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Diffstat (limited to 'libSBRenc/src/bit_sbr.h')
| -rw-r--r-- | libSBRenc/src/bit_sbr.h | 207 |
1 files changed, 108 insertions, 99 deletions
diff --git a/libSBRenc/src/bit_sbr.h b/libSBRenc/src/bit_sbr.h index de4ac89..e90f52c 100644 --- a/libSBRenc/src/bit_sbr.h +++ b/libSBRenc/src/bit_sbr.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 @@ -79,14 +90,22 @@ Am Wolfsmantel 33 www.iis.fraunhofer.de/amm amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ +----------------------------------------------------------------------------- */ + +/**************************** SBR encoder library ****************************** + + Author(s): + + Description: + +*******************************************************************************/ /*! \file - \brief SBR bit writing + \brief SBR bit writing $Revision: 92790 $ */ -#ifndef __BIT_SBR_H -#define __BIT_SBR_H +#ifndef BIT_SBR_H +#define BIT_SBR_H #include "sbr_def.h" #include "cmondata.h" @@ -94,20 +113,22 @@ amm-info@iis.fraunhofer.de struct SBR_ENV_DATA; -struct SBR_BITSTREAM_DATA -{ +struct SBR_BITSTREAM_DATA { INT TotalBits; INT PayloadBits; INT FillBits; INT HeaderActive; - INT NrSendHeaderData; /**< input from commandline */ - INT CountSendHeaderData; /**< modulo count. If < 0 then no counting is done (no SBR headers) */ + INT HeaderActiveDelay; /**< sbr payload and its header is delayed depending on + encoder configuration*/ + INT NrSendHeaderData; /**< input from commandline */ + INT CountSendHeaderData; /**< modulo count. If < 0 then no counting is done + (no SBR headers) */ + INT rightBorderFIX; /**< force VARFIX or FIXFIX frames */ }; -typedef struct SBR_BITSTREAM_DATA *HANDLE_SBR_BITSTREAM_DATA; +typedef struct SBR_BITSTREAM_DATA *HANDLE_SBR_BITSTREAM_DATA; -struct SBR_HEADER_DATA -{ +struct SBR_HEADER_DATA { AMP_RES sbr_amp_res; INT sbr_start_frequency; INT sbr_stop_frequency; @@ -133,13 +154,10 @@ struct SBR_HEADER_DATA /* element of singlechannelelement */ - }; typedef struct SBR_HEADER_DATA *HANDLE_SBR_HEADER_DATA; -struct SBR_ENV_DATA -{ - +struct SBR_ENV_DATA { INT sbr_xpos_ctrl; FREQ_RES freq_res_fixfix[2]; UCHAR fResTransIsLow; @@ -167,7 +185,6 @@ struct SBR_ENV_DATA const UCHAR *hufftableLevelFreqL; const UCHAR *hufftableBalanceFreqL; - const UCHAR *hufftableNoiseTimeL; const INT *hufftableNoiseTimeC; const UCHAR *hufftableNoiseFreqL; @@ -188,7 +205,6 @@ struct SBR_ENV_DATA INT addHarmonicFlag; UCHAR addHarmonic[MAX_FREQ_COEFFS]; - /* calculated helper vars */ INT si_sbr_start_env_bits_balance; INT si_sbr_start_env_bits; @@ -205,7 +221,10 @@ struct SBR_ENV_DATA INT balance; AMP_RES init_sbr_amp_res; AMP_RES currentAmpResFF; - FIXP_DBL ton_HF[SBR_GLOBAL_TONALITY_VALUES]; /* tonality is scaled by 2^19/0.524288f (fract part of RELAXATION) */ + FIXP_DBL + ton_HF[SBR_GLOBAL_TONALITY_VALUES]; /* tonality is scaled by + 2^19/0.524288f (fract part of + RELAXATION) */ FIXP_DBL global_tonality; /* extended data */ @@ -218,41 +237,31 @@ struct SBR_ENV_DATA }; typedef struct SBR_ENV_DATA *HANDLE_SBR_ENV_DATA; - - -INT FDKsbrEnc_WriteEnvSingleChannelElement(struct SBR_HEADER_DATA *sbrHeaderData, - struct T_PARAMETRIC_STEREO *hParametricStereo, - struct SBR_BITSTREAM_DATA *sbrBitstreamData, - struct SBR_ENV_DATA *sbrEnvData, - struct COMMON_DATA *cmonData, - UINT sbrSyntaxFlags); - - -INT FDKsbrEnc_WriteEnvChannelPairElement(struct SBR_HEADER_DATA *sbrHeaderData, - struct T_PARAMETRIC_STEREO *hParametricStereo, - struct SBR_BITSTREAM_DATA *sbrBitstreamData, - struct SBR_ENV_DATA *sbrEnvDataLeft, - struct SBR_ENV_DATA *sbrEnvDataRight, - struct COMMON_DATA *cmonData, - UINT sbrSyntaxFlags); - - - -INT FDKsbrEnc_CountSbrChannelPairElement (struct SBR_HEADER_DATA *sbrHeaderData, - struct T_PARAMETRIC_STEREO *hParametricStereo, - struct SBR_BITSTREAM_DATA *sbrBitstreamData, - struct SBR_ENV_DATA *sbrEnvDataLeft, - struct SBR_ENV_DATA *sbrEnvDataRight, - struct COMMON_DATA *cmonData, - UINT sbrSyntaxFlags); - - +INT FDKsbrEnc_WriteEnvSingleChannelElement( + struct SBR_HEADER_DATA *sbrHeaderData, + struct T_PARAMETRIC_STEREO *hParametricStereo, + struct SBR_BITSTREAM_DATA *sbrBitstreamData, + struct SBR_ENV_DATA *sbrEnvData, struct COMMON_DATA *cmonData, + UINT sbrSyntaxFlags); + +INT FDKsbrEnc_WriteEnvChannelPairElement( + struct SBR_HEADER_DATA *sbrHeaderData, + struct T_PARAMETRIC_STEREO *hParametricStereo, + struct SBR_BITSTREAM_DATA *sbrBitstreamData, + struct SBR_ENV_DATA *sbrEnvDataLeft, struct SBR_ENV_DATA *sbrEnvDataRight, + struct COMMON_DATA *cmonData, UINT sbrSyntaxFlags); + +INT FDKsbrEnc_CountSbrChannelPairElement( + struct SBR_HEADER_DATA *sbrHeaderData, + struct T_PARAMETRIC_STEREO *hParametricStereo, + struct SBR_BITSTREAM_DATA *sbrBitstreamData, + struct SBR_ENV_DATA *sbrEnvDataLeft, struct SBR_ENV_DATA *sbrEnvDataRight, + struct COMMON_DATA *cmonData, UINT sbrSyntaxFlags); /* debugging and tuning functions */ /*#define SBR_ENV_STATISTICS */ - /*#define SBR_PAYLOAD_MONITOR*/ #endif |