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+
+/* -----------------------------------------------------------------------------------------------------------
+Software License for The Fraunhofer FDK AAC Codec Library for Android
+
+© Copyright 1995 - 2012 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
+ All rights reserved.
+
+ 1. INTRODUCTION
+The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
+the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
+This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
+
+AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
+audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
+independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
+of the MPEG specifications.
+
+Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
+may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
+individually for the purpose of encoding or decoding bit streams in products that are compliant with
+the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
+these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
+software may already be covered under those patent licenses when it is used for those licensed purposes only.
+
+Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
+are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
+applications information and documentation.
+
+2. COPYRIGHT LICENSE
+
+Redistribution and use in source and binary forms, with or without modification, are permitted without
+payment of copyright license fees provided that you satisfy the following conditions:
+
+You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
+your modifications thereto in source code form.
+
+You must retain the complete text of this software license in the documentation and/or other materials
+provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
+You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
+modifications thereto to recipients of copies in binary form.
+
+The name of Fraunhofer may not be used to endorse or promote products derived from this library without
+prior written permission.
+
+You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
+software or your modifications thereto.
+
+Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
+and the date of any change. For modified versions of the FDK AAC Codec, the term
+"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
+"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
+
+3. NO PATENT LICENSE
+
+NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
+ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
+respect to this software.
+
+You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
+by appropriate patent licenses.
+
+4. DISCLAIMER
+
+This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
+"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
