diff options
Diffstat (limited to 'libMpegTPDec/include')
| -rw-r--r-- | libMpegTPDec/include/mpegFileRead.h | 194 | ||||
| -rw-r--r-- | libMpegTPDec/include/tp_data.h | 340 | ||||
| -rw-r--r-- | libMpegTPDec/include/tpdec_lib.h | 493 |
3 files changed, 1027 insertions, 0 deletions
diff --git a/libMpegTPDec/include/mpegFileRead.h b/libMpegTPDec/include/mpegFileRead.h new file mode 100644 index 0000000..d45bee2 --- /dev/null +++ b/libMpegTPDec/include/mpegFileRead.h @@ -0,0 +1,194 @@ + +/* ----------------------------------------------------------------------------------------------------------- +Software License for The Fraunhofer FDK AAC Codec Library for Android + +© Copyright 1995 - 2012 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: Bitstream data provider for MP4 decoders + +******************************************************************************/ + +#include "machine_type.h" +#include "FDK_audio.h" + +#define MPFREAD_MP4FF_DISABLE + +#ifndef MPFREAD_MP4FF_DISABLE + /*!< If MPFREAD_MP4FF_ENABLE is set, include support for MPEG ISO fileformat. + If not set, no .mp4, .m4a and .3gp files can be used for input. */ + #define MPFREAD_MP4FF_ENABLE +#endif + +/* maximum number of layers which can be read */ +/* shall equal max number of layers read by iisisoff */ +#define FILEREAD_MAX_LAYERS (2) + +typedef struct STRUCT_FILEREAD *HANDLE_FILEREAD; + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Open an MPEG audio file and try to detect its format. + * \param filename String of the filename to be opened. + * \param fileFormat Skip file format detection and use given format if fileFormat != FF_UNKNOWN. + Else store detected format into *fileFmt. + * \param transportType Skip transport type detection and use given format if transportType != TT_UNKNOWN. + Else store detected format into *fileFmt. + * \param conf Pointer to unsigned char to hold the AudioSpecificConfig of the input file, if + any (MPEG 4 file format). In case of RAW LATM it holds the StreamMuxConfig. + * \param confSize Pointer to an integer, where the length of the ASC or SMC (in case of RAW LATM) + is stored to. + * \return MPEG file read handle. + */ +HANDLE_FILEREAD mpegFileRead_Open( const char *filename, + FILE_FORMAT fileFormat, + TRANSPORT_TYPE transportType, + UCHAR *conf[], + UINT confSize[], + INT *noOfLayers + ); + +/** + * \brief Get the file format of the input file. + * \param hDataSrc MPEG file read handle. + * \return File format of the input file. + */ +FILE_FORMAT mpegFileRead_GetFileFormat(HANDLE_FILEREAD hDataSrc); + +/** + * \brief Get the transport type of the input file. + * \param hDataSrc MPEG file read handle. + * \return Transport type of the input file. + */ +TRANSPORT_TYPE mpegFileRead_GetTransportType(HANDLE_FILEREAD hDataSrc); + +/** + * \brief Read data from MPEG file. In case of packet file, read one packet, in case + * of streaming file with embedded synchronisation layer (LOAS/ADTS...), just + * fill the buffer. + * + * \param hMpegFile MPEG file read handle. + * \param inBuffer Pointer to input buffer. + * \param bufferSize Size of input buffer. + * \param bytesValid Number of bytes that were read. + * \return 0 on success, -1 if unsupported file format or file read error. + */ +int mpegFileRead_Read( HANDLE_FILEREAD hMpegFile, + UCHAR *inBuffer[], + UINT bufferSize, + UINT *bytesValid + ); + +/** + * \brief Seek in file from origin by given offset in frames. + * \param hMpegFile MPEG file read handle. + * \param origin If 0, the origin is the file beginning (absolute seek). + * If 1, the origin is the current position (relative seek). + * \param offset The amount of frames to seek from the given origin. + * \return 0 on sucess, -1 if offset < 0 or file read error. + */ +int mpegFileRead_seek( HANDLE_FILEREAD hMpegFile, + INT origin, + INT offset + ); + +/** + * \brief Get file position in percent. + * \param hMpegFile MPEG file read handle. + * \return File position in percent. + */ +int mpegFileRead_getPercent(HANDLE_FILEREAD hMpegFile); + + +/** + * \brief Close MPEG audio file. + * \param hMpegFile Mpeg file read handle. + * \return 0 on sucess. + */ +int mpegFileRead_Close(HANDLE_FILEREAD *hMpegFile); + +#ifdef __cplusplus +} +#endif diff --git a/libMpegTPDec/include/tp_data.h b/libMpegTPDec/include/tp_data.h new file mode 100644 index 0000000..6e8218a --- /dev/null +++ b/libMpegTPDec/include/tp_data.h @@ -0,0 +1,340 @@ + +/* ----------------------------------------------------------------------------------------------------------- +Software License for The Fraunhofer FDK AAC Codec Library for Android + +© Copyright 1995 - 2012 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: MPEG Transport data tables + +******************************************************************************/ + +#ifndef __TP_DATA_H__ +#define __TP_DATA_H__ + +#include "machine_type.h" +#include "FDK_audio.h" +#include "FDK_bitstream.h" + +/* + * Configuration + */ +#define TP_GA_ENABLE +/* #define TP_CELP_ENABLE */ +/* #define TP_HVXC_ENABLE */ +/* #define TP_SLS_ENABLE */ +#define TP_ELD_ENABLE +/* #define TP_USAC_ENABLE */ +/* #define TP_RSVD50_ENABLE */ + +#if defined(TP_GA_ENABLE) || defined(TP_SLS_ENABLE) +#define TP_PCE_ENABLE /**< Enable full PCE support */ +#endif + +/** + * ProgramConfig struct. + */ +/* ISO/IEC 14496-3 4.4.1.1 Table 4.2 Program config element */ +#define PC_FSB_CHANNELS_MAX 16 /* Front/Side/Back channels */ +#define PC_LFE_CHANNELS_MAX 4 +#define PC_ASSOCDATA_MAX 8 +#define PC_CCEL_MAX 16 /* CC elements */ +#define PC_COMMENTLENGTH 256 + +typedef struct +{ +#ifdef TP_PCE_ENABLE + /* PCE bitstream elements: */ + UCHAR ElementInstanceTag; + UCHAR Profile; + UCHAR SamplingFrequencyIndex; + UCHAR NumFrontChannelElements; + UCHAR NumSideChannelElements; + UCHAR NumBackChannelElements; + UCHAR NumLfeChannelElements; + UCHAR NumAssocDataElements; + UCHAR NumValidCcElements; + + UCHAR MonoMixdownPresent; + UCHAR MonoMixdownElementNumber; + + UCHAR StereoMixdownPresent; + UCHAR StereoMixdownElementNumber; + + UCHAR MatrixMixdownIndexPresent; + UCHAR MatrixMixdownIndex; + UCHAR PseudoSurroundEnable; + + UCHAR FrontElementIsCpe[PC_FSB_CHANNELS_MAX]; + UCHAR FrontElementTagSelect[PC_FSB_CHANNELS_MAX]; + + UCHAR SideElementIsCpe[PC_FSB_CHANNELS_MAX]; + UCHAR SideElementTagSelect[PC_FSB_CHANNELS_MAX]; + + UCHAR BackElementIsCpe[PC_FSB_CHANNELS_MAX]; + UCHAR BackElementTagSelect[PC_FSB_CHANNELS_MAX]; + + UCHAR LfeElementTagSelect[PC_LFE_CHANNELS_MAX]; + + UCHAR AssocDataElementTagSelect[PC_ASSOCDATA_MAX]; + + UCHAR CcElementIsIndSw[PC_CCEL_MAX]; + UCHAR ValidCcElementTagSelect[PC_CCEL_MAX]; + + UCHAR CommentFieldBytes; + UCHAR Comment[PC_COMMENTLENGTH]; +#endif /* TP_PCE_ENABLE */ + + /* Helper variables for administration: */ + UCHAR isValid; /*!