - const USHORT (*CodeBook)[HuffmanEntries]; - UCHAR Dimension; - UCHAR numBits; - UCHAR Offset; -} CodeBookDescription; - -extern const CodeBookDescription AACcodeBookDescriptionTable[13]; -extern const CodeBookDescription AACcodeBookDescriptionSCL; - - -extern const STATEFUNC aStateConstant2State[]; - -extern const SCHAR aCodebook2StartInt[]; - -extern const UCHAR aMinOfCbPair[]; -extern const UCHAR aMaxOfCbPair[]; - -extern const UCHAR aMaxCwLen[]; -extern const UCHAR aDimCb[]; -extern const UCHAR aDimCbShift[]; -extern const UCHAR aSignCb[]; -extern const UCHAR aCbPriority[]; - -extern const UINT *aHuffTable[]; -extern const SCHAR *aQuantTable[]; - -extern const USHORT aLargestAbsoluteValue[]; - -extern const UINT aHuffTreeRvlcEscape[]; -extern const UINT aHuffTreeRvlCodewds[]; - - -extern const UCHAR tns_max_bands_tbl[13][2]; - -extern const UCHAR tns_max_bands_tbl_480[13]; -extern const UCHAR tns_max_bands_tbl_512[13]; - -#define FIXP_TCC FIXP_DBL - -extern const FIXP_TCC FDKaacDec_tnsCoeff3[8]; -extern const FIXP_TCC FDKaacDec_tnsCoeff4[16]; - -extern const USHORT randomSign[AAC_NF_NO_RANDOM_VAL/16]; - -extern const FIXP_DBL pow2_div24minus1[47]; -extern const int offsetTab[2][16]; - -/* Channel mapping indices for time domain I/O. First dimension is channel count-1. */ -extern const UCHAR channelMappingTablePassthrough[8][8]; -extern const UCHAR channelMappingTableWAV[8][8]; - -/* Lookup tables for elements in ER bitstream */ -extern const MP4_ELEMENT_ID elementsTab[8][7]; - -#endif /* #ifndef AAC_ROM_H */ diff --git a/libAACdec/src/aacdec_drc.cpp b/libAACdec/src/aacdec_drc.cpp deleted file mode 100644 index 2666454..0000000 --- a/libAACdec/src/aacdec_drc.cpp +++ /dev/null @@ -1,1114 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Christian Griebel - Description: Dynamic range control (DRC) decoder tool for AAC - -******************************************************************************/ - -#include "aacdec_drc.h" - - -#include "channelinfo.h" -#include "aac_rom.h" - - #include "sbrdecoder.h" - -/* - * Dynamic Range Control - */ - -/* For parameter conversion */ -#define DRC_PARAMETER_BITS ( 7 ) -#define DRC_MAX_QUANT_STEPS ( 1<<DRC_PARAMETER_BITS ) -#define DRC_MAX_QUANT_FACTOR ( DRC_MAX_QUANT_STEPS-1 ) -#define DRC_PARAM_QUANT_STEP ( FL2FXCONST_DBL(1.0f/(float)DRC_MAX_QUANT_FACTOR) ) -#define DRC_PARAM_SCALE ( 1 ) - -#define MAX_REFERENCE_LEVEL ( 127 ) - - #define DVB_ANC_DATA_SYNC_BYTE ( 0xBC ) /* DVB ancillary data sync byte. */ - -/*! - \brief Initialize DRC information - - \self Handle of DRC info - - \return none -*/ -void aacDecoder_drcInit ( - HANDLE_AAC_DRC self ) -{ - CDrcParams *pParams; - - if (self == NULL) { - return; - } - - /* init control fields */ - self->enable = 0; - self->numThreads = 0; - self->digitalNorm = 0; - - /* init params */ - pParams = &self->params; - pParams->bsDelayEnable = 0; - pParams->cut = FL2FXCONST_DBL(0.0f); - pParams->usrCut = FL2FXCONST_DBL(0.0f); - pParams->boost = FL2FXCONST_DBL(0.0f); - pParams->usrBoost = FL2FXCONST_DBL(0.0f); - pParams->targetRefLevel = AACDEC_DRC_DEFAULT_REF_LEVEL; - pParams->expiryFrame = AACDEC_DRC_DFLT_EXPIRY_FRAMES; - pParams->applyHeavyCompression = 0; - - /* initial program ref level = target ref level */ - self->progRefLevel = pParams->targetRefLevel; -} - - -/*! - \brief Initialize DRC control data for one channel - - \self Handle of DRC info - - \return none -*/ -void aacDecoder_drcInitChannelData ( - CDrcChannelData *pDrcChData ) -{ - if (pDrcChData != NULL) { - pDrcChData->expiryCount = 0; - pDrcChData->numBands = 1; - pDrcChData->bandTop[0] = (1024 >> 2) - 1; - pDrcChData->drcValue[0] = 0; - pDrcChData->drcInterpolationScheme = 0; - pDrcChData->drcDataType = UNKNOWN_PAYLOAD; - } -} - - -/*! - \brief Set one single DRC parameter - - \self Handle of DRC info. - \param Parameter to be set. - \value Value to be set. - - \return an error code. -*/ -AAC_DECODER_ERROR aacDecoder_drcSetParam ( - HANDLE_AAC_DRC self, - AACDEC_DRC_PARAM param, - INT value ) -{ - AAC_DECODER_ERROR ErrorStatus = AAC_DEC_OK; - - switch (param) - { - case DRC_CUT_SCALE: - /* set attenuation scale factor */ - if ( (value < 0) - || (value > DRC_MAX_QUANT_FACTOR) ) { - return AAC_DEC_SET_PARAM_FAIL; - } - if (self == NULL) { - return AAC_DEC_INVALID_HANDLE; - } - self->params.usrCut = (FIXP_DBL)((INT)(DRC_PARAM_QUANT_STEP>>DRC_PARAM_SCALE) * (INT)value); - if (self->params.applyHeavyCompression == 0) - self->params.cut = self->params.usrCut; - break; - case DRC_BOOST_SCALE: - /* set boost factor */ - if ( (value < 0) - || (value > DRC_MAX_QUANT_FACTOR) ) { - return AAC_DEC_SET_PARAM_FAIL; - } - if (self == NULL) { - return AAC_DEC_INVALID_HANDLE; - } - self->params.usrBoost = (FIXP_DBL)((INT)(DRC_PARAM_QUANT_STEP>>DRC_PARAM_SCALE) * (INT)value); - if (self->params.applyHeavyCompression == 0) - self->params.boost = self->params.usrBoost; - break; - case TARGET_REF_LEVEL: - if ( value > MAX_REFERENCE_LEVEL - || value < -MAX_REFERENCE_LEVEL ) { - return AAC_DEC_SET_PARAM_FAIL; - } - if (self == NULL) { - return AAC_DEC_INVALID_HANDLE; - } - if (value < 0) { - self->digitalNorm = 0; - } - else { - /* ref_level must be between 0 and MAX_REFERENCE_LEVEL, inclusive */ - self->digitalNorm = 1; - if (self->params.targetRefLevel != (SCHAR)value) { - self->params.targetRefLevel = (SCHAR)value; - self->progRefLevel = (SCHAR)value; /* Always set the program reference level equal to the - target level according to 4.5.2.7.3 of ISO/IEC 14496-3. */ - } - } - break; - case APPLY_HEAVY_COMPRESSION: - if (value < 0 || value > 1) { - return AAC_DEC_SET_PARAM_FAIL; - } - if (self == NULL) { - return AAC_DEC_INVALID_HANDLE; - } - if (self->params.applyHeavyCompression != (UCHAR)value) { - if (value == 1) { - /* Disable scaling of DRC values by setting the max values */ - self->params.boost = FL2FXCONST_DBL(1.0f/(float)(1<<DRC_PARAM_SCALE)); - self->params.cut = FL2FXCONST_DBL(1.0f/(float)(1<<DRC_PARAM_SCALE)); - } else { - /* Restore the user params */ - self->params.boost = self->params.usrBoost; - self->params.cut = self->params.usrCut; - } - /* Store new parameter value */ - self->params.applyHeavyCompression = (UCHAR)value; - } - break; - case DRC_BS_DELAY: - if (value < 0 || value > 1) { - return AAC_DEC_SET_PARAM_FAIL; - } - if (self == NULL) { - return AAC_DEC_INVALID_HANDLE; - } - self->params.bsDelayEnable = value; - break; - case DRC_DATA_EXPIRY_FRAME: - if (self == NULL) { - return AAC_DEC_INVALID_HANDLE; - } - self->params.expiryFrame = (UINT)value; - break; - default: - return AAC_DEC_SET_PARAM_FAIL; - } /* switch(param) */ - - /* switch on/off processing */ - self->enable = ( (self->params.boost > (FIXP_DBL)0) - || (self->params.cut > (FIXP_DBL)0) - || (self->params.applyHeavyCompression != 0) - || (self->digitalNorm == 1) ); - - - return ErrorStatus; -} - - -static int parseExcludedChannels( UINT *excludedChnsMask, - HANDLE_FDK_BITSTREAM bs ) -{ - UINT excludeMask = 0; - UINT i, j; - int bitCnt = 9; - - for (i = 0, j = 1; i < 7; i++, j<<=1) { - if (FDKreadBits(bs,1)) { - excludeMask |= j; - } - } - - /* additional_excluded_chns */ - while (FDKreadBits(bs,1)) { - for (i = 0; i < 7; i++, j<<=1) { - if (FDKreadBits(bs,1)) { - excludeMask |= j; - } - } - bitCnt += 9; - FDK_ASSERT(j < (UINT)-1); - } - - *excludedChnsMask = excludeMask; - - return (bitCnt); -} - - -/*! - \brief Save DRC payload bitstream position - - \self Handle of DRC info - \bs Handle of FDK bitstream - - \return The number of DRC payload bits -*/ -int aacDecoder_drcMarkPayload ( - HANDLE_AAC_DRC self, - HANDLE_FDK_BITSTREAM bs, - AACDEC_DRC_PAYLOAD_TYPE type ) -{ - UINT bsStartPos; - int i, numBands = 1, bitCnt = 0; - - if (self == NULL) { - return 0; - } - - bsStartPos = FDKgetValidBits(bs); - - switch (type) { - case MPEG_DRC_EXT_DATA: - { - bitCnt = 4; - - if (FDKreadBits(bs,1)) { /* pce_tag_present */ - FDKreadBits(bs,8); /* pce_instance_tag + drc_tag_reserved_bits */ - bitCnt+=8; - } - - if (FDKreadBits(bs,1)) { /* excluded_chns_present */ - FDKreadBits(bs,7); /* exclude mask [0..7] */ - bitCnt+=8; - while (FDKreadBits(bs,1)) { /* additional_excluded_chns */ - FDKreadBits(bs,7); /* exclude mask [x..y] */ - bitCnt+=8; - } - } - - if (FDKreadBits(bs,1)) { /* drc_bands_present */ - numBands += FDKreadBits(bs, 4); /* drc_band_incr */ - FDKreadBits(bs,4); /* reserved */ - bitCnt+=8; - for (i = 0; i < numBands; i++) { - FDKreadBits(bs,8); /* drc_band_top[i] */ - bitCnt+=8; - } - } - - if (FDKreadBits(bs,1)) { /* prog_ref_level_present */ - FDKreadBits(bs,8); /* prog_ref_level + prog_ref_level_reserved_bits */ - bitCnt+=8; - } - - for (i = 0; i < numBands; i++) { - FDKreadBits(bs,8); /* dyn_rng_sgn[i] + dyn_rng_ctl[i] */ - bitCnt+=8; - } - - if ( (self->numPayloads < MAX_DRC_THREADS) - && ((INT)FDKgetValidBits(bs) >= 0) ) - { - self->drcPayloadPosition[self->numPayloads++] = bsStartPos; - } - } - break; - - case DVB_DRC_ANC_DATA: - bitCnt += 8; - /* check sync word */ - if (FDKreadBits(bs, 8) == DVB_ANC_DATA_SYNC_BYTE) - { - int dmxLevelsPresent, compressionPresent; - int coarseGrainTcPresent, fineGrainTcPresent; - - /* bs_info field */ - FDKreadBits(bs, 8); /* mpeg_audio_type, dolby_surround_mode, presentation_mode */ - bitCnt+=8; - - /* Evaluate ancillary_data_status */ - FDKreadBits(bs, 3); /* reserved, set to 0 */ - dmxLevelsPresent = FDKreadBits(bs, 1); /* downmixing_levels_MPEG4_status */ - FDKreadBits(bs, 1); /* reserved, set to 0 */ - compressionPresent = FDKreadBits(bs, 1); /* audio_coding_mode_and_compression status */ - coarseGrainTcPresent = FDKreadBits(bs, 1); /* coarse_grain_timecode_status */ - fineGrainTcPresent = FDKreadBits(bs, 1); /* fine_grain_timecode_status */ - bitCnt+=8; - - /* MPEG4 downmixing levels */ - if (dmxLevelsPresent) { - FDKreadBits(bs, 8); /* downmixing_levels_MPEG4 */ - bitCnt+=8; - } - /* audio coding mode and compression status */ - if (compressionPresent) { - FDKreadBits(bs, 16); /* audio_coding_mode, Compression_value */ - bitCnt+=16; - } - /* coarse grain timecode */ - if (coarseGrainTcPresent) { - FDKreadBits(bs, 16); /* coarse_grain_timecode */ - bitCnt+=16; - } - /* fine grain timecode */ - if (fineGrainTcPresent) { - FDKreadBits(bs, 16); /* fine_grain_timecode */ - bitCnt+=16; - } - if ( !self->dvbAncDataAvailable - && ((INT)FDKgetValidBits(bs) >= 0) ) - { - self->dvbAncDataPosition = bsStartPos; - self->dvbAncDataAvailable = 1; - } - } - break; - - default: - break; - } - - return (bitCnt); -} - - -/*! - \brief Parse DRC parameters from bitstream - - \bs Handle of FDK bitstream (in) - \pDrcBs Pointer to DRC payload data container (out) - \payloadPosition Bitstream position of MPEG DRC data junk (in) - - \return Number of bits read (0 in case of a parse error) -*/ -static int aacDecoder_drcParse ( - HANDLE_FDK_BITSTREAM bs, - CDrcPayload *pDrcBs, - UINT payloadPosition ) -{ - int i, numBands, bitCnt = 4; - - /* Move to the beginning of the DRC payload field */ - FDKpushBiDirectional(bs, FDKgetValidBits(bs)-payloadPosition); - - /* pce_tag_present */ - if (FDKreadBits(bs,1)) - { - pDrcBs->pceInstanceTag = FDKreadBits(bs, 4); /* pce_instance_tag */ - /* only one program supported */ - FDKreadBits(bs, 4); /* drc_tag_reserved_bits */ - bitCnt += 8; - } else { - pDrcBs->pceInstanceTag = -1; /* not present */ - } - - if (FDKreadBits(bs,1)) { /* excluded_chns_present */ - /* get excluded_chn_mask */ - bitCnt += parseExcludedChannels(&pDrcBs->excludedChnsMask, bs); - } else { - pDrcBs->excludedChnsMask = 0; - } - - numBands = 1; - if (FDKreadBits(bs,1)) /* drc_bands_present */ - { - /* get band_incr */ - numBands += FDKreadBits(bs, 4); /* drc_band_incr */ - pDrcBs->channelData.drcInterpolationScheme = FDKreadBits(bs, 4); /* drc_interpolation_scheme */ - bitCnt += 8; - /* band_top */ - for (i = 0; i < numBands; i++) - { - pDrcBs->channelData.bandTop[i] = FDKreadBits(bs, 8); /* drc_band_top[i] */ - bitCnt += 8; - } - } - else { - pDrcBs->channelData.bandTop[0] = (1024 >> 2) - 1; /* ... comprising the whole spectrum. */; - } - - pDrcBs->channelData.numBands = numBands; - - if (FDKreadBits(bs,1)) /* prog_ref_level_present */ - { - pDrcBs->progRefLevel = FDKreadBits(bs, 7); /* prog_ref_level */ - FDKreadBits(bs, 1); /* prog_ref_level_reserved_bits */ - bitCnt += 8; - } else { - pDrcBs->progRefLevel = -1; - } - - for (i = 0; i < numBands; i++) - { - pDrcBs->channelData.drcValue[i] = FDKreadBits(bs, 1) << 7; /* dyn_rng_sgn[i] */ - pDrcBs->channelData.drcValue[i] |= FDKreadBits(bs, 7) & 0x7F; /* dyn_rng_ctl[i] */ - bitCnt += 8; - } - - /* Set DRC payload type */ - pDrcBs->channelData.drcDataType = MPEG_DRC_EXT_DATA; - - return (bitCnt); -} - - -/*! - \brief Parse heavy compression value transported in DSEs of DVB streams with MPEG-4 content. - - \bs Handle of FDK bitstream (in) - \pDrcBs Pointer to DRC payload data container (out) - \payloadPosition Bitstream position of DVB ancillary data junk - - \return Number of bits read (0 in case of a parse error) -*/ -#define DVB_COMPRESSION_SCALE ( 8 ) /* 48,164 dB */ - -static int aacDecoder_drcReadCompression ( - HANDLE_FDK_BITSTREAM bs, - CDrcPayload *pDrcBs, - UINT payloadPosition ) -{ - int bitCnt = 0; - int dmxLevelsPresent, compressionPresent; - int coarseGrainTcPresent, fineGrainTcPresent; - - /* Move to the beginning of the DRC payload field */ - FDKpushBiDirectional(bs, FDKgetValidBits(bs)-payloadPosition); - - /* Sanity checks */ - if ( FDKgetValidBits(bs) < 24 ) { - return 0; - } - - /* Check sync word */ - if (FDKreadBits(bs, 8) != DVB_ANC_DATA_SYNC_BYTE) { - return 0; - } - - /* Evaluate bs_info field */ - if (FDKreadBits(bs, 2) != 3) { /* mpeg_audio_type */ - /* No MPEG-4 audio data */ - return 0; - } - FDKreadBits(bs, 2); /* dolby_surround_mode */ - FDKreadBits(bs, 2); /* presentation_mode */ - if (FDKreadBits(bs, 2) != 0) { /* reserved, set to 0 */ - return 0; - } - - /* Evaluate ancillary_data_status */ - if (FDKreadBits(bs, 3) != 0) { /* reserved, set to 0 */ - return 0; - } - dmxLevelsPresent = FDKreadBits(bs, 1); /* downmixing_levels_MPEG4_status */ - if (FDKreadBits(bs, 1) != 0) { /* reserved, set to 0 */ - return 0; - } - compressionPresent = FDKreadBits(bs, 1); /* audio_coding_mode_and_compression status */ - coarseGrainTcPresent = FDKreadBits(bs, 1); /* coarse_grain_timecode_status */ - fineGrainTcPresent = FDKreadBits(bs, 1); /* fine_grain_timecode_status */ - bitCnt += 24; - - if (dmxLevelsPresent) { - FDKreadBits(bs, 8); /* downmixing_levels_MPEG4 */ - bitCnt += 8; - } - - /* audio_coding_mode_and_compression_status */ - if (compressionPresent) - { - UCHAR compressionOn, compressionValue; - - /* audio_coding_mode */ - if ( FDKreadBits(bs, 7) != 0 ) { /* The reserved bits shall be set to "0". */ - return 0; - } - compressionOn = (UCHAR)FDKreadBits(bs, 1); /* compression_on */ - compressionValue = (UCHAR)FDKreadBits(bs, 8); /* Compression_value */ - bitCnt += 16; - - if ( compressionOn ) { - /* A compression value is available so store the data just like MPEG DRC data */ - pDrcBs->channelData.numBands = 1; /* One band ... */ - pDrcBs->channelData.drcValue[0] = compressionValue; /* ... with one value ... */ - pDrcBs->channelData.bandTop[0] = (1024 >> 2) - 1; /* ... comprising the whole spectrum. */ - pDrcBs->pceInstanceTag = -1; /* Not present */ - pDrcBs->progRefLevel = -1; /* Not present */ - pDrcBs->channelData.drcDataType = DVB_DRC_ANC_DATA; /* Set DRC payload type to DVB. */ - } else { - /* No compression value available */ - /* CAUTION: It is not clearly defined by standard how to react in this situation. */ - /* Turn down the compression value to aprox. 0dB */ - pDrcBs->channelData.numBands = 1; /* One band ... */ - pDrcBs->channelData.drcValue[0] = 0x80; /* ... with aprox. 0dB ... */ - pDrcBs->channelData.bandTop[0] = (1024 >> 2) - 1; /* ... comprising the whole spectrum. */ - pDrcBs->channelData.drcDataType = DVB_DRC_ANC_DATA; /* Set DRC payload type to DVB. */ - - /* If compression_on field is set to "0" the compression_value field shall be "0000 0000". */ - if (compressionValue != 0) { - return 0; - } - } - } - - /* Read timecodes if available just to get the right amount of bits. */ - if (coarseGrainTcPresent) { - FDKreadBits(bs, 16); /* coarse_grain_timecode */ - bitCnt += 16; - } - if (fineGrainTcPresent) { - FDKreadBits(bs, 16); /* fine_grain_timecode */ - bitCnt += 16; - } - - return (bitCnt); -} - - -/* - * Prepare DRC processing - */ -static int aacDecoder_drcExtractAndMap ( - HANDLE_AAC_DRC self, - HANDLE_FDK_BITSTREAM hBs, - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[], - UCHAR pceInstanceTag, - UCHAR channelMapping[], /* Channel mapping translating drcChannel index to canonical channel index */ - int validChannels ) -{ - CDrcPayload threadBs[MAX_DRC_THREADS]; - CDrcPayload *validThreadBs[MAX_DRC_THREADS]; - CDrcParams *pParams; - UINT backupBsPosition; - int i, thread, validThreads = 0; - int numExcludedChns[MAX_DRC_THREADS]; - - FDK_ASSERT(self != NULL); - FDK_ASSERT(hBs != NULL); - FDK_ASSERT(pAacDecoderStaticChannelInfo != NULL); - - pParams = &self->params; - - self->numThreads = 0; - backupBsPosition = FDKgetValidBits(hBs); - - for (i = 0; i < self->numPayloads && self->numThreads < MAX_DRC_THREADS; i++) { - int bitsParsed; - - /* Init payload data chunk. The memclear is very important because it initializes - the most values. Without it the module wouldn't work properly or crash. */ - FDKmemclear(&threadBs[self->numThreads], sizeof(CDrcPayload)); - threadBs[self->numThreads].channelData.bandTop[0] = (1024 >> 2) - 1; - - /* Extract payload */ - bitsParsed = aacDecoder_drcParse( hBs, - &threadBs[self->numThreads], - self->drcPayloadPosition[i] ); - if (bitsParsed > 0) { - self->numThreads++; - } - } - self->numPayloads = 0; - - if (self->dvbAncDataAvailable) - { /* Append a DVB heavy compression payload thread if available. */ - int bitsParsed; - - /* Init payload data chunk. The memclear is very important because it initializes - the most values. Without it the module wouldn't work properly or crash. */ - FDKmemclear(&threadBs[self->numThreads], sizeof(CDrcPayload)); - threadBs[self->numThreads].channelData.bandTop[0] = (1024 >> 2) - 1; - - /* Extract payload */ - bitsParsed = aacDecoder_drcReadCompression( hBs, - &threadBs[self->numThreads], - self->dvbAncDataPosition ); - if (bitsParsed > 0) { - self->numThreads++; - } - } - self->dvbAncDataAvailable = 0; - - /* Reset the bitbufffer */ - FDKpushBiDirectional(hBs, FDKgetValidBits(hBs) - backupBsPosition); - - /* calculate number of valid bits in excl_chn_mask */ - - /* coupling channels not supported */ - - /* check for valid threads */ - for (thread = 0; thread < self->numThreads; thread++) { - CDrcPayload *pThreadBs = &threadBs[thread]; - int numExclChns = 0; - - switch ((AACDEC_DRC_PAYLOAD_TYPE)pThreadBs->channelData.drcDataType) { - default: - continue; - case MPEG_DRC_EXT_DATA: - case DVB_DRC_ANC_DATA: - break; - } - - if (pThreadBs->pceInstanceTag >= 0) { /* if PCE tag present */ - if (pThreadBs->pceInstanceTag != pceInstanceTag) { - continue; /* don't accept */ - } - } - - /* calculate number of excluded channels */ - if (pThreadBs->excludedChnsMask > 0) { - INT exclMask = pThreadBs->excludedChnsMask; - int ch; - for (ch = 0; ch < validChannels; ch++) { - numExclChns += exclMask & 0x1; - exclMask >>= 1; - } - } - if (numExclChns < validChannels) { - validThreadBs[validThreads] = pThreadBs; - numExcludedChns[validThreads] = numExclChns; - validThreads++; - } - } - - if (validThreads > 1) { - int ch; - - /* check consistency of excl_chn_mask amongst valid DRC threads */ - for (ch = 0; ch < validChannels; ch++) { - int present = 0; - - for (thread = 0; thread < validThreads; thread++) { - CDrcPayload *pThreadBs = validThreadBs[thread]; - - - /* thread applies to this channel */ - if ( (pThreadBs->channelData.drcDataType == MPEG_DRC_EXT_DATA) - && ( (numExcludedChns[thread] == 0) - || (!(pThreadBs->excludedChnsMask & (1<<ch))) ) ) { - present++; - } - } - - - if (present > 1) { - return -1; - } - } - } - - /* map DRC bitstream information onto DRC channel information */ - for (thread = 0; thread < validThreads; thread++) - { - CDrcPayload *pThreadBs = validThreadBs[thread]; - INT exclMask = pThreadBs->excludedChnsMask; - AACDEC_DRC_PAYLOAD_TYPE drcPayloadType = (AACDEC_DRC_PAYLOAD_TYPE)pThreadBs->channelData.drcDataType; - int ch; - - /* last progRefLevel transmitted is the one that is used - * (but it should really only be transmitted once per block!) - */ - if (pThreadBs->progRefLevel >= 0) { - self->progRefLevel = pThreadBs->progRefLevel; - self->prlExpiryCount = 0; /* Got a new value -> Reset counter */ - } - - /* SCE, CPE and LFE */ - for (ch = 0; ch < validChannels; ch++) { - int mapedChannel = channelMapping[ch]; - - if ( ((exclMask & (1<<mapedChannel)) == 0) - && ( (drcPayloadType == MPEG_DRC_EXT_DATA) - || ((drcPayloadType == DVB_DRC_ANC_DATA) && self->params.applyHeavyCompression) - ) ) { - /* copy thread to channel */ - pAacDecoderStaticChannelInfo[ch]->drcData = pThreadBs->channelData; - } - } - /* CCEs not supported by now */ - } - - /* Increment and check expiry counter for the program reference level: */ - if ( (pParams->expiryFrame > 0) - && (self->prlExpiryCount++ > pParams->expiryFrame) ) - { /* The program reference level is too old, so set it back to the target level. */ - self->progRefLevel = pParams->targetRefLevel; - self->prlExpiryCount = 0; - } - - return 0; -} - - -void aacDecoder_drcApply ( - HANDLE_AAC_DRC self, - void *pSbrDec, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - CDrcChannelData *pDrcChData, - int ch, /* needed only for SBR */ - int aacFrameSize, - int bSbrPresent ) -{ - int band, top, bin, numBands; - int bottom = 0; - int modifyBins = 0; - - FIXP_DBL max_mantissa; - INT max_exponent; - - FIXP_DBL norm_mantissa = FL2FXCONST_DBL(0.0f); - INT norm_exponent = 0; - - FIXP_DBL fact_mantissa[MAX_DRC_BANDS]; - INT fact_exponent[MAX_DRC_BANDS]; - - CDrcParams *pParams = &self->params; - - FIXP_DBL *pSpectralCoefficient = SPEC_LONG(pAacDecoderChannelInfo->pSpectralCoefficient); - CIcsInfo *pIcsInfo = &pAacDecoderChannelInfo->icsInfo; - SHORT *pSpecScale = pAacDecoderChannelInfo->specScale; - - int winSeq = pIcsInfo->WindowSequence; - - /* Increment and check expiry counter */ - if ( (pParams->expiryFrame > 0) - && (++pDrcChData->expiryCount > pParams->expiryFrame) ) - { /* The DRC data is too old, so delete it. */ - aacDecoder_drcInitChannelData( pDrcChData ); - } - - if (!self->enable) { - sbrDecoder_drcDisable( (HANDLE_SBRDECODER)pSbrDec, ch ); - return; - } - - numBands = pDrcChData->numBands; - top = FDKmax(0, numBands-1); - - pDrcChData->bandTop[0] = fixMin(pDrcChData->bandTop[0], (aacFrameSize >> 2) - 1); - - /* If program reference normalization is done in the digital domain, - modify factor to perform normalization. prog_ref_level can - alternatively be passed to the system for modification of the level in - the analog domain. Analog level modification avoids problems with - reduced DAC SNR (if signal is attenuated) or clipping (if signal is - boosted) */ - - if (self->digitalNorm == 1) - { - /* 0.5^((targetRefLevel - progRefLevel)/24) */ - norm_mantissa = fLdPow( - FL2FXCONST_DBL(-1.0), /* log2(0.5) */ - 0, - (FIXP_DBL)((INT)(FL2FXCONST_DBL(1.0f/24.0)>>3) * (INT)(pParams->targetRefLevel-self->progRefLevel)), - 3, - &norm_exponent ); - } - else { - norm_mantissa = FL2FXCONST_DBL(0.5f); - norm_exponent = 1; - } - - - /* calc scale factors */ - for (band = 0; band < numBands; band++) - { - UCHAR drcVal = pDrcChData->drcValue[band]; - top = fixMin((int)( (pDrcChData->bandTop[band]+1)<<2 ), aacFrameSize); - - fact_mantissa[band] = FL2FXCONST_DBL(0.5f); - fact_exponent[band] = 1; - - if ( pParams->applyHeavyCompression - && ((AACDEC_DRC_PAYLOAD_TYPE)pDrcChData->drcDataType == DVB_DRC_ANC_DATA) ) - { - INT compressionFactorVal_e; - int valX, valY; - - valX = drcVal >> 4; - valY = drcVal & 0x0F; - - /* calculate the unscaled heavy compression factor. - compressionFactor = 48.164 - 6.0206*valX - 0.4014*valY dB - range: -48.166 dB to 48.164 dB */ - if ( drcVal != 0x7F ) { - fact_mantissa[band] = - fPowInt( FL2FXCONST_DBL(0.95483867181), /* -0.4014dB = 0.95483867181 */ - 0, - valY, - &compressionFactorVal_e ); - - /* -0.0008dB (48.164 - 6.0206*8 = -0.0008) */ - fact_mantissa[band] = fMult(FL2FXCONST_DBL(0.99990790084), fact_mantissa[band]); - - fact_exponent[band] = DVB_COMPRESSION_SCALE - valX + compressionFactorVal_e; - } - } else - if ((AACDEC_DRC_PAYLOAD_TYPE)pDrcChData->drcDataType == MPEG_DRC_EXT_DATA) - { - /* apply the scaled dynamic range control words to factor. - * if scaling drc_cut (or drc_boost), or control word drc_mantissa is 0 - * then there is no dynamic range compression - * - * if pDrcChData->drcSgn[band] is - * 1 then gain is < 1 : factor = 2^(-self->cut * pDrcChData->drcMag[band] / 24) - * 0 then gain is > 1 : factor = 2^( self->boost * pDrcChData->drcMag[band] / 24) - */ - - if ((drcVal&0x7F) > 0) { - FIXP_DBL tParamVal = (drcVal & 0x80) ? -pParams->cut : pParams->boost; - - fact_mantissa[band] = - f2Pow( (FIXP_DBL)((INT)fMult(FL2FXCONST_DBL(1.0f/192.0f), tParamVal) * (drcVal&0x7F)), - 3+DRC_PARAM_SCALE, - &fact_exponent[band] ); - } - } - - fact_mantissa[band] = fMult(fact_mantissa[band], norm_mantissa); - fact_exponent[band] += norm_exponent; - - - bottom = top; - - } /* end loop over bands */ - - - /* normalizations */ - { - int res; - - max_mantissa = FL2FXCONST_DBL(0.0f); - max_exponent = 0; - for (band = 0; band < numBands; band++) { - max_mantissa = fixMax(max_mantissa, fact_mantissa[band]); - max_exponent = fixMax(max_exponent, fact_exponent[band]); - } - - /* left shift factors to gain accurancy */ - res = CntLeadingZeros(max_mantissa) - 1; - - /* above topmost DRC band gain factor is 1 */ - if (((pDrcChData->bandTop[numBands-1]+1)<<2) < aacFrameSize) res = 0; - - if (res > 0) { - res = fixMin(res, max_exponent); - max_exponent -= res; - - for (band = 0; band < numBands; band++) { - fact_mantissa[band] <<= res; - fact_exponent[band] -= res; - } - } - - /* normalize magnitudes to one scale factor */ - for (band = 0; band < numBands; band++) { - if (fact_exponent[band] < max_exponent) { - fact_mantissa[band] >>= max_exponent - fact_exponent[band]; - } - if (fact_mantissa[band] != FL2FXCONST_DBL(0.5f)) { - modifyBins = 1; - } - } - if (max_exponent != 1) { - modifyBins = 1; - } - } - - /* apply factor to spectral lines - * short blocks must take care that bands fall on - * block boundaries! - */ - if (!bSbrPresent) - { - bottom = 0; - - if (!modifyBins) { - /* We don't have to modify the spectral bins because the fractional part of all factors is 0.5. - In order to keep accurancy we don't apply the factor but decrease the exponent instead. */ - max_exponent -= 1; - } else - { - for (band = 0; band < numBands; band++) - { - top = fixMin((int)( (pDrcChData->bandTop[band]+1)<<2 ), aacFrameSize); /* ... * DRC_BAND_MULT; */ - - for (bin = bottom; bin < top; bin++) { - pSpectralCoefficient[bin] = fMult(pSpectralCoefficient[bin], fact_mantissa[band]); - } - - bottom = top; - } - } - - /* above topmost DRC band gain factor is 1 */ - if (max_exponent > 0) { - for (bin = bottom; bin < aacFrameSize; bin+=1) { - pSpectralCoefficient[bin] >>= max_exponent; - } - } - - /* adjust scaling */ - pSpecScale[0] += max_exponent; - - if (winSeq == EightShortSequence) { - int win; - for (win = 1; win < 8; win++) { - pSpecScale[win] += max_exponent; - } - } - } - else { - HANDLE_SBRDECODER hSbrDecoder = (HANDLE_SBRDECODER)pSbrDec; - UINT numBands = pDrcChData->numBands; - - /* feed factors into SBR decoder for application in QMF domain. */ - sbrDecoder_drcFeedChannel ( - hSbrDecoder, - ch, - numBands, - fact_mantissa, - max_exponent, - pDrcChData->drcInterpolationScheme, - winSeq, - pDrcChData->bandTop - ); - } - - return; -} - - -/* - * Prepare DRC processing - */ -int aacDecoder_drcProlog ( - HANDLE_AAC_DRC self, - HANDLE_FDK_BITSTREAM hBs, - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[], - UCHAR pceInstanceTag, - UCHAR channelMapping[], /* Channel mapping translating drcChannel index to canonical channel index */ - int validChannels ) -{ - int err = 0; - - if (self == NULL) { - return -1; - } - - if (!self->params.bsDelayEnable) - { - err = aacDecoder_drcExtractAndMap ( - self, - hBs, - pAacDecoderStaticChannelInfo, - pceInstanceTag, - channelMapping, - validChannels ); - } - - return err; -} - - -/* - * Finalize DRC processing - */ -int aacDecoder_drcEpilog ( - HANDLE_AAC_DRC self, - HANDLE_FDK_BITSTREAM hBs, - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[], - UCHAR pceInstanceTag, - UCHAR channelMapping[], /* Channel mapping translating drcChannel index to canonical channel index */ - int validChannels ) -{ - int err = 0; - - if (self == NULL) { - return -1; - } - - if (self->params.bsDelayEnable) - { - err = aacDecoder_drcExtractAndMap ( - self, - hBs, - pAacDecoderStaticChannelInfo, - pceInstanceTag, - channelMapping, - validChannels ); - } - - return err; -} - diff --git a/libAACdec/src/aacdec_drc.h b/libAACdec/src/aacdec_drc.h deleted file mode 100644 index 2ebae2c..0000000 --- a/libAACdec/src/aacdec_drc.h +++ /dev/null @@ -1,174 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Christian Griebel - Description: Dynamic range control (DRC) decoder tool for AAC - -******************************************************************************/ - -#ifndef AACDEC_DRC_H -#define AACDEC_DRC_H - -#include "tp_data.h" /* for program config element support */ - - -#include "aacdec_drc_types.h" -#include "channel.h" -#include "FDK_bitstream.h" - -#define AACDEC_DRC_DEFAULT_REF_LEVEL ( 108 ) /* -27 dB below full scale (typical for movies) */ -#define AACDEC_DRC_DFLT_EXPIRY_FRAMES ( 50 ) /* Default DRC data expiry time in AAC frames */ - -/** - * \brief DRC module setting parameters - */ -typedef enum -{ - DRC_CUT_SCALE = 0, - DRC_BOOST_SCALE, - TARGET_REF_LEVEL, - DRC_BS_DELAY, - DRC_DATA_EXPIRY_FRAME, - APPLY_HEAVY_COMPRESSION - -} AACDEC_DRC_PARAM; - - -/** - * \brief DRC module interface functions - */ -void aacDecoder_drcInit ( - HANDLE_AAC_DRC self ); - -void aacDecoder_drcInitChannelData ( - CDrcChannelData *pDrcChannel ); - -AAC_DECODER_ERROR aacDecoder_drcSetParam ( - HANDLE_AAC_DRC self, - AACDEC_DRC_PARAM param, - INT value ); - -int aacDecoder_drcMarkPayload ( - HANDLE_AAC_DRC self, - HANDLE_FDK_BITSTREAM hBs, - AACDEC_DRC_PAYLOAD_TYPE type ); - -int aacDecoder_drcProlog ( - HANDLE_AAC_DRC self, - HANDLE_FDK_BITSTREAM hBs, - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[], - UCHAR pceInstanceTag, - UCHAR channelMapping[], - int numChannels ); - -/** - * \brief Apply DRC. If SBR is present, DRC data is handed over to the SBR decoder. - * \param self AAC decoder instance - * \param pSbrDec pointer to SBR decoder instance - * \param pAacDecoderChannelInfo AAC decoder channel instance to be processed - * \param pDrcDat DRC channel data - * \param ch channel index - * \param aacFrameSize AAC frame size - * \param bSbrPresent flag indicating that SBR is present, in which case DRC is handed over to the SBR instance pSbrDec - */ -void aacDecoder_drcApply ( - HANDLE_AAC_DRC self, - void *pSbrDec, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - CDrcChannelData *pDrcDat, - int ch, - int aacFrameSize, - int bSbrPresent ); - -int aacDecoder_drcEpilog ( - HANDLE_AAC_DRC self, - HANDLE_FDK_BITSTREAM hBs, - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[], - UCHAR pceInstanceTag, - UCHAR channelMapping[], - int validChannels ); - - -#endif /* AACDEC_DRC_H */ diff --git a/libAACdec/src/aacdec_drc_types.h b/libAACdec/src/aacdec_drc_types.h deleted file mode 100644 index 1b5cd76..0000000 --- a/libAACdec/src/aacdec_drc_types.h +++ /dev/null @@ -1,170 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Christian Griebel - Description: Dynamic range control (DRC) global data types - -******************************************************************************/ - -#ifndef AACDEC_DRC_TYPES_H -#define AACDEC_DRC_TYPES_H - - - -#include "common_fix.h" - - #define MAX_DRC_THREADS ( 3 ) /* Heavy compression value is handled just like MPEG DRC data */ -#define MAX_DRC_BANDS ( 16 ) /* 2^LEN_DRC_BAND_INCR (LEN_DRC_BAND_INCR = 4) */ - -/** - * \brief DRC module global data types - */ -typedef enum -{ - UNKNOWN_PAYLOAD = 0, - MPEG_DRC_EXT_DATA = 1, - DVB_DRC_ANC_DATA = 2 - -} AACDEC_DRC_PAYLOAD_TYPE; - -typedef struct -{ - UINT expiryCount; - UINT numBands; - USHORT bandTop[MAX_DRC_BANDS]; - SHORT drcInterpolationScheme; - UCHAR drcValue[MAX_DRC_BANDS]; - SCHAR drcDataType; - -} CDrcChannelData; - -typedef struct -{ - UINT excludedChnsMask; - SCHAR progRefLevel; - SCHAR pceInstanceTag; - - CDrcChannelData channelData; - -} CDrcPayload; - -typedef struct -{ - FIXP_DBL cut; /* The attenuation scale factor currently used. */ - FIXP_DBL usrCut; /* The latest attenuation scale factor set by user. */ - FIXP_DBL boost; /* The boost scale factor currently used. */ - FIXP_DBL usrBoost; /* The latest boost scale factor set by user. */ - - UINT expiryFrame; - SCHAR targetRefLevel; - UCHAR bsDelayEnable; - UCHAR applyHeavyCompression; - -} CDrcParams; - - -typedef struct -{ - CDrcParams params; /* Module parameters that can be set by user (via SetParam API function) */ - - UCHAR enable; /* Switch that controls dynamic range processing */ - UCHAR digitalNorm; /* Switch to en-/disable reference level normalization in digital domain */ - - USHORT numPayloads; /* The number of DRC data payload elements found within frame */ - USHORT numThreads; /* The number of DRC data threads extracted from the found payload elements */ - SCHAR progRefLevel; /* Program reference level for all channels */ - - UINT prlExpiryCount; /* Counter that can be used to monitor the life time of the program reference level. */ - - UCHAR dvbAncDataAvailable; /* Flag that indicates whether DVB ancillary data is present or not */ - UINT dvbAncDataPosition; /* Used to store the DVB ancillary data payload position in the bitstream (only one per frame) */ - UINT drcPayloadPosition[MAX_DRC_THREADS]; /* Used to store the DRC payload positions in the bitstream */ - -} CDrcInfo; - -typedef CDrcInfo *HANDLE_AAC_DRC; - -#endif /* AACDEC_DRC_TYPES_H */ - diff --git a/libAACdec/src/aacdec_hcr.cpp b/libAACdec/src/aacdec_hcr.cpp deleted file mode 100644 index e314e27..0000000 --- a/libAACdec/src/aacdec_hcr.cpp +++ /dev/null @@ -1,1591 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder *************************** - - Author(s): Robert Weidner (DSP Solutions) - Description: HCR Decoder: HCR initialization, preprocess HCR sideinfo, - decode priority codewords (PCWs) - -*******************************************************************************/ - -#include "aacdec_hcr.h" - - - -#include "aacdec_hcr_types.h" -#include "aacdec_hcr_bit.h" -#include "aacdec_hcrs.h" -#include "aac_ram.h" -#include "aac_rom.h" -#include "channel.h" -#include "block.h" - -#include "aacdecoder.h" /* for ID_CPE, ID_SCE ... */ -#include "FDK_bitstream.h" - -extern int mlFileChCurr; - -static void errDetectorInHcrSideinfoShrt(SCHAR cb, - SHORT numLine, - UINT *errorWord); - -static void errDetectorInHcrLengths(SCHAR lengthOfLongestCodeword, - SHORT lengthOfReorderedSpectralData, - UINT *errorWord); - -static void HcrCalcNumCodeword (H_HCR_INFO pHcr); -static void HcrSortCodebookAndNumCodewordInSection(H_HCR_INFO pHcr); -static void HcrPrepareSegmentationGrid (H_HCR_INFO pHcr); -static void HcrExtendedSectionInfo (H_HCR_INFO pHcr); - -static void DeriveNumberOfExtendedSortedSectionsInSets(UINT numSegment, - USHORT *pNumExtendedSortedCodewordInSection, - int numExtendedSortedCodewordInSectionIdx, - USHORT *pNumExtendedSortedSectionsInSets, - int numExtendedSortedSectionsInSetsIdx); - -static INT DecodeEscapeSequence(HANDLE_FDK_BITSTREAM bs, - INT quantSpecCoef, - USHORT *pLeftStartOfSegment, - SCHAR *pRemainingBitsInSegment, - int *pNumDecodedBits - ); - -static int DecodePCW_Sign(HANDLE_FDK_BITSTREAM bs, - UINT codebookDim, - const SCHAR *pQuantVal, - FIXP_DBL *pQuantSpecCoef, - int *quantSpecCoefIdx, - USHORT *pLeftStartOfSegment, - SCHAR *pRemainingBitsInSegment, - int *pNumDecodedBits - ); - -static const SCHAR *DecodePCW_Body(HANDLE_FDK_BITSTREAM bs, - const UINT *pCurrentTree, - const SCHAR *pQuantValBase, - USHORT *pLeftStartOfSegment, - SCHAR *pRemainingBitsInSegment, - int *pNumDecodedBits - ); - -static void DecodePCWs(HANDLE_FDK_BITSTREAM bs, H_HCR_INFO pHcr); - -static void HcrReorderQuantizedSpectralCoefficients( - H_HCR_INFO pHcr, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - const SamplingRateInfo *pSamplingRateInfo - ); - - -#if CHECK_SEGMENTATION_IMMEDIATELY -static UCHAR errDetectPcwSegmentation(SCHAR remainingBitsInSegment, - H_HCR_INFO pHcr, - PCW_TYPE kind, - FIXP_DBL *qsc_base_of_cw, - UCHAR dimension); -#endif - -#if CHECK_SEGMENTATION_FINAL -static void errDetectWithinSegmentationFinal(H_HCR_INFO pHcr); -#endif - -/*--------------------------------------------------------------------------------------------- - description: Check if codebook and numSect are within allowed range (short only) --------------------------------------------------------------------------------------------- */ -static void errDetectorInHcrSideinfoShrt(SCHAR cb, SHORT numLine,UINT* errorWord) -{ - - - - if ( cb < ZERO_HCB || cb >= MAX_CB_CHECK || cb == BOOKSCL ) { - *errorWord |= CB_OUT_OF_RANGE_SHORT_BLOCK; - } - if ( numLine < 0 || numLine > 1024 ) { - *errorWord |= LINE_IN_SECT_OUT_OF_RANGE_SHORT_BLOCK; - } -} - -/*--------------------------------------------------------------------------------------------- - description: Check both HCR lengths --------------------------------------------------------------------------------------------- */ -static void errDetectorInHcrLengths(SCHAR lengthOfLongestCodeword, - SHORT lengthOfReorderedSpectralData, - UINT *errorWord) -{ - if ( lengthOfReorderedSpectralData < lengthOfLongestCodeword ) { - *errorWord |= HCR_SI_LENGTHS_FAILURE; - } -} - -/*--------------------------------------------------------------------------------------------- - description: Decode (and adapt if necessary) the two HCR sideinfo components: - 'reordered_spectral_data_length' and 'longest_codeword_length' --------------------------------------------------------------------------------------------- */ - -void CHcr_Read(HANDLE_FDK_BITSTREAM bs, - CAacDecoderChannelInfo *pAacDecoderChannelInfo) -{ - INT globalHcrType = getHcrType(&pAacDecoderChannelInfo->pComData->overlay.aac.erHcrInfo); - SHORT lengOfReorderedSpectralData; - SCHAR lengOfLongestCodeword; - - pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfReorderedSpectralData = 0; - pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfLongestCodeword = 0; - - - - /* ------- SI-Value No 1 ------- */ - lengOfReorderedSpectralData = FDKreadBits(bs,14) + ERROR_LORSD; - if ( globalHcrType == ID_CPE ) { - if ((lengOfReorderedSpectralData >= 0) && (lengOfReorderedSpectralData <= CPE_TOP_LENGTH)) { - pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfReorderedSpectralData = lengOfReorderedSpectralData; /* the decoded value is within range */ - } - else { - if (lengOfReorderedSpectralData > CPE_TOP_LENGTH) { - pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfReorderedSpectralData = CPE_TOP_LENGTH; /* use valid maximum */ - } - } - } - else if (globalHcrType == ID_SCE || globalHcrType == ID_LFE || globalHcrType == ID_CCE ) { - if ((lengOfReorderedSpectralData >= 0) && (lengOfReorderedSpectralData <= SCE_TOP_LENGTH)) { - pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfReorderedSpectralData = lengOfReorderedSpectralData; /* the decoded value is within range */ - } - else { - if (lengOfReorderedSpectralData > SCE_TOP_LENGTH) { - pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfReorderedSpectralData = SCE_TOP_LENGTH; /* use valid maximum */ - } - } - } - - /* ------- SI-Value No 2 ------- */ - lengOfLongestCodeword = FDKreadBits(bs,6) + ERROR_LOLC; - if ((lengOfLongestCodeword >= 0) && (lengOfLongestCodeword <= LEN_OF_LONGEST_CW_TOP_LENGTH)) { - pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfLongestCodeword = lengOfLongestCodeword; /* the decoded value is within range */ - } - else { - if (lengOfLongestCodeword > LEN_OF_LONGEST_CW_TOP_LENGTH) { - pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfLongestCodeword = LEN_OF_LONGEST_CW_TOP_LENGTH; /* use valid maximum */ - } - } -} - - -/*--------------------------------------------------------------------------------------------- - description: Sets up HCR ROM-Tables --------------------------------------------------------------------------------------------- */ - -void HcrInitRom(H_HCR_INFO pHcr) -{ - pHcr->cbPairs.pMinOfCbPair = aMinOfCbPair; - pHcr->cbPairs.pMaxOfCbPair = aMaxOfCbPair; - - pHcr->tableInfo.pMaxCwLength = aMaxCwLen; - pHcr->tableInfo.pCbDimension = aDimCb; - pHcr->tableInfo.pCbDimShift = aDimCbShift; - pHcr->tableInfo.pCbSign = aSignCb; - pHcr->tableInfo.pCbPriority = aCbPriority; - pHcr->tableInfo.pLargestAbsVal = aLargestAbsoluteValue; -} - -/*--------------------------------------------------------------------------------------------- - description: Set up HCR - must be called before every call to HcrDecoder(). - For short block a sorting algorithm is applied to get the SI in the order - that HCR could assemble the qsc's as if it is a long block. ------------------------------------------------------------------------------------------------ - return: error log --------------------------------------------------------------------------------------------- */ - -UINT HcrInit(H_HCR_INFO pHcr, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - const SamplingRateInfo *pSamplingRateInfo, - HANDLE_FDK_BITSTREAM bs) -{ - CIcsInfo *pIcsInfo = &pAacDecoderChannelInfo->icsInfo; - SHORT *pNumLinesInSec; - UCHAR *pCodeBk; - SHORT numSection; - SCHAR cb; - int numLine; - int i; - - pHcr->decInOut.lengthOfReorderedSpectralData = pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfReorderedSpectralData; - pHcr->decInOut.lengthOfLongestCodeword = pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfLongestCodeword; - pHcr->decInOut.pQuantizedSpectralCoefficientsBase = pAacDecoderChannelInfo->pSpectralCoefficient; - pHcr->decInOut.quantizedSpectralCoefficientsIdx = 0; - pHcr->decInOut.pCodebook = pAacDecoderChannelInfo->pDynData->specificTo.aac.aCodeBooks4Hcr; - pHcr->decInOut.pNumLineInSect = pAacDecoderChannelInfo->pDynData->specificTo.aac.aNumLineInSec4Hcr; - pHcr->decInOut.numSection = pAacDecoderChannelInfo->pDynData->specificTo.aac.numberSection; - pHcr->decInOut.errorLog = 0; - pHcr->nonPcwSideinfo.pResultBase = SPEC_LONG(pAacDecoderChannelInfo->pSpectralCoefficient); - - FDKsyncCache(bs); - pHcr->decInOut.bitstreamIndex = FDKgetBitCnt(bs); - - if (!IsLongBlock(&pAacDecoderChannelInfo->icsInfo)) /* short block */ - { - SHORT band; - SHORT maxBand; - SCHAR group; - SCHAR winGroupLen; - SCHAR window; - SCHAR numUnitInBand; - SCHAR cntUnitInBand; - SCHAR groupWin; - SCHAR cb_prev; - - UCHAR *pCodeBook; - const SHORT *BandOffsets; - SCHAR numOfGroups; - - - pCodeBook = pAacDecoderChannelInfo->pDynData->aCodeBook; /* in */ - pNumLinesInSec = pHcr->decInOut.pNumLineInSect; /* out */ - pCodeBk = pHcr->decInOut.pCodebook; /* out */ - BandOffsets = GetScaleFactorBandOffsets(pIcsInfo, pSamplingRateInfo); /* aux */ - numOfGroups = GetWindowGroups(pIcsInfo); - - numLine = 0; - numSection = 0; - cb = pCodeBook[0]; - cb_prev = pCodeBook[0]; - - /* convert HCR-sideinfo into a unitwise manner: When the cb changes, a new section starts */ - - *pCodeBk++ = cb_prev; - - maxBand = GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo->icsInfo); - for (band = 0; band < maxBand; band++) { /* from low to high sfbs i.e. from low to high frequencies */ - numUnitInBand = ((BandOffsets[band+1] - BandOffsets[band]) >> FOUR_LOG_DIV_TWO_LOG); /* get the number of units in current sfb */ - for (cntUnitInBand = numUnitInBand; cntUnitInBand != 0; cntUnitInBand-- ) { /* for every unit in the band */ - for (window = 0, group = 0; group < numOfGroups; group++) { - winGroupLen = GetWindowGroupLength(&pAacDecoderChannelInfo->icsInfo,group); - for (groupWin = winGroupLen; groupWin != 0; groupWin--, window++) { - cb = pCodeBook[group * 16 + band]; - if (cb != cb_prev) { -#if CHECK_VALID_HCR_INPUT /* short-block 1 of 2 */ - errDetectorInHcrSideinfoShrt(cb,numLine,&pHcr->decInOut.errorLog ); - if (pHcr->decInOut.errorLog != 0 ) { - return ( pHcr->decInOut.errorLog ); - } -#endif - *pCodeBk++ = cb; - *pNumLinesInSec++ = numLine; - numSection++; - - cb_prev = cb; - numLine = LINES_PER_UNIT; - } - else { - numLine += LINES_PER_UNIT; - } - } - } - } - } - - numSection++; - -#if CHECK_VALID_HCR_INPUT /* short-block 2 of 2 */ - errDetectorInHcrSideinfoShrt(cb,numLine,&pHcr->decInOut.errorLog ); - if ( numSection <= 0 || numSection > 1024/2 ) { - pHcr->decInOut.errorLog |= NUM_SECT_OUT_OF_RANGE_SHORT_BLOCK; - } - errDetectorInHcrLengths(pHcr->decInOut.lengthOfLongestCodeword, - pHcr->decInOut.lengthOfReorderedSpectralData, - &pHcr->decInOut.errorLog); - if (pHcr->decInOut.errorLog != 0 ) { - return ( pHcr->decInOut.errorLog ); - } -#endif - - *pCodeBk = cb; - *pNumLinesInSec = numLine; - pHcr->decInOut.numSection = numSection; - - } else /* end short block prepare SI */ - { /* long block */ -#if CHECK_VALID_HCR_INPUT /* long-block 1 of 1 */ - errDetectorInHcrLengths(pHcr->decInOut.lengthOfLongestCodeword, - pHcr->decInOut.lengthOfReorderedSpectralData, - &pHcr->decInOut.errorLog); - numSection = pHcr->decInOut.numSection; - pNumLinesInSec = pHcr->decInOut.pNumLineInSect; - pCodeBk = pHcr->decInOut.pCodebook; - if ( numSection <= 0 || numSection > 64 ) { - pHcr->decInOut.errorLog |= NUM_SECT_OUT_OF_RANGE_LONG_BLOCK; - numSection = 0; - } - - for ( i = numSection; i != 0; i-- ) - { - cb = *pCodeBk++; - - if ( cb < ZERO_HCB || cb >= MAX_CB_CHECK || cb == BOOKSCL ) { - pHcr->decInOut.errorLog |= CB_OUT_OF_RANGE_LONG_BLOCK; - } - - numLine = *pNumLinesInSec++; - /* FDK_ASSERT(numLine > 0); */ - - if ( (numLine <= 0) || (numLine > 1024) ) { - pHcr->decInOut.errorLog |= LINE_IN_SECT_OUT_OF_RANGE_LONG_BLOCK; - } - } - if (pHcr->decInOut.errorLog != 0 ) { - return ( pHcr->decInOut.errorLog ); - } -#endif /* CHECK_VALID_HCR_INPUT */ - } - - pCodeBk = pHcr->decInOut.pCodebook; - for ( i = 0; i < numSection; i++ ) { - if ( - (*pCodeBk == NOISE_HCB) || - (*pCodeBk == INTENSITY_HCB2) || - (*pCodeBk == INTENSITY_HCB)) - { - *pCodeBk = 0; - } - pCodeBk++; - } - - /* HCR-sideinfo-input is complete and seems to be valid */ - - - - return ( pHcr->decInOut.errorLog ); -} - - - - -#if USE_HCR_DUMMY - -/*--------------------------------------------------------------------------------------------- - - description: This HCR - dummy - function writes only a dirac-sequence in output buffer - --------------------------------------------------------------------------------------------- */ -UINT HcrDecoder(H_HCR_INFO pHcr, - const CAacDecoderChannelInfo *pAacDecoderChannelInfo, - HANDLE_FDK_BITSTREAM bs) -{ - for (SHORT i=0; i < 1024; i++ ) { - pHcr->decInOut.pQuantizedSpectralCoefficients->Long[i] = FL2FXCONST_DBL(0.0f); - if ( i % 30 == 0) { - pHcr->decInOut.pQuantizedSpectralCoefficients->Long[i] = (FIXP_DBL)HCR_DIRAC; - } - } - return 0; -} - -#else /* USE_HCR_DUMMY */ - -/*--------------------------------------------------------------------------------------------- - description: This function decodes the codewords of the spectral coefficients from the - bitstream according to the HCR algorithm and stores the quantized spectral - coefficients in correct order in the output buffer. --------------------------------------------------------------------------------------------- */ - -UINT HcrDecoder(H_HCR_INFO pHcr, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - const SamplingRateInfo *pSamplingRateInfo, - HANDLE_FDK_BITSTREAM bs) -{ - int pTmp1, pTmp2, pTmp3, pTmp4; -#if DETECT_TOO_LONG_CW_READS - int pTmp5; -#endif - - INT bitCntOffst; - UINT saveBitCnt = FDKgetBitCnt(bs); /* save bitstream position */ - - HcrCalcNumCodeword(pHcr); - - HcrSortCodebookAndNumCodewordInSection(pHcr); - - HcrPrepareSegmentationGrid(pHcr); - - HcrExtendedSectionInfo(pHcr); - - if (( pHcr->decInOut.errorLog & HCR_FATAL_PCW_ERROR_MASK ) != 0 ) { - return ( pHcr->decInOut.errorLog ); /* sideinfo is massively corrupt, return from HCR without having decoded anything */ - } - - DeriveNumberOfExtendedSortedSectionsInSets(pHcr->segmentInfo.numSegment, - pHcr->sectionInfo.pNumExtendedSortedCodewordInSection, - pHcr->sectionInfo.numExtendedSortedCodewordInSectionIdx, - pHcr->sectionInfo.pNumExtendedSortedSectionsInSets, - pHcr->sectionInfo.numExtendedSortedSectionsInSetsIdx); - - /* store */ - pTmp1 = pHcr->sectionInfo.numExtendedSortedCodewordInSectionIdx; - pTmp2 = pHcr->sectionInfo.extendedSortedCodebookIdx; - pTmp3 = pHcr->sectionInfo.numExtendedSortedSectionsInSetsIdx; - pTmp4 = pHcr->decInOut.quantizedSpectralCoefficientsIdx; -#if DETECT_TOO_LONG_CW_READS - pTmp5 = pHcr->sectionInfo.maxLenOfCbInExtSrtSecIdx; -#endif - - /* ------- decode meaningful PCWs ------ */ - DecodePCWs(bs, pHcr); - - if (( pHcr->decInOut.errorLog & HCR_FATAL_PCW_ERROR_MASK ) == 0 ) { - /* ------ decode the non-PCWs -------- */ - DecodeNonPCWs(bs, pHcr); - } - - -#if CHECK_SEGMENTATION_FINAL - errDetectWithinSegmentationFinal(pHcr); -#endif - - /* restore */ - pHcr->sectionInfo.numExtendedSortedCodewordInSectionIdx = pTmp1; - pHcr->sectionInfo.extendedSortedCodebookIdx = pTmp2; - pHcr->sectionInfo.numExtendedSortedSectionsInSetsIdx = pTmp3; - pHcr->decInOut.quantizedSpectralCoefficientsIdx = pTmp4; -#if DETECT_TOO_LONG_CW_READS - pHcr->sectionInfo.maxLenOfCbInExtSrtSecIdx = pTmp5; -#endif - - HcrReorderQuantizedSpectralCoefficients(pHcr, pAacDecoderChannelInfo, pSamplingRateInfo); - - /* restore bitstream position */ - bitCntOffst = saveBitCnt - FDKgetBitCnt(bs); - if( bitCntOffst ) { - FDKpushBiDirectional(bs, bitCntOffst); - } - - return ( pHcr->decInOut.errorLog ); -} - - -#endif /* USE_HCR_DUMMY */ - - - - -/*--------------------------------------------------------------------------------------------- - description: This function reorders the quantized spectral coefficients sectionwise for - long- and short-blocks and compares to the LAV (Largest Absolute Value of - the current codebook) -- a counter is incremented if there is an error - detected. - Additional for short-blocks a unit-based-deinterleaving is applied. - Moreover (for short blocks) the scaling is derived (compare plain huffman - decoder). --------------------------------------------------------------------------------------------- */ - -static void HcrReorderQuantizedSpectralCoefficients( - H_HCR_INFO pHcr, CAacDecoderChannelInfo *pAacDecoderChannelInfo, - const SamplingRateInfo *pSamplingRateInfo - ) -{ - INT qsc; - UINT abs_qsc; - UINT i,j; - USHORT numSpectralValuesInSection; - FIXP_DBL *pTeVa; - USHORT lavErrorCnt = 0; - - UINT numSection = pHcr->decInOut.numSection; - SPECTRAL_PTR pQuantizedSpectralCoefficientsBase = pHcr->decInOut.pQuantizedSpectralCoefficientsBase; - FIXP_DBL *pQuantizedSpectralCoefficients = SPEC_LONG(pHcr->decInOut.pQuantizedSpectralCoefficientsBase); - const UCHAR *pCbDimShift = pHcr->tableInfo.pCbDimShift; - const USHORT *pLargestAbsVal = pHcr->tableInfo.pLargestAbsVal; - UCHAR *pSortedCodebook = pHcr->sectionInfo.pSortedCodebook; - USHORT *pNumSortedCodewordInSection = pHcr->sectionInfo.pNumSortedCodewordInSection; - USHORT *pReorderOffset = pHcr->sectionInfo.pReorderOffset; - FIXP_DBL *pTempValues = pHcr->segmentInfo.pTempValues; - FIXP_DBL *pBak = pHcr->segmentInfo.pTempValues; - - FDKmemclear(pTempValues,1024*sizeof(FIXP_DBL)); - - /* long and short: check if decoded huffman-values (quantized spectral coefficients) are within range */ - for ( i=numSection; i != 0; i-- ) { - numSpectralValuesInSection = *pNumSortedCodewordInSection++ << pCbDimShift[*pSortedCodebook]; - pTeVa = &pTempValues[*pReorderOffset++]; - for( j = numSpectralValuesInSection; j != 0; j-- ) { - qsc = *pQuantizedSpectralCoefficients++; - abs_qsc = FDKabs(qsc); -#if VALID_LAV_ERROR_TRIGGER - if ( abs_qsc <= pLargestAbsVal[*pSortedCodebook] ) { - *pTeVa++ = (FIXP_DBL)qsc; /* the qsc value is within range */ - } - else { /* line is too high .. */ - if ( abs_qsc == Q_VALUE_INVALID ) { /* .. because of previous marking --> dont set LAV flag (would be confusing), just copy out the already marked value */ - *pTeVa++ = (FIXP_DBL) qsc; - } - else { /* .. because a too high value was decoded for this cb --> set LAV flag */ - *pTeVa++ = (FIXP_DBL) Q_VALUE_INVALID; - lavErrorCnt += 1; - } - } -#else - if ( abs_qsc <= pLargestAbsVal[*pSortedCodebook] ) { - *pTeVa++ = qsc; - } - else { - *pTeVa++ = Q_VALUE_INVALID; - lavErrorCnt += 1; - } -#endif - } - pSortedCodebook++; - } - - if (!IsLongBlock(&pAacDecoderChannelInfo->icsInfo)) - { - FIXP_DBL *pOut; - FIXP_DBL locMax; - FIXP_DBL tmp; - SCHAR groupoffset; - SCHAR group; - SCHAR band; - SCHAR groupwin; - SCHAR window; - SCHAR numWinGroup; - SHORT interm; - SCHAR numSfbTransm; - SCHAR winGroupLen; - SHORT index; - INT msb; - INT lsb; - - SHORT *pScaleFacHcr = pAacDecoderChannelInfo->pDynData->aScaleFactor; - SHORT *pSfbSclHcr = pAacDecoderChannelInfo->pDynData->aSfbScale; - const SHORT *BandOffsets = GetScaleFactorBandOffsets(&pAacDecoderChannelInfo->icsInfo, pSamplingRateInfo); - - pBak = pHcr->segmentInfo.pTempValues; - /* deinterleave unitwise for short blocks */ - for ( window = 0; window < (8); window++ ) { - pOut = SPEC(pQuantizedSpectralCoefficientsBase, window, pAacDecoderChannelInfo->granuleLength); - for ( i=0; i < (LINES_PER_UNIT_GROUP); i++ ) { - pTeVa = pBak + (window << FOUR_LOG_DIV_TWO_LOG) + i * 32; /* distance of lines between unit groups has to be constant for every framelength (32)! */ - for ( j=(LINES_PER_UNIT); j != 0; j-- ) { - *pOut++ = *pTeVa++; - } - } - } - - /* short blocks only */ - /* derive global scaling-value for every sfb and every window (as it is done in plain-huffman-decoder at short blocks) */ - groupoffset = 0; - - numWinGroup = GetWindowGroups(&pAacDecoderChannelInfo->icsInfo); - numSfbTransm = GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo->icsInfo); - - for (group = 0; group < numWinGroup; group++) { - winGroupLen = GetWindowGroupLength(&pAacDecoderChannelInfo->icsInfo,group); - for (band = 0; band < numSfbTransm; band++) { - interm = group * 16 + band; - msb = pScaleFacHcr[interm] >> 2; - lsb = pScaleFacHcr[interm] & 3; - for (groupwin = 0; groupwin < winGroupLen; groupwin++) { - window = groupoffset + groupwin; - pBak = SPEC(pQuantizedSpectralCoefficientsBase, window, pAacDecoderChannelInfo->granuleLength); - locMax = FL2FXCONST_DBL(0.0f); - for (index = BandOffsets[band]; index < BandOffsets[band+1]; index += LINES_PER_UNIT) { - pTeVa = &pBak[index]; - for ( i = LINES_PER_UNIT; i != 0; i --) { - tmp = (*pTeVa < FL2FXCONST_DBL(0.0f))? -*pTeVa++ : *pTeVa++; - locMax = fixMax(tmp,locMax); - } - } - if ( fixp_abs(locMax) > (FIXP_DBL)MAX_QUANTIZED_VALUE ) { - locMax = (FIXP_DBL)MAX_QUANTIZED_VALUE; - } - pSfbSclHcr[window*16+band] = msb - GetScaleFromValue(locMax, lsb); /* save global scale maxima in this sfb */ - } - } - groupoffset += GetWindowGroupLength(&pAacDecoderChannelInfo->icsInfo,group); - } - } else - { - /* copy straight for long-blocks */ - pQuantizedSpectralCoefficients = SPEC_LONG(pQuantizedSpectralCoefficientsBase); - for ( i = 1024; i != 0; i-- ) { - *pQuantizedSpectralCoefficients++ = *pBak++; - } - } - - if ( lavErrorCnt != 0 ) { - pHcr->decInOut.errorLog |= LAV_VIOLATION; - } -} - - -/*--------------------------------------------------------------------------------------------- - description: This function calculates the number of codewords - for each section (numCodewordInSection) and the number of codewords - for all sections (numCodeword). - For zero and intensity codebooks a entry is also done in the variable - numCodewordInSection. It is assumed that the codebook is a two tuples - codebook. This is needed later for the calculation of the base addresses - for the