+of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
+including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
+or business interruption, however caused and on any theory of liability, whether in contract, strict
+liability, or tort (including negligence), arising in any way out of the use of this software, even if
+advised of the possibility of such damage.
+
+5. CONTACT INFORMATION
+
+Fraunhofer Institute for Integrated Circuits IIS
+Attention: Audio and Multimedia Departments - FDK AAC LL
+Am Wolfsmantel 33
+91058 Erlangen, Germany
+
+www.iis.fraunhofer.de/amm
+amm-info@iis.fraunhofer.de
+----------------------------------------------------------------------------------------------------------- */
+
+/***************************** MPEG Audio Encoder ***************************
+
+ Initial author: N. Rettelbach
+ contents/description: Parametric Stereo bitstream encoder
+
+******************************************************************************/
+
+#include "ps_main.h"
+
+
+#include "ps_const.h"
+#include "ps_bitenc.h"
+
+static
+inline UCHAR FDKsbrEnc_WriteBits_ps(HANDLE_FDK_BITSTREAM hBitStream, UINT value,
+ const UINT numberOfBits)
+{
+ /* hBitStream == NULL happens here intentionally */
+ if(hBitStream!=NULL){
+ FDKwriteBits(hBitStream, value, numberOfBits);
+ }
+ return numberOfBits;
+}
+
+#define SI_SBR_EXTENSION_SIZE_BITS 4
+#define SI_SBR_EXTENSION_ESC_COUNT_BITS 8
+#define SI_SBR_EXTENSION_ID_BITS 2
+#define EXTENSION_ID_PS_CODING 2
+#define PS_EXT_ID_V0 0
+
+static const INT iidDeltaCoarse_Offset = 14;
+static const INT iidDeltaCoarse_MaxVal = 28;
+static const INT iidDeltaFine_Offset = 30;
+static const INT iidDeltaFine_MaxVal = 60;
+
+/* PS Stereo Huffmantable: iidDeltaFreqCoarse */
+static const UINT iidDeltaFreqCoarse_Length[] =
+{
+ 17, 17, 17, 17, 16, 15, 13, 10, 9, 7,
+ 6, 5, 4, 3, 1, 3, 4, 5, 6, 6,
+ 8, 11, 13, 14, 14, 15, 17, 18, 18
+};
+static const UINT iidDeltaFreqCoarse_Code[] =
+{
+ 0x0001fffb, 0x0001fffc, 0x0001fffd, 0x0001fffa, 0x0000fffc, 0x00007ffc, 0x00001ffd, 0x000003fe, 0x000001fe, 0x0000007e,
+ 0x0000003c, 0x0000001d, 0x0000000d, 0x00000005, 0000000000, 0x00000004, 0x0000000c, 0x0000001c, 0x0000003d, 0x0000003e,
+ 0x000000fe, 0x000007fe, 0x00001ffc, 0x00003ffc, 0x00003ffd, 0x00007ffd, 0x0001fffe, 0x0003fffe, 0x0003ffff
+};
+
+/* PS Stereo Huffmantable: iidDeltaFreqFine */
+static const UINT iidDeltaFreqFine_Length[] =
+{
+ 18, 18, 18, 18, 18, 18, 18, 18, 18, 17,
+ 18, 17, 17, 16, 16, 15, 14, 14, 13, 12,
+ 12, 11, 10, 10, 8, 7, 6, 5, 4, 3,
+ 1, 3, 4, 5, 6, 7, 8, 9, 10, 11,
+ 11, 12, 13, 14, 14, 15, 16, 16, 17, 17,
+ 18, 17, 18, 18, 18, 18, 18, 18, 18, 18,
+ 18
+};
+static const UINT iidDeltaFreqFine_Code[] =
+{
+ 0x0001feb4, 0x0001feb5, 0x0001fd76, 0x0001fd77, 0x0001fd74, 0x0001fd75, 0x0001fe8a, 0x0001fe8b, 0x0001fe88, 0x0000fe80,
