diff options
Diffstat (limited to 'libAACdec/src/aacdec_hcr.cpp')
| -rw-r--r-- | libAACdec/src/aacdec_hcr.cpp | 1783 |
1 files changed, 845 insertions, 938 deletions
diff --git a/libAACdec/src/aacdec_hcr.cpp b/libAACdec/src/aacdec_hcr.cpp index e314e27..84e05b0 100644 --- a/libAACdec/src/aacdec_hcr.cpp +++ b/libAACdec/src/aacdec_hcr.cpp @@ -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 @@ -79,11 +90,12 @@ Am Wolfsmantel 33 www.iis.fraunhofer.de/amm amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ +----------------------------------------------------------------------------- */ -/***************************** MPEG-4 AAC Decoder *************************** +/**************************** AAC decoder library ****************************** Author(s): Robert Weidner (DSP Solutions) + Description: HCR Decoder: HCR initialization, preprocess HCR sideinfo, decode priority codewords (PCWs) @@ -91,8 +103,6 @@ amm-info@iis.fraunhofer.de #include "aacdec_hcr.h" - - #include "aacdec_hcr_types.h" #include "aacdec_hcr_bit.h" #include "aacdec_hcrs.h" @@ -101,263 +111,247 @@ amm-info@iis.fraunhofer.de #include "channel.h" #include "block.h" -#include "aacdecoder.h" /* for ID_CPE, ID_SCE ... */ +#include "aacdecoder.h" /* for ID_CPE, ID_SCE ... */ #include "FDK_bitstream.h" extern int mlFileChCurr; -static void errDetectorInHcrSideinfoShrt(SCHAR cb, - SHORT numLine, +static void errDetectorInHcrSideinfoShrt(SCHAR cb, SHORT numLine, UINT *errorWord); -static void errDetectorInHcrLengths(SCHAR lengthOfLongestCodeword, - SHORT lengthOfReorderedSpectralData, - UINT *errorWord); +static void errDetectorInHcrLengths(SCHAR lengthOfLongestCodeword, + SHORT lengthOfReorderedSpectralData, + UINT *errorWord); -static void HcrCalcNumCodeword (H_HCR_INFO pHcr); +static void HcrCalcNumCodeword(H_HCR_INFO pHcr); static void HcrSortCodebookAndNumCodewordInSection(H_HCR_INFO pHcr); -static void HcrPrepareSegmentationGrid (H_HCR_INFO pHcr); -static void HcrExtendedSectionInfo (H_HCR_INFO pHcr); - -static void DeriveNumberOfExtendedSortedSectionsInSets(UINT numSegment, - USHORT *pNumExtendedSortedCodewordInSection, - int numExtendedSortedCodewordInSectionIdx, - USHORT *pNumExtendedSortedSectionsInSets, - int numExtendedSortedSectionsInSetsIdx); - -static INT DecodeEscapeSequence(HANDLE_FDK_BITSTREAM bs, - INT quantSpecCoef, - USHORT *pLeftStartOfSegment, - SCHAR *pRemainingBitsInSegment, - int *pNumDecodedBits - ); - -static int DecodePCW_Sign(HANDLE_FDK_BITSTREAM bs, - UINT codebookDim, - const SCHAR *pQuantVal, - FIXP_DBL *pQuantSpecCoef, - int *quantSpecCoefIdx, - USHORT *pLeftStartOfSegment, - SCHAR *pRemainingBitsInSegment, - int *pNumDecodedBits - ); - -static const SCHAR *DecodePCW_Body(HANDLE_FDK_BITSTREAM bs, - const UINT *pCurrentTree, - const SCHAR *pQuantValBase, - USHORT *pLeftStartOfSegment, - SCHAR *pRemainingBitsInSegment, - int *pNumDecodedBits - ); +static void HcrPrepareSegmentationGrid(H_HCR_INFO pHcr); +static void HcrExtendedSectionInfo(H_HCR_INFO pHcr); + +static void DeriveNumberOfExtendedSortedSectionsInSets( + UINT numSegment, USHORT *pNumExtendedSortedCodewordInSection, + int numExtendedSortedCodewordInSectionIdx, + USHORT *pNumExtendedSortedSectionsInSets, + int numExtendedSortedSectionsInSetsIdx); + +static INT DecodeEscapeSequence(HANDLE_FDK_BITSTREAM bs, INT quantSpecCoef, + INT *pLeftStartOfSegment, + SCHAR *pRemainingBitsInSegment, + int *pNumDecodedBits); + +static int DecodePCW_Sign(HANDLE_FDK_BITSTREAM bs, UINT codebookDim, + const SCHAR *pQuantVal, FIXP_DBL *pQuantSpecCoef, + int *quantSpecCoefIdx, INT *pLeftStartOfSegment, + SCHAR *pRemainingBitsInSegment, int *pNumDecodedBits); + +static const SCHAR *DecodePCW_Body(HANDLE_FDK_BITSTREAM bs, + const UINT *pCurrentTree, + const SCHAR *pQuantValBase, + INT *pLeftStartOfSegment, + SCHAR *pRemainingBitsInSegment, + int *pNumDecodedBits); static void DecodePCWs(HANDLE_FDK_BITSTREAM bs, H_HCR_INFO pHcr); static void HcrReorderQuantizedSpectralCoefficients( - H_HCR_INFO pHcr, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - const SamplingRateInfo *pSamplingRateInfo - ); + H_HCR_INFO pHcr, CAacDecoderChannelInfo *pAacDecoderChannelInfo, + const SamplingRateInfo *pSamplingRateInfo); +static UCHAR errDetectPcwSegmentation(SCHAR remainingBitsInSegment, + H_HCR_INFO pHcr, PCW_TYPE kind, + FIXP_DBL *qsc_base_of_cw, + UCHAR dimension); -#if CHECK_SEGMENTATION_IMMEDIATELY -static UCHAR errDetectPcwSegmentation(SCHAR remainingBitsInSegment, - H_HCR_INFO pHcr, - PCW_TYPE kind, - FIXP_DBL *qsc_base_of_cw, - UCHAR dimension); -#endif - -#if CHECK_SEGMENTATION_FINAL static void errDetectWithinSegmentationFinal(H_HCR_INFO pHcr); -#endif /*--------------------------------------------------------------------------------------------- - description: Check if codebook and numSect are within allowed range (short only) --------------------------------------------------------------------------------------------- */ -static void errDetectorInHcrSideinfoShrt(SCHAR cb, SHORT numLine,UINT* errorWord) -{ - - - - if ( cb < ZERO_HCB || cb >= MAX_CB_CHECK || cb == BOOKSCL ) { + description: Check if codebook and numSect are within allowed range +(short only) +-------------------------------------------------------------------------------------------- +*/ +static void errDetectorInHcrSideinfoShrt(SCHAR cb, SHORT numLine, + UINT *errorWord) { + if (cb < ZERO_HCB || cb >= MAX_CB_CHECK || cb == BOOKSCL) { *errorWord |= CB_OUT_OF_RANGE_SHORT_BLOCK; } - if ( numLine < 0 || numLine > 1024 ) { + if (numLine < 0 || numLine > 1024) { *errorWord |= LINE_IN_SECT_OUT_OF_RANGE_SHORT_BLOCK; } } /*--------------------------------------------------------------------------------------------- description: Check both HCR lengths --------------------------------------------------------------------------------------------- */ -static void errDetectorInHcrLengths(SCHAR lengthOfLongestCodeword, - SHORT lengthOfReorderedSpectralData, - UINT *errorWord) -{ - if ( lengthOfReorderedSpectralData < lengthOfLongestCodeword ) { +-------------------------------------------------------------------------------------------- +*/ +static void errDetectorInHcrLengths(SCHAR lengthOfLongestCodeword, + SHORT lengthOfReorderedSpectralData, + UINT *errorWord) { + if (lengthOfReorderedSpectralData < lengthOfLongestCodeword) { *errorWord |= HCR_SI_LENGTHS_FAILURE; } } /*--------------------------------------------------------------------------------------------- - description: Decode (and adapt if necessary) the two HCR sideinfo components: - 'reordered_spectral_data_length' and 'longest_codeword_length' --------------------------------------------------------------------------------------------- */ - -void CHcr_Read(HANDLE_FDK_BITSTREAM bs, - CAacDecoderChannelInfo *pAacDecoderChannelInfo) -{ - INT globalHcrType = getHcrType(&pAacDecoderChannelInfo->pComData->overlay.aac.erHcrInfo); - SHORT lengOfReorderedSpectralData; - SCHAR lengOfLongestCodeword; - - pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfReorderedSpectralData = 0; - pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfLongestCodeword = 0; - - - - /* ------- SI-Value No 1 ------- */ - lengOfReorderedSpectralData = FDKreadBits(bs,14) + ERROR_LORSD; - if ( globalHcrType == ID_CPE ) { - if ((lengOfReorderedSpectralData >= 0) && (lengOfReorderedSpectralData <= CPE_TOP_LENGTH)) { - pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfReorderedSpectralData = lengOfReorderedSpectralData; /* the decoded value is within range */ - } - else { - if (lengOfReorderedSpectralData > CPE_TOP_LENGTH) { - pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfReorderedSpectralData = CPE_TOP_LENGTH; /* use valid maximum */ - } + description: Decode (and adapt if necessary) the two HCR sideinfo +components: 'reordered_spectral_data_length' and 'longest_codeword_length' +-------------------------------------------------------------------------------------------- +*/ + +void CHcr_Read(HANDLE_FDK_BITSTREAM bs, + CAacDecoderChannelInfo *pAacDecoderChannelInfo, + const MP4_ELEMENT_ID globalHcrType) { + SHORT lengOfReorderedSpectralData; + SCHAR lengOfLongestCodeword; + + pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfReorderedSpectralData = + 0; + pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfLongestCodeword = 0; + + /* ------- SI-Value No 1 ------- */ + lengOfReorderedSpectralData = FDKreadBits(bs, 14) + ERROR_LORSD; + if (globalHcrType == ID_CPE) { + if ((lengOfReorderedSpectralData >= 0) && + (lengOfReorderedSpectralData <= CPE_TOP_LENGTH)) { + pAacDecoderChannelInfo->pDynData->specificTo.aac + .lenOfReorderedSpectralData = + lengOfReorderedSpectralData; /* the decoded value is within range */ + } else { + if (lengOfReorderedSpectralData > CPE_TOP_LENGTH) { + pAacDecoderChannelInfo->pDynData->specificTo.aac + .lenOfReorderedSpectralData = + CPE_TOP_LENGTH; /* use valid maximum */ } } - else if (globalHcrType == ID_SCE || globalHcrType == ID_LFE || globalHcrType == ID_CCE ) { - if ((lengOfReorderedSpectralData >= 0) && (lengOfReorderedSpectralData <= SCE_TOP_LENGTH)) { - pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfReorderedSpectralData = lengOfReorderedSpectralData; /* the decoded value is within range */ - } - else { - if (lengOfReorderedSpectralData > SCE_TOP_LENGTH) { - pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfReorderedSpectralData = SCE_TOP_LENGTH; /* use valid maximum */ - } + } else if (globalHcrType == ID_SCE || globalHcrType == ID_LFE || + globalHcrType == ID_CCE) { + if ((lengOfReorderedSpectralData >= 0) && + (lengOfReorderedSpectralData <= SCE_TOP_LENGTH)) { + pAacDecoderChannelInfo->pDynData->specificTo.aac + .lenOfReorderedSpectralData = + lengOfReorderedSpectralData; /* the decoded value is within range */ + } else { + if (lengOfReorderedSpectralData > SCE_TOP_LENGTH) { + pAacDecoderChannelInfo->pDynData->specificTo.aac + .lenOfReorderedSpectralData = + SCE_TOP_LENGTH; /* use valid maximum */ } } + } - /* ------- SI-Value No 2 ------- */ - lengOfLongestCodeword = FDKreadBits(bs,6) + ERROR_LOLC; - if ((lengOfLongestCodeword >= 0) && (lengOfLongestCodeword <= LEN_OF_LONGEST_CW_TOP_LENGTH)) { - pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfLongestCodeword = lengOfLongestCodeword; /* the decoded value is within range */ - } - else { - if (lengOfLongestCodeword > LEN_OF_LONGEST_CW_TOP_LENGTH) { - pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfLongestCodeword = LEN_OF_LONGEST_CW_TOP_LENGTH; /* use valid maximum */ - } + /* ------- SI-Value No 2 ------- */ + lengOfLongestCodeword = FDKreadBits(bs, 6) + ERROR_LOLC; + if ((lengOfLongestCodeword >= 0) && + (lengOfLongestCodeword <= LEN_OF_LONGEST_CW_TOP_LENGTH)) { + pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfLongestCodeword = + lengOfLongestCodeword; /* the decoded value is within range */ + } else { + if (lengOfLongestCodeword > LEN_OF_LONGEST_CW_TOP_LENGTH) { + pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfLongestCodeword = + LEN_OF_LONGEST_CW_TOP_LENGTH; /* use valid maximum */ } -} - - -/*--------------------------------------------------------------------------------------------- - description: Sets up HCR ROM-Tables --------------------------------------------------------------------------------------------- */ - -void HcrInitRom(H_HCR_INFO pHcr) -{ - pHcr->cbPairs.pMinOfCbPair = aMinOfCbPair; - pHcr->cbPairs.pMaxOfCbPair = aMaxOfCbPair; - - pHcr->tableInfo.pMaxCwLength = aMaxCwLen; - pHcr->tableInfo.pCbDimension = aDimCb; - pHcr->tableInfo.pCbDimShift = aDimCbShift; - pHcr->tableInfo.pCbSign = aSignCb; - pHcr->tableInfo.pCbPriority = aCbPriority; - pHcr->tableInfo.pLargestAbsVal = aLargestAbsoluteValue; + } } /*--------------------------------------------------------------------------------------------- - description: Set up HCR - must be called before every call to HcrDecoder(). - For short block a sorting algorithm is applied to get the SI in the order - that HCR could assemble the qsc's as if it is a long block. + description: Set up HCR - must be called before every call to +HcrDecoder(). For short block a sorting algorithm is applied to get the SI in +the order that HCR could assemble the qsc's as if it is a long block. ----------------------------------------------------------------------------------------------- return: error log --------------------------------------------------------------------------------------------- */ +-------------------------------------------------------------------------------------------- +*/ -UINT HcrInit(H_HCR_INFO pHcr, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, +UINT HcrInit(H_HCR_INFO pHcr, CAacDecoderChannelInfo *pAacDecoderChannelInfo, const SamplingRateInfo *pSamplingRateInfo, - HANDLE_FDK_BITSTREAM bs) -{ + HANDLE_FDK_BITSTREAM bs) { CIcsInfo *pIcsInfo = &pAacDecoderChannelInfo->icsInfo; SHORT *pNumLinesInSec; UCHAR *pCodeBk; - SHORT numSection; - SCHAR cb; - int numLine; - int i; - - pHcr->decInOut.lengthOfReorderedSpectralData = pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfReorderedSpectralData; - pHcr->decInOut.lengthOfLongestCodeword = pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfLongestCodeword; - pHcr->decInOut.pQuantizedSpectralCoefficientsBase = pAacDecoderChannelInfo->pSpectralCoefficient; - pHcr->decInOut.quantizedSpectralCoefficientsIdx = 0; - pHcr->decInOut.pCodebook = pAacDecoderChannelInfo->pDynData->specificTo.aac.aCodeBooks4Hcr; - pHcr->decInOut.pNumLineInSect = pAacDecoderChannelInfo->pDynData->specificTo.aac.aNumLineInSec4Hcr; - pHcr->decInOut.numSection = pAacDecoderChannelInfo->pDynData->specificTo.aac.numberSection; + SHORT numSection; + SCHAR cb; + int numLine; + int i; + + pHcr->decInOut.lengthOfReorderedSpectralData = + pAacDecoderChannelInfo->pDynData->specificTo.aac + .lenOfReorderedSpectralData; + pHcr->decInOut.lengthOfLongestCodeword = + pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfLongestCodeword; + pHcr->decInOut.pQuantizedSpectralCoefficientsBase = + pAacDecoderChannelInfo->pSpectralCoefficient; + pHcr->decInOut.quantizedSpectralCoefficientsIdx = 0; + pHcr->decInOut.pCodebook = + pAacDecoderChannelInfo->pDynData->specificTo.aac.aCodeBooks4Hcr; + pHcr->decInOut.pNumLineInSect = + pAacDecoderChannelInfo->pDynData->specificTo.aac.aNumLineInSec4Hcr; + pHcr->decInOut.numSection = + pAacDecoderChannelInfo->pDynData->specificTo.aac.numberSection; pHcr->decInOut.errorLog = 0; - pHcr->nonPcwSideinfo.pResultBase = SPEC_LONG(pAacDecoderChannelInfo->pSpectralCoefficient); + pHcr->nonPcwSideinfo.pResultBase = + SPEC_LONG(pAacDecoderChannelInfo->pSpectralCoefficient); FDKsyncCache(bs); - pHcr->decInOut.bitstreamIndex = FDKgetBitCnt(bs); + pHcr->decInOut.bitstreamIndex = FDKgetBitCnt(bs); - if (!IsLongBlock(&pAacDecoderChannelInfo->icsInfo)) /* short block */ + if (!IsLongBlock(&pAacDecoderChannelInfo->icsInfo)) /* short block */ { - SHORT band; - SHORT maxBand; - SCHAR group; - SCHAR winGroupLen; - SCHAR window; - SCHAR numUnitInBand; - SCHAR cntUnitInBand; - SCHAR groupWin; - SCHAR cb_prev; + SHORT band; + SHORT maxBand; + SCHAR group; + SCHAR winGroupLen; + SCHAR window; + SCHAR numUnitInBand; + SCHAR cntUnitInBand; + SCHAR groupWin; + SCHAR cb_prev; UCHAR *pCodeBook; const SHORT *BandOffsets; - SCHAR numOfGroups; - + SCHAR numOfGroups; - pCodeBook = pAacDecoderChannelInfo->pDynData->aCodeBook; /* in */ - pNumLinesInSec = pHcr->decInOut.pNumLineInSect; /* out */ - pCodeBk = pHcr->decInOut.pCodebook; /* out */ - BandOffsets = GetScaleFactorBandOffsets(pIcsInfo, pSamplingRateInfo); /* aux */ - numOfGroups = GetWindowGroups(pIcsInfo); + pCodeBook = pAacDecoderChannelInfo->pDynData->aCodeBook; /* in */ + pNumLinesInSec = pHcr->decInOut.pNumLineInSect; /* out */ + pCodeBk = pHcr->decInOut.pCodebook; /* out */ + BandOffsets = + GetScaleFactorBandOffsets(pIcsInfo, pSamplingRateInfo); /* aux */ + numOfGroups = GetWindowGroups(pIcsInfo); numLine = 0; numSection = 0; - cb = pCodeBook[0]; + cb = pCodeBook[0]; cb_prev = pCodeBook[0]; - /* convert HCR-sideinfo into a unitwise manner: When the cb changes, a new section starts */ + /* convert HCR-sideinfo into a unitwise manner: When the cb changes, a new + * section starts */ *pCodeBk++ = cb_prev; maxBand = GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo->icsInfo); - for (band = 0; band < maxBand; band++) { /* from low to high sfbs i.e. from low to high frequencies */ - numUnitInBand = ((BandOffsets[band+1] - BandOffsets[band]) >> FOUR_LOG_DIV_TWO_LOG); /* get the number of units in current sfb */ - for (cntUnitInBand = numUnitInBand; cntUnitInBand != 0; cntUnitInBand-- ) { /* for every unit in the band */ + for (band = 0; band < maxBand; + band++) { /* from low to high sfbs i.e. from low to high frequencies */ + numUnitInBand = + ((BandOffsets[band + 1] - BandOffsets[band]) >> + FOUR_LOG_DIV_TWO_LOG); /* get the number of units in current sfb */ + for (cntUnitInBand = numUnitInBand; cntUnitInBand != 0; + cntUnitInBand--) { /* for every unit in the band */ for (window = 0, group = 0; group < numOfGroups; group++) { - winGroupLen = GetWindowGroupLength(&pAacDecoderChannelInfo->icsInfo,group); + winGroupLen = (SCHAR)GetWindowGroupLength( + &pAacDecoderChannelInfo->icsInfo, group); for (groupWin = winGroupLen; groupWin != 0; groupWin--, window++) { cb = pCodeBook[group * 16 + band]; if (cb != cb_prev) { -#if CHECK_VALID_HCR_INPUT /* short-block 1 of 2 */ - errDetectorInHcrSideinfoShrt(cb,numLine,&pHcr->decInOut.errorLog ); - if (pHcr->decInOut.errorLog != 0 ) { - return ( pHcr->decInOut.errorLog ); + errDetectorInHcrSideinfoShrt(cb, numLine, + &pHcr->decInOut.errorLog); + if (pHcr->decInOut.errorLog != 0) { + return (pHcr->decInOut.errorLog); } -#endif *pCodeBk++ = cb; *pNumLinesInSec++ = numLine; numSection++; cb_prev = cb; numLine = LINES_PER_UNIT; - } - else { + } else { numLine += LINES_PER_UNIT; } } @@ -367,18 +361,16 @@ UINT HcrInit(H_HCR_INFO pHcr, numSection++; -#if CHECK_VALID_HCR_INPUT /* short-block 2 of 2 */ - errDetectorInHcrSideinfoShrt(cb,numLine,&pHcr->decInOut.errorLog ); - if ( numSection <= 0 || numSection > 1024/2 ) { + errDetectorInHcrSideinfoShrt(cb, numLine, &pHcr->decInOut.errorLog); + if (numSection <= 0 || numSection > 1024 / 2) { pHcr->decInOut.errorLog |= NUM_SECT_OUT_OF_RANGE_SHORT_BLOCK; } errDetectorInHcrLengths(pHcr->decInOut.lengthOfLongestCodeword, pHcr->decInOut.lengthOfReorderedSpectralData, - &pHcr->decInOut.errorLog); - if (pHcr->decInOut.errorLog != 0 ) { - return ( pHcr->decInOut.errorLog ); + &pHcr->decInOut.errorLog); + if (pHcr->decInOut.errorLog != 0) { + return (pHcr->decInOut.errorLog); } -#endif *pCodeBk = cb; *pNumLinesInSec = numLine; @@ -386,46 +378,40 @@ UINT HcrInit(H_HCR_INFO pHcr, } else /* end short block prepare SI */ { /* long block */ -#if CHECK_VALID_HCR_INPUT /* long-block 1 of 1 */ errDetectorInHcrLengths(pHcr->decInOut.lengthOfLongestCodeword, pHcr->decInOut.lengthOfReorderedSpectralData, - &pHcr->decInOut.errorLog); - numSection = pHcr->decInOut.numSection; + &pHcr->decInOut.errorLog); + numSection = pHcr->decInOut.numSection; pNumLinesInSec = pHcr->decInOut.pNumLineInSect; - pCodeBk = pHcr->decInOut.pCodebook; - if ( numSection <= 0 || numSection > 64 ) { + pCodeBk = pHcr->decInOut.pCodebook; + if (numSection <= 0 || numSection > 64) { pHcr->decInOut.errorLog |= NUM_SECT_OUT_OF_RANGE_LONG_BLOCK; numSection = 0; } - for ( i = numSection; i != 0; i-- ) - { + for (i = numSection; i != 0; i--) { cb = *pCodeBk++; - if ( cb < ZERO_HCB || cb >= MAX_CB_CHECK || cb == BOOKSCL ) { + if (cb < ZERO_HCB || cb >= MAX_CB_CHECK || cb == BOOKSCL) { pHcr->decInOut.errorLog |= CB_OUT_OF_RANGE_LONG_BLOCK; } numLine = *pNumLinesInSec++; /* FDK_ASSERT(numLine > 0); */ - if ( (numLine <= 0) || (numLine > 1024) ) { + if ((numLine <= 0) || (numLine > 1024)) { pHcr->decInOut.errorLog |= LINE_IN_SECT_OUT_OF_RANGE_LONG_BLOCK; } } - if (pHcr->decInOut.errorLog != 0 ) { - return ( pHcr->decInOut.errorLog ); + if (pHcr->decInOut.errorLog != 0) { + return (pHcr->decInOut.errorLog); } -#endif /* CHECK_VALID_HCR_INPUT */ } pCodeBk = pHcr->decInOut.pCodebook; - for ( i = 0; i < numSection; i++ ) { - if ( - (*pCodeBk == NOISE_HCB) || - (*pCodeBk == INTENSITY_HCB2) || - (*pCodeBk == INTENSITY_HCB)) - { + for (i = 0; i < numSection; i++) { + if ((*pCodeBk == NOISE_HCB) || (*pCodeBk == INTENSITY_HCB2) || + (*pCodeBk == INTENSITY_HCB)) { *pCodeBk = 0; } pCodeBk++; @@ -433,54 +419,24 @@ UINT HcrInit(H_HCR_INFO pHcr, /* HCR-sideinfo-input is complete and seems to be valid */ - - - return ( pHcr->decInOut.errorLog ); -} - - - - -#if USE_HCR_DUMMY - -/*--------------------------------------------------------------------------------------------- - - description: This HCR - dummy - function writes only a dirac-sequence in output buffer - --------------------------------------------------------------------------------------------- */ -UINT HcrDecoder(H_HCR_INFO pHcr, - const CAacDecoderChannelInfo *pAacDecoderChannelInfo, - HANDLE_FDK_BITSTREAM bs) -{ - for (SHORT i=0; i < 1024; i++ ) { - pHcr->decInOut.pQuantizedSpectralCoefficients->Long[i] = FL2FXCONST_DBL(0.0f); - if ( i % 30 == 0) { - pHcr->decInOut.pQuantizedSpectralCoefficients->Long[i] = (FIXP_DBL)HCR_DIRAC; - } - } - return 0; + return (pHcr->decInOut.errorLog); } -#else /* USE_HCR_DUMMY */ - /*--------------------------------------------------------------------------------------------- - description: This function decodes the codewords of the spectral coefficients from the - bitstream according to the HCR algorithm and stores the quantized spectral - coefficients in correct order in the output buffer. --------------------------------------------------------------------------------------------- */ - -UINT HcrDecoder(H_HCR_INFO pHcr, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - const SamplingRateInfo *pSamplingRateInfo, - HANDLE_FDK_BITSTREAM bs) -{ + description: This function decodes the codewords of the spectral +coefficients from the bitstream