reordering of the quantize spectral coefficients at the end of the - hcr tool. - The variable numCodeword contain the number of codewords which are really - in the bitstream. Zero or intensity codebooks does not increase the - variable numCodewords. ------------------------------------------------------------------------------------------------ - return: - --------------------------------------------------------------------------------------------- */ - -static void HcrCalcNumCodeword(H_HCR_INFO pHcr) -{ - int hcrSection; - UINT numCodeword; - - UINT numSection = pHcr->decInOut.numSection; - UCHAR *pCodebook = pHcr->decInOut.pCodebook; - SHORT *pNumLineInSection = pHcr->decInOut.pNumLineInSect; - const UCHAR *pCbDimShift = pHcr->tableInfo.pCbDimShift; - USHORT *pNumCodewordInSection = pHcr->sectionInfo.pNumCodewordInSection; - - numCodeword = 0; - for ( hcrSection = numSection; hcrSection != 0; hcrSection-- ) { - *pNumCodewordInSection = *pNumLineInSection++ >> pCbDimShift[*pCodebook]; - if ( *pCodebook != 0 ) { - numCodeword += *pNumCodewordInSection; - } - pNumCodewordInSection++; - pCodebook++; - } - pHcr->sectionInfo.numCodeword = numCodeword; -} - - -/*--------------------------------------------------------------------------------------------- - description: This function calculates the number - of sorted codebooks and sorts the codebooks and the numCodewordInSection - according to the priority. --------------------------------------------------------------------------------------------- */ - -static void HcrSortCodebookAndNumCodewordInSection(H_HCR_INFO pHcr) -{ - - UINT i,j,k; - UCHAR temp; - UINT counter; - UINT startOffset; - UINT numZeroSection; - UCHAR *pDest; - UINT numSectionDec; - - UINT numSection = pHcr->decInOut.numSection; - UCHAR *pCodebook = pHcr->decInOut.pCodebook; - UCHAR *pSortedCodebook = pHcr->sectionInfo.pSortedCodebook; - USHORT *pNumCodewordInSection = pHcr->sectionInfo.pNumCodewordInSection; - USHORT *pNumSortedCodewordInSection = pHcr->sectionInfo.pNumSortedCodewordInSection; - UCHAR *pCodebookSwitch = pHcr->sectionInfo.pCodebookSwitch; - USHORT *pReorderOffset = pHcr->sectionInfo.pReorderOffset; - const UCHAR *pCbPriority = pHcr->tableInfo.pCbPriority; - const UCHAR *pMinOfCbPair = pHcr->cbPairs.pMinOfCbPair; - const UCHAR *pMaxOfCbPair = pHcr->cbPairs.pMaxOfCbPair; - const UCHAR *pCbDimShift = pHcr->tableInfo.pCbDimShift; - - UINT searchStart = 0; - - /* calculate *pNumSortedSection and store the priorities in array pSortedCdebook */ - pDest = pSortedCodebook; - numZeroSection = 0; - for ( i=numSection; i != 0; i-- ) { - if ( pCbPriority[*pCodebook] == 0 ) { - numZeroSection += 1; - } - *pDest++ = pCbPriority[*pCodebook++]; - } - pHcr->sectionInfo.numSortedSection = numSection - numZeroSection; /* numSortedSection contains no zero or intensity section */ - pCodebook = pHcr->decInOut.pCodebook; - - /* sort priorities of the codebooks in array pSortedCdebook[] */ - numSectionDec = numSection - 1; - if ( numSectionDec > 0 ) { - counter = numSectionDec; - for ( j=numSectionDec; j != 0; j-- ) { - for ( i=0; i < counter; i++ ) { - /* swap priorities */ - if ( pSortedCodebook[i+1] > pSortedCodebook[i] ) { - temp = pSortedCodebook[i]; - pSortedCodebook[i] = pSortedCodebook[i+1]; - pSortedCodebook[i+1] = temp; - } - } - counter -= 1; - } - } - - /* clear codebookSwitch array */ - for ( i = numSection; i != 0; i--) { - *pCodebookSwitch++ = 0; - } - pCodebookSwitch = pHcr->sectionInfo.pCodebookSwitch; - - /* sort sectionCodebooks and numCodwordsInSection and calculate pReorderOffst[j] */ - for ( j = 0; j < numSection; j++ ) { - for ( i = searchStart; i < numSection; i++ ) { - if ( pCodebookSwitch[i] == 0 && ( pMinOfCbPair[pSortedCodebook[j]] == pCodebook[i] || pMaxOfCbPair[pSortedCodebook[j]] == pCodebook[i] )) { - pCodebookSwitch[i] = 1; - pSortedCodebook[j] = pCodebook[i]; /* sort codebook */ - pNumSortedCodewordInSection[j] = pNumCodewordInSection[i]; /* sort NumCodewordInSection */ - - startOffset = 0; - for ( k = 0; k < i; k++ ) { /* make entry in pReorderOffst */ - startOffset += pNumCodewordInSection[k] << pCbDimShift[pCodebook[k]]; - } - pReorderOffset[j] = startOffset; /* offset for reordering the codewords */ - - if(i == searchStart) { - UINT k = i; - while(pCodebookSwitch[k++] == 1) searchStart++; - } - break; - } - } - } -} - - -/*--------------------------------------------------------------------------------------------- - description: This function calculates the segmentation, which includes numSegment, - leftStartOfSegment, rightStartOfSegment and remainingBitsInSegment. - The segmentation could be visualized a as kind of 'overlay-grid' for the - bitstream-block holding the HCR-encoded quantized-spectral-coefficients. --------------------------------------------------------------------------------------------- */ - -static void HcrPrepareSegmentationGrid(H_HCR_INFO pHcr) -{ - USHORT i,j; - USHORT numSegment = 0; - USHORT segmentStart = 0; - UCHAR segmentWidth; - UCHAR lastSegmentWidth; - UCHAR sortedCodebook; - UCHAR endFlag = 0; - USHORT intermediateResult; - - SCHAR lengthOfLongestCodeword = pHcr->decInOut.lengthOfLongestCodeword; - SHORT lengthOfReorderedSpectralData = pHcr->decInOut.lengthOfReorderedSpectralData; - UINT numSortedSection = pHcr->sectionInfo.numSortedSection; - UCHAR *pSortedCodebook = pHcr->sectionInfo.pSortedCodebook; - USHORT *pNumSortedCodewordInSection = pHcr->sectionInfo.pNumSortedCodewordInSection; - USHORT *pLeftStartOfSegment = pHcr->segmentInfo.pLeftStartOfSegment; - USHORT *pRightStartOfSegment = pHcr->segmentInfo.pRightStartOfSegment; - SCHAR *pRemainingBitsInSegment = pHcr->segmentInfo.pRemainingBitsInSegment; - USHORT bitstreamIndex = pHcr->decInOut.bitstreamIndex; - const UCHAR *pMaxCwLength = pHcr->tableInfo.pMaxCwLength; - - for ( i=numSortedSection; i != 0; i-- ) { - sortedCodebook = *pSortedCodebook++; - segmentWidth = FDKmin(pMaxCwLength[sortedCodebook],lengthOfLongestCodeword); - - for ( j = *pNumSortedCodewordInSection; j != 0 ; j-- ) { - /* width allows a new segment */ - intermediateResult = bitstreamIndex + segmentStart; - if ( (segmentStart + segmentWidth) <= lengthOfReorderedSpectralData ) { - /* store segment start, segment length and increment the number of segments */ - *pLeftStartOfSegment++ = intermediateResult; - *pRightStartOfSegment++ = intermediateResult + segmentWidth - 1; - *pRemainingBitsInSegment++ = segmentWidth; - segmentStart += segmentWidth; - numSegment += 1; - } - /* width does not allow a new segment */ - else { - /* correct the last segment length */ - pLeftStartOfSegment--; - pRightStartOfSegment--; - pRemainingBitsInSegment--; - segmentStart = *pLeftStartOfSegment - bitstreamIndex; - - lastSegmentWidth = lengthOfReorderedSpectralData - segmentStart; - *pRemainingBitsInSegment = lastSegmentWidth; - *pRightStartOfSegment = bitstreamIndex + segmentStart + lastSegmentWidth - 1; - endFlag = 1; - break; - } - } - pNumSortedCodewordInSection++; - if (endFlag != 0) { - break; - } - } - pHcr->segmentInfo.numSegment = numSegment; - -} - - -/*--------------------------------------------------------------------------------------------- - description: This function adapts the sorted section boundaries to the boundaries of - segmentation. If the section lengths does not fit completely into the - current segment, the section is spitted into two so called 'extended - sections'. The extended-section-info (pNumExtendedSortedCodewordInSectin - and pExtendedSortedCodebook) is updated in this case. - --------------------------------------------------------------------------------------------- */ - -static void HcrExtendedSectionInfo(H_HCR_INFO pHcr) -{ - UINT srtSecCnt = 0; /* counter for sorted sections */ - UINT xSrtScCnt = 0; /* counter for extended sorted sections */ - UINT remainNumCwInSortSec; - UINT inSegmentRemainNumCW; - - UINT numSortedSection = pHcr->sectionInfo.numSortedSection; - UCHAR *pSortedCodebook = pHcr->sectionInfo.pSortedCodebook; - USHORT *pNumSortedCodewordInSection = pHcr->sectionInfo.pNumSortedCodewordInSection; - UCHAR *pExtendedSortedCoBo = pHcr->sectionInfo.pExtendedSortedCodebook; - USHORT *pNumExtSortCwInSect = pHcr->sectionInfo.pNumExtendedSortedCodewordInSection; - UINT numSegment = pHcr->segmentInfo.numSegment; -#if DETECT_TOO_LONG_CW_READS - UCHAR *pMaxLenOfCbInExtSrtSec = pHcr->sectionInfo.pMaxLenOfCbInExtSrtSec; - SCHAR lengthOfLongestCodeword = pHcr->decInOut.lengthOfLongestCodeword; - const UCHAR *pMaxCwLength = pHcr->tableInfo.pMaxCwLength; -#endif - - remainNumCwInSortSec = pNumSortedCodewordInSection[srtSecCnt]; - inSegmentRemainNumCW = numSegment; - - while (srtSecCnt < numSortedSection) { - if (inSegmentRemainNumCW < remainNumCwInSortSec) { - - pNumExtSortCwInSect[xSrtScCnt] = inSegmentRemainNumCW; - pExtendedSortedCoBo[xSrtScCnt] = pSortedCodebook[srtSecCnt]; - - remainNumCwInSortSec -= inSegmentRemainNumCW; - inSegmentRemainNumCW = numSegment; - /* data of a sorted section was not integrated in extended sorted section */ - } - else if (inSegmentRemainNumCW == remainNumCwInSortSec) { - pNumExtSortCwInSect[xSrtScCnt] = inSegmentRemainNumCW; - pExtendedSortedCoBo[xSrtScCnt] = pSortedCodebook[srtSecCnt]; - - srtSecCnt++; - remainNumCwInSortSec = pNumSortedCodewordInSection[srtSecCnt]; - inSegmentRemainNumCW = numSegment; - /* data of a sorted section was integrated in extended sorted section */ - } - else { /* inSegmentRemainNumCW > remainNumCwInSortSec */ - pNumExtSortCwInSect[xSrtScCnt] = remainNumCwInSortSec; - pExtendedSortedCoBo[xSrtScCnt] = pSortedCodebook[srtSecCnt]; - - - inSegmentRemainNumCW -= remainNumCwInSortSec; - srtSecCnt++; - remainNumCwInSortSec = pNumSortedCodewordInSection[srtSecCnt]; - /* data of a sorted section was integrated in extended sorted section */ - } -#if DETECT_TOO_LONG_CW_READS - pMaxLenOfCbInExtSrtSec[xSrtScCnt] = FDKmin(pMaxCwLength[pExtendedSortedCoBo[xSrtScCnt]],lengthOfLongestCodeword); -#endif - - - - xSrtScCnt += 1; - - if ( xSrtScCnt >= (MAX_SFB_HCR + MAX_HCR_SETS) ) { - pHcr->decInOut.errorLog |= EXTENDED_SORTED_COUNTER_OVERFLOW; - return; - } - - } - pNumExtSortCwInSect[xSrtScCnt] = 0; - -} - - -/*--------------------------------------------------------------------------------------------- - description: This function calculates the number of extended sorted sections which - belong to the sets. Each set from set 0 (one and only set for the PCWs) - till to the last set gets a entry in the array to which - 'pNumExtendedSortedSectinsInSets' points to. - - Calculation: The entrys in pNumExtendedSortedCodewordInSectin are added - untill the value numSegment is reached. Then the sum_variable is cleared - and the calculation starts from the beginning. As much extended sorted - Sections are summed up to reach the value numSegment, as much is the - current entry in *pNumExtendedSortedCodewordInSectin. --------------------------------------------------------------------------------------------- */ -static void DeriveNumberOfExtendedSortedSectionsInSets(UINT numSegment, - USHORT *pNumExtendedSortedCodewordInSection, - int numExtendedSortedCodewordInSectionIdx, - USHORT *pNumExtendedSortedSectionsInSets, - int numExtendedSortedSectionsInSetsIdx) -{ - USHORT counter = 0; - UINT cwSum = 0; - USHORT *pNumExSortCwInSec = pNumExtendedSortedCodewordInSection; - USHORT *pNumExSortSecInSets = pNumExtendedSortedSectionsInSets; - - while (pNumExSortCwInSec[numExtendedSortedCodewordInSectionIdx] != 0) - { - cwSum += pNumExSortCwInSec[numExtendedSortedCodewordInSectionIdx]; - numExtendedSortedCodewordInSectionIdx++; - if (numExtendedSortedCodewordInSectionIdx >= (MAX_SFB_HCR+MAX_HCR_SETS)) { - return; - } - if (cwSum > numSegment) { - return; - } - counter++; - if (counter > 1024/4) { - return; - } - if ( cwSum == numSegment ) { - pNumExSortSecInSets[numExtendedSortedSectionsInSetsIdx] = counter; - numExtendedSortedSectionsInSetsIdx++; - if (numExtendedSortedSectionsInSetsIdx >= MAX_HCR_SETS) { - return; - } - counter = 0; - cwSum = 0; - } - } - pNumExSortSecInSets[numExtendedSortedSectionsInSetsIdx] = counter; /* save last entry for the last - probably shorter - set */ -} - - -/*--------------------------------------------------------------------------------------------- - description: This function decodes all priority codewords (PCWs) in a spectrum (within - set 0). The calculation of the PCWs is managed in two loops. The - loopcounter of the outer loop is set to the first value pointer - pNumExtendedSortedSectionsInSets points to. This value represents the - number of extended sorted sections within set 0. - The loopcounter of the inner loop is set to the first value pointer - pNumExtendedSortedCodewordInSectin points to. The value represents the - number of extended sorted codewords in sections (the original sections have - been splitted to go along with the borders of the sets). - Each time the number of the extended sorted codewords in sections are de- - coded, the pointer 'pNumExtendedSortedCodewordInSectin' is incremented by - one. --------------------------------------------------------------------------------------------- */ -static void DecodePCWs(HANDLE_FDK_BITSTREAM bs, H_HCR_INFO pHcr) -{ - UINT i; - USHORT extSortSec; - USHORT curExtSortCwInSec; - UCHAR codebook; - UCHAR dimension; - const UINT *pCurrentTree; - const SCHAR *pQuantValBase; - const SCHAR *pQuantVal; - - USHORT *pNumExtendedSortedCodewordInSection = pHcr->sectionInfo.pNumExtendedSortedCodewordInSection; - int numExtendedSortedCodewordInSectionIdx = pHcr->sectionInfo.numExtendedSortedCodewordInSectionIdx; - UCHAR *pExtendedSortedCodebook = pHcr->sectionInfo.pExtendedSortedCodebook; - int extendedSortedCodebookIdx = pHcr->sectionInfo.extendedSortedCodebookIdx; - USHORT *pNumExtendedSortedSectionsInSets = pHcr->sectionInfo.pNumExtendedSortedSectionsInSets; - int numExtendedSortedSectionsInSetsIdx = pHcr->sectionInfo.numExtendedSortedSectionsInSetsIdx; - FIXP_DBL *pQuantizedSpectralCoefficients = SPEC_LONG(pHcr->decInOut.pQuantizedSpectralCoefficientsBase); - int quantizedSpectralCoefficientsIdx = pHcr->decInOut.quantizedSpectralCoefficientsIdx; - USHORT *pLeftStartOfSegment = pHcr->segmentInfo.pLeftStartOfSegment; - SCHAR *pRemainingBitsInSegment = pHcr->segmentInfo.pRemainingBitsInSegment; -#if DETECT_TOO_LONG_CW_READS - UCHAR *pMaxLenOfCbInExtSrtSec = pHcr->sectionInfo.pMaxLenOfCbInExtSrtSec; - int maxLenOfCbInExtSrtSecIdx = pHcr->sectionInfo.maxLenOfCbInExtSrtSecIdx; - UCHAR maxAllowedCwLen; - int numDecodedBits; -#endif - const UCHAR *pCbDimension = pHcr->tableInfo.pCbDimension; - const UCHAR *pCbSign = pHcr->tableInfo.pCbSign; - - /* clear result array */ - //pQSC = &pQuantizedSpectralCoefficients[quantizedSpectralCoefficientsIdx]; - //pQSC = *pQuantizedSpectralCoefficients; - - FDKmemclear(pQuantizedSpectralCoefficients+quantizedSpectralCoefficientsIdx,1024*sizeof(FIXP_DBL)); - - /* decode all PCWs in the extended sorted section(s) belonging to set 0 */ - for ( extSortSec = pNumExtendedSortedSectionsInSets[numExtendedSortedSectionsInSetsIdx]; extSortSec != 0; extSortSec-- ) { - - codebook = pExtendedSortedCodebook[extendedSortedCodebookIdx]; /* get codebook for this extended sorted section and increment ptr to cb of next ext. sort sec */ - extendedSortedCodebookIdx++; - if (extendedSortedCodebookIdx >= (MAX_SFB_HCR+MAX_HCR_SETS)) { - return; - } - dimension = pCbDimension[codebook]; /* get dimension of codebook of this extended sort. sec. */ - pCurrentTree = aHuffTable [codebook]; /* convert codebook to pointer to QSCs */ - pQuantValBase = aQuantTable [codebook]; /* convert codebook to index to table of QSCs */ -#if DETECT_TOO_LONG_CW_READS - maxAllowedCwLen = pMaxLenOfCbInExtSrtSec[maxLenOfCbInExtSrtSecIdx]; - maxLenOfCbInExtSrtSecIdx++; - if (maxLenOfCbInExtSrtSecIdx >= (MAX_SFB_HCR+MAX_HCR_SETS)) { - return; - } -#endif - - /* switch for decoding with different codebooks: */ - if ( pCbSign[codebook] == 0 ) { /* no sign bits follow after the codeword-body */ - /* PCW_BodyONLY */ - /*==============*/ - - for ( curExtSortCwInSec = pNumExtendedSortedCodewordInSection[numExtendedSortedCodewordInSectionIdx] ; curExtSortCwInSec != 0; curExtSortCwInSec--) { - numDecodedBits = 0; - - /* decode PCW_BODY */ - pQuantVal = DecodePCW_Body(bs, - pCurrentTree, - pQuantValBase, - pLeftStartOfSegment, - pRemainingBitsInSegment, - &numDecodedBits - ); - - /* result is written out here because NO sign bits follow the body */ - for( i=dimension; i != 0 ; i-- ) { - pQuantizedSpectralCoefficients[quantizedSpectralCoefficientsIdx] = (FIXP_DBL) *pQuantVal++; /* write quant. spec. coef. into spectrum; sign is already valid */ - quantizedSpectralCoefficientsIdx++; - if (quantizedSpectralCoefficientsIdx >= 1024) { - return; - } - } - - /* one more PCW should be decoded */ - -#if DETECT_TOO_LONG_CW_READS - if ( maxAllowedCwLen < (numDecodedBits + ERROR_PCW_BODY_ONLY_TOO_LONG) ) { - pHcr->decInOut.errorLog |= TOO_MANY_PCW_BODY_BITS_DECODED; - } -#endif - -#if CHECK_SEGMENTATION_IMMEDIATELY - if (1 == errDetectPcwSegmentation(*pRemainingBitsInSegment-ERROR_PCW_BODY,pHcr,PCW_BODY,pQuantizedSpectralCoefficients+quantizedSpectralCoefficientsIdx-dimension,dimension)) { - return; - } -#endif - pLeftStartOfSegment++; /* update pointer for decoding the next PCW */ - pRemainingBitsInSegment++; /* update pointer for decoding the next PCW */ - } - } - else if (( pCbSign[codebook] == 1 ) && ( codebook < 11 )) { /* possibly there follow 1,2,3 or 4 sign bits after the codeword-body */ - /* PCW_Body and PCW_Sign */ - /*=======================*/ - - for ( curExtSortCwInSec = pNumExtendedSortedCodewordInSection[numExtendedSortedCodewordInSectionIdx] ; curExtSortCwInSec != 0; curExtSortCwInSec--) - { - int err; - numDecodedBits = 0; - - pQuantVal = DecodePCW_Body(bs, - pCurrentTree, - pQuantValBase, - pLeftStartOfSegment, - pRemainingBitsInSegment, - &numDecodedBits - ); - - err = DecodePCW_Sign( bs, - dimension, - pQuantVal, - pQuantizedSpectralCoefficients, - &quantizedSpectralCoefficientsIdx, - pLeftStartOfSegment, - pRemainingBitsInSegment, - &numDecodedBits - ); - if (err != 0) { - return; - } - /* one more PCW should be decoded */ - -#if DETECT_TOO_LONG_CW_READS - if ( maxAllowedCwLen < (numDecodedBits + ERROR_PCW_BODY_SIGN_TOO_LONG) ) { - pHcr->decInOut.errorLog |= TOO_MANY_PCW_BODY_SIGN_BITS_DECODED; - } -#endif - -#if CHECK_SEGMENTATION_IMMEDIATELY - if (1 == errDetectPcwSegmentation(*pRemainingBitsInSegment-ERROR_PCW_BODY_SIGN,pHcr,PCW_BODY_SIGN, pQuantizedSpectralCoefficients+quantizedSpectralCoefficientsIdx-dimension,dimension)) { - return; - } -#endif - pLeftStartOfSegment++; - pRemainingBitsInSegment++; - } - } - else if (( pCbSign[codebook] == 1 ) && ( codebook >= 11 )) { /* possibly there follow some sign bits and maybe one or two escape sequences after the cw-body */ - /* PCW_Body, PCW_Sign and maybe PCW_Escape */ - /*=========================================*/ - - for ( curExtSortCwInSec = pNumExtendedSortedCodewordInSection[numExtendedSortedCodewordInSectionIdx] ; curExtSortCwInSec != 0; curExtSortCwInSec--) - { - int err; - numDecodedBits = 0; - - /* decode PCW_BODY */ - pQuantVal = DecodePCW_Body(bs, - pCurrentTree, - pQuantValBase, - pLeftStartOfSegment, - pRemainingBitsInSegment, - &numDecodedBits - ); - - err = DecodePCW_Sign( bs, - dimension, - pQuantVal, - pQuantizedSpectralCoefficients, - &quantizedSpectralCoefficientsIdx, - pLeftStartOfSegment, - pRemainingBitsInSegment, - &numDecodedBits - ); - if (err != 0) { - return; - } - - /* decode PCW_ESCAPE if present */ - quantizedSpectralCoefficientsIdx -= DIMENSION_OF_ESCAPE_CODEBOOK; - - if ( fixp_abs(pQuantizedSpectralCoefficients[quantizedSpectralCoefficientsIdx]) == (FIXP_DBL)ESCAPE_VALUE ) { - pQuantizedSpectralCoefficients[quantizedSpectralCoefficientsIdx] = (FIXP_DBL) DecodeEscapeSequence( bs, - pQuantizedSpectralCoefficients[quantizedSpectralCoefficientsIdx], - pLeftStartOfSegment, - pRemainingBitsInSegment, - &numDecodedBits - ); - } - quantizedSpectralCoefficientsIdx++; - if (quantizedSpectralCoefficientsIdx >= 1024) { - return; - } - - if ( fixp_abs(pQuantizedSpectralCoefficients[quantizedSpectralCoefficientsIdx]) == (FIXP_DBL)ESCAPE_VALUE ) { - pQuantizedSpectralCoefficients[quantizedSpectralCoefficientsIdx] = (FIXP_DBL) DecodeEscapeSequence( bs, - pQuantizedSpectralCoefficients[quantizedSpectralCoefficientsIdx], - pLeftStartOfSegment, - pRemainingBitsInSegment, - &numDecodedBits - ); - } - quantizedSpectralCoefficientsIdx++; - if (quantizedSpectralCoefficientsIdx >= 1024) { - return; - } - - /* one more PCW should be decoded */ - -#if DETECT_TOO_LONG_CW_READS - if ( maxAllowedCwLen < (numDecodedBits + ERROR_PCW_BODY_SIGN_ESC_TOO_LONG) ) { - pHcr->decInOut.errorLog |= TOO_MANY_PCW_BODY_SIGN_ESC_BITS_DECODED; - } -#endif - -#if CHECK_SEGMENTATION_IMMEDIATELY - if (1 == errDetectPcwSegmentation(*pRemainingBitsInSegment-ERROR_PCW_BODY_SIGN_ESC,pHcr,PCW_BODY_SIGN_ESC,pQuantizedSpectralCoefficients+quantizedSpectralCoefficientsIdx-DIMENSION_OF_ESCAPE_CODEBOOK,DIMENSION_OF_ESCAPE_CODEBOOK)) { - return; - } -#endif - pLeftStartOfSegment++; - pRemainingBitsInSegment++; - } - } - - /* all PCWs belonging to this extended section should be decoded */ - numExtendedSortedCodewordInSectionIdx++; - if (numExtendedSortedCodewordInSectionIdx >= MAX_SFB_HCR+MAX_HCR_SETS) { - return; - } - } - /* all PCWs should be decoded */ - - numExtendedSortedSectionsInSetsIdx++; - if (numExtendedSortedSectionsInSetsIdx >= MAX_HCR_SETS) { - return; - } - - /* Write back indexes into structure */ - pHcr->sectionInfo.numExtendedSortedCodewordInSectionIdx = numExtendedSortedCodewordInSectionIdx; - pHcr->sectionInfo.extendedSortedCodebookIdx = extendedSortedCodebookIdx; - pHcr->sectionInfo.numExtendedSortedSectionsInSetsIdx = numExtendedSortedSectionsInSetsIdx; - pHcr->decInOut.quantizedSpectralCoefficientsIdx = quantizedSpectralCoefficientsIdx; - pHcr->sectionInfo.maxLenOfCbInExtSrtSecIdx = maxLenOfCbInExtSrtSecIdx; -} - -#if CHECK_SEGMENTATION_IMMEDIATELY -/*--------------------------------------------------------------------------------------------- - description: This function checks immediately after every decoded PCW, whether out of - the current segment too many bits have been read or not. If an error occurrs, - probably the sideinfo or the HCR-bitstream block holding the huffman - encoded quantized spectral coefficients is distorted. In this case the two - or four quantized spectral coefficients belonging to the current codeword - are marked (for being detected by concealment later). --------------------------------------------------------------------------------------------- */ -static UCHAR errDetectPcwSegmentation(SCHAR remainingBitsInSegment, - H_HCR_INFO pHcr, - PCW_TYPE kind, - FIXP_DBL *qsc_base_of_cw, - UCHAR dimension) -{ - SCHAR i; - if ( remainingBitsInSegment < 0 ) { - /* log the error */ - switch (kind) { - case PCW_BODY: - pHcr->decInOut.errorLog |= SEGMENT_OVERRIDE_ERR_PCW_BODY; - break; - case PCW_BODY_SIGN: - pHcr->decInOut.errorLog |= SEGMENT_OVERRIDE_ERR_PCW_BODY_SIGN; - break; - case PCW_BODY_SIGN_ESC: - pHcr->decInOut.errorLog |= SEGMENT_OVERRIDE_ERR_PCW_BODY_SIGN_ESC; - break; - } - /* mark the erred lines */ - for ( i = dimension; i != 0; i-- ) { - *qsc_base_of_cw++ = (FIXP_DBL) Q_VALUE_INVALID; - } - return 1; - } - return 0; -} -#endif - -#if CHECK_SEGMENTATION_FINAL -/*--------------------------------------------------------------------------------------------- - description: This function checks if all segments are empty after decoding. There - are _no lines markded_ as invalid because it could not be traced back - where from the remaining bits are. --------------------------------------------------------------------------------------------- */ -static void errDetectWithinSegmentationFinal(H_HCR_INFO pHcr) -{ - UCHAR segmentationErrorFlag = 0; - USHORT i; - SCHAR *pRemainingBitsInSegment = pHcr->segmentInfo.pRemainingBitsInSegment; - UINT numSegment = pHcr->segmentInfo.numSegment; - - for ( i=numSegment; i != 0 ; i--) { - if (*pRemainingBitsInSegment++ != 0) { - segmentationErrorFlag = 1; - } - } - if (segmentationErrorFlag == 1) { - pHcr->decInOut.errorLog |= BIT_IN_SEGMENTATION_ERROR; - } -} -#endif - -/*--------------------------------------------------------------------------------------------- - description: This function walks one step within the decoding tree. Which branch is - taken depends on the decoded carryBit input parameter. --------------------------------------------------------------------------------------------- */ -void CarryBitToBranchValue(UCHAR carryBit, - UINT treeNode, - UINT *branchValue, - UINT *branchNode) -{ - if (carryBit == 0) { - *branchNode = (treeNode & MASK_LEFT) >> LEFT_OFFSET; /* MASK_LEFT: 00FFF000 */ - } - else { - *branchNode = treeNode & MASK_RIGHT; /* MASK_RIGHT: 00000FFF */ - } - - *branchValue = *branchNode & CLR_BIT_10; /* clear bit 10 (if set) */ -} - - -/*--------------------------------------------------------------------------------------------- - description: Decodes the body of a priority codeword (PCW) ------------------------------------------------------------------------------------------------ - return: - return value is pointer to first of two or four quantized spectral - coefficients --------------------------------------------------------------------------------------------- */ -static const SCHAR *DecodePCW_Body(HANDLE_FDK_BITSTREAM bs, - const UINT *pCurrentTree, - const SCHAR *pQuantValBase, - USHORT *pLeftStartOfSegment, - SCHAR *pRemainingBitsInSegment, - int *pNumDecodedBits - ) -{ - UCHAR carryBit; - UINT branchNode; - UINT treeNode; - UINT branchValue; - const SCHAR *pQuantVal; - - /* decode PCW_BODY */ - treeNode = *pCurrentTree; /* get first node of current tree belonging to current codebook */ - - /* decode whole PCW-codeword-body */ - while (1) { - - carryBit = HcrGetABitFromBitstream(bs, - pLeftStartOfSegment, - pLeftStartOfSegment, /* dummy */ - FROM_LEFT_TO_RIGHT); - *pRemainingBitsInSegment -= 1; - *pNumDecodedBits += 1; - - CarryBitToBranchValue(carryBit, - treeNode, - &branchValue, - &branchNode); - - if ((branchNode & TEST_BIT_10) == TEST_BIT_10) { /* test bit 10 ; if set --> codeword-body is complete */ - break; /* end of branch in tree reached i.e. a whole PCW-Body is decoded */ - } - else { - treeNode = *(pCurrentTree + branchValue); /* update treeNode for further step in decoding tree */ - } - - } - - pQuantVal = pQuantValBase + branchValue; /* update pointer to valid first of 2 or 4 quantized values */ - - return pQuantVal; -} - - -/*--------------------------------------------------------------------------------------------- - description: This function decodes one escape sequence. In case of a escape codebook - and in case of the absolute value of the quantized spectral value == 16, - a escapeSequence is decoded in two steps: - 1. escape prefix - 2. escape word --------------------------------------------------------------------------------------------- */ - -static INT DecodeEscapeSequence(HANDLE_FDK_BITSTREAM bs, - INT quantSpecCoef, - USHORT *pLeftStartOfSegment, - SCHAR *pRemainingBitsInSegment, - int *pNumDecodedBits - ) -{ - UINT i; - INT sign; - UINT escapeOnesCounter = 0; - UINT carryBit; - INT escape_word = 0; - - /* decode escape prefix */ - while (1) { - carryBit = HcrGetABitFromBitstream(bs, - pLeftStartOfSegment, - pLeftStartOfSegment, /* dummy */ - FROM_LEFT_TO_RIGHT); - *pRemainingBitsInSegment -= 1; - *pNumDecodedBits += 1; - - if (carryBit != 0) { - escapeOnesCounter += 1; - } - else { - escapeOnesCounter += 4; - break; - } - } - - /* decode escape word */ - for( i=escapeOnesCounter; i != 0 ; i-- ) { - carryBit = HcrGetABitFromBitstream(bs, - pLeftStartOfSegment, - pLeftStartOfSegment, /* dummy */ - FROM_LEFT_TO_RIGHT); - *pRemainingBitsInSegment -= 1; - *pNumDecodedBits += 1; - - escape_word <<= 1; - escape_word = escape_word | carryBit; - } - - sign = (quantSpecCoef >= 0) ? 1 : -1; - - quantSpecCoef = sign * (((INT ) 1 << escapeOnesCounter) + escape_word); - - return quantSpecCoef; -} - - -/*--------------------------------------------------------------------------------------------- - description: Decodes the Signbits of a priority codeword (PCW) and writes out the - resulting quantized spectral values into unsorted sections ------------------------------------------------------------------------------------------------ - output: - two or four lines at position in corresponding section (which are not - located at the desired position, i.e. they must be reordered in the last - of eight function of HCR) ------------------------------------------------------------------------------------------------ - return: - updated pQuantSpecCoef pointer (to next empty storage for a line) --------------------------------------------------------------------------------------------- */ -static int DecodePCW_Sign(HANDLE_FDK_BITSTREAM bs, - UINT codebookDim, - const SCHAR *pQuantVal, - FIXP_DBL *pQuantSpecCoef, - int *quantSpecCoefIdx, - USHORT *pLeftStartOfSegment, - SCHAR *pRemainingBitsInSegment, - int *pNumDecodedBits - ) -{ - UINT i; - UINT carryBit; - INT quantSpecCoef; - - for( i=codebookDim; i != 0 ; i-- ) { - quantSpecCoef = *pQuantVal++; - if (quantSpecCoef != 0) { - carryBit = HcrGetABitFromBitstream(bs, - pLeftStartOfSegment, - pLeftStartOfSegment, /* dummy */ - FROM_LEFT_TO_RIGHT); - *pRemainingBitsInSegment -= 1; - *pNumDecodedBits += 1; - if (*pRemainingBitsInSegment < 0 || *pNumDecodedBits >= (1024>>1)) { - return -1; - } - - /* adapt sign of values according to the decoded sign bit */ - if (carryBit != 0) { - pQuantSpecCoef[*quantSpecCoefIdx] = -(FIXP_DBL)quantSpecCoef; - } - else { - pQuantSpecCoef[*quantSpecCoefIdx] = (FIXP_DBL)quantSpecCoef; - } - } - else { - pQuantSpecCoef[*quantSpecCoefIdx] = FL2FXCONST_DBL(0.0f); - } - *quantSpecCoefIdx += 1 ; - if (*quantSpecCoefIdx >= 1024) { - return -1; - } - } - return 0; -} - - -/*--------------------------------------------------------------------------------------------- - description: Mutes spectral lines which have been marked as erroneous (Q_VALUE_INVALID) --------------------------------------------------------------------------------------------- */ -void HcrMuteErroneousLines(H_HCR_INFO hHcr) -{ - int c; - FIXP_DBL *RESTRICT pLong = SPEC_LONG(hHcr->decInOut.pQuantizedSpectralCoefficientsBase); - - /* if there is a line with value Q_VALUE_INVALID mute it */ - for (c = 0; c < 1024; c++) { - if (pLong[c] == (FIXP_DBL)Q_VALUE_INVALID) { -#if HCR_LISTEN_TO_MUTED_LINES - pLong[c] = (FIXP_DBL)HCR_DIRAC; /* marking */ -#else - pLong[c] = FL2FXCONST_DBL(0.0f); /* muting */ -#endif - } - } -} - - -/*--------------------------------------------------------------------------------------------- - description: Sets global HCR type --------------------------------------------------------------------------------------------- */ -void setHcrType(H_HCR_INFO hHcr, MP4_ELEMENT_ID type) -{ - switch (type) { - case ID_SCE: - hHcr->globalHcrType = 0; - break; - case ID_CPE: - hHcr->globalHcrType = 1; - break; - default: - break; - } -} - - -/*--------------------------------------------------------------------------------------------- - description: Gets HCR type from the HCR data structure ------------------------------------------------------------------------------------------------ - return: - global HCR type --------------------------------------------------------------------------------------------- */ -INT getHcrType(H_HCR_INFO hHcr) -{ - return hHcr->globalHcrType; -} - - - - diff --git a/libAACdec/src/aacdec_hcr.h b/libAACdec/src/aacdec_hcr.h deleted file mode 100644 index 6fc527b..0000000 --- a/libAACdec/src/aacdec_hcr.h +++ /dev/null @@ -1,126 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder *************************** - - Author(s): Robert Weidner (DSP Solutions) - Description: HCR Decoder: Interface function declaration; common defines - and structures; defines for switching error-generator, - -detector, and -concealment - -*******************************************************************************/ - -#ifndef _AACDEC_HCR_H_ -#define _AACDEC_HCR_H_ - - - -#include "channelinfo.h" -#include "FDK_bitstream.h" - -void HcrInitRom (H_HCR_INFO hHcr); -UINT HcrInit(H_HCR_INFO pHcr, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - const SamplingRateInfo *pSamplingRateInfo, - HANDLE_FDK_BITSTREAM bs); -UINT HcrDecoder (H_HCR_INFO hHcr, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - const SamplingRateInfo *pSamplingRateInfo, - HANDLE_FDK_BITSTREAM bs); -void CarryBitToBranchValue( - UCHAR carryBit, - UINT treeNode, - UINT *branchValue, - UINT *branchNode - ); - -void CHcr_Read (HANDLE_FDK_BITSTREAM bs, - CAacDecoderChannelInfo *pAacDecoderChannelInfo); -void HcrMuteErroneousLines(H_HCR_INFO hHcr); - -void setHcrType(H_HCR_INFO hHcr, MP4_ELEMENT_ID type); -INT getHcrType(H_HCR_INFO hHcr); - - - -#endif /* _AACDEC_HCR_H_ */ diff --git a/libAACdec/src/aacdec_hcr_bit.cpp b/libAACdec/src/aacdec_hcr_bit.cpp deleted file mode 100644 index df2685b..0000000 --- a/libAACdec/src/aacdec_hcr_bit.cpp +++ /dev/null @@ -1,165 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder *************************** - - Author(s): Robert Weidner (DSP Solutions) - Description: HCR Decoder: Bitstream reading - -*******************************************************************************/ - -#include "aacdec_hcr_bit.h" - - -/*--------------------------------------------------------------------------------------------- - description: This function toggles the read direction. ------------------------------------------------------------------------------------------------ - input: current read direction ------------------------------------------------------------------------------------------------ - return: new read direction --------------------------------------------------------------------------------------------- */ -UCHAR ToggleReadDirection(UCHAR readDirection) -{ - if ( readDirection == FROM_LEFT_TO_RIGHT ) { - return FROM_RIGHT_TO_LEFT; - } - else { - return FROM_LEFT_TO_RIGHT; - } -} - - -/*--------------------------------------------------------------------------------------------- - description: This function returns a bit from the bitstream according to read direction. - It is called very often, therefore it makes sense to inline it (runtime). ------------------------------------------------------------------------------------------------ - input: - handle to FDK bitstream - - reference value marking start of bitfield - - pLeftStartOfSegment - - pRightStartOfSegment - - readDirection ------------------------------------------------------------------------------------------------ - return: - bit from bitstream --------------------------------------------------------------------------------------------- */ -UINT HcrGetABitFromBitstream(HANDLE_FDK_BITSTREAM bs, - USHORT *pLeftStartOfSegment, - USHORT *pRightStartOfSegment, - UCHAR readDirection) -{ - UINT bit; - INT readBitOffset; - - if (readDirection == FROM_LEFT_TO_RIGHT) { - readBitOffset = *pLeftStartOfSegment-FDKgetBitCnt(bs); - if( readBitOffset ) { - FDKpushBiDirectional(bs, readBitOffset); - } - - bit = FDKreadBits(bs, 1); - - *pLeftStartOfSegment += 1; - } - else { - readBitOffset = *pRightStartOfSegment-FDKgetBitCnt(bs); - if( readBitOffset ) { - FDKpushBiDirectional(bs, readBitOffset); - } - - /* to be replaced with a brother function of FDKreadBits() */ - bit = FDKreadBits(bs, 1); - FDKpushBack(bs, 2); - - *pRightStartOfSegment -= 1; - } - - -#if ERROR_GENERATOR_BIT_STREAM_HCR - static int a; - if ((++a % MODULO_DIVISOR_HCR) == 0) { - bit = (bit == 0) ? 1 : 0; - } -#endif - - return (bit); -} - diff --git a/libAACdec/src/aacdec_hcr_bit.h b/libAACdec/src/aacdec_hcr_bit.h deleted file mode 100644 index 8994ff1..0000000 --- a/libAACdec/src/aacdec_hcr_bit.h +++ /dev/null @@ -1,106 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder *************************** - - Author(s): Robert Weidner (DSP Solutions) - Description: HCR Decoder: Bitstream reading prototypes - -*******************************************************************************/ - -#ifndef _AACDEC_HCR_BIT_H_ -#define _AACDEC_HCR_BIT_H_ - - - -#include "aacdec_hcr.h" - -UCHAR ToggleReadDirection(UCHAR readDirection); - -UINT HcrGetABitFromBitstream(HANDLE_FDK_BITSTREAM bs, - USHORT *pLeftStartOfSegment, - USHORT *pRightStartOfSegment, - UCHAR readDirection); - - -#endif /* _AACDEC_HCR_BIT_H_ */ diff --git a/libAACdec/src/aacdec_hcr_types.h b/libAACdec/src/aacdec_hcr_types.h deleted file mode 100644 index 323ec4e..0000000 --- a/libAACdec/src/aacdec_hcr_types.h +++ /dev/null @@ -1,366 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder *************************** - - Author(s): Robert Weidner (DSP Solutions) - Description: HCR Decoder: Common defines and structures; defines for - switching error-generator, -detector, and -concealment; - -*******************************************************************************/ - -#ifndef _AACDEC_HCR_TYPES_H_ -#define _AACDEC_HCR_TYPES_H_ - - - -#include "FDK_bitstream.h" -#include "overlapadd.h" - -/* ------------------------------------------------ */ -/* ------------------------------------------------ */ - -#define LINES_PER_UNIT 4 - -/* ------------------------------------------------ */ -/* ------------------------------------------------ */ -/* ----------- basic HCR configuration ------------ */ - - - #define MAX_SFB_HCR (((1024/8) / LINES_PER_UNIT) * 8) /* (8 * 16) is not enough because sfbs are split in units for blocktype short */ - #define NUMBER_OF_UNIT_GROUPS (LINES_PER_UNIT * 8) - #define LINES_PER_UNIT_GROUP (1024 / NUMBER_OF_UNIT_GROUPS) /* 15 16 30 32 */ - - -/* ------------------------------------------------ */ -/* ------------------------------------------------ */ -/* ------------------------------------------------ */ - -#define FROM_LEFT_TO_RIGHT 0 -#define FROM_RIGHT_TO_LEFT 1 - -#define MAX_CB_PAIRS 23 -#define MAX_HCR_SETS 14 - -#define ESCAPE_VALUE 16 -#define POSITION_OF_FLAG_A 21 -#define POSITION_OF_FLAG_B 20 - -#define MAX_CB 32 /* last used CB is cb #31 when VCB11 is used */ - -#define MAX_CB_CHECK 32 /* support for VCB11 available -- is more general, could therefore used in both cases */ - -#define NUMBER_OF_BIT_IN_WORD 32 - -/* log */ -#define THIRTYTWO_LOG_DIV_TWO_LOG 5 -#define EIGHT_LOG_DIV_TWO_LOG 3 -#define FOUR_LOG_DIV_TWO_LOG 2 - -/* borders */ -#define CPE_TOP_LENGTH 12288 -#define SCE_TOP_LENGTH 6144 -#define LEN_OF_LONGEST_CW_TOP_LENGTH 49 - -/* qsc's of high level */ -#define Q_VALUE_INVALID 8192 /* mark a invalid line with this value (to be concealed later on) */ -#define HCR_DIRAC 500 /* a line of high level */ - -/* masks */ -#define MASK_LEFT 0xFFF000 -#define MASK_RIGHT 0xFFF -#define CLR_BIT_10 0x3FF -#define TEST_BIT_10 0x400 - -#define LEFT_OFFSET 12 - -/* when set HCR is replaced by a dummy-module which just fills the outputbuffer with a dirac sequence */ -/* use this if HCR is suspected to write in other modules -- if error is stell there, HCR is innocent */ -#define USE_HCR_DUMMY 0 - - -/* ------------------------------ */ -/* - insert HCR errors - */ -/* ------------------------------ */ - - /* modify input lengths -- high protected */ -#define ERROR_LORSD 0 /* offset: error if different from zero */ -#define ERROR_LOLC 0 /* offset: error if different from zero */ - - /* segments are earlier empty as expected when decoding PCWs */ -#define ERROR_PCW_BODY 0 /* set a positive values to trigger the error (make segments earlyer appear to be empty) */ -#define ERROR_PCW_BODY_SIGN 0 /* set a positive values to trigger the error (make segments earlyer appear to be empty) */ -#define ERROR_PCW_BODY_SIGN_ESC 0 /* set a positive values to trigger the error (make segments earlyer appear to be empty) */ - - /* pretend there are too many bits decoded (enlarge length of codeword) at PCWs -- use a positive value */ -#define ERROR_PCW_BODY_ONLY_TOO_LONG 0 /* set a positive values to trigger the error */ -#define ERROR_PCW_BODY_SIGN_TOO_LONG 0 /* set a positive values to trigger the error */ -#define ERROR_PCW_BODY_SIGN_ESC_TOO_LONG 0 /* set a positive values to trigger the error */ - - /* modify HCR bitstream block */ -#define ERROR_GENERATOR_BIT_STREAM_HCR 0 /* modify every <MODULO_DIVISOR_HCR>-bit when reading from bitstream */ /* !!! BEWARE!!! if RVLC is active, also RVLC data at ESC2 will be modified !!! */ -#define MODULO_DIVISOR_HCR 30 - - -/* ------------------------------ */ -/* - detect HCR errors - */ -/* ------------------------------ */ - /* check input data */ -#define CHECK_VALID_HCR_INPUT 1 /* it is highly recommended to check input data */ - - /* during decoding */ -#define CHECK_SEGMENTATION_IMMEDIATELY 1 /* the 2 or 4 lines of a detected PCW-decoding-error is marked */ - -#define CHECK_SEGMENTATION_FINAL 1 /* all the segments are checked -- therefore -- if this check passes, its a kind of evidence that the - decoded PCWs and non-PCWs are fine */ - -#define DETECT_TOO_LONG_CW_READS 1 /* if a codeword is decoded there exists a border for the number of bits, which are allowed to read for this - codeword. This border is the minimum of the length of the longest codeword (for the currently used - codebook) and the separately transmitted 'lengthOfLongestCodeword' in this frame and channel. The number - of decoded bits is counted (for PCWs only -- there it makes really sense in my opinion). If this number - exceeds the border (derived as minimum -- see above), a error is detected. */ - -#define STATE_MACHINE_ERROR_CHECK 1 /* test if the number of remaining bits in a segment is _below_ zero. If there are no errors the lowest - allowed value for remainingBitsInSegment is zero. This check also could be set to zero (save runtime) */ - /* other */ -#define VALID_LAV_ERROR_TRIGGER 1 /* when set to '1', avoid setting the LAV-Flag in errorLog due to a previous-line-marking (at PCW decoder). A little - more runtime is needed then when writing values out into output-buffer. */ - -#define HCR_LISTEN_TO_MUTED_LINES 0 /* listen to the "error-concealment" for testing */ - -/* ------------------------------ */ -/* - conceal HCR errors - */ -/* ------------------------------ */ - -#define HCR_ERROR_CONCEALMENT 1 /* if set to '1', HCR _mutes_ the erred quantized spectral coefficients */ - - -// ------------------------------------------------------------------------------------------------------------------ -// errorLog: A word of 32 bits used for logging possible errors within HCR -// in case of distorted bitstreams. Table of all known errors: -// ------------------------------------------------------------------------------------------------------------------------ - // bit fatal location meaning - // ----+-----+-----------+-------------------------------------- -#define SEGMENT_OVERRIDE_ERR_PCW_BODY 0x80000000 // 31 no PCW-Dec During PCW decoding it is checked after every PCW if there are too many bits decoded (immediate check). -#define SEGMENT_OVERRIDE_ERR_PCW_BODY_SIGN 0x40000000 // 30 no PCW-Dec During PCW decoding it is checked after every PCW if there are too many bits decoded (immediate check). -#define SEGMENT_OVERRIDE_ERR_PCW_BODY_SIGN_ESC 0x20000000 // 29 no PCW-Dec During PCW decoding it is checked after every PCW if there are too many bits decoded (immediate check). -#define EXTENDED_SORTED_COUNTER_OVERFLOW 0x10000000 // 28 yes Init-Dec Error during extending sideinfo (neither a PCW nor a nonPCW was decoded so far) - // 0x08000000 // 27 reserved - // 0x04000000 // 26 reserved - // 0x02000000 // 25 reserved - // 0x01000000 // 24 reserved - // 0x00800000 // 23 reserved - // 0x00400000 // 22 reserved - // 0x00200000 // 21 reserved - // 0x00100000 // 20 reserved - - /* special errors */ -#define TOO_MANY_PCW_BODY_BITS_DECODED 0x00080000 // 19 yes PCW-Dec During PCW-body-decoding too many bits have been read from bitstream -- advice: skip non-PCW decoding -#define TOO_MANY_PCW_BODY_SIGN_BITS_DECODED 0x00040000 // 18 yes PCW-Dec During PCW-body-sign-decoding too many bits have been read from bitstream -- advice: skip non-PCW decoding -#define TOO_MANY_PCW_BODY_SIGN_ESC_BITS_DECODED 0x00020000 // 17 yes PCW-Dec During PCW-body-sign-esc-decoding too many bits have been read from bitstream -- advice: skip non-PCW decoding - - - // 0x00010000 // 16 reserved -#define STATE_ERROR_BODY_ONLY 0x00008000 // 15 no NonPCW-Dec State machine returned with error -#define STATE_ERROR_BODY_SIGN__BODY 0x00004000 // 14 no NonPCW-Dec State machine returned with error -#define STATE_ERROR_BODY_SIGN__SIGN 0x00002000 // 13 no NonPCW-Dec State machine returned with error -#define STATE_ERROR_BODY_SIGN_ESC__BODY 0x00001000 // 12 no NonPCW-Dec State machine returned with error -#define STATE_ERROR_BODY_SIGN_ESC__SIGN 0x00000800 // 11 no NonPCW-Dec State machine returned with error -#define STATE_ERROR_BODY_SIGN_ESC__ESC_PREFIX 0x00000400 // 10 no NonPCW-Dec State machine returned with error -#define STATE_ERROR_BODY_SIGN_ESC__ESC_WORD 0x00000200 // 9 no NonPCW-Dec State machine returned with error -#define HCR_SI_LENGTHS_FAILURE 0x00000100 // 8 yes Init-Dec LengthOfLongestCodeword must not be less than lenghtOfReorderedSpectralData -#define NUM_SECT_OUT_OF_RANGE_SHORT_BLOCK 0x00000080 // 7 yes Init-Dec The number of sections is not within the allowed range (short block) -#define NUM_SECT_OUT_OF_RANGE_LONG_BLOCK 0x00000040 // 6 yes Init-Dec The number of sections is not within the allowed range (long block) -#define LINE_IN_SECT_OUT_OF_RANGE_SHORT_BLOCK 0x00000020 // 5 yes Init-Dec The number of lines per section is not within the allowed range (short block) -#define CB_OUT_OF_RANGE_SHORT_BLOCK 0x00000010 // 4 yes Init-Dec The codebook is not within the allowed range (short block) -#define LINE_IN_SECT_OUT_OF_RANGE_LONG_BLOCK 0x00000008 // 3 yes Init-Dec The number of lines per section is not within the allowed range (long block) -#define CB_OUT_OF_RANGE_LONG_BLOCK 0x00000004 // 2 yes Init-Dec The codebook is not within the allowed range (long block) -#define LAV_VIOLATION 0x00000002 // 1 no Final The absolute value of at least one decoded line was too high for the according codebook. -#define BIT_IN_SEGMENTATION_ERROR 0x00000001 // 0 no Final After PCW and non-PWC-decoding at least one segment is not zero (global check). - - /*----------*/ -#define HCR_FATAL_PCW_ERROR_MASK 0x100E01FC - - -typedef enum { - PCW_BODY, - PCW_BODY_SIGN, - PCW_BODY_SIGN_ESC -} PCW_TYPE; - - -/* interface Decoder <---> HCR */ -typedef struct { - UINT errorLog; - SPECTRAL_PTR pQuantizedSpectralCoefficientsBase; - int quantizedSpectralCoefficientsIdx; - SHORT lengthOfReorderedSpectralData; - SHORT numSection; - SHORT *pNumLineInSect; - USHORT bitstreamIndex; - SCHAR lengthOfLongestCodeword; - UCHAR *pCodebook; -} HCR_INPUT_OUTPUT; - -typedef struct { - const UCHAR *pMinOfCbPair; - const UCHAR *pMaxOfCbPair; -} HCR_CB_PAIRS; - -typedef struct{ - const USHORT *pLargestAbsVal; - const UCHAR *pMaxCwLength; - const UCHAR *pCbDimension; - const UCHAR *pCbDimShift; - const UCHAR *pCbSign; - const UCHAR *pCbPriority; -} HCR_TABLE_INFO; - -typedef struct{ - UINT numSegment; - UINT pSegmentBitfield[((1024>>1)/NUMBER_OF_BIT_IN_WORD+1)]; - UINT pCodewordBitfield[((1024>>1)/NUMBER_OF_BIT_IN_WORD+1)]; - UINT segmentOffset; - FIXP_DBL pTempValues[1024]; - USHORT pLeftStartOfSegment[1024>>1]; - USHORT pRightStartOfSegment[1024>>1]; - SCHAR pRemainingBitsInSegment[1024>>1]; - UCHAR readDirection; - UCHAR numWordForBitfield; - USHORT pNumBitValidInLastWord; -} HCR_SEGMENT_INFO; - -typedef struct{ - - UINT numCodeword; - UINT numSortedSection; - USHORT pNumCodewordInSection[MAX_SFB_HCR]; - USHORT pNumSortedCodewordInSection[MAX_SFB_HCR]; - USHORT pNumExtendedSortedCodewordInSection[MAX_SFB_HCR+MAX_HCR_SETS]; - int numExtendedSortedCodewordInSectionIdx; - USHORT pNumExtendedSortedSectionsInSets[MAX_HCR_SETS]; - int numExtendedSortedSectionsInSetsIdx; - USHORT pReorderOffset[MAX_SFB_HCR]; - UCHAR pSortedCodebook[MAX_SFB_HCR]; - - UCHAR pExtendedSortedCodebook[MAX_SFB_HCR+MAX_HCR_SETS]; - int extendedSortedCodebookIdx; -#if DETECT_TOO_LONG_CW_READS - UCHAR pMaxLenOfCbInExtSrtSec[MAX_SFB_HCR+MAX_HCR_SETS]; - int maxLenOfCbInExtSrtSecIdx; -#endif - UCHAR pCodebookSwitch[MAX_SFB_HCR]; -} HCR_SECTION_INFO; - -typedef UINT (*STATEFUNC)(HANDLE_FDK_BITSTREAM, void*); - -typedef struct{ - /* worst-case and 1024/4 non-PCWs exist in worst-case */ - FIXP_DBL *pResultBase; /* Base address for spectral data output target buffer */ - UINT iNode[1024>>2]; /* Helper indices for code books */ - USHORT iResultPointer[1024>>2]; /* Helper indices for accessing pResultBase */ - UINT pEscapeSequenceInfo[1024>>2]; - UINT codewordOffset; - STATEFUNC pState; - UCHAR pCodebook[1024>>2]; - UCHAR pCntSign[1024>>2]; - /* this array holds the states coded as integer values within the range [0,1,..,7] */ - SCHAR pSta[1024>>2]; -} HCR_NON_PCW_SIDEINFO; - -typedef struct{ - HCR_INPUT_OUTPUT decInOut; - HCR_CB_PAIRS cbPairs; - HCR_TABLE_INFO tableInfo; - HCR_SEGMENT_INFO segmentInfo; - HCR_SECTION_INFO sectionInfo; - HCR_NON_PCW_SIDEINFO nonPcwSideinfo; - - INT globalHcrType; -} CErHcrInfo; - - -typedef CErHcrInfo *H_HCR_INFO; - - -#endif /* _AACDEC_HCR_TYPES_H_ */ diff --git a/libAACdec/src/aacdec_hcrs.cpp b/libAACdec/src/aacdec_hcrs.cpp deleted file mode 100644 index c0b2173..0000000 --- a/libAACdec/src/aacdec_hcrs.cpp +++ /dev/null @@ -1,1409 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder *************************** - - Author(s): Robert Weidner (DSP Solutions) - Description: HCR Decoder: Prepare decoding of non-PCWs, segmentation- and - bitfield-handling, HCR-Statemachine - -*******************************************************************************/ - -#include "aacdec_hcrs.h" - - -#include "aacdec_hcr.h" - -#include "aacdec_hcr_bit.h" -#include "aac_rom.h" -#include "aac_ram.h" - - -static UINT InitSegmentBitfield(UINT *pNumSegment, - SCHAR *pRemainingBitsInSegment, - UINT *pSegmentBitfield, - UCHAR *pNumWordForBitfield, - USHORT *pNumBitValidInLastWord); - -static void InitNonPCWSideInformationForCurrentSet(H_HCR_INFO pHcr); - -static INT ModuloValue(INT input, INT bufferlength); - -static void ClearBitFromBitfield(STATEFUNC *ptrState, - UINT offset, - UINT *pBitfield); - - -/*--------------------------------------------------------------------------------------------- - description: This function decodes all non-priority codewords (non-PCWs) by using a - state-machine. --------------------------------------------------------------------------------------------- */ -void DecodeNonPCWs(HANDLE_FDK_BITSTREAM bs, H_HCR_INFO pHcr) -{ - UINT numValidSegment; - INT segmentOffset; - INT codewordOffsetBase; - INT codewordOffset; - UINT trial; - - UINT *pNumSegment; - SCHAR *pRemainingBitsInSegment; - UINT *pSegmentBitfield; - UCHAR *pNumWordForBitfield; - USHORT *pNumBitValidInLastWord; - UINT *pCodewordBitfield; - INT bitfieldWord; - INT bitInWord; - UINT tempWord; - UINT interMediateWord; - INT tempBit; - INT carry; - - UINT numCodeword; - UCHAR numSet; - UCHAR currentSet; - UINT codewordInSet; - UINT remainingCodewordsInSet; - SCHAR *pSta; - UINT ret; - - pNumSegment = &(pHcr->segmentInfo.numSegment); - pRemainingBitsInSegment = pHcr->segmentInfo.pRemainingBitsInSegment; - pSegmentBitfield = pHcr->segmentInfo.pSegmentBitfield; - pNumWordForBitfield = &(pHcr->segmentInfo.numWordForBitfield); - pNumBitValidInLastWord = &(pHcr->segmentInfo.pNumBitValidInLastWord); - pSta = pHcr->nonPcwSideinfo.pSta; - - numValidSegment = InitSegmentBitfield(pNumSegment, - pRemainingBitsInSegment, - pSegmentBitfield, - pNumWordForBitfield, - pNumBitValidInLastWord); - - if ( numValidSegment != 0 ) { - numCodeword = pHcr->sectionInfo.numCodeword; - numSet = ((numCodeword - 1) / *pNumSegment) + 1; - - - pHcr->segmentInfo.readDirection = FROM_RIGHT_TO_LEFT; - - /* Process sets subsequently */ - for ( currentSet = 1; currentSet < numSet ; currentSet++ ) { - - - - /* step 1 */ - numCodeword -= *pNumSegment; /* number of remaining non PCWs [for all sets] */ - if ( numCodeword < *pNumSegment ) { - codewordInSet = numCodeword; /* for last set */ - } - else { - codewordInSet = *pNumSegment; /* for all sets except last set */ - } - - /* step 2 */ - /* prepare array 'CodewordBitfield'; as much ones are written from left in all words, as much decodedCodewordInSetCounter nonPCWs exist in this set */ - tempWord = 0xFFFFFFFF; - pCodewordBitfield = pHcr->segmentInfo.pCodewordBitfield; - - for ( bitfieldWord = *pNumWordForBitfield; bitfieldWord !