+ 0x0001feb6, 0x0000fe82, 0x0000feb8, 0x00007f42, 0x00007fae, 0x00003faf, 0x00001fd1, 0x00001fe9, 0x00000fe9, 0x000007ea,
+ 0x000007fb, 0x000003fb, 0x000001fb, 0x000001ff, 0x0000007c, 0x0000003c, 0x0000001c, 0x0000000c, 0000000000, 0x00000001,
+ 0x00000001, 0x00000002, 0x00000001, 0x0000000d, 0x0000001d, 0x0000003d, 0x0000007d, 0x000000fc, 0x000001fc, 0x000003fc,
+ 0x000003f4, 0x000007eb, 0x00000fea, 0x00001fea, 0x00001fd6, 0x00003fd0, 0x00007faf, 0x00007f43, 0x0000feb9, 0x0000fe83,
+ 0x0001feb7, 0x0000fe81, 0x0001fe89, 0x0001fe8e, 0x0001fe8f, 0x0001fe8c, 0x0001fe8d, 0x0001feb2, 0x0001feb3, 0x0001feb0,
+ 0x0001feb1
+};
+
+/* PS Stereo Huffmantable: iidDeltaTimeCoarse */
+static const UINT iidDeltaTimeCoarse_Length[] =
+{
+ 19, 19, 19, 20, 20, 20, 17, 15, 12, 10,
+ 8, 6, 4, 2, 1, 3, 5, 7, 9, 11,
+ 13, 14, 17, 19, 20, 20, 20, 20, 20
+};
+static const UINT iidDeltaTimeCoarse_Code[] =
+{
+ 0x0007fff9, 0x0007fffa, 0x0007fffb, 0x000ffff8, 0x000ffff9, 0x000ffffa, 0x0001fffd, 0x00007ffe, 0x00000ffe, 0x000003fe,
+ 0x000000fe, 0x0000003e, 0x0000000e, 0x00000002, 0000000000, 0x00000006, 0x0000001e, 0x0000007e, 0x000001fe, 0x000007fe,
+ 0x00001ffe, 0x00003ffe, 0x0001fffc, 0x0007fff8, 0x000ffffb, 0x000ffffc, 0x000ffffd, 0x000ffffe, 0x000fffff
+};
+
+/* PS Stereo Huffmantable: iidDeltaTimeFine */
+static const UINT iidDeltaTimeFine_Length[] =
+{
+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 15,
+ 15, 15, 15, 15, 15, 14, 14, 13, 13, 13,
+ 12, 12, 11, 10, 9, 9, 7, 6, 5, 3,
+ 1, 2, 5, 6, 7, 8, 9, 10, 11, 11,
+ 12, 12, 13, 13, 14, 14, 15, 15, 15, 15,
+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
+ 16
+};
+static const UINT iidDeltaTimeFine_Code[] =
+{
+ 0x00004ed4, 0x00004ed5, 0x00004ece, 0x00004ecf, 0x00004ecc, 0x00004ed6, 0x00004ed8, 0x00004f46, 0x00004f60, 0x00002718,
+ 0x00002719, 0x00002764, 0x00002765, 0x0000276d, 0x000027b1, 0x000013b7, 0x000013d6, 0x000009c7, 0x000009e9, 0x000009ed,
+ 0x000004ee, 0x000004f7, 0x00000278, 0x00000139, 0x0000009a, 0x0000009f, 0x00000020, 0x00000011, 0x0000000a, 0x00000003,
+ 0x00000001, 0000000000, 0x0000000b, 0x00000012, 0x00000021, 0x0000004c, 0x0000009b, 0x0000013a, 0x00000279, 0x00000270,
+ 0x000004ef, 0x000004e2, 0x000009ea, 0x000009d8, 0x000013d7, 0x000013d0, 0x000027b2, 0x000027a2, 0x0000271a, 0x0000271b,
+ 0x00004f66, 0x00004f67, 0x00004f61, 0x00004f47, 0x00004ed9, 0x00004ed7, 0x00004ecd, 0x00004ed2, 0x00004ed3, 0x00004ed0,
+ 0x00004ed1
+};
+
+static const INT iccDelta_Offset = 7;
+static const INT iccDelta_MaxVal = 14;
+/* PS Stereo Huffmantable: iccDeltaFreq */
+static const UINT iccDeltaFreq_Length[] =
+{
+ 14, 14, 12, 10, 7, 5, 3, 1, 2, 4,
+ 6, 8, 9, 11, 13
+};
+static const UINT iccDeltaFreq_Code[] =
+{
+ 0x00003fff, 0x00003ffe, 0x00000ffe, 0x000003fe, 0x0000007e, 0x0000001e, 0x00000006, 0000000000, 0x00000002, 0x0000000e,