< Flag showing if PCE has been read successfully. */ + UCHAR NumChannels; /*!< Amount of audio channels summing all channel elements including LFEs */ + UCHAR NumEffectiveChannels; /*!< Amount of audio channels summing only SCEs and CPEs */ + UCHAR elCounter; + +} CProgramConfig; + +typedef enum { + ASCEXT_UNKOWN = -1, + ASCEXT_SBR = 0x2b7, + ASCEXT_PS = 0x548, + ASCEXT_MPS = 0x76a, + ASCEXT_SAOC = 0x7cb, + ASCEXT_LDMPS = 0x7cc + +} TP_ASC_EXTENSION_ID; + +#ifdef TP_GA_ENABLE +/** + * GaSpecificConfig struct + */ +typedef struct { + UINT m_frameLengthFlag ; + UINT m_dependsOnCoreCoder ; + UINT m_coreCoderDelay ; + + UINT m_extensionFlag ; + UINT m_extensionFlag3 ; + + UINT m_layer; + UINT m_numOfSubFrame; + UINT m_layerLength; + +} CSGaSpecificConfig; +#endif /* TP_GA_ENABLE */ + + + + +#ifdef TP_ELD_ENABLE + +typedef enum { + ELDEXT_TERM = 0x0, /* Termination tag */ + ELDEXT_SAOC = 0x1, /* SAOC config */ + ELDEXT_LDSAC = 0x2 /* LD MPEG Surround config */ + /* reserved */ +} ASC_ELD_EXT_TYPE; + +typedef struct { + UCHAR m_frameLengthFlag; + + UCHAR m_sbrPresentFlag; + UCHAR m_useLdQmfTimeAlign; /* Use LD-MPS QMF in SBR to achive time alignment */ + UCHAR m_sbrSamplingRate; + UCHAR m_sbrCrcFlag; + +} CSEldSpecificConfig; +#endif /* TP_ELD_ENABLE */ + + + + +/** + * Audio configuration struct, suitable for encoder and decoder configuration. + */ +typedef struct { + + /* XYZ Specific Data */ + union { +#ifdef TP_GA_ENABLE + CSGaSpecificConfig m_gaSpecificConfig; /**< General audio specific configuration. */ +#endif /* TP_GA_ENABLE */ +#ifdef TP_ELD_ENABLE + CSEldSpecificConfig m_eldSpecificConfig; /**< ELD specific configuration. */ +#endif /* TP_ELD_ENABLE */ + } m_sc; + + /* Common ASC parameters */ +#ifdef TP_PCE_ENABLE + CProgramConfig m_progrConfigElement; /**< Program configuration. */ +#endif /* TP_PCE_ENABLE */ + + AUDIO_OBJECT_TYPE m_aot; /**< Audio Object Type. */ + UINT m_samplingFrequency; /**< Samplerate. */ + UINT m_samplesPerFrame; /**< Amount of samples per frame. */ + UINT m_directMapping; /**< Document this please !! */ + + AUDIO_OBJECT_TYPE m_extensionAudioObjectType; /**< Audio object type */ + UINT m_extensionSamplingFrequency; /**< Samplerate */ + + SCHAR m_channelConfiguration; /**< Channel configuration index */ + + SCHAR m_epConfig; /**< Error protection index */ + SCHAR m_vcb11Flag; /**< aacSectionDataResilienceFlag */ + SCHAR m_rvlcFlag; /**< aacScalefactorDataResilienceFlag */ + SCHAR m_hcrFlag; /**< aacSpectralDataResilienceFlag */ + + SCHAR m_sbrPresentFlag; /**< Flag indicating the presence of SBR data in the bitstream */ + SCHAR m_psPresentFlag; /**< Flag indicating the presence of parametric stereo data in the bitstream */ + UCHAR m_samplingFrequencyIndex; /**< Samplerate index */ + UCHAR m_extensionSamplingFrequencyIndex; /**< Samplerate index */ + SCHAR m_extensionChannelConfiguration; /**< Channel configuration index */ + +} CSAudioSpecificConfig; + +typedef INT (*cbUpdateConfig_t)(void*, const CSAudioSpecificConfig*); +typedef INT (*cbSsc_t)( + void*, HANDLE_FDK_BITSTREAM, + const AUDIO_OBJECT_TYPE coreCodec, + const INT samplingFrequency, + const INT muxMode, + const INT configBytes + ); +typedef INT (*cbSbr_t)( + void * self, + HANDLE_FDK_BITSTREAM hBs, + const INT sampleRateIn, + const INT sampleRateOut, + const INT samplesPerFrame, + const AUDIO_OBJECT_TYPE coreCodec, + const MP4_ELEMENT_ID elementID, + const INT elementIndex + ); + +typedef struct { + cbUpdateConfig_t cbUpdateConfig; /*!