=0; bitfieldWord-- ) { /* loop over all used words */ - if ( codewordInSet > NUMBER_OF_BIT_IN_WORD ) { /* more codewords than number of bits => fill ones */ - /* fill a whole word with ones */ - *pCodewordBitfield++ = tempWord; - codewordInSet -= NUMBER_OF_BIT_IN_WORD; /* subtract number of bits */ - } - else { - /* prepare last tempWord */ - for (remainingCodewordsInSet = codewordInSet; remainingCodewordsInSet < NUMBER_OF_BIT_IN_WORD ; remainingCodewordsInSet++ ) { - tempWord = tempWord & ~(1 << (NUMBER_OF_BIT_IN_WORD-1-remainingCodewordsInSet)); /* set a zero at bit number (NUMBER_OF_BIT_IN_WORD-1-i) in tempWord */ - } - *pCodewordBitfield++ = tempWord; - tempWord = 0x00000000; - } - } - pCodewordBitfield = pHcr->segmentInfo.pCodewordBitfield; - - /* step 3 */ - /* build non-PCW sideinfo for each non-PCW of the current set */ - InitNonPCWSideInformationForCurrentSet(pHcr); - - /* step 4 */ - /* decode all non-PCWs belonging to this set */ - - /* loop over trials */ - codewordOffsetBase = 0; - for ( trial = *pNumSegment; trial > 0; trial-- ) { - - /* loop over number of words in bitfields */ - segmentOffset = 0; /* start at zero in every segment */ - pHcr->segmentInfo.segmentOffset = segmentOffset; /* store in structure for states */ - codewordOffset = codewordOffsetBase; - pHcr->nonPcwSideinfo.codewordOffset = codewordOffset; /* store in structure for states */ - - for ( bitfieldWord=0; bitfieldWord < *pNumWordForBitfield; bitfieldWord++ ) { - - /* derive tempWord with bitwise and */ - tempWord = pSegmentBitfield[bitfieldWord] & pCodewordBitfield[bitfieldWord]; - - /* if tempWord is not zero, decode something */ - if ( tempWord != 0 ) { - - - /* loop over all bits in tempWord; start state machine if & is true */ - for ( bitInWord = NUMBER_OF_BIT_IN_WORD; bitInWord > 0; bitInWord-- ) { - - interMediateWord = ((UINT)1 << (bitInWord-1) ); - if ( ( tempWord & interMediateWord ) == interMediateWord ) { - - /* get state and start state machine */ - pHcr->nonPcwSideinfo.pState = aStateConstant2State[pSta[codewordOffset]]; - - while(pHcr->nonPcwSideinfo.pState) { - ret = ((STATEFUNC) pHcr->nonPcwSideinfo.pState)(bs, pHcr); -#if STATE_MACHINE_ERROR_CHECK - if ( ret != 0 ) { - return; - } -#endif - } - } - - /* update both offsets */ - segmentOffset += 1; /* add NUMBER_OF_BIT_IN_WORD times one */ - pHcr->segmentInfo.segmentOffset = segmentOffset; - codewordOffset += 1; /* add NUMBER_OF_BIT_IN_WORD times one */ - codewordOffset = ModuloValue(codewordOffset,*pNumSegment); /* index of the current codeword lies within modulo range */ - pHcr->nonPcwSideinfo.codewordOffset = codewordOffset; - } - } - else { - segmentOffset += NUMBER_OF_BIT_IN_WORD; /* add NUMBER_OF_BIT_IN_WORD at once */ - pHcr->segmentInfo.segmentOffset = segmentOffset; - codewordOffset += NUMBER_OF_BIT_IN_WORD; /* add NUMBER_OF_BIT_IN_WORD at once */ - codewordOffset = ModuloValue(codewordOffset,*pNumSegment); /* index of the current codeword lies within modulo range */ - pHcr->nonPcwSideinfo.codewordOffset = codewordOffset; - } - } /* end of bitfield word loop */ - - /* decrement codeword - pointer */ - codewordOffsetBase -= 1; - codewordOffsetBase = ModuloValue(codewordOffsetBase,*pNumSegment); /* index of the current codeword base lies within modulo range */ - - /* rotate numSegment bits in codewordBitfield */ - /* rotation of *numSegment bits in bitfield of codewords (circle-rotation) */ - /* get last valid bit */ - tempBit = pCodewordBitfield[*pNumWordForBitfield-1] & (1 << (NUMBER_OF_BIT_IN_WORD - *pNumBitValidInLastWord)); - tempBit = tempBit >> (NUMBER_OF_BIT_IN_WORD - *pNumBitValidInLastWord); - - /* write zero into place where tempBit was fetched from */ - pCodewordBitfield[*pNumWordForBitfield-1] = pCodewordBitfield[*pNumWordForBitfield-1] & ~(1 << (NUMBER_OF_BIT_IN_WORD - *pNumBitValidInLastWord)); - - /* rotate last valid word */ - pCodewordBitfield[*pNumWordForBitfield-1] = pCodewordBitfield[*pNumWordForBitfield-1] >> 1; - - /* transfare carry bit 0 from current word into bitposition 31 from next word and rotate current word */ - for ( bitfieldWord = *pNumWordForBitfield-2; bitfieldWord > -1 ; bitfieldWord-- ) { - /* get carry (=bit at position 0) from current word */ - carry = pCodewordBitfield[bitfieldWord] & 1; - - /* put the carry bit at position 31 into word right from current word */ - pCodewordBitfield[bitfieldWord+1] = pCodewordBitfield[bitfieldWord+1] | (carry << (NUMBER_OF_BIT_IN_WORD-1)); - - /* shift current word */ - pCodewordBitfield[bitfieldWord] = pCodewordBitfield[bitfieldWord] >> 1; - } - - /* put tempBit into free bit-position 31 from first word */ - pCodewordBitfield[0] = pCodewordBitfield[0] | (tempBit << (NUMBER_OF_BIT_IN_WORD-1)); - - } /* end of trial loop */ - - /* toggle read direction */ - pHcr->segmentInfo.readDirection = ToggleReadDirection(pHcr->segmentInfo.readDirection); - - } - /* end of set loop */ - - /* all non-PCWs of this spectrum are decoded */ - } - - /* all PCWs and all non PCWs are decoded. They are unbacksorted in output buffer. Here is the Interface with comparing QSCs to asm decoding */ -} - - -/*--------------------------------------------------------------------------------------------- - description: This function prepares the bitfield used for the - segments. The list is set up once to be used in all following sets. If a - segment is decoded empty, the according bit from the Bitfield is removed. ------------------------------------------------------------------------------------------------ - return: numValidSegment = the number of valid segments --------------------------------------------------------------------------------------------- */ -static UINT InitSegmentBitfield(UINT *pNumSegment, - SCHAR *pRemainingBitsInSegment, - UINT *pSegmentBitfield, - UCHAR *pNumWordForBitfield, - USHORT *pNumBitValidInLastWord) -{ - SHORT i; - USHORT r; - UCHAR bitfieldWord; - UINT tempWord; - USHORT numValidSegment; - - *pNumWordForBitfield = ((*pNumSegment-1) >> THIRTYTWO_LOG_DIV_TWO_LOG) + 1; - - /* loop over all words, which are completely used or only partial */ - /* bit in pSegmentBitfield is zero if segment is empty; bit in pSegmentBitfield is one if segment is not empty */ - numValidSegment = 0; - *pNumBitValidInLastWord = *pNumSegment; - - /* loop over words */ - for ( bitfieldWord=0; bitfieldWord < *pNumWordForBitfield - 1; bitfieldWord++ ) { - tempWord = 0xFFFFFFFF; /* set ones */ - r = bitfieldWord << THIRTYTWO_LOG_DIV_TWO_LOG; - for ( i=0; i < NUMBER_OF_BIT_IN_WORD; i++) { - if ( pRemainingBitsInSegment[r + i] == 0 ) { - tempWord = tempWord & ~(1 << (NUMBER_OF_BIT_IN_WORD-1-i)); /* set a zero at bit number (NUMBER_OF_BIT_IN_WORD-1-i) in tempWord */ - } - else { - numValidSegment += 1; /* count segments which are not empty */ - } - } - pSegmentBitfield[bitfieldWord] = tempWord; /* store result */ - *pNumBitValidInLastWord -= NUMBER_OF_BIT_IN_WORD; /* calculate number of zeros on LSB side in the last word */ - } - - - /* calculate last word: prepare special tempWord */ - tempWord = 0xFFFFFFFF; - for ( i=0; i < ( NUMBER_OF_BIT_IN_WORD - *pNumBitValidInLastWord ); i++ ) { - tempWord = tempWord & ~(1 << i); /* clear bit i in tempWord */ - } - - /* calculate last word */ - r = bitfieldWord << THIRTYTWO_LOG_DIV_TWO_LOG; - for ( i=0; i<*pNumBitValidInLastWord; i++) { - if ( pRemainingBitsInSegment[r + i] == 0 ) { - tempWord = tempWord & ~(1 << (NUMBER_OF_BIT_IN_WORD-1-i)); /* set a zero at bit number (NUMBER_OF_BIT_IN_WORD-1-i) in tempWord */ - } - else { - numValidSegment += 1; /* count segments which are not empty */ - } - } - pSegmentBitfield[bitfieldWord] = tempWord; /* store result */ - - - - return numValidSegment; -} - - -/*--------------------------------------------------------------------------------------------- - description: This function sets up sideinfo for the non-PCW decoder (for the current set). ----------------------------------------------------------------------------------------------*/ -static void InitNonPCWSideInformationForCurrentSet(H_HCR_INFO pHcr) -{ - USHORT i,k; - UCHAR codebookDim; - UINT startNode; - - UCHAR *pCodebook = pHcr->nonPcwSideinfo.pCodebook; - UINT *iNode = pHcr->nonPcwSideinfo.iNode; - UCHAR *pCntSign = pHcr->nonPcwSideinfo.pCntSign; - USHORT *iResultPointer = pHcr->nonPcwSideinfo.iResultPointer; - UINT *pEscapeSequenceInfo = pHcr->nonPcwSideinfo.pEscapeSequenceInfo; - SCHAR *pSta = pHcr->nonPcwSideinfo.pSta; - USHORT *pNumExtendedSortedCodewordInSection = pHcr->sectionInfo.pNumExtendedSortedCodewordInSection; - int numExtendedSortedCodewordInSectionIdx = pHcr->sectionInfo.numExtendedSortedCodewordInSectionIdx; - UCHAR *pExtendedSortedCodebook = pHcr->sectionInfo.pExtendedSortedCodebook; - int extendedSortedCodebookIdx = pHcr->sectionInfo.extendedSortedCodebookIdx; - USHORT *pNumExtendedSortedSectionsInSets = pHcr->sectionInfo.pNumExtendedSortedSectionsInSets; - int numExtendedSortedSectionsInSetsIdx = pHcr->sectionInfo.numExtendedSortedSectionsInSetsIdx; - FIXP_DBL *pQuantizedSpectralCoefficients = SPEC_LONG(pHcr->decInOut.pQuantizedSpectralCoefficientsBase); - int quantizedSpectralCoefficientsIdx = pHcr->decInOut.quantizedSpectralCoefficientsIdx; - const UCHAR *pCbDimension = pHcr->tableInfo.pCbDimension; - int iterationCounter = 0; - - /* loop over number of extended sorted sections in the current set so all codewords sideinfo variables within this set can be prepared for decoding */ - for ( i=pNumExtendedSortedSectionsInSets[numExtendedSortedSectionsInSetsIdx]; i != 0; i-- ) { - - codebookDim = pCbDimension[pExtendedSortedCodebook[extendedSortedCodebookIdx]]; - startNode = *aHuffTable[pExtendedSortedCodebook[extendedSortedCodebookIdx]]; - - for ( k = pNumExtendedSortedCodewordInSection[numExtendedSortedCodewordInSectionIdx]; k != 0; k-- ) { - iterationCounter++; - if (iterationCounter > (1024>>2)) { - return; - } - *pSta++ = aCodebook2StartInt[pExtendedSortedCodebook[extendedSortedCodebookIdx]]; - *pCodebook++ = pExtendedSortedCodebook[extendedSortedCodebookIdx]; - *iNode++ = startNode; - *pCntSign++ = 0; - *iResultPointer++ = quantizedSpectralCoefficientsIdx; - *pEscapeSequenceInfo++ = 0; - quantizedSpectralCoefficientsIdx += codebookDim; /* update pointer by codebookDim --> point to next starting value for writing out */ - if (quantizedSpectralCoefficientsIdx >= 1024) { - return; - } - } - numExtendedSortedCodewordInSectionIdx++; /* inc ptr for next ext sort sec in current set */ - extendedSortedCodebookIdx++; /* inc ptr for next ext sort sec in current set */ - if (numExtendedSortedCodewordInSectionIdx >= (MAX_SFB_HCR+MAX_HCR_SETS) || extendedSortedCodebookIdx >= (MAX_SFB_HCR+MAX_HCR_SETS)) { - return; - } - } - numExtendedSortedSectionsInSetsIdx++; /* inc ptr for next set of non-PCWs */ - if (numExtendedSortedCodewordInSectionIdx >= (MAX_SFB_HCR+MAX_HCR_SETS)) { - return; - } - - /* Write back indexes */ - pHcr->sectionInfo.numExtendedSortedCodewordInSectionIdx = numExtendedSortedCodewordInSectionIdx; - pHcr->sectionInfo.extendedSortedCodebookIdx = extendedSortedCodebookIdx; - pHcr->sectionInfo.numExtendedSortedSectionsInSetsIdx = numExtendedSortedSectionsInSetsIdx; - pHcr->sectionInfo.numExtendedSortedCodewordInSectionIdx = numExtendedSortedCodewordInSectionIdx; - pHcr->decInOut.quantizedSpectralCoefficientsIdx = quantizedSpectralCoefficientsIdx; -} - - -/*--------------------------------------------------------------------------------------------- - description: This function returns the input value if the value is in the - range of bufferlength. If <input> is smaller, one bufferlength is added, - if <input> is bigger one bufferlength is subtracted. ------------------------------------------------------------------------------------------------ - return: modulo result --------------------------------------------------------------------------------------------- */ -static INT ModuloValue(INT input, INT bufferlength) -{ - if ( input > (bufferlength - 1) ) { - return (input - bufferlength); - } - if ( input < 0 ) { - return (input + bufferlength); - } - return input; -} - - -/*--------------------------------------------------------------------------------------------- - description: This function clears a bit from current bitfield and - switches off the statemachine. - - A bit is cleared in two cases: - a) a codeword is decoded, then a bit is cleared in codeword bitfield - b) a segment is decoded empty, then a bit is cleared in segment bitfield --------------------------------------------------------------------------------------------- */ -static void ClearBitFromBitfield(STATEFUNC *ptrState, - UINT offset, - UINT *pBitfield) -{ - UINT numBitfieldWord; - UINT numBitfieldBit; - - /* get both values needed for clearing the bit */ - numBitfieldWord = offset >> THIRTYTWO_LOG_DIV_TWO_LOG; /* int = wordNr */ - numBitfieldBit = offset - (numBitfieldWord << THIRTYTWO_LOG_DIV_TWO_LOG); /* fract = bitNr */ - - /* clear a bit in bitfield */ - pBitfield[numBitfieldWord] = pBitfield[numBitfieldWord] & ~(1 << (NUMBER_OF_BIT_IN_WORD-1 - numBitfieldBit)); - - /* switch off state machine because codeword is decoded and/or because segment is empty */ - *ptrState = NULL; -} - - - -/* ========================================================================================= - the states of the statemachine - ========================================================================================= */ - - -/*--------------------------------------------------------------------------------------------- - description: Decodes the body of a codeword. This State is used for codebooks 1,2,5 and 6. - No sign bits are decoded, because the table of the quantized spectral values - has got a valid sign at the quantized spectral lines. ------------------------------------------------------------------------------------------------ - output: Two or four quantizes spectral values written at position where pResultPointr - points to ------------------------------------------------------------------------------------------------ - return: 0 --------------------------------------------------------------------------------------------- */ -UINT Hcr_State_BODY_ONLY(HANDLE_FDK_BITSTREAM bs, void *ptr) -{ - H_HCR_INFO pHcr = (H_HCR_INFO)ptr; - UINT *pSegmentBitfield; - UINT *pCodewordBitfield; - UINT segmentOffset; - FIXP_DBL *pResultBase; - UINT *iNode; - USHORT *iResultPointer; - UINT codewordOffset; - UINT branchNode; - UINT branchValue; - UINT iQSC; - UINT treeNode; - UCHAR carryBit; - USHORT *pLeftStartOfSegment; - USHORT *pRightStartOfSegment; - SCHAR *pRemainingBitsInSegment; - UCHAR readDirection; - UCHAR *pCodebook; - UCHAR dimCntr; - const UINT *pCurrentTree; - const UCHAR *pCbDimension; - const SCHAR *pQuantVal; - const SCHAR *pQuantValBase; - - pRemainingBitsInSegment = pHcr->segmentInfo.pRemainingBitsInSegment; - pLeftStartOfSegment = pHcr->segmentInfo.pLeftStartOfSegment; - pRightStartOfSegment = pHcr->segmentInfo.pRightStartOfSegment; - readDirection = pHcr->segmentInfo.readDirection; - pSegmentBitfield = pHcr->segmentInfo.pSegmentBitfield; - pCodewordBitfield = pHcr->segmentInfo.pCodewordBitfield; - segmentOffset = pHcr->segmentInfo.segmentOffset; - - pCodebook = pHcr->nonPcwSideinfo.pCodebook; - iNode = pHcr->nonPcwSideinfo.iNode; - pResultBase = pHcr->nonPcwSideinfo.pResultBase; - iResultPointer = pHcr->nonPcwSideinfo.iResultPointer; - codewordOffset = pHcr->nonPcwSideinfo.codewordOffset; - - pCbDimension = pHcr->tableInfo.pCbDimension; - - treeNode = iNode[codewordOffset]; - pCurrentTree = aHuffTable[pCodebook[codewordOffset]]; - - - for ( ; pRemainingBitsInSegment[segmentOffset] > 0 ; pRemainingBitsInSegment[segmentOffset] -= 1 ) { - - carryBit = HcrGetABitFromBitstream( bs, - &pLeftStartOfSegment[segmentOffset], - &pRightStartOfSegment[segmentOffset], - readDirection); - - CarryBitToBranchValue(carryBit, /* make a step in decoding tree */ - treeNode, - &branchValue, - &branchNode); - - /* if end of branch reached write out lines and count bits needed for sign, otherwise store node in codeword sideinfo */ - if ((branchNode & TEST_BIT_10) == TEST_BIT_10) { /* test bit 10 ; ==> body is complete */ - pQuantValBase = aQuantTable[pCodebook[codewordOffset]]; /* get base address of quantized values belonging to current codebook */ - pQuantVal = pQuantValBase + branchValue; /* set pointer to first valid line [of 2 or 4 quantized values] */ - - iQSC = iResultPointer[codewordOffset]; /* get position of first line for writing out result */ - - for ( dimCntr = pCbDimension[pCodebook[codewordOffset]]; dimCntr != 0; dimCntr-- ) { - pResultBase[iQSC++] = (FIXP_DBL)*pQuantVal++; /* write out 2 or 4 lines into spectrum; no Sign bits available in this state */ - } - - ClearBitFromBitfield(&(pHcr->nonPcwSideinfo.pState), - segmentOffset, - pCodewordBitfield); /* clear a bit in bitfield and switch off statemachine */ - pRemainingBitsInSegment[segmentOffset] -= 1; /* last reinitialzation of for loop counter (see above) is done here */ - break; /* end of branch in tree reached i.e. a whole nonPCW-Body is decoded */ - } - else { /* body is not decoded completely: */ - treeNode = *(pCurrentTree + branchValue); /* update treeNode for further step in decoding tree */ - } - } - iNode[codewordOffset] = treeNode; /* store updated treeNode because maybe decoding of codeword body not finished yet */ - - if ( pRemainingBitsInSegment[segmentOffset] <= 0 ) { - ClearBitFromBitfield(&(pHcr->nonPcwSideinfo.pState), - segmentOffset, - pSegmentBitfield); /* clear a bit in bitfield and switch off statemachine */ - -#if STATE_MACHINE_ERROR_CHECK - if ( pRemainingBitsInSegment[segmentOffset] < 0 ) { - pHcr->decInOut.errorLog |= STATE_ERROR_BODY_ONLY; - return BODY_ONLY; - } -#endif - } - - return STOP_THIS_STATE; -} - - -/*--------------------------------------------------------------------------------------------- - description: Decodes the codeword body, writes out result and counts the number of quantized - spectral values, which are different form zero. For those values sign bits are - needed. - - If sign bit counter cntSign is different from zero, switch to next state to - decode sign Bits there. - If sign bit counter cntSign is zero, no sign bits are needed and codeword is - decoded. ------------------------------------------------------------------------------------------------ - output: Two or four written quantizes spectral values written at position where - pResultPointr points to. The signs of those lines may be wrong. If the signs - [on just one signle sign] is wrong, the next state will correct it. ------------------------------------------------------------------------------------------------ - return: 0 --------------------------------------------------------------------------------------------- */ -UINT Hcr_State_BODY_SIGN__BODY(HANDLE_FDK_BITSTREAM bs, void *ptr) -{ - H_HCR_INFO pHcr = (H_HCR_INFO)ptr; - SCHAR *pRemainingBitsInSegment; - USHORT *pLeftStartOfSegment; - USHORT *pRightStartOfSegment; - UCHAR readDirection; - UINT *pSegmentBitfield; - UINT *pCodewordBitfield; - UINT segmentOffset; - - UCHAR *pCodebook; - UINT *iNode; - UCHAR *pCntSign; - FIXP_DBL *pResultBase; - USHORT *iResultPointer; - UINT codewordOffset; - - UINT iQSC; - UINT cntSign; - UCHAR dimCntr; - UCHAR carryBit; - SCHAR *pSta; - UINT treeNode; - UINT branchValue; - UINT branchNode; - const UCHAR *pCbDimension; - const UINT *pCurrentTree; - const SCHAR *pQuantValBase; - const SCHAR *pQuantVal; - - pRemainingBitsInSegment = pHcr->segmentInfo.pRemainingBitsInSegment; - pLeftStartOfSegment = pHcr->segmentInfo.pLeftStartOfSegment; - pRightStartOfSegment = pHcr->segmentInfo.pRightStartOfSegment; - readDirection = pHcr->segmentInfo.readDirection; - pSegmentBitfield = pHcr->segmentInfo.pSegmentBitfield; - pCodewordBitfield = pHcr->segmentInfo.pCodewordBitfield; - segmentOffset = pHcr->segmentInfo.segmentOffset; - - pCodebook = pHcr->nonPcwSideinfo.pCodebook; - iNode = pHcr->nonPcwSideinfo.iNode; - pCntSign = pHcr->nonPcwSideinfo.pCntSign; - pResultBase = pHcr->nonPcwSideinfo.pResultBase; - iResultPointer = pHcr->nonPcwSideinfo.iResultPointer; - codewordOffset = pHcr->nonPcwSideinfo.codewordOffset; - pSta = pHcr->nonPcwSideinfo.pSta; - - pCbDimension = pHcr->tableInfo.pCbDimension; - - treeNode = iNode[codewordOffset]; - pCurrentTree = aHuffTable[pCodebook[codewordOffset]]; - - - for ( ; pRemainingBitsInSegment[segmentOffset] > 0 ; pRemainingBitsInSegment[segmentOffset] -= 1 ) { - - carryBit = HcrGetABitFromBitstream( bs, - &pLeftStartOfSegment[segmentOffset], - &pRightStartOfSegment[segmentOffset], - readDirection); - - CarryBitToBranchValue(carryBit, /* make a step in decoding tree */ - treeNode, - &branchValue, - &branchNode); - - /* if end of branch reached write out lines and count bits needed for sign, otherwise store node in codeword sideinfo */ - if ((branchNode & TEST_BIT_10) == TEST_BIT_10) { /* test bit 10 ; if set body complete */ - /* body completely decoded; branchValue is valid, set pQuantVal to first (of two or four) quantized spectral coefficients */ - pQuantValBase = aQuantTable[pCodebook[codewordOffset]]; /* get base address of quantized values belonging to current codebook */ - pQuantVal = pQuantValBase + branchValue; /* set pointer to first valid line [of 2 or 4 quantized values] */ - - iQSC = iResultPointer[codewordOffset]; /* get position of first line for writing result */ - - /* codeword decoding result is written out here: Write out 2 or 4 quantized spectral values with probably */ - /* wrong sign and count number of values which are different from zero for sign bit decoding [which happens in next state] */ - cntSign = 0; - for ( dimCntr = pCbDimension[pCodebook[codewordOffset]]; dimCntr != 0; dimCntr-- ) { - pResultBase[iQSC++] = (FIXP_DBL)*pQuantVal; /* write quant. spec. coef. into spectrum */ - if ( *pQuantVal++ != 0 ) { - cntSign += 1; - } - } - - if ( cntSign == 0 ) { - ClearBitFromBitfield(&(pHcr->nonPcwSideinfo.pState), - segmentOffset, - pCodewordBitfield); /* clear a bit in bitfield and switch off statemachine */ - } - else { - pCntSign[codewordOffset] = cntSign; /* write sign count result into codewordsideinfo of current codeword */ - pSta[codewordOffset] = BODY_SIGN__SIGN; /* change state */ - pHcr->nonPcwSideinfo.pState = aStateConstant2State[pSta[codewordOffset]]; /* get state from separate array of cw-sideinfo */ - } - pRemainingBitsInSegment[segmentOffset] -= 1; /* last reinitialzation of for loop counter (see above) is done here */ - break; /* end of branch in tree reached i.e. a whole nonPCW-Body is decoded */ - } - else {/* body is not decoded completely: */ - treeNode = *(pCurrentTree + branchValue); /* update treeNode for further step in decoding tree */ - } - } - iNode[codewordOffset] = treeNode; /* store updated treeNode because maybe decoding of codeword body not finished yet */ - - if ( pRemainingBitsInSegment[segmentOffset] <= 0 ) { - ClearBitFromBitfield(&(pHcr->nonPcwSideinfo.pState), - segmentOffset, - pSegmentBitfield); /* clear a bit in bitfield and switch off statemachine */ - -#if STATE_MACHINE_ERROR_CHECK - if ( pRemainingBitsInSegment[segmentOffset] < 0 ) { - pHcr->decInOut.errorLog |= STATE_ERROR_BODY_SIGN__BODY; - return BODY_SIGN__BODY; - } -#endif - } - - return STOP_THIS_STATE; -} - - -/*--------------------------------------------------------------------------------------------- - description: This state decodes the sign bits belonging to a codeword. The state is called - as often in different "trials" until pCntSgn[codewordOffset] is zero. ------------------------------------------------------------------------------------------------ - output: The two or four quantizes spectral values (written in previous state) have - now the correct sign. ------------------------------------------------------------------------------------------------ - return: 0 --------------------------------------------------------------------------------------------- */ -UINT Hcr_State_BODY_SIGN__SIGN(HANDLE_FDK_BITSTREAM bs, void *ptr) -{ - H_HCR_INFO pHcr = (H_HCR_INFO)ptr; - SCHAR *pRemainingBitsInSegment; - USHORT *pLeftStartOfSegment; - USHORT *pRightStartOfSegment; - UCHAR readDirection; - UINT *pSegmentBitfield; - UINT *pCodewordBitfield; - UINT segmentOffset; - - UCHAR *pCntSign; - FIXP_DBL *pResultBase; - USHORT *iResultPointer; - UINT codewordOffset; - UCHAR carryBit; - UINT iQSC; - UCHAR cntSign; - - pRemainingBitsInSegment = pHcr->segmentInfo.pRemainingBitsInSegment; - pLeftStartOfSegment = pHcr->segmentInfo.pLeftStartOfSegment; - pRightStartOfSegment = pHcr->segmentInfo.pRightStartOfSegment; - readDirection = pHcr->segmentInfo.readDirection; - pSegmentBitfield = pHcr->segmentInfo.pSegmentBitfield; - pCodewordBitfield = pHcr->segmentInfo.pCodewordBitfield; - segmentOffset = pHcr->segmentInfo.segmentOffset; - - pCntSign = pHcr->nonPcwSideinfo.pCntSign; - pResultBase = pHcr->nonPcwSideinfo.pResultBase; - iResultPointer = pHcr->nonPcwSideinfo.iResultPointer; - codewordOffset = pHcr->nonPcwSideinfo.codewordOffset; - iQSC = iResultPointer[codewordOffset]; - cntSign = pCntSign[codewordOffset]; - - - - /* loop for sign bit decoding */ - for ( ; pRemainingBitsInSegment[segmentOffset] > 0 ; pRemainingBitsInSegment[segmentOffset] -= 1 ) { - - carryBit = HcrGetABitFromBitstream( bs, - &pLeftStartOfSegment[segmentOffset], - &pRightStartOfSegment[segmentOffset], - readDirection); - cntSign -= 1; /* decrement sign counter because one sign bit has been read */ - - /* search for a line (which was decoded in previous state) which is not zero. [This value will get a sign] */ - while ( pResultBase[iQSC] == (FIXP_DBL)0 ) { - iQSC++; /* points to current value different from zero */ - if (iQSC >= 1024) { - return BODY_SIGN__SIGN; - } - } - - /* put sign together with line; if carryBit is zero, the sign is ok already; no write operation necessary in this case */ - if ( carryBit != 0 ) { - pResultBase[iQSC] = -pResultBase[iQSC]; /* carryBit = 1 --> minus */ - } - - iQSC++; /* update pointer to next (maybe valid) value */ - - if ( cntSign == 0 ) { /* if (cntSign==0) ==> set state CODEWORD_DECODED */ - ClearBitFromBitfield(&(pHcr->nonPcwSideinfo.pState), - segmentOffset, - pCodewordBitfield); /* clear a bit in bitfield and switch off statemachine */ - pRemainingBitsInSegment[segmentOffset] -= 1; /* last reinitialzation of for loop counter (see above) is done here */ - break; /* whole nonPCW-Body and according sign bits are decoded */ - } - } - pCntSign[codewordOffset] = cntSign; - iResultPointer[codewordOffset] = iQSC; /* store updated pResultPointer */ - - if ( pRemainingBitsInSegment[segmentOffset] <= 0 ) { - ClearBitFromBitfield(&(pHcr->nonPcwSideinfo.pState), - segmentOffset, - pSegmentBitfield); /* clear a bit in bitfield and switch off statemachine */ - -#if STATE_MACHINE_ERROR_CHECK - if ( pRemainingBitsInSegment[segmentOffset] < 0 ) { - pHcr->decInOut.errorLog |= STATE_ERROR_BODY_SIGN__SIGN; - return BODY_SIGN__SIGN; - } -#endif - } - - return STOP_THIS_STATE; -} - - -/*--------------------------------------------------------------------------------------------- - description: Decodes the codeword body in case of codebook is 11. Writes out resulting - two or four lines [with probably wrong sign] and counts the number of - lines, which are different form zero. This information is needed in next - state where sign bits will be decoded, if necessary. - If sign bit counter cntSign is zero, no sign bits are needed and codeword is - decoded completely. ------------------------------------------------------------------------------------------------ - output: Two lines (quantizes spectral coefficients) which are probably wrong. The - sign may be wrong and if one or two values is/are 16, the following states - will decode the escape sequence to correct the values which are wirtten here. ------------------------------------------------------------------------------------------------ - return: 0 --------------------------------------------------------------------------------------------- */ -UINT Hcr_State_BODY_SIGN_ESC__BODY(HANDLE_FDK_BITSTREAM bs, void *ptr) -{ - H_HCR_INFO pHcr = (H_HCR_INFO)ptr; - SCHAR *pRemainingBitsInSegment; - USHORT *pLeftStartOfSegment; - USHORT *pRightStartOfSegment; - UCHAR readDirection; - UINT *pSegmentBitfield; - UINT *pCodewordBitfield; - UINT segmentOffset; - - UINT *iNode; - UCHAR *pCntSign; - FIXP_DBL *pResultBase; - USHORT *iResultPointer; - UINT codewordOffset; - - UCHAR carryBit; - UINT iQSC; - UINT cntSign; - UINT dimCntr; - UINT treeNode; - SCHAR *pSta; - UINT branchNode; - UINT branchValue; - const UINT *pCurrentTree; - const SCHAR *pQuantValBase; - const SCHAR *pQuantVal; - - pRemainingBitsInSegment = pHcr->segmentInfo.pRemainingBitsInSegment; - pLeftStartOfSegment = pHcr->segmentInfo.pLeftStartOfSegment; - pRightStartOfSegment = pHcr->segmentInfo.pRightStartOfSegment; - readDirection = pHcr->segmentInfo.readDirection; - pSegmentBitfield = pHcr->segmentInfo.pSegmentBitfield; - pCodewordBitfield = pHcr->segmentInfo.pCodewordBitfield; - segmentOffset = pHcr->segmentInfo.segmentOffset; - - iNode = pHcr->nonPcwSideinfo.iNode; - pCntSign = pHcr->nonPcwSideinfo.pCntSign; - pResultBase = pHcr->nonPcwSideinfo.pResultBase; - iResultPointer = pHcr->nonPcwSideinfo.iResultPointer; - codewordOffset = pHcr->nonPcwSideinfo.codewordOffset; - pSta = pHcr->nonPcwSideinfo.pSta; - - treeNode = iNode[codewordOffset]; - pCurrentTree = aHuffTable[ESCAPE_CODEBOOK]; - - - for ( ; pRemainingBitsInSegment[segmentOffset] > 0 ; pRemainingBitsInSegment[segmentOffset] -= 1 ) { - - carryBit = HcrGetABitFromBitstream( bs, - &pLeftStartOfSegment[segmentOffset], - &pRightStartOfSegment[segmentOffset], - readDirection); - - /* make a step in tree */ - CarryBitToBranchValue(carryBit, - treeNode, - &branchValue, - &branchNode); - - /* if end of branch reached write out lines and count bits needed for sign, otherwise store node in codeword sideinfo */ - if ((branchNode & TEST_BIT_10) == TEST_BIT_10) { /* test bit 10 ; if set body complete */ - - /* body completely decoded; branchValue is valid */ - /* set pQuantVol to first (of two or four) quantized spectral coefficients */ - pQuantValBase = aQuantTable[ESCAPE_CODEBOOK]; /* get base address of quantized values belonging to current codebook */ - pQuantVal = pQuantValBase + branchValue; /* set pointer to first valid line [of 2 or 4 quantized values] */ - - /* make backup from original resultPointer in node storage for state BODY_SIGN_ESC__SIGN */ - iNode[codewordOffset] = iResultPointer[codewordOffset]; - - /* get position of first line for writing result */ - iQSC = iResultPointer[codewordOffset]; - - /* codeword decoding result is written out here: Write out 2 or 4 quantized spectral values with probably */ - /* wrong sign and count number of values which are different from zero for sign bit decoding [which happens in next state] */ - cntSign = 0; - - for ( dimCntr = DIMENSION_OF_ESCAPE_CODEBOOK; dimCntr != 0; dimCntr-- ) { - pResultBase[iQSC++] = (FIXP_DBL)*pQuantVal; /* write quant. spec. coef. into spectrum */ - if ( *pQuantVal++ != 0 ) { - cntSign += 1; - } - } - - if ( cntSign == 0 ) { - ClearBitFromBitfield(&(pHcr->nonPcwSideinfo.pState), - segmentOffset, - pCodewordBitfield); /* clear a bit in bitfield and switch off statemachine */ - /* codeword decoded */ - } - else { - /* write sign count result into codewordsideinfo of current codeword */ - pCntSign[codewordOffset] = cntSign; - pSta[codewordOffset] = BODY_SIGN_ESC__SIGN; /* change state */ - pHcr->nonPcwSideinfo.pState = aStateConstant2State[pSta[codewordOffset]]; /* get state from separate array of cw-sideinfo */ - } - pRemainingBitsInSegment[segmentOffset] -= 1; /* the last reinitialzation of for loop counter (see above) is done here */ - break; /* end of branch in tree reached i.e. a whole nonPCW-Body is decoded */ - } - else { /* body is not decoded completely: */ - /* update treeNode for further step in decoding tree and store updated treeNode because maybe no more bits left in segment */ - treeNode = *(pCurrentTree + branchValue); - iNode[codewordOffset] = treeNode; - } - } - - if ( pRemainingBitsInSegment[segmentOffset] <= 0 ) { - ClearBitFromBitfield(&(pHcr->nonPcwSideinfo.pState), - segmentOffset, - pSegmentBitfield); /* clear a bit in bitfield and switch off statemachine */ - -#if STATE_MACHINE_ERROR_CHECK - if ( pRemainingBitsInSegment[segmentOffset] < 0 ) { - pHcr->decInOut.errorLog |= STATE_ERROR_BODY_SIGN_ESC__BODY; - return BODY_SIGN_ESC__BODY; - } -#endif - } - - return STOP_THIS_STATE; -} - - -/*--------------------------------------------------------------------------------------------- - description: This state decodes the sign bits, if a codeword of codebook 11 needs some. - A flag named 'flagB' in codeword sideinfo is set, if the second line of - quantized spectral values is 16. The 'flagB' is used in case of decoding - of a escape sequence is necessary as far as the second line is concerned. - - If only the first line needs an escape sequence, the flagB is cleared. - If only the second line needs an escape sequence, the flagB is not used. - - For storing sideinfo in case of escape sequence decoding one single word - can be used for both escape sequences because they are decoded not at the - same time: - - - bit 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 - ===== == == =========== =========== =================================== - ^ ^ ^ ^ ^ ^ - | | | | | | - res. flagA flagB escapePrefixUp escapePrefixDown escapeWord - ------------------------------------------------------------------------------------------------ - output: Two lines with correct sign. If one or two values is/are 16, the lines are - not valid, otherwise they are. ------------------------------------------------------------------------------------------------ - return: 0 --------------------------------------------------------------------------------------------- */ -UINT Hcr_State_BODY_SIGN_ESC__SIGN(HANDLE_FDK_BITSTREAM bs, void *ptr) -{ - H_HCR_INFO pHcr = (H_HCR_INFO)ptr; - SCHAR *pRemainingBitsInSegment; - USHORT *pLeftStartOfSegment; - USHORT *pRightStartOfSegment; - UCHAR readDirection; - UINT *pSegmentBitfield; - UINT *pCodewordBitfield; - UINT segmentOffset; - - UINT *iNode; - UCHAR *pCntSign; - FIXP_DBL *pResultBase; - USHORT *iResultPointer; - UINT *pEscapeSequenceInfo; - UINT codewordOffset; - - UINT iQSC; - UCHAR cntSign; - UINT flagA; - UINT flagB; - UINT flags; - UCHAR carryBit; - SCHAR *pSta; - - pRemainingBitsInSegment = pHcr->segmentInfo.pRemainingBitsInSegment; - pLeftStartOfSegment = pHcr->segmentInfo.pLeftStartOfSegment; - pRightStartOfSegment = pHcr->segmentInfo.pRightStartOfSegment; - readDirection = pHcr->segmentInfo.readDirection; - pSegmentBitfield = pHcr->segmentInfo.pSegmentBitfield; - pCodewordBitfield = pHcr->segmentInfo.pCodewordBitfield; - segmentOffset = pHcr->segmentInfo.segmentOffset; - - iNode = pHcr->nonPcwSideinfo.iNode; - pCntSign = pHcr->nonPcwSideinfo.pCntSign; - pResultBase = pHcr->nonPcwSideinfo.pResultBase; - iResultPointer = pHcr->nonPcwSideinfo.iResultPointer; - pEscapeSequenceInfo = pHcr->nonPcwSideinfo.pEscapeSequenceInfo; - codewordOffset = pHcr->nonPcwSideinfo.codewordOffset; - pSta = pHcr->nonPcwSideinfo.pSta; - - iQSC = iResultPointer[codewordOffset]; - cntSign = pCntSign[codewordOffset]; - - - /* loop for sign bit decoding */ - for ( ; pRemainingBitsInSegment[segmentOffset] > 0 ; pRemainingBitsInSegment[segmentOffset] -= 1 ) { - - carryBit = HcrGetABitFromBitstream( bs, - &pLeftStartOfSegment[segmentOffset], - &pRightStartOfSegment[segmentOffset], - readDirection); - - /* decrement sign counter because one sign bit has been read */ - cntSign -= 1; - pCntSign[codewordOffset] = cntSign; - - /* get a quantized spectral value (which was decoded in previous state) which is not zero. [This value will get a sign] */ - while ( pResultBase[iQSC] == (FIXP_DBL)0 ) { - iQSC++; - } - iResultPointer[codewordOffset] = iQSC; - - /* put negative sign together with quantized spectral value; if carryBit is zero, the sign is ok already; no write operation necessary in this case */ - if ( carryBit != 0 ) { - pResultBase[iQSC] = - pResultBase[iQSC]; /* carryBit = 1 --> minus */ - } - iQSC++; /* update index to next (maybe valid) value */ - iResultPointer[codewordOffset] = iQSC; - - if ( cntSign == 0 ) { - /* all sign bits are decoded now */ - pRemainingBitsInSegment[segmentOffset] -= 1; /* last reinitialzation of for loop counter (see above) is done here */ - - /* check decoded values if codeword is decoded: Check if one or two escape sequences 16 follow */ - - /* step 0 */ - /* restore pointer to first decoded quantized value [ = original pResultPointr] from index iNode prepared in State_BODY_SIGN_ESC__BODY */ - iQSC = iNode[codewordOffset]; - - /* step 1 */ - /* test first value if escape sequence follows */ - flagA = 0; /* for first possible escape sequence */ - if ( fixp_abs(pResultBase[iQSC++]) == (FIXP_DBL)ESCAPE_VALUE ) { - flagA = 1; - } - - /* step 2 */ - /* test second value if escape sequence follows */ - flagB = 0; /* for second possible escape sequence */ - if ( fixp_abs(pResultBase[iQSC]) == (FIXP_DBL)ESCAPE_VALUE ) { - flagB = 1; - } - - - /* step 3 */ - /* evaluate flag result and go on if necessary */ - if ( !flagA && !flagB ) { - ClearBitFromBitfield(&(pHcr->nonPcwSideinfo.pState), - segmentOffset, - pCodewordBitfield); /* clear a bit in bitfield and switch off statemachine */ - } - else { - /* at least one of two lines is 16 */ - /* store both flags at correct positions in non PCW codeword sideinfo pEscapeSequenceInfo[codewordOffset] */ - flags = 0; - flags = flagA << POSITION_OF_FLAG_A; - flags |= (flagB << POSITION_OF_FLAG_B); - pEscapeSequenceInfo[codewordOffset] = flags; - - - /* set next state */ - pSta[codewordOffset] = BODY_SIGN_ESC__ESC_PREFIX; - pHcr->nonPcwSideinfo.pState = aStateConstant2State[pSta[codewordOffset]]; /* get state from separate array of cw-sideinfo */ - - /* set result pointer to the first line of the two decoded lines */ - iResultPointer[codewordOffset] = iNode[codewordOffset]; - - if ( !flagA && flagB ) { - /* update pResultPointr ==> state Stat_BODY_SIGN_ESC__ESC_WORD writes to correct position. Second value is the one and only escape value */ - iQSC = iResultPointer[codewordOffset]; - iQSC++; - iResultPointer[codewordOffset] = iQSC; - } - - } /* at least one of two lines is 16 */ - break; /* nonPCW-Body at cb 11 and according sign bits are decoded */ - - } /* if ( cntSign == 0 ) */ - } /* loop over remaining Bits in segment */ - - if ( pRemainingBitsInSegment[segmentOffset] <= 0 ) { - ClearBitFromBitfield(&(pHcr->nonPcwSideinfo.pState), - segmentOffset, - pSegmentBitfield); /* clear a bit in bitfield and switch off statemachine */ - -#if STATE_MACHINE_ERROR_CHECK - if ( pRemainingBitsInSegment[segmentOffset] < 0 ) { - pHcr->decInOut.errorLog |= STATE_ERROR_BODY_SIGN_ESC__SIGN; - return BODY_SIGN_ESC__SIGN; - } -#endif - - } - return STOP_THIS_STATE; -} - - -/*--------------------------------------------------------------------------------------------- - description: Decode escape prefix of first or second escape sequence. The escape prefix - consists of ones. The following zero is also decoded here. ------------------------------------------------------------------------------------------------ - output: If the single separator-zero which follows the escape-prefix-ones is not yet decoded: - The value 'escapePrefixUp' in word pEscapeSequenceInfo[codewordOffset] is updated. - - If the single separator-zero which follows the escape-prefix-ones is decoded: - Two updated values 'escapePrefixUp' and 'escapePrefixDown' in word - pEscapeSequenceInfo[codewordOffset]. This State is finished. Switch to next state. ------------------------------------------------------------------------------------------------ - return: 0 --------------------------------------------------------------------------------------------- */ -UINT Hcr_State_BODY_SIGN_ESC__ESC_PREFIX(HANDLE_FDK_BITSTREAM bs, void *ptr) -{ - H_HCR_INFO pHcr = (H_HCR_INFO)ptr; - SCHAR *pRemainingBitsInSegment; - USHORT *pLeftStartOfSegment; - USHORT *pRightStartOfSegment; - UCHAR readDirection; - UINT *pSegmentBitfield; - UINT segmentOffset; - UINT *pEscapeSequenceInfo; - UINT codewordOffset; - UCHAR carryBit; - UINT escapePrefixUp; - SCHAR *pSta; - - pRemainingBitsInSegment = pHcr->segmentInfo.pRemainingBitsInSegment; - pLeftStartOfSegment = pHcr->segmentInfo.pLeftStartOfSegment; - pRightStartOfSegment = pHcr->segmentInfo.pRightStartOfSegment; - readDirection = pHcr->segmentInfo.readDirection; - pSegmentBitfield = pHcr->segmentInfo.pSegmentBitfield; - segmentOffset = pHcr->segmentInfo.segmentOffset; - pEscapeSequenceInfo = pHcr->nonPcwSideinfo.pEscapeSequenceInfo; - codewordOffset = pHcr->nonPcwSideinfo.codewordOffset; - pSta = pHcr->nonPcwSideinfo.pSta; - - escapePrefixUp = (pEscapeSequenceInfo[codewordOffset] & MASK_ESCAPE_PREFIX_UP) >> LSB_ESCAPE_PREFIX_UP; - - - /* decode escape prefix */ - for ( ; pRemainingBitsInSegment[segmentOffset] > 0 ; pRemainingBitsInSegment[segmentOffset] -= 1 ) { - - carryBit = HcrGetABitFromBitstream( bs, - &pLeftStartOfSegment[segmentOffset], - &pRightStartOfSegment[segmentOffset], - readDirection); - - /* count ones and store sum in escapePrefixUp */ - if ( carryBit == 1 ) { - escapePrefixUp += 1; /* update conter for ones */ - - /* store updated counter in sideinfo of current codeword */ - pEscapeSequenceInfo[codewordOffset] &= ~MASK_ESCAPE_PREFIX_UP; /* delete old escapePrefixUp */ - escapePrefixUp <<= LSB_ESCAPE_PREFIX_UP; /* shift to correct position */ - pEscapeSequenceInfo[codewordOffset] |= escapePrefixUp; /* insert new escapePrefixUp */ - escapePrefixUp >>= LSB_ESCAPE_PREFIX_UP; /* shift back down */ - } - else { /* separator [zero] reached */ - pRemainingBitsInSegment[segmentOffset] -= 1; /* last reinitialzation of for loop counter (see above) is done here */ - escapePrefixUp += 4; /* if escape_separator '0' appears, add 4 and ==> break */ - - /* store escapePrefixUp in pEscapeSequenceInfo[codewordOffset] at bit position escapePrefixUp */ - pEscapeSequenceInfo[codewordOffset] &= ~MASK_ESCAPE_PREFIX_UP; /* delete old escapePrefixUp */ - escapePrefixUp <<= LSB_ESCAPE_PREFIX_UP; /* shift to correct position */ - pEscapeSequenceInfo[codewordOffset] |= escapePrefixUp; /* insert new escapePrefixUp */ - escapePrefixUp >>= LSB_ESCAPE_PREFIX_UP; /* shift back down */ - - /* store escapePrefixUp in pEscapeSequenceInfo[codewordOffset] at bit position escapePrefixDown */ - pEscapeSequenceInfo[codewordOffset] &= ~MASK_ESCAPE_PREFIX_DOWN; /* delete old escapePrefixDown */ - escapePrefixUp <<= LSB_ESCAPE_PREFIX_DOWN; /* shift to correct position */ - pEscapeSequenceInfo[codewordOffset] |= escapePrefixUp; /* insert new escapePrefixDown */ - escapePrefixUp >>= LSB_ESCAPE_PREFIX_DOWN; /* shift back down */ - - pSta[codewordOffset] = BODY_SIGN_ESC__ESC_WORD; /* set next state */ - pHcr->nonPcwSideinfo.pState = aStateConstant2State[pSta[codewordOffset]]; /* get state from separate array of cw-sideinfo */ - break; - } - } - - if ( pRemainingBitsInSegment[segmentOffset] <= 0 ) { - ClearBitFromBitfield(&(pHcr->nonPcwSideinfo.pState), - segmentOffset, - pSegmentBitfield); /* clear a bit in bitfield and switch off statemachine */ - -#if STATE_MACHINE_ERROR_CHECK - if ( pRemainingBitsInSegment[segmentOffset] < 0 ) { - pHcr->decInOut.errorLog |= STATE_ERROR_BODY_SIGN_ESC__ESC_PREFIX; - return BODY_SIGN_ESC__ESC_PREFIX; - } -#endif - } - - return STOP_THIS_STATE; -} - - -/*--------------------------------------------------------------------------------------------- - description: Decode escapeWord of escape sequence. If the escape sequence is decoded - completely, assemble quantized-spectral-escape-coefficient and replace the - previous decoded 16 by the new value. - Test flagB. If flagB is set, the second escape sequence must be decoded. If - flagB is not set, the codeword is decoded and the state machine is switched - off. ------------------------------------------------------------------------------------------------ - output: Two lines with valid sign. At least one of both lines has got the correct - value. ------------------------------------------------------------------------------------------------ - return: 0 --------------------------------------------------------------------------------------------- */ -UINT Hcr_State_BODY_SIGN_ESC__ESC_WORD(HANDLE_FDK_BITSTREAM bs, void *ptr) -{ - H_HCR_INFO pHcr = (H_HCR_INFO)ptr; - SCHAR *pRemainingBitsInSegment; - USHORT *pLeftStartOfSegment; - USHORT *pRightStartOfSegment; - UCHAR readDirection; - UINT *pSegmentBitfield; - UINT *pCodewordBitfield; - UINT segmentOffset; - - FIXP_DBL *pResultBase; - USHORT *iResultPointer; - UINT *pEscapeSequenceInfo; - UINT codewordOffset; - - UINT escapeWord; - UINT escapePrefixDown; - UINT escapePrefixUp; - UCHAR carryBit; - UINT iQSC; - INT sign; - UINT flagA; - UINT flagB; - SCHAR *pSta; - - pRemainingBitsInSegment = pHcr->segmentInfo.pRemainingBitsInSegment; - pLeftStartOfSegment = pHcr->segmentInfo.pLeftStartOfSegment; - pRightStartOfSegment = pHcr->segmentInfo.pRightStartOfSegment; - readDirection = pHcr->segmentInfo.readDirection; - pSegmentBitfield = pHcr->segmentInfo.pSegmentBitfield; - pCodewordBitfield = pHcr->segmentInfo.pCodewordBitfield; - segmentOffset = pHcr->segmentInfo.segmentOffset; - - pResultBase = pHcr->nonPcwSideinfo.pResultBase; - iResultPointer = pHcr->nonPcwSideinfo.iResultPointer; - pEscapeSequenceInfo = pHcr->nonPcwSideinfo.pEscapeSequenceInfo; - codewordOffset = pHcr->nonPcwSideinfo.codewordOffset; - pSta = pHcr->nonPcwSideinfo.pSta; - - escapeWord = pEscapeSequenceInfo[codewordOffset] & MASK_ESCAPE_WORD; - escapePrefixDown = (pEscapeSequenceInfo[codewordOffset] & MASK_ESCAPE_PREFIX_DOWN) >> LSB_ESCAPE_PREFIX_DOWN; - - - /* decode escape word */ - for ( ; pRemainingBitsInSegment[segmentOffset] > 0 ; pRemainingBitsInSegment[segmentOffset] -= 1 ) { - - carryBit = HcrGetABitFromBitstream( bs, - &pLeftStartOfSegment[segmentOffset], - &pRightStartOfSegment[segmentOffset], - readDirection); - - /* build escape word */ - escapeWord <<= 1; /* left shift previous decoded part of escapeWord by on bit */ - escapeWord = escapeWord | carryBit; /* assemble escape word by bitwise or */ - - /* decrement counter for length of escape word because one more bit was decoded */ - escapePrefixDown -= 1; - - /* store updated escapePrefixDown */ - pEscapeSequenceInfo[codewordOffset] &= ~MASK_ESCAPE_PREFIX_DOWN; /* delete old escapePrefixDown */ - escapePrefixDown <<= LSB_ESCAPE_PREFIX_DOWN; /* shift to correct position */ - pEscapeSequenceInfo[codewordOffset] |= escapePrefixDown; /* insert new escapePrefixDown */ - escapePrefixDown >>= LSB_ESCAPE_PREFIX_DOWN; /* shift back */ - - - /* store updated escapeWord */ - pEscapeSequenceInfo[codewordOffset] &= ~MASK_ESCAPE_WORD; /* delete old escapeWord */ - pEscapeSequenceInfo[codewordOffset] |= escapeWord; /* insert new escapeWord */ - - - if ( escapePrefixDown == 0 ) { - pRemainingBitsInSegment[segmentOffset] -= 1; /* last reinitialzation of for loop counter (see above) is done here */ - - /* escape sequence decoded. Assemble escape-line and replace original line */ - - /* step 0 */ - /* derive sign */ - iQSC = iResultPointer[codewordOffset]; - sign = (pResultBase[iQSC] >= (FIXP_DBL)0) ? 1 : -1; /* get sign of escape value 16 */ - - /* step 1 */ - /* get escapePrefixUp */ - escapePrefixUp = (pEscapeSequenceInfo[codewordOffset] & MASK_ESCAPE_PREFIX_UP) >> LSB_ESCAPE_PREFIX_UP; - - /* step 2 */ - /* calculate escape value */ - pResultBase[iQSC] = (FIXP_DBL)(sign * (((INT) 1 << escapePrefixUp) + escapeWord)); - - /* get both flags from sideinfo (flags are not shifted to the lsb-position) */ - flagA = pEscapeSequenceInfo[codewordOffset] & MASK_FLAG_A; - flagB = pEscapeSequenceInfo[codewordOffset] & MASK_FLAG_B; - - /* step 3 */ - /* clear the whole escape sideinfo word */ - pEscapeSequenceInfo[codewordOffset] = 0; - - /* change state in dependence of flag flagB */ - if ( flagA != 0 ) { - /* first escape sequence decoded; previous decoded 16 has been replaced by valid line */ - - /* clear flagA in sideinfo word because this escape sequence has already beed decoded */ - pEscapeSequenceInfo[codewordOffset] &= ~MASK_FLAG_A; - - if ( flagB == 0 ) { - ClearBitFromBitfield(&(pHcr->nonPcwSideinfo.pState), - segmentOffset, - pCodewordBitfield); /* clear a bit in bitfield and switch off statemachine */ - } - else { - /* updated pointer to next and last 16 */ - iQSC++; - iResultPointer[codewordOffset] = iQSC; - - /* change state */ - pSta[codewordOffset] = BODY_SIGN_ESC__ESC_PREFIX; - pHcr->nonPcwSideinfo.pState = aStateConstant2State[pSta[codewordOffset]]; /* get state from separate array of cw-sideinfo */ - } - } - else { - ClearBitFromBitfield(&(pHcr->nonPcwSideinfo.pState), - segmentOffset, - pCodewordBitfield); /* clear a bit in bitfield and switch off statemachine */ - } - break; - } - } - - if ( pRemainingBitsInSegment[segmentOffset] <= 0 ) { - ClearBitFromBitfield(&(pHcr->nonPcwSideinfo.pState), - segmentOffset, - pSegmentBitfield); /* clear a bit in bitfield and switch off statemachine */ - -#if STATE_MACHINE_ERROR_CHECK - if ( pRemainingBitsInSegment[segmentOffset] < 0 ) { - pHcr->decInOut.errorLog |= STATE_ERROR_BODY_SIGN_ESC__ESC_WORD; - return BODY_SIGN_ESC__ESC_WORD; - } -#endif - } - - return STOP_THIS_STATE; -} - diff --git a/libAACdec/src/aacdec_hcrs.h b/libAACdec/src/aacdec_hcrs.h deleted file mode 100644 index 678ba26..0000000 --- a/libAACdec/src/aacdec_hcrs.h +++ /dev/null @@ -1,153 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder *************************** - - Author(s): Robert Weidner (DSP Solutions) - Description: HCR Decoder: Defines of state-constants, masks and - state-prototypes - -*******************************************************************************/ - -#ifndef _AACDEC_HCRS_H_ -#define _AACDEC_HCRS_H_ - - - -#include "FDK_bitstream.h" -#include "aacdec_hcr_types.h" - /* The four different kinds of types of states are: */ -/* different states are defined as constants */ /* start middle=self next stop */ -#define STOP_THIS_STATE 0 /* */ -#define BODY_ONLY 1 /* X X X */ -#define BODY_SIGN__BODY 2 /* X X X X [stop if no sign] */ -#define BODY_SIGN__SIGN 3 /* X X [stop if sign bits decoded] */ -#define BODY_SIGN_ESC__BODY 4 /* X X X X [stop if no sign] */ -#define BODY_SIGN_ESC__SIGN 5 /* X X X [stop if no escape sequence] */ -#define BODY_SIGN_ESC__ESC_PREFIX 6 /* X X */ -#define BODY_SIGN_ESC__ESC_WORD 7 /* X X X [stop if abs(second qsc) != 16] */ - -/* examples: */ - -/* BODY_ONLY means only the codeword body will be decoded; no sign bits will follow and no escapesequence will follow */ - -/* BODY_SIGN__BODY means that the codeword consists of two parts; body and sign part. The part '__BODY' after the two underscores shows */ -/* that the bits which are currently decoded belong to the '__BODY' of the codeword and not to the sign part. */ - -/* BODY_SIGN_ESC__ESC_PB means that the codeword consists of three parts; body, sign and (here: two) escape sequences; */ -/* P = Prefix = ones */ -/* W = Escape Word */ -/* A = first possible (of two) Escape sequeces */ -/* B = second possible (of two) Escape sequeces */ -/* The part after the two underscores shows that the current bits which are decoded belong to the '__ESC_PB' - part of the */ -/* codeword. That means the body and the sign bits are decoded completely and the bits which are decoded now belong to */ -/* the escape sequence [P = prefix; B=second possible escape sequence] */ - - -#define MSB_31_MASK 0x80000000 /* masks MSB (= Bit 31) in a 32 bit word */ -#define DIMENSION_OF_ESCAPE_CODEBOOK 2 /* for cb >= 11 is dimension 2 */ -#define ESCAPE_CODEBOOK 11 - -#define MASK_ESCAPE_PREFIX_UP 0x000F0000 -#define LSB_ESCAPE_PREFIX_UP 16 - -#define MASK_ESCAPE_PREFIX_DOWN 0x0000F000 -#define LSB_ESCAPE_PREFIX_DOWN 12 - -#define MASK_ESCAPE_WORD 0x00000FFF -#define MASK_FLAG_A 0x00200000 -#define MASK_FLAG_B 0x00100000 - - -extern void DecodeNonPCWs(HANDLE_FDK_BITSTREAM bs, H_HCR_INFO hHcr); - -UINT Hcr_State_BODY_ONLY (HANDLE_FDK_BITSTREAM, void*); -UINT Hcr_State_BODY_SIGN__BODY (HANDLE_FDK_BITSTREAM, void*); -UINT Hcr_State_BODY_SIGN__SIGN (HANDLE_FDK_BITSTREAM, void*); -UINT Hcr_State_BODY_SIGN_ESC__BODY (HANDLE_FDK_BITSTREAM, void*); -UINT Hcr_State_BODY_SIGN_ESC__SIGN (HANDLE_FDK_BITSTREAM, void*); -UINT Hcr_State_BODY_SIGN_ESC__ESC_PREFIX (HANDLE_FDK_BITSTREAM, void*); -UINT Hcr_State_BODY_SIGN_ESC__ESC_WORD (HANDLE_FDK_BITSTREAM, void*); - -#endif /* _AACDEC_HCRS_H_ */ - diff --git a/libAACdec/src/aacdec_pns.cpp b/libAACdec/src/aacdec_pns.cpp deleted file mode 100644 index 541ef07..0000000 --- a/libAACdec/src/aacdec_pns.cpp +++ /dev/null @@ -1,382 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - Description: perceptual noise substitution tool - -******************************************************************************/ - -#include "aacdec_pns.h" - - -#include "aac_ram.h" -#include "aac_rom.h" -#include "channelinfo.h" -#include "block.h" -#include "FDK_bitstream.h" - -#include "genericStds.h" - - -#define NOISE_OFFSET 90 /* cf. ISO 14496-3 p. 175 */ - -/*! - \brief Reset InterChannel and PNS data - - The function resets the InterChannel and PNS data -*/ -void CPns_ResetData( - CPnsData *pPnsData, - CPnsInterChannelData *pPnsInterChannelData - ) -{ - /* Assign pointer always, since pPnsData is not persistent data */ - pPnsData->pPnsInterChannelData = pPnsInterChannelData; - pPnsData->PnsActive = 0; - pPnsData->CurrentEnergy = 0; - - FDKmemclear(pPnsData->pnsUsed,(8*16)*sizeof(UCHAR)); - FDKmemclear(pPnsInterChannelData->correlated,(8*16)*sizeof(UCHAR)); -} - -/*! - \brief Initialize PNS data - - The function initializes the PNS data -*/ -void CPns_InitPns( - CPnsData *pPnsData, - CPnsInterChannelData *pPnsInterChannelData, - INT* currentSeed, INT* randomSeed) -{ - /* save pointer to inter channel data */ - pPnsData->pPnsInterChannelData = pPnsInterChannelData; - - /* use pointer because seed has to be - same, left and right channel ! */ - pPnsData->currentSeed = currentSeed; - pPnsData->randomSeed = randomSeed; -} - -/*! - \brief Indicates if PNS is used - - The function returns a value indicating whether PNS is used or not - acordding to the noise energy - - \return PNS used -*/ -int CPns_IsPnsUsed (const CPnsData *pPnsData, - const int group, - const int band) -{ - unsigned pns_band = group*16+band; - - return pPnsData->pnsUsed[pns_band] & (UCHAR)1; -} - -/*! - \brief Set correlation - - The function activates the noise correlation between the channel pair -*/ -void CPns_SetCorrelation(CPnsData *pPnsData, - const int group, - const int band, - const int outofphase) -{ - CPnsInterChannelData *pInterChannelData = pPnsData->pPnsInterChannelData; - unsigned pns_band = group*16+band; - - pInterChannelData->correlated[pns_band] = (outofphase) ? 3 : 1; -} - -/*! - \brief Indicates if correlation is used - - The function indicates if the noise correlation between the channel pair - is activated - - \return PNS is correlated -*/ -static -int CPns_IsCorrelated(const CPnsData *pPnsData, - const int group, - const int band) -{ - CPnsInterChannelData *pInterChannelData = pPnsData->pPnsInterChannelData; - unsigned pns_band = group*16+band; - - return (pInterChannelData->correlated[pns_band] & 0x01) ? 1 : 0; -} - -/*! - \brief Indicates if correlated out of phase mode is used. - - The function indicates if the noise correlation between the channel pair - is activated in out-of-phase mode. - - \return PNS is out-of-phase -*/ -static -int CPns_IsOutOfPhase(const CPnsData *pPnsData, - const int group, - const int band) -{ - CPnsInterChannelData *pInterChannelData = pPnsData->pPnsInterChannelData; - unsigned pns_band = group*16+band; - - return (pInterChannelData->correlated[pns_band] & 0x02) ? 1 : 0; -} - -/*! - \brief Read PNS information - - The function reads the PNS information from the bitstream -*/ -void CPns_Read (CPnsData *pPnsData, - HANDLE_FDK_BITSTREAM bs, - const CodeBookDescription *hcb, - SHORT *pScaleFactor, - UCHAR global_gain, - int band, - int group /* = 0 */) -{ - int delta ; - UINT pns_band = group*16+band; - - if (pPnsData->PnsActive) { - /* Next PNS band case */ - delta = CBlock_DecodeHuffmanWord (bs, hcb) - 60; - } else { - /* First PNS band case */ - int noiseStartValue = FDKreadBits(bs,9); - - delta = noiseStartValue - 256 ; - pPnsData->PnsActive = 1; - pPnsData->CurrentEnergy = global_gain - NOISE_OFFSET; - } - - pPnsData->CurrentEnergy += delta ; - pScaleFactor[pns_band] = pPnsData->CurrentEnergy; - - pPnsData->pnsUsed[pns_band] = 1; -} - - -/** - * \brief Generate a vector of noise of given length. The noise values are - * scaled in order to yield a noise energy of 1.0 - * \param spec pointer to were the noise values will be written to. - * \param size amount of noise values to be generated. - * \param pRandomState pointer to the state of the random generator being used. - * \return exponent of generated noise vector. - */ -static int GenerateRandomVector (FIXP_DBL *RESTRICT spec, - int size, - int *pRandomState) -{ - int i, invNrg_e = 0, nrg_e = 0; - FIXP_DBL invNrg_m, nrg_m = FL2FXCONST_DBL(0.0f) ; - FIXP_DBL *RESTRICT ptr = spec; - int randomState = *pRandomState; - -#define GEN_NOISE_NRG_SCALE 7 - - /* Generate noise and calculate energy. */ - for (i=0; i<size; i++) - { - randomState = (1664525L * randomState) + 1013904223L; // Numerical Recipes - nrg_m = fPow2AddDiv2(nrg_m, (FIXP_DBL)randomState>>GEN_NOISE_NRG_SCALE); - *ptr++ = (FIXP_DBL)randomState; - } - nrg_e = GEN_NOISE_NRG_SCALE*2 + 1; - - /* weight noise with = 1 / sqrt_nrg; */ - invNrg_m = invSqrtNorm2(nrg_m<<1, &invNrg_e); - invNrg_e += -((nrg_e-1)>>1); - - for (i=size; i--; ) - { - spec[i] = fMult(spec[i], invNrg_m); - } - - /* Store random state */ - *pRandomState = randomState; - - return invNrg_e; -} - -static void ScaleBand (FIXP_DBL *RESTRICT spec, int size, int scaleFactor, int specScale, int noise_e, int out_of_phase) -{ - int i, shift, sfExponent; - FIXP_DBL sfMatissa; - - /* Get gain from scale factor value = 2^(scaleFactor * 0.25) */ - sfMatissa = MantissaTable[scaleFactor & 0x03][0]; - /* sfExponent = (scaleFactor >> 2) + ExponentTable[scaleFactor & 0x03][0]; */ - /* Note: ExponentTable[scaleFactor & 0x03][0] is always 1. */ - sfExponent = (scaleFactor >> 2) + 1; - - if (out_of_phase != 0) { - sfMatissa = -sfMatissa; - } - - /* +1 because of fMultDiv2 below. */ - shift = sfExponent - specScale + 1 + noise_e; - - /* Apply gain to noise values */ - if (shift>=0) { - shift = fixMin( shift, DFRACT_BITS-1 ); - for (i = size ; i-- != 0; ) { - spec [i] = fMultDiv2 (spec [i], sfMatissa) << shift; - } - } else { - shift = fixMin( -shift, DFRACT_BITS-1 ); - for (i = size ; i-- != 0; ) { - spec [i] = fMultDiv2 (spec [i], sfMatissa) >> shift; - } - } -} - - -/*! - \brief Apply PNS - - The function applies PNS (i.e. it generates noise) on the bands - flagged as noisy bands - -*/ -void CPns_Apply (const CPnsData *pPnsData, - const CIcsInfo *pIcsInfo, - SPECTRAL_PTR pSpectrum, - const SHORT *pSpecScale, - const SHORT *pScaleFactor, - const SamplingRateInfo *pSamplingRateInfo, - const INT granuleLength, - const int channel) -{ - if (pPnsData->PnsActive) { - const short *BandOffsets = GetScaleFactorBandOffsets(pIcsInfo, pSamplingRateInfo); - - int ScaleFactorBandsTransmitted = GetScaleFactorBandsTransmitted(pIcsInfo); - - for (int window = 0, group = 0; group < GetWindowGroups(pIcsInfo); group++) { - for (int groupwin = 0; groupwin < GetWindowGroupLength(pIcsInfo, group); groupwin++, window++) { - FIXP_DBL *spectrum = SPEC(pSpectrum, window, granuleLength); - - for (int band = 0 ; band < ScaleFactorBandsTransmitted; band++) { - if (CPns_IsPnsUsed (pPnsData, group, band)) { - UINT pns_band = group*16+band; - - int bandWidth = BandOffsets [band + 1] - BandOffsets [band] ; - int noise_e; - - FDK_ASSERT(bandWidth >= 0); - - if (channel > 0 && CPns_IsCorrelated(pPnsData, group, band)) - { - noise_e = GenerateRandomVector (spectrum + BandOffsets [band], bandWidth, - &pPnsData->randomSeed [pns_band]) ; - } - else - { - pPnsData->randomSeed [pns_band] = *pPnsData->currentSeed ; - - noise_e = GenerateRandomVector (spectrum + BandOffsets [band], bandWidth, - pPnsData->currentSeed) ; - } - - int outOfPhase = CPns_IsOutOfPhase (pPnsData, group, band); - - ScaleBand (spectrum + BandOffsets [band], bandWidth, - pScaleFactor[pns_band], - pSpecScale[window], noise_e, outOfPhase) ; - } - } - } - } - } -} diff --git a/libAACdec/src/aacdec_pns.h b/libAACdec/src/aacdec_pns.h deleted file mode 100644 index fc9bdcb..0000000 --- a/libAACdec/src/aacdec_pns.h +++ /dev/null @@ -1,120 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - Description: perceptual noise substitution tool - -******************************************************************************/ - -#ifndef PNS_H -#define PNS_H - -#include "common_fix.h" - - -#define NO_OFBANDS ((8*16)) - -typedef struct { - UCHAR correlated[NO_OFBANDS]; -} CPnsInterChannelData; - -typedef struct { - CPnsInterChannelData *pPnsInterChannelData; - UCHAR pnsUsed[NO_OFBANDS]; - int CurrentEnergy; - UCHAR PnsActive; - INT *currentSeed; - INT *randomSeed; -} CPnsData; - -void CPns_InitPns ( CPnsData *pPnsData, - CPnsInterChannelData *pPnsInterChannelData, - INT* currentSeed, - INT* randomSeed ); - -void CPns_ResetData ( CPnsData *pPnsData, CPnsInterChannelData *pPnsInterChannelData ); - - -#endif /* #ifndef PNS_H */ diff --git a/libAACdec/src/aacdec_tns.cpp b/libAACdec/src/aacdec_tns.cpp deleted file mode 100644 index 352f04a..0000000 --- a/libAACdec/src/aacdec_tns.cpp +++ /dev/null @@ -1,412 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - Description: temporal noise shaping tool - -******************************************************************************/ - -#include "aacdec_tns.h" -#include "aac_rom.h" -#include "FDK_bitstream.h" -#include "channelinfo.h" - - - -/*! - \brief Reset tns data - - The function resets the tns data - - \return none -*/ -void CTns_Reset(CTnsData *pTnsData) -{ - /* Note: the following FDKmemclear should not be required. */ - FDKmemclear(pTnsData->Filter, TNS_MAX_WINDOWS*TNS_MAXIMUM_FILTERS*sizeof(CFilter)); - FDKmemclear(pTnsData->NumberOfFilters, TNS_MAX_WINDOWS*sizeof(UCHAR)); - pTnsData->DataPresent = 0; - pTnsData->Active = 0; -} - -void CTns_ReadDataPresentFlag(HANDLE_FDK_BITSTREAM bs, /*!