according to the HCR algorithm and stores the +quantized spectral coefficients in correct order in the output buffer. +-------------------------------------------------------------------------------------------- +*/ + +UINT HcrDecoder(H_HCR_INFO pHcr, CAacDecoderChannelInfo *pAacDecoderChannelInfo, + const SamplingRateInfo *pSamplingRateInfo, + HANDLE_FDK_BITSTREAM bs) { int pTmp1, pTmp2, pTmp3, pTmp4; -#if DETECT_TOO_LONG_CW_READS - int pTmp5; -#endif + int pTmp5; - INT bitCntOffst; - UINT saveBitCnt = FDKgetBitCnt(bs); /* save bitstream position */ + INT bitCntOffst; + INT saveBitCnt = FDKgetBitCnt(bs); /* save bitstream position */ HcrCalcNumCodeword(pHcr); @@ -490,244 +446,240 @@ UINT HcrDecoder(H_HCR_INFO pHcr, HcrExtendedSectionInfo(pHcr); - if (( pHcr->decInOut.errorLog & HCR_FATAL_PCW_ERROR_MASK ) != 0 ) { - return ( pHcr->decInOut.errorLog ); /* sideinfo is massively corrupt, return from HCR without having decoded anything */ + if ((pHcr->decInOut.errorLog & HCR_FATAL_PCW_ERROR_MASK) != 0) { + return (pHcr->decInOut.errorLog); /* sideinfo is massively corrupt, return + from HCR without having decoded + anything */ } - DeriveNumberOfExtendedSortedSectionsInSets(pHcr->segmentInfo.numSegment, - pHcr->sectionInfo.pNumExtendedSortedCodewordInSection, - pHcr->sectionInfo.numExtendedSortedCodewordInSectionIdx, - pHcr->sectionInfo.pNumExtendedSortedSectionsInSets, - pHcr->sectionInfo.numExtendedSortedSectionsInSetsIdx); + DeriveNumberOfExtendedSortedSectionsInSets( + pHcr->segmentInfo.numSegment, + pHcr->sectionInfo.pNumExtendedSortedCodewordInSection, + pHcr->sectionInfo.numExtendedSortedCodewordInSectionIdx, + pHcr->sectionInfo.pNumExtendedSortedSectionsInSets, + pHcr->sectionInfo.numExtendedSortedSectionsInSetsIdx); /* store */ pTmp1 = pHcr->sectionInfo.numExtendedSortedCodewordInSectionIdx; pTmp2 = pHcr->sectionInfo.extendedSortedCodebookIdx; pTmp3 = pHcr->sectionInfo.numExtendedSortedSectionsInSetsIdx; pTmp4 = pHcr->decInOut.quantizedSpectralCoefficientsIdx; -#if DETECT_TOO_LONG_CW_READS pTmp5 = pHcr->sectionInfo.maxLenOfCbInExtSrtSecIdx; -#endif /* ------- decode meaningful PCWs ------ */ DecodePCWs(bs, pHcr); - if (( pHcr->decInOut.errorLog & HCR_FATAL_PCW_ERROR_MASK ) == 0 ) { + if ((pHcr->decInOut.errorLog & HCR_FATAL_PCW_ERROR_MASK) == 0) { /* ------ decode the non-PCWs -------- */ DecodeNonPCWs(bs, pHcr); } - -#if CHECK_SEGMENTATION_FINAL errDetectWithinSegmentationFinal(pHcr); -#endif /* restore */ pHcr->sectionInfo.numExtendedSortedCodewordInSectionIdx = pTmp1; - pHcr->sectionInfo.extendedSortedCodebookIdx = pTmp2; - pHcr->sectionInfo.numExtendedSortedSectionsInSetsIdx = pTmp3; - pHcr->decInOut.quantizedSpectralCoefficientsIdx = pTmp4; -#if DETECT_TOO_LONG_CW_READS - pHcr->sectionInfo.maxLenOfCbInExtSrtSecIdx = pTmp5; -#endif + pHcr->sectionInfo.extendedSortedCodebookIdx = pTmp2; + pHcr->sectionInfo.numExtendedSortedSectionsInSetsIdx = pTmp3; + pHcr->decInOut.quantizedSpectralCoefficientsIdx = pTmp4; + pHcr->sectionInfo.maxLenOfCbInExtSrtSecIdx = pTmp5; - HcrReorderQuantizedSpectralCoefficients(pHcr, pAacDecoderChannelInfo, pSamplingRateInfo); + HcrReorderQuantizedSpectralCoefficients(pHcr, pAacDecoderChannelInfo, + pSamplingRateInfo); /* restore bitstream position */ bitCntOffst = saveBitCnt - FDKgetBitCnt(bs); - if( bitCntOffst ) { + if (bitCntOffst) { FDKpushBiDirectional(bs, bitCntOffst); } - return ( pHcr->decInOut.errorLog ); + return (pHcr->decInOut.errorLog); } - -#endif /* USE_HCR_DUMMY */ - - - - /*--------------------------------------------------------------------------------------------- - description: This function reorders the quantized spectral coefficients sectionwise for - long- and short-blocks and compares to the LAV (Largest Absolute Value of - the current codebook) -- a counter is incremented if there is an error + description: This function reorders the quantized spectral coefficients +sectionwise for long- and short-blocks and compares to the LAV (Largest Absolute +Value of the current codebook) -- a counter is incremented if there is an error detected. - Additional for short-blocks a unit-based-deinterleaving is applied. - Moreover (for short blocks) the scaling is derived (compare plain huffman - decoder). --------------------------------------------------------------------------------------------- */ + Additional for short-blocks a unit-based-deinterleaving is +applied. Moreover (for short blocks) the scaling is derived (compare plain +huffman decoder). +-------------------------------------------------------------------------------------------- +*/ static void HcrReorderQuantizedSpectralCoefficients( - H_HCR_INFO pHcr, CAacDecoderChannelInfo *pAacDecoderChannelInfo, - const SamplingRateInfo *pSamplingRateInfo - ) -{ - INT qsc; - UINT abs_qsc; - UINT i,j; - USHORT numSpectralValuesInSection; + H_HCR_INFO pHcr, CAacDecoderChannelInfo *pAacDecoderChannelInfo, + const SamplingRateInfo *pSamplingRateInfo) { + INT qsc; + UINT abs_qsc; + UINT i, j; + USHORT numSpectralValuesInSection; FIXP_DBL *pTeVa; - USHORT lavErrorCnt = 0; - - UINT numSection = pHcr->decInOut.numSection; - SPECTRAL_PTR pQuantizedSpectralCoefficientsBase = pHcr->decInOut.pQuantizedSpectralCoefficientsBase; - FIXP_DBL *pQuantizedSpectralCoefficients = SPEC_LONG(pHcr->decInOut.pQuantizedSpectralCoefficientsBase); - const UCHAR *pCbDimShift = pHcr->tableInfo.pCbDimShift; - const USHORT *pLargestAbsVal = pHcr->tableInfo.pLargestAbsVal; - UCHAR *pSortedCodebook = pHcr->sectionInfo.pSortedCodebook; - USHORT *pNumSortedCodewordInSection = pHcr->sectionInfo.pNumSortedCodewordInSection; - USHORT *pReorderOffset = pHcr->sectionInfo.pReorderOffset; - FIXP_DBL *pTempValues = pHcr->segmentInfo.pTempValues; - FIXP_DBL *pBak = pHcr->segmentInfo.pTempValues; - - FDKmemclear(pTempValues,1024*sizeof(FIXP_DBL)); - - /* long and short: check if decoded huffman-values (quantized spectral coefficients) are within range */ - for ( i=numSection; i != 0; i-- ) { - numSpectralValuesInSection = *pNumSortedCodewordInSection++ << pCbDimShift[*pSortedCodebook]; + USHORT lavErrorCnt = 0; + + UINT numSection = pHcr->decInOut.numSection; + SPECTRAL_PTR pQuantizedSpectralCoefficientsBase = + pHcr->decInOut.pQuantizedSpectralCoefficientsBase; + FIXP_DBL *pQuantizedSpectralCoefficients = + SPEC_LONG(pHcr->decInOut.pQuantizedSpectralCoefficientsBase); + const UCHAR *pCbDimShift = aDimCbShift; + const USHORT *pLargestAbsVal = aLargestAbsoluteValue; + UCHAR *pSortedCodebook = pHcr->sectionInfo.pSortedCodebook; + USHORT *pNumSortedCodewordInSection = + pHcr->sectionInfo.pNumSortedCodewordInSection; + USHORT *pReorderOffset = pHcr->sectionInfo.pReorderOffset; + FIXP_DBL pTempValues[1024]; + FIXP_DBL *pBak = pTempValues; + + FDKmemclear(pTempValues, 1024 * sizeof(FIXP_DBL)); + + /* long and short: check if decoded huffman-values (quantized spectral + * coefficients) are within range */ + for (i = numSection; i != 0; i--) { + numSpectralValuesInSection = *pNumSortedCodewordInSection++ + << pCbDimShift[*pSortedCodebook]; pTeVa = &pTempValues[*pReorderOffset++]; - for( j = numSpectralValuesInSection; j != 0; j-- ) { + for (j = numSpectralValuesInSection; j != 0; j--) { qsc = *pQuantizedSpectralCoefficients++; - abs_qsc = FDKabs(qsc); -#if VALID_LAV_ERROR_TRIGGER - if ( abs_qsc <= pLargestAbsVal[*pSortedCodebook] ) { - *pTeVa++ = (FIXP_DBL)qsc; /* the qsc value is within range */ - } - else { /* line is too high .. */ - if ( abs_qsc == Q_VALUE_INVALID ) { /* .. because of previous marking --> dont set LAV flag (would be confusing), just copy out the already marked value */ - *pTeVa++ = (FIXP_DBL) qsc; - } - else { /* .. because a too high value was decoded for this cb --> set LAV flag */ - *pTeVa++ = (FIXP_DBL) Q_VALUE_INVALID; + abs_qsc = fAbs(qsc); + if (abs_qsc <= pLargestAbsVal[*pSortedCodebook]) { + *pTeVa++ = (FIXP_DBL)qsc; /* the qsc value is within range */ + } else { /* line is too high .. */ + if (abs_qsc == + Q_VALUE_INVALID) { /* .. because of previous marking --> dont set + LAV flag (would be confusing), just copy out + the already marked value */ + *pTeVa++ = (FIXP_DBL)qsc; + } else { /* .. because a too high value was decoded for this cb --> set + LAV flag */ + *pTeVa++ = (FIXP_DBL)Q_VALUE_INVALID; lavErrorCnt += 1; } } -#else - if ( abs_qsc <= pLargestAbsVal[*pSortedCodebook] ) { - *pTeVa++ = qsc; - } - else { - *pTeVa++ = Q_VALUE_INVALID; - lavErrorCnt += 1; - } -#endif } pSortedCodebook++; } - if (!IsLongBlock(&pAacDecoderChannelInfo->icsInfo)) - { + if (!IsLongBlock(&pAacDecoderChannelInfo->icsInfo)) { FIXP_DBL *pOut; - FIXP_DBL locMax; - FIXP_DBL tmp; - SCHAR groupoffset; - SCHAR group; - SCHAR band; - SCHAR groupwin; - SCHAR window; - SCHAR numWinGroup; - SHORT interm; - SCHAR numSfbTransm; - SCHAR winGroupLen; - SHORT index; - INT msb; - INT lsb; - - SHORT *pScaleFacHcr = pAacDecoderChannelInfo->pDynData->aScaleFactor; - SHORT *pSfbSclHcr = pAacDecoderChannelInfo->pDynData->aSfbScale; - const SHORT *BandOffsets = GetScaleFactorBandOffsets(&pAacDecoderChannelInfo->icsInfo, pSamplingRateInfo); - - pBak = pHcr->segmentInfo.pTempValues; + FIXP_DBL locMax; + FIXP_DBL tmp; + SCHAR groupoffset; + SCHAR group; + SCHAR band; + SCHAR groupwin; + SCHAR window; + SCHAR numWinGroup; + SHORT interm; + SCHAR numSfbTransm; + SCHAR winGroupLen; + SHORT index; + INT msb; + INT lsb; + + SHORT *pScaleFacHcr = pAacDecoderChannelInfo->pDynData->aScaleFactor; + SHORT *pSfbSclHcr = pAacDecoderChannelInfo->pDynData->aSfbScale; + const SHORT *BandOffsets = GetScaleFactorBandOffsets( + &pAacDecoderChannelInfo->icsInfo, pSamplingRateInfo); + + pBak = pTempValues; /* deinterleave unitwise for short blocks */ - for ( window = 0; window < (8); window++ ) { - pOut = SPEC(pQuantizedSpectralCoefficientsBase, window, pAacDecoderChannelInfo->granuleLength); - for ( i=0; i < (LINES_PER_UNIT_GROUP); i++ ) { - pTeVa = pBak + (window << FOUR_LOG_DIV_TWO_LOG) + i * 32; /* distance of lines between unit groups has to be constant for every framelength (32)! */ - for ( j=(LINES_PER_UNIT); j != 0; j-- ) { + for (window = 0; window < (8); window++) { + pOut = SPEC(pQuantizedSpectralCoefficientsBase, window, + pAacDecoderChannelInfo->granuleLength); + for (i = 0; i < (LINES_PER_UNIT_GROUP); i++) { + pTeVa = pBak + (window << FOUR_LOG_DIV_TWO_LOG) + + i * 32; /* distance of lines between unit groups has to be + constant for every framelength (32)! */ + for (j = (LINES_PER_UNIT); j != 0; j--) { *pOut++ = *pTeVa++; } } } /* short blocks only */ - /* derive global scaling-value for every sfb and every window (as it is done in plain-huffman-decoder at short blocks) */ + /* derive global scaling-value for every sfb and every window (as it is done + * in plain-huffman-decoder at short blocks) */ groupoffset = 0; numWinGroup = GetWindowGroups(&pAacDecoderChannelInfo->icsInfo); - numSfbTransm = GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo->icsInfo); + numSfbTransm = + GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo->icsInfo); for (group = 0; group < numWinGroup; group++) { - winGroupLen = GetWindowGroupLength(&pAacDecoderChannelInfo->icsInfo,group); + winGroupLen = + GetWindowGroupLength(&pAacDecoderChannelInfo->icsInfo, group); for (band = 0; band < numSfbTransm; band++) { interm = group * 16 + band; msb = pScaleFacHcr[interm] >> 2; lsb = pScaleFacHcr[interm] & 3; for (groupwin = 0; groupwin < winGroupLen; groupwin++) { window = groupoffset + groupwin; - pBak = SPEC(pQuantizedSpectralCoefficientsBase, window, pAacDecoderChannelInfo->granuleLength); + pBak = SPEC(pQuantizedSpectralCoefficientsBase, window, + pAacDecoderChannelInfo->granuleLength); locMax = FL2FXCONST_DBL(0.0f); - for (index = BandOffsets[band]; index < BandOffsets[band+1]; index += LINES_PER_UNIT) { + for (index = BandOffsets[band]; index < BandOffsets[band + 1]; + index += LINES_PER_UNIT) { pTeVa = &pBak[index]; - for ( i = LINES_PER_UNIT; i != 0; i --) { - tmp = (*pTeVa < FL2FXCONST_DBL(0.0f))? -*pTeVa++ : *pTeVa++; - locMax = fixMax(tmp,locMax); + for (i = LINES_PER_UNIT; i != 0; i--) { + tmp = (*pTeVa < FL2FXCONST_DBL(0.0f)) ? -*pTeVa++ : *pTeVa++; + locMax = fixMax(tmp, locMax); } } - if ( fixp_abs(locMax) > (FIXP_DBL)MAX_QUANTIZED_VALUE ) { + if (fixp_abs(locMax) > (FIXP_DBL)MAX_QUANTIZED_VALUE) { locMax = (FIXP_DBL)MAX_QUANTIZED_VALUE; } - pSfbSclHcr[window*16+band] = msb - GetScaleFromValue(locMax, lsb); /* save global scale maxima in this sfb */ + pSfbSclHcr[window * 16 + band] = + msb - GetScaleFromValue( + locMax, lsb); /* save global scale maxima in this sfb */ } } - groupoffset += GetWindowGroupLength(&pAacDecoderChannelInfo->icsInfo,group); + groupoffset += + GetWindowGroupLength(&pAacDecoderChannelInfo->icsInfo, group); } - } else - { + } else { /* copy straight for long-blocks */ - pQuantizedSpectralCoefficients = SPEC_LONG(pQuantizedSpectralCoefficientsBase); - for ( i = 1024; i != 0; i-- ) { + pQuantizedSpectralCoefficients = + SPEC_LONG(pQuantizedSpectralCoefficientsBase); + for (i = 1024; i != 0; i--) { *pQuantizedSpectralCoefficients++ = *pBak++; } } - if ( lavErrorCnt != 0 ) { + if (lavErrorCnt != 0) { pHcr->decInOut.errorLog |= LAV_VIOLATION; } } - /*--------------------------------------------------------------------------------------------- description: This function calculates the number of codewords - for each section (numCodewordInSection) and the number of codewords - for all sections (numCodeword). - For zero and intensity codebooks a entry is also done in the variable - numCodewordInSection. It is assumed that the codebook is a two tuples - codebook. This is needed later for the calculation of the base addresses - for the reordering of the quantize spectral coefficients at the end of the - hcr tool. - The variable numCodeword contain the number of codewords which are really - in the bitstream. Zero or intensity codebooks does not increase the - variable numCodewords. + for each section (numCodewordInSection) and the number of +codewords for all sections (numCodeword). For zero and intensity codebooks a +entry is also done in the variable numCodewordInSection. It is assumed that the +codebook is a two tuples codebook. This is needed later for the calculation of +the base addresses for the reordering of the quantize spectral coefficients at +the end of the hcr tool. The variable numCodeword contain the number of +codewords which are really in the bitstream. Zero or intensity codebooks does +not increase the variable numCodewords. ----------------------------------------------------------------------------------------------- return: - --------------------------------------------------------------------------------------------- */ +-------------------------------------------------------------------------------------------- +*/ + +static void HcrCalcNumCodeword(H_HCR_INFO pHcr) { + int hcrSection; + UINT numCodeword; -static void HcrCalcNumCodeword(H_HCR_INFO pHcr) -{ - int hcrSection; - UINT numCodeword; + UINT numSection = pHcr->decInOut.numSection; + UCHAR *pCodebook = pHcr->decInOut.pCodebook; + SHORT *pNumLineInSection = pHcr->decInOut.pNumLineInSect; + const UCHAR *pCbDimShift = aDimCbShift; - UINT numSection = pHcr->decInOut.numSection; - UCHAR *pCodebook = pHcr->decInOut.pCodebook; - SHORT *pNumLineInSection = pHcr->decInOut.pNumLineInSect; - const UCHAR *pCbDimShift = pHcr->tableInfo.pCbDimShift; - USHORT *pNumCodewordInSection = pHcr->sectionInfo.pNumCodewordInSection; + USHORT *pNumCodewordInSection = pHcr->sectionInfo.pNumCodewordInSection; numCodeword = 0; - for ( hcrSection = numSection; hcrSection != 0; hcrSection-- ) { + for (hcrSection = numSection; hcrSection != 0; hcrSection--) { *pNumCodewordInSection = *pNumLineInSection++ >> pCbDimShift[*pCodebook]; - if ( *pCodebook != 0 ) { + if (*pCodebook != 0) { numCodeword += *pNumCodewordInSection; } pNumCodewordInSection++; @@ -736,61 +688,63 @@ static void HcrCalcNumCodeword(H_HCR_INFO pHcr) pHcr->sectionInfo.numCodeword = numCodeword; } - /*--------------------------------------------------------------------------------------------- description: This function calculates the number - of sorted codebooks and sorts the codebooks and the numCodewordInSection - according to the priority. --------------------------------------------------------------------------------------------- */ - -static void HcrSortCodebookAndNumCodewordInSection(H_HCR_INFO pHcr) -{ - - UINT i,j,k; - UCHAR temp; - UINT counter; - UINT startOffset; - UINT numZeroSection; - UCHAR *pDest; - UINT numSectionDec; - - UINT numSection = pHcr->decInOut.numSection; - UCHAR *pCodebook = pHcr->decInOut.pCodebook; - UCHAR *pSortedCodebook = pHcr->sectionInfo.pSortedCodebook; - USHORT *pNumCodewordInSection = pHcr->sectionInfo.pNumCodewordInSection; - USHORT *pNumSortedCodewordInSection = pHcr->sectionInfo.pNumSortedCodewordInSection; - UCHAR *pCodebookSwitch = pHcr->sectionInfo.pCodebookSwitch; - USHORT *pReorderOffset = pHcr->sectionInfo.pReorderOffset; - const UCHAR *pCbPriority = pHcr->tableInfo.pCbPriority; - const UCHAR *pMinOfCbPair = pHcr->cbPairs.pMinOfCbPair; - const UCHAR *pMaxOfCbPair = pHcr->cbPairs.pMaxOfCbPair; - const UCHAR *pCbDimShift = pHcr->tableInfo.pCbDimShift; + of sorted codebooks and sorts the codebooks and the +numCodewordInSection according to the priority. +-------------------------------------------------------------------------------------------- +*/ + +static void HcrSortCodebookAndNumCodewordInSection(H_HCR_INFO pHcr) { + UINT i, j, k; + UCHAR temp; + UINT counter; + UINT startOffset; + UINT numZeroSection; + UCHAR *pDest; + UINT numSectionDec; + + UINT numSection = pHcr->decInOut.numSection; + UCHAR *pCodebook = pHcr->decInOut.pCodebook; + UCHAR *pSortedCodebook = pHcr->sectionInfo.pSortedCodebook; + USHORT *pNumCodewordInSection = pHcr->sectionInfo.pNumCodewordInSection; + USHORT *pNumSortedCodewordInSection = + pHcr->sectionInfo.pNumSortedCodewordInSection; + UCHAR *pCodebookSwitch = pHcr->sectionInfo.pCodebookSwitch; + USHORT *pReorderOffset = pHcr->sectionInfo.pReorderOffset; + const UCHAR *pCbPriority = aCbPriority; + const UCHAR *pMinOfCbPair = aMinOfCbPair; + const UCHAR *pMaxOfCbPair = aMaxOfCbPair; + const UCHAR *pCbDimShift = aDimCbShift; UINT searchStart = 0; - /* calculate *pNumSortedSection and store the priorities in array pSortedCdebook */ + /* calculate *pNumSortedSection and store the priorities in array + * pSortedCdebook */ pDest = pSortedCodebook; numZeroSection = 0; - for ( i=numSection; i != 0; i-- ) { - if ( pCbPriority[*pCodebook] == 0 ) { + for (i = numSection; i != 0; i--) { + if (pCbPriority[*pCodebook] == 0) { numZeroSection += 1; } *pDest++ = pCbPriority[*pCodebook++]; } - pHcr->sectionInfo.numSortedSection = numSection - numZeroSection; /* numSortedSection contains no zero or intensity section */ + pHcr->sectionInfo.numSortedSection = + numSection - numZeroSection; /* numSortedSection contains no zero or + intensity section */ pCodebook = pHcr->decInOut.pCodebook; /* sort priorities of the codebooks in array pSortedCdebook[] */ numSectionDec = numSection - 1; - if ( numSectionDec > 0 ) { + if (numSectionDec > 0) { counter = numSectionDec; - for ( j=numSectionDec; j != 0; j-- ) { - for ( i=0; i < counter; i++ ) { + for (j = numSectionDec; j != 0; j--) { + for (i = 0; i < counter; i++) { /* swap priorities */ - if ( pSortedCodebook[i+1] > pSortedCodebook[i] ) { - temp = pSortedCodebook[i]; - pSortedCodebook[i] = pSortedCodebook[i+1]; - pSortedCodebook[i+1] = temp; + if (pSortedCodebook[i + 1] > pSortedCodebook[i]) { + temp = pSortedCodebook[i]; + pSortedCodebook[i] = pSortedCodebook[i + 1]; + pSortedCodebook[i + 1] = temp; } } counter -= 1; @@ -798,28 +752,33 @@ static void HcrSortCodebookAndNumCodewordInSection(H_HCR_INFO pHcr) } /* clear codebookSwitch array */ - for ( i = numSection; i != 0; i--) { + for (i = numSection; i != 0; i--) { *pCodebookSwitch++ = 0; } pCodebookSwitch = pHcr->sectionInfo.pCodebookSwitch; - /* sort sectionCodebooks and numCodwordsInSection and calculate pReorderOffst[j] */ - for ( j = 0; j < numSection; j++ ) { - for ( i = searchStart; i < numSection; i++ ) { - if ( pCodebookSwitch[i] == 0 && ( pMinOfCbPair[pSortedCodebook[j]] == pCodebook[i] || pMaxOfCbPair[pSortedCodebook[j]] == pCodebook[i] )) { + /* sort sectionCodebooks and numCodwordsInSection and calculate + * pReorderOffst[j] */ + for (j = 0; j < numSection; j++) { + for (i = searchStart; i < numSection; i++) { + if (pCodebookSwitch[i] == 0 && + (pMinOfCbPair[pSortedCodebook[j]] == pCodebook[i] || + pMaxOfCbPair[pSortedCodebook[j]] == pCodebook[i])) { pCodebookSwitch[i] = 1; - pSortedCodebook[j] = pCodebook[i]; /* sort codebook */ - pNumSortedCodewordInSection[j] = pNumCodewordInSection[i]; /* sort NumCodewordInSection */ + pSortedCodebook[j] = pCodebook[i]; /* sort codebook */ + pNumSortedCodewordInSection[j] = + pNumCodewordInSection[i]; /* sort NumCodewordInSection */ startOffset = 0; - for ( k = 0; k < i; k++ ) { /* make entry in pReorderOffst */ + for (k = 0; k < i; k++) { /* make entry in pReorderOffst */ startOffset += pNumCodewordInSection[k] << pCbDimShift[pCodebook[k]]; } - pReorderOffset[j] = startOffset; /* offset for reordering the codewords */ + pReorderOffset[j] = + startOffset; /* offset for reordering the codewords */ - if(i == searchStart) { - UINT k = i; - while(pCodebookSwitch[k++] == 1) searchStart++; + if (i == searchStart) { + k = i; + while (pCodebookSwitch[k++] == 1) searchStart++; } break; } @@ -827,45 +786,49 @@ static void HcrSortCodebookAndNumCodewordInSection(H_HCR_INFO pHcr) } } - /*--------------------------------------------------------------------------------------------- - description: This function calculates the segmentation, which includes numSegment, - leftStartOfSegment, rightStartOfSegment and remainingBitsInSegment. - The segmentation could be visualized a as kind of 'overlay-grid' for the - bitstream-block holding the HCR-encoded quantized-spectral-coefficients. --------------------------------------------------------------------------------------------- */ - -static void HcrPrepareSegmentationGrid(H_HCR_INFO pHcr) -{ - USHORT i,j; - USHORT numSegment = 0; - USHORT segmentStart = 0; - UCHAR segmentWidth; - UCHAR lastSegmentWidth; - UCHAR sortedCodebook; - UCHAR endFlag = 0; - USHORT intermediateResult; - - SCHAR lengthOfLongestCodeword = pHcr->decInOut.lengthOfLongestCodeword; - SHORT lengthOfReorderedSpectralData = pHcr->decInOut.lengthOfReorderedSpectralData; - UINT numSortedSection = pHcr->sectionInfo.numSortedSection; - UCHAR *pSortedCodebook = pHcr->sectionInfo.pSortedCodebook; - USHORT *pNumSortedCodewordInSection = pHcr->sectionInfo.pNumSortedCodewordInSection; - USHORT *pLeftStartOfSegment = pHcr->segmentInfo.pLeftStartOfSegment; - USHORT *pRightStartOfSegment = pHcr->segmentInfo.pRightStartOfSegment; - SCHAR *pRemainingBitsInSegment = pHcr->segmentInfo.pRemainingBitsInSegment; - USHORT bitstreamIndex = pHcr->decInOut.bitstreamIndex; - const UCHAR *pMaxCwLength = pHcr->tableInfo.pMaxCwLength; - - for ( i=numSortedSection; i != 0; i-- ) { + description: This function calculates the segmentation, which includes +numSegment, leftStartOfSegment, rightStartOfSegment and remainingBitsInSegment. + The segmentation could be visualized a as kind of +'overlay-grid' for the bitstream-block holding the HCR-encoded +quantized-spectral-coefficients. +-------------------------------------------------------------------------------------------- +*/ + +static void HcrPrepareSegmentationGrid(H_HCR_INFO pHcr) { + USHORT i, j; + USHORT numSegment = 0; + INT segmentStart = 0; + UCHAR segmentWidth; + UCHAR lastSegmentWidth; + UCHAR sortedCodebook; + UCHAR endFlag = 0; + INT intermediateResult; + + SCHAR lengthOfLongestCodeword = pHcr->decInOut.lengthOfLongestCodeword; + SHORT lengthOfReorderedSpectralData = + pHcr->decInOut.lengthOfReorderedSpectralData; + UINT numSortedSection = pHcr->sectionInfo.numSortedSection; + UCHAR *pSortedCodebook = pHcr->sectionInfo.pSortedCodebook; + USHORT *pNumSortedCodewordInSection = + pHcr->sectionInfo.pNumSortedCodewordInSection; + INT *pLeftStartOfSegment = pHcr->segmentInfo.pLeftStartOfSegment; + INT *pRightStartOfSegment = pHcr->segmentInfo.pRightStartOfSegment; + SCHAR *pRemainingBitsInSegment = pHcr->segmentInfo.pRemainingBitsInSegment; + INT bitstreamIndex = pHcr->decInOut.bitstreamIndex; + const UCHAR *pMaxCwLength = aMaxCwLen; + + for (i = numSortedSection; i != 0; i--) { sortedCodebook = *pSortedCodebook++; - segmentWidth = FDKmin(pMaxCwLength[sortedCodebook],lengthOfLongestCodeword); + segmentWidth = + fMin((INT)pMaxCwLength[sortedCodebook], (INT)lengthOfLongestCodeword); - for ( j = *pNumSortedCodewordInSection; j != 0 ; j-- ) { + for (j = *pNumSortedCodewordInSection; j != 0; j--) { /* width allows a new segment */ intermediateResult = bitstreamIndex + segmentStart; - if ( (segmentStart + segmentWidth) <= lengthOfReorderedSpectralData ) { - /* store segment start, segment length and increment the number of segments */ + if ((segmentStart + segmentWidth) <= lengthOfReorderedSpectralData) { + /* store segment start, segment length and increment the number of + * segments */ *pLeftStartOfSegment++ = intermediateResult; *pRightStartOfSegment++ = intermediateResult + segmentWidth - 1; *pRemainingBitsInSegment++ = segmentWidth; @@ -882,7 +845,8 @@ static void HcrPrepareSegmentationGrid(H_HCR_INFO pHcr) lastSegmentWidth = lengthOfReorderedSpectralData - segmentStart; *pRemainingBitsInSegment = lastSegmentWidth; - *pRightStartOfSegment = bitstreamIndex + segmentStart + lastSegmentWidth - 1; + *pRightStartOfSegment = + bitstreamIndex + segmentStart + lastSegmentWidth - 1; endFlag = 1; break; } @@ -893,52 +857,50 @@ static void HcrPrepareSegmentationGrid(H_HCR_INFO pHcr) } } pHcr->segmentInfo.numSegment = numSegment; - } - /*--------------------------------------------------------------------------------------------- - description: This function adapts the sorted section boundaries to the boundaries of - segmentation. If the section lengths does not fit completely into the - current segment, the section is spitted into two so called 'extended - sections'. The extended-section-info (pNumExtendedSortedCodewordInSectin - and pExtendedSortedCodebook) is updated in this case. - --------------------------------------------------------------------------------------------- */ - -static void HcrExtendedSectionInfo(H_HCR_INFO pHcr) -{ - UINT srtSecCnt = 0; /* counter for sorted sections */ - UINT xSrtScCnt = 0; /* counter for extended sorted sections */ - UINT remainNumCwInSortSec; - UINT inSegmentRemainNumCW; - - UINT numSortedSection = pHcr->sectionInfo.numSortedSection; - UCHAR *pSortedCodebook = pHcr->sectionInfo.pSortedCodebook; - USHORT *pNumSortedCodewordInSection = pHcr->sectionInfo.pNumSortedCodewordInSection; - UCHAR *pExtendedSortedCoBo = pHcr->sectionInfo.pExtendedSortedCodebook; - USHORT *pNumExtSortCwInSect = pHcr->sectionInfo.pNumExtendedSortedCodewordInSection; - UINT numSegment = pHcr->segmentInfo.numSegment; -#if DETECT_TOO_LONG_CW_READS - UCHAR *pMaxLenOfCbInExtSrtSec = pHcr->sectionInfo.pMaxLenOfCbInExtSrtSec; - SCHAR lengthOfLongestCodeword = pHcr->decInOut.lengthOfLongestCodeword; - const UCHAR *pMaxCwLength = pHcr->tableInfo.pMaxCwLength; -#endif + description: This function adapts the sorted section boundaries to the +boundaries of segmentation. If the section lengths does not fit completely into +the current segment, the section is spitted into two so called 'extended + sections'. The extended-section-info +(pNumExtendedSortedCodewordInSectin and pExtendedSortedCodebook) is updated in +this case. + +-------------------------------------------------------------------------------------------- +*/ + +static void HcrExtendedSectionInfo(H_HCR_INFO pHcr) { + UINT srtSecCnt = 0; /* counter for sorted sections */ + UINT xSrtScCnt = 0; /* counter for extended sorted sections */ + UINT remainNumCwInSortSec; + UINT inSegmentRemainNumCW; + + UINT numSortedSection = pHcr->sectionInfo.numSortedSection; + UCHAR *pSortedCodebook = pHcr->sectionInfo.pSortedCodebook; + USHORT *pNumSortedCodewordInSection = + pHcr->sectionInfo.pNumSortedCodewordInSection; + UCHAR *pExtendedSortedCoBo = pHcr->sectionInfo.pExtendedSortedCodebook; + USHORT *pNumExtSortCwInSect = + pHcr->sectionInfo.pNumExtendedSortedCodewordInSection; + UINT numSegment = pHcr->segmentInfo.numSegment; + UCHAR *pMaxLenOfCbInExtSrtSec = pHcr->sectionInfo.pMaxLenOfCbInExtSrtSec; + SCHAR lengthOfLongestCodeword = pHcr->decInOut.lengthOfLongestCodeword; + const UCHAR *pMaxCwLength = aMaxCwLen; remainNumCwInSortSec = pNumSortedCodewordInSection[srtSecCnt]; inSegmentRemainNumCW = numSegment; while (srtSecCnt < numSortedSection) { if (inSegmentRemainNumCW < remainNumCwInSortSec) { - pNumExtSortCwInSect[xSrtScCnt] = inSegmentRemainNumCW; pExtendedSortedCoBo[xSrtScCnt] = pSortedCodebook[srtSecCnt]; remainNumCwInSortSec -= inSegmentRemainNumCW; inSegmentRemainNumCW = numSegment; - /* data of a sorted section was not integrated in extended sorted section */ - } - else if (inSegmentRemainNumCW == remainNumCwInSortSec) { + /* data of a sorted section was not integrated in extended sorted section + */ + } else if (inSegmentRemainNumCW == remainNumCwInSortSec) { pNumExtSortCwInSect[xSrtScCnt] = inSegmentRemainNumCW; pExtendedSortedCoBo[xSrtScCnt] = pSortedCodebook[srtSecCnt]; @@ -946,74 +908,66 @@ static void HcrExtendedSectionInfo(H_HCR_INFO pHcr) remainNumCwInSortSec = pNumSortedCodewordInSection[srtSecCnt]; inSegmentRemainNumCW = numSegment; /* data of a sorted section was integrated in extended sorted section */ - } - else { /* inSegmentRemainNumCW > remainNumCwInSortSec */ + } else { /* inSegmentRemainNumCW > remainNumCwInSortSec */ pNumExtSortCwInSect[xSrtScCnt] = remainNumCwInSortSec; pExtendedSortedCoBo[xSrtScCnt] = pSortedCodebook[srtSecCnt]; - inSegmentRemainNumCW -= remainNumCwInSortSec; srtSecCnt++; remainNumCwInSortSec = pNumSortedCodewordInSection[srtSecCnt]; /* data of a sorted section was integrated in extended sorted section */ } -#if DETECT_TOO_LONG_CW_READS - pMaxLenOfCbInExtSrtSec[xSrtScCnt] = FDKmin(pMaxCwLength[pExtendedSortedCoBo[xSrtScCnt]],lengthOfLongestCodeword); -#endif - - + pMaxLenOfCbInExtSrtSec[xSrtScCnt] = + fMin((INT)pMaxCwLength[pExtendedSortedCoBo[xSrtScCnt]], + (INT)lengthOfLongestCodeword); xSrtScCnt += 1; - if ( xSrtScCnt >= (MAX_SFB_HCR + MAX_HCR_SETS) ) { + if (xSrtScCnt >= (MAX_SFB_HCR + MAX_HCR_SETS)) { pHcr->decInOut.errorLog |= EXTENDED_SORTED_COUNTER_OVERFLOW; return; } - } pNumExtSortCwInSect[xSrtScCnt] = 0; - } - /*--------------------------------------------------------------------------------------------- - description: This function calculates the number of extended sorted sections which - belong to the sets. Each set from set 0 (one and only set for the PCWs) - till to the last set gets a entry in the array to which + description: This function calculates the number of extended sorted +sections which belong to the sets. Each set from set 0 (one and only set for the +PCWs) till to the last set gets a entry in the array to which 'pNumExtendedSortedSectinsInSets' points to. - Calculation: The entrys in pNumExtendedSortedCodewordInSectin are added - untill the value numSegment is reached. Then the sum_variable is cleared - and the calculation starts from the beginning. As much extended sorted - Sections are summed up to reach the value numSegment, as much is the - current entry in *pNumExtendedSortedCodewordInSectin. --------------------------------------------------------------------------------------------- */ -static void DeriveNumberOfExtendedSortedSectionsInSets(UINT numSegment, - USHORT *pNumExtendedSortedCodewordInSection, - int numExtendedSortedCodewordInSectionIdx, - USHORT *pNumExtendedSortedSectionsInSets, - int numExtendedSortedSectionsInSetsIdx) -{ - USHORT counter = 0; - UINT cwSum = 0; - USHORT *pNumExSortCwInSec = pNumExtendedSortedCodewordInSection; + Calculation: The entrys in +pNumExtendedSortedCodewordInSectin are added untill the value numSegment is +reached. Then the sum_variable is cleared and the calculation starts from the +beginning. As much extended sorted Sections are summed up to reach the value +numSegment, as much is the current entry in *pNumExtendedSortedCodewordInSectin. +-------------------------------------------------------------------------------------------- +*/ +static void DeriveNumberOfExtendedSortedSectionsInSets( + UINT numSegment, USHORT *pNumExtendedSortedCodewordInSection, + int numExtendedSortedCodewordInSectionIdx, + USHORT *pNumExtendedSortedSectionsInSets, + int numExtendedSortedSectionsInSetsIdx) { + USHORT counter = 0; + UINT cwSum = 0; + USHORT *pNumExSortCwInSec = pNumExtendedSortedCodewordInSection; USHORT *pNumExSortSecInSets = pNumExtendedSortedSectionsInSets; - while (pNumExSortCwInSec[numExtendedSortedCodewordInSectionIdx] != 0) - { + while (pNumExSortCwInSec[numExtendedSortedCodewordInSectionIdx] != 0) { cwSum += pNumExSortCwInSec[numExtendedSortedCodewordInSectionIdx]; numExtendedSortedCodewordInSectionIdx++; - if (numExtendedSortedCodewordInSectionIdx >= (MAX_SFB_HCR+MAX_HCR_SETS)) { + if (numExtendedSortedCodewordInSectionIdx >= (MAX_SFB_HCR + MAX_HCR_SETS)) { return; } if (cwSum > numSegment) { return; } counter++; - if (counter > 1024/4) { + if (counter > 1024 / 4) { return; } - if ( cwSum == numSegment ) { + if (cwSum == numSegment) { pNumExSortSecInSets[numExtendedSortedSectionsInSetsIdx] = counter; numExtendedSortedSectionsInSetsIdx++; if (numExtendedSortedSectionsInSetsIdx >= MAX_HCR_SETS) { @@ -1023,99 +977,109 @@ static void DeriveNumberOfExtendedSortedSectionsInSets(UINT numSegment, cwSum = 0; } } - pNumExSortSecInSets[numExtendedSortedSectionsInSetsIdx] = counter; /* save last entry for the last - probably shorter - set */ + pNumExSortSecInSets[numExtendedSortedSectionsInSetsIdx] = + counter; /* save last entry for the last - probably shorter - set */ } - /*--------------------------------------------------------------------------------------------- - description: This function decodes all priority codewords (PCWs) in a spectrum (within - set 0). The calculation of the PCWs is managed in two loops. The - loopcounter of the outer loop is set to the first value pointer - pNumExtendedSortedSectionsInSets points to. This value represents the - number of extended sorted sections within set 0. - The loopcounter of the inner loop is set to the first value pointer - pNumExtendedSortedCodewordInSectin points to. The value represents the - number of extended sorted codewords in sections (the original sections have - been splitted to go along with the borders of the sets). - Each time the number of the extended sorted codewords in sections are de- - coded, the pointer 'pNumExtendedSortedCodewordInSectin' is incremented by - one. --------------------------------------------------------------------------------------------- */ -static void DecodePCWs(HANDLE_FDK_BITSTREAM bs, H_HCR_INFO pHcr) -{ - UINT i; - USHORT extSortSec; - USHORT curExtSortCwInSec; - UCHAR codebook; - UCHAR dimension; - const UINT *pCurrentTree; + description: This function decodes all priority codewords (PCWs) in a +spectrum (within set 0). The calculation of the PCWs is managed in two loops. +The loopcounter of the outer loop is set to the first value pointer + pNumExtendedSortedSectionsInSets points to. This value +represents the number of extended sorted sections within set 0. The loopcounter +of the inner loop is set to the first value pointer + pNumExtendedSortedCodewordInSectin points to. The value +represents the number of extended sorted codewords in sections (the original +sections have been splitted to go along with the borders of the sets). Each time +the number of the extended sorted codewords in sections are de- coded, the +pointer 'pNumExtendedSortedCodewordInSectin' is incremented by one. +-------------------------------------------------------------------------------------------- +*/ +static void DecodePCWs(HANDLE_FDK_BITSTREAM bs, H_HCR_INFO pHcr) { + UINT i; + USHORT extSortSec; + USHORT curExtSortCwInSec; + UCHAR codebook; + UCHAR dimension; + const UINT *pCurrentTree; const SCHAR *pQuantValBase; const SCHAR *pQuantVal; - USHORT *pNumExtendedSortedCodewordInSection = pHcr->sectionInfo.pNumExtendedSortedCodewordInSection; - int numExtendedSortedCodewordInSectionIdx = pHcr->sectionInfo.numExtendedSortedCodewordInSectionIdx; - UCHAR *pExtendedSortedCodebook = pHcr->sectionInfo.pExtendedSortedCodebook; - int extendedSortedCodebookIdx = pHcr->sectionInfo.extendedSortedCodebookIdx; - USHORT *pNumExtendedSortedSectionsInSets = pHcr->sectionInfo.pNumExtendedSortedSectionsInSets; - int numExtendedSortedSectionsInSetsIdx = pHcr->sectionInfo.numExtendedSortedSectionsInSetsIdx; - FIXP_DBL *pQuantizedSpectralCoefficients = SPEC_LONG(pHcr->decInOut.pQuantizedSpectralCoefficientsBase); - int quantizedSpectralCoefficientsIdx = pHcr->decInOut.quantizedSpectralCoefficientsIdx; - USHORT *pLeftStartOfSegment = pHcr->segmentInfo.pLeftStartOfSegment; - SCHAR *pRemainingBitsInSegment = pHcr->segmentInfo.pRemainingBitsInSegment; -#if DETECT_TOO_LONG_CW_READS - UCHAR *pMaxLenOfCbInExtSrtSec = pHcr->sectionInfo.pMaxLenOfCbInExtSrtSec; - int maxLenOfCbInExtSrtSecIdx = pHcr->sectionInfo.maxLenOfCbInExtSrtSecIdx; - UCHAR maxAllowedCwLen; - int numDecodedBits; -#endif - const UCHAR *pCbDimension = pHcr->tableInfo.pCbDimension; - const UCHAR *pCbSign = pHcr->tableInfo.pCbSign; + USHORT *pNumExtendedSortedCodewordInSection = + pHcr->sectionInfo.pNumExtendedSortedCodewordInSection; + int numExtendedSortedCodewordInSectionIdx = + pHcr->sectionInfo.numExtendedSortedCodewordInSectionIdx; + UCHAR *pExtendedSortedCodebook = pHcr->sectionInfo.pExtendedSortedCodebook; + int extendedSortedCodebookIdx = pHcr->sectionInfo.extendedSortedCodebookIdx; + USHORT *pNumExtendedSortedSectionsInSets = + pHcr->sectionInfo.pNumExtendedSortedSectionsInSets; + int numExtendedSortedSectionsInSetsIdx = + pHcr->sectionInfo.numExtendedSortedSectionsInSetsIdx; + FIXP_DBL *pQuantizedSpectralCoefficients = + SPEC_LONG(pHcr->decInOut.pQuantizedSpectralCoefficientsBase); + int quantizedSpectralCoefficientsIdx = + pHcr->decInOut.quantizedSpectralCoefficientsIdx; + INT *pLeftStartOfSegment = pHcr->segmentInfo.pLeftStartOfSegment; + SCHAR *pRemainingBitsInSegment = pHcr->segmentInfo.pRemainingBitsInSegment; + UCHAR *pMaxLenOfCbInExtSrtSec = pHcr->sectionInfo.pMaxLenOfCbInExtSrtSec; + int maxLenOfCbInExtSrtSecIdx = pHcr->sectionInfo.maxLenOfCbInExtSrtSecIdx; + UCHAR maxAllowedCwLen; + int numDecodedBits; + const UCHAR *pCbDimension = aDimCb; + const UCHAR *pCbSign = aSignCb; /* clear result array */ - //pQSC = &pQuantizedSpectralCoefficients[quantizedSpectralCoefficientsIdx]; - //pQSC = *pQuantizedSpectralCoefficients; - - FDKmemclear(pQuantizedSpectralCoefficients+quantizedSpectralCoefficientsIdx,1024*sizeof(FIXP_DBL)); + FDKmemclear(pQuantizedSpectralCoefficients + quantizedSpectralCoefficientsIdx, + 1024 * sizeof(FIXP_DBL)); /* decode all PCWs in the extended sorted section(s) belonging to set 0 */ - for ( extSortSec = pNumExtendedSortedSectionsInSets[numExtendedSortedSectionsInSetsIdx]; extSortSec != 0; extSortSec-- ) { - - codebook = pExtendedSortedCodebook[extendedSortedCodebookIdx]; /* get codebook for this extended sorted section and increment ptr to cb of next ext. sort sec */ + for (extSortSec = + pNumExtendedSortedSectionsInSets[numExtendedSortedSectionsInSetsIdx]; + extSortSec != 0; extSortSec--) { + codebook = + pExtendedSortedCodebook[extendedSortedCodebookIdx]; /* get codebook for + this extended + sorted section + and increment ptr + to cb of next + ext. sort sec */ extendedSortedCodebookIdx++; - if (extendedSortedCodebookIdx >= (MAX_SFB_HCR+MAX_HCR_SETS)) { + if (extendedSortedCodebookIdx >= (MAX_SFB_HCR + MAX_HCR_SETS)) { return; } - dimension = pCbDimension[codebook]; /* get dimension of codebook of this extended sort. sec. */ - pCurrentTree = aHuffTable [codebook]; /* convert codebook to pointer to QSCs */ - pQuantValBase = aQuantTable [codebook]; /* convert codebook to index to table of QSCs */ -#if DETECT_TOO_LONG_CW_READS + dimension = pCbDimension[codebook]; /* get dimension of codebook of this + extended sort. sec. */ + pCurrentTree = + aHuffTable[codebook]; /* convert codebook to pointer to QSCs */ + pQuantValBase = + aQuantTable[codebook]; /* convert codebook to index to table of QSCs */ maxAllowedCwLen = pMaxLenOfCbInExtSrtSec[maxLenOfCbInExtSrtSecIdx]; maxLenOfCbInExtSrtSecIdx++; - if (maxLenOfCbInExtSrtSecIdx >= (MAX_SFB_HCR+MAX_HCR_SETS)) { + if (maxLenOfCbInExtSrtSecIdx >= (MAX_SFB_HCR + MAX_HCR_SETS)) { return; } -#endif /* switch for decoding with different codebooks: */ - if ( pCbSign[codebook] == 0 ) { /* no sign bits follow after the codeword-body */ + if (pCbSign[codebook] == + 0) { /* no sign bits follow after the codeword-body */ /* PCW_BodyONLY */ /*==============*/ - for ( curExtSortCwInSec = pNumExtendedSortedCodewordInSection[numExtendedSortedCodewordInSectionIdx] ; curExtSortCwInSec != 0; curExtSortCwInSec--) { + for (curExtSortCwInSec = pNumExtendedSortedCodewordInSection + [numExtendedSortedCodewordInSectionIdx]; + curExtSortCwInSec != 0; curExtSortCwInSec--) { numDecodedBits = 0; /* decode PCW_BODY */ - pQuantVal = DecodePCW_Body(bs, - pCurrentTree, - pQuantValBase, - pLeftStartOfSegment, - pRemainingBitsInSegment, - &numDecodedBits - ); + pQuantVal = + DecodePCW_Body(bs, pCurrentTree, pQuantValBase, pLeftStartOfSegment, + pRemainingBitsInSegment, &numDecodedBits); /* result is written out here because NO sign bits follow the body */ - for( i=dimension; i != 0 ; i-- ) { - pQuantizedSpectralCoefficients[quantizedSpectralCoefficientsIdx] = (FIXP_DBL) *pQuantVal++; /* write quant. spec. coef. into spectrum; sign is already valid */ + for (i = dimension; i != 0; i--) { + pQuantizedSpectralCoefficients[quantizedSpectralCoefficientsIdx] = + (FIXP_DBL)*pQuantVal++; /* write quant. spec. coef. into + spectrum; sign is already valid */ quantizedSpectralCoefficientsIdx++; if (quantizedSpectralCoefficientsIdx >= 1024) { return; @@ -1124,94 +1088,83 @@ static void DecodePCWs(HANDLE_FDK_BITSTREAM bs, H_HCR_INFO pHcr) /* one more PCW should be decoded */ -#if DETECT_TOO_LONG_CW_READS - if ( maxAllowedCwLen < (numDecodedBits + ERROR_PCW_BODY_ONLY_TOO_LONG) ) { + if (maxAllowedCwLen < (numDecodedBits + ERROR_PCW_BODY_ONLY_TOO_LONG)) { pHcr->decInOut.errorLog |= TOO_MANY_PCW_BODY_BITS_DECODED; } -#endif -#if CHECK_SEGMENTATION_IMMEDIATELY - if (1 == errDetectPcwSegmentation(*pRemainingBitsInSegment-ERROR_PCW_BODY,pHcr,PCW_BODY,pQuantizedSpectralCoefficients+quantizedSpectralCoefficientsIdx-dimension,dimension)) { + if (1 == errDetectPcwSegmentation( + *pRemainingBitsInSegment - ERROR_PCW_BODY, pHcr, PCW_BODY, + pQuantizedSpectralCoefficients + + quantizedSpectralCoefficientsIdx - dimension, + dimension)) { return; } -#endif - pLeftStartOfSegment++; /* update pointer for decoding the next PCW */ - pRemainingBitsInSegment++; /* update pointer for decoding the next PCW */ + pLeftStartOfSegment++; /* update pointer for decoding the next PCW */ + pRemainingBitsInSegment++; /* update pointer for decoding the next PCW + */ } - } - else if (( pCbSign[codebook] == 1 ) && ( codebook < 11 )) { /* possibly there follow 1,2,3 or 4 sign bits after the codeword-body */ + } else if ((codebook < 11) && (pCbSign[codebook] == + 1)) { /* possibly there follow 1,2,3 or 4 + sign bits after the codeword-body */ /* PCW_Body and PCW_Sign */ /*=======================*/ - for ( curExtSortCwInSec = pNumExtendedSortedCodewordInSection[numExtendedSortedCodewordInSectionIdx] ; curExtSortCwInSec != 0; curExtSortCwInSec--) - { + for (curExtSortCwInSec = pNumExtendedSortedCodewordInSection + [numExtendedSortedCodewordInSectionIdx]; + curExtSortCwInSec != 0; curExtSortCwInSec--) { int err; - numDecodedBits = 0; - - pQuantVal = DecodePCW_Body(bs, - pCurrentTree, - pQuantValBase, - pLeftStartOfSegment, - pRemainingBitsInSegment, - &numDecodedBits - ); - - err = DecodePCW_Sign( bs, - dimension, - pQuantVal, - pQuantizedSpectralCoefficients, - &quantizedSpectralCoefficientsIdx, - pLeftStartOfSegment, - pRemainingBitsInSegment, - &numDecodedBits - ); + numDecodedBits = 0; + + pQuantVal = + DecodePCW_Body(bs, pCurrentTree, pQuantValBase, pLeftStartOfSegment, + pRemainingBitsInSegment, &numDecodedBits); + + err = DecodePCW_Sign( + bs, dimension, pQuantVal, pQuantizedSpectralCoefficients, + &quantizedSpectralCoefficientsIdx, pLeftStartOfSegment, + pRemainingBitsInSegment, &numDecodedBits); if (err != 0) { return; } /* one more PCW should be decoded */ -#if DETECT_TOO_LONG_CW_READS - if ( maxAllowedCwLen < (numDecodedBits + ERROR_PCW_BODY_SIGN_TOO_LONG) ) { + if (maxAllowedCwLen < (numDecodedBits + ERROR_PCW_BODY_SIGN_TOO_LONG)) { pHcr->decInOut.errorLog |= TOO_MANY_PCW_BODY_SIGN_BITS_DECODED; } -#endif -#if CHECK_SEGMENTATION_IMMEDIATELY - if (1 == errDetectPcwSegmentation(*pRemainingBitsInSegment-ERROR_PCW_BODY_SIGN,pHcr,PCW_BODY_SIGN, pQuantizedSpectralCoefficients+quantizedSpectralCoefficientsIdx-dimension,dimension)) { + if (1 == errDetectPcwSegmentation( + *pRemainingBitsInSegment - ERROR_PCW_BODY_SIGN, pHcr, + PCW_BODY_SIGN, + pQuantizedSpectralCoefficients + + quantizedSpectralCoefficientsIdx - dimension, + dimension)) { return; } -#endif pLeftStartOfSegment++; pRemainingBitsInSegment++; } - } - else if (( pCbSign[codebook] == 1 ) && ( codebook >= 11 )) { /* possibly there follow some sign bits and maybe one or two escape sequences after the cw-body */ + } else if ((pCbSign[codebook] == 1) && + (codebook >= 11)) { /* possibly there follow some sign bits and + maybe one or two escape sequences after + the cw-body */ /* PCW_Body, PCW_Sign and maybe PCW_Escape */ /*=========================================*/ - for ( curExtSortCwInSec = pNumExtendedSortedCodewordInSection[numExtendedSortedCodewordInSectionIdx] ; curExtSortCwInSec != 0; curExtSortCwInSec--) - { + for (curExtSortCwInSec = pNumExtendedSortedCodewordInSection + [numExtendedSortedCodewordInSectionIdx]; + curExtSortCwInSec != 0; curExtSortCwInSec--) { int err; - numDecodedBits = 0; + numDecodedBits = 0; /* decode PCW_BODY */ - pQuantVal = DecodePCW_Body(bs, - pCurrentTree, - pQuantValBase, - pLeftStartOfSegment, - pRemainingBitsInSegment, - &numDecodedBits - ); - - err = DecodePCW_Sign( bs, - dimension, - pQuantVal, - pQuantizedSpectralCoefficients, - &quantizedSpectralCoefficientsIdx, - pLeftStartOfSegment, - pRemainingBitsInSegment, - &numDecodedBits - ); + pQuantVal = + DecodePCW_Body(bs, pCurrentTree, pQuantValBase, pLeftStartOfSegment, + pRemainingBitsInSegment, &numDecodedBits); + + err = DecodePCW_Sign( + bs, dimension, pQuantVal, pQuantizedSpectralCoefficients, + &quantizedSpectralCoefficientsIdx, pLeftStartOfSegment, + pRemainingBitsInSegment, &numDecodedBits); if (err != 0) { return; } @@ -1219,26 +1172,32 @@ static void DecodePCWs(HANDLE_FDK_BITSTREAM bs, H_HCR_INFO pHcr) /* decode PCW_ESCAPE if present */ quantizedSpectralCoefficientsIdx -= DIMENSION_OF_ESCAPE_CODEBOOK; - if ( fixp_abs(pQuantizedSpectralCoefficients[quantizedSpectralCoefficientsIdx]) == (FIXP_DBL)ESCAPE_VALUE ) { - pQuantizedSpectralCoefficients[quantizedSpectralCoefficientsIdx] = (FIXP_DBL) DecodeEscapeSequence( bs, - pQuantizedSpectralCoefficients[quantizedSpectralCoefficientsIdx], - pLeftStartOfSegment, - pRemainingBitsInSegment, - &numDecodedBits - ); + if (fixp_abs(pQuantizedSpectralCoefficients + [quantizedSpectralCoefficientsIdx]) == + (FIXP_DBL)ESCAPE_VALUE) { + pQuantizedSpectralCoefficients[quantizedSpectralCoefficientsIdx] = + (FIXP_DBL)DecodeEscapeSequence( + bs, + pQuantizedSpectralCoefficients + [quantizedSpectralCoefficientsIdx], + pLeftStartOfSegment, pRemainingBitsInSegment, + &numDecodedBits); } quantizedSpectralCoefficientsIdx++; if (quantizedSpectralCoefficientsIdx >= 1024) { return; } - if ( fixp_abs(pQuantizedSpectralCoefficients[quantizedSpectralCoefficientsIdx]) == (FIXP_DBL)ESCAPE_VALUE ) { - pQuantizedSpectralCoefficients[quantizedSpectralCoefficientsIdx] = (FIXP_DBL) DecodeEscapeSequence( bs, - pQuantizedSpectralCoefficients[quantizedSpectralCoefficientsIdx], - pLeftStartOfSegment, - pRemainingBitsInSegment, - &numDecodedBits - ); + if (fixp_abs(pQuantizedSpectralCoefficients + [quantizedSpectralCoefficientsIdx]) == + (FIXP_DBL)ESCAPE_VALUE) { + pQuantizedSpectralCoefficients[quantizedSpectralCoefficientsIdx] = + (FIXP_DBL)DecodeEscapeSequence( + bs, + pQuantizedSpectralCoefficients + [quantizedSpectralCoefficientsIdx], + pLeftStartOfSegment, pRemainingBitsInSegment, + &numDecodedBits); } quantizedSpectralCoefficientsIdx++; if (quantizedSpectralCoefficientsIdx >= 1024) { @@ -1247,17 +1206,20 @@ static void DecodePCWs(HANDLE_FDK_BITSTREAM bs, H_HCR_INFO pHcr) /* one more PCW should be decoded */ -#if DETECT_TOO_LONG_CW_READS - if ( maxAllowedCwLen < (numDecodedBits + ERROR_PCW_BODY_SIGN_ESC_TOO_LONG) ) { + if (maxAllowedCwLen < + (numDecodedBits + ERROR_PCW_BODY_SIGN_ESC_TOO_LONG)) { pHcr->decInOut.errorLog |= TOO_MANY_PCW_BODY_SIGN_ESC_BITS_DECODED; } -#endif -#if CHECK_SEGMENTATION_IMMEDIATELY - if (1 == errDetectPcwSegmentation(*pRemainingBitsInSegment-ERROR_PCW_BODY_SIGN_ESC,pHcr,PCW_BODY_SIGN_ESC,pQuantizedSpectralCoefficients+quantizedSpectralCoefficientsIdx-DIMENSION_OF_ESCAPE_CODEBOOK,DIMENSION_OF_ESCAPE_CODEBOOK)) { + if (1 == errDetectPcwSegmentation( + *pRemainingBitsInSegment - ERROR_PCW_BODY_SIGN_ESC, pHcr, + PCW_BODY_SIGN_ESC, + pQuantizedSpectralCoefficients + + quantizedSpectralCoefficientsIdx - + DIMENSION_OF_ESCAPE_CODEBOOK, + DIMENSION_OF_ESCAPE_CODEBOOK)) { return; } -#endif pLeftStartOfSegment++; pRemainingBitsInSegment++; } @@ -1265,7 +1227,7 @@ static void DecodePCWs(HANDLE_FDK_BITSTREAM bs, H_HCR_INFO pHcr) /* all PCWs belonging to this extended section should be decoded */ numExtendedSortedCodewordInSectionIdx++; - if (numExtendedSortedCodewordInSectionIdx >= MAX_SFB_HCR+MAX_HCR_SETS) { + if (numExtendedSortedCodewordInSectionIdx >= MAX_SFB_HCR + MAX_HCR_SETS) { return; } } @@ -1277,66 +1239,65 @@ static void DecodePCWs(HANDLE_FDK_BITSTREAM bs, H_HCR_INFO pHcr) } /* Write back indexes into structure */ - pHcr->sectionInfo.numExtendedSortedCodewordInSectionIdx = numExtendedSortedCodewordInSectionIdx; + pHcr->sectionInfo.numExtendedSortedCodewordInSectionIdx = + numExtendedSortedCodewordInSectionIdx; pHcr->sectionInfo.extendedSortedCodebookIdx = extendedSortedCodebookIdx; - pHcr->sectionInfo.numExtendedSortedSectionsInSetsIdx = numExtendedSortedSectionsInSetsIdx; - pHcr->decInOut.quantizedSpectralCoefficientsIdx = quantizedSpectralCoefficientsIdx; + pHcr->sectionInfo.numExtendedSortedSectionsInSetsIdx = + numExtendedSortedSectionsInSetsIdx; + pHcr->decInOut.quantizedSpectralCoefficientsIdx = + quantizedSpectralCoefficientsIdx; pHcr->sectionInfo.maxLenOfCbInExtSrtSecIdx = maxLenOfCbInExtSrtSecIdx; } -#if CHECK_SEGMENTATION_IMMEDIATELY /*--------------------------------------------------------------------------------------------- - description: This function checks immediately after every decoded PCW, whether out of - the current segment too many bits have been read or not. If an error occurrs, - probably the sideinfo or the HCR-bitstream block holding the huffman - encoded quantized spectral coefficients is distorted. In this case the two - or four quantized spectral coefficients belonging to the current codeword + description: This function checks immediately after every decoded PCW, +whether out of the current segment too many bits have been read or not. If an +error occurrs, probably the sideinfo or the HCR-bitstream block holding the +huffman encoded quantized spectral coefficients is distorted. In this case the +two or four quantized spectral coefficients belonging to the current codeword are marked (for being detected by concealment later). --------------------------------------------------------------------------------------------- */ -static UCHAR errDetectPcwSegmentation(SCHAR remainingBitsInSegment, - H_HCR_INFO pHcr, - PCW_TYPE kind, - FIXP_DBL *qsc_base_of_cw, - UCHAR dimension) -{ +-------------------------------------------------------------------------------------------- +*/ +static UCHAR errDetectPcwSegmentation(SCHAR remainingBitsInSegment, + H_HCR_INFO pHcr, PCW_TYPE kind, + FIXP_DBL *qsc_base_of_cw, + UCHAR dimension) { SCHAR i; - if ( remainingBitsInSegment < 0 ) { + if (remainingBitsInSegment < 0) { /* log the error */ switch (kind) { - case PCW_BODY: + case PCW_BODY: pHcr->decInOut.errorLog |= SEGMENT_OVERRIDE_ERR_PCW_BODY; break; - case PCW_BODY_SIGN: + case PCW_BODY_SIGN: pHcr->decInOut.errorLog |= SEGMENT_OVERRIDE_ERR_PCW_BODY_SIGN; break; - case PCW_BODY_SIGN_ESC: + case PCW_BODY_SIGN_ESC: pHcr->decInOut.errorLog |= SEGMENT_OVERRIDE_ERR_PCW_BODY_SIGN_ESC; break; } /* mark the erred lines */ - for ( i = dimension; i != 0; i-- ) { - *qsc_base_of_cw++ = (FIXP_DBL) Q_VALUE_INVALID; + for (i = dimension; i != 0; i--) { + *qsc_base_of_cw++ = (FIXP_DBL)Q_VALUE_INVALID; } return 1; } return 0; } -#endif -#if CHECK_SEGMENTATION_FINAL /*--------------------------------------------------------------------------------------------- - description: This function checks if all segments are empty after decoding. There - are _no lines markded_ as invalid because it could not be traced back - where from the remaining bits are. --------------------------------------------------------------------------------------------- */ -static void errDetectWithinSegmentationFinal(H_HCR_INFO pHcr) -{ - UCHAR segmentationErrorFlag = 0; - USHORT i; - SCHAR *pRemainingBitsInSegment = pHcr->segmentInfo.pRemainingBitsInSegment; - UINT numSegment = pHcr->segmentInfo.numSegment; - - for ( i=numSegment; i != 0 ; i--) { + description: This function checks if all segments are empty after +decoding. There are _no lines markded_ as invalid because it could not be traced +back where from the remaining bits are. +-------------------------------------------------------------------------------------------- +*/ +static void errDetectWithinSegmentationFinal(H_HCR_INFO pHcr) { + UCHAR segmentationErrorFlag = 0; + USHORT i; + SCHAR *pRemainingBitsInSegment = pHcr->segmentInfo.pRemainingBitsInSegment; + UINT numSegment = pHcr->segmentInfo.numSegment; + + for (i = numSegment; i != 0; i--) { if (*pRemainingBitsInSegment++ != 0) { segmentationErrorFlag = 1; } @@ -1345,125 +1306,114 @@ static void errDetectWithinSegmentationFinal(H_HCR_INFO pHcr) pHcr->decInOut.errorLog |= BIT_IN_SEGMENTATION_ERROR; } } -#endif /*--------------------------------------------------------------------------------------------- - description: This function walks one step within the decoding tree. Which branch is - taken depends on the decoded carryBit input parameter. --------------------------------------------------------------------------------------------- */ -void CarryBitToBranchValue(UCHAR carryBit, - UINT