+ 0x0000003e, 0x000000fe, 0x000001fe, 0x000007fe, 0x00001ffe
+};
+
+/* PS Stereo Huffmantable: iccDeltaTime */
+static const UINT iccDeltaTime_Length[] =
+{
+ 14, 13, 11, 9, 7, 5, 3, 1, 2, 4,
+ 6, 8, 10, 12, 14
+};
+static const UINT iccDeltaTime_Code[] =
+{
+ 0x00003ffe, 0x00001ffe, 0x000007fe, 0x000001fe, 0x0000007e, 0x0000001e, 0x00000006, 0000000000, 0x00000002, 0x0000000e,
+ 0x0000003e, 0x000000fe, 0x000003fe, 0x00000ffe, 0x00003fff
+};
+
+
+
+static const INT ipdDelta_Offset = 0;
+static const INT ipdDelta_MaxVal = 7;
+/* PS Stereo Huffmantable: ipdDeltaFreq */
+static const UINT ipdDeltaFreq_Length[] =
+{
+ 1, 3, 4, 4, 4, 4, 4, 4
+};
+static const UINT ipdDeltaFreq_Code[] =
+{
+ 0x00000001, 0000000000, 0x00000006, 0x00000004, 0x00000002, 0x00000003, 0x00000005, 0x00000007
+};
+
+/* PS Stereo Huffmantable: ipdDeltaTime */
+static const UINT ipdDeltaTime_Length[] =
+{
+ 1, 3, 4, 5, 5, 4, 4, 3
+};
+static const UINT ipdDeltaTime_Code[] =
+{
+ 0x00000001, 0x00000002, 0x00000002, 0x00000003, 0x00000002, 0000000000, 0x00000003, 0x00000003
+};
+
+
+static const INT opdDelta_Offset = 0;
+static const INT opdDelta_MaxVal = 7;
+/* PS Stereo Huffmantable: opdDeltaFreq */
+static const UINT opdDeltaFreq_Length[] =
+{
+ 1, 3, 4, 4, 5, 5, 4, 3
+};
+static const UINT opdDeltaFreq_Code[] =
+{
+ 0x00000001, 0x00000001, 0x00000006, 0x00000004, 0x0000000f, 0x0000000e, 0x00000005, 0000000000,
+};
+
+/* PS Stereo Huffmantable: opdDeltaTime */
+static const UINT opdDeltaTime_Length[] =
+{
+ 1, 3, 4, 5, 5, 4, 4, 3
+};
+static const UINT opdDeltaTime_Code[] =
+{
+ 0x00000001, 0x00000002, 0x00000001, 0x00000007, 0x00000006, 0000000000, 0x00000002, 0x00000003
+};
+
+static const INT psBands[] =
+{
+ PS_BANDS_COARSE,
+ PS_BANDS_MID
+};
+
+static INT getNoBands(PS_RESOLUTION mode)
+{
+ if(mode>=6)
+ return 0;
+
+ if(mode>=3)
+ mode = (PS_RESOLUTION)(mode-3);
+
+ return psBands[mode];
+}
+
+static INT getIIDRes(INT iidMode)
+{
+ if(iidMode<3)
+ return PS_IID_RES_COARSE;
+ else
+ return PS_IID_RES_FINE;
+}
+
+static INT
+encodeDeltaFreq(HANDLE_FDK_BITSTREAM hBitBuf,
+ const INT *val,
+ const INT nBands,
+ const UINT *codeTable,
+ const UINT *lengthTable,
+ const INT tableOffset,
+ const INT maxVal,
+ INT *error)
+{
+ INT bitCnt = 0;
+ INT lastVal = 0;
+ INT band;
+
+ for(band=0;band<nBands;band++) {
+ INT delta = (val[band] - lastVal) + tableOffset;
+ lastVal = val[band];
+ if( (delta>maxVal) || (delta<0) ) {
+ *error = 1;
+ delta = delta>0?maxVal:0;
+ }
+ bitCnt += FDKsbrEnc_WriteBits_ps(hBitBuf, codeTable[delta], lengthTable[delta]);
+ }
+
+ return bitCnt;
+}
+
+static INT
+encodeDeltaTime(HANDLE_FDK_BITSTREAM hBitBuf,
+ const INT *val,
+ const INT *valLast,
+ const INT nBands,
+ const UINT *codeTable,
+ const UINT *lengthTable,
+ const INT tableOffset,
+ const INT maxVal,
+ INT *error)
+{
+ INT bitCnt = 0;
