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authorMatthias P. Braendli <matthias.braendli@mpb.li>2016-09-10 20:15:44 +0200
committerMatthias P. Braendli <matthias.braendli@mpb.li>2016-09-10 20:15:44 +0200
commit14c7b800eaa23e9da7c92c7c4df397d0c191f097 (patch)
treed840b6ec41ff74d1184ca1dcd7731d08f1e9ebbb /libAACdec/src/channelinfo.h
parent78a801e4d716c6f2403cc56cf6c5b6f138f24b2f (diff)
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Remove FDK-AAC
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-
-/* -----------------------------------------------------------------------------------------------------------
-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.
-
- 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): Josef Hoepfl
- Description: individual channel stream info
-
-******************************************************************************/
-
-#ifndef CHANNELINFO_H
-#define CHANNELINFO_H
-
-#include "common_fix.h"
-
-#include "aac_rom.h"
-#include "aacdecoder_lib.h"
-#include "FDK_bitstream.h"
-#include "overlapadd.h"
-
-#include "mdct.h"
-#include "stereo.h"
-#include "pulsedata.h"
-#include "aacdec_tns.h"
-
-#include "aacdec_pns.h"
-
-#include "aacdec_hcr_types.h"
-#include "rvlc_info.h"
-
-
-#include "conceal_types.h"
-
- #include "aacdec_drc_types.h"
-
-/* Output rendering mode */
-typedef enum {
- AACDEC_RENDER_INVALID = 0,
- AACDEC_RENDER_IMDCT,
- AACDEC_RENDER_ELDFB,
- AACDEC_RENDER_LPD,
- AACDEC_RENDER_INTIMDCT
-} AACDEC_RENDER_MODE;
-
-enum {
- MAX_QUANTIZED_VALUE = 8191
-};
-
-enum
-{
- OnlyLongSequence = 0,
- LongStartSequence,
- EightShortSequence,
- LongStopSequence
-};
-
-
-typedef struct
-{
- const SHORT *ScaleFactorBands_Long;
- const SHORT *ScaleFactorBands_Short;
- UCHAR NumberOfScaleFactorBands_Long;
- UCHAR NumberOfScaleFactorBands_Short;
- UINT samplingRateIndex;
- UINT samplingRate;
-} SamplingRateInfo;
-
-typedef struct
-{
- UCHAR CommonWindow;
- UCHAR GlobalGain;
-
-} CRawDataInfo;
-
-typedef struct
-{
- UCHAR WindowGroupLength[8];
- UCHAR WindowGroups;
- UCHAR Valid;
-
- UCHAR WindowShape; /* 0: sine window, 1: KBD, 2: low overlap */
- UCHAR WindowSequence; /* See enum above, 0: long, 1: start, 2: short, 3: stop */
- UCHAR MaxSfBands;
- UCHAR ScaleFactorGrouping;
-
- UCHAR TotalSfBands;
-
-} CIcsInfo;
-
-
-enum
-{
- ZERO_HCB = 0,
- ESCBOOK = 11,
- NSPECBOOKS = ESCBOOK + 1,
- BOOKSCL = NSPECBOOKS,
- NOISE_HCB = 13,
- INTENSITY_HCB2 = 14,
- INTENSITY_HCB = 15,
- LAST_HCB
-};
-
-#define TNS_SCALE 3
-
-/*
- * This struct must be allocated one for every channel and must be persistent.
- */
-typedef struct
-{
- FIXP_DBL *pOverlapBuffer;
- mdct_t IMdct;
-
-
-
- CDrcChannelData drcData;
- CConcealmentInfo concealmentInfo;
-
-} CAacDecoderStaticChannelInfo;
-
-
-/*
- * This union must be allocated for every element (up to 2 channels).