treeNode, - UINT *branchValue, - UINT *branchNode) -{ + description: This function walks one step within the decoding tree. Which +branch is taken depends on the decoded carryBit input parameter. +-------------------------------------------------------------------------------------------- +*/ +void CarryBitToBranchValue(UCHAR carryBit, UINT treeNode, UINT *branchValue, + UINT *branchNode) { if (carryBit == 0) { - *branchNode = (treeNode & MASK_LEFT) >> LEFT_OFFSET; /* MASK_LEFT: 00FFF000 */ - } - else { - *branchNode = treeNode & MASK_RIGHT; /* MASK_RIGHT: 00000FFF */ + *branchNode = + (treeNode & MASK_LEFT) >> LEFT_OFFSET; /* MASK_LEFT: 00FFF000 */ + } else { + *branchNode = treeNode & MASK_RIGHT; /* MASK_RIGHT: 00000FFF */ } - *branchValue = *branchNode & CLR_BIT_10; /* clear bit 10 (if set) */ + *branchValue = *branchNode & CLR_BIT_10; /* clear bit 10 (if set) */ } - /*--------------------------------------------------------------------------------------------- description: Decodes the body of a priority codeword (PCW) ----------------------------------------------------------------------------------------------- - return: - return value is pointer to first of two or four quantized spectral - coefficients --------------------------------------------------------------------------------------------- */ -static const SCHAR *DecodePCW_Body(HANDLE_FDK_BITSTREAM bs, - const UINT *pCurrentTree, - const SCHAR *pQuantValBase, - USHORT *pLeftStartOfSegment, - SCHAR *pRemainingBitsInSegment, - int *pNumDecodedBits - ) -{ + return: - return value is pointer to first of two or four quantized +spectral coefficients +-------------------------------------------------------------------------------------------- +*/ +static const SCHAR *DecodePCW_Body(HANDLE_FDK_BITSTREAM bs, + const UINT *pCurrentTree, + const SCHAR *pQuantValBase, + INT *pLeftStartOfSegment, + SCHAR *pRemainingBitsInSegment, + int *pNumDecodedBits) { UCHAR carryBit; - UINT branchNode; - UINT treeNode; - UINT branchValue; - const SCHAR *pQuantVal; + UINT branchNode; + UINT treeNode; + UINT branchValue; + const SCHAR *pQuantVal; /* decode PCW_BODY */ - treeNode = *pCurrentTree; /* get first node of current tree belonging to current codebook */ + treeNode = *pCurrentTree; /* get first node of current tree belonging to + current codebook */ /* decode whole PCW-codeword-body */ while (1) { - - carryBit = HcrGetABitFromBitstream(bs, - pLeftStartOfSegment, - pLeftStartOfSegment, /* dummy */ + carryBit = HcrGetABitFromBitstream(bs, pLeftStartOfSegment, + pLeftStartOfSegment, /* dummy */ FROM_LEFT_TO_RIGHT); *pRemainingBitsInSegment -= 1; *pNumDecodedBits += 1; - CarryBitToBranchValue(carryBit, - treeNode, - &branchValue, - &branchNode); + CarryBitToBranchValue(carryBit, treeNode, &branchValue, &branchNode); - if ((branchNode & TEST_BIT_10) == TEST_BIT_10) { /* test bit 10 ; if set --> codeword-body is complete */ - break; /* end of branch in tree reached i.e. a whole PCW-Body is decoded */ - } - else { - treeNode = *(pCurrentTree + branchValue); /* update treeNode for further step in decoding tree */ + if ((branchNode & TEST_BIT_10) == + TEST_BIT_10) { /* test bit 10 ; if set --> codeword-body is complete */ + break; /* end of branch in tree reached i.e. a whole PCW-Body is decoded + */ + } else { + treeNode = *( + pCurrentTree + + branchValue); /* update treeNode for further step in decoding tree */ } - } - pQuantVal = pQuantValBase + branchValue; /* update pointer to valid first of 2 or 4 quantized values */ + pQuantVal = + pQuantValBase + branchValue; /* update pointer to valid first of 2 or 4 + quantized values */ return pQuantVal; } - /*--------------------------------------------------------------------------------------------- - description: This function decodes one escape sequence. In case of a escape codebook - and in case of the absolute value of the quantized spectral value == 16, - a escapeSequence is decoded in two steps: + description: This function decodes one escape sequence. In case of a +escape codebook and in case of the absolute value of the quantized spectral +value == 16, a escapeSequence is decoded in two steps: 1. escape prefix 2. escape word --------------------------------------------------------------------------------------------- */ - -static INT DecodeEscapeSequence(HANDLE_FDK_BITSTREAM bs, - INT quantSpecCoef, - USHORT *pLeftStartOfSegment, - SCHAR *pRemainingBitsInSegment, - int *pNumDecodedBits - ) -{ - UINT i; - INT sign; - UINT escapeOnesCounter = 0; - UINT carryBit; - INT escape_word = 0; +-------------------------------------------------------------------------------------------- +*/ + +static INT DecodeEscapeSequence(HANDLE_FDK_BITSTREAM bs, INT quantSpecCoef, + INT *pLeftStartOfSegment, + SCHAR *pRemainingBitsInSegment, + int *pNumDecodedBits) { + UINT i; + INT sign; + UINT escapeOnesCounter = 0; + UINT carryBit; + INT escape_word = 0; /* decode escape prefix */ while (1) { - carryBit = HcrGetABitFromBitstream(bs, - pLeftStartOfSegment, - pLeftStartOfSegment, /* dummy */ + carryBit = HcrGetABitFromBitstream(bs, pLeftStartOfSegment, + pLeftStartOfSegment, /* dummy */ FROM_LEFT_TO_RIGHT); *pRemainingBitsInSegment -= 1; *pNumDecodedBits += 1; if (carryBit != 0) { escapeOnesCounter += 1; - } - else { + } else { escapeOnesCounter += 4; break; } } /* decode escape word */ - for( i=escapeOnesCounter; i != 0 ; i-- ) { - carryBit = HcrGetABitFromBitstream(bs, - pLeftStartOfSegment, - pLeftStartOfSegment, /* dummy */ + for (i = escapeOnesCounter; i != 0; i--) { + carryBit = HcrGetABitFromBitstream(bs, pLeftStartOfSegment, + pLeftStartOfSegment, /* dummy */ FROM_LEFT_TO_RIGHT); *pRemainingBitsInSegment -= 1; *pNumDecodedBits += 1; @@ -1474,61 +1424,54 @@ static INT DecodeEscapeSequence(HANDLE_FDK_BITSTREAM bs, sign = (quantSpecCoef >= 0) ? 1 : -1; - quantSpecCoef = sign * (((INT ) 1 << escapeOnesCounter) + escape_word); + quantSpecCoef = sign * (((INT)1 << escapeOnesCounter) + escape_word); return quantSpecCoef; } - /*--------------------------------------------------------------------------------------------- - description: Decodes the Signbits of a priority codeword (PCW) and writes out the - resulting quantized spectral values into unsorted sections + description: Decodes the Signbits of a priority codeword (PCW) and writes +out the resulting quantized spectral values into unsorted sections ----------------------------------------------------------------------------------------------- - output: - two or four lines at position in corresponding section (which are not - located at the desired position, i.e. they must be reordered in the last - of eight function of HCR) + output: - two or four lines at position in corresponding section +(which are not located at the desired position, i.e. they must be reordered in +the last of eight function of HCR) ----------------------------------------------------------------------------------------------- - return: - updated pQuantSpecCoef pointer (to next empty storage for a line) --------------------------------------------------------------------------------------------- */ -static int DecodePCW_Sign(HANDLE_FDK_BITSTREAM bs, - UINT codebookDim, - const SCHAR *pQuantVal, - FIXP_DBL *pQuantSpecCoef, - int *quantSpecCoefIdx, - USHORT *pLeftStartOfSegment, - SCHAR *pRemainingBitsInSegment, - int *pNumDecodedBits - ) -{ - UINT i; - UINT carryBit; - INT quantSpecCoef; - - for( i=codebookDim; i != 0 ; i-- ) { + return: - updated pQuantSpecCoef pointer (to next empty storage for a +line) +-------------------------------------------------------------------------------------------- +*/ +static int DecodePCW_Sign(HANDLE_FDK_BITSTREAM bs, UINT codebookDim, + const SCHAR *pQuantVal, FIXP_DBL *pQuantSpecCoef, + int *quantSpecCoefIdx, INT *pLeftStartOfSegment, + SCHAR *pRemainingBitsInSegment, + int *pNumDecodedBits) { + UINT i; + UINT carryBit; + INT quantSpecCoef; + + for (i = codebookDim; i != 0; i--) { quantSpecCoef = *pQuantVal++; if (quantSpecCoef != 0) { - carryBit = HcrGetABitFromBitstream(bs, - pLeftStartOfSegment, - pLeftStartOfSegment, /* dummy */ + carryBit = HcrGetABitFromBitstream(bs, pLeftStartOfSegment, + pLeftStartOfSegment, /* dummy */ FROM_LEFT_TO_RIGHT); *pRemainingBitsInSegment -= 1; *pNumDecodedBits += 1; - if (*pRemainingBitsInSegment < 0 || *pNumDecodedBits >= (1024>>1)) { + if (*pRemainingBitsInSegment < 0 || *pNumDecodedBits >= (1024 >> 1)) { return -1; } /* adapt sign of values according to the decoded sign bit */ if (carryBit != 0) { pQuantSpecCoef[*quantSpecCoefIdx] = -(FIXP_DBL)quantSpecCoef; + } else { + pQuantSpecCoef[*quantSpecCoefIdx] = (FIXP_DBL)quantSpecCoef; } - else { - pQuantSpecCoef[*quantSpecCoefIdx] = (FIXP_DBL)quantSpecCoef; - } - } - else { + } else { pQuantSpecCoef[*quantSpecCoefIdx] = FL2FXCONST_DBL(0.0f); } - *quantSpecCoefIdx += 1 ; + *quantSpecCoefIdx += 1; if (*quantSpecCoefIdx >= 1024) { return -1; } @@ -1536,56 +1479,20 @@ static int DecodePCW_Sign(HANDLE_FDK_BITSTREAM bs, return 0; } - /*--------------------------------------------------------------------------------------------- - description: Mutes spectral lines which have been marked as erroneous (Q_VALUE_INVALID) --------------------------------------------------------------------------------------------- */ -void HcrMuteErroneousLines(H_HCR_INFO hHcr) -{ + description: Mutes spectral lines which have been marked as erroneous +(Q_VALUE_INVALID) +-------------------------------------------------------------------------------------------- +*/ +void HcrMuteErroneousLines(H_HCR_INFO hHcr) { int c; - FIXP_DBL *RESTRICT pLong = SPEC_LONG(hHcr->decInOut.pQuantizedSpectralCoefficientsBase); + FIXP_DBL *RESTRICT pLong = + SPEC_LONG(hHcr->decInOut.pQuantizedSpectralCoefficientsBase); /* if there is a line with value Q_VALUE_INVALID mute it */ for (c = 0; c < 1024; c++) { if (pLong[c] == (FIXP_DBL)Q_VALUE_INVALID) { -#if HCR_LISTEN_TO_MUTED_LINES - pLong[c] = (FIXP_DBL)HCR_DIRAC; /* marking */ -#else - pLong[c] = FL2FXCONST_DBL(0.0f); /* muting */ -#endif + pLong[c] = FL2FXCONST_DBL(0.0f); /* muting */ } } } - - -/*--------------------------------------------------------------------------------------------- - description: Sets global HCR type --------------------------------------------------------------------------------------------- */ -void setHcrType(H_HCR_INFO hHcr, MP4_ELEMENT_ID type) -{ - switch (type) { - case ID_SCE: - hHcr->globalHcrType = 0; - break; - case ID_CPE: - hHcr->globalHcrType = 1; - break; - default: - break; - } -} - - -/*--------------------------------------------------------------------------------------------- - description: Gets HCR type from the HCR data structure ------------------------------------------------------------------------------------------------ - return: - global HCR type --------------------------------------------------------------------------------------------- */ -INT getHcrType(H_HCR_INFO hHcr) -{ - return hHcr->globalHcrType; -} - - - - |