VLCWriter.cpp 79.9 KB
Newer Older
1 2 3 4 5
/* The copyright in this software is being made available under the BSD
* License, included below. This software may be subject to other third party
* and contributor rights, including patent rights, and no such rights are
* granted under this license.
*
6
* Copyright (c) 2010-2019, ITU/ISO/IEC
7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
*  * Redistributions of source code must retain the above copyright notice,
*    this list of conditions and the following disclaimer.
*  * Redistributions in binary form must reproduce the above copyright notice,
*    this list of conditions and the following disclaimer in the documentation
*    and/or other materials provided with the distribution.
*  * Neither the name of the ITU/ISO/IEC nor the names of its contributors may
*    be used to endorse or promote products derived from this software without
*    specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. 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 OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/

/** \file     VLCWriter.cpp
 *  \brief    Writer for high level syntax
 */

#include "VLCWriter.h"
#include "SEIwrite.h"

#include "CommonLib/CommonDef.h"
#include "CommonLib/Unit.h"
#include "CommonLib/Picture.h" // th remove this
#include "CommonLib/dtrace_next.h"
#include "EncAdaptiveLoopFilter.h"
#include "CommonLib/AdaptiveLoopFilter.h"

//! \ingroup EncoderLib
//! \{

#if ENABLE_TRACING

void  VLCWriter::xWriteCodeTr (uint32_t value, uint32_t  length, const char *pSymbolName)
{
  xWriteCode (value,length);

  if( g_HLSTraceEnable )
  {
    if( length < 10 )
    {
      DTRACE( g_trace_ctx, D_HEADER, "%-50s u(%d)  : %d\n", pSymbolName, length, value );
    }
    else
    {
      DTRACE( g_trace_ctx, D_HEADER, "%-50s u(%d) : %d\n", pSymbolName, length, value );
    }
  }
}

void  VLCWriter::xWriteUvlcTr (uint32_t value, const char *pSymbolName)
{
  xWriteUvlc (value);
  if( g_HLSTraceEnable )
  {
    DTRACE( g_trace_ctx, D_HEADER, "%-50s ue(v) : %d\n", pSymbolName, value );
  }
}

void  VLCWriter::xWriteSvlcTr (int value, const char *pSymbolName)
{
  xWriteSvlc(value);
  if( g_HLSTraceEnable )
  {
    DTRACE( g_trace_ctx, D_HEADER, "%-50s se(v) : %d\n", pSymbolName, value );
  }
}

void  VLCWriter::xWriteFlagTr(uint32_t value, const char *pSymbolName)
{
  xWriteFlag(value);
  if( g_HLSTraceEnable )
  {
    DTRACE( g_trace_ctx, D_HEADER, "%-50s u(1)  : %d\n", pSymbolName, value );
  }
}

bool g_HLSTraceEnable = true;

#endif


void VLCWriter::xWriteCode     ( uint32_t uiCode, uint32_t uiLength )
{
  CHECK( uiLength == 0, "Code of lenght '0' not supported" );
  m_pcBitIf->write( uiCode, uiLength );
}

void VLCWriter::xWriteUvlc     ( uint32_t uiCode )
{
  uint32_t uiLength = 1;
  uint32_t uiTemp = ++uiCode;

  CHECK( !uiTemp, "Integer overflow" );

  while( 1 != uiTemp )
  {
    uiTemp >>= 1;
    uiLength += 2;
  }
  // Take care of cases where uiLength > 32
  m_pcBitIf->write( 0, uiLength >> 1);
  m_pcBitIf->write( uiCode, (uiLength+1) >> 1);
}

void VLCWriter::xWriteSvlc     ( int iCode )
{
  uint32_t uiCode = uint32_t( iCode <= 0 ? (-iCode)<<1 : (iCode<<1)-1);
  xWriteUvlc( uiCode );
}

void VLCWriter::xWriteFlag( uint32_t uiCode )
{
  m_pcBitIf->write( uiCode, 1 );
}

void VLCWriter::xWriteRbspTrailingBits()
{
  WRITE_FLAG( 1, "rbsp_stop_one_bit");
  int cnt = 0;
  while (m_pcBitIf->getNumBitsUntilByteAligned())
  {
    WRITE_FLAG( 0, "rbsp_alignment_zero_bit");
    cnt++;
  }
  CHECK(cnt>=8, "More than '8' alignment bytes read");
}

void AUDWriter::codeAUD(OutputBitstream& bs, const int pictureType)
{
#if ENABLE_TRACING
  xTraceAccessUnitDelimiter();
#endif