< pointer to bitstream */ - CTnsData *pTnsData) /*!< pointer to aac decoder channel info */ -{ - pTnsData->DataPresent = (UCHAR) FDKreadBits(bs,1); -} - -/*! - \brief Read tns data from bitstream - - The function reads the elements for tns from - the bitstream. - - \return none -*/ -AAC_DECODER_ERROR CTns_Read(HANDLE_FDK_BITSTREAM bs, - CTnsData *pTnsData, - const CIcsInfo *pIcsInfo, - const UINT flags) -{ - UCHAR n_filt,order; - UCHAR length,coef_res,coef_compress; - UCHAR window; - UCHAR wins_per_frame = GetWindowsPerFrame(pIcsInfo); - UCHAR isLongFlag = IsLongBlock(pIcsInfo); - AAC_DECODER_ERROR ErrorStatus = AAC_DEC_OK; - - if (!pTnsData->DataPresent) { - return ErrorStatus; - } - - for (window = 0; window < wins_per_frame; window++) - { - pTnsData->NumberOfFilters[window] = n_filt = (UCHAR) FDKreadBits(bs, isLongFlag ? 2 : 1); - - if (pTnsData->NumberOfFilters[window] > TNS_MAXIMUM_FILTERS){ - pTnsData->NumberOfFilters[window] = n_filt = TNS_MAXIMUM_FILTERS; - } - - if (n_filt) - { - int index; - UCHAR nextstopband; - - coef_res = (UCHAR) FDKreadBits(bs,1); - - nextstopband = GetScaleFactorBandsTotal(pIcsInfo); - - for (index=0; index < n_filt; index++) - { - CFilter *filter = &pTnsData->Filter[window][index]; - - length = (UCHAR)FDKreadBits(bs, isLongFlag ? 6 : 4); - - if (length > nextstopband){ - length = nextstopband; - } - - filter->StartBand = nextstopband - length; - filter->StopBand = nextstopband; - nextstopband = filter->StartBand; - - { - filter->Order = order = (UCHAR) FDKreadBits(bs, isLongFlag ? 5 : 3); - } - - if (filter->Order > TNS_MAXIMUM_ORDER){ - filter->Order = order = TNS_MAXIMUM_ORDER; - } - - if (order) - { - UCHAR coef,s_mask; - UCHAR i; - SCHAR n_mask; - static const UCHAR sgn_mask[] = { 0x2, 0x4, 0x8 }; - static const SCHAR neg_mask[] = { ~0x3, ~0x7, ~0xF }; - - filter->Direction = FDKreadBits(bs,1) ? -1 : 1; - - coef_compress = (UCHAR) FDKreadBits(bs,1); - - filter->Resolution = coef_res + 3; - - s_mask = sgn_mask[coef_res + 1 - coef_compress]; - n_mask = neg_mask[coef_res + 1 - coef_compress]; - - for (i=0; i < order; i++) - { - coef = (UCHAR) FDKreadBits(bs,filter->Resolution - coef_compress); - filter->Coeff[i] = (coef & s_mask) ? (coef | n_mask) : coef; - } - } - } - } - } - - pTnsData->Active = 1; - - return ErrorStatus; -} - - -static void CTns_Filter (FIXP_DBL *spec, int size, int inc, FIXP_TCC coeff [], int order) -{ - // - Simple all-pole filter of order "order" defined by - // y(n) = x(n) - a(2)*y(n-1) - ... - a(order+1)*y(n-order) - // - // - The state variables of the filter are initialized to zero every time - // - // - The output data is written over the input data ("in-place operation") - // - // - An input vector of "size" samples is processed and the index increment - // to the next data sample is given by "inc" - - int i,j,N; - FIXP_DBL *pSpec; - FIXP_DBL maxVal=FL2FXCONST_DBL(0.0); - INT s; - - FDK_ASSERT(order <= TNS_MAXIMUM_ORDER); - C_ALLOC_SCRATCH_START(state, FIXP_DBL, TNS_MAXIMUM_ORDER); - FDKmemclear(state, order*sizeof(FIXP_DBL)); - - for (i=0; i<size; i++) { - maxVal = fixMax(maxVal,fixp_abs(spec[i])); - } - - if ( maxVal > FL2FXCONST_DBL(0.03125*0.70710678118) ) - s = fixMax(CntLeadingZeros(maxVal)-6,0); - else - s = fixMax(CntLeadingZeros(maxVal)-5,0); - - s = fixMin(s,2); - s = s-1; - - if (inc == -1) - pSpec = &spec[size - 1]; - else - pSpec = &spec[0]; - - FIXP_TCC *pCoeff; - -#define FIRST_PART_FLTR \ - FIXP_DBL x, *pState = state; \ - pCoeff = coeff; \ - \ - if (s < 0) \ - x = (pSpec [0]>>1) + fMultDiv2 (*pCoeff++, pState [0]) ; \ - else \ - x = (pSpec [0]<<s) + fMultDiv2 (*pCoeff++, pState [0]) ; - -#define INNER_FLTR_INLINE \ - x = fMultAddDiv2 (x, *pCoeff, pState [1]); \ - pState [0] = pState [1] - (fMultDiv2 (*pCoeff++, x) <<2) ; \ - pState++; - -#define LAST_PART_FLTR \ - if (s < 0) \ - *pSpec = x << 1; \ - else \ - *pSpec = x >> s; \ - *pState =(-x) << 1; \ - pSpec += inc ; - - - if (order>8) - { - N = (order-1)&7; - - for (i = size ; i != 0 ; i--) - { - FIRST_PART_FLTR - - for (j = N; j > 0 ; j--) { INNER_FLTR_INLINE } - - INNER_FLTR_INLINE INNER_FLTR_INLINE INNER_FLTR_INLINE INNER_FLTR_INLINE - INNER_FLTR_INLINE INNER_FLTR_INLINE INNER_FLTR_INLINE INNER_FLTR_INLINE - - LAST_PART_FLTR - } - - } else if (order>4) { - - N = (order-1)&3; - - for (i = size ; i != 0 ; i--) - { - FIRST_PART_FLTR - for (j = N; j > 0 ; j--) { INNER_FLTR_INLINE } - - INNER_FLTR_INLINE INNER_FLTR_INLINE INNER_FLTR_INLINE INNER_FLTR_INLINE - - LAST_PART_FLTR - } - - } else { - - N = order-1; - - for (i = size ; i != 0 ; i--) - { - FIRST_PART_FLTR - - for (j = N; j > 0 ; j--) { INNER_FLTR_INLINE } - - LAST_PART_FLTR - } - } - - C_ALLOC_SCRATCH_END(state, FIXP_DBL, TNS_MAXIMUM_ORDER); -} - -/*! - \brief Apply tns to spectral lines - - The function applies the tns to the spectrum, - - \return none -*/ -void CTns_Apply ( - CTnsData *RESTRICT pTnsData, /*!< pointer to aac decoder info */ - const CIcsInfo *pIcsInfo, - SPECTRAL_PTR pSpectralCoefficient, - const SamplingRateInfo *pSamplingRateInfo, - const INT granuleLength - ) -{ - int window,index,start,stop,size; - - - if (pTnsData->Active) - { - C_AALLOC_SCRATCH_START(coeff, FIXP_TCC, TNS_MAXIMUM_ORDER); - - for (window=0; window < GetWindowsPerFrame(pIcsInfo); window++) - { - FIXP_DBL *pSpectrum = SPEC(pSpectralCoefficient, window, granuleLength); - - for (index=0; index < pTnsData->NumberOfFilters[window]; index++) - { - CFilter *RESTRICT filter = &pTnsData->Filter[window][index]; - - if (filter->Order > 0) - { - FIXP_TCC *pCoeff; - int tns_max_bands; - - pCoeff = &coeff[filter->Order-1]; - if (filter->Resolution == 3) - { - int i; - for (i=0; i < filter->Order; i++) - *pCoeff-- = FDKaacDec_tnsCoeff3[filter->Coeff[i]+4]; - } - else - { - int i; - for (i=0; i < filter->Order; i++) - *pCoeff-- = FDKaacDec_tnsCoeff4[filter->Coeff[i]+8]; - } - - switch (granuleLength) { - case 480: - tns_max_bands = tns_max_bands_tbl_480[pSamplingRateInfo->samplingRateIndex]; - break; - case 512: - tns_max_bands = tns_max_bands_tbl_512[pSamplingRateInfo->samplingRateIndex]; - break; - default: - tns_max_bands = GetMaximumTnsBands(pIcsInfo, pSamplingRateInfo->samplingRateIndex); - break; - } - - start = fixMin( fixMin(filter->StartBand, tns_max_bands), - GetScaleFactorBandsTransmitted(pIcsInfo) ); - - start = GetScaleFactorBandOffsets(pIcsInfo, pSamplingRateInfo)[start]; - - stop = fixMin( fixMin(filter->StopBand, tns_max_bands), - GetScaleFactorBandsTransmitted(pIcsInfo) ); - - stop = GetScaleFactorBandOffsets(pIcsInfo, pSamplingRateInfo)[stop]; - - size = stop - start; - - if (size > 0) { - CTns_Filter(&pSpectrum[start], - size, - filter->Direction, - coeff, - filter->Order ); - } - } - } - } - C_AALLOC_SCRATCH_END(coeff, FIXP_TCC, TNS_MAXIMUM_ORDER); - } - -} diff --git a/libAACdec/src/aacdec_tns.h b/libAACdec/src/aacdec_tns.h deleted file mode 100644 index f029d96..0000000 --- a/libAACdec/src/aacdec_tns.h +++ /dev/null @@ -1,126 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - Description: temporal noise shaping tool - -******************************************************************************/ - -#ifndef TNS_H -#define TNS_H - -#include "common_fix.h" - -enum -{ - TNS_MAX_WINDOWS = 8, /* 8 */ - TNS_MAXIMUM_ORDER = 20, /* 12 for AAC-LC and AAC-SSR. Set to 20 for AAC-Main (AOT 1). Some broken encoders also do order 20 for AAC-LC :( */ - TNS_MAXIMUM_FILTERS = 3 -}; - -typedef struct -{ - SCHAR Coeff[TNS_MAXIMUM_ORDER]; - - UCHAR StartBand; - UCHAR StopBand; - - SCHAR Direction; - SCHAR Resolution; - - UCHAR Order; -} CFilter; - -typedef struct -{ - CFilter Filter[TNS_MAX_WINDOWS][TNS_MAXIMUM_FILTERS]; - UCHAR NumberOfFilters[TNS_MAX_WINDOWS]; - UCHAR DataPresent; - UCHAR Active; -} CTnsData; - -void CTns_Reset(CTnsData *pTnsData); - -#endif /* #ifndef TNS_H */ diff --git a/libAACdec/src/aacdecoder.cpp b/libAACdec/src/aacdecoder.cpp deleted file mode 100644 index 3a2a561..0000000 --- a/libAACdec/src/aacdecoder.cpp +++ /dev/null @@ -1,1787 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - Description: - -******************************************************************************/ - - -/*! - \page default General Overview of the AAC Decoder Implementation - - The main entry point to decode a AAC frame is CAacDecoder_DecodeFrame(). It handles the different - transport multiplexes and bitstream formats supported by this implementation. It extracts the - AAC_raw_data_blocks from these bitstreams to further process then in the actual decoding stages. - - Note: Click on a function of file in the above image to see details about the function. Also note, that - this is just an overview of the most important functions and not a complete call graph. - - <h2>1 Bitstream deformatter</h2> - The basic bit stream parser function CChannelElement_Read() is called. It uses other subcalls in order - to parse and unpack the bitstreams. Note, that this includes huffmann decoding of the coded spectral data. - This operation can be computational significant specifically at higher bitrates. Optimization is likely in - CBlock_ReadSpectralData(). - - The bitstream deformatter also includes many bitfield operations. Profiling on the target will determine - required optimizations. - - <h2>2 Actual decoding to retain the time domain output</h2> - The basic bitstream deformatter function CChannelElement_Decode() for CPE elements and SCE elements are called. - Except for the stereo processing (2.1) which is only used for CPE elements, the function calls for CPE or SCE - are similar, except that CPE always processes to independent channels while SCE only processes one channel. - - Often there is the distinction between long blocks and short blocks. However, computational expensive functions - that ususally require optimization are being shared by these two groups, - - <h3>2.1 Stereo processing for CPE elements</h3> - CChannelPairElement_Decode() first calles the joint stereo tools in stereo.cpp when required. - - <h3>2.2 Scaling of spectral data</h3> - CBlock_ScaleSpectralData(). - - <h3>2.3 Apply additional coding tools</h3> - ApplyTools() calles the PNS tools in case of MPEG-4 bitstreams, and TNS filtering CTns_Apply() for MPEG-2 and MPEG-4 bitstreams. - The function TnsFilterIIR() which is called by CTns_Apply() (2.3.1) might require some optimization. - - <h2>3 Frequency-To-Time conversion</h3> - The filterbank is called using CBlock_FrequencyToTime() using the MDCT module from the FDK Tools - -*/ - - - -#include "aacdecoder.h" - -#include "aac_rom.h" -#include "aac_ram.h" -#include "channel.h" -#include "FDK_audio.h" - -#include "FDK_tools_rom.h" - - #include "aacdec_pns.h" - - #include "sbrdecoder.h" - - - - - #include "aacdec_hcr.h" - #include "rvlc.h" - - -#include "tpdec_lib.h" - -#include "conceal.h" - - - -#define CAN_DO_PS(aot) \ - ((aot) == AOT_AAC_LC \ -|| (aot) == AOT_SBR \ -|| (aot) == AOT_PS \ -|| (aot) == AOT_ER_BSAC \ -|| (aot) == AOT_DRM_AAC) - -#define IS_USAC(aot) \ - ((aot) == AOT_USAC \ -|| (aot) == AOT_RSVD50) - -#define IS_LOWDELAY(aot) \ - ((aot) == AOT_ER_AAC_LD \ -|| (aot) == AOT_ER_AAC_ELD) - -void CAacDecoder_SyncQmfMode(HANDLE_AACDECODER self) -{ - - /* Assign user requested mode */ - self->qmfModeCurr = self->qmfModeUser; - - if ( self->qmfModeCurr == NOT_DEFINED ) - { - if ( (IS_LOWDELAY(self->streamInfo.aot) && (self->flags & AC_MPS_PRESENT)) - || ( (self->streamInfo.aacNumChannels == 1) - && ( (CAN_DO_PS(self->streamInfo.aot) && !(self->flags & AC_MPS_PRESENT)) - || ( IS_USAC(self->streamInfo.aot) && (self->flags & AC_MPS_PRESENT)) ) ) ) - { - self->qmfModeCurr = MODE_HQ; - } else { - self->qmfModeCurr = MODE_LP; - } - } - - - /* Set SBR to current QMF mode. Error does not matter. */ - sbrDecoder_SetParam(self->hSbrDecoder, SBR_QMF_MODE, (self->qmfModeCurr == MODE_LP)); - self->psPossible = ((CAN_DO_PS(self->streamInfo.aot) && self->streamInfo.aacNumChannels == 1 && ! (self->flags & AC_MPS_PRESENT))) && self->qmfModeCurr == MODE_HQ ; - FDK_ASSERT( ! ( (self->flags & AC_MPS_PRESENT) && self->psPossible ) ); -} - -void CAacDecoder_SignalInterruption(HANDLE_AACDECODER self) -{ -} - -/*! - \brief Reset ancillary data struct. Call before parsing a new frame. - - \ancData Pointer to ancillary data structure - - \return Error code -*/ -static AAC_DECODER_ERROR CAacDecoder_AncDataReset(CAncData *ancData) -{ - int i; - for (i=0; i<8; i++) - { - ancData->offset[i] = 0; - } - ancData->nrElements = 0; - - return AAC_DEC_OK; -} - -/*! - \brief Initialize ancillary buffer - - \ancData Pointer to ancillary data structure - \buffer Pointer to (external) anc data buffer - \size Size of the buffer pointed on by buffer in bytes - - \return Error code -*/ -AAC_DECODER_ERROR CAacDecoder_AncDataInit(CAncData *ancData, unsigned char *buffer, int size) -{ - if (size >= 0) { - ancData->buffer = buffer; - ancData->bufferSize = size; - - CAacDecoder_AncDataReset(ancData); - - return AAC_DEC_OK; - } - - return AAC_DEC_ANC_DATA_ERROR; -} - -/*! - \brief Get one ancillary data element - - \ancData Pointer to ancillary data structure - \index Index of the anc data element to get - \ptr Pointer to a buffer receiving a pointer to the requested anc data element - \size Pointer to a buffer receiving the length of the requested anc data element in bytes - - \return Error code -*/ -AAC_DECODER_ERROR CAacDecoder_AncDataGet(CAncData *ancData, int index, unsigned char **ptr, int *size) -{ - AAC_DECODER_ERROR error = AAC_DEC_OK; - - *ptr = NULL; - *size = 0; - - if (index >= 0 && index < 8 && index < ancData->nrElements) - { - *ptr = &ancData->buffer[ancData->offset[index]]; - *size = ancData->offset[index+1] - ancData->offset[index]; - } - - return error; -} - - -/*! - \brief Parse ancillary data - - \ancData Pointer to ancillary data structure - \hBs Handle to FDK bitstream - \ancBytes Length of ancillary data to read from the bitstream - - \return Error code -*/ -static -AAC_DECODER_ERROR CAacDecoder_AncDataParse ( - CAncData *ancData, - HANDLE_FDK_BITSTREAM hBs, - const int ancBytes ) -{ - AAC_DECODER_ERROR error = AAC_DEC_OK; - int readBytes = 0; - - if (ancData->buffer != NULL) - { - if (ancBytes > 0) { - /* write ancillary data to external buffer */ - int offset = ancData->offset[ancData->nrElements]; - - if ((offset + ancBytes) > ancData->bufferSize) - { - error = AAC_DEC_TOO_SMALL_ANC_BUFFER; - } - else if (ancData->nrElements >= 8-1) - { - error = AAC_DEC_TOO_MANY_ANC_ELEMENTS; - } - else - { - int i; - - for (i = 0; i < ancBytes; i++) { - ancData->buffer[i+offset] = FDKreadBits(hBs, 8); - readBytes++; - } - - ancData->nrElements++; - ancData->offset[ancData->nrElements] = ancBytes + ancData->offset[ancData->nrElements-1]; - } - } - } - - readBytes = ancBytes - readBytes; - - if (readBytes > 0) { - /* skip data */ - FDKpushFor(hBs, readBytes<<3); - } - - return error; -} - -/*! - \brief Read Stream Data Element - - \bs Bitstream Handle - - \return Error code -*/ -static AAC_DECODER_ERROR CDataStreamElement_Read ( - HANDLE_FDK_BITSTREAM bs, - CAncData *ancData, - HANDLE_AAC_DRC hDrcInfo, - HANDLE_TRANSPORTDEC pTp, - UCHAR *elementInstanceTag, - UINT alignmentAnchor ) -{ - AAC_DECODER_ERROR error = AAC_DEC_OK; - UINT dataStart; - int dataByteAlignFlag, count; - - int crcReg = transportDec_CrcStartReg(pTp, 0); - - /* Element Instance Tag */ - *elementInstanceTag = FDKreadBits(bs,4); - /* Data Byte Align Flag */ - dataByteAlignFlag = FDKreadBits(bs,1); - - count = FDKreadBits(bs,8); - - if (count == 255) { - count += FDKreadBits(bs,8); /* EscCount */ - } - - if (dataByteAlignFlag) { - FDKbyteAlign(bs, alignmentAnchor); - } - - dataStart = FDKgetValidBits(bs); - - error = CAacDecoder_AncDataParse(ancData, bs, count); - transportDec_CrcEndReg(pTp, crcReg); - - { - INT readBits, dataBits = count<<3; - - /* Move to the beginning of the data junk */ - FDKpushBack(bs, dataStart-FDKgetValidBits(bs)); - - /* Read Anc data if available */ - readBits = aacDecoder_drcMarkPayload( hDrcInfo, bs, DVB_DRC_ANC_DATA ); - - if (readBits != dataBits) { - /* Move to the end again. */ - FDKpushBiDirectional(bs, FDKgetValidBits(bs)-dataStart+dataBits); - } - } - - return error; -} - -#ifdef TP_PCE_ENABLE -/*! - \brief Read Program Config Element - - \bs Bitstream Handle - \pTp Transport decoder handle for CRC handling - \pce Pointer to PCE buffer - \channelConfig Current channel configuration - \alignAnchor Anchor for byte alignment - - \return PCE status (-1: fail, 0: no new PCE, 1: PCE updated, 2: PCE updated need re-config). -*/ -static int CProgramConfigElement_Read ( - HANDLE_FDK_BITSTREAM bs, - HANDLE_TRANSPORTDEC pTp, - CProgramConfig *pce, - const UINT channelConfig, - const UINT alignAnchor ) -{ - int pceStatus = 0; - int crcReg; - - /* read PCE to temporal buffer first */ - C_ALLOC_SCRATCH_START(tmpPce, CProgramConfig, 1); - - CProgramConfig_Init(tmpPce); - CProgramConfig_Reset(tmpPce); - - crcReg = transportDec_CrcStartReg(pTp, 0); - - CProgramConfig_Read(tmpPce, bs, alignAnchor); - - transportDec_CrcEndReg(pTp, crcReg); - - if ( CProgramConfig_IsValid(tmpPce) - && (tmpPce->Profile == 1) ) - { - if ( !pce->isValid && (channelConfig > 0) ) { - /* Create a standard channel config PCE to compare with */ - CProgramConfig_GetDefault( pce, channelConfig ); - } - - if (pce->isValid) { - /* Compare the new and the old PCE (tags ignored) */ - switch ( CProgramConfig_Compare( pce, tmpPce ) ) - { - case 1: /* Channel configuration not changed. Just new metadata. */ - FDKmemcpy(pce, tmpPce, sizeof(CProgramConfig)); /* Store the complete PCE */ - pceStatus = 1; /* New PCE but no change of config */ - break; - case 2: /* The number of channels are identical but not the config */ - if (channelConfig == 0) { - FDKmemcpy(pce, tmpPce, sizeof(CProgramConfig)); /* Store the complete PCE */ - pceStatus = 2; /* Decoder needs re-configuration */ - } - break; - case -1: /* The channel configuration is completely different */ - pceStatus = -1; /* Not supported! */ - break; - case 0: /* Nothing to do because PCE matches the old one exactly. */ - default: - /* pceStatus = 0; */ - break; - } - } - } - - C_ALLOC_SCRATCH_END(tmpPce, CProgramConfig, 1); - - return pceStatus; -} -#endif /* TP_PCE_ENABLE */ - -/*! - \brief Parse Extension Payload - - \self Handle of AAC decoder - \count Pointer to bit counter. - \previous_element ID of previous element (required by some extension payloads) - - \return Error code -*/ -static -AAC_DECODER_ERROR CAacDecoder_ExtPayloadParse (HANDLE_AACDECODER self, - HANDLE_FDK_BITSTREAM hBs, - int *count, - MP4_ELEMENT_ID previous_element, - int elIndex, - int fIsFillElement) -{ - AAC_DECODER_ERROR error = AAC_DEC_OK; - EXT_PAYLOAD_TYPE extension_type; - int bytes = (*count) >> 3; - int crcFlag = 0; - - if (*count < 4) { - return AAC_DEC_PARSE_ERROR; - } else if ((INT)FDKgetValidBits(hBs) < *count) { - return AAC_DEC_DECODE_FRAME_ERROR; - } - - extension_type = (EXT_PAYLOAD_TYPE) FDKreadBits(hBs, 4); /* bs_extension_type */ - *count -= 4; - - switch (extension_type) - { - case EXT_DYNAMIC_RANGE: - { - INT readBits = aacDecoder_drcMarkPayload( self->hDrcInfo, hBs, MPEG_DRC_EXT_DATA ); - - if (readBits > *count) - { /* Read too much. Something went wrong! */ - error = AAC_DEC_PARSE_ERROR; - } - *count -= readBits; - } - break; - - - case EXT_SBR_DATA_CRC: - crcFlag = 1; - case EXT_SBR_DATA: - if (IS_CHANNEL_ELEMENT(previous_element)) { - SBR_ERROR sbrError; - - CAacDecoder_SyncQmfMode(self); - - sbrError = sbrDecoder_InitElement( - self->hSbrDecoder, - self->streamInfo.aacSampleRate, - self->streamInfo.extSamplingRate, - self->streamInfo.aacSamplesPerFrame, - self->streamInfo.aot, - previous_element, - elIndex - ); - - if (sbrError == SBRDEC_OK) { - sbrError = sbrDecoder_Parse ( - self->hSbrDecoder, - hBs, - count, - *count, - crcFlag, - previous_element, - elIndex, - self->flags & AC_INDEP ); - /* Enable SBR for implicit SBR signalling. */ - if (sbrError == SBRDEC_OK) { - self->sbrEnabled = 1; - } - } else { - /* Do not try to apply SBR because initializing the element failed. */ - self->sbrEnabled = 0; - } - /* Citation from ISO/IEC 14496-3 chapter 4.5.2.1.5.2 - Fill elements containing an extension_payload() with an extension_type of EXT_SBR_DATA - or EXT_SBR_DATA_CRC shall not contain any other extension_payload of any other extension_type. - */ - if (fIsFillElement) { - FDKpushBiDirectional(hBs, *count); - *count = 0; - } else { - /* If this is not a fill element with a known length, we are screwed an no further parsing makes sense. */ - if (sbrError != SBRDEC_OK) { - self->frameOK = 0; - } - } - } else { - error = AAC_DEC_PARSE_ERROR; - } - break; - - case EXT_FILL_DATA: - { - int temp; - - temp = FDKreadBits(hBs,4); - bytes--; - if (temp != 0) { - error = AAC_DEC_PARSE_ERROR; - break; - } - while (bytes > 0) { - temp = FDKreadBits(hBs,8); - bytes--; - if (temp != 0xa5) { - error = AAC_DEC_PARSE_ERROR; - break; - } - } - *count = bytes<<3; - } - break; - - case EXT_DATA_ELEMENT: - { - int dataElementVersion; - - dataElementVersion = FDKreadBits(hBs,4); - *count -= 4; - if (dataElementVersion == 0) /* ANC_DATA */ - { - int temp, dataElementLength = 0; - do { - temp = FDKreadBits(hBs,8); - *count -= 8; - dataElementLength += temp; - } while (temp == 255 ); - - CAacDecoder_AncDataParse(&self->ancData, hBs, dataElementLength); - *count -= (dataElementLength<<3); - } else { - /* align = 0 */ - error = AAC_DEC_PARSE_ERROR; - goto bail; - } - } - break; - - case EXT_DATA_LENGTH: - if ( !fIsFillElement /* Makes no sens to have an additional length in a fill ... */ - && (self->flags & AC_ER) ) /* ... element because this extension payload type was ... */ - { /* ... created to circumvent the missing length in ER-Syntax. */ - int bitCnt, len = FDKreadBits(hBs, 4); - *count -= 4; - - if (len == 15) { - int add_len = FDKreadBits(hBs, 8); - *count -= 8; - len += add_len; - - if (add_len == 255) { - len += FDKreadBits(hBs, 16); - *count -= 16; - } - } - len <<= 3; - bitCnt = len; - - if ( (EXT_PAYLOAD_TYPE)FDKreadBits(hBs, 4) == EXT_DATA_LENGTH ) { - /* Check NOTE 2: The extension_payload() included here must - not have extension_type == EXT_DATA_LENGTH. */ - error = AAC_DEC_PARSE_ERROR; - } else { - /* rewind and call myself again. */ - FDKpushBack(hBs, 4); - - error = - CAacDecoder_ExtPayloadParse ( - self, - hBs, - &bitCnt, - previous_element, - elIndex, - 0 ); - - *count -= len - bitCnt; - } - /* Note: the fall through in case the if statement above is not taken is intentional. */ - break; - } - - case EXT_FIL: - - default: - /* align = 4 */ - FDKpushFor(hBs, *count); - *count = 0; - break; - } - -bail: - if ( (error != AAC_DEC_OK) - && fIsFillElement ) - { /* Skip the remaining extension bytes */ - FDKpushBiDirectional(hBs, *count); - *count = 0; - /* Patch error code because decoding can go on. */ - error = AAC_DEC_OK; - /* Be sure that parsing errors have been stored. */ - } - return error; -} - -/* Stream Configuration and Information. - - This class holds configuration and information data for a stream to be decoded. It - provides the calling application as well as the decoder with substantial information, - e.g. profile, sampling rate, number of channels found in the bitstream etc. -*/ -static -void CStreamInfoInit(CStreamInfo *pStreamInfo) -{ - pStreamInfo->aacSampleRate = 0; - pStreamInfo->profile = -1; - pStreamInfo->aot = AOT_NONE; - - pStreamInfo->channelConfig = -1; - pStreamInfo->bitRate = 0; - pStreamInfo->aacSamplesPerFrame = 0; - - pStreamInfo->extAot = AOT_NONE; - pStreamInfo->extSamplingRate = 0; - - pStreamInfo->flags = 0; - - pStreamInfo->epConfig = -1; /* default is no ER */ - - pStreamInfo->numChannels = 0; - pStreamInfo->sampleRate = 0; - pStreamInfo->frameSize = 0; -} - -/*! - \brief Initialization of AacDecoderChannelInfo - - The function initializes the pointers to AacDecoderChannelInfo for each channel, - set the start values for window shape and window sequence of overlap&add to zero, - set the overlap buffer to zero and initializes the pointers to the window coefficients. - \param bsFormat is the format of the AAC bitstream - - \return AACDECODER instance -*/ -LINKSPEC_CPP HANDLE_AACDECODER CAacDecoder_Open(TRANSPORT_TYPE bsFormat) /*!< bitstream format (adif,adts,loas,...). */ -{ - HANDLE_AACDECODER self; - - self = GetAacDecoder(); - if (self == NULL) { - goto bail; - } - - /* Assign channel mapping info arrays (doing so removes dependency of settings header in API header). */ - self->streamInfo.pChannelIndices = self->channelIndices; - self->streamInfo.pChannelType = self->channelType; - - /* set default output mode */ - self->outputInterleaved = 1; /* interleaved */ - - /* initialize anc data */ - CAacDecoder_AncDataInit(&self->ancData, NULL, 0); - - /* initialize stream info */ - CStreamInfoInit(&self->streamInfo); - - /* initialize error concealment common data */ - CConcealment_InitCommonData(&self->concealCommonData); - - self->hDrcInfo = GetDrcInfo(); - if (self->hDrcInfo == NULL) { - goto bail; - } - /* Init common DRC structure */ - aacDecoder_drcInit( self->hDrcInfo ); - /* Set default frame delay */ - aacDecoder_drcSetParam ( - self->hDrcInfo, - DRC_BS_DELAY, - CConcealment_GetDelay(&self->concealCommonData) - ); - - - self->aacCommonData.workBufferCore1 = GetWorkBufferCore1(); - self->aacCommonData.workBufferCore2 = GetWorkBufferCore2(); - if (self->aacCommonData.workBufferCore1 == NULL - ||self->aacCommonData.workBufferCore2 == NULL ) - goto bail; - - return self; - -bail: - CAacDecoder_Close( self ); - - return NULL; -} - -/* Destroy aac decoder */ -LINKSPEC_CPP void CAacDecoder_Close(HANDLE_AACDECODER self) -{ - int ch; - - if (self == NULL) - return; - - for (ch=0; ch<(6); ch++) { - if (self->pAacDecoderStaticChannelInfo[ch] != NULL) { - if (self->pAacDecoderStaticChannelInfo[ch]->pOverlapBuffer != NULL) { - FreeOverlapBuffer (&self->pAacDecoderStaticChannelInfo[ch]->pOverlapBuffer); - } - if (self->pAacDecoderStaticChannelInfo[ch] != NULL) { - FreeAacDecoderStaticChannelInfo (&self->pAacDecoderStaticChannelInfo[ch]); - } - } - if (self->pAacDecoderChannelInfo[ch] != NULL) { - FreeAacDecoderChannelInfo (&self->pAacDecoderChannelInfo[ch]); - } - } - - self->aacChannels = 0; - - if (self->hDrcInfo) { - FreeDrcInfo(&self->hDrcInfo); - } - - if (self->aacCommonData.workBufferCore1 != NULL) { - FreeWorkBufferCore1 (&self->aacCommonData.workBufferCore1); - } - if (self->aacCommonData.workBufferCore2 != NULL) { - FreeWorkBufferCore2 (&self->aacCommonData.workBufferCore2); - } - - FreeAacDecoder ( &self); -} - - -/*! - \brief Initialization of decoder instance - - The function initializes the decoder. - - \return error status: 0 for success, <>0 for unsupported configurations -*/ -LINKSPEC_CPP AAC_DECODER_ERROR CAacDecoder_Init(HANDLE_AACDECODER self, const CSAudioSpecificConfig *asc) -{ - AAC_DECODER_ERROR err = AAC_DEC_OK; - INT ascChannels, ch, ascChanged = 0; - - if (!self) - return AAC_DEC_INVALID_HANDLE; - - // set profile and check for supported aot - // leave profile on default (=-1) for all other supported MPEG-4 aot's except aot=2 (=AAC-LC) - switch (asc->m_aot) { - case AOT_AAC_LC: - self->streamInfo.profile = 1; - break; - - case AOT_SBR: - case AOT_PS: - case AOT_ER_AAC_LD: - case AOT_ER_AAC_ELD: - break; - - default: - return AAC_DEC_UNSUPPORTED_AOT; - } - - CProgramConfig_Init(&self->pce); - - /* set channels */ - switch (asc->m_channelConfiguration) { - case 0: -#ifdef TP_PCE_ENABLE - /* get channels from program config (ASC) */ - if (CProgramConfig_IsValid(&asc->m_progrConfigElement)) { - ascChannels = asc->m_progrConfigElement.NumChannels; - if (ascChannels > 0) { - int el; - /* valid number of channels -> copy program config element (PCE) from ASC */ - FDKmemcpy(&self->pce, &asc->m_progrConfigElement, sizeof(CProgramConfig)); - /* Built element table */ - el = CProgramConfig_GetElementTable(&asc->m_progrConfigElement, self->elements, 7); - for (; el<7; el++) { - self->elements[el] = ID_NONE; - } - } else { - return AAC_DEC_UNSUPPORTED_CHANNELCONFIG; - } - } else { - if (transportDec_GetFormat(self->hInput) == TT_MP4_ADTS) { - /* set default max_channels for memory allocation because in implicit channel mapping mode - we don't know the actual number of channels until we processed at least one raw_data_block(). */ - ascChannels = (6); - } else { - return AAC_DEC_UNSUPPORTED_CHANNELCONFIG; - } - } -#else /* TP_PCE_ENABLE */ - return AAC_DEC_UNSUPPORTED_CHANNELCONFIG; -#endif /* TP_PCE_ENABLE */ - break; - case 1: case 2: case 3: case 4: case 5: case 6: - ascChannels = asc->m_channelConfiguration; - break; - case 7: - ascChannels = 8; - break; - default: - return AAC_DEC_UNSUPPORTED_CHANNELCONFIG; - } - - /* Initialize constant mappings for channel config 1-7 */ - if (asc->m_channelConfiguration > 0) { - int el; - FDKmemcpy(self->elements, elementsTab[asc->m_channelConfiguration-1], sizeof(MP4_ELEMENT_ID)*FDKmin(7,7)); - for (el=7; el<7; el++) { - self->elements[el] = ID_NONE; - } - for (ch=0; ch<ascChannels; ch++) { - self->chMapping[ch] = ch; - } - for (; ch<(6); ch++) { - self->chMapping[ch] = 255; - } - } - #ifdef TP_PCE_ENABLE - else { - if (CProgramConfig_IsValid(&asc->m_progrConfigElement)) { - /* Set matrix mixdown infos if available from PCE. */ - pcmDmx_SetMatrixMixdownFromPce ( self->hPcmUtils, - asc->m_progrConfigElement.MatrixMixdownIndexPresent, - asc->m_progrConfigElement.MatrixMixdownIndex, - asc->m_progrConfigElement.PseudoSurroundEnable ); - } - } - #endif - - self->streamInfo.channelConfig = asc->m_channelConfiguration; - - if (ascChannels > (6)) { - return AAC_DEC_UNSUPPORTED_CHANNELCONFIG; - } - if (self->streamInfo.aot != asc->m_aot) { - self->streamInfo.aot = asc->m_aot; - ascChanged = 1; - } - - if (self->streamInfo.aacSamplesPerFrame != (INT)asc->m_samplesPerFrame) { - self->streamInfo.aacSamplesPerFrame = asc->m_samplesPerFrame; - ascChanged = 1; - } - - self->streamInfo.bitRate = 0; - - /* Set syntax flags */ - self->flags = 0; - - self->streamInfo.extAot = asc->m_extensionAudioObjectType; - self->streamInfo.extSamplingRate = asc->m_extensionSamplingFrequency; - self->flags |= (asc->m_sbrPresentFlag) ? AC_SBR_PRESENT : 0; - self->flags |= (asc->m_psPresentFlag) ? AC_PS_PRESENT : 0; - self->sbrEnabled = 0; - - /* --------- vcb11 ------------ */ - self->flags |= (asc->m_vcb11Flag) ? AC_ER_VCB11 : 0; - - /* ---------- rvlc ------------ */ - self->flags |= (asc->m_rvlcFlag) ? AC_ER_RVLC : 0; - - /* ----------- hcr ------------ */ - self->flags |= (asc->m_hcrFlag) ? AC_ER_HCR : 0; - - if (asc->m_aot == AOT_ER_AAC_ELD) { - self->flags |= AC_ELD; - self->flags |= (asc->m_sc.m_eldSpecificConfig.m_sbrCrcFlag) ? AC_SBRCRC : 0; - self->flags |= (asc->m_sc.m_eldSpecificConfig.m_useLdQmfTimeAlign) ? AC_LD_MPS : 0; - } - self->flags |= (asc->m_aot == AOT_ER_AAC_LD) ? AC_LD : 0; - self->flags |= (asc->m_epConfig >= 0) ? AC_ER : 0; - - - if (asc->m_sbrPresentFlag) { - self->sbrEnabled = 1; - self->sbrEnabledPrev = 1; - } - if (asc->m_psPresentFlag) { - self->flags |= AC_PS_PRESENT; - } - - if ( (asc->m_epConfig >= 0) - && (asc->m_channelConfiguration <= 0) ) { - /* we have to know the number of channels otherwise no decoding is possible */ - return AAC_DEC_UNSUPPORTED_ER_FORMAT; - } - - self->streamInfo.epConfig = asc->m_epConfig; - /* self->hInput->asc.m_epConfig = asc->m_epConfig; */ - - if (asc->m_epConfig > 1) - return AAC_DEC_UNSUPPORTED_ER_FORMAT; - - /* Check if samplerate changed. */ - if (self->streamInfo.aacSampleRate != (INT)asc->m_samplingFrequency) { - AAC_DECODER_ERROR error; - - ascChanged = 1; - - /* Update samplerate info. */ - error = getSamplingRateInfo(&self->samplingRateInfo, asc->m_samplesPerFrame, asc->m_samplingFrequencyIndex, asc->m_samplingFrequency); - if (error != AAC_DEC_OK) { - return error; - } - self->streamInfo.aacSampleRate = self->samplingRateInfo.samplingRate; - } - - /* Check if amount of channels has changed. */ - if (self->ascChannels != ascChannels) - { - ascChanged = 1; - - /* Allocate all memory structures for each channel */ - { - for (ch = 0; ch < ascChannels; ch++) { - CAacDecoderDynamicData *aacDecoderDynamicData = &self->aacCommonData.workBufferCore1->pAacDecoderDynamicData[ch%2]; - - /* initialize pointer to CAacDecoderChannelInfo */ - if (self->pAacDecoderChannelInfo[ch] == NULL) { - self->pAacDecoderChannelInfo[ch] = GetAacDecoderChannelInfo(ch); - /* This is temporary until the DynamicData is split into two or more regions! - The memory could be reused after completed core decoding. */ - if (self->pAacDecoderChannelInfo[ch] == NULL) { - goto bail; - } - /* Hook shared work memory into channel data structure */ - self->pAacDecoderChannelInfo[ch]->pDynData = aacDecoderDynamicData; - self->pAacDecoderChannelInfo[ch]->pComData = &self->aacCommonData; - } - - /* Allocate persistent channel memory */ - if (self->pAacDecoderStaticChannelInfo[ch] == NULL) { - self->pAacDecoderStaticChannelInfo[ch] = GetAacDecoderStaticChannelInfo(ch); - if (self->pAacDecoderStaticChannelInfo[ch] == NULL) { - goto bail; - } - self->pAacDecoderStaticChannelInfo[ch]->pOverlapBuffer = GetOverlapBuffer(ch); /* This area size depends on the AOT */ - if (self->pAacDecoderStaticChannelInfo[ch]->pOverlapBuffer == NULL) { - goto bail; - } - self->pAacDecoderChannelInfo[ch]->pSpectralCoefficient = (SPECTRAL_PTR) &self->aacCommonData.workBufferCore2[ch*1024]; - - } - CPns_InitPns(&self->pAacDecoderChannelInfo[ch]->data.aac.PnsData, &self->aacCommonData.pnsInterChannelData, &self->aacCommonData.pnsCurrentSeed, self->aacCommonData.pnsRandomSeed); - } - - if (ascChannels > self->aacChannels) - { - /* Make allocated channel count persistent in decoder context. */ - self->aacChannels = ascChannels; - } - - HcrInitRom(&self->aacCommonData.overlay.aac.erHcrInfo); - setHcrType(&self->aacCommonData.overlay.aac.erHcrInfo, ID_SCE); - } - - /* Make amount of signalled channels persistent in decoder context. */ - self->ascChannels = ascChannels; - } - - /* Update structures */ - if (ascChanged) { - - /* Things to be done for each channel, which do not involve allocating memory. - Doing these things only on the channels needed for the current configuration - (ascChannels) could lead to memory access violation later (error concealment). */ - for (ch = 0; ch < self->aacChannels; ch++) { - switch (self->streamInfo.aot) { - case AOT_ER_AAC_ELD: - case AOT_ER_AAC_LD: - self->pAacDecoderChannelInfo[ch]->granuleLength = self->streamInfo.aacSamplesPerFrame; - break; - default: - self->pAacDecoderChannelInfo[ch]->granuleLength = self->streamInfo.aacSamplesPerFrame / 8; - break; - } - mdct_init( &self->pAacDecoderStaticChannelInfo[ch]->IMdct, - self->pAacDecoderStaticChannelInfo[ch]->pOverlapBuffer, - OverlapBufferSize ); - - - /* Reset DRC control data for this channel */ - aacDecoder_drcInitChannelData ( &self->pAacDecoderStaticChannelInfo[ch]->drcData ); - - /* Reset concealment only if ASC changed. Otherwise it will be done with any config callback. - E.g. every time the LATM SMC is present. */ - CConcealment_InitChannelData(&self->pAacDecoderStaticChannelInfo[ch]->concealmentInfo, - &self->concealCommonData, - self->streamInfo.aacSamplesPerFrame ); - } - } - - /* Update externally visible copy of flags */ - self->streamInfo.flags = self->flags; - - return err; - -bail: - aacDecoder_Close( self ); - return AAC_DEC_OUT_OF_MEMORY; -} - - -LINKSPEC_CPP AAC_DECODER_ERROR CAacDecoder_DecodeFrame( - HANDLE_AACDECODER self, - const UINT flags, - INT_PCM *pTimeData, - const INT timeDataSize, - const INT interleaved - ) -{ - AAC_DECODER_ERROR ErrorStatus = AAC_DEC_OK; - - CProgramConfig *pce; - HANDLE_FDK_BITSTREAM bs = transportDec_GetBitstream(self->hInput, 0); - - MP4_ELEMENT_ID type = ID_NONE; /* Current element type */ - INT aacChannels=0; /* Channel counter for channels found in the bitstream */ - - INT auStartAnchor = (INT)FDKgetValidBits(bs); /* AU start bit buffer position for AU byte alignment */ - - self->frameOK = 1; - - /* Any supported base layer valid AU will require more than 16 bits. */ - if ( (transportDec_GetAuBitsRemaining(self->hInput, 0) < 15) && (flags & (AACDEC_CONCEAL|AACDEC_FLUSH)) == 0) { - self->frameOK = 0; - ErrorStatus = AAC_DEC_DECODE_FRAME_ERROR; - } - - - /* Reset Program Config structure */ - pce = &self->pce; - CProgramConfig_Reset(pce); - - CAacDecoder_AncDataReset(&self->ancData); - - { - int ch; - - if (self->streamInfo.channelConfig == 0) { - /* Init Channel/Element mapping table */ - for (ch=0; ch<(6); ch++) { - self->chMapping[ch] = 255; - } - if (!CProgramConfig_IsValid(pce)) { - int el; - for (el=0; el<7; el++) { - self->elements[el] = ID_NONE; - } - } - } - } - - /* Check sampling frequency */ - switch ( self->streamInfo.aacSampleRate ) { - case 16000: - case 12000: - case 11025: - case 8000: - case 7350: - case 48000: - case 44100: - case 32000: - case 24000: - case 22050: - break; - default: - if ( ! (self->flags & (AC_USAC|AC_RSVD50)) ) { - return AAC_DEC_UNSUPPORTED_SAMPLINGRATE; - } - break; - } - - - if ( flags & AACDEC_CLRHIST ) - { - int ch; - /* Clear history */ - for (ch = 0; ch < self->aacChannels; ch++) { - /* Reset concealment */ - CConcealment_InitChannelData(&self->pAacDecoderStaticChannelInfo[ch]->concealmentInfo, - &self->concealCommonData, - self->streamInfo.aacSamplesPerFrame ); - /* Clear concealment buffers to get rid of the complete history */ - FDKmemclear(self->pAacDecoderStaticChannelInfo[ch]->concealmentInfo.spectralCoefficient, 1024 * sizeof(FIXP_CNCL)); - FDKmemclear(self->pAacDecoderStaticChannelInfo[ch]->concealmentInfo.specScale, 8 * sizeof(SHORT)); - /* Clear overlap-add buffers to avoid clicks. */ - FDKmemclear(self->pAacDecoderStaticChannelInfo[ch]->IMdct.overlap.freq, OverlapBufferSize*sizeof(FIXP_DBL)); - } - } - - - -#ifdef TP_PCE_ENABLE - int pceRead = 0; /* Flag indicating a PCE in the current raw_data_block() */ -#endif - - - INT hdaacDecoded = 0; - MP4_ELEMENT_ID previous_element = ID_END; /* Last element ID (required for extension payload mapping */ - UCHAR previous_element_index = 0; /* Canonical index of last element */ - int element_count = 0; /* Element counter for elements found in the bitstream */ - int el_cnt[ID_LAST] = { 0 }; /* element counter ( robustness ) */ - - while ( (type != ID_END) && (! (flags & (AACDEC_CONCEAL | AACDEC_FLUSH))) && self->frameOK ) - { - int el_channels; - - if (! (self->flags & (AC_USAC|AC_RSVD50|AC_ELD|AC_SCALABLE|AC_ER))) - type = (MP4_ELEMENT_ID) FDKreadBits(bs,3); - else - type = self->elements[element_count]; - - setHcrType(&self->aacCommonData.overlay.aac.erHcrInfo, type); - - - if ((INT)FDKgetValidBits(bs) < 0) - self->frameOK = 0; - - switch (type) - { - case ID_SCE: - case ID_CPE: - case ID_LFE: - /* - Consistency check - */ - - if (type == ID_CPE) { - el_channels = 2; - } else { - el_channels = 1; - } - - if ( (el_cnt[type] >= (self->ascChannels>>(el_channels-1))) || (aacChannels > (self->ascChannels-el_channels)) ) { - ErrorStatus = AAC_DEC_DECODE_FRAME_ERROR; - self->frameOK = 0; - break; - } - - if ( !(self->flags & (AC_USAC|AC_RSVD50)) ) { - int ch; - for (ch=0; ch < el_channels; ch+=1) { - CPns_ResetData(&self->pAacDecoderChannelInfo[aacChannels+ch]->data.aac.PnsData, - &self->pAacDecoderChannelInfo[aacChannels+ch]->pComData->pnsInterChannelData); - } - } - - if(self->frameOK) { - ErrorStatus = CChannelElement_Read( bs, - &self->pAacDecoderChannelInfo[aacChannels], - &self->pAacDecoderStaticChannelInfo[aacChannels], - self->streamInfo.aot, - &self->samplingRateInfo, - self->flags, - self->streamInfo.aacSamplesPerFrame, - el_channels, - self->streamInfo.epConfig, - self->hInput - ); - if (ErrorStatus) { - self->frameOK = 0; - } - } - - - if ( self->frameOK) { - /* Lookup the element and decode it only if it belongs to the current program */ - if ( CProgramConfig_LookupElement( - pce, - self->streamInfo.channelConfig, - self->pAacDecoderChannelInfo[aacChannels]->ElementInstanceTag, - aacChannels, - self->chMapping, - self->channelType, - self->channelIndices, - &previous_element_index, - self->elements, - type) ) - { - if ( !hdaacDecoded ) { - CChannelElement_Decode( - &self->pAacDecoderChannelInfo[aacChannels], - &self->pAacDecoderStaticChannelInfo[aacChannels], - &self->samplingRateInfo, - self->flags, - el_channels - ); - } - aacChannels += 1; - if (type == ID_CPE) { - aacChannels += 1; - } - } - else { - self->frameOK = 0; - } - /* Create SBR element for SBR for upsampling for LFE elements, - and if SBR was explicitly signaled, because the first frame(s) - may not contain SBR payload (broken encoder, bit errors). */ - if ( (self->flags & AC_SBR_PRESENT) || (self->sbrEnabled == 1) ) - { - SBR_ERROR sbrError; - - sbrError = sbrDecoder_InitElement( - self->hSbrDecoder, - self->streamInfo.aacSampleRate, - self->streamInfo.extSamplingRate, - self->streamInfo.aacSamplesPerFrame, - self->streamInfo.aot, - type, - previous_element_index - ); - if (sbrError != SBRDEC_OK) { - /* Do not try to apply SBR because initializing the element failed. */ - self->sbrEnabled = 0; - } - } - } - - el_cnt[type]++; - break; - - case ID_CCE: - /* - Consistency check - */ - if ( el_cnt[type] > self->ascChannels ) { - ErrorStatus = AAC_DEC_DECODE_FRAME_ERROR; - self->frameOK = 0; - break; - } - - if (self->frameOK) - { - /* memory for spectral lines temporal on scratch */ - C_ALLOC_SCRATCH_START(mdctSpec, FIXP_DBL, 1024); - - /* create dummy channel for CCE parsing on stack */ - CAacDecoderChannelInfo tmpAacDecoderChannelInfo, *pTmpAacDecoderChannelInfo; - - FDKmemclear(mdctSpec, 1024*sizeof(FIXP_DBL)); - - tmpAacDecoderChannelInfo.pDynData = self->aacCommonData.workBufferCore1->pAacDecoderDynamicData; - tmpAacDecoderChannelInfo.pComData = &self->aacCommonData; - tmpAacDecoderChannelInfo.pSpectralCoefficient = (SPECTRAL_PTR)mdctSpec; - /* Assume AAC-LC */ - tmpAacDecoderChannelInfo.granuleLength = self->streamInfo.aacSamplesPerFrame / 8; - - /* Reset PNS data. */ - CPns_ResetData(&tmpAacDecoderChannelInfo.data.aac.PnsData, &tmpAacDecoderChannelInfo.pComData->pnsInterChannelData); - - pTmpAacDecoderChannelInfo = &tmpAacDecoderChannelInfo; - /* do CCE parsing */ - ErrorStatus = CChannelElement_Read( bs, - &pTmpAacDecoderChannelInfo, - NULL, - self->streamInfo.aot, - &self->samplingRateInfo, - self->flags, - self->streamInfo.aacSamplesPerFrame, - 1, - self->streamInfo.epConfig, - self->hInput - ); - - C_ALLOC_SCRATCH_END(mdctSpec, FIXP_DBL, 1024); - - if (ErrorStatus) { - self->frameOK = 0; - } - - if (self->frameOK) { - /* Lookup the element and decode it only if it belongs to the current program */ - if (CProgramConfig_LookupElement( - pce, - self->streamInfo.channelConfig, - pTmpAacDecoderChannelInfo->ElementInstanceTag, - 0, - self->chMapping, - self->channelType, - self->channelIndices, - &previous_element_index, - self->elements, - type) ) - { - /* decoding of CCE not supported */ - } - else { - self->frameOK = 0; - } - } - } - el_cnt[type]++; - break; - - case ID_DSE: - { - UCHAR element_instance_tag; - - CDataStreamElement_Read( bs, - &self->ancData, - self->hDrcInfo, - self->hInput, - &element_instance_tag, - auStartAnchor ); - - if (!CProgramConfig_LookupElement( - pce, - self->streamInfo.channelConfig, - element_instance_tag, - 0, - self->chMapping, - self->channelType, - self->channelIndices, - &previous_element_index, - self->elements, - type) ) - { - /* most likely an error in bitstream occured */ - //self->frameOK = 0; - } - } - - { - UCHAR *pDvbAncData = NULL; - AAC_DECODER_ERROR ancErr; - int ancIndex; - int dvbAncDataSize = 0; - - /* Ask how many anc data elements are in buffer */ - ancIndex = self->ancData.nrElements - 1; - /* Get the last one (if available) */ - ancErr = CAacDecoder_AncDataGet( &self->ancData, - ancIndex, - &pDvbAncData, - &dvbAncDataSize ); - - if (ancErr == AAC_DEC_OK) { - pcmDmx_ReadDvbAncData ( - self->hPcmUtils, - pDvbAncData, - dvbAncDataSize, - 0 /* not mpeg2 */ ); - } - } - break; - -#ifdef TP_PCE_ENABLE - case ID_PCE: - { - int result = CProgramConfigElement_Read( - bs, - self->hInput, - pce, - self->streamInfo.channelConfig, - auStartAnchor ); - if ( result < 0 ) { - /* Something went wrong */ - ErrorStatus = AAC_DEC_PARSE_ERROR; - self->frameOK = 0; - } - else if ( result > 1 ) { - /* Built element table */ - int elIdx = CProgramConfig_GetElementTable(pce, self->elements, 7); - /* Reset the remaining tabs */ - for ( ; elIdx<7; elIdx++) { - self->elements[elIdx] = ID_NONE; - } - /* Make new number of channel persistant */ - self->ascChannels = pce->NumChannels; - /* If PCE is not first element conceal this frame to avoid inconsistencies */ - if ( element_count != 0 ) { - self->frameOK = 0; - } - } - pceRead = (result>=0) ? 1 : 0; - } - break; -#endif /* TP_PCE_ENABLE */ - - case ID_FIL: - { - int bitCnt = FDKreadBits(bs,4); /* bs_count */ - - if (bitCnt == 15) - { - int esc_count = FDKreadBits(bs,8); /* bs_esc_count */ - bitCnt = esc_count + 14; - } - - /* Convert to bits */ - bitCnt <<= 3; - - while (bitCnt > 0) { - ErrorStatus = CAacDecoder_ExtPayloadParse(self, bs, &bitCnt, previous_element, previous_element_index, 1); - if (ErrorStatus != AAC_DEC_OK) { - self->frameOK = 0; - break; - } - } - } - break; - - case ID_EXT: - { - INT bitCnt = 0; - - /* get the remaining bits of this frame */ - bitCnt = transportDec_GetAuBitsRemaining(self->hInput, 0); - - if ( (bitCnt > 0) && (self->flags & AC_SBR_PRESENT) && (self->flags & (AC_USAC|AC_RSVD50|AC_ELD)) ) - { - SBR_ERROR err = SBRDEC_OK; - int elIdx, numChElements = el_cnt[ID_SCE] + el_cnt[ID_CPE]; - - for (elIdx = 0; elIdx < numChElements; elIdx += 1) - { - err = sbrDecoder_Parse ( - self->hSbrDecoder, - bs, - &bitCnt, - -1, - self->flags & AC_SBRCRC, - self->elements[elIdx], - elIdx, - self->flags & AC_INDEP ); - - if (err != SBRDEC_OK) { - break; - } - } - if (err == SBRDEC_OK) { - self->sbrEnabled = 1; - } else { - self->frameOK = 0; - } - } - - - if ( ! (self->flags & (AC_USAC|AC_RSVD50|AC_DRM)) ) - { - while ( bitCnt > 7 ) { - ErrorStatus = CAacDecoder_ExtPayloadParse(self, bs, &bitCnt, previous_element, previous_element_index, 0); - if (ErrorStatus != AAC_DEC_OK) { - self->frameOK = 0; - ErrorStatus = AAC_DEC_PARSE_ERROR; - break; - } - } - } - } - break; - - case ID_END: - break; - - default: - ErrorStatus = AAC_DEC_DECODE_FRAME_ERROR; - self->frameOK = 0; - break; - } - - previous_element = type; - element_count++; - - } /* while ( (type != ID_END) ... ) */ - - if ( !(flags & (AACDEC_CONCEAL|AACDEC_FLUSH)) ) - { - /* Byte alignment with respect to the first bit of the raw_data_block(). */ - { - FDKbyteAlign(bs, auStartAnchor); - } - - /* Check if all bits of the raw_data_block() have been read. */ - if ( transportDec_GetAuBitsTotal(self->hInput, 0) > 0 ) { - INT unreadBits = transportDec_GetAuBitsRemaining(self->hInput, 0); - if ( unreadBits != 0 ) { - - self->frameOK = 0; - /* Do not overwrite current error */ - if (ErrorStatus == AAC_DEC_OK && self->frameOK == 0) { - ErrorStatus = AAC_DEC_PARSE_ERROR; - } - /* Always put the bitbuffer at the right position after the current Access Unit. */ - FDKpushBiDirectional(bs, unreadBits); - } - } - - /* Check the last element. The terminator (ID_END) has to be the last one (even if ER syntax is used). */ - if ( self->frameOK && type != ID_END ) { - /* Do not overwrite current error */ - if (ErrorStatus == AAC_DEC_OK) { - ErrorStatus = AAC_DEC_PARSE_ERROR; - } - self->frameOK = 0; - } - } - - /* More AAC channels than specified by the ASC not allowed. */ - if ( (aacChannels == 0 || aacChannels > self->aacChannels) && !(flags & (AACDEC_CONCEAL|AACDEC_FLUSH)) ) { - { - /* Do not overwrite current error */ - if (ErrorStatus == AAC_DEC_OK) { - ErrorStatus = AAC_DEC_DECODE_FRAME_ERROR; - } - self->frameOK = 0; - } - aacChannels = 0; - } - else if ( aacChannels > self->ascChannels ) { - /* Do not overwrite current error */ - if (ErrorStatus == AAC_DEC_OK) { - ErrorStatus = AAC_DEC_UNSUPPORTED_FORMAT; - } - self->frameOK = 0; - aacChannels = 0; - } - - if ( TRANSPORTDEC_OK != transportDec_CrcCheck(self->hInput) ) - { - self->frameOK=0; - } - - /* store or restore the number of channels */ - if ( self->frameOK && !(flags &(AACDEC_CONCEAL|AACDEC_FLUSH)) ) { - self->concealChannels = aacChannels; /* store */ - self->sbrEnabledPrev = self->sbrEnabled; - } else { - if (self->aacChannels > 0) { - aacChannels = self->concealChannels; /* restore */ - self->sbrEnabled = self->sbrEnabledPrev; - } - } - - /* Update number of output channels */ - self->streamInfo.aacNumChannels = aacChannels; - - #ifdef TP_PCE_ENABLE - if (pceRead == 1 && CProgramConfig_IsValid(pce)) { - /* Set matrix mixdown infos if available from PCE. */ - pcmDmx_SetMatrixMixdownFromPce ( self->hPcmUtils, - pce->MatrixMixdownIndexPresent, - pce->MatrixMixdownIndex, - pce->PseudoSurroundEnable ); - } - #endif - - /* If there is no valid data to transfrom into time domain, return. */ - if ( ! IS_OUTPUT_VALID(ErrorStatus) ) { - return ErrorStatus; - } - - /* - Inverse transform - */ - { - int stride, offset, c; - - /* Extract DRC control data and map it to channels (without bitstream delay) */ - aacDecoder_drcProlog ( - self->hDrcInfo, - bs, - self->pAacDecoderStaticChannelInfo, - self->pce.ElementInstanceTag, - self->chMapping, - aacChannels - ); - - /* "c" iterates in canonical MPEG channel order */ - for (c=0; c < aacChannels; c++) - { - CAacDecoderChannelInfo *pAacDecoderChannelInfo; - - /* Select correct pAacDecoderChannelInfo for current channel */ - if (self->chMapping[c] >= aacChannels) { - pAacDecoderChannelInfo = self->pAacDecoderChannelInfo[c]; - } else { - pAacDecoderChannelInfo = self->pAacDecoderChannelInfo[self->chMapping[c]]; - } - - /* Setup offset and stride for time buffer traversal. */ - if (interleaved) { - stride = aacChannels; - offset = self->channelOutputMapping[aacChannels-1][c]; - } else { - stride = 1; - offset = self->channelOutputMapping[aacChannels-1][c] * self->streamInfo.aacSamplesPerFrame; - } - - - /* - Conceal defective spectral data - */ - CConcealment_Apply(&self->pAacDecoderStaticChannelInfo[c]->concealmentInfo, - pAacDecoderChannelInfo, - self->pAacDecoderStaticChannelInfo[c], - &self->samplingRateInfo, - self->streamInfo.aacSamplesPerFrame, - 0, - (self->frameOK && !(flags&AACDEC_CONCEAL)), - self->flags - ); - - - if (flags & (AACDEC_INTR|AACDEC_CLRHIST)) { - /* Reset DRC control data for this channel */ - aacDecoder_drcInitChannelData ( &self->pAacDecoderStaticChannelInfo[c]->drcData ); - } - /* DRC processing */ - aacDecoder_drcApply ( - self->hDrcInfo, - self->hSbrDecoder, - pAacDecoderChannelInfo, - &self->pAacDecoderStaticChannelInfo[c]->drcData, - c, - self->streamInfo.aacSamplesPerFrame, - self->sbrEnabled - ); - - switch (pAacDecoderChannelInfo->renderMode) - { - case AACDEC_RENDER_IMDCT: - CBlock_FrequencyToTime( - self->pAacDecoderStaticChannelInfo[c], - pAacDecoderChannelInfo, - pTimeData + offset, - self->streamInfo.aacSamplesPerFrame, - stride, - (self->frameOK && !(flags&AACDEC_CONCEAL)), - self->aacCommonData.workBufferCore1->mdctOutTemp - ); - break; - case AACDEC_RENDER_ELDFB: - CBlock_FrequencyToTimeLowDelay( - self->pAacDecoderStaticChannelInfo[c], - pAacDecoderChannelInfo, - pTimeData + offset, - self->streamInfo.aacSamplesPerFrame, - stride - ); - break; - default: - ErrorStatus = AAC_DEC_UNKNOWN; - break; - } - if ( flags&AACDEC_FLUSH ) { - FDKmemclear(pAacDecoderChannelInfo->pSpectralCoefficient, sizeof(FIXP_DBL)*self->streamInfo.aacSamplesPerFrame); - FDKmemclear(self->pAacDecoderStaticChannelInfo[c]->pOverlapBuffer, OverlapBufferSize*sizeof(FIXP_DBL)); - } - } - - - /* Extract DRC control data and map it to channels (with bitstream delay) */ - aacDecoder_drcEpilog ( - self->hDrcInfo, - bs, - self->pAacDecoderStaticChannelInfo, - self->pce.ElementInstanceTag, - self->chMapping, - aacChannels - ); - } - - - /* Reorder channel type information tables. */ - { - AUDIO_CHANNEL_TYPE types[(6)]; - UCHAR idx[(6)]; - int c; - - FDK_ASSERT(sizeof(self->channelType) == sizeof(types)); - FDK_ASSERT(sizeof(self->channelIndices) == sizeof(idx)); - - FDKmemcpy(types, self->channelType, sizeof(types)); - FDKmemcpy(idx, self->channelIndices, sizeof(idx)); - - for (c=0; c<aacChannels; c++) { - self->channelType[self->channelOutputMapping[aacChannels-1][c]] = types[c]; - self->channelIndices[self->channelOutputMapping[aacChannels-1][c]] = idx[c]; - } - } - - self->blockNumber++; - - return ErrorStatus; -} - -/*! - \brief returns the streaminfo pointer - - The function hands back a pointer to the streaminfo structure - - \return pointer to the struct -*/ -LINKSPEC_CPP CStreamInfo* CAacDecoder_GetStreamInfo ( HANDLE_AACDECODER self ) -{ - if (!self) { - return NULL; - } - return &self->streamInfo; -} - - - - diff --git a/libAACdec/src/aacdecoder.h b/libAACdec/src/aacdecoder.h deleted file mode 100644 index 16351e6..0000000 --- a/libAACdec/src/aacdecoder.h +++ /dev/null @@ -1,312 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - Description: - -******************************************************************************/ - -#ifndef AACDECODER_H -#define AACDECODER_H - -#include "common_fix.h" - -#include "FDK_bitstream.h" - -#include "channel.h" - -#include "tpdec_lib.h" -#include "FDK_audio.h" - -#include "block.h" - -#include "genericStds.h" - - -#include "sbrdecoder.h" - - -#include "aacdec_drc.h" - - #include "pcmutils_lib.h" - - -/* Capabilities flags */ -#define CAPF_AAC_LC 0x00000001 -#define CAPF_AAC_LD 0x00000002 -#define CAPF_AAC_SCAL 0x00000004 -#define CAPF_AAC_ER 0x00000008 -#define CAPF_AAC_480 0x00000010 -#define CAPF_AAC_512 0x00000020 -#define CAPF_AAC_960 0x00000040 -#define CAPF_AAC_1024 0x00000080 -#define CAPF_AAC_HCR 0x00000100 -#define CAPF_AAC_VCB11 0x00000200 -#define CAPF_AAC_RVLC 0x00000400 -#define CAPF_AAC_MPEG4 0x00000800 /* PNS */ -#define CAPF_AAC_DRC 0x00001000 -#define CAPF_AAC_CONCEAL 0x00002000 -#define CAPF_AAC_DRM_BSFORMAT 0x00004000 -#define CAPF_AAC_BSAC 0x00008000 - -typedef struct AAC_DECODER_INSTANCE *HANDLE_AACDECODER; - - -enum -{ - L = 0, - R = 1 -}; - -typedef struct { - unsigned char *buffer; - int bufferSize; - int offset[8]; - int nrElements; -} CAncData; - -typedef enum { - NOT_DEFINED = -1, - MODE_HQ = 0, - MODE_LP = 1 -} QMF_MODE; - -typedef struct { - int bsDelay; -} SBR_PARAMS; - - -/* AAC decoder (opaque toward userland) struct declaration */ -struct AAC_DECODER_INSTANCE { - INT aacChannels; /*!