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Diffstat (limited to 'libSBRdec/src/sbr_dec.h')
| -rw-r--r-- | libSBRdec/src/sbr_dec.h | 278 |
1 files changed, 134 insertions, 144 deletions
diff --git a/libSBRdec/src/sbr_dec.h b/libSBRdec/src/sbr_dec.h index edde637..156da03 100644 --- a/libSBRdec/src/sbr_dec.h +++ b/libSBRdec/src/sbr_dec.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 decoder library ****************************** + + Author(s): + + Description: + +*******************************************************************************/ /*! \file - \brief Sbr decoder + \brief Sbr decoder */ -#ifndef __SBR_DEC_H -#define __SBR_DEC_H +#ifndef SBR_DEC_H +#define SBR_DEC_H #include "sbrdecoder.h" @@ -95,120 +114,91 @@ amm-info@iis.fraunhofer.de #include "env_calc.h" #include "FDK_audio.h" - #include "sbrdec_drc.h" -#define SACDEC_ALIGNMENT_FIX +#include "pvc_dec.h" -typedef struct -{ - QMF_FILTER_BANK AnalysiscQMF; - QMF_FILTER_BANK SynthesisQMF; +#include "hbe.h" - SBR_CALCULATE_ENVELOPE SbrCalculateEnvelope; - SBR_LPP_TRANS LppTrans; +enum SBRDEC_QMF_SKIP { + qmfSkipNothing = 0, + qmfSkipAnalysis = 1 << 0, + qmfSkipSynthesis = 1 << 1 +}; - QMF_SCALE_FACTOR sbrScaleFactor; - QMF_SCALE_FACTOR sbrScaleFactorRight; +typedef struct { + SBR_CALCULATE_ENVELOPE SbrCalculateEnvelope; + SBR_LPP_TRANS LppTrans; + PVC_STATIC_DATA PvcStaticData; - /*! Delayed spectral data needed for the dynamic framing of SBR. Not required in case of CLDFB */ - FIXP_DBL * pSbrOverlapBuffer; + /* do scale handling in sbr an not in qmf */ + SHORT scale_ov; + SHORT scale_lb; + SHORT scale_hbe; - /* References to workbuffers */ - FIXP_DBL * WorkBuffer1; - FIXP_DBL * WorkBuffer2; + SHORT prev_frame_lSbr; + SHORT prev_frame_hbeSbr; - /* Delayed time input signal needed to align CLDFD with LD-MPS QMF. */ - INT_PCM coreDelayBuf[(96)]; + int codecFrameSize; - /* QMF filter states */ - FIXP_QAS anaQmfStates[(320)]; - FIXP_QSS * pSynQmfStates; + HANDLE_HBE_TRANSPOSER hHBE; - /* Reference pointer arrays for QMF time slots, - mixed among overlap and current slots. */ - FIXP_DBL * QmfBufferReal[(((1024)/(32))+(6))]; - FIXP_DBL * QmfBufferImag[(((1024)/(32))+(6))]; - int useLP; + HANDLE_FDK_QMF_DOMAIN_IN qmfDomainInCh; + HANDLE_FDK_QMF_DOMAIN_OUT qmfDomainOutCh; - /* QMF domain extension time slot reference pointer array */ + SBRDEC_DRC_CHANNEL sbrDrcChannel; - SBRDEC_DRC_CHANNEL sbrDrcChannel; +#if (SBRDEC_MAX_HB_FADE_FRAMES > 0) + INT highBandFadeCnt; /* counter for fading in high-band signal smoothly */ +#endif + FIXP_DBL **tmp_memory; /* shared memory between hbeLightTimeDelayBuffer and + hQmfHBESlotsReal */ + + FIXP_DBL **hQmfHBESlotsReal; + FIXP_DBL **hQmfHBESlotsImag; + + FIXP_DBL **codecQMFBufferReal; + FIXP_DBL **codecQMFBufferImag; + UCHAR savedStates; + int applySbrProc_old; } SBR_DEC; typedef SBR_DEC *HANDLE_SBR_DEC; - -typedef struct -{ - SBR_FRAME_DATA frameData[(1)+1]; +typedef struct { + SBR_FRAME_DATA frameData[(1) + 1]; SBR_PREV_FRAME_DATA prevFrameData; SBR_DEC SbrDec; -} -SBR_CHANNEL; +} SBR_CHANNEL; typedef SBR_CHANNEL *HANDLE_SBR_CHANNEL; -void -SbrDecodeAndProcess (HANDLE_SBR_DEC hSbrDec, - INT_PCM *timeIn, - HANDLE_SBR_HEADER_DATA hHeaderData, - HANDLE_SBR_FRAME_DATA hFrameData, - HANDLE_SBR_PREV_FRAME_DATA hPrevFrameData, - int applyProcessing, - int channelNr - , UCHAR useLP - ); - - -void -SbrConstructTimeOutput (HANDLE_SBR_DEC hSbrDec, /*!