< Function pointer for Config change notify callback. */ + void *cbUpdateConfigData; /*!< User data pointer for Config change notify callback. */ + cbSsc_t cbSsc; /*!< Function pointer for SSC parser callback. */ + void *cbSscData; /*!< User data pointer for SSC parser callback. */ + cbSbr_t cbSbr; /*!< Function pointer for SBR header parser callback. */ + void *cbSbrData; /*!< User data pointer for SBR header parser callback. */ +} CSTpCallBacks; + +static const UINT SamplingRateTable[] = +{ 96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350, 0, 0, + 0 +}; + +static inline +int getSamplingRateIndex( UINT samplingRate ) +{ + UINT sf_index, tableSize=sizeof(SamplingRateTable)/sizeof(UINT); + + for (sf_index=0; sf_index<tableSize; sf_index++) { + if( SamplingRateTable[sf_index] == samplingRate ) break; + } + + if (sf_index>tableSize-1) { + return tableSize-1; + } + + return sf_index; +} + +/* + * Get Channel count from channel configuration + */ +static inline int getNumberOfTotalChannels(int channelConfig) +{ + if (channelConfig > 0 && channelConfig < 8) + return (channelConfig == 7)?8:channelConfig; + else + return 0; +} + +static inline +int getNumberOfEffectiveChannels(const int channelConfig) +{ + const int n[] = {0,1,2,3,4,5,5,7}; + return n[channelConfig]; +} + +#endif /* __TP_DATA_H__ */ diff --git a/libMpegTPDec/include/tpdec_lib.h b/libMpegTPDec/include/tpdec_lib.h new file mode 100644 index 0000000..7317204 --- /dev/null +++ b/libMpegTPDec/include/tpdec_lib.h @@ -0,0 +1,493 @@ + +/* ----------------------------------------------------------------------------------------------------------- +Software License for The Fraunhofer FDK AAC Codec Library for Android + +© Copyright 1995 - 2012 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 Transport Decoder *********************** + + Author(s): Manuel Jander + Description: MPEG Transport decoder + +******************************************************************************/ + +#ifndef __TPDEC_LIB_H__ +#define __TPDEC_LIB_H__ + +#include "tp_data.h" + +#include "FDK_bitstream.h" + +#define TRANSPORTDEC_INBUF_SIZE ( 8192 ) /*!< Size is in bytes. + Set the transport input buffer size carefully and + assure that it fulfills the requirements of the + supported transport format(s). */ + +typedef enum { + TRANSPORTDEC_OK = 0, /*!< All fine. */ + + /* Synchronization errors. Wait for new input data and try again. */ + tpdec_sync_error_start = 0x100, + TRANSPORTDEC_NOT_ENOUGH_BITS, /*!< Out of bits. Provide more bits and try again. */ + TRANSPORTDEC_SYNC_ERROR, /*!< No sync was found or sync got lost. Keep trying. */ + tpdec_sync_error_end, + + /* Decode errors. Mostly caused due to bit errors. */ + tpdec_decode_error_start = 0x400, + TRANSPORTDEC_PARSE_ERROR, /*!< Bitstream data showed inconsistencies (wrong syntax). */ + TRANSPORTDEC_UNSUPPORTED_FORMAT, /*!< Unsupported format or feature found in the bitstream data. */ + TRANSPORTDEC_CRC_ERROR, /*!