< Amount of AAC decoder channels allocated. */ - INT ascChannels; /*!< Amount of AAC decoder channels signalled in ASC. */ - INT blockNumber; /*!< frame counter */ - - INT nrOfLayers; - - INT outputInterleaved; /*!< PCM output format (interleaved/none interleaved). */ - - HANDLE_TRANSPORTDEC hInput; /*!< Transport layer handle. */ - - SamplingRateInfo samplingRateInfo; /*!< Sampling Rate information table */ - - UCHAR frameOK; /*!< Will be unset if a consistency check, e.g. CRC etc. fails */ - - UINT flags; /*!< Flags for internal decoder use. DO NOT USE self::streaminfo::flags ! */ - - MP4_ELEMENT_ID elements[7]; /*!< Table where the element Id's are listed */ - UCHAR elTags[7]; /*!< Table where the elements id Tags are listed */ - UCHAR chMapping[(6)]; /*!< Table of MPEG canonical order to bitstream channel order mapping. */ - - AUDIO_CHANNEL_TYPE channelType[(6)]; /*!< Audio channel type of each output audio channel (from 0 upto numChannels). */ - UCHAR channelIndices[(6)]; /*!< Audio channel index for each output audio channel (from 0 upto numChannels). */ - /* See ISO/IEC 13818-7:2005(E), 8.5.3.2 Explicit channel mapping using a program_config_element() */ - - - const UCHAR (*channelOutputMapping)[8]; /*!< Table for MPEG canonical order to output channel order mapping. */ - - - CProgramConfig pce; - CStreamInfo streamInfo; /*!< pointer to StreamInfo data (read from the bitstream) */ - CAacDecoderChannelInfo *pAacDecoderChannelInfo[(6)]; /*!< Temporal channel memory */ - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[(6)]; /*!< Persistent channel memory */ - - CAacDecoderCommonData aacCommonData; /*!< Temporal shared data for all channels hooked into pAacDecoderChannelInfo */ - - CConcealParams concealCommonData; - INT concealChannels; - - - HANDLE_SBRDECODER hSbrDecoder; /*!< SBR decoder handle. */ - UCHAR sbrEnabled; /*!< flag to store if SBR has been detected */ - UCHAR sbrEnabledPrev; /*!< flag to store if SBR has been detected from previous frame */ - UCHAR psPossible; /*!< flag to store if PS is possible */ - SBR_PARAMS sbrParams; /*!< struct to store all sbr parameters */ - - QMF_MODE qmfModeCurr; /*!< The current QMF mode */ - QMF_MODE qmfModeUser; /*!< The QMF mode requested by the library user */ - - HANDLE_AAC_DRC hDrcInfo; /*!< handle to DRC data structure */ - - - CAncData ancData; /*!< structure to handle ancillary data */ - - HANDLE_PCM_DOWNMIX hPcmUtils; /*!< privat data for the PCM utils. */ - -}; - - -#define AAC_DEBUG_EXTHLP "\ ---- AAC-Core ---\n\ - 0x00010000 Header data\n\ - 0x00020000 CRC data\n\ - 0x00040000 Channel info\n\ - 0x00080000 Section data\n\ - 0x00100000 Scalefactor data\n\ - 0x00200000 Pulse data\n\ - 0x00400000 Tns data\n\ - 0x00800000 Quantized spectrum\n\ - 0x01000000 Requantized spectrum\n\ - 0x02000000 Time output\n\ - 0x04000000 Fatal errors\n\ - 0x08000000 Buffer fullness\n\ - 0x10000000 Average bitrate\n\ - 0x20000000 Synchronization\n\ - 0x40000000 Concealment\n\ - 0x7FFF0000 all AAC-Core-Info\n\ -" - -/** - * \brief Synchronise QMF mode for all modules using QMF data. - * \param self decoder handle - */ -void CAacDecoder_SyncQmfMode(HANDLE_AACDECODER self); - -/** - * \brief Signal a bit stream interruption to the decoder - * \param self decoder handle - */ -void CAacDecoder_SignalInterruption(HANDLE_AACDECODER self); - -/*! - \brief Initialize ancillary buffer - - \ancData Pointer to ancillary data structure - \buffer Pointer to (external) anc data buffer - \size Size of the buffer pointed on by buffer - - \return Error code -*/ -AAC_DECODER_ERROR CAacDecoder_AncDataInit(CAncData *ancData, unsigned char *buffer, int size); - -/*! - \brief Get one ancillary data element - - \ancData Pointer to ancillary data structure - \index Index of the anc data element to get - \ptr Pointer to a buffer receiving a pointer to the requested anc data element - \size Pointer to a buffer receiving the length of the requested anc data element - - \return Error code -*/ -AAC_DECODER_ERROR CAacDecoder_AncDataGet(CAncData *ancData, int index, unsigned char **ptr, int *size); - - -/* initialization of aac decoder */ -LINKSPEC_H HANDLE_AACDECODER CAacDecoder_Open(TRANSPORT_TYPE bsFormat); - -/* Initialization of stream-info elements */ -LINKSPEC_H AAC_DECODER_ERROR CAacDecoder_Init(HANDLE_AACDECODER self, - const CSAudioSpecificConfig *asc); - -/*! - \brief Decodes one aac frame - - The function decodes one aac frame. The decoding of coupling channel - elements are not supported. The transport layer might signal, that the - data of the current frame is invalid, e.g. as a result of a packet - loss in streaming mode. - The bitstream position of transportDec_GetBitstream(self->hInput) must - be exactly the end of the access unit, including all byte alignment bits. - For this purpose, the variable auStartAnchor is used. - - \return error status -*/ -LINKSPEC_H AAC_DECODER_ERROR CAacDecoder_DecodeFrame( - HANDLE_AACDECODER self, - const UINT flags, - INT_PCM *pTimeData, - const INT timeDataSize, - const INT interleaved - ); - -/* Destroy aac decoder */ -LINKSPEC_H void CAacDecoder_Close ( HANDLE_AACDECODER self ); - -/* get streaminfo handle from decoder */ -LINKSPEC_H CStreamInfo* CAacDecoder_GetStreamInfo ( HANDLE_AACDECODER self ); - - -#endif /* #ifndef AACDECODER_H */ diff --git a/libAACdec/src/aacdecoder_lib.cpp b/libAACdec/src/aacdecoder_lib.cpp deleted file mode 100644 index ec8f41e..0000000 --- a/libAACdec/src/aacdecoder_lib.cpp +++ /dev/null @@ -1,1003 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Manuel Jander - Description: - -******************************************************************************/ - -#include "aacdecoder_lib.h" - -#include "aac_ram.h" -#include "aacdecoder.h" -#include "tpdec_lib.h" -#include "FDK_core.h" /* FDK_tools version info */ - - - #include "sbrdecoder.h" - - - - -#include "conceal.h" - - #include "aacdec_drc.h" - - - -/* Decoder library info */ -#define AACDECODER_LIB_VL0 2 -#define AACDECODER_LIB_VL1 5 -#define AACDECODER_LIB_VL2 5 -#define AACDECODER_LIB_TITLE "AAC Decoder Lib" -#define AACDECODER_LIB_BUILD_DATE __DATE__ -#define AACDECODER_LIB_BUILD_TIME __TIME__ - -static AAC_DECODER_ERROR -setConcealMethod ( const HANDLE_AACDECODER self, - const INT method ); - - -LINKSPEC_CPP AAC_DECODER_ERROR aacDecoder_GetFreeBytes ( const HANDLE_AACDECODER self, UINT *pFreeBytes){ - - /* reset free bytes */ - *pFreeBytes = 0; - - /* check handle */ - if(!self) - return AAC_DEC_INVALID_HANDLE; - - /* return nr of free bytes */ - HANDLE_FDK_BITSTREAM hBs = transportDec_GetBitstream(self->hInput, 0); - *pFreeBytes = FDKgetFreeBits(hBs) >> 3; - - /* success */ - return AAC_DEC_OK; -} - -/** - * Config Decoder using a CSAudioSpecificConfig struct. - */ -static -LINKSPEC_CPP AAC_DECODER_ERROR aacDecoder_Config(HANDLE_AACDECODER self, const CSAudioSpecificConfig *pAscStruct) -{ - AAC_DECODER_ERROR err; - - /* Initialize AAC core decoder, and update self->streaminfo */ - err = CAacDecoder_Init(self, pAscStruct); - - return err; -} - -LINKSPEC_CPP AAC_DECODER_ERROR aacDecoder_ConfigRaw ( - HANDLE_AACDECODER self, - UCHAR *conf[], - const UINT length[] ) -{ - AAC_DECODER_ERROR err = AAC_DEC_OK; - TRANSPORTDEC_ERROR errTp; - UINT layer, nrOfLayers = self->nrOfLayers; - - for(layer = 0; layer < nrOfLayers; layer++){ - if(length[layer] > 0){ - errTp = transportDec_OutOfBandConfig(self->hInput, conf[layer], length[layer], layer); - if (errTp != TRANSPORTDEC_OK) { - switch (errTp) { - case TRANSPORTDEC_NEED_TO_RESTART: - err = AAC_DEC_NEED_TO_RESTART; - break; - case TRANSPORTDEC_UNSUPPORTED_FORMAT: - err = AAC_DEC_UNSUPPORTED_FORMAT; - break; - default: - err = AAC_DEC_UNKNOWN; - break; - } - /* if baselayer is OK we continue decoding */ - if(layer >= 1){ - self->nrOfLayers = layer; - } - break; - } - } - } - - return err; -} - - - -static INT aacDecoder_ConfigCallback(void *handle, const CSAudioSpecificConfig *pAscStruct) -{ - HANDLE_AACDECODER self = (HANDLE_AACDECODER)handle; - AAC_DECODER_ERROR err = AAC_DEC_OK; - TRANSPORTDEC_ERROR errTp; - - { - { - err = aacDecoder_Config(self, pAscStruct); - } - } - if (err == AAC_DEC_OK) { - if ( self->flags & (AC_USAC|AC_RSVD50|AC_LD|AC_ELD) - && CConcealment_GetDelay(&self->concealCommonData) > 0 ) - { - /* Revert to error concealment method Noise Substitution. - Because interpolation is not implemented for USAC/RSVD50 or - the additional delay is unwanted for low delay codecs. */ - setConcealMethod(self, 1); -#ifdef DEBUG - FDKprintf(" Concealment method was reverted to 1 !\n"); -#endif - } - errTp = TRANSPORTDEC_OK; - } else { - if (IS_INIT_ERROR(err)) { - errTp = TRANSPORTDEC_UNSUPPORTED_FORMAT; - } /* Fatal errors */ - else if (err == AAC_DEC_NEED_TO_RESTART) { - errTp = TRANSPORTDEC_NEED_TO_RESTART; - } else { - errTp = TRANSPORTDEC_UNKOWN_ERROR; - } - } - - return errTp; -} - - - -LINKSPEC_CPP AAC_DECODER_ERROR -aacDecoder_AncDataInit ( HANDLE_AACDECODER self, - UCHAR *buffer, - int size ) -{ - CAncData *ancData = &self->ancData; - - return CAacDecoder_AncDataInit(ancData, buffer, size); -} - - -LINKSPEC_CPP AAC_DECODER_ERROR -aacDecoder_AncDataGet ( HANDLE_AACDECODER self, - int index, - UCHAR **ptr, - int *size ) -{ - CAncData *ancData = &self->ancData; - - return CAacDecoder_AncDataGet(ancData, index, ptr, size); -} - - -static AAC_DECODER_ERROR -setConcealMethod ( const HANDLE_AACDECODER self, /*!< Handle of the decoder instance */ - const INT method ) -{ - AAC_DECODER_ERROR errorStatus = AAC_DEC_OK; - CConcealParams *pConcealData = NULL; - HANDLE_SBRDECODER hSbrDec = NULL; - HANDLE_AAC_DRC hDrcInfo = NULL; - HANDLE_PCM_DOWNMIX hPcmDmx = NULL; - CConcealmentMethod backupMethod = ConcealMethodNone; - int backupDelay = 0; - int bsDelay = 0; - - /* check decoder handle */ - if (self != NULL) { - pConcealData = &self->concealCommonData; - hSbrDec = self->hSbrDecoder; - hDrcInfo = self->hDrcInfo; - hPcmDmx = self->hPcmUtils; - } - - - /* Get current method/delay */ - backupMethod = CConcealment_GetMethod(pConcealData); - backupDelay = CConcealment_GetDelay(pConcealData); - - /* Be sure to set AAC and SBR concealment method simultaneously! */ - errorStatus = - CConcealment_SetParams( - pConcealData, - (int)method, // concealMethod - AACDEC_CONCEAL_PARAM_NOT_SPECIFIED, // concealFadeOutSlope - AACDEC_CONCEAL_PARAM_NOT_SPECIFIED, // concealFadeInSlope - AACDEC_CONCEAL_PARAM_NOT_SPECIFIED, // concealMuteRelease - AACDEC_CONCEAL_PARAM_NOT_SPECIFIED // concealComfNoiseLevel - ); - if ( (errorStatus != AAC_DEC_OK) - && (errorStatus != AAC_DEC_INVALID_HANDLE) ) { - goto bail; - } - - /* Get new delay */ - bsDelay = CConcealment_GetDelay(pConcealData); - - { - SBR_ERROR sbrErr = SBRDEC_OK; - - /* set SBR bitstream delay */ - sbrErr = sbrDecoder_SetParam ( - hSbrDec, - SBR_SYSTEM_BITSTREAM_DELAY, - bsDelay - ); - - switch (sbrErr) { - case SBRDEC_OK: - case SBRDEC_NOT_INITIALIZED: - if (self != NULL) { - /* save the param value and set later - (when SBR has been initialized) */ - self->sbrParams.bsDelay = bsDelay; - } - break; - default: - errorStatus = AAC_DEC_SET_PARAM_FAIL; - goto bail; - } - } - - errorStatus = - aacDecoder_drcSetParam ( - hDrcInfo, - DRC_BS_DELAY, - bsDelay - ); - if ( (errorStatus != AAC_DEC_OK) - && (errorStatus != AAC_DEC_INVALID_HANDLE) ) { - goto bail; - } - - if (errorStatus == AAC_DEC_OK) { - PCMDMX_ERROR err = - pcmDmx_SetParam ( - hPcmDmx, - DMX_BS_DATA_DELAY, - bsDelay - ); - switch (err) { - case PCMDMX_INVALID_HANDLE: - errorStatus = AAC_DEC_INVALID_HANDLE; - case PCMDMX_OK: - break; - default: - errorStatus = AAC_DEC_SET_PARAM_FAIL; - goto bail; - } - } - - -bail: - if ( (errorStatus != AAC_DEC_OK) - && (errorStatus != AAC_DEC_INVALID_HANDLE) ) - { - /* Revert to the initial state */ - CConcealment_SetParams ( - pConcealData, - (int)backupMethod, - AACDEC_CONCEAL_PARAM_NOT_SPECIFIED, - AACDEC_CONCEAL_PARAM_NOT_SPECIFIED, - AACDEC_CONCEAL_PARAM_NOT_SPECIFIED, - AACDEC_CONCEAL_PARAM_NOT_SPECIFIED - ); - /* Revert SBR bitstream delay */ - sbrDecoder_SetParam ( - hSbrDec, - SBR_SYSTEM_BITSTREAM_DELAY, - backupDelay - ); - /* Revert DRC bitstream delay */ - aacDecoder_drcSetParam ( - hDrcInfo, - DRC_BS_DELAY, - backupDelay - ); - /* Revert PCM mixdown bitstream delay */ - pcmDmx_SetParam ( - hPcmDmx, - DMX_BS_DATA_DELAY, - backupDelay - ); - } - - return errorStatus; -} - - -LINKSPEC_CPP AAC_DECODER_ERROR -aacDecoder_SetParam ( const HANDLE_AACDECODER self, /*!< Handle of the decoder instance */ - const AACDEC_PARAM param, /*!< Parameter to set */ - const INT value) /*!< Parameter valued */ -{ - AAC_DECODER_ERROR errorStatus = AAC_DEC_OK; - CConcealParams *pConcealData = NULL; - HANDLE_AAC_DRC hDrcInfo = NULL; - HANDLE_PCM_DOWNMIX hPcmDmx = NULL; - - /* check decoder handle */ - if (self != NULL) { - pConcealData = &self->concealCommonData; - hDrcInfo = self->hDrcInfo; - hPcmDmx = self->hPcmUtils; - } else { - errorStatus = AAC_DEC_INVALID_HANDLE; - } - - /* configure the subsystems */ - switch (param) - { - case AAC_PCM_OUTPUT_INTERLEAVED: - if (value < 0 || value > 1) { - return AAC_DEC_SET_PARAM_FAIL; - } - if (self == NULL) { - return AAC_DEC_INVALID_HANDLE; - } - self->outputInterleaved = value; - break; - - case AAC_PCM_OUTPUT_CHANNELS: - if (value < -1 || value > (6)) { - return AAC_DEC_SET_PARAM_FAIL; - } - { - PCMDMX_ERROR err; - - err = pcmDmx_SetParam ( - hPcmDmx, - NUMBER_OF_OUTPUT_CHANNELS, - value ); - - switch (err) { - case PCMDMX_OK: - break; - case PCMDMX_INVALID_HANDLE: - return AAC_DEC_INVALID_HANDLE; - default: - return AAC_DEC_SET_PARAM_FAIL; - } - } - break; - - case AAC_PCM_DUAL_CHANNEL_OUTPUT_MODE: - { - PCMDMX_ERROR err; - - err = pcmDmx_SetParam ( - hPcmDmx, - DUAL_CHANNEL_DOWNMIX_MODE, - value ); - - switch (err) { - case PCMDMX_OK: - break; - case PCMDMX_INVALID_HANDLE: - return AAC_DEC_INVALID_HANDLE; - default: - return AAC_DEC_SET_PARAM_FAIL; - } - } - break; - - case AAC_PCM_OUTPUT_CHANNEL_MAPPING: - switch (value) { - case 0: - if (self != NULL) { - self->channelOutputMapping = channelMappingTablePassthrough; - } - break; - case 1: - if (self != NULL) { - self->channelOutputMapping = channelMappingTableWAV; - } - break; - default: - errorStatus = AAC_DEC_SET_PARAM_FAIL; - break; - } - break; - - - case AAC_QMF_LOWPOWER: - if (value < -1 || value > 1) { - return AAC_DEC_SET_PARAM_FAIL; - } - if (self == NULL) { - return AAC_DEC_INVALID_HANDLE; - } - - /** - * Set QMF mode (might be overriden) - * 0:HQ (complex) - * 1:LP (partially complex) - */ - self->qmfModeUser = (QMF_MODE)value; - break; - - - case AAC_DRC_ATTENUATION_FACTOR: - /* DRC compression factor (where 0 is no and 127 is max compression) */ - errorStatus = - aacDecoder_drcSetParam ( - hDrcInfo, - DRC_CUT_SCALE, - value - ); - break; - - case AAC_DRC_BOOST_FACTOR: - /* DRC boost factor (where 0 is no and 127 is max boost) */ - errorStatus = - aacDecoder_drcSetParam ( - hDrcInfo, - DRC_BOOST_SCALE, - value - ); - break; - - case AAC_DRC_REFERENCE_LEVEL: - /* DRC reference level quantized in 0.25dB steps using values [0..127] it is '-' for analog scaling */ - errorStatus = - aacDecoder_drcSetParam ( - hDrcInfo, - TARGET_REF_LEVEL, - value - ); - break; - - case AAC_DRC_HEAVY_COMPRESSION: - /* Don't need to overwrite cut/boost values */ - errorStatus = - aacDecoder_drcSetParam ( - hDrcInfo, - APPLY_HEAVY_COMPRESSION, - value - ); - break; - - - case AAC_TPDEC_CLEAR_BUFFER: - transportDec_SetParam(self->hInput, TPDEC_PARAM_RESET, 1); - self->streamInfo.numLostAccessUnits = 0; - self->streamInfo.numBadBytes = 0; - self->streamInfo.numTotalBytes = 0; - /* aacDecoder_SignalInterruption(self); */ - break; - - case AAC_CONCEAL_METHOD: - /* Changing the concealment method can introduce additional bitstream delay. And - that in turn affects sub libraries and modules which makes the whole thing quite - complex. So the complete changing routine is packed into a helper function which - keeps all modules and libs in a consistent state even in the case an error occures. */ - errorStatus = setConcealMethod ( self, value ); - break; - - default: - return AAC_DEC_SET_PARAM_FAIL; - } /* switch(param) */ - - return (errorStatus); -} - - -LINKSPEC_CPP HANDLE_AACDECODER aacDecoder_Open(TRANSPORT_TYPE transportFmt, UINT nrOfLayers) -{ - AAC_DECODER_INSTANCE *aacDec = NULL; - HANDLE_TRANSPORTDEC pIn; - int err = 0; - - /* Allocate transport layer struct. */ - pIn = transportDec_Open(transportFmt, TP_FLAG_MPEG4); - if (pIn == NULL) { - return NULL; - } - - transportDec_SetParam(pIn, TPDEC_PARAM_IGNORE_BUFFERFULLNESS, 1); - - /* Allocate AAC decoder core struct. */ - aacDec = CAacDecoder_Open(transportFmt); - - if (aacDec == NULL) { - transportDec_Close(&pIn); - goto bail; - } - aacDec->hInput = pIn; - - aacDec->nrOfLayers = nrOfLayers; - - aacDec->channelOutputMapping = channelMappingTableWAV; - - /* Register Config Update callback. */ - transportDec_RegisterAscCallback(pIn, aacDecoder_ConfigCallback, (void*)aacDec); - - /* open SBR decoder */ - if ( SBRDEC_OK != sbrDecoder_Open ( &aacDec->hSbrDecoder )) { - err = -1; - goto bail; - } - aacDec->qmfModeUser = NOT_DEFINED; - transportDec_RegisterSbrCallback(aacDec->hInput, (cbSbr_t)sbrDecoder_Header, (void*)aacDec->hSbrDecoder); - - - pcmDmx_Open( &aacDec->hPcmUtils ); - if (aacDec->hPcmUtils == NULL) { - err = -1; - goto bail; - } - - - - /* Assure that all modules have same delay */ - if ( setConcealMethod(aacDec, CConcealment_GetMethod(&aacDec->concealCommonData)) ) { - err = -1; - goto bail; - } - -bail: - if (err == -1) { - aacDecoder_Close(aacDec); - aacDec = NULL; - } - return aacDec; -} - -LINKSPEC_CPP AAC_DECODER_ERROR aacDecoder_Fill( - HANDLE_AACDECODER self, - UCHAR *pBuffer[], - const UINT bufferSize[], - UINT *pBytesValid - ) -{ - TRANSPORTDEC_ERROR tpErr; - /* loop counter for layers; if not TT_MP4_RAWPACKETS used as index for only - available layer */ - INT layer = 0; - INT nrOfLayers = self->nrOfLayers; - - { - for (layer = 0; layer < nrOfLayers; layer++){ - { - tpErr = transportDec_FillData( self->hInput, pBuffer[layer], bufferSize[layer], &pBytesValid[layer], layer ); - if (tpErr != TRANSPORTDEC_OK) { - return AAC_DEC_UNKNOWN; /* Must be an internal error */ - } - } - } - } - - return AAC_DEC_OK; -} - - -static void aacDecoder_SignalInterruption(HANDLE_AACDECODER self) -{ - CAacDecoder_SignalInterruption(self); - - if ( self->hSbrDecoder != NULL ) { - sbrDecoder_SetParam(self->hSbrDecoder, SBR_BS_INTERRUPTION, 0); - } -} - -static void aacDecoder_UpdateBitStreamCounters(CStreamInfo *pSi, HANDLE_FDK_BITSTREAM hBs, int nBits, AAC_DECODER_ERROR ErrorStatus) -{ - /* calculate bit difference (amount of bits moved forward) */ - nBits = nBits - FDKgetValidBits(hBs); - - /* Note: The amount of bits consumed might become negative when parsing a - bit stream with several sub frames, and we find out at the last sub frame - that the total frame length does not match the sum of sub frame length. - If this happens, the transport decoder might want to rewind to the supposed - ending of the transport frame, and this position might be before the last - access unit beginning. */ - - /* Calc bitrate. */ - if (pSi->frameSize > 0) { - pSi->bitRate = (nBits * pSi->sampleRate)/pSi->frameSize; - } - - /* bit/byte counters */ - { - int nBytes; - - nBytes = nBits>>3; - pSi->numTotalBytes += nBytes; - if (IS_OUTPUT_VALID(ErrorStatus)) { - pSi->numTotalAccessUnits++; - } - if (IS_DECODE_ERROR(ErrorStatus)) { - pSi->numBadBytes += nBytes; - pSi->numBadAccessUnits++; - } - } -} - -static INT aacDecoder_EstimateNumberOfLostFrames(HANDLE_AACDECODER self) -{ - INT n; - - transportDec_GetMissingAccessUnitCount( &n, self->hInput); - - return n; -} - -LINKSPEC_CPP AAC_DECODER_ERROR aacDecoder_DecodeFrame( - HANDLE_AACDECODER self, - INT_PCM *pTimeData, - const INT timeDataSize, - const UINT flags) -{ - AAC_DECODER_ERROR ErrorStatus; - INT layer; - INT nBits; - INT interleaved = self->outputInterleaved; - HANDLE_FDK_BITSTREAM hBs; - int fTpInterruption = 0; /* Transport originated interruption detection. */ - int fTpConceal = 0; /* Transport originated concealment. */ - - - if (self == NULL) { - return AAC_DEC_INVALID_HANDLE; - } - - if (flags & AACDEC_INTR) { - self->streamInfo.numLostAccessUnits = 0; - } - - hBs = transportDec_GetBitstream(self->hInput, 0); - - /* Get current bits position for bitrate calculation. */ - nBits = FDKgetValidBits(hBs); - if (! (flags & (AACDEC_CONCEAL | AACDEC_FLUSH) ) ) - { - TRANSPORTDEC_ERROR err; - - for(layer = 0; layer < self->nrOfLayers; layer++) - { - err = transportDec_ReadAccessUnit(self->hInput, layer); - if (err != TRANSPORTDEC_OK) { - switch (err) { - case TRANSPORTDEC_NOT_ENOUGH_BITS: - ErrorStatus = AAC_DEC_NOT_ENOUGH_BITS; - goto bail; - case TRANSPORTDEC_SYNC_ERROR: - self->streamInfo.numLostAccessUnits = aacDecoder_EstimateNumberOfLostFrames(self); - fTpInterruption = 1; - break; - case TRANSPORTDEC_NEED_TO_RESTART: - ErrorStatus = AAC_DEC_NEED_TO_RESTART; - goto bail; - case TRANSPORTDEC_CRC_ERROR: - fTpConceal = 1; - break; - default: - ErrorStatus = AAC_DEC_UNKNOWN; - goto bail; - } - } - } - } else { - if (self->streamInfo.numLostAccessUnits > 0) { - self->streamInfo.numLostAccessUnits--; - } - } - - /* Signal bit stream interruption to other modules if required. */ - if ( fTpInterruption || (flags & (AACDEC_INTR|AACDEC_CLRHIST)) ) - { - aacDecoder_SignalInterruption(self); - if ( ! (flags & AACDEC_INTR) ) { - ErrorStatus = AAC_DEC_TRANSPORT_SYNC_ERROR; - goto bail; - } - } - - /* Empty bit buffer in case of flush request. */ - if (flags & AACDEC_FLUSH) - { - transportDec_SetParam(self->hInput, TPDEC_PARAM_RESET, 1); - self->streamInfo.numLostAccessUnits = 0; - self->streamInfo.numBadBytes = 0; - self->streamInfo.numTotalBytes = 0; - } - - - ErrorStatus = CAacDecoder_DecodeFrame(self, - flags | (fTpConceal ? AACDEC_CONCEAL : 0), - pTimeData, - timeDataSize, - interleaved); - - if (!(flags & (AACDEC_CONCEAL|AACDEC_FLUSH))) { - TRANSPORTDEC_ERROR tpErr; - tpErr = transportDec_EndAccessUnit(self->hInput); - if (tpErr != TRANSPORTDEC_OK) { - self->frameOK = 0; - } - } - - /* If the current pTimeData does not contain a valid signal, there nothing else we can do, so bail. */ - if ( ! IS_OUTPUT_VALID(ErrorStatus) ) { - goto bail; - } - - { - /* Export data into streaminfo structure */ - self->streamInfo.sampleRate = self->streamInfo.aacSampleRate; - self->streamInfo.frameSize = self->streamInfo.aacSamplesPerFrame; - } - self->streamInfo.numChannels = self->streamInfo.aacNumChannels; - - - - CAacDecoder_SyncQmfMode(self); - -/* sbr decoder */ - - if (ErrorStatus || (flags & AACDEC_CONCEAL) || self->pAacDecoderStaticChannelInfo[0]->concealmentInfo.concealState > ConcealState_FadeIn) - { - self->frameOK = 0; /* if an error has occured do concealment in the SBR decoder too */ - } - - if (self->sbrEnabled) - { - SBR_ERROR sbrError = SBRDEC_OK; - - /* set params */ - sbrDecoder_SetParam ( self->hSbrDecoder, - SBR_SYSTEM_BITSTREAM_DELAY, - self->sbrParams.bsDelay); - - if ( self->streamInfo.aot == AOT_ER_AAC_ELD ) { - /* Configure QMF */ - sbrDecoder_SetParam ( self->hSbrDecoder, - SBR_LD_QMF_TIME_ALIGN, - (self->flags & AC_LD_MPS) ? 1 : 0 ); - } - - - - - /* apply SBR processing */ - sbrError = sbrDecoder_Apply ( self->hSbrDecoder, - pTimeData, - &self->streamInfo.numChannels, - &self->streamInfo.sampleRate, - self->channelOutputMapping[self->streamInfo.numChannels-1], - interleaved, - self->frameOK, - &self->psPossible); - - - if (sbrError == SBRDEC_OK) { - - /* Update data in streaminfo structure. Assume that the SBR upsampling factor is either 1 or 2 */ - self->flags |= AC_SBR_PRESENT; - if (self->streamInfo.aacSampleRate != self->streamInfo.sampleRate) { - if (self->streamInfo.frameSize == 768) { - self->streamInfo.frameSize = (self->streamInfo.aacSamplesPerFrame * 8) / 3; - } else { - self->streamInfo.frameSize = self->streamInfo.aacSamplesPerFrame << 1; - } - } - - if (self->psPossible) { - self->flags |= AC_PS_PRESENT; - self->channelType[0] = ACT_FRONT; - self->channelType[1] = ACT_FRONT; - self->channelIndices[0] = 0; - self->channelIndices[1] = 1; - } else { - self->flags &= ~AC_PS_PRESENT; - } - } - } - - - if ( flags & (AACDEC_INTR | AACDEC_CLRHIST) ) { - /* delete data from the past (e.g. mixdown coeficients) */ - pcmDmx_Reset( self->hPcmUtils, PCMDMX_RESET_BS_DATA ); - } - /* do PCM post processing */ - pcmDmx_ApplyFrame ( - self->hPcmUtils, - pTimeData, - self->streamInfo.frameSize, - &self->streamInfo.numChannels, - interleaved, - self->channelType, - self->channelIndices, - self->channelOutputMapping - ); - - - - /* Signal interruption to take effect in next frame. */ - if ( flags & AACDEC_FLUSH ) { - aacDecoder_SignalInterruption(self); - } - - /* Update externally visible copy of flags */ - self->streamInfo.flags = self->flags; - -bail: - - /* Update Statistics */ - aacDecoder_UpdateBitStreamCounters(&self->streamInfo, hBs, nBits, ErrorStatus); - - return ErrorStatus; -} - -LINKSPEC_CPP void aacDecoder_Close ( HANDLE_AACDECODER self ) -{ - if (self == NULL) - return; - - - - if (self->hPcmUtils != NULL) { - pcmDmx_Close( &self->hPcmUtils ); - } - - - - if (self->hSbrDecoder != NULL) { - sbrDecoder_Close(&self->hSbrDecoder); - } - - if (self->hInput != NULL) { - transportDec_Close(&self->hInput); - } - - CAacDecoder_Close(self); -} - - -LINKSPEC_CPP CStreamInfo* aacDecoder_GetStreamInfo ( HANDLE_AACDECODER self ) -{ - return CAacDecoder_GetStreamInfo(self); -} - -LINKSPEC_CPP INT aacDecoder_GetLibInfo ( LIB_INFO *info ) -{ - int i; - - if (info == NULL) { - return -1; - } - - sbrDecoder_GetLibInfo( info ); - transportDec_GetLibInfo( info ); - FDK_toolsGetLibInfo( info ); - pcmDmx_GetLibInfo( info ); - - /* search for next free tab */ - for (i = 0; i < FDK_MODULE_LAST; i++) { - if (info[i].module_id == FDK_NONE) break; - } - if (i == FDK_MODULE_LAST) { - return -1; - } - info += i; - - info->module_id = FDK_AACDEC; - /* build own library info */ - info->version = LIB_VERSION(AACDECODER_LIB_VL0, AACDECODER_LIB_VL1, AACDECODER_LIB_VL2); - LIB_VERSION_STRING(info); - info->build_date = AACDECODER_LIB_BUILD_DATE; - info->build_time = AACDECODER_LIB_BUILD_TIME; - info->title = AACDECODER_LIB_TITLE; - - /* Set flags */ - info->flags = 0 - | CAPF_AAC_LC - | CAPF_AAC_VCB11 - | CAPF_AAC_HCR - | CAPF_AAC_RVLC - | CAPF_ER_AAC_LD - | CAPF_ER_AAC_ELD - | CAPF_AAC_CONCEALMENT - | CAPF_AAC_DRC - - | CAPF_AAC_MPEG4 - - - | CAPF_AAC_1024 - | CAPF_AAC_960 - - | CAPF_AAC_512 - - | CAPF_AAC_480 - - ; - /* End of flags */ - - return 0; -} - - - - diff --git a/libAACdec/src/arm/block_arm.cpp b/libAACdec/src/arm/block_arm.cpp deleted file mode 100644 index fbc1bf3..0000000 --- a/libAACdec/src/arm/block_arm.cpp +++ /dev/null @@ -1,140 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - - -/******************************** Fraunhofer IIS *************************** - - Author(s): Arthur Tritthart - Description: (ARM optimised) Scaling of spectral data - -******************************************************************************/ - - -#define FUNCTION_CBlock_ScaleSpectralData_func1 - -/* Note: This loop is only separated for ARM in order to save cycles - by loop unrolling. The ARM core provides by default a 5-cycle - loop overhead per sample, that goes down to 1-cycle per sample - with an optimal 4x-loop construct (do - 4x - while). -*/ - -FDK_INLINE static void CBlock_ScaleSpectralData_func1( - FIXP_DBL *pSpectrum, - int max_band, - const SHORT * RESTRICT BandOffsets, - int SpecScale_window, - const SHORT * RESTRICT pSfbScale, - int window) -{ - int band_offset = 0; - for (int band=0; band < max_band; band++) - { - int runs = band_offset; - band_offset = BandOffsets[band+1]; - runs = band_offset - runs; /* is always a multiple of 4 */ - int scale = SpecScale_window-pSfbScale[window*16+band]; - if (scale) - { - do - { - FIXP_DBL tmp0, tmp1, tmp2, tmp3; - tmp0 = pSpectrum[0]; - tmp1 = pSpectrum[1]; - tmp2 = pSpectrum[2]; - tmp3 = pSpectrum[3]; - tmp0 >>= scale; - tmp1 >>= scale; - tmp2 >>= scale; - tmp3 >>= scale; - *pSpectrum++ = tmp0; - *pSpectrum++ = tmp1; - *pSpectrum++ = tmp2; - *pSpectrum++ = tmp3; - } while ((runs = runs-4) != 0); - } - else - { - pSpectrum+= runs; - } - } -} diff --git a/libAACdec/src/block.cpp b/libAACdec/src/block.cpp deleted file mode 100644 index 9d703cc..0000000 --- a/libAACdec/src/block.cpp +++ /dev/null @@ -1,759 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - Description: long/short-block decoding - -******************************************************************************/ - -#include "block.h" - -#include "aac_rom.h" -#include "FDK_bitstream.h" -#include "FDK_tools_rom.h" - - - - -#include "aacdec_hcr.h" -#include "rvlc.h" - - -#if defined(__arm__) -#include "arm/block_arm.cpp" -#endif - -/*! - \brief Read escape sequence of codeword - - The function reads the escape sequence from the bitstream, - if the absolute value of the quantized coefficient has the - value 16. - - \return quantized coefficient -*/ -LONG CBlock_GetEscape(HANDLE_FDK_BITSTREAM bs, /*!< pointer to bitstream */ - const LONG q) /*!< quantized coefficient */ -{ - LONG i, off, neg ; - - if (q < 0) - { - if (q != -16) return q; - neg = 1; - } - else - { - if (q != +16) return q; - neg = 0; - } - - for (i=4; ; i++) - { - if (FDKreadBits(bs,1) == 0) - break; - } - - if (i > 16) - { - if (i - 16 > CACHE_BITS) { /* cannot read more than "CACHE_BITS" bits at once in the function FDKreadBits() */ - return (MAX_QUANTIZED_VALUE + 1); /* returning invalid value that will be captured later */ - } - - off = FDKreadBits(bs,i-16) << 16; - off |= FDKreadBits(bs,16); - } - else - { - off = FDKreadBits(bs,i); - } - - i = off + (1 << i); - - if (neg) i = -i; - - return i; -} - -AAC_DECODER_ERROR CBlock_ReadScaleFactorData( - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - HANDLE_FDK_BITSTREAM bs, - UINT flags - ) -{ - int temp; - int band; - int group; - int position = 0; /* accu for intensity delta coding */ - int factor = pAacDecoderChannelInfo->pDynData->RawDataInfo.GlobalGain; /* accu for scale factor delta coding */ - UCHAR *pCodeBook = pAacDecoderChannelInfo->pDynData->aCodeBook; - SHORT *pScaleFactor = pAacDecoderChannelInfo->pDynData->aScaleFactor; - const CodeBookDescription *hcb =&AACcodeBookDescriptionTable[BOOKSCL]; - - int ScaleFactorBandsTransmitted = GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo->icsInfo); - for (group=0; group < GetWindowGroups(&pAacDecoderChannelInfo->icsInfo); group++) - { - for (band=0; band < ScaleFactorBandsTransmitted; band++) - { - switch (pCodeBook[group*16+band]) { - - case ZERO_HCB: /* zero book */ - pScaleFactor[group*16+band] = 0; - break; - - default: /* decode scale factor */ - { - temp = CBlock_DecodeHuffmanWord(bs,hcb); - factor += temp - 60; /* MIDFAC 1.5 dB */ - } - pScaleFactor[group*16+band] = factor - 100; - break; - - case INTENSITY_HCB: /* intensity steering */ - case INTENSITY_HCB2: - temp = CBlock_DecodeHuffmanWord(bs,hcb); - position += temp - 60; - pScaleFactor[group*16+band] = position - 100; - break; - - case NOISE_HCB: /* PNS */ - if (flags & (AC_MPS_RES|AC_USAC|AC_RSVD50)) { - return AAC_DEC_PARSE_ERROR; - } - CPns_Read( &pAacDecoderChannelInfo->data.aac.PnsData, bs, hcb, pAacDecoderChannelInfo->pDynData->aScaleFactor, pAacDecoderChannelInfo->pDynData->RawDataInfo.GlobalGain, band, group); - break; - } - } - } - - return AAC_DEC_OK; -} - -void CBlock_ScaleSpectralData(CAacDecoderChannelInfo *pAacDecoderChannelInfo, SamplingRateInfo *pSamplingRateInfo) -{ - int band; - int window; - const SHORT * RESTRICT pSfbScale = pAacDecoderChannelInfo->pDynData->aSfbScale; - SHORT * RESTRICT pSpecScale = pAacDecoderChannelInfo->specScale; - int groupwin,group; - const SHORT * RESTRICT BandOffsets = GetScaleFactorBandOffsets(&pAacDecoderChannelInfo->icsInfo, pSamplingRateInfo); - SPECTRAL_PTR RESTRICT pSpectralCoefficient = pAacDecoderChannelInfo->pSpectralCoefficient; - - - FDKmemclear(pSpecScale, 8*sizeof(SHORT)); - - int max_band = GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo->icsInfo); - for (window=0, group=0; group < GetWindowGroups(&pAacDecoderChannelInfo->icsInfo); group++) - { - for (groupwin=0; groupwin < GetWindowGroupLength(&pAacDecoderChannelInfo->icsInfo,group); groupwin++, window++) - { - int SpecScale_window = pSpecScale[window]; - FIXP_DBL *pSpectrum = SPEC(pSpectralCoefficient, window, pAacDecoderChannelInfo->granuleLength); - - /* find scaling for current window */ - for (band=0; band < max_band; band++) - { - SpecScale_window = fMax(SpecScale_window, (int)pSfbScale[window*16+band]); - } - - if (pAacDecoderChannelInfo->pDynData->TnsData.Active) { - SpecScale_window += TNS_SCALE; - } - - /* store scaling of current window */ - pSpecScale[window] = SpecScale_window; - -#ifdef FUNCTION_CBlock_ScaleSpectralData_func1 - - CBlock_ScaleSpectralData_func1(pSpectrum, max_band, BandOffsets, SpecScale_window, pSfbScale, window); - -#else /* FUNCTION_CBlock_ScaleSpectralData_func1 */ - for (band=0; band < max_band; band++) - { - int scale = SpecScale_window - pSfbScale[window*16+band]; - if (scale) - { - /* following relation can be used for optimizations: (BandOffsets[i]%4) == 0 for all i */ - int max_index = BandOffsets[band+1]; - for (int index = BandOffsets[band]; index < max_index; index++) - { - pSpectrum[index] >>= scale; - } - } - } -#endif /* FUNCTION_CBlock_ScaleSpectralData_func1 */ - } - } - -} - -AAC_DECODER_ERROR CBlock_ReadSectionData(HANDLE_FDK_BITSTREAM bs, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - const SamplingRateInfo *pSamplingRateInfo, - const UINT flags) -{ - int top, band; - int sect_len, sect_len_incr; - int group; - UCHAR sect_cb; - UCHAR *pCodeBook = pAacDecoderChannelInfo->pDynData->aCodeBook; - /* HCR input (long) */ - SHORT *pNumLinesInSec = pAacDecoderChannelInfo->pDynData->specificTo.aac.aNumLineInSec4Hcr; - int numLinesInSecIdx = 0; - UCHAR *pHcrCodeBook = pAacDecoderChannelInfo->pDynData->specificTo.aac.aCodeBooks4Hcr; - const SHORT *BandOffsets = GetScaleFactorBandOffsets(&pAacDecoderChannelInfo->icsInfo, pSamplingRateInfo); - pAacDecoderChannelInfo->pDynData->specificTo.aac.numberSection = 0; - AAC_DECODER_ERROR ErrorStatus = AAC_DEC_OK; - - FDKmemclear(pCodeBook, sizeof(UCHAR)*(8*16)); - - const int nbits = (IsLongBlock(&pAacDecoderChannelInfo->icsInfo) == 1) ? 5 : 3; - - int sect_esc_val = (1 << nbits) - 1 ; - - UCHAR ScaleFactorBandsTransmitted = GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo->icsInfo); - for (group=0; group<GetWindowGroups(&pAacDecoderChannelInfo->icsInfo); group++) - { - for (band=0; band < ScaleFactorBandsTransmitted; ) - { - sect_len = 0; - if ( flags & AC_ER_VCB11 ) { - sect_cb = (UCHAR) FDKreadBits(bs,5); - } - else - sect_cb = (UCHAR) FDKreadBits(bs,4); - - if ( ((flags & AC_ER_VCB11) == 0) || ( sect_cb < 11 ) || ((sect_cb > 11) && (sect_cb < 16)) ) { - sect_len_incr = FDKreadBits(bs, nbits); - while (sect_len_incr == sect_esc_val) - { - sect_len += sect_esc_val; - sect_len_incr = FDKreadBits(bs, nbits); - } - } - else { - sect_len_incr = 1; - } - - sect_len += sect_len_incr; - - - top = band + sect_len; - - if (flags & AC_ER_HCR) { - /* HCR input (long) -- collecting sideinfo (for HCR-_long_ only) */ - pNumLinesInSec[numLinesInSecIdx] = BandOffsets[top] - BandOffsets[band]; - numLinesInSecIdx++; - if (numLinesInSecIdx >= MAX_SFB_HCR) { - return AAC_DEC_PARSE_ERROR; - } - if ( - (sect_cb == BOOKSCL) ) - { - return AAC_DEC_INVALID_CODE_BOOK; - } else { - *pHcrCodeBook++ = sect_cb; - } - pAacDecoderChannelInfo->pDynData->specificTo.aac.numberSection++; - } - - /* Check spectral line limits */ - if (IsLongBlock( &(pAacDecoderChannelInfo->icsInfo) )) - { - if (top > 64) { - return AAC_DEC_DECODE_FRAME_ERROR; - } - } else { /* short block */ - if (top + group*16 > (8 * 16)) { - return AAC_DEC_DECODE_FRAME_ERROR; - } - } - - /* Check if decoded codebook index is feasible */ - if ( (sect_cb == BOOKSCL) - || ( (sect_cb == INTENSITY_HCB || sect_cb == INTENSITY_HCB2) && pAacDecoderChannelInfo->pDynData->RawDataInfo.CommonWindow == 0) - ) - { - return AAC_DEC_INVALID_CODE_BOOK; - } - - /* Store codebook index */ - for (; band < top; band++) - { - pCodeBook[group*16+band] = sect_cb; - } - } - } - - - return ErrorStatus; -} - -/* mso: provides a faster way to i-quantize a whole band in one go */ - -/** - * \brief inverse quantize one sfb. Each value of the sfb is processed according to the - * formula: spectrum[i] = Sign(spectrum[i]) * Matissa(spectrum[i])^(4/3) * 2^(lsb/4). - * \param spectrum pointer to first line of the sfb to be inverse quantized. - * \param noLines number of lines belonging to the sfb. - * \param lsb last 2 bits of the scale factor of the sfb. - * \param scale max allowed shift scale for the sfb. - */ -static -void InverseQuantizeBand( FIXP_DBL * RESTRICT spectrum, - INT noLines, - INT lsb, - INT scale ) -{ - const FIXP_DBL * RESTRICT InverseQuantTabler=(FIXP_DBL *)InverseQuantTable; - const FIXP_DBL * RESTRICT MantissaTabler=(FIXP_DBL *)MantissaTable[lsb]; - const SCHAR* RESTRICT ExponentTabler=(SCHAR*)ExponentTable[lsb]; - - FIXP_DBL *ptr = spectrum; - FIXP_DBL signedValue; - - FDK_ASSERT(noLines>2); - for (INT i=noLines; i--; ) - { - if ((signedValue = *ptr++) != FL2FXCONST_DBL(0)) - { - FIXP_DBL value = fAbs(signedValue); - UINT freeBits = CntLeadingZeros(value); - UINT exponent = 32 - freeBits; - - UINT x = (UINT) (LONG)value << (INT) freeBits; - x <<= 1; /* shift out sign bit to avoid masking later on */ - UINT tableIndex = x >> 24; - x = (x >> 20) & 0x0F; - - UINT r0=(UINT)(LONG)InverseQuantTabler[tableIndex+0]; - UINT r1=(UINT)(LONG)InverseQuantTabler[tableIndex+1]; - UINT temp= (r1 - r0)*x + (r0 << 4); - - value = fMultDiv2((FIXP_DBL)temp, MantissaTabler[exponent]); - - /* + 1 compensates fMultDiv2() */ - scaleValueInPlace(&value, scale + ExponentTabler[exponent] + 1); - - signedValue = (signedValue < (FIXP_DBL)0) ? -value : value; - ptr[-1] = signedValue; - } - } -} - -AAC_DECODER_ERROR CBlock_InverseQuantizeSpectralData(CAacDecoderChannelInfo *pAacDecoderChannelInfo, SamplingRateInfo *pSamplingRateInfo) -{ - int window, group, groupwin, band; - int ScaleFactorBandsTransmitted = GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo->icsInfo); - UCHAR *RESTRICT pCodeBook = pAacDecoderChannelInfo->pDynData->aCodeBook; - SHORT *RESTRICT pSfbScale = pAacDecoderChannelInfo->pDynData->aSfbScale; - SHORT *RESTRICT pScaleFactor = pAacDecoderChannelInfo->pDynData->aScaleFactor; - const SHORT *RESTRICT BandOffsets = GetScaleFactorBandOffsets(&pAacDecoderChannelInfo->icsInfo, pSamplingRateInfo); - - FDKmemclear(pAacDecoderChannelInfo->pDynData->aSfbScale, (8*16)*sizeof(SHORT)); - - for (window=0, group=0; group < GetWindowGroups(&pAacDecoderChannelInfo->icsInfo); group++) - { - for (groupwin=0; groupwin < GetWindowGroupLength(&pAacDecoderChannelInfo->icsInfo,group); groupwin++, window++) - { - /* inverse quantization */ - for (band=0; band < ScaleFactorBandsTransmitted; band++) - { - FIXP_DBL *pSpectralCoefficient = SPEC(pAacDecoderChannelInfo->pSpectralCoefficient, window, pAacDecoderChannelInfo->granuleLength) + BandOffsets[band]; - - int noLines = BandOffsets[band+1] - BandOffsets[band]; - int bnds = group*16+band; - int i; - - if ((pCodeBook[bnds] == ZERO_HCB) - || (pCodeBook[bnds] == INTENSITY_HCB) - || (pCodeBook[bnds] == INTENSITY_HCB2) - ) - continue; - - if (pCodeBook[bnds] == NOISE_HCB) - { - /* Leave headroom for PNS values. + 1 because ceil(log2(2^(0.25*3))) = 1, - worst case of additional headroom required because of the scalefactor. */ - pSfbScale[window*16+band] = (pScaleFactor [bnds] >> 2) + 1 ; - continue; - } - - /* Find max spectral line value of the current sfb */ - FIXP_DBL locMax = (FIXP_DBL)0; - - for (i = noLines; i-- ; ) { - /* Expensive memory access */ - locMax = fMax(fixp_abs(pSpectralCoefficient[i]), locMax); - } - - /* Cheap robustness improvement - Do not remove!!! */ - if (fixp_abs(locMax) > (FIXP_DBL)MAX_QUANTIZED_VALUE) { - return AAC_DEC_DECODE_FRAME_ERROR; - } - - /* - The inverse quantized spectral lines are defined by: - pSpectralCoefficient[i] = Sign(pSpectralCoefficient[i]) * 2^(0.25*pScaleFactor[bnds]) * pSpectralCoefficient[i]^(4/3) - This is equivalent to: - pSpectralCoefficient[i] = Sign(pSpectralCoefficient[i]) * (2^(pScaleFactor[bnds] % 4) * pSpectralCoefficient[i]^(4/3)) - pSpectralCoefficient_e[i] += pScaleFactor[bnds]/4 - */ - { - int msb = pScaleFactor [bnds] >> 2 ; - int lsb = pScaleFactor [bnds] & 0x03 ; - - int scale = GetScaleFromValue(locMax, lsb); - - pSfbScale[window*16+band] = msb - scale; - InverseQuantizeBand(pSpectralCoefficient, noLines, lsb, scale); - } - } - } - } - - - return AAC_DEC_OK; -} - - -AAC_DECODER_ERROR CBlock_ReadSpectralData(HANDLE_FDK_BITSTREAM bs, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - const SamplingRateInfo *pSamplingRateInfo, - const UINT flags) -{ - int i,index; - int window,group,groupwin,groupoffset,band; - UCHAR *RESTRICT pCodeBook = pAacDecoderChannelInfo->pDynData->aCodeBook; - const SHORT *RESTRICT BandOffsets = GetScaleFactorBandOffsets(&pAacDecoderChannelInfo->icsInfo, pSamplingRateInfo); - - SPECTRAL_PTR pSpectralCoefficient = pAacDecoderChannelInfo->pSpectralCoefficient; - FIXP_DBL locMax; - - int ScaleFactorBandsTransmitted = GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo->icsInfo); - - FDK_ASSERT(BandOffsets != NULL); - - FDKmemclear(pSpectralCoefficient, sizeof(SPECTRUM)); - - if ( (flags & AC_ER_HCR) == 0 ) - { - groupoffset = 0; - - /* plain huffman decoder short */ - for (group=0; group < GetWindowGroups(&pAacDecoderChannelInfo->icsInfo); group++) - { - for (band=0; band < ScaleFactorBandsTransmitted; band++) - { - int bnds = group*16+band; - UCHAR currentCB = pCodeBook[bnds]; - - /* patch to run plain-huffman-decoder with vcb11 input codebooks (LAV-checking might be possible below using the virtual cb and a LAV-table) */ - if ((currentCB >= 16) && (currentCB <= 31)) { - pCodeBook[bnds] = currentCB = 11; - } - if ( !((currentCB == ZERO_HCB) - || (currentCB == NOISE_HCB) - || (currentCB == INTENSITY_HCB) - || (currentCB == INTENSITY_HCB2)) ) - { - const CodeBookDescription *hcb = &AACcodeBookDescriptionTable[currentCB]; - int step = hcb->Dimension; - int offset = hcb->Offset; - int bits = hcb->numBits; - int mask = (1<<bits)-1; - - for (groupwin=0; groupwin < GetWindowGroupLength(&pAacDecoderChannelInfo->icsInfo,group); groupwin++) - { - window = groupoffset + groupwin; - - FIXP_DBL *mdctSpectrum = SPEC(pSpectralCoefficient, window, pAacDecoderChannelInfo->granuleLength); - - locMax = (FIXP_DBL)0 ; - - for (index=BandOffsets[band]; index < BandOffsets[band+1]; index+=step) - { - int idx = CBlock_DecodeHuffmanWord(bs,hcb); - - for (i=0; i<step; i++) { - FIXP_DBL tmp; - - tmp = (FIXP_DBL)((idx & mask)-offset); - idx >>= bits; - - if (offset == 0) { - if (tmp != FIXP_DBL(0)) - tmp = (FDKreadBits(bs,1))? -tmp : tmp; - } - mdctSpectrum[index+i] = tmp; - } - - if (currentCB == ESCBOOK) - { - mdctSpectrum[index+0] = (FIXP_DBL)CBlock_GetEscape(bs, (LONG)mdctSpectrum[index+0]); - mdctSpectrum[index+1] = (FIXP_DBL)CBlock_GetEscape(bs, (LONG)mdctSpectrum[index+1]); - - } - } - } - } - } - groupoffset += GetWindowGroupLength(&pAacDecoderChannelInfo->icsInfo,group); - } - /* plain huffman decoding (short) finished */ - } - /* HCR - Huffman Codeword Reordering short */ - else /* if ( flags & AC_ER_HCR ) */ - { - H_HCR_INFO hHcr = &pAacDecoderChannelInfo->pComData->overlay.aac.erHcrInfo; - int hcrStatus = 0; - - /* advanced Huffman decoding starts here (HCR decoding :) */ - if ( pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfReorderedSpectralData != 0 ) { - - /* HCR initialization short */ - hcrStatus = HcrInit(hHcr, pAacDecoderChannelInfo, pSamplingRateInfo, bs); - - if (hcrStatus != 0) { - return AAC_DEC_DECODE_FRAME_ERROR; - } - - /* HCR decoding short */ - hcrStatus = HcrDecoder(hHcr, pAacDecoderChannelInfo, pSamplingRateInfo, bs); - - if (hcrStatus != 0) { -#if HCR_ERROR_CONCEALMENT - HcrMuteErroneousLines(hHcr); -#else - return AAC_DEC_DECODE_FRAME_ERROR; -#endif /* HCR_ERROR_CONCEALMENT */ - } - - FDKpushFor (bs, pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfReorderedSpectralData); - } - } - /* HCR - Huffman Codeword Reordering short finished */ - - - - if ( IsLongBlock(&pAacDecoderChannelInfo->icsInfo) && !(flags & (AC_ELD|AC_SCALABLE)) ) - { - /* apply pulse data */ - CPulseData_Apply(&pAacDecoderChannelInfo->pDynData->specificTo.aac.PulseData, - GetScaleFactorBandOffsets(&pAacDecoderChannelInfo->icsInfo, pSamplingRateInfo), - SPEC_LONG(pSpectralCoefficient)); - } - - - return AAC_DEC_OK; -} - - - -void ApplyTools ( CAacDecoderChannelInfo *pAacDecoderChannelInfo[], - const SamplingRateInfo *pSamplingRateInfo, - const UINT flags, - const int channel ) -{ - - if ( !(flags & (AC_USAC|AC_RSVD50|AC_MPS_RES)) ) { - CPns_Apply( - &pAacDecoderChannelInfo[channel]->data.aac.PnsData, - &pAacDecoderChannelInfo[channel]->icsInfo, - pAacDecoderChannelInfo[channel]->pSpectralCoefficient, - pAacDecoderChannelInfo[channel]->specScale, - pAacDecoderChannelInfo[channel]->pDynData->aScaleFactor, - pSamplingRateInfo, - pAacDecoderChannelInfo[channel]->granuleLength, - channel - ); - } - - CTns_Apply ( - &pAacDecoderChannelInfo[channel]->pDynData->TnsData, - &pAacDecoderChannelInfo[channel]->icsInfo, - pAacDecoderChannelInfo[channel]->pSpectralCoefficient, - pSamplingRateInfo, - pAacDecoderChannelInfo[channel]->granuleLength - ); -} - -static -int getWindow2Nr(int length, int shape) -{ - int nr = 0; - - if (shape == 2) { - /* Low Overlap, 3/4 zeroed */ - nr = (length * 3)>>2; - } - - return nr; -} - -void CBlock_FrequencyToTime(CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - INT_PCM outSamples[], - const SHORT frameLen, - const int stride, - const int frameOk, - FIXP_DBL *pWorkBuffer1 ) -{ - int fr, fl, tl, nSamples, nSpec; - - /* Determine left slope length (fl), right slope length (fr) and transform length (tl). - USAC: The slope length may mismatch with the previous frame in case of LPD / FD - transitions. The adjustment is handled by the imdct implementation. - */ - tl = frameLen; - nSpec = 1; - - switch( pAacDecoderChannelInfo->icsInfo.WindowSequence ) { - default: - case OnlyLongSequence: - fl = frameLen; - fr = frameLen - getWindow2Nr(frameLen, GetWindowShape(&pAacDecoderChannelInfo->icsInfo)); - break; - case LongStopSequence: - fl = frameLen >> 3; - fr = frameLen; - break; - case LongStartSequence: /* or StopStartSequence */ - fl = frameLen; - fr = frameLen >> 3; - break; - case EightShortSequence: - fl = fr = frameLen >> 3; - tl >>= 3; - nSpec = 8; - break; - } - - { - int i; - - { - FIXP_DBL *tmp = pAacDecoderChannelInfo->pComData->workBufferCore1->mdctOutTemp; - - nSamples = imdct_block( - &pAacDecoderStaticChannelInfo->IMdct, - tmp, - SPEC_LONG(pAacDecoderChannelInfo->pSpectralCoefficient), - pAacDecoderChannelInfo->specScale, - nSpec, - frameLen, - tl, - FDKgetWindowSlope(fl, GetWindowShape(&pAacDecoderChannelInfo->icsInfo)), - fl, - FDKgetWindowSlope(fr, GetWindowShape(&pAacDecoderChannelInfo->icsInfo)), - fr, - (FIXP_DBL)0 ); - - for (i=0; i<frameLen; i++) { - outSamples[i*stride] = IMDCT_SCALE(tmp[i]); - } - } - } - - FDK_ASSERT(nSamples == frameLen); - -} - -#include "ldfiltbank.h" -void CBlock_FrequencyToTimeLowDelay( CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - INT_PCM outSamples[], - const short frameLen, - const char stride ) -{ - InvMdctTransformLowDelay_fdk ( - SPEC_LONG(pAacDecoderChannelInfo->pSpectralCoefficient), - pAacDecoderChannelInfo->specScale[0], - outSamples, - pAacDecoderStaticChannelInfo->pOverlapBuffer, - stride, - frameLen - ); -} diff --git a/libAACdec/src/block.h b/libAACdec/src/block.h deleted file mode 100644 index f9394f6..0000000 --- a/libAACdec/src/block.h +++ /dev/null @@ -1,322 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - Description: long/short-block decoding - -******************************************************************************/ - -#ifndef BLOCK_H -#define BLOCK_H - -#include "common_fix.h" - -#include "channelinfo.h" -#include "FDK_bitstream.h" - -/* PNS (of block) */ -void CPns_Read (CPnsData *pPnsData, - HANDLE_FDK_BITSTREAM bs, - const CodeBookDescription *hcb, - SHORT *pScaleFactor, - UCHAR global_gain, - int band, - int group); - - -void CPns_Apply (const CPnsData *pPnsData, - const CIcsInfo *pIcsInfo, - SPECTRAL_PTR pSpectrum, - const SHORT *pSpecScale, - const SHORT *pScaleFactor, - const SamplingRateInfo *pSamplingRateInfo, - const INT granuleLength, - const int channel); - - - -/* TNS (of block) */ -/*! - \brief Read tns data-present flag from bitstream - - The function reads the data-present flag for tns from - the bitstream. - - \return none -*/ -void CTns_ReadDataPresentFlag(HANDLE_FDK_BITSTREAM bs, - CTnsData *pTnsData); - -void CTns_ReadDataPresentUsac( - HANDLE_FDK_BITSTREAM hBs, - CTnsData *pTnsData0, - CTnsData *pTnsData1, - const CIcsInfo *pIcsInfo, - const UINT flags, - const int fCommonWindow - ); - -AAC_DECODER_ERROR CTns_Read(HANDLE_FDK_BITSTREAM bs, - CTnsData *pTnsData, - const CIcsInfo *pIcsInfo, - const UINT flags); - -void CTns_Apply ( CTnsData *RESTRICT pTnsData, /*!< pointer to aac decoder info */ - const CIcsInfo *pIcsInfo, - SPECTRAL_PTR pSpectralCoefficient, - const SamplingRateInfo *pSamplingRateInfo, - const INT granuleLength); - -/* Block */ - -LONG CBlock_GetEscape(HANDLE_FDK_BITSTREAM bs, const LONG q); - -/** - * \brief Read scale factor data. See chapter 4.6.2.3.2 of ISO/IEC 14496-3. - * The SF_OFFSET = 100 value referenced in chapter 4.6.2.3.3 is already substracted - * from the scale factor values. Also includes PNS data reading. - * \param bs bit stream handle data source - * \param pAacDecoderChannelInfo channel context info were decoded data is stored into. - * \param flags the decoder flags. - */ -AAC_DECODER_ERROR CBlock_ReadScaleFactorData( - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - HANDLE_FDK_BITSTREAM bs, - const UINT flags - ); - -/** - * \brief Read Huffman encoded spectral data. - * \param pAacDecoderChannelInfo channel context info. - * \param pSamplingRateInfo sampling rate info (sfb offsets). - * \param flags syntax flags. - */ -AAC_DECODER_ERROR CBlock_ReadSpectralData(HANDLE_FDK_BITSTREAM bs, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - const SamplingRateInfo *pSamplingRateInfo, - const UINT flags); - - -AAC_DECODER_ERROR CBlock_ReadSectionData(HANDLE_FDK_BITSTREAM bs, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - const SamplingRateInfo *pSamplingRateInfo, - const UINT flags); - -/** - * \brief find a common exponent (shift factor) for all sfb in each Spectral window, and store them into - * CAacDecoderChannelInfo::specScale. - * \param pAacDecoderChannelInfo channel context info. - * \param pSamplingRateInfo sampling rate info (sfb offsets). - */ -void CBlock_ScaleSpectralData(CAacDecoderChannelInfo *pAacDecoderChannelInfo, SamplingRateInfo *pSamplingRateInfo); - -/** - * \brief Apply TNS and PNS tools. - */ -void ApplyTools ( CAacDecoderChannelInfo *pAacDecoderChannelInfo[], - const SamplingRateInfo *pSamplingRateInfo, - const UINT flags, - const int channel ); - -/** - * \brief Transform MDCT spectral data into time domain - */ -void CBlock_FrequencyToTime(CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - INT_PCM outSamples[], - const SHORT frameLen, - const int stride, - const int frameOk, - FIXP_DBL *pWorkBuffer1); - -/** - * \brief Transform double lapped MDCT (AAC-ELD) spectral data into time domain. - */ -void CBlock_FrequencyToTimeLowDelay(CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - INT_PCM outSamples[], - const short frameLen, - const char stride); - -AAC_DECODER_ERROR CBlock_InverseQuantizeSpectralData(CAacDecoderChannelInfo *pAacDecoderChannelInfo, SamplingRateInfo *pSamplingRateInfo); - -/** - * \brief Calculate 2^(lsb/4) * value^(4/3) - * \param pValue pointer to quantized value. The inverse quantized result is stored back here. - * \param lsb 2 LSBs of the scale factor (scaleFactor % 4) applied as power 2 factor to the - * resulting inverse quantized value. - * \return the exponent of the result (mantissa) stored into *pValue. - */ -FDK_INLINE -int EvaluatePower43 ( FIXP_DBL *pValue, - UINT lsb ) -{ - FIXP_DBL value; - UINT freeBits; - UINT exponent; - - value = *pValue; - freeBits = fNormz (value) ; - exponent = DFRACT_BITS - freeBits ; - FDK_ASSERT (exponent < 14); - - UINT x = (((int)value << freeBits) >> 19) ; - UINT tableIndex = (x & 0x0FFF) >> 4 ; - FIXP_DBL invQVal ; - - x = x & 0x0F; - - UINT r0=(LONG)InverseQuantTable [tableIndex+0]; - UINT r1=(LONG)InverseQuantTable [tableIndex+1]; - USHORT nx=16-x; - UINT temp=(r0)*nx+(r1)*x; - invQVal = (FIXP_DBL)temp; - - FDK_ASSERT(lsb < 4); - *pValue = fMultDiv2 (invQVal, MantissaTable [lsb][exponent]) ; - - /* + 1 compensates fMultDiv2(). */ - return ExponentTable [lsb][exponent] + 1; -} - -/** - * \brief determine the required shift scale for the given quantized value and scale (factor % 4) value. - */ -FDK_INLINE int GetScaleFromValue (FIXP_DBL value, unsigned int lsb) -{ - if (value!=(FIXP_DBL)0) - { - int scale = EvaluatePower43 (&value, lsb) ; - return CntLeadingZeros (value) - scale - 2 ; - } - else - return 0; /* Return zero, because its useless to scale a zero value, saves workload and avoids scaling overshifts. */ -} - - -//#ifdef AACDEC_HUFFMANDECODER_ENABLE - -/*! - \brief Read huffman codeword - - The function reads the huffman codeword from the bitstream and - returns the index value. - - \return index value -*/ -inline int CBlock_DecodeHuffmanWord( HANDLE_FDK_BITSTREAM bs, /*!< pointer to bitstream */ - const CodeBookDescription *hcb ) /*!< pointer to codebook description */ -{ - UINT val; - UINT index = 0; - const USHORT (*CodeBook) [HuffmanEntries] = hcb->CodeBook; - - while (1) - { - val = CodeBook[index][FDKreadBits(bs,HuffmanBits)]; /* Expensive memory access */ - - if ((val & 1) == 0) - { - index = val>>2; - continue; - } - else - { - if (val & 2) - { - FDKpushBackCache(bs,1); - } - - val >>= 2; - break; - } - } - - return val; -} - -//#endif /* AACDEC_HUFFMANDECODER_ENABLE */ - -#endif /* #ifndef BLOCK_H */ diff --git a/libAACdec/src/channel.cpp b/libAACdec/src/channel.cpp deleted file mode 100644 index 5475079..0000000 --- a/libAACdec/src/channel.cpp +++ /dev/null @@ -1,451 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - Description: - -******************************************************************************/ - -#include "channel.h" -#include "aacdecoder.h" -#include "block.h" -#include "aacdec_tns.h" -#include "FDK_bitstream.h" -#include "FDK_tools_rom.h" - -#include "conceal.h" - -#include "rvlc.h" - -#include "aacdec_hcr.h" - - -static -void MapMidSideMaskToPnsCorrelation (CAacDecoderChannelInfo *pAacDecoderChannelInfo[2]) -{ - int group; - - for (group = 0 ; group < pAacDecoderChannelInfo[L]->icsInfo.WindowGroups; group++) { - UCHAR groupMask = 1 << group; - - for (UCHAR band = 0 ; band < pAacDecoderChannelInfo[L]->icsInfo.MaxSfBands; band++) { - if (pAacDecoderChannelInfo[L]->pComData->jointStereoData.MsUsed[band] & groupMask) { /* channels are correlated */ - CPns_SetCorrelation(&pAacDecoderChannelInfo[L]->data.aac.PnsData, group, band, 0); - - if (CPns_IsPnsUsed(&pAacDecoderChannelInfo[L]->data.aac.PnsData, group, band) && - CPns_IsPnsUsed(&pAacDecoderChannelInfo[R]->data.aac.PnsData, group, band)) - pAacDecoderChannelInfo[L]->pComData->jointStereoData.MsUsed[band] ^= groupMask; /* clear the groupMask-bit */ - } - } - } -} - -/*! - \brief Decode channel pair element - - The function decodes a channel pair element. - - \return none -*/ -void CChannelElement_Decode( CAacDecoderChannelInfo *pAacDecoderChannelInfo[2], /*!