/* -----------------------------------------------------------------------------

Software License for The Fraunhofer FDK AAC Codec Library for Android

© 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.

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

----------------------------------------------------------------------------- */

/**************************** SBR encoder library ******************************

   Author(s):   N. Rettelbach

   Description: Parametric Stereo bitstream encoder

*******************************************************************************/

#include "ps_bitenc.h"

#include "ps_main.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 INT getNoBands(const INT mode) {

  INT noBands = 0;

  switch (mode) {

    case 0:

    case 3: /* coarse */

      noBands = PS_BANDS_COARSE;

      break;

    case 1:

    case 4: /* mid */

      noBands = PS_BANDS_MID;

      break;

    case 2:

    case 5:  /* fine not supported */

    default: /* coarse as default */

      noBands = PS_BANDS_COARSE;

  }

  return noBands;

}

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(psOut->iidMode),

                                    psOut->deltaIPD[env], &error);

      bitCnt += FDKsbrEnc_WriteBits_ps(hBitBuf, psOut->deltaOPD[env], 1);

      bitCnt += FDKsbrEnc_EncodeOpd(hBitBuf, psOut->opd[env], opdLast,

                                    getNoBands(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(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(psOut->iccMode),

                                      psOut->deltaICC[env], &error);

        iccLast = psOut->icc[env];

      }

    }

    if (psExtEnable != 0) {

      bitCnt += encodePSExtension(psOut, hBitBuf);

    }

  } /* if(psOut != NULL) */

  return bitCnt;

}