- */
-typedef struct {
-
- /* Common bit stream data */
- SHORT aScaleFactor[(8*16)]; /* Spectral scale factors for each sfb in each window. */
- SHORT aSfbScale[(8*16)]; /* could be free after ApplyTools() */
- UCHAR aCodeBook[(8*16)]; /* section data: codebook for each window and sfb. */
- CTnsData TnsData;
- CRawDataInfo RawDataInfo;
-
- shouldBeUnion {
-
- struct {
- CPulseData PulseData;
- SHORT aNumLineInSec4Hcr[MAX_SFB_HCR]; /* needed once for all channels except for Drm syntax */
- UCHAR aCodeBooks4Hcr[MAX_SFB_HCR]; /* needed once for all channels except for Drm syntax. Same as "aCodeBook" ? */
- SHORT lenOfReorderedSpectralData;
- SCHAR lenOfLongestCodeword;
- SCHAR numberSection;
- SCHAR rvlcCurrentScaleFactorOK;
- SCHAR rvlcIntensityUsed;
- } aac;
- } specificTo;
-
-} CAacDecoderDynamicData;
-
-typedef shouldBeUnion {
- CAacDecoderDynamicData pAacDecoderDynamicData[2];
-
- /* Common signal data, can be used once the bit stream data from above is not used anymore. */
- FIXP_DBL mdctOutTemp[1024];
- FIXP_DBL sbrWorkBuffer[1024*2];
-
-} CWorkBufferCore1;
-
-/* Common data referenced by all channels */
-typedef struct {
-
- CWorkBufferCore1 *workBufferCore1;
- FIXP_DBL* workBufferCore2;
-
- CPnsInterChannelData pnsInterChannelData;
- INT pnsCurrentSeed;
- INT pnsRandomSeed[(8*16)];
-
- CJointStereoData jointStereoData; /* One for one element */
-
- shouldBeUnion {
- struct {
- CErHcrInfo erHcrInfo;
- CErRvlcInfo erRvlcInfo;
- SHORT aRvlcScfEsc[RVLC_MAX_SFB]; /* needed once for all channels */
- SHORT aRvlcScfFwd[RVLC_MAX_SFB]; /* needed once for all channels */
- SHORT aRvlcScfBwd[RVLC_MAX_SFB]; /* needed once for all channels */
- } aac;
-
- } overlay;
-
-} CAacDecoderCommonData;
-
-
-/*
- * This struct must be allocated one for every channels of every element and must be persistent.
- * Among its members, the following memory areas can be overwritten under the given conditions:
- * - pSpectralCoefficient The memory pointed to can be overwritten after time signal rendering.
- * - data can be overwritten after time signal rendering.
- * - pDynData memory pointed to can be overwritten after each CChannelElement_Decode() call.
- * - pComData->overlay memory pointed to can be overwritten after each CChannelElement_Decode() call..
- */
-typedef struct
-{
- SPECTRAL_PTR pSpectralCoefficient; /* Spectral coefficients of each window */
- SHORT specScale[8]; /* Scale shift values of each spectrum window */
- CIcsInfo icsInfo;
- INT granuleLength; /* Size of smallest spectrum piece */
- UCHAR ElementInstanceTag;
-
- AACDEC_RENDER_MODE renderMode; /* Output signal rendering mode */
-
- shouldBeUnion {
- struct {
- CPnsData PnsData; /* Not required for USAC */
- } aac;
-
- struct {
- } usac;
- } data;
-
- CAacDecoderDynamicData *pDynData; /* Data required for one element and discarded after decoding */
- CAacDecoderCommonData *pComData; /* Data required for one channel at a time during decode */
-
-} CAacDecoderChannelInfo;
-
-/* channelinfo.cpp */
-
-AAC_DECODER_ERROR getSamplingRateInfo(SamplingRateInfo *t, UINT samplesPerFrame, UINT samplingRateIndex, UINT samplingRate);
-
-/**
- * \brief Read max SFB from bit stream and assign TotalSfBands according
- * to the window sequence and sample rate.
- * \param hBs bit stream handle as data source
- * \param pIcsInfo IcsInfo structure to read the window sequence and store MaxSfBands and TotalSfBands
- * \param pSamplingRateInfo read only
- */
-AAC_DECODER_ERROR IcsReadMaxSfb (
- HANDLE_FDK_BITSTREAM hBs,
- CIcsInfo *pIcsInfo,
- const SamplingRateInfo *pSamplingRateInfo
- );
-
-AAC_DECODER_ERROR IcsRead(
- HANDLE_FDK_BITSTREAM bs,
- CIcsInfo *pIcsInfo,
- const SamplingRateInfo* SamplingRateInfoTable,
- const UINT flags
- );
-
-/* stereo.cpp, only called from this file */
-
-/*!
- \brief Applies MS stereo.
-
- The function applies MS stereo.
-
- \param pAacDecoderChannelInfo aac channel info.
- \param pScaleFactorBandOffsets pointer to scalefactor band offsets.
- \param pWindowGroupLength pointer to window group length array.
- \param windowGroups number of window groups.