< pointer to aac decoder channel info */ - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[2], - SamplingRateInfo *pSamplingRateInfo, - UINT flags, - int el_channels) -{ - int ch, maybe_jstereo = 0; - - maybe_jstereo = (el_channels > 1); - - for (ch = 0; ch < el_channels; ch++) { - if ( pAacDecoderChannelInfo[ch]->renderMode == AACDEC_RENDER_IMDCT - || pAacDecoderChannelInfo[ch]->renderMode == AACDEC_RENDER_ELDFB ) - { - CBlock_InverseQuantizeSpectralData(pAacDecoderChannelInfo[ch], pSamplingRateInfo); - } - } - - - - if (maybe_jstereo) { - /* apply ms */ - if (pAacDecoderChannelInfo[L]->pDynData->RawDataInfo.CommonWindow) { - int maxSfBandsL = GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo[L]->icsInfo); - int maxSfBandsR = GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo[R]->icsInfo); - if (pAacDecoderChannelInfo[L]->data.aac.PnsData.PnsActive || pAacDecoderChannelInfo[R]->data.aac.PnsData.PnsActive) { - MapMidSideMaskToPnsCorrelation(pAacDecoderChannelInfo); - } - - CJointStereo_ApplyMS(pAacDecoderChannelInfo, - GetScaleFactorBandOffsets(&pAacDecoderChannelInfo[L]->icsInfo, pSamplingRateInfo), - GetWindowGroupLengthTable(&pAacDecoderChannelInfo[L]->icsInfo), - GetWindowGroups(&pAacDecoderChannelInfo[L]->icsInfo), - maxSfBandsL, - maxSfBandsR); - } - - /* apply intensity stereo */ /* modifies pAacDecoderChannelInfo[]->aSpecSfb */ - CJointStereo_ApplyIS(pAacDecoderChannelInfo, - GetScaleFactorBandOffsets(&pAacDecoderChannelInfo[L]->icsInfo, pSamplingRateInfo), - GetWindowGroupLengthTable(&pAacDecoderChannelInfo[L]->icsInfo), - GetWindowGroups(&pAacDecoderChannelInfo[L]->icsInfo), - GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo[L]->icsInfo), - pAacDecoderChannelInfo[L]->pDynData->RawDataInfo.CommonWindow ? 1 : 0); - - } - - for (ch = 0; ch < el_channels; ch++) - { - { - /* write pAacDecoderChannelInfo[ch]->specScale */ - CBlock_ScaleSpectralData(pAacDecoderChannelInfo[ch], pSamplingRateInfo); - - ApplyTools (pAacDecoderChannelInfo, pSamplingRateInfo, flags, ch); - } - - } - - CRvlc_ElementCheck( - pAacDecoderChannelInfo, - pAacDecoderStaticChannelInfo, - flags, - el_channels - ); -} - -void CChannel_CodebookTableInit(CAacDecoderChannelInfo *pAacDecoderChannelInfo) -{ - int b, w, maxBands, maxWindows; - int maxSfb = GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo->icsInfo); - UCHAR *pCodeBook = pAacDecoderChannelInfo->pDynData->aCodeBook; - - if ( IsLongBlock(&pAacDecoderChannelInfo->icsInfo) ) { - maxBands = 64; - maxWindows = 1; - } else { - maxBands = 16; - maxWindows = 8; - } - - for (w = 0; w<maxWindows; w++) { - for (b = 0; b < maxSfb; b++) { - pCodeBook[b] = ESCBOOK; - } - for (; b<maxBands; b++) { - pCodeBook[b] = ZERO_HCB; - } - pCodeBook += maxBands; - } -} - - -/* - * Arbitrary order bitstream parser - */ - -AAC_DECODER_ERROR CChannelElement_Read(HANDLE_FDK_BITSTREAM hBs, - CAacDecoderChannelInfo *pAacDecoderChannelInfo[], - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[], - const AUDIO_OBJECT_TYPE aot, - const SamplingRateInfo *pSamplingRateInfo, - const UINT flags, - const UINT frame_length, - const UCHAR numberOfChannels, - const SCHAR epConfig, - HANDLE_TRANSPORTDEC pTpDec - ) -{ - AAC_DECODER_ERROR error = AAC_DEC_OK; - const element_list_t *list; - int i, ch, decision_bit; - int crcReg1 = -1, crcReg2 = -1; - - FDK_ASSERT( (numberOfChannels == 1) || (numberOfChannels == 2) ); - - /* Get channel element sequence table */ - list = getBitstreamElementList(aot, epConfig, numberOfChannels, 0); - if (list == NULL) { - error = AAC_DEC_UNSUPPORTED_FORMAT; - goto bail; - } - - CTns_Reset(&pAacDecoderChannelInfo[0]->pDynData->TnsData); - if (numberOfChannels == 2) { - CTns_Reset(&pAacDecoderChannelInfo[1]->pDynData->TnsData); - } - - if (flags & (AC_ELD|AC_SCALABLE)) { - pAacDecoderChannelInfo[0]->pDynData->RawDataInfo.CommonWindow = 1; - if (numberOfChannels == 2) { - pAacDecoderChannelInfo[1]->pDynData->RawDataInfo.CommonWindow = pAacDecoderChannelInfo[0]->pDynData->RawDataInfo.CommonWindow; - } - if (numberOfChannels == 2) { - pAacDecoderChannelInfo[1]->pDynData->RawDataInfo.CommonWindow = pAacDecoderChannelInfo[0]->pDynData->RawDataInfo.CommonWindow; - } - } - - /* Iterate through sequence table */ - i = 0; - ch = 0; - decision_bit = 0; - do { - switch (list->id[i]) { - case element_instance_tag: - pAacDecoderChannelInfo[0]->ElementInstanceTag = FDKreadBits(hBs, 4); - if (numberOfChannels == 2) { - pAacDecoderChannelInfo[1]->ElementInstanceTag = pAacDecoderChannelInfo[0]->ElementInstanceTag; - } - break; - case common_window: - decision_bit = pAacDecoderChannelInfo[ch]->pDynData->RawDataInfo.CommonWindow = FDKreadBits(hBs, 1); - if (numberOfChannels == 2) { - pAacDecoderChannelInfo[1]->pDynData->RawDataInfo.CommonWindow = pAacDecoderChannelInfo[0]->pDynData->RawDataInfo.CommonWindow; - } - break; - case ics_info: - /* Read individual channel info */ - error = IcsRead( hBs, - &pAacDecoderChannelInfo[ch]->icsInfo, - pSamplingRateInfo, - flags ); - - if (numberOfChannels == 2 && pAacDecoderChannelInfo[0]->pDynData->RawDataInfo.CommonWindow) { - pAacDecoderChannelInfo[1]->icsInfo = pAacDecoderChannelInfo[0]->icsInfo; - } - break; - - - case ltp_data_present: - if (FDKreadBits(hBs, 1) != 0) { - error = AAC_DEC_UNSUPPORTED_PREDICTION; - } - break; - - case ms: - if ( CJointStereo_Read( - hBs, - &pAacDecoderChannelInfo[0]->pComData->jointStereoData, - GetWindowGroups(&pAacDecoderChannelInfo[0]->icsInfo), - GetScaleMaxFactorBandsTransmitted(&pAacDecoderChannelInfo[0]->icsInfo, - &pAacDecoderChannelInfo[1]->icsInfo), - flags) ) - { - error = AAC_DEC_PARSE_ERROR; - } - break; - - case global_gain: - pAacDecoderChannelInfo[ch]->pDynData->RawDataInfo.GlobalGain = (UCHAR) FDKreadBits(hBs,8); - break; - - case section_data: - error = CBlock_ReadSectionData( hBs, - pAacDecoderChannelInfo[ch], - pSamplingRateInfo, - flags ); - break; - - - case scale_factor_data: - if (flags & AC_ER_RVLC) { - /* read RVLC data from bitstream (error sens. cat. 1) */ - CRvlc_Read(pAacDecoderChannelInfo[ch], hBs); - } - else - { - error = CBlock_ReadScaleFactorData(pAacDecoderChannelInfo[ch], hBs, flags); - } - break; - - case pulse: - if ( CPulseData_Read( hBs, - &pAacDecoderChannelInfo[ch]->pDynData->specificTo.aac.PulseData, - pSamplingRateInfo->ScaleFactorBands_Long, /* pulse data is only allowed to be present in long blocks! */ - (void*)&pAacDecoderChannelInfo[ch]->icsInfo, - frame_length - ) != 0 ) - { - error = AAC_DEC_DECODE_FRAME_ERROR; - } - break; - case tns_data_present: - CTns_ReadDataPresentFlag(hBs, &pAacDecoderChannelInfo[ch]->pDynData->TnsData); - break; - case tns_data: - /* tns_data_present is checked inside CTns_Read(). */ - error = CTns_Read(hBs, &pAacDecoderChannelInfo[ch]->pDynData->TnsData, &pAacDecoderChannelInfo[ch]->icsInfo, flags); - break; - - case gain_control_data: - break; - - case gain_control_data_present: - if (FDKreadBits(hBs, 1)) { - error = AAC_DEC_UNSUPPORTED_GAIN_CONTROL_DATA; - } - break; - - case esc2_rvlc: - if (flags & AC_ER_RVLC) { - CRvlc_Decode( - pAacDecoderChannelInfo[ch], - pAacDecoderStaticChannelInfo[ch], - hBs - ); - } - break; - - case esc1_hcr: - if (flags & AC_ER_HCR) { - CHcr_Read(hBs, pAacDecoderChannelInfo[ch] ); - } - break; - - case spectral_data: - error = CBlock_ReadSpectralData( hBs, - pAacDecoderChannelInfo[ch], - pSamplingRateInfo, - flags ); - if (flags & AC_ELD) { - pAacDecoderChannelInfo[ch]->renderMode = AACDEC_RENDER_ELDFB; - } else { - pAacDecoderChannelInfo[ch]->renderMode = AACDEC_RENDER_IMDCT; - } - break; - - - /* CRC handling */ - case adtscrc_start_reg1: - if (pTpDec != NULL) { - crcReg1 = transportDec_CrcStartReg(pTpDec, 192); - } - break; - case adtscrc_start_reg2: - if (pTpDec != NULL) { - crcReg2 = transportDec_CrcStartReg(pTpDec, 128); - } - break; - case adtscrc_end_reg1: - case drmcrc_end_reg: - if (pTpDec != NULL) { - transportDec_CrcEndReg(pTpDec, crcReg1); - } - break; - case adtscrc_end_reg2: - if (pTpDec != NULL) { - transportDec_CrcEndReg(pTpDec, crcReg2); - } - break; - case drmcrc_start_reg: - if (pTpDec != NULL) { - crcReg1 = transportDec_CrcStartReg(pTpDec, 0); - } - break; - - /* Non data cases */ - case next_channel: - ch = (ch + 1) % numberOfChannels; - break; - case link_sequence: - list = list->next[decision_bit]; - i=-1; - break; - - default: - error = AAC_DEC_UNSUPPORTED_FORMAT; - break; - } - - if (error != AAC_DEC_OK) { - goto bail; - } - - i++; - - } while (list->id[i] != end_of_sequence); - -bail: - return error; -} diff --git a/libAACdec/src/channel.h b/libAACdec/src/channel.h deleted file mode 100644 index 1146998..0000000 --- a/libAACdec/src/channel.h +++ /dev/null @@ -1,148 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - Description: - -******************************************************************************/ - -#ifndef CHANNEL_H -#define CHANNEL_H - -#include "common_fix.h" - -#include "FDK_bitstream.h" -#include "channelinfo.h" -#include "tpdec_lib.h" - -/** - * \brief Init codeBook SFB indices (section data) with HCB_ESC. Useful for bitstreams - * which do not have any section data, but still SFB's (scale factor bands). This has - * the effect that upto the amount of transmitted SFB are treated as non-zero. - * \param pAacDecoderChannelInfo channel info structure containing a valid icsInfo struct. - */ -void CChannel_CodebookTableInit(CAacDecoderChannelInfo *pAacDecoderChannelInfo); - -/** - * \brief decode a channel element. To be called after CChannelElement_Read() - * \param pAacDecoderChannelInfo pointer to channel data struct. Depending on el_channels either one or two. - * \param pSamplingRateInfo pointer to sample rate information structure - * \param el_channels amount of channels of the element to be decoded. - * \param output pointer to time domain output buffer (ACELP) - * \param stride factor for accessing output - */ -void CChannelElement_Decode ( CAacDecoderChannelInfo *pAacDecoderChannelInfo[2], - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[2], - SamplingRateInfo *pSamplingRateInfo, - UINT flags, - int el_channels ); - - -/** - * \brief Read channel element of given type from bitstream. - * \param hBs bitstream handle to access bitstream data. - * \param pAacDecoderChannelInfo pointer array to store channel information. - * \param aot Audio Object Type - * \param pSamplingRateInfo sampling rate info table. - * \param flags parser guidance flags - * \param numberOfChannels amoun of channels contained in the object to be parsed. - * \param epConfig the current epConfig value obtained from the Audio Specific Config. - * \param pTp transport decoder handle required for ADTS CRC checking. - * ... - * \return an AAC_DECODER_ERROR error code. - */ -AAC_DECODER_ERROR CChannelElement_Read(HANDLE_FDK_BITSTREAM hBs, - CAacDecoderChannelInfo *pAacDecoderChannelInfo[], - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[], - const AUDIO_OBJECT_TYPE aot, - const SamplingRateInfo *pSamplingRateInfo, - const UINT flags, - const UINT frame_length, - const UCHAR numberOfChannels, - const SCHAR epConfig, - HANDLE_TRANSPORTDEC pTpDec - ); - -#endif /* #ifndef CHANNEL_H */ diff --git a/libAACdec/src/channelinfo.cpp b/libAACdec/src/channelinfo.cpp deleted file mode 100644 index 76d5895..0000000 --- a/libAACdec/src/channelinfo.cpp +++ /dev/null @@ -1,276 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - Description: individual channel stream info - -******************************************************************************/ - -#include "channelinfo.h" -#include "aac_rom.h" -#include "aac_ram.h" -#include "FDK_bitstream.h" - - -AAC_DECODER_ERROR IcsReadMaxSfb ( - HANDLE_FDK_BITSTREAM bs, - CIcsInfo *pIcsInfo, - const SamplingRateInfo *pSamplingRateInfo - ) -{ - AAC_DECODER_ERROR ErrorStatus = AAC_DEC_OK; - int nbits; - - if (IsLongBlock(pIcsInfo)) { - nbits = 6; - pIcsInfo->TotalSfBands = pSamplingRateInfo->NumberOfScaleFactorBands_Long; - } else { - nbits = 4; - pIcsInfo->TotalSfBands = pSamplingRateInfo->NumberOfScaleFactorBands_Short; - } - pIcsInfo->MaxSfBands = (UCHAR) FDKreadBits(bs, nbits); - - if (pIcsInfo->MaxSfBands > pIcsInfo->TotalSfBands){ - ErrorStatus = AAC_DEC_PARSE_ERROR; - } - - return ErrorStatus; -} - - - -AAC_DECODER_ERROR IcsRead(HANDLE_FDK_BITSTREAM bs, - CIcsInfo *pIcsInfo, - const SamplingRateInfo* pSamplingRateInfo, - const UINT flags) -{ - AAC_DECODER_ERROR ErrorStatus = AAC_DEC_OK; - - pIcsInfo->Valid = 0; - - if (flags & AC_ELD){ - pIcsInfo->WindowSequence = OnlyLongSequence; - pIcsInfo->WindowShape = 0; - } - else { - if ( !(flags & (AC_USAC|AC_RSVD50)) ) { - FDKreadBits(bs,1); - } - pIcsInfo->WindowSequence = (UCHAR) FDKreadBits(bs,2); - pIcsInfo->WindowShape = (UCHAR) FDKreadBits(bs,1); - if (flags & AC_LD) { - if (pIcsInfo->WindowShape) { - pIcsInfo->WindowShape = 2; /* select low overlap instead of KBD */ - } - } - } - - /* Sanity check */ - if ( (flags & (AC_ELD|AC_LD)) && pIcsInfo->WindowSequence != OnlyLongSequence) { - pIcsInfo->WindowSequence = OnlyLongSequence; - ErrorStatus = AAC_DEC_PARSE_ERROR; - goto bail; - } - - ErrorStatus = IcsReadMaxSfb(bs, pIcsInfo, pSamplingRateInfo); - if (ErrorStatus != AAC_DEC_OK) { - goto bail; - } - - if (IsLongBlock(pIcsInfo)) - { - if ( !(flags & (AC_ELD|AC_SCALABLE|AC_BSAC|AC_USAC|AC_RSVD50)) ) /* If not ELD nor Scalable nor BSAC nor USAC syntax then ... */ - { - if ((UCHAR)FDKreadBits(bs,1) != 0 ) /* UCHAR PredictorDataPresent */ - { - ErrorStatus = AAC_DEC_UNSUPPORTED_PREDICTION; - goto bail; - } - } - - pIcsInfo->WindowGroups = 1; - pIcsInfo->WindowGroupLength[0] = 1; - } - else - { - INT i; - UINT mask; - - pIcsInfo->ScaleFactorGrouping = (UCHAR) FDKreadBits(bs,7); - - pIcsInfo->WindowGroups = 0 ; - - for (i=0; i < (8-1); i++) - { - mask = 1 << (6 - i); - pIcsInfo->WindowGroupLength[i] = 1; - - if (pIcsInfo->ScaleFactorGrouping & mask) - { - pIcsInfo->WindowGroupLength[pIcsInfo->WindowGroups]++; - } - else - { - pIcsInfo->WindowGroups++; - } - } - - /* loop runs to i < 7 only */ - pIcsInfo->WindowGroupLength[8-1] = 1; - pIcsInfo->WindowGroups++; - } - - -bail: - if (ErrorStatus == AAC_DEC_OK) - pIcsInfo->Valid = 1; - - return ErrorStatus; -} - - -/* - interleave codebooks the following way - - 9 (84w) | 1 (51w) - 10 (82w) | 2 (39w) - SCL (65w) | 4 (38w) - 3 (39w) | 5 (41w) - | 6 (40w) - | 7 (31w) - | 8 (31w) - (270w) (271w) -*/ - - -/* - Table entries are sorted as following: - | num_swb_long_window | sfbands_long | num_swb_short_window | sfbands_short | -*/ -AAC_DECODER_ERROR getSamplingRateInfo( - SamplingRateInfo *t, - UINT samplesPerFrame, - UINT samplingRateIndex, - UINT samplingRate - ) -{ - int index = 0; - - - t->samplingRateIndex = samplingRateIndex; - t->samplingRate = samplingRate; - - switch (samplesPerFrame) { - case 1024: - index = 0; - break; - case 960: - index = 1; - break; - case 512: - index = 3; - break; - case 480: - index = 4; - break; - - default: - return AAC_DEC_UNSUPPORTED_FORMAT; - } - - t->ScaleFactorBands_Long = sfbOffsetTables[index][samplingRateIndex].sfbOffsetLong; - t->ScaleFactorBands_Short = sfbOffsetTables[index][samplingRateIndex].sfbOffsetShort; - t->NumberOfScaleFactorBands_Long = sfbOffsetTables[index][samplingRateIndex].numberOfSfbLong; - t->NumberOfScaleFactorBands_Short = sfbOffsetTables[index][samplingRateIndex].numberOfSfbShort; - - if (t->ScaleFactorBands_Long == NULL || t->NumberOfScaleFactorBands_Long == 0) { - return AAC_DEC_UNSUPPORTED_FORMAT; - } - - FDK_ASSERT(t->ScaleFactorBands_Long[t->NumberOfScaleFactorBands_Long] == samplesPerFrame); - FDK_ASSERT(t->ScaleFactorBands_Short == NULL || t->ScaleFactorBands_Short[t->NumberOfScaleFactorBands_Short]*8 == samplesPerFrame); - - return AAC_DEC_OK; -} diff --git a/libAACdec/src/channelinfo.h b/libAACdec/src/channelinfo.h deleted file mode 100644 index e092ab3..0000000 --- a/libAACdec/src/channelinfo.h +++ /dev/null @@ -1,450 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - Description: individual channel stream info - -******************************************************************************/ - -#ifndef CHANNELINFO_H -#define CHANNELINFO_H - -#include "common_fix.h" - -#include "aac_rom.h" -#include "aacdecoder_lib.h" -#include "FDK_bitstream.h" -#include "overlapadd.h" - -#include "mdct.h" -#include "stereo.h" -#include "pulsedata.h" -#include "aacdec_tns.h" - -#include "aacdec_pns.h" - -#include "aacdec_hcr_types.h" -#include "rvlc_info.h" - - -#include "conceal_types.h" - - #include "aacdec_drc_types.h" - -/* Output rendering mode */ -typedef enum { - AACDEC_RENDER_INVALID = 0, - AACDEC_RENDER_IMDCT, - AACDEC_RENDER_ELDFB, - AACDEC_RENDER_LPD, - AACDEC_RENDER_INTIMDCT -} AACDEC_RENDER_MODE; - -enum { - MAX_QUANTIZED_VALUE = 8191 -}; - -enum -{ - OnlyLongSequence = 0, - LongStartSequence, - EightShortSequence, - LongStopSequence -}; - - -typedef struct -{ - const SHORT *ScaleFactorBands_Long; - const SHORT *ScaleFactorBands_Short; - UCHAR NumberOfScaleFactorBands_Long; - UCHAR NumberOfScaleFactorBands_Short; - UINT samplingRateIndex; - UINT samplingRate; -} SamplingRateInfo; - -typedef struct -{ - UCHAR CommonWindow; - UCHAR GlobalGain; - -} CRawDataInfo; - -typedef struct -{ - UCHAR WindowGroupLength[8]; - UCHAR WindowGroups; - UCHAR Valid; - - UCHAR WindowShape; /* 0: sine window, 1: KBD, 2: low overlap */ - UCHAR WindowSequence; /* See enum above, 0: long, 1: start, 2: short, 3: stop */ - UCHAR MaxSfBands; - UCHAR ScaleFactorGrouping; - - UCHAR TotalSfBands; - -} CIcsInfo; - - -enum -{ - ZERO_HCB = 0, - ESCBOOK = 11, - NSPECBOOKS = ESCBOOK + 1, - BOOKSCL = NSPECBOOKS, - NOISE_HCB = 13, - INTENSITY_HCB2 = 14, - INTENSITY_HCB = 15, - LAST_HCB -}; - -#define TNS_SCALE 3 - -/* - * This struct must be allocated one for every channel and must be persistent. - */ -typedef struct -{ - FIXP_DBL *pOverlapBuffer; - mdct_t IMdct; - - - - CDrcChannelData drcData; - CConcealmentInfo concealmentInfo; - -} CAacDecoderStaticChannelInfo; - - -/* - * This union must be allocated for every element (up to 2 channels). - */ -typedef struct { - - /* Common bit stream data */ - SHORT aScaleFactor[(8*16)]; /* Spectral scale factors for each sfb in each window. */ - SHORT aSfbScale[(8*16)]; /* could be free after ApplyTools() */ - UCHAR aCodeBook[(8*16)]; /* section data: codebook for each window and sfb. */ - CTnsData TnsData; - CRawDataInfo RawDataInfo; - - shouldBeUnion { - - struct { - CPulseData PulseData; - SHORT aNumLineInSec4Hcr[MAX_SFB_HCR]; /* needed once for all channels except for Drm syntax */ - UCHAR aCodeBooks4Hcr[MAX_SFB_HCR]; /* needed once for all channels except for Drm syntax. Same as "aCodeBook" ? */ - SHORT lenOfReorderedSpectralData; - SCHAR lenOfLongestCodeword; - SCHAR numberSection; - SCHAR rvlcCurrentScaleFactorOK; - SCHAR rvlcIntensityUsed; - } aac; - } specificTo; - -} CAacDecoderDynamicData; - -typedef shouldBeUnion { - CAacDecoderDynamicData pAacDecoderDynamicData[2]; - - /* Common signal data, can be used once the bit stream data from above is not used anymore. */ - FIXP_DBL mdctOutTemp[1024]; - FIXP_DBL sbrWorkBuffer[1024*2]; - -} CWorkBufferCore1; - -/* Common data referenced by all channels */ -typedef struct { - - CWorkBufferCore1 *workBufferCore1; - FIXP_DBL* workBufferCore2; - - CPnsInterChannelData pnsInterChannelData; - INT pnsCurrentSeed; - INT pnsRandomSeed[(8*16)]; - - CJointStereoData jointStereoData; /* One for one element */ - - shouldBeUnion { - struct { - CErHcrInfo erHcrInfo; - CErRvlcInfo erRvlcInfo; - SHORT aRvlcScfEsc[RVLC_MAX_SFB]; /* needed once for all channels */ - SHORT aRvlcScfFwd[RVLC_MAX_SFB]; /* needed once for all channels */ - SHORT aRvlcScfBwd[RVLC_MAX_SFB]; /* needed once for all channels */ - } aac; - - } overlay; - -} CAacDecoderCommonData; - - -/* - * This struct must be allocated one for every channels of every element and must be persistent. - * Among its members, the following memory areas can be overwritten under the given conditions: - * - pSpectralCoefficient The memory pointed to can be overwritten after time signal rendering. - * - data can be overwritten after time signal rendering. - * - pDynData memory pointed to can be overwritten after each CChannelElement_Decode() call. - * - pComData->overlay memory pointed to can be overwritten after each CChannelElement_Decode() call.. - */ -typedef struct -{ - SPECTRAL_PTR pSpectralCoefficient; /* Spectral coefficients of each window */ - SHORT specScale[8]; /* Scale shift values of each spectrum window */ - CIcsInfo icsInfo; - INT granuleLength; /* Size of smallest spectrum piece */ - UCHAR ElementInstanceTag; - - AACDEC_RENDER_MODE renderMode; /* Output signal rendering mode */ - - shouldBeUnion { - struct { - CPnsData PnsData; /* Not required for USAC */ - } aac; - - struct { - } usac; - } data; - - CAacDecoderDynamicData *pDynData; /* Data required for one element and discarded after decoding */ - CAacDecoderCommonData *pComData; /* Data required for one channel at a time during decode */ - -} CAacDecoderChannelInfo; - -/* channelinfo.cpp */ - -AAC_DECODER_ERROR getSamplingRateInfo(SamplingRateInfo *t, UINT samplesPerFrame, UINT samplingRateIndex, UINT samplingRate); - -/** - * \brief Read max SFB from bit stream and assign TotalSfBands according - * to the window sequence and sample rate. - * \param hBs bit stream handle as data source - * \param pIcsInfo IcsInfo structure to read the window sequence and store MaxSfBands and TotalSfBands - * \param pSamplingRateInfo read only - */ -AAC_DECODER_ERROR IcsReadMaxSfb ( - HANDLE_FDK_BITSTREAM hBs, - CIcsInfo *pIcsInfo, - const SamplingRateInfo *pSamplingRateInfo - ); - -AAC_DECODER_ERROR IcsRead( - HANDLE_FDK_BITSTREAM bs, - CIcsInfo *pIcsInfo, - const SamplingRateInfo* SamplingRateInfoTable, - const UINT flags - ); - -/* stereo.cpp, only called from this file */ - -/*! - \brief Applies MS stereo. - - The function applies MS stereo. - - \param pAacDecoderChannelInfo aac channel info. - \param pScaleFactorBandOffsets pointer to scalefactor band offsets. - \param pWindowGroupLength pointer to window group length array. - \param windowGroups number of window groups. - \param scaleFactorBandsTransmittedL number of transmitted scalefactor bands in left channel. - \param scaleFactorBandsTransmittedR number of transmitted scalefactor bands in right channel. - May differ from scaleFactorBandsTransmittedL only for USAC. - \return none -*/ -void CJointStereo_ApplyMS(CAacDecoderChannelInfo *pAacDecoderChannelInfo[2], - const short *pScaleFactorBandOffsets, - const UCHAR *pWindowGroupLength, - const int windowGroups, - const int scaleFactorBandsTransmittedL, - const int scaleFactorBandsTransmittedR); - -/*! - \brief Applies intensity stereo - - The function applies intensity stereo. - - \param pAacDecoderChannelInfo aac channel info. - \param pScaleFactorBandOffsets pointer to scalefactor band offsets. - \param pWindowGroupLength pointer to window group length array. - \param windowGroups number of window groups. - \param scaleFactorBandsTransmitted number of transmitted scalefactor bands. - \param CommonWindow common window bit. - \return none -*/ -void CJointStereo_ApplyIS(CAacDecoderChannelInfo *pAacDecoderChannelInfo[2], - const short *pScaleFactorBandOffsets, - const UCHAR *pWindowGroupLength, - const int windowGroups, - const int scaleFactorBandsTransmitted, - const UINT CommonWindow); - - -/* aacdec_pns.cpp */ -int CPns_IsPnsUsed (const CPnsData *pPnsData, - const int group, - const int band); - -void CPns_SetCorrelation(CPnsData *pPnsData, - const int group, - const int band, - const int outofphase); - -/****************** inline functions ******************/ - -inline UCHAR IsValid(const CIcsInfo *pIcsInfo) -{ - return pIcsInfo->Valid; -} - -inline UCHAR IsLongBlock(const CIcsInfo *pIcsInfo) -{ - return (pIcsInfo->WindowSequence != EightShortSequence); -} - -inline UCHAR GetWindowShape(const CIcsInfo *pIcsInfo) -{ - return pIcsInfo->WindowShape; -} - -inline UCHAR GetWindowSequence(const CIcsInfo *pIcsInfo) -{ - return pIcsInfo->WindowSequence; -} - -inline const SHORT *GetScaleFactorBandOffsets(const CIcsInfo *pIcsInfo, const SamplingRateInfo* samplingRateInfo) -{ - if (IsLongBlock(pIcsInfo)) - { - return samplingRateInfo->ScaleFactorBands_Long; - } - else - { - return samplingRateInfo->ScaleFactorBands_Short; - } -} - -inline int GetWindowsPerFrame(const CIcsInfo *pIcsInfo) -{ - return (pIcsInfo->WindowSequence == EightShortSequence) ? 8 : 1; -} - -inline UCHAR GetWindowGroups(const CIcsInfo *pIcsInfo) -{ - return pIcsInfo->WindowGroups; -} - -inline UCHAR GetWindowGroupLength(const CIcsInfo *pIcsInfo, const INT index) -{ - return pIcsInfo->WindowGroupLength[index]; -} - -inline const UCHAR *GetWindowGroupLengthTable(const CIcsInfo *pIcsInfo) -{ - return pIcsInfo->WindowGroupLength; -} - -inline UCHAR GetScaleFactorBandsTransmitted(const CIcsInfo *pIcsInfo) -{ - return pIcsInfo->MaxSfBands; -} - -inline UCHAR GetScaleMaxFactorBandsTransmitted(const CIcsInfo *pIcsInfo0, const CIcsInfo *pIcsInfo1) -{ - return fMax(pIcsInfo0->MaxSfBands, pIcsInfo1->MaxSfBands); -} - -inline UCHAR GetScaleFactorBandsTotal(const CIcsInfo *pIcsInfo) -{ - return pIcsInfo->TotalSfBands; -} - -/* Note: This function applies to AAC-LC only ! */ -inline UCHAR GetMaximumTnsBands(const CIcsInfo *pIcsInfo, const int samplingRateIndex) -{ - return tns_max_bands_tbl[samplingRateIndex][!IsLongBlock(pIcsInfo)]; -} - -#endif /* #ifndef CHANNELINFO_H */ - diff --git a/libAACdec/src/conceal.cpp b/libAACdec/src/conceal.cpp deleted file mode 100644 index c26051c..0000000 --- a/libAACdec/src/conceal.cpp +++ /dev/null @@ -1,1865 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - Description: independent channel concealment - -******************************************************************************/ - -/*! - \page concealment AAC core concealment - - This AAC core implementation includes a concealment function, which can be enabled - using the several defines during compilation. - - There are various tests inside the core, starting with simple CRC tests and ending in - a variety of plausibility checks. If such a check indicates an invalid bitstream, then - concealment is applied. - - Concealment is also applied when the calling main program indicates a distorted or missing - data frame using the frameOK flag. This is used for error detection on the transport layer. - (See below) - - There are three concealment-modes: - - 1) Muting: The spectral data is simply set to zero in case of an detected error. - - 2) Noise substitution: In case of an detected error, concealment copies the last frame and adds - attenuates the spectral data. For this mode you have to set the #CONCEAL_NOISE define. - Noise substitution adds no additional delay. - - 3) Interpolation: The interpolation routine swaps the spectral data from the previous and the - current frame just before the final frequency to time conversion. In case a single frame is - corrupted, concealmant interpolates between the last good and the first good frame to create - the spectral data for the missing frame. If multiple frames are corrupted, concealment - implements first a fade out based on slightly modified spectral values from the last good - frame. As soon as good frames are available, concealmant fades in the new spectral data. - For this mode you have to set the #CONCEAL_INTER define. Note that in this case, you also - need to set #SBR_BS_DELAY_ENABLE, which basically adds approriate delay in the SBR decoder. - Note that the Interpolating-Concealment increases the delay of your decoder by one frame - and that it does require additional resources such as memory and computational complexity. - - <h2>How concealment can be used with errors on the transport layer</h2> - - Many errors can or have to be detected on the transport layer. For example in IP based systems - packet loss can occur. The transport protocol used should indicate such packet loss by inserting - an empty frame with frameOK=0. -*/ - -#include "conceal.h" - -#include "aac_rom.h" -#include "genericStds.h" - - -/* PNS (of block) */ -#include "aacdec_pns.h" -#include "block.h" - -#include "FDK_tools_rom.h" - -#define CONCEAL_DFLT_COMF_NOISE_LEVEL ( 46 ) /* ~= -70 dB */ - - -/* default settings */ -#define CONCEAL_DFLT_FADEOUT_FRAMES ( 5 ) -#define CONCEAL_DFLT_FADEIN_FRAMES ( 5 ) -#define CONCEAL_DFLT_MUTE_RELEASE_FRAMES ( 3 ) - -#define CONCEAL_DFLT_FADE_FACTOR ( 0.707106781186548f ) /* 1/sqrt(2) */ - -/* some often used constants: */ -#define FIXP_ZERO FL2FXCONST_DBL(0.0f) -#define FIXP_ONE FL2FXCONST_DBL(1.0f) -#define FIXP_FL_CORRECTION FL2FXCONST_DBL(0.53333333333333333f) - -/* For parameter conversion */ -#define CONCEAL_PARAMETER_BITS ( 8 ) -#define CONCEAL_MAX_QUANT_FACTOR ( (1<<CONCEAL_PARAMETER_BITS)-1 ) -/*#define CONCEAL_MIN_ATTENUATION_FACTOR_025 ( FL2FXCONST_DBL(0.971627951577106174) )*/ /* -0.25 dB */ -#define CONCEAL_MIN_ATTENUATION_FACTOR_025_LD FL2FXCONST_DBL(-0.041524101186092029596853445212299) -/*#define CONCEAL_MIN_ATTENUATION_FACTOR_050 ( FL2FXCONST_DBL(0.944060876285923380) )*/ /* -0.50 dB */ -#define CONCEAL_MIN_ATTENUATION_FACTOR_050_LD FL2FXCONST_DBL(-0.083048202372184059253597008145293) - -typedef enum { - CConcealment_NoExpand, - CConcealment_Expand, - CConcealment_Compress -} -CConcealmentExpandType; - -static const FIXP_SGL facMod4Table[4] = { - FL2FXCONST_SGL(0.500000000f), /* FIXP_SGL(0x4000), 2^-(1-0,00) */ - FL2FXCONST_SGL(0.594603558f), /* FIXP_SGL(0x4c1b), 2^-(1-0,25) */ - FL2FXCONST_SGL(0.707106781f), /* FIXP_SGL(0x5a82), 2^-(1-0,50) */ - FL2FXCONST_SGL(0.840896415f) /* FIXP_SGL(0x6ba2) 2^-(1-0,75) */ -}; - - - - -static void - CConcealment_CalcBandEnergy ( - FIXP_DBL *spectrum, - const SamplingRateInfo *pSamplingRateInfo, - const int blockType, - CConcealmentExpandType ex, - int *sfbEnergy - ); - -static void - CConcealment_InterpolateBuffer ( - FIXP_DBL *spectrum, - SHORT *pSpecScalePrev, - SHORT *pSpecScaleAct, - SHORT *pSpecScaleOut, - int *enPrv, - int *enAct, - int sfbCnt, - const SHORT *pSfbOffset - ); - -static int - CConcealment_ApplyInter ( - CConcealmentInfo *pConcealmentInfo, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - const SamplingRateInfo *pSamplingRateInfo, - const int samplesPerFrame, - const int improveTonal, - const int frameOk - ); - - - -static int - CConcealment_ApplyNoise ( - CConcealmentInfo *pConcealmentInfo, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo, - const SamplingRateInfo *pSamplingRateInfo, - const int samplesPerFrame, - const UINT flags - ); - -static void - CConcealment_UpdateState ( - CConcealmentInfo *pConcealmentInfo, - int frameOk - ); - -static void - CConcealment_ApplyRandomSign ( - int iRandomPhase, - FIXP_DBL *spec, - int samplesPerFrame - ); - - -static int CConcealment_GetWinSeq(int prevWinSeq) -{ - int newWinSeq = OnlyLongSequence; - - /* Try to have only long blocks */ - if ( prevWinSeq == LongStartSequence - || prevWinSeq == EightShortSequence ) - { - newWinSeq = LongStopSequence; - } - - return (newWinSeq); -} - - -/*! - \brief Init common concealment information data - - \pConcealCommonData Pointer to the concealment common data structure. - - \return none -*/ -void - CConcealment_InitCommonData (CConcealParams *pConcealCommonData) -{ - if (pConcealCommonData != NULL) - { - int i; - - /* Set default error concealment technique */ - pConcealCommonData->method = ConcealMethodInter; - - pConcealCommonData->numFadeOutFrames = CONCEAL_DFLT_FADEOUT_FRAMES; - pConcealCommonData->numFadeInFrames = CONCEAL_DFLT_FADEIN_FRAMES; - pConcealCommonData->numMuteReleaseFrames = CONCEAL_DFLT_MUTE_RELEASE_FRAMES; - - pConcealCommonData->comfortNoiseLevel = CONCEAL_DFLT_COMF_NOISE_LEVEL; - - /* Init fade factors (symetric) */ - pConcealCommonData->fadeOutFactor[0] = FL2FXCONST_SGL( CONCEAL_DFLT_FADE_FACTOR ); - pConcealCommonData->fadeInFactor[0] = pConcealCommonData->fadeOutFactor[0]; - - for (i = 1; i < CONCEAL_MAX_NUM_FADE_FACTORS; i++) { - pConcealCommonData->fadeOutFactor[i] = FX_DBL2FX_SGL(fMult(pConcealCommonData->fadeOutFactor[i-1],FL2FXCONST_SGL(CONCEAL_DFLT_FADE_FACTOR))); - pConcealCommonData->fadeInFactor[i] = pConcealCommonData->fadeOutFactor[i]; - } - } -} - - - -/*! - \brief Get current concealment method. - - \pConcealCommonData Pointer to common concealment data (for all channels) - - \return Concealment method. -*/ -CConcealmentMethod - CConcealment_GetMethod( CConcealParams *pConcealCommonData ) -{ - CConcealmentMethod method = ConcealMethodNone; - - if (pConcealCommonData != NULL) { - method = pConcealCommonData->method; - } - - return (method); -} - - -/*! - \brief Init concealment information for each channel - - The function initializes the concealment information. Two methods can be chosen: - 0 = interpolation method (adds delay) - 1 = noise substitution (no delay, low complexity) - - \return none -*/ -void - CConcealment_InitChannelData ( - CConcealmentInfo *pConcealChannelInfo, - CConcealParams *pConcealCommonData, - int samplesPerFrame ) -{ - int i; - - pConcealChannelInfo->pConcealParams = pConcealCommonData; - - FDKmemclear(pConcealChannelInfo->spectralCoefficient, 1024 * sizeof(FIXP_CNCL)); - - for (i = 0; i < 8; i++) { - pConcealChannelInfo->specScale[i] = 0; - } - - pConcealChannelInfo->iRandomPhase = 0; - - pConcealChannelInfo->windowSequence = 0; - pConcealChannelInfo->windowShape = 0; - - pConcealChannelInfo->prevFrameOk[0] = 1; - pConcealChannelInfo->prevFrameOk[1] = 1; - - pConcealChannelInfo->cntFadeFrames = 0; - pConcealChannelInfo->cntValidFrames = 0; - - pConcealChannelInfo->concealState = ConcealState_Ok; - -} - - -/*! - \brief Set error concealment parameters - - \concealParams - \method - \fadeOutSlope - \fadeInSlope - \muteRelease - \comfNoiseLevel - - \return none -*/ -AAC_DECODER_ERROR - CConcealment_SetParams ( - CConcealParams *concealParams, - int method, - int fadeOutSlope, - int fadeInSlope, - int muteRelease, - int comfNoiseLevel ) -{ - /* set concealment technique */ - if (method != AACDEC_CONCEAL_PARAM_NOT_SPECIFIED) { - switch ((CConcealmentMethod)method) - { - case ConcealMethodMute: - case ConcealMethodNoise: - case ConcealMethodInter: - /* Be sure to enable delay adjustment of SBR decoder! */ - if (concealParams == NULL) { - return AAC_DEC_INVALID_HANDLE; - } else { - /* set param */ - concealParams->method = (CConcealmentMethod)method; - } - break; - - default: - return AAC_DEC_SET_PARAM_FAIL; - } - } - - /* set number of frames for fade-out slope */ - if (fadeOutSlope != AACDEC_CONCEAL_PARAM_NOT_SPECIFIED) { - if ( (fadeOutSlope < CONCEAL_MAX_NUM_FADE_FACTORS) - && (fadeOutSlope >= 0) ) - { - if (concealParams == NULL) { - return AAC_DEC_INVALID_HANDLE; - } else { - /* set param */ - concealParams->numFadeOutFrames = fadeOutSlope; - } - } else { - return AAC_DEC_SET_PARAM_FAIL; - } - } - - /* set number of frames for fade-in slope */ - if (fadeInSlope != AACDEC_CONCEAL_PARAM_NOT_SPECIFIED) { - if ( (fadeInSlope < CONCEAL_MAX_NUM_FADE_FACTORS) - && (fadeInSlope >= 1) ) - { - if (concealParams == NULL) { - return AAC_DEC_INVALID_HANDLE; - } else { - /* set param */ - concealParams->numFadeInFrames = fadeInSlope; - } - } else { - return AAC_DEC_SET_PARAM_FAIL; - } - } - - /* set number of error-free frames after which the muting will be released */ - if (muteRelease != AACDEC_CONCEAL_PARAM_NOT_SPECIFIED) { - if ( (muteRelease < (CONCEAL_MAX_NUM_FADE_FACTORS<<1)) - && (muteRelease >= 0) ) - { - if (concealParams == NULL) { - return AAC_DEC_INVALID_HANDLE; - } else { - /* set param */ - concealParams->numMuteReleaseFrames = muteRelease; - } - } else { - return AAC_DEC_SET_PARAM_FAIL; - } - } - - /* set confort noise level which will be inserted while in state 'muting' */ - if (comfNoiseLevel != AACDEC_CONCEAL_PARAM_NOT_SPECIFIED) { - if ( (comfNoiseLevel < -1) - || (comfNoiseLevel > 127) ) { - return AAC_DEC_SET_PARAM_FAIL; - } - if (concealParams == NULL) { - return AAC_DEC_INVALID_HANDLE; - } else { - concealParams->comfortNoiseLevel = comfNoiseLevel; - } - } - - return (AAC_DEC_OK); -} - - -/*! - \brief Set fade-out/in attenuation factor vectors - - \concealParams - \fadeOutAttenuationVector - \fadeInAttenuationVector - - \return 0 if OK all other values indicate errors -*/ -AAC_DECODER_ERROR - CConcealment_SetAttenuation ( - CConcealParams *concealParams, - SHORT *fadeOutAttenuationVector, - SHORT *fadeInAttenuationVector ) -{ - if ( (fadeOutAttenuationVector == NULL) - && (fadeInAttenuationVector == NULL) ) { - return AAC_DEC_SET_PARAM_FAIL; - } - - /* Fade-out factors */ - if (fadeOutAttenuationVector != NULL) - { - int i; - - /* check quantized factors first */ - for (i = 0; i < CONCEAL_MAX_NUM_FADE_FACTORS; i++) { - if ((fadeOutAttenuationVector[i] < 0) || (fadeOutAttenuationVector[i] > CONCEAL_MAX_QUANT_FACTOR)) { - return AAC_DEC_SET_PARAM_FAIL; - } - } - if (concealParams == NULL) { - return AAC_DEC_INVALID_HANDLE; - } - - /* now dequantize factors */ - for (i = 0; i < CONCEAL_MAX_NUM_FADE_FACTORS; i++) - { - concealParams->fadeOutFactor[i] = - FX_DBL2FX_SGL( fLdPow( CONCEAL_MIN_ATTENUATION_FACTOR_025_LD, - 0, - (FIXP_DBL)((INT)(FL2FXCONST_DBL(1.0/2.0)>>(CONCEAL_PARAMETER_BITS-1)) * (INT)fadeOutAttenuationVector[i]), - CONCEAL_PARAMETER_BITS - ) - ); - } - } - - /* Fade-in factors */ - if (fadeInAttenuationVector != NULL) - { - int i; - - /* check quantized factors first */ - for (i = 0; i < CONCEAL_MAX_NUM_FADE_FACTORS; i++) { - if ((fadeInAttenuationVector[i] < 0) || (fadeInAttenuationVector[i] > CONCEAL_MAX_QUANT_FACTOR)) { - return AAC_DEC_SET_PARAM_FAIL; - } - } - if (concealParams == NULL) { - return AAC_DEC_INVALID_HANDLE; - } - - /* now dequantize factors */ - for (i = 0; i < CONCEAL_MAX_NUM_FADE_FACTORS; i++) - { - concealParams->fadeInFactor[i] = - FX_DBL2FX_SGL( fLdPow( CONCEAL_MIN_ATTENUATION_FACTOR_025_LD, - 0, - (FIXP_DBL)((INT)(FIXP_ONE>>CONCEAL_PARAMETER_BITS) * (INT)fadeInAttenuationVector[i]), - CONCEAL_PARAMETER_BITS - ) - ); - } - } - - return (AAC_DEC_OK); -} - - -/*! - \brief Get state of concealment module. - - \pConcealChannelInfo - - \return Concealment state. -*/ -CConcealmentState - CConcealment_GetState ( - CConcealmentInfo *pConcealChannelInfo - ) -{ - CConcealmentState state = ConcealState_Ok; - - if (pConcealChannelInfo != NULL) { - state = pConcealChannelInfo->concealState; - } - - return (state); -} - - -static void CConcealment_fakePnsData ( - CPnsData *pPnsData, - CIcsInfo *pIcsInfo, - const SamplingRateInfo *pSamplingRateInfo, - SHORT *pSpecScale, - SHORT *pScaleFactor, - const int level ) -{ - CPnsInterChannelData *pInterChannelData = pPnsData->pPnsInterChannelData; - - int pnsBand, band, group, win; - //int delta = 0; - int windowsPerFrame = GetWindowsPerFrame(pIcsInfo); - int refLevel = (windowsPerFrame > 1) ? 82 : 91; - - FDK_ASSERT(level >= 0 && level <= 127); - - for (win = 0; win < windowsPerFrame; win++) { - pSpecScale[win] = 31; - } - - /* fake ICS info if necessary */ - if (!IsValid(pIcsInfo)) { - pIcsInfo->WindowGroups = 1; - if (IsLongBlock(pIcsInfo)) { - pIcsInfo->TotalSfBands = pSamplingRateInfo->NumberOfScaleFactorBands_Long; - pIcsInfo->WindowGroupLength[0] = 1; - } - else { - pIcsInfo->TotalSfBands = pSamplingRateInfo->NumberOfScaleFactorBands_Short; - pIcsInfo->WindowGroupLength[0] = 8; - } - pIcsInfo->MaxSfBands = pIcsInfo->TotalSfBands; - } - - /* global activate PNS */ - pPnsData->PnsActive = 1; - /* set energy level */ - pPnsData->CurrentEnergy = fixMax( 0, refLevel - level ); - - /* - value: | Avg. RMS power | Avg. RMS power | - | specScale = 22 | specScale = 31 | - -------+----------------+----------------+ - 5 | | -99.0 dB - 15 | | -90.0 dB - 25 | | -89.7 dB - 35 | | -85.3 dB - ... | ... | ... - 45 | -69.9 dB | -70.0 dB - 50 | -62.2 dB | - 55 | -55.6 dB | -54.6 dB - 60 | -47.0 dB | - 65 | -39.5 dB | -39.5 dB - 70 | -31.9 dB | - 75 | -24.4 dB | -24.4 dB - 80 | -16.9 dB | - 85 | -9.4 dB (c) | -9.4 dB - 90 | -3.9 dB (c) | - 95 | | -2.1 dB - 100 | | -1.6 dB - 105 | | -1.4 dB - */ - - for (group=0; group < GetWindowGroups(pIcsInfo); group++) - { - for (band=0; band < GetScaleFactorBandsTransmitted(pIcsInfo); band++) - { - pnsBand = group * 16 + band; - - if (pnsBand >= NO_OFBANDS) { - return; - } - //pPnsData->CurrentEnergy += delta ; - pScaleFactor[pnsBand] = pPnsData->CurrentEnergy; - pInterChannelData->correlated[pnsBand] = 0; - pPnsData->pnsUsed[pnsBand] = 1; - } - } -} - - -/*! - \brief Store data for concealment techniques applied later - - Interface function to store data for different concealment strategies - - \return none - */ -void - CConcealment_Store ( - CConcealmentInfo *hConcealmentInfo, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo ) -{ - if ( !(pAacDecoderChannelInfo->renderMode == AACDEC_RENDER_LPD - ) ) - { - FIXP_DBL *pSpectralCoefficient = SPEC_LONG(pAacDecoderChannelInfo->pSpectralCoefficient); - SHORT *pSpecScale = pAacDecoderChannelInfo->specScale; - CIcsInfo *pIcsInfo = &pAacDecoderChannelInfo->icsInfo; - - SHORT tSpecScale[8]; - UCHAR tWindowShape, tWindowSequence; - - /* store old window infos for swapping */ - tWindowSequence = hConcealmentInfo->windowSequence; - tWindowShape = hConcealmentInfo->windowShape; - - /* store old scale factors for swapping */ - FDKmemcpy(tSpecScale, hConcealmentInfo->specScale, 8*sizeof(SHORT)); - - /* store new window infos */ - hConcealmentInfo->windowSequence = GetWindowSequence(pIcsInfo); - hConcealmentInfo->windowShape = GetWindowShape(pIcsInfo); - hConcealmentInfo->lastWinGrpLen = *(GetWindowGroupLengthTable(pIcsInfo)+GetWindowGroups(pIcsInfo)-1); - - /* store new scale factors */ - FDKmemcpy(hConcealmentInfo->specScale, pSpecScale, 8*sizeof(SHORT)); - - if (CConcealment_GetDelay(hConcealmentInfo->pConcealParams) == 0) - { - /* store new spectral bins */ -#if (CNCL_FRACT_BITS == DFRACT_BITS) - FDKmemcpy(hConcealmentInfo->spectralCoefficient, pSpectralCoefficient, 1024 * sizeof(FIXP_CNCL)); -#else - FIXP_CNCL *RESTRICT pCncl = &hConcealmentInfo->spectralCoefficient[1024-1]; - FIXP_DBL *RESTRICT pSpec = &pSpectralCoefficient[1024-1]; - int i; - - for (i = 1024; i != 0; i--) { - *pCncl-- = FX_DBL2FX_CNCL(*pSpec--); - } -#endif - } - else - { - FIXP_CNCL *RESTRICT pCncl = &hConcealmentInfo->spectralCoefficient[1024-1]; - FIXP_DBL *RESTRICT pSpec = &pSpectralCoefficient[1024-1]; - int i; - - /* swap spectral data */ - for (i = 1024; i != 0; i--) { - FIXP_DBL tSpec = *pSpec; - *pSpec-- = FX_CNCL2FX_DBL(*pCncl); - *pCncl-- = FX_DBL2FX_CNCL( tSpec); - } - - /* complete swapping of window infos */ - pIcsInfo->WindowSequence = tWindowSequence; - pIcsInfo->WindowShape = tWindowShape; - - /* complete swapping of scale factors */ - FDKmemcpy(pSpecScale, tSpecScale, 8*sizeof(SHORT)); - } - } - -} - - -/*! - \brief Apply concealment - - Interface function to different concealment strategies - - \return none - */ -int - CConcealment_Apply ( - CConcealmentInfo *hConcealmentInfo, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo, - const SamplingRateInfo *pSamplingRateInfo, - const int samplesPerFrame, - const UCHAR lastLpdMode, - const int frameOk, - const UINT flags) -{ - int appliedProcessing = 0; - - if ( (frameOk == 0) - && (pAacDecoderChannelInfo->renderMode != (AACDEC_RENDER_MODE)hConcealmentInfo->lastRenderMode) ) { - /* restore the last render mode to stay in the same domain which allows to do a proper concealment */ - pAacDecoderChannelInfo->renderMode = (AACDEC_RENDER_MODE)hConcealmentInfo->lastRenderMode; - } else { - /* otherwise store the current mode */ - hConcealmentInfo->lastRenderMode = (SCHAR)pAacDecoderChannelInfo->renderMode; - } - - if ( frameOk ) - { - /* Rescue current data for concealment in future frames */ - CConcealment_Store ( hConcealmentInfo, - pAacDecoderChannelInfo, - pAacDecoderStaticChannelInfo ); - /* Reset index to random sign vector to make sign calculation frame agnostic - (only depends on number of subsequently concealed spectral blocks) */ - hConcealmentInfo->iRandomPhase = 0; - } - - /* hand current frame status to the state machine */ - CConcealment_UpdateState( hConcealmentInfo, - frameOk ); - - if ( !frameOk ) - { - /* Create data for signal rendering according to the selected concealment method and decoder operating mode. */ - - - if ( !(pAacDecoderChannelInfo->renderMode == AACDEC_RENDER_LPD - ) - ) - { - switch (hConcealmentInfo->pConcealParams->method) - { - default: - case ConcealMethodMute: - /* Mute spectral data in case of errors */ - FDKmemclear(pAacDecoderChannelInfo->pSpectralCoefficient, samplesPerFrame * sizeof(FIXP_DBL)); - /* Set last window shape */ - pAacDecoderChannelInfo->icsInfo.WindowShape = hConcealmentInfo->windowShape; - appliedProcessing = 1; - break; - - case ConcealMethodNoise: - /* Noise substitution error concealment technique */ - appliedProcessing = - CConcealment_ApplyNoise (hConcealmentInfo, - pAacDecoderChannelInfo, - pAacDecoderStaticChannelInfo, - pSamplingRateInfo, - samplesPerFrame, - flags); - break; - - case ConcealMethodInter: - /* Energy interpolation concealment based on 3GPP */ - appliedProcessing = - CConcealment_ApplyInter (hConcealmentInfo, - pAacDecoderChannelInfo, - pSamplingRateInfo, - samplesPerFrame, - 0, /* don't use tonal improvement */ - 0); - break; - - } - } - } - /* update history */ - hConcealmentInfo->prevFrameOk[0] = hConcealmentInfo->prevFrameOk[1]; - hConcealmentInfo->prevFrameOk[1] = frameOk; - - return appliedProcessing; -} - -/*! -\brief Apply concealment noise substitution - - In case of frame lost this function produces a noisy frame with respect to the - energies values of past frame. - -\return none - */ -static int - CConcealment_ApplyNoise (CConcealmentInfo *pConcealmentInfo, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo, - const SamplingRateInfo *pSamplingRateInfo, - const int samplesPerFrame, - const UINT flags) -{ - CConcealParams *pConcealCommonData = pConcealmentInfo->pConcealParams; - - FIXP_DBL *pSpectralCoefficient = SPEC_LONG(pAacDecoderChannelInfo->pSpectralCoefficient); - SHORT *pSpecScale = pAacDecoderChannelInfo->specScale; - CIcsInfo *pIcsInfo = &pAacDecoderChannelInfo->icsInfo; - - int appliedProcessing = 0; - - FDK_ASSERT((samplesPerFrame>=480) && (samplesPerFrame<=1024)); - FDK_ASSERT((samplesPerFrame&0x1F) == 0); - - switch (pConcealmentInfo->concealState) - { - case ConcealState_Ok: - /* Nothing to do here! */ - break; - - case ConcealState_Single: - case ConcealState_FadeOut: - { - /* restore frequency coefficients from buffer with a specific muting */ - FIXP_SGL fac; - int win, numWindows = 1; - int windowLen = samplesPerFrame; - int tFadeFrames, lastWindow = 0; - int win_idx_stride = 1; - - FDK_ASSERT(pConcealmentInfo != NULL); - FDK_ASSERT(pConcealmentInfo->cntFadeFrames >= 0); - FDK_ASSERT(pConcealmentInfo->cntFadeFrames < CONCEAL_MAX_NUM_FADE_FACTORS); - FDK_ASSERT(pConcealmentInfo->cntFadeFrames <= pConcealCommonData->numFadeOutFrames); - - /* get attenuation factor */ - tFadeFrames = pConcealmentInfo->cntFadeFrames; - fac = pConcealCommonData->fadeOutFactor[tFadeFrames]; - - /* set old window parameters */ - { - pIcsInfo->WindowShape = pConcealmentInfo->windowShape; - pIcsInfo->WindowSequence = pConcealmentInfo->windowSequence; - - if (pConcealmentInfo->windowSequence == 2) { - /* short block handling */ - numWindows = 8; - windowLen = samplesPerFrame >> 3; - lastWindow = numWindows - pConcealmentInfo->lastWinGrpLen; - } - } - - for (win = 0; win < numWindows; win++) { - FIXP_CNCL *pCncl = pConcealmentInfo->spectralCoefficient + (lastWindow * windowLen); - FIXP_DBL *pOut = pSpectralCoefficient + (win * windowLen); - int i; - - FDK_ASSERT((lastWindow * windowLen + windowLen) <= samplesPerFrame); - - /* restore frequency coefficients from buffer with a specific attenuation */ - for (i = 0; i < windowLen; i++) { - pOut[i] = fMult(pCncl[i], fac); - } - - /* apply random change of sign for spectral coefficients */ - CConcealment_ApplyRandomSign(pConcealmentInfo->iRandomPhase, - pOut, - windowLen ); - - /* Increment random phase index to avoid repetition artifacts. */ - pConcealmentInfo->iRandomPhase = (pConcealmentInfo->iRandomPhase + 1) & (AAC_NF_NO_RANDOM_VAL - 1); - - /* set old scale factors */ - pSpecScale[win*win_idx_stride] = pConcealmentInfo->specScale[win_idx_stride*lastWindow++]; - - if ( (lastWindow >= numWindows) - && (numWindows > 1) ) - { - /* end of sequence -> rewind */ - lastWindow = numWindows - pConcealmentInfo->lastWinGrpLen; - /* update the attenuation factor to get a faster fade-out */ - tFadeFrames += 1; - if (tFadeFrames < pConcealCommonData->numFadeOutFrames) { - fac = pConcealCommonData->fadeOutFactor[tFadeFrames]; - } else { - fac = (FIXP_SGL)0; - } - } - } - - /* store temp vars */ - pConcealmentInfo->cntFadeFrames = tFadeFrames; - appliedProcessing = 1; - } - break; - - case ConcealState_Mute: - { - /* set dummy window parameters */ - pIcsInfo->Valid = 0; /* Trigger the generation of a consitent IcsInfo */ - pIcsInfo->WindowShape = pConcealmentInfo->windowShape; /* Prevent an invalid WindowShape (required for F/T transform) */ - pIcsInfo->WindowSequence = CConcealment_GetWinSeq(pConcealmentInfo->windowSequence); - pConcealmentInfo->windowSequence = pIcsInfo->WindowSequence; /* Store for next frame (spectrum in concealment buffer can't be used at all) */ - - /* mute spectral data */ - FDKmemclear(pSpectralCoefficient, samplesPerFrame * sizeof(FIXP_DBL)); - - if ( !(flags & (AC_USAC|AC_RSVD50)) - && pConcealCommonData->comfortNoiseLevel >= 0 - && pConcealCommonData->comfortNoiseLevel <= 61 /* -90dB */) - { - /* insert comfort noise using PNS */ - CConcealment_fakePnsData ( - &pAacDecoderChannelInfo->data.aac.PnsData, - pIcsInfo, - pSamplingRateInfo, - pAacDecoderChannelInfo->pDynData->aSfbScale, - pAacDecoderChannelInfo->pDynData->aScaleFactor, - pConcealCommonData->comfortNoiseLevel - ); - - CPns_Apply ( - &pAacDecoderChannelInfo->data.aac.PnsData, - pIcsInfo, - pAacDecoderChannelInfo->pSpectralCoefficient, - pAacDecoderChannelInfo->specScale, - pAacDecoderChannelInfo->pDynData->aScaleFactor, - pSamplingRateInfo, - pAacDecoderChannelInfo->granuleLength, - 0 /* always apply to first channel */ - ); - } - appliedProcessing = 1; - } - break; - - case ConcealState_FadeIn: - { - FDK_ASSERT(pConcealmentInfo->cntFadeFrames >= 0); - FDK_ASSERT(pConcealmentInfo->cntFadeFrames < CONCEAL_MAX_NUM_FADE_FACTORS); - FDK_ASSERT(pConcealmentInfo->cntFadeFrames < pConcealCommonData->numFadeInFrames); - - /* attenuate signal to get a smooth fade-in */ - FIXP_DBL *RESTRICT pOut = &pSpectralCoefficient[samplesPerFrame-1]; - FIXP_SGL fac = pConcealCommonData->fadeInFactor[pConcealmentInfo->cntFadeFrames]; - int i; - - for (i = samplesPerFrame; i != 0; i--) { - *pOut = fMult(*pOut, fac); - pOut--; - } - appliedProcessing = 1; - } - break; - - default: - /* we shouldn't come here anyway */ - FDK_ASSERT(0); - break; - } - - return appliedProcessing; -} - - -/*! - \brief Apply concealment interpolation - - The function swaps the data from the current and the previous frame. If an - error has occured, frame interpolation is performed to restore the missing - frame. In case of multiple faulty frames, fade-in and fade-out is applied. - - \return none -*/ -static int - CConcealment_ApplyInter ( - CConcealmentInfo *pConcealmentInfo, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - const SamplingRateInfo *pSamplingRateInfo, - const int samplesPerFrame, - const int improveTonal, - const int frameOk ) -{ - CConcealParams *pConcealCommonData = pConcealmentInfo->pConcealParams; - - FIXP_DBL *pSpectralCoefficient = SPEC_LONG(pAacDecoderChannelInfo->pSpectralCoefficient); - CIcsInfo *pIcsInfo = &pAacDecoderChannelInfo->icsInfo; - SHORT *pSpecScale = pAacDecoderChannelInfo->specScale; - - - int sfbEnergyPrev[64]; - int sfbEnergyAct [64]; - - int i, appliedProcessing = 0; - - /* clear/init */ - FDKmemclear(sfbEnergyPrev, 64 * sizeof(int)); - FDKmemclear(sfbEnergyAct, 64 * sizeof(int)); - - - if (!frameOk) - { - /* Restore last frame from concealment buffer */ - pIcsInfo->WindowShape = pConcealmentInfo->windowShape; - pIcsInfo->WindowSequence = pConcealmentInfo->windowSequence; - - /* Restore spectral data */ - for (i = 0; i < samplesPerFrame; i++) { - pSpectralCoefficient[i] = FX_CNCL2FX_DBL(pConcealmentInfo->spectralCoefficient[i]); - } - - /* Restore scale factors */ - FDKmemcpy(pSpecScale, pConcealmentInfo->specScale, 8*sizeof(SHORT)); - } - - /* if previous frame was not ok */ - if (!pConcealmentInfo->prevFrameOk[1]) { - - /* if current frame (f_n) is ok and the last but one frame (f_(n-2)) - was ok, too, then interpolate both frames in order to generate - the current output frame (f_(n-1)). Otherwise, use the last stored - frame (f_(n-2) or f_(n-3) or ...). */ - if (frameOk && pConcealmentInfo->prevFrameOk[0]) - { - appliedProcessing = 1; - - - /* Interpolate both frames in order to generate the current output frame (f_(n-1)). */ - if (pIcsInfo->WindowSequence == EightShortSequence) { - /* f_(n-2) == EightShortSequence */ - /* short--??????--short, short--??????--long interpolation */ - /* short--short---short, short---long---long interpolation */ - - int wnd; - - if (pConcealmentInfo->windowSequence == EightShortSequence) { /* f_n == EightShortSequence */ - /* short--short---short interpolation */ - - int scaleFactorBandsTotal = pSamplingRateInfo->NumberOfScaleFactorBands_Short; - const SHORT *pSfbOffset = pSamplingRateInfo->ScaleFactorBands_Short; - pIcsInfo->WindowShape = 1; - pIcsInfo->WindowSequence = EightShortSequence; - - for (wnd = 0; wnd < 8; wnd++) - { - CConcealment_CalcBandEnergy( - &pSpectralCoefficient[wnd * (samplesPerFrame / 8)], /* spec_(n-2) */ - pSamplingRateInfo, - EightShortSequence, - CConcealment_NoExpand, - sfbEnergyPrev); - - CConcealment_CalcBandEnergy( - &pConcealmentInfo->spectralCoefficient[wnd * (samplesPerFrame / 8)], /* spec_n */ - pSamplingRateInfo, - EightShortSequence, - CConcealment_NoExpand, - sfbEnergyAct); - - CConcealment_InterpolateBuffer( - &pSpectralCoefficient[wnd * (samplesPerFrame / 8)], /* spec_(n-1) */ - &pSpecScale[wnd], - &pConcealmentInfo->specScale[wnd], - &pSpecScale[wnd], - sfbEnergyPrev, - sfbEnergyAct, - scaleFactorBandsTotal, - pSfbOffset); - - } - } else { /* f_n != EightShortSequence */ - /* short---long---long interpolation */ - - int scaleFactorBandsTotal = pSamplingRateInfo->NumberOfScaleFactorBands_Long; - const SHORT *pSfbOffset = pSamplingRateInfo->ScaleFactorBands_Long; - SHORT specScaleOut; - - CConcealment_CalcBandEnergy(&pSpectralCoefficient[samplesPerFrame - (samplesPerFrame / 8)], /* [wnd] spec_(n-2) */ - pSamplingRateInfo, - EightShortSequence, - CConcealment_Expand, - sfbEnergyAct); - - CConcealment_CalcBandEnergy(pConcealmentInfo->spectralCoefficient, /* spec_n */ - pSamplingRateInfo, - OnlyLongSequence, - CConcealment_NoExpand, - sfbEnergyPrev); - - pIcsInfo->WindowShape = 0; - pIcsInfo->WindowSequence = LongStopSequence; - - for (i = 0; i < samplesPerFrame ; i++) { - pSpectralCoefficient[i] = pConcealmentInfo->spectralCoefficient[i]; /* spec_n */ - } - - for (i = 0; i < 8; i++) { /* search for max(specScale) */ - if (pSpecScale[i] > pSpecScale[0]) { - pSpecScale[0] = pSpecScale[i]; - } - } - - CConcealment_InterpolateBuffer( - pSpectralCoefficient, /* spec_(n-1) */ - &pConcealmentInfo->specScale[0], - &pSpecScale[0], - &specScaleOut, - sfbEnergyPrev, - sfbEnergyAct, - scaleFactorBandsTotal, - pSfbOffset); - - pSpecScale[0] = specScaleOut; - } - } else { - /* long--??????--short, long--??????