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Diffstat (limited to 'libAACdec/src/aacdecoder_lib.cpp')
| -rw-r--r-- | libAACdec/src/aacdecoder_lib.cpp | 1003 |
1 files changed, 0 insertions, 1003 deletions
diff --git a/libAACdec/src/aacdecoder_lib.cpp b/libAACdec/src/aacdecoder_lib.cpp deleted file mode 100644 index ec8f41e..0000000 --- a/libAACdec/src/aacdecoder_lib.cpp +++ /dev/null @@ -1,1003 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -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): Manuel Jander - Description: - -******************************************************************************/ - -#include "aacdecoder_lib.h" - -#include "aac_ram.h" -#include "aacdecoder.h" -#include "tpdec_lib.h" -#include "FDK_core.h" /* FDK_tools version info */ - - - #include "sbrdecoder.h" - - - - -#include "conceal.h" - - #include "aacdec_drc.h" - - - -/* Decoder library info */ -#define AACDECODER_LIB_VL0 2 -#define AACDECODER_LIB_VL1 5 -#define AACDECODER_LIB_VL2 5 -#define AACDECODER_LIB_TITLE "AAC Decoder Lib" -#define AACDECODER_LIB_BUILD_DATE __DATE__ -#define AACDECODER_LIB_BUILD_TIME __TIME__ - -static AAC_DECODER_ERROR -setConcealMethod ( const HANDLE_AACDECODER self, - const INT method ); - - -LINKSPEC_CPP AAC_DECODER_ERROR aacDecoder_GetFreeBytes ( const HANDLE_AACDECODER self, UINT *pFreeBytes){ - - /* reset free bytes */ - *pFreeBytes = 0; - - /* check handle */ - if(!self) - return AAC_DEC_INVALID_HANDLE; - - /* return nr of free bytes */ - HANDLE_FDK_BITSTREAM hBs = transportDec_GetBitstream(self->hInput, 0); - *pFreeBytes = FDKgetFreeBits(hBs) >> 3; - - /* success */ - return AAC_DEC_OK; -} - -/** - * Config Decoder using a CSAudioSpecificConfig struct. - */ -static -LINKSPEC_CPP AAC_DECODER_ERROR aacDecoder_Config(HANDLE_AACDECODER self, const CSAudioSpecificConfig *pAscStruct) -{ - AAC_DECODER_ERROR err; - - /* Initialize AAC core decoder, and update self->streaminfo */ - err = CAacDecoder_Init(self, pAscStruct); - - return err; -} - -LINKSPEC_CPP AAC_DECODER_ERROR aacDecoder_ConfigRaw ( - HANDLE_AACDECODER self, - UCHAR *conf[], - const UINT length[] ) -{ - AAC_DECODER_ERROR err = AAC_DEC_OK; - TRANSPORTDEC_ERROR errTp; - UINT layer, nrOfLayers = self->nrOfLayers; - - for(layer = 0; layer < nrOfLayers; layer++){ - if(length[layer] > 0){ - errTp = transportDec_OutOfBandConfig(self->hInput, conf[layer], length[layer], layer); - if (errTp != TRANSPORTDEC_OK) { - switch (errTp) { - case TRANSPORTDEC_NEED_TO_RESTART: - err = AAC_DEC_NEED_TO_RESTART; - break; - case TRANSPORTDEC_UNSUPPORTED_FORMAT: - err = AAC_DEC_UNSUPPORTED_FORMAT; - break; - default: - err = AAC_DEC_UNKNOWN; - break; - } - /* if baselayer is OK we continue decoding */ - if(layer >= 1){ - self->nrOfLayers = layer; - } - break; - } - } - } - - return err; -} - - - -static INT aacDecoder_ConfigCallback(void *handle, const CSAudioSpecificConfig *pAscStruct) -{ - HANDLE_AACDECODER self = (HANDLE_AACDECODER)handle; - AAC_DECODER_ERROR err = AAC_DEC_OK; - TRANSPORTDEC_ERROR errTp; - - { - { - err = aacDecoder_Config(self, pAscStruct); - } - } - if (err == AAC_DEC_OK) { - if ( self->flags & (AC_USAC|AC_RSVD50|AC_LD|AC_ELD) - && CConcealment_GetDelay(&self->concealCommonData) > 0 ) - { - /* Revert to error concealment method Noise Substitution. - Because interpolation is not implemented for USAC/RSVD50 or - the additional delay is unwanted for low delay codecs. */ - setConcealMethod(self, 1); -#ifdef DEBUG - FDKprintf(" Concealment method was reverted to 1 !