- \param scaleFactorBandsTransmittedL number of transmitted scalefactor bands in left channel.
- \param scaleFactorBandsTransmittedR number of transmitted scalefactor bands in right channel.
- May differ from scaleFactorBandsTransmittedL only for USAC.
- \return none
-*/
-void CJointStereo_ApplyMS(CAacDecoderChannelInfo *pAacDecoderChannelInfo[2],
- const short *pScaleFactorBandOffsets,
- const UCHAR *pWindowGroupLength,
- const int windowGroups,
- const int scaleFactorBandsTransmittedL,
- const int scaleFactorBandsTransmittedR);
-
-/*!
- \brief Applies intensity stereo
-
- The function applies intensity stereo.
-
- \param pAacDecoderChannelInfo aac channel info.
- \param pScaleFactorBandOffsets pointer to scalefactor band offsets.
- \param pWindowGroupLength pointer to window group length array.
- \param windowGroups number of window groups.
- \param scaleFactorBandsTransmitted number of transmitted scalefactor bands.
- \param CommonWindow common window bit.
- \return none
-*/
-void CJointStereo_ApplyIS(CAacDecoderChannelInfo *pAacDecoderChannelInfo[2],
- const short *pScaleFactorBandOffsets,
- const UCHAR *pWindowGroupLength,
- const int windowGroups,
- const int scaleFactorBandsTransmitted,
- const UINT CommonWindow);
-
-
-/* aacdec_pns.cpp */
-int CPns_IsPnsUsed (const CPnsData *pPnsData,
- const int group,
- const int band);
-
-void CPns_SetCorrelation(CPnsData *pPnsData,
- const int group,
- const int band,
- const int outofphase);
-
-/****************** inline functions ******************/
-
-inline UCHAR IsValid(const CIcsInfo *pIcsInfo)
-{
- return pIcsInfo->Valid;
-}
-
-inline UCHAR IsLongBlock(const CIcsInfo *pIcsInfo)
-{
- return (pIcsInfo->WindowSequence != EightShortSequence);
-}
-
-inline UCHAR GetWindowShape(const CIcsInfo *pIcsInfo)
-{
- return pIcsInfo->WindowShape;
-}
-
-inline UCHAR GetWindowSequence(const CIcsInfo *pIcsInfo)
-{
- return pIcsInfo->WindowSequence;
-}
-
-inline const SHORT *GetScaleFactorBandOffsets(const CIcsInfo *pIcsInfo, const SamplingRateInfo* samplingRateInfo)
-{
- if (IsLongBlock(pIcsInfo))
- {
- return samplingRateInfo->ScaleFactorBands_Long;
- }
- else
- {
- return samplingRateInfo->ScaleFactorBands_Short;
- }
-}
-
-inline int GetWindowsPerFrame(const CIcsInfo *pIcsInfo)
-{
- return (pIcsInfo->WindowSequence == EightShortSequence) ? 8 : 1;
-}
-
-inline UCHAR GetWindowGroups(const CIcsInfo *pIcsInfo)
-{
- return pIcsInfo->WindowGroups;
-}
-
-inline UCHAR GetWindowGroupLength(const CIcsInfo *pIcsInfo, const INT index)
-{
- return pIcsInfo->WindowGroupLength[index];
-}
-
-inline const UCHAR *GetWindowGroupLengthTable(const CIcsInfo *pIcsInfo)
-{
- return pIcsInfo->WindowGroupLength;
-}
-
-inline UCHAR GetScaleFactorBandsTransmitted(const CIcsInfo *pIcsInfo)
-{
- return pIcsInfo->MaxSfBands;
-}
-
-inline UCHAR GetScaleMaxFactorBandsTransmitted(const CIcsInfo *pIcsInfo0, const CIcsInfo *pIcsInfo1)
-{
- return fMax(pIcsInfo0->MaxSfBands, pIcsInfo1->MaxSfBands);
-}
-
-inline UCHAR GetScaleFactorBandsTotal(const CIcsInfo *pIcsInfo)
-{
- return pIcsInfo->TotalSfBands;
-}
-
-/* Note: This function applies to AAC-LC only ! */
-inline UCHAR GetMaximumTnsBands(const CIcsInfo *pIcsInfo, const int samplingRateIndex)
-{
- return tns_max_bands_tbl[samplingRateIndex][!IsLongBlock(pIcsInfo)];
-}
-
-#endif /* #ifndef CHANNELINFO_H */
-