--long interpolation */ - /* long---long---short, long---long---long interpolation */ - - int scaleFactorBandsTotal = pSamplingRateInfo->NumberOfScaleFactorBands_Long; - const SHORT *pSfbOffset = pSamplingRateInfo->ScaleFactorBands_Long; - SHORT specScaleAct = pConcealmentInfo->specScale[0]; - - CConcealment_CalcBandEnergy(pSpectralCoefficient, /* spec_(n-2) */ - pSamplingRateInfo, - OnlyLongSequence, - CConcealment_NoExpand, - sfbEnergyPrev); - - if (pConcealmentInfo->windowSequence == EightShortSequence) { /* f_n == EightShortSequence */ - /* long---long---short interpolation */ - - pIcsInfo->WindowShape = 1; - pIcsInfo->WindowSequence = LongStartSequence; - - for (i = 1; i < 8; i++) { /* search for max(specScale) */ - if (pConcealmentInfo->specScale[i] > specScaleAct) { - specScaleAct = pConcealmentInfo->specScale[i]; - } - } - - /* Expand first short spectrum */ - CConcealment_CalcBandEnergy(pConcealmentInfo->spectralCoefficient, /* spec_n */ - pSamplingRateInfo, - EightShortSequence, - CConcealment_Expand, /* !!! */ - sfbEnergyAct); - } else { - /* long---long---long interpolation */ - - pIcsInfo->WindowShape = 0; - pIcsInfo->WindowSequence = OnlyLongSequence; - - CConcealment_CalcBandEnergy(pConcealmentInfo->spectralCoefficient, /* spec_n */ - pSamplingRateInfo, - OnlyLongSequence, - CConcealment_NoExpand, - sfbEnergyAct); - } - - CConcealment_InterpolateBuffer( - pSpectralCoefficient, /* spec_(n-1) */ - &pSpecScale[0], - &specScaleAct, - &pSpecScale[0], - sfbEnergyPrev, - sfbEnergyAct, - scaleFactorBandsTotal, - pSfbOffset); - - } - } - - /* Noise substitution of sign of the output spectral coefficients */ - CConcealment_ApplyRandomSign (pConcealmentInfo->iRandomPhase, - pSpectralCoefficient, - samplesPerFrame); - /* Increment random phase index to avoid repetition artifacts. */ - pConcealmentInfo->iRandomPhase = (pConcealmentInfo->iRandomPhase + 1) & (AAC_NF_NO_RANDOM_VAL - 1); - } - - /* scale spectrum according to concealment state */ - switch (pConcealmentInfo->concealState) - { - case ConcealState_Single: - appliedProcessing = 1; - break; - - case ConcealState_FadeOut: - { - FDK_ASSERT(pConcealmentInfo->cntFadeFrames >= 0); - FDK_ASSERT(pConcealmentInfo->cntFadeFrames < CONCEAL_MAX_NUM_FADE_FACTORS); - FDK_ASSERT(pConcealmentInfo->cntFadeFrames < pConcealCommonData->numFadeOutFrames); - - /* restore frequency coefficients from buffer with a specific muting */ - FIXP_DBL *RESTRICT pOut = &pSpectralCoefficient[samplesPerFrame-1]; - FIXP_SGL fac = pConcealCommonData->fadeOutFactor[pConcealmentInfo->cntFadeFrames]; - - for (i = samplesPerFrame; i != 0; i--) { - *pOut = fMult(*pOut, fac); - pOut--; - } - appliedProcessing = 1; - } - break; - - case ConcealState_FadeIn: - { - FDK_ASSERT(pConcealmentInfo->cntFadeFrames >= 0); - FDK_ASSERT(pConcealmentInfo->cntFadeFrames < CONCEAL_MAX_NUM_FADE_FACTORS); - FDK_ASSERT(pConcealmentInfo->cntFadeFrames < pConcealCommonData->numFadeInFrames); - - /* attenuate signal to get a smooth fade-in */ - FIXP_DBL *RESTRICT pOut = &pSpectralCoefficient[samplesPerFrame-1]; - FIXP_SGL fac = pConcealCommonData->fadeInFactor[pConcealmentInfo->cntFadeFrames]; - - for (i = samplesPerFrame; i != 0; i--) { - *pOut = fMult(*pOut, fac); - pOut--; - } - appliedProcessing = 1; - } - break; - - case ConcealState_Mute: - { - int fac = pConcealCommonData->comfortNoiseLevel; - - /* set dummy window parameters */ - pIcsInfo->Valid = 0; /* Trigger the generation of a consitent IcsInfo */ - pIcsInfo->WindowShape = pConcealmentInfo->windowShape; /* Prevent an invalid WindowShape (required for F/T transform) */ - pIcsInfo->WindowSequence = CConcealment_GetWinSeq(pConcealmentInfo->windowSequence); - pConcealmentInfo->windowSequence = pIcsInfo->WindowSequence; /* Store for next frame (spectrum in concealment buffer can't be used at all) */ - - /* mute spectral data */ - FDKmemclear(pSpectralCoefficient, samplesPerFrame * sizeof(FIXP_DBL)); - - if (fac >= 0 && fac <= 61) { - /* insert comfort noise using PNS */ - CConcealment_fakePnsData ( - &pAacDecoderChannelInfo->data.aac.PnsData, - pIcsInfo, - pSamplingRateInfo, - pAacDecoderChannelInfo->specScale, - pAacDecoderChannelInfo->pDynData->aScaleFactor, - fac - ); - - CPns_Apply ( - &pAacDecoderChannelInfo->data.aac.PnsData, - pIcsInfo, - pAacDecoderChannelInfo->pSpectralCoefficient, - pAacDecoderChannelInfo->specScale, - pAacDecoderChannelInfo->pDynData->aScaleFactor, - pSamplingRateInfo, - pAacDecoderChannelInfo->granuleLength, - 0 /* always apply to first channel */ - ); - } - appliedProcessing = 1; - } - break; - - default: - /* nothing to do here */ - break; - } - - return appliedProcessing; -} - - -/*! - \brief Calculate the spectral energy - - The function calculates band-wise the spectral energy. This is used for - frame interpolation. - - \return none -*/ -static void - CConcealment_CalcBandEnergy ( - FIXP_DBL *spectrum, - const SamplingRateInfo *pSamplingRateInfo, - const int blockType, - CConcealmentExpandType expandType, - int *sfbEnergy ) -{ - const SHORT *pSfbOffset; - int line, sfb, scaleFactorBandsTotal = 0; - - /* In the following calculations, enAccu is initialized with LSB-value in order to avoid zero energy-level */ - - line = 0; - - switch(blockType) { - - case OnlyLongSequence: - case LongStartSequence: - case LongStopSequence: - - if (expandType == CConcealment_NoExpand) { - /* standard long calculation */ - scaleFactorBandsTotal = pSamplingRateInfo->NumberOfScaleFactorBands_Long; - pSfbOffset = pSamplingRateInfo->ScaleFactorBands_Long; - - for (sfb = 0; sfb < scaleFactorBandsTotal; sfb++) { - FIXP_DBL enAccu = (FIXP_DBL)(LONG)1; - int sfbScale = (sizeof(LONG)<<3) - CntLeadingZeros(pSfbOffset[sfb+1] - pSfbOffset[sfb]) - 1; - /* scaling depends on sfb width. */ - for ( ; line < pSfbOffset[sfb+1]; line++) { - enAccu += fPow2Div2(*(spectrum + line)) >> sfbScale; - } - *(sfbEnergy + sfb) = CntLeadingZeros(enAccu) - 1; - } - } - else { - /* compress long to short */ - scaleFactorBandsTotal = pSamplingRateInfo->NumberOfScaleFactorBands_Short; - pSfbOffset = pSamplingRateInfo->ScaleFactorBands_Short; - - for (sfb = 0; sfb < scaleFactorBandsTotal; sfb++) { - FIXP_DBL enAccu = (FIXP_DBL)(LONG)1; - int sfbScale = (sizeof(LONG)<<3) - CntLeadingZeros(pSfbOffset[sfb+1] - pSfbOffset[sfb]) - 1; - /* scaling depends on sfb width. */ - for (; line < pSfbOffset[sfb+1] << 3; line++) { - enAccu += (enAccu + (fPow2Div2(*(spectrum + line)) >> sfbScale)) >> 3; - } - *(sfbEnergy + sfb) = CntLeadingZeros(enAccu) - 1; - } - } - break; - - case EightShortSequence: - - if (expandType == CConcealment_NoExpand) { - /* standard short calculation */ - scaleFactorBandsTotal = pSamplingRateInfo->NumberOfScaleFactorBands_Short; - pSfbOffset = pSamplingRateInfo->ScaleFactorBands_Short; - - for (sfb = 0; sfb < scaleFactorBandsTotal; sfb++) { - FIXP_DBL enAccu = (FIXP_DBL)(LONG)1; - int sfbScale = (sizeof(LONG)<<3) - CntLeadingZeros(pSfbOffset[sfb+1] - pSfbOffset[sfb]) - 1; - /* scaling depends on sfb width. */ - for ( ; line < pSfbOffset[sfb+1]; line++) { - enAccu += fPow2Div2(*(spectrum + line)) >> sfbScale; - } - *(sfbEnergy + sfb) = CntLeadingZeros(enAccu) - 1; - } - } - else { - /* expand short to long spectrum */ - scaleFactorBandsTotal = pSamplingRateInfo->NumberOfScaleFactorBands_Long; - pSfbOffset = pSamplingRateInfo->ScaleFactorBands_Long; - - for (sfb = 0; sfb < scaleFactorBandsTotal; sfb++) { - FIXP_DBL enAccu = (FIXP_DBL)(LONG)1; - int sfbScale = (sizeof(LONG)<<3) - CntLeadingZeros(pSfbOffset[sfb+1] - pSfbOffset[sfb]) - 1; - /* scaling depends on sfb width. */ - for ( ; line < pSfbOffset[sfb+1]; line++) { - enAccu += fPow2Div2(*(spectrum + (line >> 3))) >> sfbScale; - } - *(sfbEnergy + sfb) = CntLeadingZeros(enAccu) - 1; - } - } - break; - } -} - - -/*! - \brief Interpolate buffer - - The function creates the interpolated spectral data according to the - energy of the last good frame and the current (good) frame. - - \return none -*/ -static void - CConcealment_InterpolateBuffer ( - FIXP_DBL *spectrum, - SHORT *pSpecScalePrv, - SHORT *pSpecScaleAct, - SHORT *pSpecScaleOut, - int *enPrv, - int *enAct, - int sfbCnt, - const SHORT *pSfbOffset ) -{ - int sfb, line = 0; - int fac_shift; - int fac_mod; - FIXP_DBL accu; - - for (sfb = 0; sfb < sfbCnt; sfb++) { - - fac_shift = enPrv[sfb] - enAct[sfb] + ((*pSpecScaleAct - *pSpecScalePrv) << 1); - fac_mod = fac_shift & 3; - fac_shift = (fac_shift >> 2) + 1; - fac_shift += *pSpecScalePrv - fixMax(*pSpecScalePrv, *pSpecScaleAct); - - for (; line < pSfbOffset[sfb+1]; line++) { - accu = fMult(*(spectrum+line), facMod4Table[fac_mod]); - if (fac_shift < 0) { - accu >>= -fac_shift; - } else { - accu <<= fac_shift; - } - *(spectrum+line) = accu; - } - } - *pSpecScaleOut = fixMax(*pSpecScalePrv, *pSpecScaleAct); -} - - - - -static INT findEquiFadeFrame ( - CConcealParams *pConcealCommonData, - INT actFadeIndex, - int direction ) -{ - FIXP_SGL *pFactor; - FIXP_SGL referenceVal; - FIXP_SGL minDiff = (FIXP_SGL)MAXVAL_SGL; - - INT numFrames = 0; - INT nextFadeIndex = 0; - - int i; - - /* init depending on direction */ - if (direction == 0) { /* FADE-OUT => FADE-IN */ - numFrames = pConcealCommonData->numFadeInFrames; - referenceVal = pConcealCommonData->fadeOutFactor[actFadeIndex] >> 1; - pFactor = pConcealCommonData->fadeInFactor; - } - else { /* FADE-IN => FADE-OUT */ - numFrames = pConcealCommonData->numFadeOutFrames; - referenceVal = pConcealCommonData->fadeInFactor[actFadeIndex] >> 1; - pFactor = pConcealCommonData->fadeOutFactor; - } - - /* search for minimum difference */ - for (i = 0; i < numFrames; i++) { - FIXP_SGL diff = fixp_abs((pFactor[i]>>1) - referenceVal); - if (diff < minDiff) { - minDiff = diff; - nextFadeIndex = i; - } - } - - /* check and adjust depending on direction */ - if (direction == 0) { /* FADE-OUT => FADE-IN */ - if (((pFactor[nextFadeIndex]>>1) <= referenceVal) && (nextFadeIndex > 0)) { - nextFadeIndex -= 1; - } - } - else { /* FADE-IN => FADE-OUT */ - if (((pFactor[nextFadeIndex]>>1) >= referenceVal) && (nextFadeIndex < numFrames-1)) { - nextFadeIndex += 1; - } - } - - return (nextFadeIndex); -} - - -/*! - \brief Update the concealment state - - The function updates the state of the concealment state-machine. The - states are: mute, fade-in, fade-out, interpolate and frame-ok. - - \return none -*/ -static void - CConcealment_UpdateState ( - CConcealmentInfo *pConcealmentInfo, - int frameOk ) -{ - CConcealParams *pConcealCommonData = pConcealmentInfo->pConcealParams; - - switch (pConcealCommonData->method) - { - case ConcealMethodNoise: - { - if (pConcealmentInfo->concealState != ConcealState_Ok) { - /* count the valid frames during concealment process */ - if (frameOk) { - pConcealmentInfo->cntValidFrames += 1; - } else { - pConcealmentInfo->cntValidFrames = 0; - } - } - - /* -- STATE MACHINE for Noise Substitution -- */ - switch (pConcealmentInfo->concealState) - { - case ConcealState_Ok: - if (!frameOk) { - if (pConcealCommonData->numFadeOutFrames > 0) { - /* change to state SINGLE-FRAME-LOSS */ - pConcealmentInfo->concealState = ConcealState_Single; - } else { - /* change to state MUTE */ - pConcealmentInfo->concealState = ConcealState_Mute; - } - pConcealmentInfo->cntFadeFrames = 0; - pConcealmentInfo->cntValidFrames = 0; - } - break; - - case ConcealState_Single: /* Just a pre-stage before fade-out begins. Stay here only one frame! */ - pConcealmentInfo->cntFadeFrames += 1; - if (frameOk) { - if (pConcealmentInfo->cntValidFrames > pConcealCommonData->numMuteReleaseFrames) { - /* change to state FADE-IN */ - pConcealmentInfo->concealState = ConcealState_FadeIn; - pConcealmentInfo->cntFadeFrames = findEquiFadeFrame( pConcealCommonData, - pConcealmentInfo->cntFadeFrames-1, - 0 /* FadeOut -> FadeIn */); - } else { - /* change to state OK */ - pConcealmentInfo->concealState = ConcealState_Ok; - } - } else { - if (pConcealmentInfo->cntFadeFrames >= pConcealCommonData->numFadeOutFrames) { - /* change to state MUTE */ - pConcealmentInfo->concealState = ConcealState_Mute; - } else { - /* change to state FADE-OUT */ - pConcealmentInfo->concealState = ConcealState_FadeOut; - } - } - break; - - case ConcealState_FadeOut: - pConcealmentInfo->cntFadeFrames += 1; /* used to address the fade-out factors */ - if (pConcealmentInfo->cntValidFrames > pConcealCommonData->numMuteReleaseFrames) { - if (pConcealCommonData->numFadeInFrames > 0) { - /* change to state FADE-IN */ - pConcealmentInfo->concealState = ConcealState_FadeIn; - pConcealmentInfo->cntFadeFrames = findEquiFadeFrame( pConcealCommonData, - pConcealmentInfo->cntFadeFrames-1, - 0 /* FadeOut -> FadeIn */); - } else { - /* change to state OK */ - pConcealmentInfo->concealState = ConcealState_Ok; - } - } else { - if (pConcealmentInfo->cntFadeFrames >= pConcealCommonData->numFadeOutFrames) { - /* change to state MUTE */ - pConcealmentInfo->concealState = ConcealState_Mute; - } - } - break; - - case ConcealState_Mute: - if (pConcealmentInfo->cntValidFrames > pConcealCommonData->numMuteReleaseFrames) { - if (pConcealCommonData->numFadeInFrames > 0) { - /* change to state FADE-IN */ - pConcealmentInfo->concealState = ConcealState_FadeIn; - pConcealmentInfo->cntFadeFrames = pConcealCommonData->numFadeInFrames - 1; - } else { - /* change to state OK */ - pConcealmentInfo->concealState = ConcealState_Ok; - } - } - break; - - case ConcealState_FadeIn: - pConcealmentInfo->cntFadeFrames -= 1; /* used to address the fade-in factors */ - if (frameOk) { - if (pConcealmentInfo->cntFadeFrames < 0) { - /* change to state OK */ - pConcealmentInfo->concealState = ConcealState_Ok; - } - } else { - if (pConcealCommonData->numFadeOutFrames > 0) { - /* change to state FADE-OUT */ - pConcealmentInfo->concealState = ConcealState_FadeOut; - pConcealmentInfo->cntFadeFrames = findEquiFadeFrame( pConcealCommonData, - pConcealmentInfo->cntFadeFrames+1, - 1 /* FadeIn -> FadeOut */); - } else { - /* change to state MUTE */ - pConcealmentInfo->concealState = ConcealState_Mute; - } - } - break; - - default: - FDK_ASSERT(0); - break; - } - } - break; - - case ConcealMethodInter: - case ConcealMethodTonal: - { - if (pConcealmentInfo->concealState != ConcealState_Ok) { - /* count the valid frames during concealment process */ - if ( pConcealmentInfo->prevFrameOk[1] || - (pConcealmentInfo->prevFrameOk[0] && !pConcealmentInfo->prevFrameOk[1] && frameOk) ) { - /* The frame is OK even if it can be estimated by the energy interpolation algorithm */ - pConcealmentInfo->cntValidFrames += 1; - } else { - pConcealmentInfo->cntValidFrames = 0; - } - } - - /* -- STATE MACHINE for energy interpolation -- */ - switch (pConcealmentInfo->concealState) - { - case ConcealState_Ok: - if (!(pConcealmentInfo->prevFrameOk[1] || - (pConcealmentInfo->prevFrameOk[0] && !pConcealmentInfo->prevFrameOk[1] && frameOk))) { - if (pConcealCommonData->numFadeOutFrames > 0) { - /* Fade out only if the energy interpolation algorithm can not be applied! */ - pConcealmentInfo->concealState = ConcealState_FadeOut; - } else { - /* change to state MUTE */ - pConcealmentInfo->concealState = ConcealState_Mute; - } - pConcealmentInfo->cntFadeFrames = 0; - pConcealmentInfo->cntValidFrames = 0; - } - break; - - case ConcealState_Single: - pConcealmentInfo->concealState = ConcealState_Ok; - break; - - case ConcealState_FadeOut: - pConcealmentInfo->cntFadeFrames += 1; - - if (pConcealmentInfo->cntValidFrames > pConcealCommonData->numMuteReleaseFrames) { - if (pConcealCommonData->numFadeInFrames > 0) { - /* change to state FADE-IN */ - pConcealmentInfo->concealState = ConcealState_FadeIn; - pConcealmentInfo->cntFadeFrames = findEquiFadeFrame( pConcealCommonData, - pConcealmentInfo->cntFadeFrames-1, - 0 /* FadeOut -> FadeIn */); - } else { - /* change to state OK */ - pConcealmentInfo->concealState = ConcealState_Ok; - } - } else { - if (pConcealmentInfo->cntFadeFrames >= pConcealCommonData->numFadeOutFrames) { - /* change to state MUTE */ - pConcealmentInfo->concealState = ConcealState_Mute; - } - } - break; - - case ConcealState_Mute: - if (pConcealmentInfo->cntValidFrames > pConcealCommonData->numMuteReleaseFrames) { - if (pConcealCommonData->numFadeInFrames > 0) { - /* change to state FADE-IN */ - pConcealmentInfo->concealState = ConcealState_FadeIn; - pConcealmentInfo->cntFadeFrames = pConcealCommonData->numFadeInFrames - 1; - } else { - /* change to state OK */ - pConcealmentInfo->concealState = ConcealState_Ok; - } - } - break; - - case ConcealState_FadeIn: - pConcealmentInfo->cntFadeFrames -= 1; /* used to address the fade-in factors */ - - if (frameOk || pConcealmentInfo->prevFrameOk[1]) { - if (pConcealmentInfo->cntFadeFrames < 0) { - /* change to state OK */ - pConcealmentInfo->concealState = ConcealState_Ok; - } - } else { - if (pConcealCommonData->numFadeOutFrames > 0) { - /* change to state FADE-OUT */ - pConcealmentInfo->concealState = ConcealState_FadeOut; - pConcealmentInfo->cntFadeFrames = findEquiFadeFrame( pConcealCommonData, - pConcealmentInfo->cntFadeFrames+1, - 1 /* FadeIn -> FadeOut */); - } else { - /* change to state MUTE */ - pConcealmentInfo->concealState = ConcealState_Mute; - } - } - break; - } /* End switch(pConcealmentInfo->concealState) */ - } - break; - - default: - /* Don't need a state machine for other concealment methods. */ - break; - } - -} - - -/*! -\brief Randomizes the sign of the spectral data - - The function toggles the sign of the spectral data randomly. This is - useful to ensure the quality of the concealed frames. - -\return none - */ -static -void CConcealment_ApplyRandomSign (int randomPhase, - FIXP_DBL *spec, - int samplesPerFrame - ) -{ - int i; - USHORT packedSign=0; - - /* random table 512x16bit has been reduced to 512 packed sign bits = 32x16 bit */ - - /* read current packed sign word */ - packedSign = randomSign[randomPhase>>4]; - packedSign >>= (randomPhase&0xf); - - for (i = 0; i < samplesPerFrame ; i++) { - if ((randomPhase & 0xf) == 0) { - packedSign = randomSign[randomPhase>>4]; - } - - if (packedSign & 0x1) { - spec[i] = -spec[i]; - } - packedSign >>= 1; - - randomPhase = (randomPhase + 1) & (AAC_NF_NO_RANDOM_VAL - 1); - } -} - - -/*! - \brief Get fadeing factor for current concealment state. - - The function returns the factor used for fading that belongs to the current internal state. - - \return Fade factor - */ -FIXP_DBL - CConcealment_GetFadeFactor ( - CConcealmentInfo *hConcealmentInfo, - const int fPreviousFactor - ) -{ - FIXP_DBL fac = (FIXP_DBL)0; - - CConcealParams *pConcealCommonData = hConcealmentInfo->pConcealParams; - - if (hConcealmentInfo->pConcealParams->method > ConcealMethodMute) { - switch (hConcealmentInfo->concealState) { - default: - case ConcealState_Mute: - /* Nothing to do here */ - break; - case ConcealState_Ok: - fac = (FIXP_DBL)MAXVAL_DBL; - break; - case ConcealState_Single: - case ConcealState_FadeOut: - { - int idx = hConcealmentInfo->cntFadeFrames - ((fPreviousFactor != 0) ? 1 : 0); - fac = (idx < 0) ? (FIXP_DBL)MAXVAL_DBL : FX_SGL2FX_DBL(pConcealCommonData->fadeOutFactor[idx]); - } - break; - case ConcealState_FadeIn: - { - int idx = hConcealmentInfo->cntFadeFrames + ((fPreviousFactor != 0) ? 1 : 0); - fac = (idx >= hConcealmentInfo->pConcealParams->numFadeInFrames) ? (FIXP_DBL)0 : FX_SGL2FX_DBL(pConcealCommonData->fadeInFactor[idx]); - } - break; - } - } - - return (fac); -} - - -/*! - \brief Get fadeing factor for current concealment state. - - The function returns the state (ok or not) of the previous frame. - If called before the function CConcealment_Apply() set the fBeforeApply - flag to get the correct value. - - \return Frame OK flag of previous frame. - */ -int - CConcealment_GetLastFrameOk ( - CConcealmentInfo *hConcealmentInfo, - const int fBeforeApply - ) -{ - int prevFrameOk = 1; - - if (hConcealmentInfo != NULL) { - prevFrameOk = hConcealmentInfo->prevFrameOk[fBeforeApply & 0x1]; - } - - return prevFrameOk; -} - -/*! - \brief Get the number of delay frames introduced by concealment technique. - - \return Number of delay frames. - */ -UINT - CConcealment_GetDelay ( - CConcealParams *pConcealCommonData - ) -{ - UINT frameDelay = 0; - - if (pConcealCommonData != NULL) { - switch (pConcealCommonData->method) { - case ConcealMethodTonal: - case ConcealMethodInter: - frameDelay = 1; - break; - default: - break; - } - } - - return frameDelay; -} - diff --git a/libAACdec/src/conceal.h b/libAACdec/src/conceal.h deleted file mode 100644 index 20e674f..0000000 --- a/libAACdec/src/conceal.h +++ /dev/null @@ -1,148 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - Description: independent channel concealment - -******************************************************************************/ - -#ifndef _CONCEAL_H_ -#define _CONCEAL_H_ - -#include "aacdecoder_lib.h" - -#include "channelinfo.h" - -#define AACDEC_CONCEAL_PARAM_NOT_SPECIFIED ( 0xFFFE ) - -void CConcealment_InitCommonData (CConcealParams *pConcealCommonData); - -void CConcealment_InitChannelData (CConcealmentInfo *hConcealmentInfo, - CConcealParams *pConcealCommonData, - int samplesPerFrame); - -CConcealmentMethod - CConcealment_GetMethod (CConcealParams *pConcealCommonData); - -UINT - CConcealment_GetDelay (CConcealParams *pConcealCommonData); - -AAC_DECODER_ERROR - CConcealment_SetParams (CConcealParams *concealParams, - int method, - int fadeOutSlope, - int fadeInSlope, - int muteRelease, - int comfNoiseLevel); - -CConcealmentState - CConcealment_GetState (CConcealmentInfo *hConcealmentInfo); - -AAC_DECODER_ERROR - CConcealment_SetAttenuation (CConcealParams *concealParams, - SHORT *fadeOutAttenuationVector, - SHORT *fadeInAttenuationVector); - -void CConcealment_Store (CConcealmentInfo *hConcealmentInfo, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo ); - -int CConcealment_Apply (CConcealmentInfo *hConcealmentInfo, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo, - const SamplingRateInfo *pSamplingRateInfo, - const int samplesPerFrame, - const UCHAR lastLpdMode, - const int FrameOk, - const UINT flags); - -FIXP_DBL - CConcealment_GetFadeFactor (CConcealmentInfo *hConcealmentInfo, - const int fPreviousFactor); - -int CConcealment_GetLastFrameOk (CConcealmentInfo *hConcealmentInfo, - const int fBeforeApply); - -#endif /* #ifndef _CONCEAL_H_ */ diff --git a/libAACdec/src/conceal_types.h b/libAACdec/src/conceal_types.h deleted file mode 100644 index 31bc645..0000000 --- a/libAACdec/src/conceal_types.h +++ /dev/null @@ -1,178 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Christian Griebel - Description: Error concealment structs and types - -******************************************************************************/ - -#ifndef CONCEAL_TYPES_H -#define CONCEAL_TYPES_H - - - -#include "machine_type.h" -#include "common_fix.h" - -#include "rvlc_info.h" - - -#define CONCEAL_MAX_NUM_FADE_FACTORS ( 16 ) - - #define FIXP_CNCL FIXP_DBL - #define FL2FXCONST_CNCL FL2FXCONST_DBL - #define FX_DBL2FX_CNCL - #define FX_CNCL2FX_DBL - #define CNCL_FRACT_BITS DFRACT_BITS - -/* Warning: Do not ever change these values. */ -typedef enum -{ - ConcealMethodNone = -1, - ConcealMethodMute = 0, - ConcealMethodNoise = 1, - ConcealMethodInter = 2, - ConcealMethodTonal = 3 - -} CConcealmentMethod; - - -typedef enum -{ - ConcealState_Ok, - ConcealState_Single, - ConcealState_FadeIn, - ConcealState_Mute, - ConcealState_FadeOut - -} CConcealmentState; - - -typedef struct -{ - FIXP_SGL fadeOutFactor[CONCEAL_MAX_NUM_FADE_FACTORS]; - FIXP_SGL fadeInFactor [CONCEAL_MAX_NUM_FADE_FACTORS]; - - CConcealmentMethod method; - - int numFadeOutFrames; - int numFadeInFrames; - int numMuteReleaseFrames; - int comfortNoiseLevel; - -} CConcealParams; - - - -typedef struct -{ - CConcealParams *pConcealParams; - - FIXP_CNCL spectralCoefficient[1024]; - SHORT specScale[8]; - - INT iRandomPhase; - INT prevFrameOk[2]; - INT cntFadeFrames; - INT cntValidFrames; - - SHORT aRvlcPreviousScaleFactor[RVLC_MAX_SFB]; /* needed once per channel */ - UCHAR aRvlcPreviousCodebook[RVLC_MAX_SFB]; /* needed once per channel */ - SCHAR rvlcPreviousScaleFactorOK; - SCHAR rvlcPreviousBlockType; - - - SCHAR lastRenderMode; - - UCHAR windowShape; - UCHAR windowSequence; - UCHAR lastWinGrpLen; - - CConcealmentState concealState; - -} CConcealmentInfo; - - -#endif /* #ifndef CONCEAL_TYPES_H */ diff --git a/libAACdec/src/debug.h b/libAACdec/src/debug.h deleted file mode 100644 index e903291..0000000 --- a/libAACdec/src/debug.h +++ /dev/null @@ -1,97 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - Description: debug output - -******************************************************************************/ - -#ifndef DEBUG_H -#define DEBUG_H - -#include "machine_type.h" - - -#endif diff --git a/libAACdec/src/ldfiltbank.cpp b/libAACdec/src/ldfiltbank.cpp deleted file mode 100644 index c08cc41..0000000 --- a/libAACdec/src/ldfiltbank.cpp +++ /dev/null @@ -1,208 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************************************************************\ -* - * filename: ldfiltbank.c - * project : MPEG-4 Audio Decoder - * contents/description: low delay filterbank - * -\***************************************************************************/ - -#include "ldfiltbank.h" - - -#include "aac_rom.h" -#include "dct.h" -#include "FDK_tools_rom.h" -#include "mdct.h" - -#define LDFB_HEADROOM 2 - -static void multE2_DinvF_fdk(INT_PCM *output, FIXP_DBL* x, const FIXP_WTB* fb, FIXP_DBL* z, const int N, const int stride) -{ - int i, scale; - - /* scale for FIXP_DBL -> INT_PCM conversion. */ - scale = (DFRACT_BITS - SAMPLE_BITS) - LDFB_HEADROOM; - - for(i=0;i<N/4;i++) - { - FIXP_DBL z0, z2, tmp; - - z2 = x[N/2+i]; - z0 = z2 + ( fMultDiv2(z[N/2+i], fb[2*N + i]) >> (-WTS2-1) ); - - z[N/2+i] = x[N/2-1-i] + ( fMultDiv2(z[N + i], fb[2*N + N/2 + i]) >> (-WTS2-1) ); - - tmp = ( fMultDiv2(z[N/2+i], fb[N+N/2-1-i]) + fMultDiv2(z[i], fb[N+N/2+i]) ) ; - -#if (SAMPLE_BITS <= 16) - FDK_ASSERT( (-WTS1-1 + scale) >= 0); - output[(N*3/4-1-i)*stride] = (INT_PCM)SATURATE_RIGHT_SHIFT(tmp, -WTS1-1 + scale, SAMPLE_BITS); -#else - FDK_ASSERT( (WTS1+1 - scale) >= 0); - output[(N*3/4-1-i)*stride] = (INT_PCM)SATURATE_LEFT_SHIFT(tmp, WTS1+1 - scale, SAMPLE_BITS); -#endif - - z[i] = z0; - z[N + i] = z2; - } - - for(i=N/4;i<N/2;i++) - { - FIXP_DBL z0, z2, tmp0, tmp1; - - z2 = x[N/2+i]; - z0 = z2 + ( fMultDiv2(z[N/2+i], fb[2*N + i]) >> (-WTS2-1) ); - - z[N/2+i] = x[N/2-1-i] + ( fMultDiv2(z[N + i], fb[2*N + N/2 + i]) >> (-WTS2-1) ); - - tmp0 = ( fMultDiv2(z[N/2+i], fb[N/2-1-i]) + fMultDiv2(z[i], fb[N/2+i]) ) ; - tmp1 = ( fMultDiv2(z[N/2+i], fb[N+N/2-1-i]) + fMultDiv2(z[i], fb[N+N/2+i]) ) ; - -#if (SAMPLE_BITS <= 16) - FDK_ASSERT( (-WTS0-1 + scale) >= 0); - output[(i-N/4)*stride] = (INT_PCM)SATURATE_RIGHT_SHIFT(tmp0, -WTS0-1 + scale, SAMPLE_BITS); - output[(N*3/4-1-i)*stride] = (INT_PCM)SATURATE_RIGHT_SHIFT(tmp1, -WTS1-1 + scale, SAMPLE_BITS); -#else - FDK_ASSERT( (WTS0+1 - scale) >= 0); - output[(i-N/4)*stride] = (INT_PCM)SATURATE_LEFT_SHIFT(tmp0, WTS0+1 - scale, SAMPLE_BITS); - output[(N*3/4-1-i)*stride] = (INT_PCM)SATURATE_LEFT_SHIFT(tmp1, WTS1+1 - scale, SAMPLE_BITS); -#endif - z[i] = z0; - z[N + i] = z2; - } - - /* Exchange quarter parts of x to bring them in the "right" order */ - for(i=0;i<N/4;i++) - { - FIXP_DBL tmp0 = fMultDiv2(z[i], fb[N/2+i]); - -#if (SAMPLE_BITS <= 16) - FDK_ASSERT( (-WTS0-1 + scale) >= 0); - output[(N*3/4 + i)*stride] = (INT_PCM)SATURATE_RIGHT_SHIFT(tmp0, -WTS0-1 + scale, SAMPLE_BITS); -#else - FDK_ASSERT( (WTS0+1 - scale) >= 0); - output[(N*3/4 + i)*stride] = (INT_PCM)SATURATE_LEFT_SHIFT(tmp0, WTS0+1 - scale, SAMPLE_BITS); -#endif - } -} - -int InvMdctTransformLowDelay_fdk (FIXP_DBL *mdctData, const int mdctData_e, INT_PCM *output, FIXP_DBL *fs_buffer, const int stride, const int N) { - - const FIXP_WTB *coef; - FIXP_DBL gain = (FIXP_DBL)0; - int scale = mdctData_e + MDCT_OUT_HEADROOM - LDFB_HEADROOM; /* The LDFB_HEADROOM is compensated inside multE2_DinvF_fdk() below */ - - /* Select LD window slope */ - if (N == 512) - coef = (FIXP_WTB*)LowDelaySynthesis512; - else - coef = (FIXP_WTB*)LowDelaySynthesis480; - - /* - Apply exponent and 1/N factor. - Note: "scale" is off by one because for LD_MDCT the window length is twice - the window length of a regular MDCT. This is corrected inside multE2_DinvF_fdk(). - Refer to ISO/IEC 14496-3:2009 page 277, chapter 4.6.20.2 "Low Delay Window". - */ - imdct_gain(&gain, &scale, N); - - dct_IV(mdctData, N, &scale); - - if (gain != (FIXP_DBL)0) { - scaleValuesWithFactor(mdctData, gain, N, scale); - } else { - scaleValues(mdctData, N, scale); - } - - /* Since all exponent and factors have been applied, current exponent is zero. */ - multE2_DinvF_fdk(output, mdctData, coef, fs_buffer, N, stride); - - return (1); -} - - - - diff --git a/libAACdec/src/ldfiltbank.h b/libAACdec/src/ldfiltbank.h deleted file mode 100644 index d1f9402..0000000 --- a/libAACdec/src/ldfiltbank.h +++ /dev/null @@ -1,109 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************************************************************\ - * - - * filename: ldfiltbank.h - * project : MPEG-4 Audio Decoder - * contents/description: low delay filterbank interface - * -\***************************************************************************/ - -#ifndef _LDFILTBANK_H -#define _LDFILTBANK_H - -#include "common_fix.h" - - -int InvMdctTransformLowDelay_fdk ( - FIXP_DBL *mdctdata_m, - const int mdctdata_e, - INT_PCM *mdctOut, - FIXP_DBL *fs_buffer, - const int stride, - const int frameLength - ); - - -#endif diff --git a/libAACdec/src/overlapadd.h b/libAACdec/src/overlapadd.h deleted file mode 100644 index 1469be7..0000000 --- a/libAACdec/src/overlapadd.h +++ /dev/null @@ -1,105 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - Description: - -******************************************************************************/ - -#ifndef OVERLAPADD_H -#define OVERLAPADD_H - -#include "common_fix.h" - -#define OverlapBufferSize (1024*2) - -typedef FIXP_DBL SPECTRUM[1024]; -typedef FIXP_DBL * SPECTRAL_PTR; - -#define SPEC_LONG(ptr) (ptr) -#define SPEC(ptr,w,gl) ((ptr)+((w)*(gl))) - - -#endif /* #ifndef OVERLAPADD_H */ diff --git a/libAACdec/src/pulsedata.cpp b/libAACdec/src/pulsedata.cpp deleted file mode 100644 index 0f2f0ec..0000000 --- a/libAACdec/src/pulsedata.cpp +++ /dev/null @@ -1,158 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - Description: pulse data tool - -******************************************************************************/ - -#include "pulsedata.h" - - -#include "channelinfo.h" - - -INT CPulseData_Read( - HANDLE_FDK_BITSTREAM bs, - CPulseData *const PulseData, - const SHORT *sfb_startlines, - const void *pIcsInfo, - const SHORT frame_length - ) -{ - int i, k=0; - const UINT MaxSfBands = GetScaleFactorBandsTransmitted((CIcsInfo*)pIcsInfo); - - /* reset pulse data flag */ - PulseData->PulseDataPresent = 0; - - if ((PulseData->PulseDataPresent = (UCHAR) FDKreadBit(bs)) != 0) { - if (!IsLongBlock((CIcsInfo*)pIcsInfo)) { - return AAC_DEC_DECODE_FRAME_ERROR; - } - - PulseData->NumberPulse = (UCHAR) FDKreadBits(bs,2); - PulseData->PulseStartBand = (UCHAR) FDKreadBits(bs,6); - - if (PulseData->PulseStartBand >= MaxSfBands) { - return AAC_DEC_DECODE_FRAME_ERROR; - } - - k = sfb_startlines[PulseData->PulseStartBand]; - - for (i=0; i<=PulseData->NumberPulse; i++) { - PulseData->PulseOffset[i] = (UCHAR) FDKreadBits(bs,5); - PulseData->PulseAmp[i] = (UCHAR) FDKreadBits(bs,4); - k += PulseData->PulseOffset[i]; - } - - if (k >= frame_length) { - return AAC_DEC_DECODE_FRAME_ERROR; - } - } - - - return 0; -} - -void CPulseData_Apply(CPulseData *PulseData, /*!< pointer to pulse data side info */ - const short *pScaleFactorBandOffsets, /*!< pointer to scalefactor band offsets */ - FIXP_DBL *coef) /*!< pointer to spectrum */ -{ - int i,k; - - if (PulseData->PulseDataPresent) - { - k = pScaleFactorBandOffsets[PulseData->PulseStartBand]; - - for (i=0; i<=PulseData->NumberPulse; i++) - { - k += PulseData->PulseOffset[i]; - if (coef [k] > (FIXP_DBL)0) coef[k] += (FIXP_DBL)(int)PulseData->PulseAmp[i]; - else coef[k] -= (FIXP_DBL)(int)PulseData->PulseAmp[i]; - } - } -} - diff --git a/libAACdec/src/pulsedata.h b/libAACdec/src/pulsedata.h deleted file mode 100644 index fa97d99..0000000 --- a/libAACdec/src/pulsedata.h +++ /dev/null @@ -1,145 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - Description: pulse data tool - -******************************************************************************/ - -#ifndef PULSEDATA_H -#define PULSEDATA_H - - - -#include "common_fix.h" -#include "FDK_bitstream.h" - -#define N_MAX_LINES 4 - -typedef struct -{ - UCHAR PulseDataPresent; - UCHAR NumberPulse; - UCHAR PulseStartBand; - UCHAR PulseOffset[N_MAX_LINES]; - UCHAR PulseAmp[N_MAX_LINES]; -} CPulseData; - -/** - * \brief Read pulse data from bitstream - * - * The function reads the elements for pulse data from - * the bitstream. - * - * \param bs bit stream handle data source. - * \param PulseData pointer to a CPulseData were the decoded data is stored into. - * \param MaxSfBands max number of scale factor bands. - * \return 0 on success, != 0 on parse error. - */ -INT CPulseData_Read( - const HANDLE_FDK_BITSTREAM bs, - CPulseData *const PulseData, - const SHORT *sfb_startlines, - const void *pIcsInfo, - const SHORT frame_length - ); - -/** - * \brief Apply pulse data to spectral lines - * - * The function applies the pulse data to the - * specified spectral lines. - * - * \param PulseData pointer to the previously decoded pulse data. - * \param pScaleFactorBandOffsets scale factor band line offset table. - * \param coef pointer to the spectral data were pulse data should be applied to. - * \return none -*/ -void CPulseData_Apply(CPulseData *PulseData, - const short *pScaleFactorBandOffsets, - FIXP_DBL *coef); - - -#endif /* #ifndef PULSEDATA_H */ diff --git a/libAACdec/src/rvlc.cpp b/libAACdec/src/rvlc.cpp deleted file mode 100644 index 16f0bf5..0000000 --- a/libAACdec/src/rvlc.cpp +++ /dev/null @@ -1,1215 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/*! - \file - \brief RVLC Decoder - \author Robert Weidner -*/ - -#include "rvlc.h" - - -#include "block.h" - -#include "aac_rom.h" -#include "rvlcbit.h" -#include "rvlcconceal.h" -#include "aacdec_hcr.h" - -/*--------------------------------------------------------------------------------------------- - function: rvlcInit - - description: init RVLC by data from channelinfo, which was decoded previously and - set up pointers ------------------------------------------------------------------------------------------------ - input: - pointer rvlc structure - - pointer channel info structure - - pointer bitstream structure ------------------------------------------------------------------------------------------------ - return: - --------------------------------------------------------------------------------------------- */ - -static -void rvlcInit (CErRvlcInfo *pRvlc, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - HANDLE_FDK_BITSTREAM bs) -{ - /* RVLC common initialization part 2 of 2 */ - SHORT *pScfEsc = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfEsc; - SHORT *pScfFwd = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd; - SHORT *pScfBwd = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd; - SHORT *pScaleFactor = pAacDecoderChannelInfo->pDynData->aScaleFactor; - int bnds; - - pAacDecoderChannelInfo->pDynData->specificTo.aac.rvlcIntensityUsed = 0; - - pRvlc->numDecodedEscapeWordsEsc = 0; - pRvlc->numDecodedEscapeWordsFwd = 0; - pRvlc->numDecodedEscapeWordsBwd = 0; - - pRvlc->intensity_used = 0; - pRvlc->errorLogRvlc = 0; - - pRvlc->conceal_max = CONCEAL_MAX_INIT; - pRvlc->conceal_min = CONCEAL_MIN_INIT; - - pRvlc->conceal_max_esc = CONCEAL_MAX_INIT; - pRvlc->conceal_min_esc = CONCEAL_MIN_INIT; - - pRvlc->pHuffTreeRvlcEscape = aHuffTreeRvlcEscape; - pRvlc->pHuffTreeRvlCodewds = aHuffTreeRvlCodewds; - - /* init scf arrays (for savety (in case of there are only zero codebooks)) */ - for (bnds = 0; bnds < RVLC_MAX_SFB; bnds++) { - pScfFwd[bnds] = 0; - pScfBwd[bnds] = 0; - pScfEsc[bnds] = 0; - pScaleFactor[bnds] = 0; - } - - /* set base bitstream ptr to the RVL-coded part (start of RVLC data (ESC 2)) */ - FDKsyncCache (bs); - - pRvlc->bitstreamIndexRvlFwd = FDKgetBitCnt(bs); /* first bit within RVL coded block as start address for forward decoding */ - pRvlc->bitstreamIndexRvlBwd = FDKgetBitCnt(bs) + pRvlc->length_of_rvlc_sf - 1; /* last bit within RVL coded block as start address for backward decoding */ - - /* skip RVLC-bitstream-part -- pointing now to escapes (if present) or to TNS data (if present) */ - FDKpushFor (bs, pRvlc->length_of_rvlc_sf); - - if ( pRvlc->sf_escapes_present != 0 ) { - - /* locate internal bitstream ptr at escapes (which is the second part) */ - FDKsyncCache (bs); - pRvlc->bitstreamIndexEsc = FDKgetBitCnt(bs); - - /* skip escapeRVLC-bitstream-part -- pointing to TNS data (if present) to make decoder continue */ - /* decoding of RVLC should work despite this second pushFor during initialization because */ - /* bitstream initialization is valid for both ESC2 data parts (RVL-coded values and ESC-coded values) */ - FDKpushFor (bs, pRvlc->length_of_rvlc_escapes); - } - -#if VERBOSE_RVLC_INIT - DebugOutputInit(pRvlc,pAacDecoderChannelInfo); -#endif -} - - -/*--------------------------------------------------------------------------------------------- - function: rvlcCheckIntensityCb - - description: Check if a intensity codebook is used in the current channel. ------------------------------------------------------------------------------------------------ - input: - pointer rvlc structure - - pointer channel info structure ------------------------------------------------------------------------------------------------ - output: - intensity_used: 0 no intensity codebook is used - 1 intensity codebook is used ------------------------------------------------------------------------------------------------ - return: - --------------------------------------------------------------------------------------------- */ - -static -void rvlcCheckIntensityCb (CErRvlcInfo *pRvlc, - CAacDecoderChannelInfo *pAacDecoderChannelInfo) -{ - int group, band, bnds; - - pRvlc->intensity_used = 0; - - for (group=0; group < pRvlc->numWindowGroups; group++) { - for (band=0; band < pRvlc->maxSfbTransmitted; band++) { - bnds = 16*group+band; - if ( (pAacDecoderChannelInfo->pDynData->aCodeBook[bnds] == INTENSITY_HCB) || (pAacDecoderChannelInfo->pDynData->aCodeBook[bnds] == INTENSITY_HCB2) ) { - pRvlc->intensity_used = 1; - break; - } - } - } -} - - -/*--------------------------------------------------------------------------------------------- - function: rvlcDecodeEscapeWord - - description: Decode a huffman coded RVLC Escape-word. This value is part of a DPCM coded - scalefactor. ------------------------------------------------------------------------------------------------ - input: - pointer rvlc structure ------------------------------------------------------------------------------------------------ - return: - a single RVLC-Escape value which had to be applied to a DPCM value (which - has a absolute value of 7) --------------------------------------------------------------------------------------------- */ - -static -SCHAR rvlcDecodeEscapeWord (CErRvlcInfo *pRvlc, - HANDLE_FDK_BITSTREAM bs) -{ - int i; - SCHAR value; - UCHAR carryBit; - UINT treeNode; - UINT branchValue; - UINT branchNode; - - USHORT* pBitstreamIndexEsc; - const UINT* pEscTree; - - pEscTree = pRvlc->pHuffTreeRvlcEscape; - pBitstreamIndexEsc = &(pRvlc->bitstreamIndexEsc); - treeNode = *pEscTree; /* init at starting node */ - - for (i=MAX_LEN_RVLC_ESCAPE_WORD-1; i >= 0; i--) { - carryBit = rvlcReadBitFromBitstream(bs, /* get next bit */ - pBitstreamIndexEsc, - FWD); - - CarryBitToBranchValue(carryBit, /* huffman decoding, do a single step in huffman decoding tree */ - treeNode, - &branchValue, - &branchNode); - - if ((branchNode & TEST_BIT_10) == TEST_BIT_10) { /* test bit 10 ; if set --> a RVLC-escape-word is completely decoded */ - value = (SCHAR) branchNode & CLR_BIT_10; - pRvlc->length_of_rvlc_escapes -= (MAX_LEN_RVLC_ESCAPE_WORD - i); - - if (pRvlc->length_of_rvlc_escapes < 0) { - pRvlc->errorLogRvlc |= RVLC_ERROR_ALL_ESCAPE_WORDS_INVALID; - value = -1; - } - - return value; - } - else { - treeNode = *(pEscTree + branchValue); /* update treeNode for further step in decoding tree */ - } - } - - pRvlc->errorLogRvlc |= RVLC_ERROR_ALL_ESCAPE_WORDS_INVALID; - - return -1; /* should not be reached */ -} - - -/*--------------------------------------------------------------------------------------------- - function: rvlcDecodeEscapes - - description: Decodes all huffman coded RVLC Escape Words. - Here a difference to the pseudo-code-implementation from standard can be - found. A while loop (and not two nested for loops) is used for two reasons: - - 1. The plain huffman encoded escapes are decoded before the RVL-coded - scalefactors. Therefore the escapes are present in the second step - when decoding the RVL-coded-scalefactor values in forward and - backward direction. - - When the RVL-coded scalefactors are decoded and there a escape is - needed, then it is just taken out of the array in ascending order. - - 2. It's faster. ------------------------------------------------------------------------------------------------ - input: - pointer rvlc structure - - handle to FDK bitstream ------------------------------------------------------------------------------------------------ - return: - 0 ok the decoded escapes seem to be valid - - 1 error there was a error detected during decoding escapes - --> all escapes are invalid --------------------------------------------------------------------------------------------- */ - -static -void rvlcDecodeEscapes (CErRvlcInfo *pRvlc, - SHORT *pEsc, - HANDLE_FDK_BITSTREAM bs) -{ - SCHAR escWord; - SCHAR escCnt=0; - SHORT* pEscBitCntSum; - - pEscBitCntSum = &(pRvlc->length_of_rvlc_escapes); - - /* Decode all RVLC-Escape words with a plain Huffman-Decoder */ - while ( *pEscBitCntSum > 0 ) { - escWord = rvlcDecodeEscapeWord(pRvlc, bs); - - if (escWord >= 0) { - - pEsc[escCnt] = escWord; - escCnt++; - } - else { - pRvlc->errorLogRvlc |= RVLC_ERROR_ALL_ESCAPE_WORDS_INVALID; - pRvlc->numDecodedEscapeWordsEsc = escCnt; - - return; - } - } /* all RVLC escapes decoded */ - - pRvlc->numDecodedEscapeWordsEsc = escCnt; -} - - -/*--------------------------------------------------------------------------------------------- - function: decodeRVLCodeword - - description: Decodes a RVL-coded dpcm-word (-part). ------------------------------------------------------------------------------------------------ - input: - FDK bitstream handle - - pointer rvlc structure ------------------------------------------------------------------------------------------------ - return: - a dpcm value which is within range [0,1,..,14] in case of no errors. - The offset of 7 must be subtracted to get a valid dpcm scalefactor value. - In case of errors a forbidden codeword is detected --> returning -1 --------------------------------------------------------------------------------------------- */ - -SCHAR decodeRVLCodeword (HANDLE_FDK_BITSTREAM bs, CErRvlcInfo *pRvlc) -{ - int i; - SCHAR value; - UCHAR carryBit; - UINT branchValue; - UINT branchNode; - - const UINT *pRvlCodeTree = pRvlc->pHuffTreeRvlCodewds; - UCHAR direction = pRvlc->direction; - USHORT *pBitstrIndxRvl = pRvlc->pBitstrIndxRvl_RVL; - UINT treeNode = *pRvlCodeTree; - - for (i=MAX_LEN_RVLC_CODE_WORD-1; i >= 0; i--) { - carryBit = rvlcReadBitFromBitstream(bs, /* get next bit */ - pBitstrIndxRvl, - direction); - - CarryBitToBranchValue(carryBit, /* huffman decoding, do a single step in huffman decoding tree */ - treeNode, - &branchValue, - &branchNode); - - if ((branchNode & TEST_BIT_10) == TEST_BIT_10) { /* test bit 10 ; if set --> a RVLC-codeword is completely decoded */ - value = (SCHAR) (branchNode & CLR_BIT_10); - *pRvlc->pRvlBitCnt_RVL -= (MAX_LEN_RVLC_CODE_WORD - i); - - /* check available bits for decoding */ - if (*pRvlc->pRvlBitCnt_RVL < 0) { - if (direction == FWD) { - pRvlc->errorLogRvlc |= RVLC_ERROR_RVL_SUM_BIT_COUNTER_BELOW_ZERO_FWD; } - else { - pRvlc->errorLogRvlc |= RVLC_ERROR_RVL_SUM_BIT_COUNTER_BELOW_ZERO_BWD; } - value = -1; /* signalize an error in return value, because too many bits was decoded */ - } - - /* check max value of dpcm value */ - if (value > MAX_ALLOWED_DPCM_INDEX) { - if (direction == FWD) { - pRvlc->errorLogRvlc |= RVLC_ERROR_FORBIDDEN_CW_DETECTED_FWD; - } - else { - pRvlc->errorLogRvlc |= RVLC_ERROR_FORBIDDEN_CW_DETECTED_BWD; - } - value = -1; /* signalize an error in return value, because a forbidden cw was detected*/ - } - - return value; /* return a dpcm value with offset +7 or an error status */ - } - else { - treeNode = *(pRvlCodeTree + branchValue); /* update treeNode for further step in decoding tree */ - } - } - - return -1; -} - - -/*--------------------------------------------------------------------------------------------- - function: rvlcDecodeForward - - description: Decode RVL-coded codewords in forward direction. ------------------------------------------------------------------------------------------------ - input: - pointer rvlc structure - - pointer channel info structure - - handle to FDK bitstream ------------------------------------------------------------------------------------------------ - return: - --------------------------------------------------------------------------------------------- */ - -static -void rvlcDecodeForward (CErRvlcInfo *pRvlc, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - HANDLE_FDK_BITSTREAM bs) -{ - int band = 0; - int group = 0; - int bnds = 0; - - SHORT dpcm; - - SHORT factor = pAacDecoderChannelInfo->pDynData->RawDataInfo.GlobalGain - SF_OFFSET; - SHORT position = - SF_OFFSET; - SHORT noisenrg = pAacDecoderChannelInfo->pDynData->RawDataInfo.GlobalGain - SF_OFFSET - 90 - 256; - - SHORT* pScfFwd = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd; - SHORT* pScfEsc = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfEsc; - UCHAR* pEscFwdCnt = &(pRvlc->numDecodedEscapeWordsFwd); - - pRvlc->pRvlBitCnt_RVL = &(pRvlc->length_of_rvlc_sf_fwd); - pRvlc->pBitstrIndxRvl_RVL = &(pRvlc->bitstreamIndexRvlFwd); - - *pEscFwdCnt = 0; - pRvlc->direction = FWD; - pRvlc->noise_used = 0; - pRvlc->sf_used = 0; - pRvlc->lastScf = 0; - pRvlc->lastNrg = 0; - pRvlc->lastIs = 0; - - rvlcCheckIntensityCb(pRvlc,pAacDecoderChannelInfo); - - /* main loop fwd long */ - for (group=0; group < pRvlc->numWindowGroups; group++) { - for (band=0; band < pRvlc->maxSfbTransmitted; band++) { - bnds = 16*group+band; - - switch (pAacDecoderChannelInfo->pDynData->aCodeBook[bnds]) { - - case ZERO_HCB : - pScfFwd[bnds] = 0; - break; - - case INTENSITY_HCB2 : - case INTENSITY_HCB : - /* store dpcm_is_position */ - dpcm = decodeRVLCodeword(bs, pRvlc); - if ( dpcm < 0 ) { - pRvlc->conceal_max = bnds; - return; - } - dpcm -= TABLE_OFFSET; - if ((dpcm == MIN_RVL) || (dpcm == MAX_RVL)) { - if (pRvlc->length_of_rvlc_escapes) { - pRvlc->conceal_max = bnds; - return; - } - else { - if (dpcm == MIN_RVL) { - dpcm -= *pScfEsc++; - } - else { - dpcm += *pScfEsc++; - } - (*pEscFwdCnt)++; - if (pRvlc->conceal_max_esc == CONCEAL_MAX_INIT) { - pRvlc->conceal_max_esc = bnds; - } - } - } - position += dpcm; - pScfFwd[bnds] = position; - pRvlc->lastIs = position; - break; - - case NOISE_HCB : - if (pRvlc->noise_used == 0) { - pRvlc->noise_used = 1; - pRvlc->first_noise_band = bnds; - noisenrg += pRvlc->dpcm_noise_nrg; - pScfFwd[bnds] = 100 + noisenrg; - pRvlc->lastNrg = noisenrg; - } - else { - dpcm = decodeRVLCodeword(bs, pRvlc); - if ( dpcm < 0 ) { - pRvlc->conceal_max = bnds; - return; - } - dpcm -= TABLE_OFFSET; - if ((dpcm == MIN_RVL) || (dpcm == MAX_RVL)) { - if (pRvlc->length_of_rvlc_escapes) { - pRvlc->conceal_max = bnds; - return; - } - else { - if (dpcm == MIN_RVL) { - dpcm -= *pScfEsc++; - } - else { - dpcm += *pScfEsc++; - } - (*pEscFwdCnt)++; - if (pRvlc->conceal_max_esc == CONCEAL_MAX_INIT) { - pRvlc->conceal_max_esc = bnds; - } - } - } - noisenrg += dpcm; - pScfFwd[bnds] = 100 + noisenrg; - pRvlc->lastNrg = noisenrg; - } - pAacDecoderChannelInfo->data.aac.PnsData.pnsUsed[bnds] = 1; - break ; - - default : - pRvlc->sf_used = 1; - dpcm = decodeRVLCodeword(bs, pRvlc); - if ( dpcm < 0 ) { - pRvlc->conceal_max = bnds; - return; - } - dpcm -= TABLE_OFFSET; - if ((dpcm == MIN_RVL) || (dpcm == MAX_RVL)) { - if (pRvlc->length_of_rvlc_escapes) { - pRvlc->conceal_max = bnds; - return; - } - else { - if (dpcm == MIN_RVL) { - dpcm -= *pScfEsc++; } - else { - dpcm += *pScfEsc++; - } - (*pEscFwdCnt)++; - if (pRvlc->conceal_max_esc == CONCEAL_MAX_INIT) { - pRvlc->conceal_max_esc = bnds; - } - } - } - factor += dpcm; - pScfFwd[bnds] = factor; - pRvlc->lastScf = factor; - break; - } - } - } - - /* postfetch fwd long */ - if (pRvlc->intensity_used) { - dpcm = decodeRVLCodeword(bs, pRvlc); /* dpcm_is_last_position */ - if ( dpcm < 0 ) { - pRvlc->conceal_max = bnds; - return; - } - dpcm -= TABLE_OFFSET; - if ((dpcm == MIN_RVL) || (dpcm == MAX_RVL)) { - if (pRvlc->length_of_rvlc_escapes) { - pRvlc->conceal_max = bnds; - return; - } - else { - if (dpcm == MIN_RVL) { - dpcm -= *pScfEsc++; - } - else { - dpcm += *pScfEsc++; - } - (*pEscFwdCnt)++; - if (pRvlc->conceal_max_esc == CONCEAL_MAX_INIT) { - pRvlc->conceal_max_esc = bnds; - } - } - } - pRvlc->dpcm_is_last_position = dpcm; - } -} - - -/*--------------------------------------------------------------------------------------------- - function: rvlcDecodeBackward - - description: Decode RVL-coded codewords in backward direction. ------------------------------------------------------------------------------------------------ - input: - pointer rvlc structure - - pointer channel info structure - - handle FDK bitstream ------------------------------------------------------------------------------------------------ - return: - --------------------------------------------------------------------------------------------- */ - -static -void rvlcDecodeBackward (CErRvlcInfo *pRvlc, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - HANDLE_FDK_BITSTREAM bs) -{ - SHORT band, group, dpcm, offset; - SHORT bnds = pRvlc->maxSfbTransmitted-1; - - SHORT factor = pRvlc->rev_global_gain - SF_OFFSET; - SHORT position = pRvlc->dpcm_is_last_position - SF_OFFSET; - SHORT noisenrg = pRvlc->rev_global_gain + pRvlc->dpcm_noise_last_position - SF_OFFSET - 90 - 256; - - SHORT *pScfBwd = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd; - SHORT *pScfEsc = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfEsc; - UCHAR *pEscEscCnt = &(pRvlc->numDecodedEscapeWordsEsc); - UCHAR *pEscBwdCnt = &(pRvlc->numDecodedEscapeWordsBwd); - - pRvlc->pRvlBitCnt_RVL = &(pRvlc->length_of_rvlc_sf_bwd); - pRvlc->pBitstrIndxRvl_RVL = &(pRvlc->bitstreamIndexRvlBwd); - - *pEscBwdCnt = 0; - pRvlc->direction = BWD; - pScfEsc += *pEscEscCnt - 1; /* set pScfEsc to last entry */ - pRvlc->firstScf = 0; - pRvlc->firstNrg = 0; - pRvlc->firstIs = 0; - - /* prefetch long BWD */ - if (pRvlc->intensity_used) { - dpcm = decodeRVLCodeword(bs, pRvlc); /* dpcm_is_last_position */ - if ( dpcm < 0 ) { - pRvlc->dpcm_is_last_position = 0; - pRvlc->conceal_min = bnds; - return; - } - dpcm -= TABLE_OFFSET; - if ((dpcm == MIN_RVL) || (dpcm == MAX_RVL)) { - if (pRvlc->length_of_rvlc_escapes) { - pRvlc->conceal_min = bnds; - return; - } - else { - if (dpcm == MIN_RVL) { - dpcm -= *pScfEsc--; - } - else { - dpcm += *pScfEsc--; - } - (*pEscBwdCnt)++; - if (pRvlc->conceal_min_esc == CONCEAL_MIN_INIT) { - pRvlc->conceal_min_esc = bnds; - } - } - } - pRvlc->dpcm_is_last_position = dpcm; - } - - /* main loop long BWD */ - for (group=pRvlc->numWindowGroups-1; group >= 0; group--) { - for (band=pRvlc->maxSfbTransmitted-1; band >= 0; band--) { - bnds = 16*group+band; - if ((band == 0) && (pRvlc->numWindowGroups != 1)) - offset = 16 - pRvlc->maxSfbTransmitted + 1; - else - offset = 1; - - switch (pAacDecoderChannelInfo->pDynData->aCodeBook[bnds]) { - - case ZERO_HCB : - pScfBwd[bnds] = 0; - break; - - case INTENSITY_HCB2 : - case INTENSITY_HCB : - /* store dpcm_is_position */ - dpcm = decodeRVLCodeword(bs, pRvlc); - if ( dpcm < 0 ) { - pScfBwd[bnds] = position; - pRvlc->conceal_min = FDKmax(0,bnds-offset); - return; - } - dpcm -= TABLE_OFFSET; - if ((dpcm == MIN_RVL) || (dpcm == MAX_RVL)) { - if (pRvlc->length_of_rvlc_escapes) { - pScfBwd[bnds] = position; - pRvlc->conceal_min = FDKmax(0,bnds-offset); - return; - } - else { - if (dpcm == MIN_RVL) { - dpcm -= *pScfEsc--; - } - else { - dpcm += *pScfEsc--; - } - (*pEscBwdCnt)++; - if (pRvlc->conceal_min_esc == CONCEAL_MIN_INIT) { - pRvlc->conceal_min_esc = FDKmax(0,bnds-offset); - } - } - } - pScfBwd[bnds] = position; - position -= dpcm; - pRvlc->firstIs = position; - break; - - case NOISE_HCB : - if ( bnds == pRvlc->first_noise_band ) { - pScfBwd[bnds] = pRvlc->dpcm_noise_nrg + pAacDecoderChannelInfo->pDynData->RawDataInfo.GlobalGain - SF_OFFSET - 90 - 256; - pRvlc->firstNrg = pScfBwd[bnds]; - } - else { - dpcm = decodeRVLCodeword(bs, pRvlc); - if ( dpcm < 0 ) { - pScfBwd[bnds] = noisenrg; - pRvlc->conceal_min = FDKmax(0,bnds-offset); - return; - } - dpcm -= TABLE_OFFSET; - if ((dpcm == MIN_RVL) || (dpcm == MAX_RVL)) { - if (pRvlc->length_of_rvlc_escapes) { - pScfBwd[bnds] = noisenrg; - pRvlc->conceal_min = FDKmax(0,bnds-offset); - return; - } - else { - if (dpcm == MIN_RVL) { - dpcm -= *pScfEsc--; - } - else { - dpcm += *pScfEsc--; - } - (*pEscBwdCnt)++; - if (pRvlc->conceal_min_esc == CONCEAL_MIN_INIT) { - pRvlc->conceal_min_esc = FDKmax(0,bnds-offset); - } - } - } - pScfBwd[bnds] = noisenrg; - noisenrg -= dpcm; - pRvlc->firstNrg = noisenrg; - } - break ; - - default : - dpcm = decodeRVLCodeword(bs, pRvlc); - if ( dpcm < 0 ) { - pScfBwd[bnds] = factor; - pRvlc->conceal_min = FDKmax(0,bnds-offset); - return; - } - dpcm -= TABLE_OFFSET; - if ((dpcm == MIN_RVL) || (dpcm == MAX_RVL)) { - if (pRvlc->length_of_rvlc_escapes) { - pScfBwd[bnds] = factor; - pRvlc->conceal_min = FDKmax(0,bnds-offset); - return; - } - else { - if (dpcm == MIN_RVL) { - dpcm -= *pScfEsc--; - } - else { - dpcm += *pScfEsc--; - } - (*pEscBwdCnt)++; - if (pRvlc->conceal_min_esc == CONCEAL_MIN_INIT) { - pRvlc->conceal_min_esc = FDKmax(0,bnds-offset); - } - } - } - pScfBwd[bnds] = factor; - factor -= dpcm; - pRvlc->firstScf = factor; - break; - } - } - } -} - - -/*--------------------------------------------------------------------------------------------- - function: rvlcFinalErrorDetection - - description: Call RVLC concealment if error was detected in decoding process ------------------------------------------------------------------------------------------------ - input: - pointer rvlc structure - - pointer channel info structure ------------------------------------------------------------------------------------------------ - return: - --------------------------------------------------------------------------------------------- */ - -static -void rvlcFinalErrorDetection (CAacDecoderChannelInfo *pAacDecoderChannelInfo, - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo) -{ - CErRvlcInfo *pRvlc = &pAacDecoderChannelInfo->pComData->overlay.aac.erRvlcInfo; - UCHAR ErrorStatusComplete = 0; - UCHAR ErrorStatusLengthFwd = 0; - UCHAR ErrorStatusLengthBwd = 0; - UCHAR ErrorStatusLengthEscapes = 0; - UCHAR ErrorStatusFirstScf = 0; - UCHAR ErrorStatusLastScf = 0; - UCHAR ErrorStatusFirstNrg = 0; - UCHAR ErrorStatusLastNrg = 0; - UCHAR ErrorStatusFirstIs = 0; - UCHAR ErrorStatusLastIs = 0; - UCHAR ErrorStatusForbiddenCwFwd = 0; - UCHAR ErrorStatusForbiddenCwBwd = 0; - UCHAR ErrorStatusNumEscapesFwd = 0; - UCHAR ErrorStatusNumEscapesBwd = 0; - UCHAR ConcealStatus = 1; - UCHAR currentBlockType; /* short: 0, not short: 1*/ - -#if VERBOSE_RVLC_OUTPUT - CHAR Strategy[60]="No"; - SHORT conceal_max; - SHORT conceal_min; -#endif - - pAacDecoderChannelInfo->pDynData->specificTo.aac.rvlcCurrentScaleFactorOK = 1; - - /* invalid escape words, bit counter unequal zero, forbidden codeword detected */ - if (pRvlc->errorLogRvlc & RVLC_ERROR_FORBIDDEN_CW_DETECTED_FWD) - ErrorStatusForbiddenCwFwd = 1; - - if (pRvlc->errorLogRvlc & RVLC_ERROR_FORBIDDEN_CW_DETECTED_BWD) - ErrorStatusForbiddenCwBwd = 1; - - /* bit counter forward unequal zero */ - if (pRvlc->length_of_rvlc_sf_fwd) - ErrorStatusLengthFwd = 1; - - /* bit counter backward unequal zero */ - if (pRvlc->length_of_rvlc_sf_bwd) - ErrorStatusLengthBwd = 1; - - /* bit counter escape sequences unequal zero */ - if (pRvlc->sf_escapes_present) - if (pRvlc->length_of_rvlc_escapes) - ErrorStatusLengthEscapes = 1; - - if (pRvlc->sf_used) { - /* first decoded scf does not match to global gain in backward direction */ - if (pRvlc->firstScf != (pAacDecoderChannelInfo->pDynData->RawDataInfo.GlobalGain - SF_OFFSET) ) - ErrorStatusFirstScf = 1; - - /* last decoded scf does not match to rev global gain in forward direction */ - if (pRvlc->lastScf != (pRvlc->rev_global_gain - SF_OFFSET) ) - ErrorStatusLastScf = 1; - } - - if (pRvlc->noise_used) { - /* first decoded nrg does not match to dpcm_noise_nrg in backward direction */ - if (pRvlc->firstNrg != (pAacDecoderChannelInfo->pDynData->RawDataInfo.GlobalGain + pRvlc->dpcm_noise_nrg - SF_OFFSET -90 - 256) ) - ErrorStatusFirstNrg = 1; - - /* last decoded nrg does not match to dpcm_noise_last_position in forward direction */ - if (pRvlc->lastNrg != (pRvlc->rev_global_gain + pRvlc->dpcm_noise_last_position - SF_OFFSET - 90 - 256) ) - ErrorStatusLastNrg = 1; - } - - if (pRvlc->intensity_used) { - /* first decoded is position does not match in backward direction */ - if (pRvlc->firstIs != (-SF_OFFSET) ) - ErrorStatusFirstIs = 1; - - /* last decoded is position does not match in forward direction */ - if (pRvlc->lastIs != (pRvlc->dpcm_is_last_position - SF_OFFSET) ) - ErrorStatusLastIs = 1; - } - - /* decoded escapes and used escapes in forward direction do not fit */ - if ((pRvlc->numDecodedEscapeWordsFwd != pRvlc->numDecodedEscapeWordsEsc) && (pRvlc->conceal_max == CONCEAL_MAX_INIT)) { - ErrorStatusNumEscapesFwd = 1; - } - - /* decoded escapes and used escapes in backward direction do not fit */ - if ((pRvlc->numDecodedEscapeWordsBwd != pRvlc->numDecodedEscapeWordsEsc) && (pRvlc->conceal_min == CONCEAL_MIN_INIT)) { - ErrorStatusNumEscapesBwd = 1; - } - -#if VERBOSE_RVLC_OUTPUT - conceal_max = pRvlc->conceal_max; - conceal_min = pRvlc->conceal_min; -#endif - - if ( ErrorStatusLengthEscapes - || ( - ( (pRvlc->conceal_max == CONCEAL_MAX_INIT) - && (pRvlc->numDecodedEscapeWordsFwd != pRvlc->numDecodedEscapeWordsEsc) - && (ErrorStatusLastScf || ErrorStatusLastNrg || ErrorStatusLastIs) ) - - && - - ( (pRvlc->conceal_min == CONCEAL_MIN_INIT) - && (pRvlc->numDecodedEscapeWordsBwd != pRvlc->numDecodedEscapeWordsEsc) - && (ErrorStatusFirstScf || ErrorStatusFirstNrg || ErrorStatusFirstIs) ) - ) - || ( (pRvlc->conceal_max == CONCEAL_MAX_INIT) - && ((pRvlc->rev_global_gain - SF_OFFSET - pRvlc->lastScf) < -15) - ) - || ( (pRvlc->conceal_min == CONCEAL_MIN_INIT) - && ((pAacDecoderChannelInfo->pDynData->RawDataInfo.GlobalGain - SF_OFFSET - pRvlc->firstScf) < -15) - ) - ) { - if ((pRvlc->conceal_max == CONCEAL_MAX_INIT) || (pRvlc->conceal_min == CONCEAL_MIN_INIT)) { - pRvlc->conceal_max = 0; - pRvlc->conceal_min = FDKmax(0, (pRvlc->numWindowGroups-1)*16+pRvlc->maxSfbTransmitted-1); - } - else { - pRvlc->conceal_max = FDKmin(pRvlc->conceal_max,pRvlc->conceal_max_esc); - pRvlc->conceal_min = FDKmax(pRvlc->conceal_min,pRvlc->conceal_min_esc); - } - } - - ErrorStatusComplete = ErrorStatusLastScf || ErrorStatusFirstScf || ErrorStatusLastNrg || ErrorStatusFirstNrg - || ErrorStatusLastIs || ErrorStatusFirstIs || ErrorStatusForbiddenCwFwd || ErrorStatusForbiddenCwBwd - || ErrorStatusLengthFwd || ErrorStatusLengthBwd || ErrorStatusLengthEscapes || ErrorStatusNumEscapesFwd - || ErrorStatusNumEscapesBwd; - - currentBlockType = (GetWindowSequence(&pAacDecoderChannelInfo->icsInfo) == EightShortSequence) ? 