< handle to Decoder channel */ - INT_PCM *timeOut, /*!< pointer to output time signal */ - HANDLE_SBR_HEADER_DATA hHeaderData,/*!< Static control data */ - HANDLE_SBR_PREV_FRAME_DATA hPrevFrameData, /*!< Some control data of last frame */ - int channelNr - ,UCHAR useLP - ); - - -void -sbr_dec (HANDLE_SBR_DEC hSbrDec, /*!< handle to Decoder channel */ - INT_PCM *timeIn, /*!< pointer to input time signal */ - INT_PCM *timeOut, /*!< pointer to output time signal */ - HANDLE_SBR_DEC hSbrDecRight, /*!< handle to Decoder channel right */ - INT_PCM *timeOutRight, /*!< pointer to output time signal */ - const int strideIn, /*!< Time data traversal strideIn */ - const int strideOut, /*!< Time data traversal strideOut */ - HANDLE_SBR_HEADER_DATA hHeaderData,/*!< Static control data */ - HANDLE_SBR_FRAME_DATA hFrameData, /*!< Control data of current frame */ - HANDLE_SBR_PREV_FRAME_DATA hPrevFrameData, /*!< Some control data of last frame */ - const int applyProcessing, /*!< Flag for SBR operation */ - HANDLE_PS_DEC h_ps_d, - const UINT flags, - const int codecFrameSize - ); - - +void sbr_dec( + HANDLE_SBR_DEC hSbrDec, /*!< handle to Decoder channel */ + INT_PCM *timeIn, /*!< pointer to input time signal */ + INT_PCM *timeOut, /*!< pointer to output time signal */ + HANDLE_SBR_DEC hSbrDecRight, /*!< handle to Decoder channel right */ + INT_PCM *timeOutRight, /*!< pointer to output time signal */ + INT strideOut, /*!< Time data traversal strideOut */ + HANDLE_SBR_HEADER_DATA hHeaderData, /*!< Static control data */ + HANDLE_SBR_FRAME_DATA hFrameData, /*!< Control data of current frame */ + HANDLE_SBR_PREV_FRAME_DATA + hPrevFrameData, /*!< Some control data of last frame */ + const int applyProcessing, /*!< Flag for SBR operation */ + HANDLE_PS_DEC h_ps_d, const UINT flags, const int codecFrameSize); SBR_ERROR -createSbrDec (SBR_CHANNEL * hSbrChannel, - HANDLE_SBR_HEADER_DATA hHeaderData, - TRANSPOSER_SETTINGS *pSettings, - const int downsampleFac, - const UINT qmfFlags, - const UINT flags, - const int overlap, - int chan); - -int -deleteSbrDec (SBR_CHANNEL * hSbrChannel); +createSbrDec(SBR_CHANNEL *hSbrChannel, HANDLE_SBR_HEADER_DATA hHeaderData, + TRANSPOSER_SETTINGS *pSettings, const int downsampleFac, + const UINT qmfFlags, const UINT flags, const int overlap, int chan, + int codecFrameSize); + +int deleteSbrDec(SBR_CHANNEL *hSbrChannel); SBR_ERROR -resetSbrDec (HANDLE_SBR_DEC hSbrDec, - HANDLE_SBR_HEADER_DATA hHeaderData, - HANDLE_SBR_PREV_FRAME_DATA hPrevFrameData, - const int useLP, - const int downsampleFac); +resetSbrDec(HANDLE_SBR_DEC hSbrDec, HANDLE_SBR_HEADER_DATA hHeaderData, + HANDLE_SBR_PREV_FRAME_DATA hPrevFrameData, const int downsampleFac, + const UINT flags, HANDLE_SBR_FRAME_DATA hFrameData); #endif |