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Diffstat (limited to 'libSBRdec/src/sbr_ram.h')
| -rw-r--r-- | libSBRdec/src/sbr_ram.h | 213 |
1 files changed, 120 insertions, 93 deletions
diff --git a/libSBRdec/src/sbr_ram.h b/libSBRdec/src/sbr_ram.h index 7ab5044..e00f8b5 100644 --- a/libSBRdec/src/sbr_ram.h +++ b/libSBRdec/src/sbr_ram.h @@ -1,74 +1,85 @@ - -/* ----------------------------------------------------------------------------------------------------------- +/* ----------------------------------------------------------------------------- Software License for The Fraunhofer FDK AAC Codec Library for Android -© Copyright 1995 - 2015 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. +© Copyright 1995 - 2018 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. +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: +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 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 +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. +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. +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." +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. +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. +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. +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 @@ -79,66 +90,86 @@ Am Wolfsmantel 33 www.iis.fraunhofer.de/amm amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ +----------------------------------------------------------------------------- */ + +/**************************** SBR decoder library ****************************** + + Author(s): + + Description: + +*******************************************************************************/ /*! \file \brief Memory layout - */ -#ifndef _SBR_RAM_H_ -#define _SBR_RAM_H_ +#ifndef SBR_RAM_H +#define SBR_RAM_H #include "sbrdecoder.h" #include "env_extr.h" #include "sbr_dec.h" - - -#define SBRDEC_MAX_CH_PER_ELEMENT (2) - -typedef struct -{ - SBR_CHANNEL *pSbrChannel[SBRDEC_MAX_CH_PER_ELEMENT]; - TRANSPOSER_SETTINGS transposerSettings; /* Common transport settings for each individual channel of an element */ - HANDLE_FDK_BITSTREAM hBs; - - MP4_ELEMENT_ID elementID; /* Element ID set during initialization. Can be used for concealment */ - int nChannels; /* Number of elements output channels (=2 in case of PS) */ - - UCHAR frameErrorFlag[(1)+1]; /* Frame error status (for every slot in the delay line). - Will be copied into header at the very beginning of decodeElement() routine. */ - - UCHAR useFrameSlot; /* Index which defines which slot will be decoded/filled next (used with additional delay) */ - UCHAR useHeaderSlot[(1)+1]; /* Index array that provides the link between header and frame data - (important when processing with additional delay). */ +#define SBRDEC_MAX_CH_PER_ELEMENT (2) + +#define FRAME_OK (0) +#define FRAME_ERROR (1) +#define FRAME_ERROR_ALLSLOTS (2) + +typedef struct { + SBR_CHANNEL *pSbrChannel[SBRDEC_MAX_CH_PER_ELEMENT]; + TRANSPOSER_SETTINGS + transposerSettings; /* Common transport settings for each individual + channel of an element */ + HANDLE_FDK_BITSTREAM hBs; + + MP4_ELEMENT_ID + elementID; /* Element ID set during initialization. Can be used for + concealment */ + int nChannels; /* Number of elements output channels (=2 in case of PS) */ + + UCHAR frameErrorFlag[(1) + 1]; /* Frame error status (for every slot in the + delay line). Will be copied into header at + the very beginning of decodeElement() + routine. */ + + UCHAR useFrameSlot; /* Index which defines which slot will be decoded/filled + next (used with additional delay) */ + UCHAR useHeaderSlot[(1) + 1]; /* Index array that provides the link between + header and frame data (important when + processing with additional delay). */ } SBR_DECODER_ELEMENT; +struct SBR_DECODER_INSTANCE { + SBR_DECODER_ELEMENT *pSbrElement[(8)]; + SBR_HEADER_DATA sbrHeader[( + 8)][(1) + 1]; /* Sbr header for each individual channel of an element */ -struct SBR_DECODER_INSTANCE -{ - SBR_DECODER_ELEMENT *pSbrElement[(8)]; - SBR_HEADER_DATA sbrHeader[(8)][(1)+1]; /* Sbr header for each individual channel of an element */ - - FIXP_DBL *workBuffer1; - FIXP_DBL *workBuffer2; + HANDLE_FDK_QMF_DOMAIN pQmfDomain; - HANDLE_PS_DEC hParametricStereoDec; + HANDLE_PS_DEC hParametricStereoDec; /* Global parameters */ AUDIO_OBJECT_TYPE coreCodec; /* AOT of core codec */ int numSbrElements; int numSbrChannels; - INT sampleRateIn; /* SBR decoder input sampling rate; might be different than the transposer input sampling rate. */ - INT sampleRateOut; /* Sampling rate of the SBR decoder output audio samples. */ + INT sampleRateIn; /* SBR decoder input sampling rate; might be different than + the transposer input sampling rate. */ + INT sampleRateOut; /* Sampling rate of the SBR decoder output audio samples. + */ USHORT codecFrameSize; UCHAR synDownsampleFac; - UCHAR numDelayFrames; /* The current number of additional delay frames used for processing. */ - UCHAR numFlushedFrames; /* The variable counts the number of frames which are flushed consecutively. */ + INT downscaleFactor; + UCHAR numDelayFrames; /* The current number of additional delay frames used + for processing. */ + UCHAR harmonicSBR; + UCHAR + numFlushedFrames; /* The variable counts the number of frames which are + flushed consecutively. */ UINT flags; - }; H_ALLOC_MEM(Ram_SbrDecElement, SBR_DECODER_ELEMENT) @@ -148,12 +179,8 @@ H_ALLOC_MEM(Ram_SbrDecoder, struct SBR_DECODER_INSTANCE) H_ALLOC_MEM(Ram_sbr_QmfStatesSynthesis, FIXP_QSS) H_ALLOC_MEM(Ram_sbr_OverlapBuffer, FIXP_DBL) +H_ALLOC_MEM(Ram_sbr_HBEOverlapBuffer, FIXP_DBL) H_ALLOC_MEM(Ram_ps_dec, PS_DEC) - -H_ALLOC_MEM_OVERLAY(Ram_SbrDecWorkBuffer1, FIXP_DBL) -H_ALLOC_MEM_OVERLAY(Ram_SbrDecWorkBuffer2, FIXP_DBL) - - -#endif /* _SBR_RAM_H_ */ +#endif /* SBR_RAM_H */ |