\n"); -#endif - } - errTp = TRANSPORTDEC_OK; - } else { - if (IS_INIT_ERROR(err)) { - errTp = TRANSPORTDEC_UNSUPPORTED_FORMAT; - } /* Fatal errors */ - else if (err == AAC_DEC_NEED_TO_RESTART) { - errTp = TRANSPORTDEC_NEED_TO_RESTART; - } else { - errTp = TRANSPORTDEC_UNKOWN_ERROR; - } - } - - return errTp; -} - - - -LINKSPEC_CPP AAC_DECODER_ERROR -aacDecoder_AncDataInit ( HANDLE_AACDECODER self, - UCHAR *buffer, - int size ) -{ - CAncData *ancData = &self->ancData; - - return CAacDecoder_AncDataInit(ancData, buffer, size); -} - - -LINKSPEC_CPP AAC_DECODER_ERROR -aacDecoder_AncDataGet ( HANDLE_AACDECODER self, - int index, - UCHAR **ptr, - int *size ) -{ - CAncData *ancData = &self->ancData; - - return CAacDecoder_AncDataGet(ancData, index, ptr, size); -} - - -static AAC_DECODER_ERROR -setConcealMethod ( const HANDLE_AACDECODER self, /*!< Handle of the decoder instance */ - const INT method ) -{ - AAC_DECODER_ERROR errorStatus = AAC_DEC_OK; - CConcealParams *pConcealData = NULL; - HANDLE_SBRDECODER hSbrDec = NULL; - HANDLE_AAC_DRC hDrcInfo = NULL; - HANDLE_PCM_DOWNMIX hPcmDmx = NULL; - CConcealmentMethod backupMethod = ConcealMethodNone; - int backupDelay = 0; - int bsDelay = 0; - - /* check decoder handle */ - if (self != NULL) { - pConcealData = &self->concealCommonData; - hSbrDec = self->hSbrDecoder; - hDrcInfo = self->hDrcInfo; - hPcmDmx = self->hPcmUtils; - } - - - /* Get current method/delay */ - backupMethod = CConcealment_GetMethod(pConcealData); - backupDelay = CConcealment_GetDelay(pConcealData); - - /* Be sure to set AAC and SBR concealment method simultaneously! */ - errorStatus = - CConcealment_SetParams( - pConcealData, - (int)method, // concealMethod - AACDEC_CONCEAL_PARAM_NOT_SPECIFIED, // concealFadeOutSlope - AACDEC_CONCEAL_PARAM_NOT_SPECIFIED, // concealFadeInSlope - AACDEC_CONCEAL_PARAM_NOT_SPECIFIED, // concealMuteRelease - AACDEC_CONCEAL_PARAM_NOT_SPECIFIED // concealComfNoiseLevel - ); - if ( (errorStatus != AAC_DEC_OK) - && (errorStatus != AAC_DEC_INVALID_HANDLE) ) { - goto bail; - } - - /* Get new delay */ - bsDelay = CConcealment_GetDelay(pConcealData); - - { - SBR_ERROR sbrErr = SBRDEC_OK; - - /* set SBR bitstream delay */ - sbrErr = sbrDecoder_SetParam ( - hSbrDec, - SBR_SYSTEM_BITSTREAM_DELAY, - bsDelay - ); - - switch (sbrErr) { - case SBRDEC_OK: - case SBRDEC_NOT_INITIALIZED: - if (self != NULL) { - /* save the param value and set later - (when SBR has been initialized) */ - self->sbrParams.bsDelay = bsDelay; - } - break; - default: - errorStatus = AAC_DEC_SET_PARAM_FAIL; - goto bail; - } - } - - errorStatus = - aacDecoder_drcSetParam ( - hDrcInfo, - DRC_BS_DELAY, - bsDelay - ); - if ( (errorStatus != AAC_DEC_OK) - && (errorStatus != AAC_DEC_INVALID_HANDLE) ) { - goto bail; - } - - if (errorStatus == AAC_DEC_OK) { - PCMDMX_ERROR err = - pcmDmx_SetParam ( - hPcmDmx, - DMX_BS_DATA_DELAY, - bsDelay - ); - switch (err) { - case PCMDMX_INVALID_HANDLE: - errorStatus = AAC_DEC_INVALID_HANDLE; - case PCMDMX_OK: - break; - default: - errorStatus = AAC_DEC_SET_PARAM_FAIL; - goto bail; - } - } - - -bail: - if ( (errorStatus != AAC_DEC_OK) - && (errorStatus != AAC_DEC_INVALID_HANDLE) ) - { - /* Revert to the initial state */ - CConcealment_SetParams ( - pConcealData, - (int)backupMethod, - AACDEC_CONCEAL_PARAM_NOT_SPECIFIED, - AACDEC_CONCEAL_PARAM_NOT_SPECIFIED, - AACDEC_CONCEAL_PARAM_NOT_SPECIFIED, - AACDEC_CONCEAL_PARAM_NOT_SPECIFIED - ); - /* Revert SBR bitstream delay */ - sbrDecoder_SetParam ( - hSbrDec, - SBR_SYSTEM_BITSTREAM_DELAY, - backupDelay - ); - /* Revert DRC bitstream delay */ - aacDecoder_drcSetParam ( - hDrcInfo, - DRC_BS_DELAY, - backupDelay - ); - /* Revert PCM mixdown bitstream delay */ - pcmDmx_SetParam ( - hPcmDmx, - DMX_BS_DATA_DELAY, - backupDelay - ); - } - - return errorStatus; -} - - -LINKSPEC_CPP AAC_DECODER_ERROR -aacDecoder_SetParam ( const HANDLE_AACDECODER self, /*!< Handle of the decoder instance */ - const AACDEC_PARAM param, /*!< Parameter to set */ - const INT value) /*!< Parameter valued */ -{ - AAC_DECODER_ERROR errorStatus = AAC_DEC_OK; - CConcealParams *pConcealData = NULL; - HANDLE_AAC_DRC hDrcInfo = NULL; - HANDLE_PCM_DOWNMIX hPcmDmx = NULL; - - /* check decoder handle */ - if (self != NULL) { - pConcealData = &self->concealCommonData; - hDrcInfo = self->hDrcInfo; - hPcmDmx = self->hPcmUtils; - } else { - errorStatus = AAC_DEC_INVALID_HANDLE; - } - - /* configure the subsystems */ - switch (param) - { - case AAC_PCM_OUTPUT_INTERLEAVED: - if (value < 0 || value > 1) { - return AAC_DEC_SET_PARAM_FAIL; - } - if (self == NULL) { - return AAC_DEC_INVALID_HANDLE; - } - self->outputInterleaved = value; - break; - - case AAC_PCM_OUTPUT_CHANNELS: - if (value < -1 || value > (6)) { - return AAC_DEC_SET_PARAM_FAIL; - } - { - PCMDMX_ERROR err; - - err = pcmDmx_SetParam ( - hPcmDmx, - NUMBER_OF_OUTPUT_CHANNELS, - value ); - - switch (err) { - case PCMDMX_OK: - break; - case PCMDMX_INVALID_HANDLE: - return AAC_DEC_INVALID_HANDLE; - default: - return AAC_DEC_SET_PARAM_FAIL; - } - } - break; - - case AAC_PCM_DUAL_CHANNEL_OUTPUT_MODE: - { - PCMDMX_ERROR err; - - err = pcmDmx_SetParam ( - hPcmDmx, - DUAL_CHANNEL_DOWNMIX_MODE, - value ); - - switch (err) { - case PCMDMX_OK: - break; - case PCMDMX_INVALID_HANDLE: - return AAC_DEC_INVALID_HANDLE; - default: - return AAC_DEC_SET_PARAM_FAIL; - } - } - break; - - case AAC_PCM_OUTPUT_CHANNEL_MAPPING: - switch (value) { - case 0: - if (self != NULL) { - self->channelOutputMapping = channelMappingTablePassthrough; - } - break; - case 1: - if (self != NULL) { - self->channelOutputMapping = channelMappingTableWAV; - } - break; - default: - errorStatus = AAC_DEC_SET_PARAM_FAIL; - break; - } - break; - - - case