+ INT band;
+
+ for(band=0;band<nBands;band++) {
+ INT delta = (val[band] - valLast[band]) + tableOffset;
+ if( (delta>maxVal) || (delta<0) ) {
+ *error = 1;
+ delta = delta>0?maxVal:0;
+ }
+ bitCnt += FDKsbrEnc_WriteBits_ps(hBitBuf, codeTable[delta], lengthTable[delta]);
+ }
+
+ return bitCnt;
+}
+
+INT FDKsbrEnc_EncodeIid(HANDLE_FDK_BITSTREAM hBitBuf,
+ const INT *iidVal,
+ const INT *iidValLast,
+ const INT nBands,
+ const PS_IID_RESOLUTION res,
+ const PS_DELTA mode,
+ INT *error)
+{
+ const UINT *codeTable;
+ const UINT *lengthTable;
+ INT bitCnt = 0;
+
+ bitCnt = 0;
+
+ switch(mode) {
+ case PS_DELTA_FREQ:
+ switch(res) {
+ case PS_IID_RES_COARSE:
+ codeTable = iidDeltaFreqCoarse_Code;
+ lengthTable = iidDeltaFreqCoarse_Length;
+ bitCnt += encodeDeltaFreq(hBitBuf, iidVal, nBands, codeTable,
+ lengthTable, iidDeltaCoarse_Offset,
+ iidDeltaCoarse_MaxVal, error);
+ break;
+ case PS_IID_RES_FINE:
+ codeTable = iidDeltaFreqFine_Code;
+ lengthTable = iidDeltaFreqFine_Length;
+ bitCnt += encodeDeltaFreq(hBitBuf, iidVal, nBands, codeTable,
+ lengthTable, iidDeltaFine_Offset,
+ iidDeltaFine_MaxVal, error);
+ break;
+ default:
+ *error = 1;
+ }
+ break;
+
+ case PS_DELTA_TIME:
+ switch(res) {
+ case PS_IID_RES_COARSE:
+ codeTable = iidDeltaTimeCoarse_Code;
+ lengthTable = iidDeltaTimeCoarse_Length;
+ bitCnt += encodeDeltaTime(hBitBuf, iidVal, iidValLast, nBands, codeTable,
+ lengthTable, iidDeltaCoarse_Offset,
+ iidDeltaCoarse_MaxVal, error);
+ break;
+ case PS_IID_RES_FINE:
+ codeTable = iidDeltaTimeFine_Code;
+ lengthTable = iidDeltaTimeFine_Length;
+ bitCnt += encodeDeltaTime(hBitBuf, iidVal, iidValLast, nBands, codeTable,
+ lengthTable, iidDeltaFine_Offset,
+ iidDeltaFine_MaxVal, error);
+ break;
+ default:
+ *error = 1;
+ }
+ break;
+
+ default:
+ *error = 1;
+ }
+
+ return bitCnt;
+}
+
+
+INT FDKsbrEnc_EncodeIcc(HANDLE_FDK_BITSTREAM hBitBuf,
+ const INT *iccVal,
+ const INT *iccValLast,
+ const INT nBands,
+ const PS_DELTA mode,
+ INT *error)
+{
+ const UINT *codeTable;
+ const UINT *lengthTable;
+ INT bitCnt = 0;
+
+ switch(mode) {
+ case PS_DELTA_FREQ:
+ codeTable = iccDeltaFreq_Code;
+ lengthTable = iccDeltaFreq_Length;
+ bitCnt += encodeDeltaFreq(hBitBuf, iccVal, nBands, codeTable,
+ lengthTable, iccDelta_Offset, iccDelta_MaxVal, error);
+ break;
+
+ case PS_DELTA_TIME:
+ codeTable = iccDeltaTime_Code;
+ lengthTable = iccDeltaTime_Length;
+
+ bitCnt += encodeDeltaTime(hBitBuf, iccVal, iccValLast, nBands, codeTable,
+ lengthTable, iccDelta_Offset, iccDelta_MaxVal, error);
+ break;
+
+ default:
+ *error = 1;
+ }
+
+ return bitCnt;
+}
+
+INT FDKsbrEnc_EncodeIpd(HANDLE_FDK_BITSTREAM hBitBuf,
+ const INT *ipdVal,
+ const INT *ipdValLast,
+ const INT nBands,
+ const PS_DELTA mode,
+ INT *error)
+{
+ const UINT *codeTable;
+ const UINT *lengthTable;
+ INT bitCnt = 0;
+
+ switch(mode) {