< CRC error encountered in bitstream data. */ + tpdec_decode_error_end, + + /* Fatal errors. Stop immediately on one of these errors! */ + tpdec_fatal_error_start = 0x200, + TRANSPORTDEC_UNKOWN_ERROR, /*!< An unknown error occured. */ + TRANSPORTDEC_INVALID_PARAMETER, /*!< An invalid parameter was passed to a function. */ + TRANSPORTDEC_NEED_TO_RESTART, /*!< The decoder needs to be restarted, since the requiered + configuration change cannot be performed. */ + tpdec_fatal_error_end + +} TRANSPORTDEC_ERROR; + + +/** Macro to identify decode errors. */ +#define TPDEC_IS_DECODE_ERROR(err) ( ((err>=tpdec_decode_error_start) && (err<=tpdec_decode_error_end)) ? 1 : 0) +/** Macro to identify fatal errors. */ +#define TPDEC_IS_FATAL_ERROR(err) ( ((err>=tpdec_fatal_error_start) && (err<=tpdec_fatal_error_end)) ? 1 : 0) + + +/** + * \brief Parameter identifiers for transportDec_SetParam() + */ +typedef enum { + TPDEC_PARAM_MINIMIZE_DELAY = 1, /** Delay minimization strategy. 0: none, 1: discard as many frames as possible. */ + TPDEC_PARAM_EARLY_CONFIG, /** Enable early config discovery. */ + TPDEC_PARAM_IGNORE_BUFFERFULLNESS, /** Ignore buffer fullness. */ + TPDEC_PARAM_SET_BITRATE, /** Set average bit rate for bit stream interruption frame misses estimation. */ + TPDEC_PARAM_RESET, /** Reset transport decoder instance status. */ + TPDEC_PARAM_BURST_PERIOD /** Set data reception burst period in mili seconds. */ +} TPDEC_PARAM; + +/* ISO/IEC 14496-3 4.4.1.1 Table 4.2 Program config element */ +#define PC_FSB_CHANNELS_MAX 16 /* Front/Side/Back channels */ +#define PC_LFE_CHANNELS_MAX 4 +#define PC_ASSOCDATA_MAX 8 +#define PC_CCEL_MAX 16 /* CC elements */ +#define PC_COMMENTLENGTH 256 + + +/*! + \brief Reset Program Config Element. + \param pPce Program Config Element structure. + \return void +*/ +void CProgramConfig_Reset ( CProgramConfig *pPce ); + +/*! + \brief Initialize Program Config Element. + \param pPce Program Config Element structure. + \return void +*/ +void CProgramConfig_Init ( CProgramConfig *pPce ); + +/*! + \brief Inquire state of present Program Config Element structure. + \param pPce Program Config Element structure. + \return 1 if the PCE structure is filled correct, + 0 if no valid PCE present. +*/ +int CProgramConfig_IsValid ( const CProgramConfig *pPce ); + +#ifdef TP_PCE_ENABLE +/*! + \brief Read Program Config Element. + \param pPce Program Config Element structure. + \param bs Bitstream buffer to read from. + \param alignAnchor Align bitstream to alignAnchor bits after all read operations. + \return void +*/ +void CProgramConfig_Read ( CProgramConfig *pPce, + HANDLE_FDK_BITSTREAM bs, + UINT alignAnchor ); +#endif /* TP_PCE_ENABLE */ + +/** + * \brief Lookup and verify a given element. The decoder calls this + * method with every new element ID found in the bitstream. + * + * \param pPce A valid Program config structure. + * \param tag Tag of the current element to be looked up. + * \param channelIdx The current channel count of the decoder parser. + * \param chMapping Array to store the canonical channel mapping indexes. + * \param chType Array to store the audio channel type. + * \param chIndex Array to store the individual audio channel type index. + * \param elMapping Pointer where the canonical element index is stored. + * \param