AAC_QMF_LOWPOWER: - if (value < -1 || value > 1) { - return AAC_DEC_SET_PARAM_FAIL; - } - if (self == NULL) { - return AAC_DEC_INVALID_HANDLE; - } - - /** - * Set QMF mode (might be overriden) - * 0:HQ (complex) - * 1:LP (partially complex) - */ - self->qmfModeUser = (QMF_MODE)value; - break; - - - case AAC_DRC_ATTENUATION_FACTOR: - /* DRC compression factor (where 0 is no and 127 is max compression) */ - errorStatus = - aacDecoder_drcSetParam ( - hDrcInfo, - DRC_CUT_SCALE, - value - ); - break; - - case AAC_DRC_BOOST_FACTOR: - /* DRC boost factor (where 0 is no and 127 is max boost) */ - errorStatus = - aacDecoder_drcSetParam ( - hDrcInfo, - DRC_BOOST_SCALE, - value - ); - break; - - case AAC_DRC_REFERENCE_LEVEL: - /* DRC reference level quantized in 0.25dB steps using values [0..127] it is '-' for analog scaling */ - errorStatus = - aacDecoder_drcSetParam ( - hDrcInfo, - TARGET_REF_LEVEL, - value - ); - break; - - case AAC_DRC_HEAVY_COMPRESSION: - /* Don't need to overwrite cut/boost values */ - errorStatus = - aacDecoder_drcSetParam ( - hDrcInfo, - APPLY_HEAVY_COMPRESSION, - value - ); - break; - - - case AAC_TPDEC_CLEAR_BUFFER: - transportDec_SetParam(self->hInput, TPDEC_PARAM_RESET, 1); - self->streamInfo.numLostAccessUnits = 0; - self->streamInfo.numBadBytes = 0; - self->streamInfo.numTotalBytes = 0; - /* aacDecoder_SignalInterruption(self); */ - break; - - case AAC_CONCEAL_METHOD: - /* Changing the concealment method can introduce additional bitstream delay. And - that in turn affects sub libraries and modules which makes the whole thing quite - complex. So the complete changing routine is packed into a helper function which - keeps all modules and libs in a consistent state even in the case an error occures. */ - errorStatus = setConcealMethod ( self, value ); - break; - - default: - return AAC_DEC_SET_PARAM_FAIL; - } /* switch(param) */ - - return (errorStatus); -} - - -LINKSPEC_CPP HANDLE_AACDECODER aacDecoder_Open(TRANSPORT_TYPE transportFmt, UINT nrOfLayers) -{ - AAC_DECODER_INSTANCE *aacDec = NULL; - HANDLE_TRANSPORTDEC pIn; - int err = 0; - - /* Allocate transport layer struct. */ - pIn = transportDec_Open(transportFmt, TP_FLAG_MPEG4); - if (pIn == NULL) { - return NULL; - } - - transportDec_SetParam(pIn, TPDEC_PARAM_IGNORE_BUFFERFULLNESS, 1); - - /* Allocate AAC decoder core struct. */ - aacDec = CAacDecoder_Open(transportFmt); - - if (aacDec == NULL) { - transportDec_Close(&pIn); - goto bail; - } - aacDec->hInput = pIn; - - aacDec->nrOfLayers = nrOfLayers; - - aacDec->channelOutputMapping = channelMappingTableWAV; - - /* Register Config Update callback. */ - transportDec_RegisterAscCallback(pIn, aacDecoder_ConfigCallback, (void*)aacDec); - - /* open SBR decoder */ - if ( SBRDEC_OK != sbrDecoder_Open ( &aacDec->hSbrDecoder )) { - err = -1; - goto bail; - } - aacDec->qmfModeUser = NOT_DEFINED; - transportDec_RegisterSbrCallback(aacDec->hInput, (cbSbr_t)sbrDecoder_Header, (void*)aacDec->hSbrDecoder); - - - pcmDmx_Open( &aacDec->hPcmUtils ); - if (aacDec->hPcmUtils == NULL) { - err = -1; - goto