+ case PS_DELTA_FREQ:
+ codeTable = ipdDeltaFreq_Code;
+ lengthTable = ipdDeltaFreq_Length;
+ bitCnt += encodeDeltaFreq(hBitBuf, ipdVal, nBands, codeTable,
+ lengthTable, ipdDelta_Offset, ipdDelta_MaxVal, error);
+ break;
+
+ case PS_DELTA_TIME:
+ codeTable = ipdDeltaTime_Code;
+ lengthTable = ipdDeltaTime_Length;
+
+ bitCnt += encodeDeltaTime(hBitBuf, ipdVal, ipdValLast, nBands, codeTable,
+ lengthTable, ipdDelta_Offset, ipdDelta_MaxVal, error);
+ break;
+
+ default:
+ *error = 1;
+ }
+
+ return bitCnt;
+}
+
+INT FDKsbrEnc_EncodeOpd(HANDLE_FDK_BITSTREAM hBitBuf,
+ const INT *opdVal,
+ const INT *opdValLast,
+ const INT nBands,
+ const PS_DELTA mode,
+ INT *error)
+{
+ const UINT *codeTable;
+ const UINT *lengthTable;
+ INT bitCnt = 0;
+
+ switch(mode) {
+ case PS_DELTA_FREQ:
+ codeTable = opdDeltaFreq_Code;
+ lengthTable = opdDeltaFreq_Length;
+ bitCnt += encodeDeltaFreq(hBitBuf, opdVal, nBands, codeTable,
+ lengthTable, opdDelta_Offset, opdDelta_MaxVal, error);
+ break;
+
+ case PS_DELTA_TIME:
+ codeTable = opdDeltaTime_Code;
+ lengthTable = opdDeltaTime_Length;
+
+ bitCnt += encodeDeltaTime(hBitBuf, opdVal, opdValLast, nBands, codeTable,
+ lengthTable, opdDelta_Offset, opdDelta_MaxVal, error);
+ break;
+
+ default:
+ *error = 1;
+ }
+
+ return bitCnt;
+}
+
+static INT encodeIpdOpd(HANDLE_PS_OUT psOut,
+ HANDLE_FDK_BITSTREAM hBitBuf )
+{
+ INT bitCnt = 0;
+ INT error = 0;
+ INT env;
+
+ FDKsbrEnc_WriteBits_ps(hBitBuf, psOut->enableIpdOpd, 1);
+
+ if(psOut->enableIpdOpd==1) {
+ INT *ipdLast = psOut->ipdLast;
+ INT *opdLast = psOut->opdLast;
+
+ for(env=0; env<psOut->nEnvelopes; env++) {
+ bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, psOut->deltaIPD[env], 1);
+ bitCnt += FDKsbrEnc_EncodeIpd( hBitBuf,
+ psOut->ipd[env],
+ ipdLast,
+ getNoBands((PS_RESOLUTION)psOut->iidMode),
+ psOut->deltaIPD[env],
+ &error);
+
+ bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, psOut->deltaOPD[env], 1);
+ bitCnt += FDKsbrEnc_EncodeOpd( hBitBuf,
+ psOut->opd[env],
+ opdLast,
+ getNoBands((PS_RESOLUTION)psOut->iidMode),
+ psOut->deltaOPD[env],
+ &error );
+ }
+ /* reserved bit */
+ bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, 0, 1);
+ }
+
+
+ return bitCnt;
+}
+
+static INT getEnvIdx(const INT nEnvelopes, const INT frameClass)
+{
+ INT envIdx = 0;
+
+ switch(nEnvelopes) {
+ case 0:
+ envIdx = 0;
+ break;
+
+ case 1:
+ if (frameClass==0)
+ envIdx = 1;
+ else
+ envIdx = 0;
+ break;
+
+ case 2:
+ if (frameClass==0)
+ envIdx = 2;
+ else
+ envIdx = 1;
+ break;
+
+ case 3:
+ envIdx = 2;
+ break;
+
+ case 4:
+ envIdx = 3;
+ break;
+
+ default:
+ /* unsupported number of envelopes */
+ envIdx = 0;
+ }
+
+ return envIdx;
+}
+
+
+static INT encodePSExtension(const HANDLE_PS_OUT psOut,
+ HANDLE_FDK_BITSTREAM hBitBuf )
+{
+ INT bitCnt = 0;
+
+ if(psOut->enableIpdOpd==1) {
+ INT ipdOpdBits = 0;