  CHECK(pictureType >= 3, "Invalid picture type");
  setBitstream(&bs);
  WRITE_CODE(pictureType, 3, "pic_type");
  xWriteRbspTrailingBits();
}

Hendry's avatar
Hendry committed
160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193
void HLSWriter::xCodeRefPicList(const ReferencePictureList* rpl, bool isLongTermPresent, uint32_t ltLsbBitsCount)
{
  WRITE_UVLC(rpl->getNumberOfShorttermPictures() + rpl->getNumberOfLongtermPictures(), "num_ref_entries[ listIdx ][ rplsIdx ]");
  uint32_t numRefPic = rpl->getNumberOfShorttermPictures() + rpl->getNumberOfLongtermPictures();
  int prevDelta = MAX_INT;
  int deltaValue = 0;
  bool firstSTRP = true;
  for (int ii = 0; ii < numRefPic; ii++)
  {
    if (rpl->getNumberOfLongtermPictures() > 0)
      WRITE_FLAG(!rpl->isRefPicLongterm(ii), "st_ref_pic_flag[ listIdx ][ rplsIdx ][ i ]");
    if (!rpl->isRefPicLongterm(ii))
    {
      if (firstSTRP)
      {
        firstSTRP = false;
        deltaValue = prevDelta = rpl->getRefPicIdentifier(ii);
      }
      else
      {
        deltaValue = rpl->getRefPicIdentifier(ii) - prevDelta;
        prevDelta = rpl->getRefPicIdentifier(ii);
      }
      unsigned int absDeltaValue = (deltaValue < 0) ? 0 - deltaValue : deltaValue;
      WRITE_UVLC(absDeltaValue, "abs_delta_poc_st[ listIdx ][ rplsIdx ][ i ]");
      if (absDeltaValue > 0)
        WRITE_FLAG((deltaValue < 0) ? 0 : 1, "strp_entry_sign_flag[ listIdx ][ rplsIdx ][ i ]");  //0  means negative delta POC : 1 means positive
    }
    else
    {
      WRITE_CODE(rpl->getRefPicIdentifier(ii), ltLsbBitsCount, "poc_lsb_lt[listIdx][rplsIdx][i]");
    }
  }
}
194 195 196 197 198 199 200 201 202 203 204 205 206 207

void HLSWriter::codePPS( const PPS* pcPPS )
{
#if ENABLE_TRACING
  xTracePPSHeader ();
#endif

  WRITE_UVLC( pcPPS->getPPSId(),                             "pps_pic_parameter_set_id" );
  WRITE_UVLC( pcPPS->getSPSId(),                             "pps_seq_parameter_set_id" );
  WRITE_FLAG( pcPPS->getOutputFlagPresentFlag() ? 1 : 0,     "output_flag_present_flag" );
  WRITE_CODE( pcPPS->getNumExtraSliceHeaderBits(), 3,        "num_extra_slice_header_bits");
  WRITE_FLAG( pcPPS->getCabacInitPresentFlag() ? 1 : 0,   "cabac_init_present_flag" );
  WRITE_UVLC( pcPPS->getNumRefIdxL0DefaultActive()-1,     "num_ref_idx_l0_default_active_minus1");
  WRITE_UVLC( pcPPS->getNumRefIdxL1DefaultActive()-1,     "num_ref_idx_l1_default_active_minus1");
Hendry's avatar
Hendry committed
208
  WRITE_FLAG(pcPPS->getRpl1IdxPresentFlag() ? 1 : 0, "rpl1IdxPresentFlag");
209 210 211

  WRITE_SVLC( pcPPS->getPicInitQPMinus26(),                  "init_qp_minus26");
  WRITE_FLAG( pcPPS->getConstrainedIntraPred() ? 1 : 0,      "constrained_intra_pred_flag" );
212 213
  WRITE_FLAG( pcPPS->getUseTransformSkip() ? 1 : 0,  "transform_skip_enabled_flag" );
  WRITE_FLAG( pcPPS->getUseDQP() ? 1 : 0, "cu_qp_delta_enabled_flag" );
214 215
  if ( pcPPS->getUseDQP() )
  {
216
    WRITE_UVLC( pcPPS->getCuQpDeltaSubdiv(), "cu_qp_delta_subdiv" );
217 218 219 220
  }

  WRITE_SVLC( pcPPS->getQpOffset(COMPONENT_Cb), "pps_cb_qp_offset" );
  WRITE_SVLC( pcPPS->getQpOffset(COMPONENT_Cr), "pps_cr_qp_offset" );
221
  WRITE_SVLC( pcPPS->getQpOffset(JOINT_CbCr),   "pps_cb_cr_qp_offset" );
222 223 224 225 226 227