bail; - } - - - - /* Assure that all modules have same delay */ - if ( setConcealMethod(aacDec, CConcealment_GetMethod(&aacDec->concealCommonData)) ) { - err = -1; - goto bail; - } - -bail: - if (err == -1) { - aacDecoder_Close(aacDec); - aacDec = NULL; - } - return aacDec; -} - -LINKSPEC_CPP AAC_DECODER_ERROR aacDecoder_Fill( - HANDLE_AACDECODER self, - UCHAR *pBuffer[], - const UINT bufferSize[], - UINT *pBytesValid - ) -{ - TRANSPORTDEC_ERROR tpErr; - /* loop counter for layers; if not TT_MP4_RAWPACKETS used as index for only - available layer */ - INT layer = 0; - INT nrOfLayers = self->nrOfLayers; - - { - for (layer = 0; layer < nrOfLayers; layer++){ - { - tpErr = transportDec_FillData( self->hInput, pBuffer[layer], bufferSize[layer], &pBytesValid[layer], layer ); - if (tpErr != TRANSPORTDEC_OK) { - return AAC_DEC_UNKNOWN; /* Must be an internal error */ - } - } - } - } - - return AAC_DEC_OK; -} - - -static void aacDecoder_SignalInterruption(HANDLE_AACDECODER self) -{ - CAacDecoder_SignalInterruption(self); - - if ( self->hSbrDecoder != NULL ) { - sbrDecoder_SetParam(self->hSbrDecoder, SBR_BS_INTERRUPTION, 0); - } -} - -static void aacDecoder_UpdateBitStreamCounters(CStreamInfo *pSi, HANDLE_FDK_BITSTREAM hBs, int nBits, AAC_DECODER_ERROR ErrorStatus) -{ - /* calculate bit difference (amount of bits moved forward) */ - nBits = nBits - FDKgetValidBits(hBs); - - /* Note: The amount of bits consumed might become negative when parsing a - bit stream with several sub frames, and we find out at the last sub frame - that the total frame length does not match the sum of sub frame length. - If this happens, the transport decoder might want to rewind to the supposed - ending of the transport frame, and this position might be before the last - access unit beginning. */ - - /* Calc bitrate. */ - if (pSi->frameSize > 0) { - pSi->bitRate = (nBits * pSi->sampleRate)/pSi->frameSize; - } - - /* bit/byte counters */ - { - int nBytes; - - nBytes = nBits>>3; - pSi->numTotalBytes += nBytes; - if (IS_OUTPUT_VALID(ErrorStatus)) { - pSi->numTotalAccessUnits++; - } - if (IS_DECODE_ERROR(ErrorStatus)) { - pSi->numBadBytes += nBytes; - pSi->numBadAccessUnits++; - } - } -} - -static INT aacDecoder_EstimateNumberOfLostFrames(HANDLE_AACDECODER self) -{ - INT n; - - transportDec_GetMissingAccessUnitCount( &n, self->hInput); - - return n; -} - -LINKSPEC_CPP AAC_DECODER_ERROR aacDecoder_DecodeFrame( - HANDLE_AACDECODER self, - INT_PCM *pTimeData, - const INT timeDataSize, - const UINT flags) -{ - AAC_DECODER_ERROR ErrorStatus; - INT layer; - INT nBits; - INT interleaved = self->outputInterleaved; - HANDLE_FDK_BITSTREAM hBs; - int fTpInterruption = 0; /* Transport originated interruption detection. */ - int fTpConceal = 0; /* Transport originated concealment. */ - - - if (self == NULL) { - return AAC_DEC_INVALID_HANDLE; - } - - if (flags & AACDEC_INTR) { - self->streamInfo.numLostAccessUnits = 0; - } - - hBs = transportDec_GetBitstream(self->hInput, 0); - - /* Get current bits position for bitrate calculation. */ - nBits = FDKgetValidBits(hBs); - if (! (flags & (AACDEC_CONCEAL | AACDEC_FLUSH) ) ) - { - TRANSPORTDEC_ERROR err; - - for(layer = 0; layer < self->nrOfLayers; layer++) - { - err = transportDec_ReadAccessUnit(self->hInput, layer); - if (err != TRANSPORTDEC_OK) { - switch (err) { - case TRANSPORTDEC_NOT_ENOUGH_BITS: - ErrorStatus = AAC_DEC_NOT_ENOUGH_BITS; - goto bail; - case TRANSPORTDEC_SYNC_ERROR: - self->streamInfo.numLostAccessUnits = aacDecoder_EstimateNumberOfLostFrames(self); - fTpInterruption = 1; - break; - case TRANSPORTDEC_NEED_TO_RESTART: - ErrorStatus = AAC_DEC_NEED_TO_RESTART; - goto bail; - case TRANSPORTDEC_CRC_ERROR: - fTpConceal = 1; - break; - default: - ErrorStatus = AAC_DEC_UNKNOWN; - goto bail; - } - } - } - } else { - if (self->streamInfo.numLostAccessUnits > 0) { - self->streamInfo.numLostAccessUnits--; - } - } - - /* Signal bit stream interruption to other modules if required. */ - if ( fTpInterruption || (flags & (AACDEC_INTR|AACDEC_CLRHIST)) ) - { - aacDecoder_SignalInterruption(self); - if ( ! (flags & AACDEC_INTR) ) { - ErrorStatus = AAC_DEC_TRANSPORT_SYNC_ERROR; - goto bail; - } - } - - /* Empty bit buffer in case of flush request. */ - if (flags & AACDEC_FLUSH) - { - transportDec_SetParam(self->hInput, TPDEC_PARAM_RESET, 1); - self->streamInfo.numLostAccessUnits = 0; - self->streamInfo.numBadBytes = 0; - self->streamInfo.numTotalBytes = 0; - } - - - ErrorStatus = CAacDecoder_DecodeFrame(self, - flags | (fTpConceal ? AACDEC_CONCEAL : 0), - pTimeData, - timeDataSize, - interleaved); - - if (!(flags & (AACDEC_CONCEAL|AACDEC_FLUSH))) { - TRANSPORTDEC_ERROR tpErr; - tpErr = transportDec_EndAccessUnit(self->hInput); - if (tpErr != TRANSPORTDEC_OK) { - self->frameOK = 0; - } - } - - /* If the current pTimeData does not contain a valid signal, there nothing else we can do, so bail. */ - if ( ! IS_OUTPUT_VALID(ErrorStatus) ) { - goto bail; - } - - { - /* Export data into streaminfo structure */ - self->streamInfo.sampleRate = self->streamInfo.aacSampleRate; - self->streamInfo.frameSize = self->streamInfo.aacSamplesPerFrame; - } - self->streamInfo.numChannels = self->streamInfo.aacNumChannels; - - - - CAacDecoder_SyncQmfMode(self); - -/* sbr decoder */ - - if (ErrorStatus || (flags & AACDEC_CONCEAL) || self->pAacDecoderStaticChannelInfo[0]->concealmentInfo.concealState > ConcealState_FadeIn) - { - self->frameOK = 0; /* if an error has occured do concealment in the SBR decoder too */ - } - - if (self->sbrEnabled) - { - SBR_ERROR sbrError = SBRDEC_OK; - - /* set params */ - sbrDecoder_SetParam ( self->hSbrDecoder, - SBR_SYSTEM_BITSTREAM_DELAY, - self->sbrParams.bsDelay); - - if ( self->streamInfo.aot == AOT_ER_AAC_ELD ) { - /* Configure QMF */ - sbrDecoder_SetParam ( self->hSbrDecoder, - SBR_LD_QMF_TIME_ALIGN, - (self->flags & AC_LD_MPS) ? 