elType The element id of the current element to be looked up. + * + * \return Non-zero if the element belongs to the current program, zero + * if it does not. + */ +int CProgramConfig_LookupElement( + CProgramConfig *pPce, + const UINT channelConfig, + const UINT tag, + const UINT channelIdx, + UCHAR chMapping[], + AUDIO_CHANNEL_TYPE chType[], + UCHAR chIndex[], + UCHAR *elMapping, + MP4_ELEMENT_ID elList[], + MP4_ELEMENT_ID elType + ); + +/** + * \brief Get table of elements in canonical order. + * \param pPce A valid program config structure. + * \param table An array where the element IDs are stored. + * \return Total element count including all SCE, CPE and LFE. + */ +int CProgramConfig_GetElementTable( const CProgramConfig *pPce, + MP4_ELEMENT_ID table[], + const INT elListSize ); + +/** + * \brief Initialize a given AudioSpecificConfig structure. + * \param pAsc A pointer to an allocated CSAudioSpecificConfig struct. + * \return void + */ +void AudioSpecificConfig_Init(CSAudioSpecificConfig *pAsc); + +/** + * \brief Parse a AudioSpecificConfig from a given bitstream handle. + * + * \param pAsc A pointer to an allocated CSAudioSpecificConfig struct. + * \param hBs Bitstream handle. + * \param fExplicitBackwardCompatible Do explicit backward compatibility parsing if set (flag). + * \param cb pointer to structure holding callback information + * + * \return Total element count including all SCE, CPE and LFE. + */ +TRANSPORTDEC_ERROR AudioSpecificConfig_Parse( + CSAudioSpecificConfig *pAsc, + HANDLE_FDK_BITSTREAM hBs, + int fExplicitBackwardCompatible, + CSTpCallBacks *cb + ); + +/* CELP stuff */ +enum { + MPE = 0, + RPE = 1, + fs8KHz = 0, + fs16KHz = 1 +}; + +/* Defintion of flags that can be passed to transportDecOpen() */ +#define TP_FLAG_MPEG4 1 + +/* Capability flags */ +#define CAPF_TPDEC_ADIF 0x00001000 /**< Flag indicating support for ADIF transport format. */ +#define CAPF_TPDEC_ADTS 0x00002000 /**< Flag indicating support for ADTS transport format. */ +#define CAPF_TPDEC_LOAS 0x00004000 /**< Flag indicating support for LOAS transport format. */ +#define CAPF_TPDEC_LATM 0x00008000 /**< Flag indicating support for LATM transport format. */ +#define CAPF_TPDEC_RAWPACKETS 0x00010000 /**< Flag indicating support for raw packets transport format. */ + +typedef struct TRANSPORTDEC *HANDLE_TRANSPORTDEC; + + +/** + * \brief Configure Transport Decoder via a binary coded AudioSpecificConfig or StreamMuxConfig. + * The previously requested configuration callback will be called as well. The buffer conf + * must containt a SMC in case of LOAS/LATM transport format, and an ASC elseways. + * + * \param hTp Handle of a transport decoder. + * \param conf UCHAR buffer of the binary coded config (ASC or SMC). + * \param length The length in bytes of the conf buffer. + * + * \return Error code. + */ +TRANSPORTDEC_ERROR transportDec_OutOfBandConfig( const HANDLE_TRANSPORTDEC hTp, + UCHAR *conf, + const UINT length, + const UINT layer ); + +/** + * \brief Open Transport medium for reading. + * + * \param transportDecFmt Format of the transport decoder medium to be accessed. + * \param flags Transport decoder flags. Currently only TP_FLAG_MPEG4, which signals a + * MPEG4 capable decoder (relevant for ADTS only). + * + * \return A pointer to a valid