0 : 1; - - - if (!ErrorStatusComplete) { - int band; - int group; - int bnds; - int lastSfbIndex; - - lastSfbIndex = (pRvlc->numWindowGroups > 1) ? 16 : 64; - - for (group=0; group < pRvlc->numWindowGroups; group++) { - for (band=0; band<pRvlc->maxSfbTransmitted; band++) { - bnds = 16*group+band; - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds]; - } - } - - for (group=0; group < pRvlc->numWindowGroups; group++) - { - for (band=0; band<pRvlc->maxSfbTransmitted; band++) { - bnds = 16*group+band; - pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds] = pAacDecoderChannelInfo->pDynData->aCodeBook[bnds]; - } - for (; band <lastSfbIndex; band++) { - bnds = 16*group+band; - FDK_ASSERT(bnds >= 0 && bnds < RVLC_MAX_SFB); - pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds] = ZERO_HCB; - } - } - } - else { - int band; - int group; - - /* A single bit error was detected in decoding of dpcm values. It also could be an error with more bits in decoding - of escapes and dpcm values whereby an illegal codeword followed not directly after the corrupted bits but just - after decoding some more (wrong) scalefactors. Use the smaller scalefactor from forward decoding, backward decoding - and previous frame. */ - if ( ((pRvlc->conceal_min != CONCEAL_MIN_INIT) || (pRvlc->conceal_max != CONCEAL_MAX_INIT)) && (pRvlc->conceal_min <= pRvlc->conceal_max) - && (pAacDecoderStaticChannelInfo->concealmentInfo.rvlcPreviousBlockType == currentBlockType) && pAacDecoderStaticChannelInfo->concealmentInfo.rvlcPreviousScaleFactorOK - && pRvlc->sf_concealment && ConcealStatus ) - { - BidirectionalEstimation_UseScfOfPrevFrameAsReference (pAacDecoderChannelInfo, pAacDecoderStaticChannelInfo); - ConcealStatus=0; -#if VERBOSE_RVLC_OUTPUT - FDKstrcpy(Strategy,"Yes (BidirectionalEstimation_UseScfOfPrevFrameAsReference)"); -#endif - } - - /* A single bit error was detected in decoding of dpcm values. It also could be an error with more bits in decoding - of escapes and dpcm values whereby an illegal codeword followed not directly after the corrupted bits but just - after decoding some more (wrong) scalefactors. Use the smaller scalefactor from forward and backward decoding. */ - if ( (pRvlc->conceal_min <= pRvlc->conceal_max) && ((pRvlc->conceal_min != CONCEAL_MIN_INIT) || (pRvlc->conceal_max != CONCEAL_MAX_INIT)) - && !(pAacDecoderStaticChannelInfo->concealmentInfo.rvlcPreviousScaleFactorOK && pRvlc->sf_concealment && (pAacDecoderStaticChannelInfo->concealmentInfo.rvlcPreviousBlockType == currentBlockType)) - && ConcealStatus ) - { - BidirectionalEstimation_UseLowerScfOfCurrentFrame (pAacDecoderChannelInfo); - ConcealStatus=0; -#if VERBOSE_RVLC_OUTPUT - FDKstrcpy(Strategy,"Yes (BidirectionalEstimation_UseLowerScfOfCurrentFrame)"); -#endif - } - - /* No errors were detected in decoding of escapes and dpcm values however the first and last value - of a group (is,nrg,sf) is incorrect */ - if ( (pRvlc->conceal_min <= pRvlc->conceal_max) && ((ErrorStatusLastScf && ErrorStatusFirstScf) - || (ErrorStatusLastNrg && ErrorStatusFirstNrg) || (ErrorStatusLastIs && ErrorStatusFirstIs)) - && !(ErrorStatusForbiddenCwFwd || ErrorStatusForbiddenCwBwd || ErrorStatusLengthEscapes ) && ConcealStatus) - { - StatisticalEstimation (pAacDecoderChannelInfo); - ConcealStatus=0; -#if VERBOSE_RVLC_OUTPUT - FDKstrcpy(Strategy,"Yes (StatisticalEstimation)"); -#endif - } - - /* A error with more bits in decoding of escapes and dpcm values was detected. Use the smaller scalefactor from forward - decoding, backward decoding and previous frame. */ - if ( (pRvlc->conceal_min <= pRvlc->conceal_max) && pAacDecoderStaticChannelInfo->concealmentInfo.rvlcPreviousScaleFactorOK && pRvlc->sf_concealment - && (pAacDecoderStaticChannelInfo->concealmentInfo.rvlcPreviousBlockType == currentBlockType) && ConcealStatus ) - { - PredictiveInterpolation(pAacDecoderChannelInfo, pAacDecoderStaticChannelInfo); - ConcealStatus=0; -#if VERBOSE_RVLC_OUTPUT - FDKstrcpy(Strategy,"Yes (PredictiveInterpolation)"); -#endif - } - - /* Call frame concealment, because no better strategy was found. Setting the scalefactors to zero is done for debugging - purposes */ - if (ConcealStatus) { - for (group=0; group < pRvlc->numWindowGroups; group++) { - for (band=0; band<pRvlc->maxSfbTransmitted; band++) { - pAacDecoderChannelInfo->pDynData->aScaleFactor[16*group+band] = 0; - } - } - pAacDecoderChannelInfo->pDynData->specificTo.aac.rvlcCurrentScaleFactorOK = 0; -#if VERBOSE_RVLC_OUTPUT - FDKstrcpy(Strategy,"Yes (FrameConcealment)"); -#endif - } - } - -#if VERBOSE_RVLC_OUTPUT - DebugOutputDistortedBitstreams(pRvlc,pAacDecoderChannelInfo,ErrorStatusLengthFwd,ErrorStatusLengthBwd, - ErrorStatusLengthEscapes,ErrorStatusFirstScf,ErrorStatusLastScf, - ErrorStatusFirstNrg,ErrorStatusLastNrg,ErrorStatusFirstIs,ErrorStatusLastIs, - ErrorStatusForbiddenCwFwd,ErrorStatusForbiddenCwBwd,ErrorStatusNumEscapesFwd, - ErrorStatusNumEscapesBwd,conceal_max,conceal_min,Strategy); -#endif -} - - -/*--------------------------------------------------------------------------------------------- - function: CRvlc_Read - - description: Read RVLC ESC1 data (side info) from bitstream. ------------------------------------------------------------------------------------------------ - input: - pointer rvlc structure - - pointer channel info structure - - pointer bitstream structure ------------------------------------------------------------------------------------------------ - return: - --------------------------------------------------------------------------------------------- */ - -void CRvlc_Read ( - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - HANDLE_FDK_BITSTREAM bs) -{ - CErRvlcInfo *pRvlc = &pAacDecoderChannelInfo->pComData->overlay.aac.erRvlcInfo; - - int group,band; - - /* RVLC long specific initialization Init part 1 of 2 */ - pRvlc->numWindowGroups = GetWindowGroups(&pAacDecoderChannelInfo->icsInfo); - pRvlc->maxSfbTransmitted = GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo->icsInfo); - pRvlc->noise_used = 0; /* noise detection */ - pRvlc->dpcm_noise_nrg = 0; /* only for debugging */ - pRvlc->dpcm_noise_last_position = 0; /* only for debugging */ - pRvlc->length_of_rvlc_escapes = -1; /* default value is used for error detection and concealment */ - - /* read only error sensitivity class 1 data (ESC 1 - data) */ - pRvlc->sf_concealment = FDKreadBits(bs,1); /* #1 */ - pRvlc->rev_global_gain = FDKreadBits(bs,8); /* #2 */ - - if (GetWindowSequence(&pAacDecoderChannelInfo->icsInfo) == EightShortSequence) { - pRvlc->length_of_rvlc_sf = FDKreadBits(bs,11); /* #3 */ - } - else { - pRvlc->length_of_rvlc_sf = FDKreadBits(bs,9); /* #3 */ - } - - /* check if noise codebook is used */ - for (group = 0; group < pRvlc->numWindowGroups; group++) { - for (band=0; band < pRvlc->maxSfbTransmitted; band++) { - if (pAacDecoderChannelInfo->pDynData->aCodeBook[16*group+band] == NOISE_HCB) { - pRvlc->noise_used = 1; - break; - } - } - } - - if (pRvlc->noise_used) - pRvlc->dpcm_noise_nrg = FDKreadBits(bs, 9); /* #4 PNS */ - - pRvlc->sf_escapes_present = FDKreadBits(bs, 1); /* #5 */ - - if ( pRvlc->sf_escapes_present) { - pRvlc->length_of_rvlc_escapes = FDKreadBits(bs, 8); /* #6 */ - } - - if (pRvlc->noise_used) { - pRvlc->dpcm_noise_last_position = FDKreadBits(bs, 9); /* #7 PNS */ - pRvlc->length_of_rvlc_sf -= 9; - } - - pRvlc->length_of_rvlc_sf_fwd = pRvlc->length_of_rvlc_sf; - pRvlc->length_of_rvlc_sf_bwd = pRvlc->length_of_rvlc_sf; -} - - -/*--------------------------------------------------------------------------------------------- - function: CRvlc_Decode - - description: Decode rvlc data - The function reads both the escape sequences and the scalefactors in forward - and backward direction. If an error occured during decoding process which can - not be concealed with the rvlc concealment frame concealment will be initiated. - Then the element "rvlcCurrentScaleFactorOK" in the decoder channel info is set - to 0 otherwise it is set to 1. ------------------------------------------------------------------------------------------------ - input: - pointer rvlc structure - - pointer channel info structure - - pointer to persistent channel info structure - - pointer bitstream structure ------------------------------------------------------------------------------------------------ - return: ErrorStatus = AAC_DEC_OK --------------------------------------------------------------------------------------------- */ - -void CRvlc_Decode ( - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo, - HANDLE_FDK_BITSTREAM bs - ) -{ - CErRvlcInfo *pRvlc = &pAacDecoderChannelInfo->pComData->overlay.aac.erRvlcInfo; - INT bitCntOffst; - UINT saveBitCnt; - - rvlcInit(pRvlc,pAacDecoderChannelInfo,bs); - - /* save bitstream position */ - saveBitCnt = FDKgetBitCnt(bs); - -#if RVLC_ADVANCED_BITSTREAM_ERROR_GENERATOR_SF - GenerateSingleBitError(pRvlc, - &(pRvlc->bitstreamIndexRvlFwd), - pRvlc->length_of_rvlc_sf, - 0); -#endif - -#if RVLC_ADVANCED_BITSTREAM_ERROR_GENERATOR_ESC - if (pRvlc->sf_escapes_present) - GenerateSingleBitError(pRvlc, - &(pRvlc->bitstreamIndexEsc), - pRvlc->length_of_rvlc_escapes, - 1); -#endif - - if ( pRvlc->sf_escapes_present) - rvlcDecodeEscapes(pRvlc, pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfEsc, bs); - - rvlcDecodeForward(pRvlc,pAacDecoderChannelInfo, bs); - rvlcDecodeBackward(pRvlc,pAacDecoderChannelInfo, bs); - rvlcFinalErrorDetection(pAacDecoderChannelInfo, pAacDecoderStaticChannelInfo); - - pAacDecoderChannelInfo->pDynData->specificTo.aac.rvlcIntensityUsed = pRvlc->intensity_used; - pAacDecoderChannelInfo->data.aac.PnsData.PnsActive = pRvlc->noise_used; - - /* restore bitstream position */ - bitCntOffst = saveBitCnt - FDKgetBitCnt(bs); - if( bitCntOffst ) { - FDKpushBiDirectional(bs, bitCntOffst); - } -} - -void CRvlc_ElementCheck ( - CAacDecoderChannelInfo *pAacDecoderChannelInfo[], - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[], - const UINT flags, - const INT elChannels - ) -{ - int ch; - - /* Required for MPS residuals. */ - if (pAacDecoderStaticChannelInfo == NULL) { - return; - } - - /* RVLC specific sanity checks */ - if ( (flags & AC_ER_RVLC) && (elChannels == 2)) { /* to be reviewed */ - if ( ( (pAacDecoderChannelInfo[0]->pDynData->specificTo.aac.rvlcCurrentScaleFactorOK == 0) || - (pAacDecoderChannelInfo[1]->pDynData->specificTo.aac.rvlcCurrentScaleFactorOK == 0) ) - && pAacDecoderChannelInfo[0]->pComData->jointStereoData.MsMaskPresent ) { - pAacDecoderChannelInfo[0]->pDynData->specificTo.aac.rvlcCurrentScaleFactorOK = 0; - pAacDecoderChannelInfo[1]->pDynData->specificTo.aac.rvlcCurrentScaleFactorOK = 0; - } - - if ( (pAacDecoderChannelInfo[0]->pDynData->specificTo.aac.rvlcCurrentScaleFactorOK == 0) - && (pAacDecoderChannelInfo[1]->pDynData->specificTo.aac.rvlcCurrentScaleFactorOK == 1) - && (pAacDecoderChannelInfo[1]->pDynData->specificTo.aac.rvlcIntensityUsed == 1) ){ - pAacDecoderChannelInfo[1]->pDynData->specificTo.aac.rvlcCurrentScaleFactorOK = 0; - } - } - - for (ch = 0; ch < elChannels; ch ++) - { - pAacDecoderStaticChannelInfo[ch]->concealmentInfo.rvlcPreviousBlockType = (GetWindowSequence(&pAacDecoderChannelInfo[ch]->icsInfo) == EightShortSequence) ? 0 : 1; - if (flags & AC_ER_RVLC) { - pAacDecoderStaticChannelInfo[ch]->concealmentInfo.rvlcPreviousScaleFactorOK = pAacDecoderChannelInfo[ch]->pDynData->specificTo.aac.rvlcCurrentScaleFactorOK; - } - else { - pAacDecoderStaticChannelInfo[ch]->concealmentInfo.rvlcPreviousScaleFactorOK = 0; - } - } -} - - diff --git a/libAACdec/src/rvlc.h b/libAACdec/src/rvlc.h deleted file mode 100644 index 18d5fa3..0000000 --- a/libAACdec/src/rvlc.h +++ /dev/null @@ -1,134 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/*! - \file - \brief Defines structures and prototypes for RVLC - \author Robert Weidner -*/ - -#ifndef RVLC_H -#define RVLC_H - - - -#include "aacdecoder.h" -#include "channel.h" -#include "rvlc_info.h" - -/* ------------------------------------------------------------------- */ -/* errorLogRvlc: A word of 32 bits used for logging possible errors */ -/* within RVLC in case of distorted bitstreams. */ -/* ------------------------------------------------------------------- */ -#define RVLC_ERROR_ALL_ESCAPE_WORDS_INVALID 0x80000000 /* ESC-Dec During RVLC-Escape-decoding there have been more bits decoded as there are available */ -#define RVLC_ERROR_RVL_SUM_BIT_COUNTER_BELOW_ZERO_FWD 0x40000000 /* RVL-Dec negative sum-bitcounter during RVL-fwd-decoding (long+shrt) */ -#define RVLC_ERROR_RVL_SUM_BIT_COUNTER_BELOW_ZERO_BWD 0x20000000 /* RVL-Dec negative sum-bitcounter during RVL-fwd-decoding (long+shrt) */ -#define RVLC_ERROR_FORBIDDEN_CW_DETECTED_FWD 0x08000000 /* RVL-Dec forbidden codeword detected fwd (long+shrt) */ -#define RVLC_ERROR_FORBIDDEN_CW_DETECTED_BWD 0x04000000 /* RVL-Dec forbidden codeword detected bwd (long+shrt) */ - - - -void CRvlc_Read (CAacDecoderChannelInfo *pAacDecoderChannelInfo, - HANDLE_FDK_BITSTREAM bs); - -void CRvlc_Decode (CAacDecoderChannelInfo *pAacDecoderChannelInfo, - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo, - HANDLE_FDK_BITSTREAM bs); - -/** - * \brief performe sanity checks to the channel data corresponding to one channel element. - * \param pAacDecoderChannelInfo - * \param pAacDecoderStaticChannelInfo - * \param elChannels amount of channels of the channel element. - */ -void CRvlc_ElementCheck ( - CAacDecoderChannelInfo *pAacDecoderChannelInfo[], - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[], - const UINT flags, - const INT elChannels - ); - - - - -#endif /* RVLC_H */ diff --git a/libAACdec/src/rvlc_info.h b/libAACdec/src/rvlc_info.h deleted file mode 100644 index 63934af..0000000 --- a/libAACdec/src/rvlc_info.h +++ /dev/null @@ -1,176 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/*! - \file - \brief Defines structures for RVLC - \author Robert Weidner -*/ -#ifndef RVLC_INFO_H -#define RVLC_INFO_H - - - -#define FWD 0 /* bitstream decoding direction forward (RVL coded part) */ -#define BWD 1 /* bitstream decoding direction backward (RVL coded part) */ - -#define MAX_RVL 7 /* positive RVLC escape */ -#define MIN_RVL -7 /* negative RVLC escape */ -#define MAX_ALLOWED_DPCM_INDEX 14 /* the maximum allowed index of a decoded dpcm value (offset 'TABLE_OFFSET' incl --> must be subtracted) */ -#define TABLE_OFFSET 7 /* dpcm offset of valid output values of rvl table decoding, the rvl table ouly returns positive values, therefore the offset */ -#define MAX_LEN_RVLC_CODE_WORD 9 /* max length of a RVL codeword in bits */ -#define MAX_LEN_RVLC_ESCAPE_WORD 20 /* max length of huffman coded RVLC escape word in bits */ - -#define DPCM_NOISE_NRG_BITS 9 -#define SF_OFFSET 100 /* offset for correcting scf value */ - -#define CONCEAL_MAX_INIT 1311 /* arbitrary value */ -#define CONCEAL_MIN_INIT -1311 /* arbitrary value */ - -#define RVLC_MAX_SFB ((8) * (16)) - -/* sideinfo of RVLC */ -typedef struct -{ - /* ------- ESC 1 Data: --------- */ /* order of RVLC-bitstream components in bitstream (RVLC-initialization), every component appears only once in bitstream */ - INT sf_concealment; /* 1 */ - INT rev_global_gain; /* 2 */ - SHORT length_of_rvlc_sf; /* 3 */ /* original value, gets modified (subtract 9) in case of noise (PNS); is kept for later use */ - INT dpcm_noise_nrg; /* 4 optional */ - INT sf_escapes_present; /* 5 */ - SHORT length_of_rvlc_escapes; /* 6 optional */ - INT dpcm_noise_last_position; /* 7 optional */ - - INT dpcm_is_last_position; - - SHORT length_of_rvlc_sf_fwd; /* length_of_rvlc_sf used for forward decoding */ - SHORT length_of_rvlc_sf_bwd; /* length_of_rvlc_sf used for backward decoding */ - - /* for RVL-Codeword decoder to distinguish between fwd and bwd decoding */ - SHORT *pRvlBitCnt_RVL; - USHORT *pBitstrIndxRvl_RVL; - - UCHAR numWindowGroups; - UCHAR maxSfbTransmitted; - UCHAR first_noise_group; - UCHAR first_noise_band; - UCHAR direction; - - /* bitstream indices */ - USHORT bitstreamIndexRvlFwd; /* base address of RVL-coded-scalefactor data (ESC 2) for forward decoding */ - USHORT bitstreamIndexRvlBwd; /* base address of RVL-coded-scalefactor data (ESC 2) for backward decoding */ - USHORT bitstreamIndexEsc; /* base address where RVLC-escapes start (ESC 2) */ - - /* decoding trees */ - const UINT *pHuffTreeRvlCodewds; - const UINT *pHuffTreeRvlcEscape; - - /* escape counters */ - UCHAR numDecodedEscapeWordsFwd; /* when decoding RVL-codes forward */ - UCHAR numDecodedEscapeWordsBwd; /* when decoding RVL-codes backward */ - UCHAR numDecodedEscapeWordsEsc; /* when decoding the escape-Words */ - - SCHAR noise_used; - SCHAR intensity_used; - SCHAR sf_used; - - SHORT firstScf; - SHORT lastScf; - SHORT firstNrg; - SHORT lastNrg; - SHORT firstIs; - SHORT lastIs; - - /* ------ RVLC error detection ------ */ - UINT errorLogRvlc; /* store RVLC errors */ - SHORT conceal_min; /* is set at backward decoding */ - SHORT conceal_max; /* is set at forward decoding */ - SHORT conceal_min_esc; /* is set at backward decoding */ - SHORT conceal_max_esc; /* is set at forward decoding */ -} CErRvlcInfo; - -typedef CErRvlcInfo RVLC_INFO; /* temp */ - - - -#endif /* RVLC_INFO_H */ diff --git a/libAACdec/src/rvlcbit.cpp b/libAACdec/src/rvlcbit.cpp deleted file mode 100644 index 6efbb93..0000000 --- a/libAACdec/src/rvlcbit.cpp +++ /dev/null @@ -1,131 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/*! - \file - \brief RVLC bitstream reading - \author Robert Weidner -*/ - -#include "rvlcbit.h" - - -/*--------------------------------------------------------------------------------------------- - function: rvlcReadBitFromBitstream - - description: This function returns a bit from the bitstream according to read direction. - It is called very often, therefore it makes sense to inline it (runtime). ------------------------------------------------------------------------------------------------ - input: - bitstream - - pPosition - - readDirection ------------------------------------------------------------------------------------------------ - return: - bit from bitstream --------------------------------------------------------------------------------------------- */ - -UCHAR rvlcReadBitFromBitstream (HANDLE_FDK_BITSTREAM bs, - USHORT *pPosition, - UCHAR readDirection) -{ - UINT bit; - INT readBitOffset = *pPosition-FDKgetBitCnt(bs); - - if( readBitOffset ) { - FDKpushBiDirectional(bs, readBitOffset); - } - - if (readDirection == FWD) { - bit = FDKreadBits(bs, 1); - - *pPosition += 1; - } else { - /* to be replaced with a brother function of FDKreadBits() */ - bit = FDKreadBits(bs, 1); - FDKpushBack(bs, 2); - - *pPosition -= 1; - } - - return (bit); -} - diff --git a/libAACdec/src/rvlcbit.h b/libAACdec/src/rvlcbit.h deleted file mode 100644 index 02fba88..0000000 --- a/libAACdec/src/rvlcbit.h +++ /dev/null @@ -1,103 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder *************************** - - Author(s): Robert Weidner (DSP Solutions) - Description: RVLC Decoder: Bitstream reading - -*******************************************************************************/ - -#ifndef RVLCBIT_H -#define RVLCBIT_H - - - -#include "rvlc.h" - -UCHAR rvlcReadBitFromBitstream (HANDLE_FDK_BITSTREAM bs, - USHORT *pPosition, - UCHAR readDirection); - - -#endif /* RVLCBIT_H */ diff --git a/libAACdec/src/rvlcconceal.cpp b/libAACdec/src/rvlcconceal.cpp deleted file mode 100644 index ae6b4da..0000000 --- a/libAACdec/src/rvlcconceal.cpp +++ /dev/null @@ -1,697 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/*! - \file - \brief rvlc concealment - \author Josef Hoepfl -*/ - -#include "rvlcconceal.h" - - -#include "block.h" -#include "rvlc.h" - -/*--------------------------------------------------------------------------------------------- - function: calcRefValFwd - - description: The function determines the scalefactor which is closed to the scalefactorband - conceal_min. The same is done for intensity data and noise energies. ------------------------------------------------------------------------------------------------ - output: - reference value scf - - reference value internsity data - - reference value noise energy ------------------------------------------------------------------------------------------------ - return: - --------------------------------------------------------------------------------------------- */ - -static -void calcRefValFwd (CErRvlcInfo *pRvlc, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - int *refIsFwd, - int *refNrgFwd, - int *refScfFwd) -{ - int band,bnds,group,startBand; - int idIs,idNrg,idScf; - int conceal_min,conceal_group_min; - int MaximumScaleFactorBands; - - - if (GetWindowSequence(&pAacDecoderChannelInfo->icsInfo) == EightShortSequence) - MaximumScaleFactorBands = 16; - else - MaximumScaleFactorBands = 64; - - conceal_min = pRvlc->conceal_min % MaximumScaleFactorBands; - conceal_group_min = pRvlc->conceal_min / MaximumScaleFactorBands; - - /* calculate first reference value for approach in forward direction */ - idIs = idNrg = idScf = 1; - - /* set reference values */ - *refIsFwd = - SF_OFFSET; - *refNrgFwd = pAacDecoderChannelInfo->pDynData->RawDataInfo.GlobalGain - SF_OFFSET - 90 - 256; - *refScfFwd = pAacDecoderChannelInfo->pDynData->RawDataInfo.GlobalGain - SF_OFFSET; - - startBand = conceal_min-1; - for (group=conceal_group_min; group >= 0; group--) { - for (band=startBand; band >= 0; band--) { - bnds = 16*group+band; - switch (pAacDecoderChannelInfo->pDynData->aCodeBook[bnds]) { - case ZERO_HCB: - break; - case INTENSITY_HCB: - case INTENSITY_HCB2: - if (idIs) { - *refIsFwd = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds]; - idIs=0; /* reference value has been set */ - } - break; - case NOISE_HCB: - if (idNrg) { - *refNrgFwd = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds]; - idNrg=0; /* reference value has been set */ - } - break ; - default: - if (idScf) { - *refScfFwd = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds]; - idScf=0; /* reference value has been set */ - } - break; - } - } - startBand = pRvlc->maxSfbTransmitted-1; - } - -} - -/*--------------------------------------------------------------------------------------------- - function: calcRefValBwd - - description: The function determines the scalefactor which is closed to the scalefactorband - conceal_max. The same is done for intensity data and noise energies. ------------------------------------------------------------------------------------------------ - output: - reference value scf - - reference value internsity data - - reference value noise energy ------------------------------------------------------------------------------------------------ - return: - --------------------------------------------------------------------------------------------- */ - -static -void calcRefValBwd (CErRvlcInfo *pRvlc, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - int *refIsBwd, - int *refNrgBwd, - int *refScfBwd) -{ - int band,bnds,group,startBand; - int idIs,idNrg,idScf; - int conceal_max,conceal_group_max; - int MaximumScaleFactorBands; - - if (GetWindowSequence(&pAacDecoderChannelInfo->icsInfo) == EightShortSequence) - MaximumScaleFactorBands = 16; - else - MaximumScaleFactorBands = 64; - - conceal_max = pRvlc->conceal_max % MaximumScaleFactorBands; - conceal_group_max = pRvlc->conceal_max / MaximumScaleFactorBands; - - /* calculate first reference value for approach in backward direction */ - idIs = idNrg = idScf = 1; - - /* set reference values */ - *refIsBwd = pRvlc->dpcm_is_last_position - SF_OFFSET; - *refNrgBwd = pRvlc->rev_global_gain + pRvlc->dpcm_noise_last_position - SF_OFFSET - 90 - 256 + pRvlc->dpcm_noise_nrg; - *refScfBwd = pRvlc->rev_global_gain - SF_OFFSET; - - startBand=conceal_max+1; - - /* if needed, re-set reference values */ - for (group=conceal_group_max; group < pRvlc->numWindowGroups; group++) { - for (band=startBand; band < pRvlc->maxSfbTransmitted; band++) { - bnds = 16*group+band; - switch (pAacDecoderChannelInfo->pDynData->aCodeBook[bnds]) { - case ZERO_HCB: - break; - case INTENSITY_HCB: - case INTENSITY_HCB2: - if (idIs) { - *refIsBwd = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]; - idIs=0; /* reference value has been set */ - } - break; - case NOISE_HCB: - if (idNrg) { - *refNrgBwd = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]; - idNrg=0; /* reference value has been set */ - } - break ; - default: - if (idScf) { - *refScfBwd = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]; - idScf=0; /* reference value has been set */ - } - break; - } - } - startBand=0; - } - -} - - -/*--------------------------------------------------------------------------------------------- - function: BidirectionalEstimation_UseLowerScfOfCurrentFrame - - description: This approach by means of bidirectional estimation is generally performed when - a single bit error has been detected, the bit error can be isolated between - 'conceal_min' and 'conceal_max' and the 'sf_concealment' flag is not set. The - sets of scalefactors decoded in forward and backward direction are compared - with each other. The smaller scalefactor will be considered as the correct one - respectively. The reconstruction of the scalefactors with this approach archieve - good results in audio quality. The strategy must be applied to scalefactors, - intensity data and noise energy seperately. ------------------------------------------------------------------------------------------------ - output: Concealed scalefactor, noise energy and intensity data between conceal_min and - conceal_max ------------------------------------------------------------------------------------------------ - return: - --------------------------------------------------------------------------------------------- */ - -void BidirectionalEstimation_UseLowerScfOfCurrentFrame (CAacDecoderChannelInfo *pAacDecoderChannelInfo) -{ - CErRvlcInfo *pRvlc = &pAacDecoderChannelInfo->pComData->overlay.aac.erRvlcInfo; - int band,bnds,startBand,endBand,group; - int conceal_min,conceal_max; - int conceal_group_min,conceal_group_max; - int MaximumScaleFactorBands; - - if (GetWindowSequence(&pAacDecoderChannelInfo->icsInfo) == EightShortSequence) { - MaximumScaleFactorBands = 16; - } - else { - MaximumScaleFactorBands = 64; - } - - /* If an error was detected just in forward or backward direction, set the corresponding border for concealment to a - appropriate scalefactor band. The border is set to first or last sfb respectively, because the error will possibly - not follow directly after the corrupt bit but just after decoding some more (wrong) scalefactors. */ - if (pRvlc->conceal_min == CONCEAL_MIN_INIT) - pRvlc->conceal_min = 0; - - if (pRvlc->conceal_max == CONCEAL_MAX_INIT) - pRvlc->conceal_max = (pRvlc->numWindowGroups-1)*16+pRvlc->maxSfbTransmitted-1; - - conceal_min = pRvlc->conceal_min % MaximumScaleFactorBands; - conceal_group_min = pRvlc->conceal_min / MaximumScaleFactorBands; - conceal_max = pRvlc->conceal_max % MaximumScaleFactorBands; - conceal_group_max = pRvlc->conceal_max / MaximumScaleFactorBands; - - if (pRvlc->conceal_min == pRvlc->conceal_max) { - - int refIsFwd,refNrgFwd,refScfFwd; - int refIsBwd,refNrgBwd,refScfBwd; - - bnds = pRvlc->conceal_min; - calcRefValFwd(pRvlc,pAacDecoderChannelInfo,&refIsFwd,&refNrgFwd,&refScfFwd); - calcRefValBwd(pRvlc,pAacDecoderChannelInfo,&refIsBwd,&refNrgBwd,&refScfBwd); - - switch (pAacDecoderChannelInfo->pDynData->aCodeBook[bnds]) { - case ZERO_HCB: - break; - case INTENSITY_HCB: - case INTENSITY_HCB2: - if (refIsFwd < refIsBwd) - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = refIsFwd; - else - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = refIsBwd; - break; - case NOISE_HCB: - if (refNrgFwd < refNrgBwd) - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = refNrgFwd; - else - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = refNrgBwd; - break; - default: - if (refScfFwd < refScfBwd) - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = refScfFwd; - else - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = refScfBwd; - break; - } - } - else { - pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[pRvlc->conceal_max] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[pRvlc->conceal_max]; - pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[pRvlc->conceal_min] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[pRvlc->conceal_min]; - - /* consider the smaller of the forward and backward decoded value as the correct one */ - startBand = conceal_min; - if (conceal_group_min == conceal_group_max) - endBand = conceal_max; - else - endBand = pRvlc->maxSfbTransmitted-1; - - for (group=conceal_group_min; group <= conceal_group_max; group++) { - for (band=startBand; band <= endBand; band++) { - bnds = 16*group+band; - if (pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds] < pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]) - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds]; - else - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]; - } - startBand = 0; - if ((group+1) == conceal_group_max) - endBand = conceal_max; - } - } - - /* now copy all data to the output buffer which needs not to be concealed */ - if (conceal_group_min == 0) - endBand = conceal_min; - else - endBand = pRvlc->maxSfbTransmitted; - for (group=0; group <= conceal_group_min; group++) { - for (band=0; band < endBand; band++) { - bnds = 16*group+band; - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds]; - } - if ((group+1) == conceal_group_min) - endBand = conceal_min; - } - - startBand = conceal_max+1; - for (group=conceal_group_max; group < pRvlc->numWindowGroups; group++) { - for (band=startBand; band < pRvlc->maxSfbTransmitted; band++) { - bnds = 16*group+band; - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]; - } - startBand = 0; - } -} - -/*--------------------------------------------------------------------------------------------- - function: BidirectionalEstimation_UseScfOfPrevFrameAsReference - - description: This approach by means of bidirectional estimation is generally performed when - a single bit error has been detected, the bit error can be isolated between - 'conceal_min' and 'conceal_max', the 'sf_concealment' flag is set and the - previous frame has the same block type as the current frame. The scalefactor - decoded in forward and backward direction and the scalefactor of the previous - frame are compared with each other. The smaller scalefactor will be considered - as the correct one. At this the codebook of the previous and current frame must - be of the same set (scf, nrg, is) in each scalefactorband. Otherwise the - scalefactor of the previous frame is not considered in the minimum calculation. - The reconstruction of the scalefactors with this approach archieve good results - in audio quality. The strategy must be applied to scalefactors, intensity data - and noise energy seperately. ------------------------------------------------------------------------------------------------ - output: Concealed scalefactor, noise energy and intensity data between conceal_min and - conceal_max ------------------------------------------------------------------------------------------------ - return: - --------------------------------------------------------------------------------------------- */ - -void BidirectionalEstimation_UseScfOfPrevFrameAsReference ( - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo - ) -{ - CErRvlcInfo *pRvlc = &pAacDecoderChannelInfo->pComData->overlay.aac.erRvlcInfo; - int band,bnds,startBand,endBand,group; - int conceal_min,conceal_max; - int conceal_group_min,conceal_group_max; - int MaximumScaleFactorBands; - int commonMin; - - if (GetWindowSequence(&pAacDecoderChannelInfo->icsInfo) == EightShortSequence) { - MaximumScaleFactorBands = 16; - } - else { - MaximumScaleFactorBands = 64; - } - - /* If an error was detected just in forward or backward direction, set the corresponding border for concealment to a - appropriate scalefactor band. The border is set to first or last sfb respectively, because the error will possibly - not follow directly after the corrupt bit but just after decoding some more (wrong) scalefactors. */ - if (pRvlc->conceal_min == CONCEAL_MIN_INIT) - pRvlc->conceal_min = 0; - - if (pRvlc->conceal_max == CONCEAL_MAX_INIT) - pRvlc->conceal_max = (pRvlc->numWindowGroups-1)*16+pRvlc->maxSfbTransmitted-1; - - conceal_min = pRvlc->conceal_min % MaximumScaleFactorBands; - conceal_group_min = pRvlc->conceal_min / MaximumScaleFactorBands; - conceal_max = pRvlc->conceal_max % MaximumScaleFactorBands; - conceal_group_max = pRvlc->conceal_max / MaximumScaleFactorBands; - - pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[pRvlc->conceal_max] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[pRvlc->conceal_max]; - pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[pRvlc->conceal_min] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[pRvlc->conceal_min]; - - /* consider the smaller of the forward and backward decoded value as the correct one */ - startBand = conceal_min; - if (conceal_group_min == conceal_group_max) - endBand = conceal_max; - else - endBand = pRvlc->maxSfbTransmitted-1; - - for (group=conceal_group_min; group <= conceal_group_max; group++) { - for (band=startBand; band <= endBand; band++) { - bnds = 16*group+band; - switch (pAacDecoderChannelInfo->pDynData->aCodeBook[bnds]) { - case ZERO_HCB: - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = 0; - break; - - case INTENSITY_HCB: - case INTENSITY_HCB2: - if ( (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]==INTENSITY_HCB) || (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]==INTENSITY_HCB2) ) { - commonMin = FDKmin(pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]); - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = FDKmin(commonMin, pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousScaleFactor[bnds]); - } - else { - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = FDKmin(pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]); - } - break; - - case NOISE_HCB: - if ( (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]==NOISE_HCB) ) { - commonMin = FDKmin(pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]); - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = FDKmin(commonMin, pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousScaleFactor[bnds]); - } else { - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = FDKmin(pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]); - } - break; - - default: - if ( (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]!=ZERO_HCB) - && (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]!=NOISE_HCB) - && (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]!=INTENSITY_HCB) - && (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]!=INTENSITY_HCB2) ) - { - commonMin = FDKmin(pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds], pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]); - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = FDKmin(commonMin, pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousScaleFactor[bnds]); - } else { - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = FDKmin(pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]); - } - break; - } - } - startBand = 0; - if ((group+1) == conceal_group_max) - endBand = conceal_max; - } - - /* now copy all data to the output buffer which needs not to be concealed */ - if (conceal_group_min == 0) - endBand = conceal_min; - else - endBand = pRvlc->maxSfbTransmitted; - for (group=0; group <= conceal_group_min; group++) { - for (band=0; band < endBand; band++) { - bnds = 16*group+band; - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds]; - } - if ((group+1) == conceal_group_min) - endBand = conceal_min; - } - - startBand = conceal_max+1; - for (group=conceal_group_max; group < pRvlc->numWindowGroups; group++) { - for (band=startBand; band < pRvlc->maxSfbTransmitted; band++) { - bnds = 16*group+band; - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]; - } - startBand = 0; - } -} - -/*--------------------------------------------------------------------------------------------- - function: StatisticalEstimation - - description: This approach by means of statistical estimation is generally performed when - both the start value and the end value are different and no further errors have - been detected. Considering the forward and backward decoded scalefactors, the - set with the lower scalefactors in sum will be considered as the correct one. - The scalefactors are differentially encoded. Normally it would reach to compare - one pair of the forward and backward decoded scalefactors to specify the lower - set. But having detected no further errors does not necessarily mean the absence - of errors. Therefore all scalefactors decoded in forward and backward direction - are summed up seperately. The set with the lower sum will be used. The strategy - must be applied to scalefactors, intensity data and noise energy seperately. ------------------------------------------------------------------------------------------------ - output: Concealed scalefactor, noise energy and intensity data ------------------------------------------------------------------------------------------------ - return: - --------------------------------------------------------------------------------------------- */ - -void StatisticalEstimation (CAacDecoderChannelInfo *pAacDecoderChannelInfo) -{ - CErRvlcInfo *pRvlc = &pAacDecoderChannelInfo->pComData->overlay.aac.erRvlcInfo; - int band,bnds,group; - int sumIsFwd,sumIsBwd; /* sum of intensity data forward/backward */ - int sumNrgFwd,sumNrgBwd; /* sum of noise energy data forward/backward */ - int sumScfFwd,sumScfBwd; /* sum of scalefactor data forward/backward */ - int useIsFwd,useNrgFwd,useScfFwd; /* the flags signals the elements which are used for the final result */ - int MaximumScaleFactorBands; - - if (GetWindowSequence(&pAacDecoderChannelInfo->icsInfo) == EightShortSequence) - MaximumScaleFactorBands = 16; - else - MaximumScaleFactorBands = 64; - - sumIsFwd = sumIsBwd = sumNrgFwd = sumNrgBwd = sumScfFwd = sumScfBwd = 0; - useIsFwd = useNrgFwd = useScfFwd = 0; - - /* calculate sum of each group (scf,nrg,is) of forward and backward direction */ - for (group=0; group<pRvlc->numWindowGroups; group++) { - for (band=0; band < pRvlc->maxSfbTransmitted; band++) { - bnds = 16*group+band; - switch (pAacDecoderChannelInfo->pDynData->aCodeBook[bnds]) { - case ZERO_HCB: - break; - - case INTENSITY_HCB: - case INTENSITY_HCB2: - sumIsFwd += pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds]; - sumIsBwd += pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]; - break; - - case NOISE_HCB: - sumNrgFwd += pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds]; - sumNrgBwd += pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]; - break ; - - default: - sumScfFwd += pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds]; - sumScfBwd += pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]; - break; - } - } - } - - /* find for each group (scf,nrg,is) the correct direction */ - if ( sumIsFwd < sumIsBwd ) - useIsFwd = 1; - - if ( sumNrgFwd < sumNrgBwd ) - useNrgFwd = 1; - - if ( sumScfFwd < sumScfBwd ) - useScfFwd = 1; - - /* conceal each group (scf,nrg,is) */ - for (group=0; group<pRvlc->numWindowGroups; group++) { - for (band=0; band < pRvlc->maxSfbTransmitted; band++) { - bnds = 16*group+band; - switch (pAacDecoderChannelInfo->pDynData->aCodeBook[bnds]) { - case ZERO_HCB: - break; - - case INTENSITY_HCB: - case INTENSITY_HCB2: - if (useIsFwd) - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds]; - else - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]; - break; - - case NOISE_HCB: - if (useNrgFwd) - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds]; - else - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]; - break ; - - default: - if (useScfFwd) - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds]; - else - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]; - break; - } - } - } -} - - -/*--------------------------------------------------------------------------------------------- - description: Approach by means of predictive interpolation - This approach by means of predictive estimation is generally performed when - the error cannot be isolated between 'conceal_min' and 'conceal_max', the - 'sf_concealment' flag is set and the previous frame has the same block type - as the current frame. Check for each scalefactorband if the same type of data - (scalefactor, internsity data, noise energies) is transmitted. If so use the - scalefactor (intensity data, noise energy) in the current frame. Otherwise set - the scalefactor (intensity data, noise energy) for this scalefactorband to zero. ------------------------------------------------------------------------------------------------ - output: Concealed scalefactor, noise energy and intensity data ------------------------------------------------------------------------------------------------ - return: - --------------------------------------------------------------------------------------------- */ - -void PredictiveInterpolation ( - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo - ) -{ - CErRvlcInfo *pRvlc = &pAacDecoderChannelInfo->pComData->overlay.aac.erRvlcInfo; - int band,bnds,group; - int MaximumScaleFactorBands; - int commonMin; - - if (GetWindowSequence(&pAacDecoderChannelInfo->icsInfo) == EightShortSequence) - MaximumScaleFactorBands = 16; - else - MaximumScaleFactorBands = 64; - - for (group=0; group<pRvlc->numWindowGroups; group++) { - for (band=0; band < pRvlc->maxSfbTransmitted; band++) { - bnds = 16*group+band; - switch (pAacDecoderChannelInfo->pDynData->aCodeBook[bnds]) { - case ZERO_HCB: - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = 0; - break; - - case INTENSITY_HCB: - case INTENSITY_HCB2: - if ( (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]==INTENSITY_HCB) || (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]==INTENSITY_HCB2) ) { - commonMin = FDKmin(pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]); - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = FDKmin(commonMin, pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousScaleFactor[bnds]); - } - else { - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = -110; - } - break; - - case NOISE_HCB: - if ( (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]==NOISE_HCB) ) { - commonMin = FDKmin(pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]); - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = FDKmin(commonMin, pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousScaleFactor[bnds]); - } - else { - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = -110; - } - break; - - default: - if ( (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]!=ZERO_HCB) - && (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]!=NOISE_HCB) - && (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]!=INTENSITY_HCB) - && (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]!=INTENSITY_HCB2) ) { - commonMin = FDKmin(pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]); - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = FDKmin(commonMin, pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousScaleFactor[bnds]); - } - else { - pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = 0; - } - break; - } - } - } -} - diff --git a/libAACdec/src/rvlcconceal.h b/libAACdec/src/rvlcconceal.h deleted file mode 100644 index 750cbcd..0000000 --- a/libAACdec/src/rvlcconceal.h +++ /dev/null @@ -1,112 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/*! - \file - \brief rvlc concealment - \author Josef Hoepfl -*/ - -#ifndef RVLCCONCEAL_H -#define RVLCCONCEAL_H - - - -#include "rvlc.h" - -void BidirectionalEstimation_UseLowerScfOfCurrentFrame(CAacDecoderChannelInfo *pAacDecoderChannelInfo); - -void BidirectionalEstimation_UseScfOfPrevFrameAsReference( - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo - ); - -void StatisticalEstimation (CAacDecoderChannelInfo *pAacDecoderChannelInfo); - -void PredictiveInterpolation ( - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo - ); - - -#endif /* RVLCCONCEAL_H */ diff --git a/libAACdec/src/stereo.cpp b/libAACdec/src/stereo.cpp deleted file mode 100644 index 4f28244..0000000 --- a/libAACdec/src/stereo.cpp +++ /dev/null @@ -1,297 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - Description: joint stereo processing - -******************************************************************************/ - -#include "stereo.h" - - -#include "aac_rom.h" -#include "FDK_bitstream.h" -#include "channelinfo.h" - -enum -{ - L = 0, - R = 1 -}; - - -int CJointStereo_Read( - HANDLE_FDK_BITSTREAM bs, - CJointStereoData *pJointStereoData, - const int windowGroups, - const int scaleFactorBandsTransmitted, - const UINT flags - ) -{ - int group,band; - - pJointStereoData->MsMaskPresent = (UCHAR) FDKreadBits(bs,2); - - FDKmemclear(pJointStereoData->MsUsed, scaleFactorBandsTransmitted*sizeof(UCHAR)); - - switch (pJointStereoData->MsMaskPresent) - { - case 0 : /* no M/S */ - /* all flags are already cleared */ - break ; - - case 1 : /* read ms_used */ - - for (group=0; group<windowGroups; group++) - { - for (band=0; band<scaleFactorBandsTransmitted; band++) - { - pJointStereoData->MsUsed[band] |= (FDKreadBits(bs,1) << group); - } - } - break ; - - case 2 : /* full spectrum M/S */ - - for (band=0; band<scaleFactorBandsTransmitted; band++) - { - pJointStereoData->MsUsed[band] = 255 ; /* set all flags to 1 */ - } - break ; - } - - return 0; -} - -void CJointStereo_ApplyMS( - CAacDecoderChannelInfo *pAacDecoderChannelInfo[2], - const SHORT *pScaleFactorBandOffsets, - const UCHAR *pWindowGroupLength, - const int windowGroups, - const int scaleFactorBandsTransmittedL, - const int scaleFactorBandsTransmittedR - ) -{ - CJointStereoData *pJointStereoData = &pAacDecoderChannelInfo[L]->pComData->jointStereoData; - int window, group, scaleFactorBandsTransmitted; - - FDK_ASSERT(scaleFactorBandsTransmittedL == scaleFactorBandsTransmittedR); - scaleFactorBandsTransmitted = scaleFactorBandsTransmittedL; - for (window = 0, group = 0; group < windowGroups; group++) - { - UCHAR groupMask = 1 << group; - - for (int groupwin=0; groupwin<pWindowGroupLength[group]; groupwin++, window++) - { - int band; - FIXP_DBL *leftSpectrum, *rightSpectrum; - SHORT *leftScale = &pAacDecoderChannelInfo[L]->pDynData->aSfbScale[window*16]; - SHORT *rightScale = &pAacDecoderChannelInfo[R]->pDynData->aSfbScale[window*16]; - - leftSpectrum = SPEC(pAacDecoderChannelInfo[L]->pSpectralCoefficient, window, pAacDecoderChannelInfo[L]->granuleLength); - rightSpectrum = SPEC(pAacDecoderChannelInfo[R]->pSpectralCoefficient, window, pAacDecoderChannelInfo[R]->granuleLength); - - for (band=0; band<scaleFactorBandsTransmitted; band++) - { - if (pJointStereoData->MsUsed[band] & groupMask) - { - int lScale=leftScale[band]; - int rScale=rightScale[band]; - int commonScale=lScale > rScale ? lScale:rScale; - - /* ISO/IEC 14496-3 Chapter 4.6.8.1.1 : - M/S joint channel coding can only be used if common_window is ‘1’. */ - FDK_ASSERT(GetWindowSequence(&pAacDecoderChannelInfo[L]->icsInfo) == GetWindowSequence(&pAacDecoderChannelInfo[R]->icsInfo)); - FDK_ASSERT(GetWindowShape(&pAacDecoderChannelInfo[L]->icsInfo) == GetWindowShape(&pAacDecoderChannelInfo[R]->icsInfo)); - - commonScale++; - leftScale[band]=commonScale; - rightScale[band]=commonScale; - - lScale = fMin(DFRACT_BITS-1, commonScale - lScale); - rScale = fMin(DFRACT_BITS-1, commonScale - rScale); - - FDK_ASSERT(lScale >= 0 && rScale >= 0); - - for (int index=pScaleFactorBandOffsets[band]; index<pScaleFactorBandOffsets[band+1]; index++) - { - FIXP_DBL leftCoefficient = leftSpectrum [index] ; - FIXP_DBL rightCoefficient = rightSpectrum [index] ; - - leftCoefficient >>= lScale ; - rightCoefficient >>= rScale ; - - leftSpectrum [index] = leftCoefficient + rightCoefficient ; - rightSpectrum [index] = leftCoefficient - rightCoefficient ; - } - } - } - } - } - - /* Reset MsUsed flags if no explicit signalling was transmitted. Necessary for intensity coding. - PNS correlation signalling was mapped before calling CJointStereo_ApplyMS(). */ - if (pJointStereoData->MsMaskPresent == 2) { - FDKmemclear(pJointStereoData->MsUsed, JointStereoMaximumBands * sizeof(UCHAR)); - } -} - -void CJointStereo_ApplyIS( - CAacDecoderChannelInfo *pAacDecoderChannelInfo[2], - const SHORT *pScaleFactorBandOffsets, - const UCHAR *pWindowGroupLength, - const int windowGroups, - const int scaleFactorBandsTransmitted, - const UINT CommonWindow - ) -{ - CJointStereoData *pJointStereoData = &pAacDecoderChannelInfo[L]->pComData->jointStereoData; - - for (int window=0,group=0; group<windowGroups; group++) - { - UCHAR *CodeBook; - SHORT *ScaleFactor; - UCHAR groupMask = 1 << group; - - CodeBook = &pAacDecoderChannelInfo[R]->pDynData->aCodeBook[group*16]; - ScaleFactor = &pAacDecoderChannelInfo[R]->pDynData->aScaleFactor[group*16]; - - for (int groupwin=0; groupwin<pWindowGroupLength[group]; groupwin++, window++) - { - FIXP_DBL *leftSpectrum, *rightSpectrum; - SHORT *leftScale = &pAacDecoderChannelInfo[L]->pDynData->aSfbScale[window*16]; - SHORT *rightScale = &pAacDecoderChannelInfo[R]->pDynData->aSfbScale[window*16]; - int band; - - leftSpectrum = SPEC(pAacDecoderChannelInfo[L]->pSpectralCoefficient, window, pAacDecoderChannelInfo[L]->granuleLength); - rightSpectrum = SPEC(pAacDecoderChannelInfo[R]->pSpectralCoefficient, window, pAacDecoderChannelInfo[R]->granuleLength); - - for (band=0; band<scaleFactorBandsTransmitted; band++) - { - if ((CodeBook [band] == INTENSITY_HCB) || - (CodeBook [band] == INTENSITY_HCB2)) - { - int bandScale = -(ScaleFactor [band] + 100) ; - - int msb = bandScale >> 2 ; - int lsb = bandScale & 0x03 ; - - /* exponent of MantissaTable[lsb][0] is 1, thus msb+1 below. */ - FIXP_DBL scale = MantissaTable[lsb][0]; - - /* ISO/IEC 14496-3 Chapter 4.6.8.2.3 : - The use of intensity stereo coding is signaled by the use of the pseudo codebooks - INTENSITY_HCB and INTENSITY_HCB2 (15 and 14) only in the right channel of a - channel_pair_element() having a common ics_info() (common_window == 1). */ - FDK_ASSERT(GetWindowSequence(&pAacDecoderChannelInfo[L]->icsInfo) == GetWindowSequence(&pAacDecoderChannelInfo[R]->icsInfo)); - FDK_ASSERT(GetWindowShape(&pAacDecoderChannelInfo[L]->icsInfo) == GetWindowShape(&pAacDecoderChannelInfo[R]->icsInfo)); - - rightScale[band] = leftScale[band]+msb+1; - - if (CommonWindow && (pJointStereoData->MsUsed[band] & groupMask)) - { - - if (CodeBook[band] == INTENSITY_HCB) /* _NOT_ in-phase */ - { - scale = -scale ; - } - } - else - { - if (CodeBook[band] == INTENSITY_HCB2) /* out-of-phase */ - { - scale = -scale ; - } - } - - for (int index=pScaleFactorBandOffsets[band]; index<pScaleFactorBandOffsets[band+1]; index++) - { - rightSpectrum[index] = fMult(leftSpectrum[index],scale); - } - } - } - } - } -} diff --git a/libAACdec/src/stereo.h b/libAACdec/src/stereo.h deleted file mode 100644 index 899b485..0000000 --- a/libAACdec/src/stereo.h +++ /dev/null @@ -1,134 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - Description: joint stereo processing - -******************************************************************************/ - -#ifndef STEREO_H -#define STEREO_H - - - -#include "machine_type.h" -#include "FDK_bitstream.h" - -enum -{ - JointStereoMaximumGroups = 8, - JointStereoMaximumBands = 64 -}; - -typedef struct -{ - UCHAR MsMaskPresent; - UCHAR MsUsed[JointStereoMaximumBands]; /*!< every arry element contains flags for up to 8 groups */ -} CJointStereoData; - - -/*! - \brief Read joint stereo data from bitstream - - The function reads joint stereo data from bitstream. - - \param bs bit stream handle data source. - \param pJointStereoData pointer to stereo data structure to receive decoded data. - \param windowGroups number of window groups. - \param scaleFactorBandsTransmitted number of transmitted scalefactor bands. - \param flags decoder flags - - \return 0 on success, -1 on error. -*/ -int CJointStereo_Read( - HANDLE_FDK_BITSTREAM bs, - CJointStereoData *pJointStereoData, - int windowGroups, - int scaleFactorBandsTransmitted, - UINT flags - ); - - -#endif /* #ifndef STEREO_H */ |