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Diffstat (limited to 'libMpegTPEnc/src/tpenc_latm.h')
| -rw-r--r-- | libMpegTPEnc/src/tpenc_latm.h | 274 |
1 files changed, 142 insertions, 132 deletions
diff --git a/libMpegTPEnc/src/tpenc_latm.h b/libMpegTPEnc/src/tpenc_latm.h index 34eea58..d650357 100644 --- a/libMpegTPEnc/src/tpenc_latm.h +++ b/libMpegTPEnc/src/tpenc_latm.h @@ -1,74 +1,85 @@ - -/* ----------------------------------------------------------------------------------------------------------- +/* ----------------------------------------------------------------------------- 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. +© 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 @@ -79,35 +90,35 @@ Am Wolfsmantel 33 www.iis.fraunhofer.de/amm amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ +----------------------------------------------------------------------------- */ -/***************************** MPEG-4 AAC Encoder ************************** +/******************* MPEG transport format encoder library ********************* Author(s): + Description: -******************************************************************************/ +*******************************************************************************/ #ifndef TPENC_LATM_H #define TPENC_LATM_H - - #include "tpenc_lib.h" #include "FDK_bitstream.h" - #define DEFAULT_LATM_NR_OF_SUBFRAMES 1 -#define DEFAULT_LATM_SMC_REPEAT 8 +#define DEFAULT_LATM_SMC_REPEAT 8 -#define MAX_AAC_LAYERS 9 +#define MAX_AAC_LAYERS 9 -#define LATM_MAX_PROGRAMS 1 -#define LATM_MAX_STREAM_ID 16 +#define LATM_MAX_PROGRAMS 1 +#define LATM_MAX_STREAM_ID 16 -#define LATM_MAX_LAYERS 1 /*MAX_AAC_LAYERS*/ +#define LATM_MAX_LAYERS 1 /*MAX_AAC_LAYERS*/ -#define MAX_NR_OF_SUBFRAMES 2 /* set this carefully to avoid buffer overflows */ +#define MAX_NR_OF_SUBFRAMES \ + 2 /* set this carefully to avoid buffer overflows \ + */ typedef enum { LATMVAR_SIMPLE_SEQUENCE } LATM_VAR_MODE; @@ -118,67 +129,80 @@ typedef struct { signed int streamID; } LATM_LAYER_INFO; - typedef struct { - LATM_LAYER_INFO m_linfo[LATM_MAX_PROGRAMS][LATM_MAX_LAYERS]; - CODER_CONFIG *config[LATM_MAX_PROGRAMS][LATM_MAX_LAYERS]; + LATM_LAYER_INFO m_linfo[LATM_MAX_PROGRAMS][LATM_MAX_LAYERS]; + CODER_CONFIG *config[LATM_MAX_PROGRAMS][LATM_MAX_LAYERS]; - LATM_VAR_MODE varMode; - TRANSPORT_TYPE tt; + LATM_VAR_MODE varMode; + TRANSPORT_TYPE tt; - int audioMuxLengthBytes; + int audioMuxLengthBytes; - int audioMuxLengthBytesPos; - int taraBufferFullness; /* state of the bit reservoir */ - int varStreamCnt; - unsigned int otherDataLenBytes; + int audioMuxLengthBytesPos; + int taraBufferFullness; /* state of the bit reservoir */ + int varStreamCnt; - UCHAR latmFrameCounter; /* Current frame number. Counts modulo muxConfigPeriod */ - UCHAR muxConfigPeriod; /* Distance in frames between MuxConfig */ + UCHAR + latmFrameCounter; /* Current frame number. Counts modulo muxConfigPeriod + */ + UCHAR muxConfigPeriod; /* Distance in frames between MuxConfig */ - UCHAR audioMuxVersion; /* AMV1 supports transmission of taraBufferFullness and ASC lengths */ - UCHAR audioMuxVersionA; /* for future extensions */ + UCHAR + audioMuxVersion; /* AMV1 supports transmission of taraBufferFullness and + ASC lengths */ + UCHAR audioMuxVersionA; /* for future extensions */ - UCHAR noProgram; - UCHAR noLayer[LATM_MAX_PROGRAMS]; - UCHAR fractDelayPresent; + UCHAR noProgram; + UCHAR noLayer[LATM_MAX_PROGRAMS]; + UCHAR fractDelayPresent; - UCHAR allStreamsSameTimeFraming; - UCHAR subFrameCnt; /* Current Subframe frame */ - UCHAR noSubframes; /* Number of subframes */ - UINT latmSubframeStart; /* Position of current subframe start */ - UCHAR noSubframes_next; + UCHAR allStreamsSameTimeFraming; + UCHAR subFrameCnt; /* Current Subframe frame */ + UCHAR noSubframes; /* Number of subframes */ + UINT latmSubframeStart; /* Position of current subframe start */ + UCHAR noSubframes_next; - UCHAR fillBits; /* AudioMuxElement fill bits */ - UCHAR streamMuxConfigBits; + UCHAR otherDataLenBits; /* AudioMuxElement other data bits */ + UCHAR fillBits; /* AudioMuxElement fill bits */ + UINT streamMuxConfigBits; } LATM_STREAM; typedef LATM_STREAM *HANDLE_LATM_STREAM; /** - * \brief Initialize LATM_STREAM Handle. Creates automatically one program with one layer with - * the given layerConfig. The layerConfig must be persisten because references to this pointer - * are made at any time again. - * Use transportEnc_Latm_AddLayer() to add more programs/layers. + * \brief Initialize LATM_STREAM