+ INT extSize = (2 + encodeIpdOpd(psOut,NULL)+7)>>3;
+
+ if(extSize<15) {
+ bitCnt += FDKsbrEnc_WriteBits_ps(hBitBuf, extSize, 4);
+ }
+ else {
+ bitCnt += FDKsbrEnc_WriteBits_ps(hBitBuf, 15 , 4);
+ bitCnt += FDKsbrEnc_WriteBits_ps(hBitBuf, (extSize-15), 8);
+ }
+
+ /* write ipd opd data */
+ ipdOpdBits += FDKsbrEnc_WriteBits_ps(hBitBuf, PS_EXT_ID_V0, 2);
+ ipdOpdBits += encodeIpdOpd(psOut, hBitBuf );
+
+ /* byte align the ipd opd data */
+ if(ipdOpdBits%8)
+ ipdOpdBits += FDKsbrEnc_WriteBits_ps(hBitBuf, 0, (8-(ipdOpdBits%8)) );
+
+ bitCnt += ipdOpdBits;
+ }
+
+ return (bitCnt);
+}
+
+INT FDKsbrEnc_WritePSBitstream(const HANDLE_PS_OUT psOut,
+ HANDLE_FDK_BITSTREAM hBitBuf )
+{
+ INT psExtEnable = 0;
+ INT bitCnt = 0;
+ INT error = 0;
+ INT env;
+
+ if(psOut != NULL){
+
+ /* PS HEADER */
+ bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, psOut->enablePSHeader, 1);
+
+ if(psOut->enablePSHeader) {
+
+ bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, psOut->enableIID, 1);
+ if(psOut->enableIID) {
+ bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, psOut->iidMode, 3);
+ }
+ bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, psOut->enableICC, 1);
+ if(psOut->enableICC) {
+ bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, psOut->iccMode, 3);
+ }
+ if(psOut->enableIpdOpd) {
+ psExtEnable = 1;
+ }
+ bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, psExtEnable, 1);
+ }
+
+ /* Frame class, number of envelopes */
+ bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, psOut->frameClass, 1);
+ bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, getEnvIdx(psOut->nEnvelopes, psOut->frameClass), 2);
+
+ if(psOut->frameClass==1) {
+ for(env=0; env<psOut->nEnvelopes; env++) {
+ bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, psOut->frameBorder[env], 5);
+ }
+ }
+
+ if(psOut->enableIID==1) {
+ INT *iidLast = psOut->iidLast;
+ for(env=0; env<psOut->nEnvelopes; env++) {
+ bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, psOut->deltaIID[env], 1);
+ bitCnt += FDKsbrEnc_EncodeIid( hBitBuf,
+ psOut->iid[env],
+ iidLast,
+ getNoBands((PS_RESOLUTION)psOut->iidMode),
+ (PS_IID_RESOLUTION)getIIDRes(psOut->iidMode),
+ psOut->deltaIID[env],
+ &error );
+
+ iidLast = psOut->iid[env];
+ }
+ }
+
+ if(psOut->enableICC==1) {
+ INT *iccLast = psOut->iccLast;
+ for(env=0; env<psOut->nEnvelopes; env++) {
+ bitCnt += FDKsbrEnc_WriteBits_ps( hBitBuf, psOut->deltaICC[env], 1);
+ bitCnt += FDKsbrEnc_EncodeIcc( hBitBuf,
+ psOut->icc[env],
+ iccLast,
+ getNoBands((PS_RESOLUTION)psOut->iccMode),
+ psOut->deltaICC[env],
+ &error);
+
+ iccLast = psOut->icc[env];
+ }
+ }
+
+ if(psExtEnable!=0) {
+ bitCnt += encodePSExtension(psOut, hBitBuf);
+ }
+
+ } /* if(psOut != NULL) */
+
+ return bitCnt;
+}
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 13:22:48 +0000