and allocated HANDLE_TRANSPORTDEC or a null pointer on failure. + */ +HANDLE_TRANSPORTDEC transportDec_Open( TRANSPORT_TYPE transportDecFmt, + const UINT flags ); + +/** + * \brief Register configuration change callback. + * \param hTp Handle of transport decoder. + * \param cbUpdateConfig Pointer to a callback function to handle audio config changes. + * \param user_data void pointer for user data passed to the callback as first parameter. + * \return 0 on success. + */ +int transportDec_RegisterAscCallback ( + HANDLE_TRANSPORTDEC hTp, + const cbUpdateConfig_t cbUpdateConfig, + void* user_data ); + +/** + * \brief Register SSC parser callback. + * \param hTp Handle of transport decoder. + * \param cbUpdateConfig Pointer to a callback function to handle SSC parsing. + * \param user_data void pointer for user data passed to the callback as first parameter. + * \return 0 on success. + */ +int transportDec_RegisterSscCallback ( + HANDLE_TRANSPORTDEC hTp, + const cbSsc_t cbSscParse, + void* user_data ); + +/** + * \brief Register SBR header parser callback. + * \param hTp Handle of transport decoder. + * \param cbUpdateConfig Pointer to a callback function to handle SBR header parsing. + * \param user_data void pointer for user data passed to the callback as first parameter. + * \return 0 on success. + */ +int transportDec_RegisterSbrCallback( HANDLE_TRANSPORTDEC hTpDec, const cbSbr_t cbSbr, void* user_data); + +/** + * \brief Fill 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 %transportDec_FillData(), the right position in pBuffer can be determined to + * grab the next data. + * + * \param hTp Handle of transportDec. + * \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. + * \param layer The layer the bitstream belongs to. + * \return Error code. + */ +TRANSPORTDEC_ERROR transportDec_FillData( + const HANDLE_TRANSPORTDEC hTp, + UCHAR *pBuffer, + const UINT bufferSize, + UINT *pBytesValid, + const INT layer ); + +/** + * \brief Get transportDec bitstream handle. + * \param hTp Pointer to a transport decoder handle. + * \return HANDLE_FDK_BITSTREAM bitstream handle. + */ +HANDLE_FDK_BITSTREAM transportDec_GetBitstream ( const HANDLE_TRANSPORTDEC hTp, const UINT layer ); + +/** + * \brief Get transport format. + * \param hTp Pointer to a transport decoder handle. + * \return The transport format. + */ +TRANSPORT_TYPE transportDec_GetFormat ( const HANDLE_TRANSPORTDEC hTp ); + +/** + * \brief Get the current buffer fullness value. + * + * \param hTp Handle of a transport decoder. + * + * \return Buffer fullness + */ +INT transportDec_GetBufferFullness( const HANDLE_TRANSPORTDEC hTp ); + +/** + * \brief Close and deallocate transportDec. + * \param phTp Pointer to a previously allocated transport decoder handle. + * \return void + */ +void transportDec_Close ( HANDLE_TRANSPORTDEC *phTp ); + +/** + * \brief Read one access unit from the transportDec medium. + * \param hTp Handle of transportDec. + * \param length On return, this value is overwritten with the actual access unit length in bits. + * Set to -1 if length is unknown. + * \return Error code. + */ +TRANSPORTDEC_ERROR transportDec_ReadAccessUnit ( const HANDLE_TRANSPORTDEC hTp, const UINT layer ); + +/** + * \brief Get the remaining amount of bits of the current access unit. The result + * can be below zero, meaning that too many bits have been read. + * \param hTp Handle of transportDec. + * \return amount of remaining bits. + */ +INT transportDec_GetAuBitsRemaining( const HANDLE_TRANSPORTDEC hTp, const UINT layer ); + +/** + * \brief Get the total amount of bits of the current access unit. + * \param hTp Handle of transportDec. + * \return amount of total bits. + */ +INT transportDec_GetAuBitsTotal( const HANDLE_TRANSPORTDEC hTp, const UINT layer ); + +/** + * \brief This function is required to be called when the decoder has finished parsing + * one Access Unit for bitstream housekeeping. + * \param hTp Transport Handle. + * \return Error code. + */ +TRANSPORTDEC_ERROR transportDec_EndAccessUnit ( const HANDLE_TRANSPORTDEC hTp ); + +/** + * \brief Obtain the amount of missing access units if applicable in case of + * a bit stream synchronization error. Each time transportDec_ReadAccessUnit() + * returns TRANSPORTDEC_SYNC_ERROR this function can be called to retrieve an estimate + * of the amount of missing access units. This works only in case of constant average + * bit rate (has to be known) and if the parameter TPDEC_PARAM_SET_BITRATE has been set + * accordingly. + * \param hTp Transport Handle. + * \param pNAccessUnits pointer to a memory location where the estimated lost frame count will be stored into. + * \return Error code. + */ +TRANSPORTDEC_ERROR transportDec_GetMissingAccessUnitCount ( INT *pNAccessUnits, HANDLE_TRANSPORTDEC hTp ); + + +/** + * \brief Set a given setting. + * \param hTp Transport Handle. + * \param param Identifier of the parameter to be changed. + * \param value Value for the parameter to be changed. + * \return Error code. + */ +TRANSPORTDEC_ERROR transportDec_SetParam ( const HANDLE_TRANSPORTDEC hTp, + const TPDEC_PARAM param, + const INT value ); + +/** + * \brief Get number of subframes (for LATM or ADTS) + * \param hTp Transport Handle. + * \return Number of ADTS/LATM subframes (return 1 for all other transport types). + */ +UINT transportDec_GetNrOfSubFrames(HANDLE_TRANSPORTDEC hTp); + + +/** + * \brief Get info structure of transport decoder library. + * \param info A pointer to an allocated LIB_INFO struct. + * \return Error code. + */ +TRANSPORTDEC_ERROR transportDec_GetLibInfo( LIB_INFO *info ); + +/* ADTS CRC support */ + +/** + * \brief Set current bitstream position as start of a new data region. + * \param hTp Transport handle. + * \param mBits Size in bits of the data region. Set to 0 if it should not be of a fixed size. + * \return Data region ID, which should be used when calling transportDec_CrcEndReg(). + */ +int transportDec_CrcStartReg ( const HANDLE_TRANSPORTDEC hTp, + const INT mBits ); + +/** + * \brief Set end of data region. + * \param hTp Transport handle. + * \param reg Data region ID, opbtained from transportDec_CrcStartReg(). + * \return void + */ +void transportDec_CrcEndReg ( const HANDLE_TRANSPORTDEC hTp, + const INT reg ); + +/** + * \brief Calculate ADTS crc and check if it is correct. The ADTS checksum is held internally. + * \param hTp Transport handle. + * \return Return TRANSPORTDEC_OK if the CRC is ok, or error if CRC is not correct. + */ +TRANSPORTDEC_ERROR transportDec_CrcCheck ( const HANDLE_TRANSPORTDEC hTp ); + + +#endif /* #ifndef __TPDEC_LIB_H__ */ |