Handle. Creates automatically one program with + * one layer with the given layerConfig. The layerConfig must be persisten + * because references to this pointer are made at any time again. Use + * transportEnc_Latm_AddLayer() to add more programs/layers. * * \param hLatmStreamInfo HANDLE_LATM_STREAM handle * \param hBs Bitstream handle - * \param layerConfig a valid CODER_CONFIG struct containing the current audio configuration parameters + * \param layerConfig a valid CODER_CONFIG struct containing the current audio + * configuration parameters * \param audioMuxVersion the LATM audioMuxVersion to be used - * \param tt the specific TRANSPORT_TYPE to be used, either TT_MP4_LOAS, TT_MP4_LATM_MCP1 or TT_MP4_LATM_MCP0 LOAS + * \param tt the specific TRANSPORT_TYPE to be used, either TT_MP4_LOAS, + * TT_MP4_LATM_MCP1 or TT_MP4_LATM_MCP0 LOAS * \param cb callback information structure. * * \return an TRANSPORTENC_ERROR error code */ -TRANSPORTENC_ERROR transportEnc_Latm_Init( - HANDLE_LATM_STREAM hLatmStreamInfo, - HANDLE_FDK_BITSTREAM hBs, - CODER_CONFIG *layerConfig, - UINT audioMuxVersion, - TRANSPORT_TYPE tt, - CSTpCallBacks *cb - ); +TRANSPORTENC_ERROR transportEnc_Latm_Init(HANDLE_LATM_STREAM hLatmStreamInfo, + HANDLE_FDK_BITSTREAM hBs, + CODER_CONFIG *layerConfig, + UINT audioMuxVersion, + TRANSPORT_TYPE tt, CSTpCallBacks *cb); + +/** + * \brief Write addional other data bits in AudioMuxElement + * + * \param hAss HANDLE_LATM_STREAM handle + * \param otherDataBits number of other data bits to be written + * + * \return an TRANSPORTENC_ERROR error code + */ +TRANSPORTENC_ERROR transportEnc_LatmAddOtherDataBits(HANDLE_LATM_STREAM hAss, + const int otherDataBits); /** * \brief Get bit demand of next LATM/LOAS header @@ -188,10 +212,8 @@ TRANSPORTENC_ERROR transportEnc_Latm_Init( * * \return the number of bits required by the LATM/LOAS headers */ -unsigned int transportEnc_LatmCountTotalBitDemandHeader ( - HANDLE_LATM_STREAM hAss, - unsigned int streamDataLength - ); +unsigned int transportEnc_LatmCountTotalBitDemandHeader( + HANDLE_LATM_STREAM hAss, unsigned int streamDataLength); /** * \brief Write LATM/LOAS header into given bitstream handle @@ -205,42 +227,35 @@ unsigned int transportEnc_LatmCountTotalBitDemandHeader ( * \return an TRANSPORTENC_ERROR error code */ TRANSPORTENC_ERROR -transportEnc_LatmWrite ( - HANDLE_LATM_STREAM hAss, - HANDLE_FDK_BITSTREAM hBitstream, - int auBits, - int bufferFullness, - CSTpCallBacks *cb - ); +transportEnc_LatmWrite(HANDLE_LATM_STREAM hAss, HANDLE_FDK_BITSTREAM hBitstream, + int auBits, int bufferFullness, CSTpCallBacks *cb); /** * \brief Adjust bit count relative to current subframe * * \param hAss HANDLE_LATM_STREAM handle - * \param pBits pointer to an int, where the current frame bit count is contained, - * and where the subframe relative bit count will be returned into + * \param pBits pointer to an int, where the current frame bit count is + * contained, and where the subframe relative bit count will be returned into * * \return void */ -void transportEnc_LatmAdjustSubframeBits(HANDLE_LATM_STREAM hAss, - int *pBits); +void transportEnc_LatmAdjustSubframeBits(HANDLE_LATM_STREAM hAss, int *pBits); /** * \brief Request an LATM frame, which may, or may not be available * * \param hAss HANDLE_LATM_STREAM handle * \param hBs Bitstream handle - * \param pBytes pointer to an int, where the current frame byte count stored into. - * A return value of zero means that currently no LATM/LOAS frame can be returned. - * The latter is expected in case of multiple subframes being used. + * \param pBytes pointer to an int, where the current frame byte count stored + * into. A return value of zero means that currently no LATM/LOAS frame can be + * returned. The latter is expected in case of multiple subframes being + * used. * - * \return void + * \return an TRANSPORTENC_ERROR error code */ -void transportEnc_LatmGetFrame( - HANDLE_LATM_STREAM hAss, - HANDLE_FDK_BITSTREAM hBs, - int *pBytes - ); +TRANSPORTENC_ERROR transportEnc_LatmGetFrame(HANDLE_LATM_STREAM hAss, + HANDLE_FDK_BITSTREAM hBs, + int *pBytes); /** * \brief Write a StreamMuxConfig into the given bitstream handle @@ -253,12 +268,7 @@ void transportEnc_LatmGetFrame( * \return void */ TRANSPORTENC_ERROR -CreateStreamMuxConfig( - HANDLE_LATM_STREAM hAss, - HANDLE_FDK_BITSTREAM hBs, - int bufferFullness, - CSTpCallBacks *cb - ); - +CreateStreamMuxConfig(HANDLE_LATM_STREAM hAss, HANDLE_FDK_BITSTREAM hBs, + int bufferFullness, CSTpCallBacks *cb); #endif /* TPENC_LATM_H */ |