1 : 0 ); - } - - - - - /* apply SBR processing */ - sbrError = sbrDecoder_Apply ( self->hSbrDecoder, - pTimeData, - &self->streamInfo.numChannels, - &self->streamInfo.sampleRate, - self->channelOutputMapping[self->streamInfo.numChannels-1], - interleaved, - self->frameOK, - &self->psPossible); - - - if (sbrError == SBRDEC_OK) { - - /* Update data in streaminfo structure. Assume that the SBR upsampling factor is either 1 or 2 */ - self->flags |= AC_SBR_PRESENT; - if (self->streamInfo.aacSampleRate != self->streamInfo.sampleRate) { - if (self->streamInfo.frameSize == 768) { - self->streamInfo.frameSize = (self->streamInfo.aacSamplesPerFrame * 8) / 3; - } else { - self->streamInfo.frameSize = self->streamInfo.aacSamplesPerFrame << 1; - } - } - - if (self->psPossible) { - self->flags |= AC_PS_PRESENT; - self->channelType[0] = ACT_FRONT; - self->channelType[1] = ACT_FRONT; - self->channelIndices[0] = 0; - self->channelIndices[1] = 1; - } else { - self->flags &= ~AC_PS_PRESENT; - } - } - } - - - if ( flags & (AACDEC_INTR | AACDEC_CLRHIST) ) { - /* delete data from the past (e.g. mixdown coeficients) */ - pcmDmx_Reset( self->hPcmUtils, PCMDMX_RESET_BS_DATA ); - } - /* do PCM post processing */ - pcmDmx_ApplyFrame ( - self->hPcmUtils, - pTimeData, - self->streamInfo.frameSize, - &self->streamInfo.numChannels, - interleaved, - self->channelType, - self->channelIndices, - self->channelOutputMapping - ); - - - - /* Signal interruption to take effect in next frame. */ - if ( flags & AACDEC_FLUSH ) { - aacDecoder_SignalInterruption(self); - } - - /* Update externally visible copy of flags */ - self->streamInfo.flags = self->flags; - -bail: - - /* Update Statistics */ - aacDecoder_UpdateBitStreamCounters(&self->streamInfo, hBs, nBits, ErrorStatus); - - return ErrorStatus; -} - -LINKSPEC_CPP void aacDecoder_Close ( HANDLE_AACDECODER self ) -{ - if (self == NULL) - return; - - - - if (self->hPcmUtils != NULL) { - pcmDmx_Close( &self->hPcmUtils ); - } - - - - if (self->hSbrDecoder != NULL) { - sbrDecoder_Close(&self->hSbrDecoder); - } - - if (self->hInput != NULL) { - transportDec_Close(&self->hInput); - } - - CAacDecoder_Close(self); -} - - -LINKSPEC_CPP CStreamInfo* aacDecoder_GetStreamInfo ( HANDLE_AACDECODER self ) -{ - return CAacDecoder_GetStreamInfo(self); -} - -LINKSPEC_CPP INT aacDecoder_GetLibInfo ( LIB_INFO *info ) -{ - int i; - - if (info == NULL) { - return -1; - } - - sbrDecoder_GetLibInfo( info ); - transportDec_GetLibInfo( info ); - FDK_toolsGetLibInfo( info ); - pcmDmx_GetLibInfo( info ); - - /* search for next free tab */ - for (i = 0; i < FDK_MODULE_LAST; i++) { - if (info[i].module_id == FDK_NONE) break; - } - if (i == FDK_MODULE_LAST) { - return -1; - } - info += i; - - info->module_id = FDK_AACDEC; - /* build own library info */ - info->version = LIB_VERSION(AACDECODER_LIB_VL0, AACDECODER_LIB_VL1, AACDECODER_LIB_VL2); - LIB_VERSION_STRING(info); - info->build_date = AACDECODER_LIB_BUILD_DATE; - info->build_time = AACDECODER_LIB_BUILD_TIME; - info->title = AACDECODER_LIB_TITLE; - - /* Set flags */ - info->flags = 0 - | CAPF_AAC_LC - | CAPF_AAC_VCB11 - | CAPF_AAC_HCR - | CAPF_AAC_RVLC - | CAPF_ER_AAC_LD - | CAPF_ER_AAC_ELD - | CAPF_AAC_CONCEALMENT - | CAPF_AAC_DRC - - | CAPF_AAC_MPEG4 - - - | CAPF_AAC_1024 - | CAPF_AAC_960 - - | CAPF_AAC_512 - - | CAPF_AAC_480 - - ; - /* End of flags */ - - return 0; -} - - - - |