  WRITE_FLAG( pcPPS->getSliceChromaQpFlag() ? 1 : 0,          "pps_slice_chroma_qp_offsets_present_flag" );

  WRITE_FLAG( pcPPS->getUseWP() ? 1 : 0,  "weighted_pred_flag" );   // Use of Weighting Prediction (P_SLICE)
  WRITE_FLAG( pcPPS->getWPBiPred() ? 1 : 0, "weighted_bipred_flag" );  // Use of Weighting Bi-Prediction (B_SLICE)
  WRITE_FLAG( pcPPS->getTransquantBypassEnabledFlag()  ? 1 : 0, "transquant_bypass_enabled_flag" );
Karsten Suehring's avatar
Karsten Suehring committed
228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291

  WRITE_FLAG( pcPPS->getSingleTileInPicFlag() ? 1 : 0, "single_tile_in_pic_flag" );
  if (!pcPPS->getSingleTileInPicFlag())
  {
    WRITE_FLAG( pcPPS->getUniformTileSpacingFlag() ? 1 : 0, "uniform_tile_spacing_flag" );
    if (pcPPS->getUniformTileSpacingFlag())
    {
      WRITE_UVLC( pcPPS->getTileColsWidthMinus1(),   "tile_cols_width_minus1" );
      WRITE_UVLC( pcPPS->getTileRowsHeightMinus1(),  "tile_rows_height_minus1" );
    }
    else
    {
      WRITE_UVLC( pcPPS->getNumTileColumnsMinus1(), "num_tile_columns_minus1" );
      WRITE_UVLC( pcPPS->getNumTileRowsMinus1(),    "num_tile_rows_minus1" );

      CHECK( ((pcPPS->getNumTileColumnsMinus1() + 1) * (pcPPS->getNumTileRowsMinus1() + 1)) < 2, "tile colums * rows must be > 1 when explicitly signalled.");

      for (int i = 0; i < pcPPS->getNumTileColumnsMinus1(); i++)
      {
        WRITE_UVLC( pcPPS->getTileColumnWidth(i) - 1, "tile_column_width_minus1" );
      }
      for (int i = 0; i < pcPPS->getNumTileRowsMinus1(); i++)
      {
        WRITE_UVLC( pcPPS->getTileRowHeight(i) - 1, "tile_row_height_minus1" );
      }
    }
    WRITE_FLAG( pcPPS->getBrickSplittingPresentFlag() ? 1 : 0, "brick_splitting_present_flag" );

    int numTilesInPic = pcPPS->getUniformTileSpacingFlag() ? 0 : (pcPPS->getNumTileColumnsMinus1() + 1) * (pcPPS->getNumTileRowsMinus1() + 1);

    for( int i = 0; pcPPS->getBrickSplittingPresentFlag()  &&  i < numTilesInPic; i++ )
    {
      WRITE_FLAG( pcPPS->getBrickSplitFlag(i) ? 1 : 0, "brick_split_flag [i]" );
      if( pcPPS->getBrickSplitFlag(i) )
      {
        WRITE_FLAG( pcPPS->getUniformBrickSpacingFlag(i) ? 1 : 0, "uniform_brick_spacing_flag [i]" );
        if( pcPPS->getUniformBrickSpacingFlag(i) )
          WRITE_UVLC( pcPPS->getBrickHeightMinus1(i), "brick_height_minus1" );
        else
        {
          WRITE_UVLC( pcPPS->getNumBrickRowsMinus1(i), "num_brick_rows_minus1 [i]" );
          for(int j = 0; j < pcPPS->getNumBrickRowsMinus1(i); j++ )
            WRITE_UVLC( pcPPS->getBrickRowHeightMinus1(i,j), "brick_row_height_minus1 [i][j]" );
        }
      }
    }

    WRITE_FLAG( pcPPS->getSingleBrickPerSliceFlag() ? 1 : 0, "single_brick_per_slice_flag" );
    if (!pcPPS->getSingleBrickPerSliceFlag())
    {
      WRITE_FLAG( pcPPS->getRectSliceFlag() ? 1 : 0, "rect_slice_flag" );
    }
    else
    {
      // make sure rect_slice_flag is set
      CHECK (pcPPS->getRectSliceFlag()!=true, "RectSliceFlag must be equal to 1 for single_brick_per_slice_flag equal to 1");
    }

    if (pcPPS->getRectSliceFlag() && !pcPPS->getSingleBrickPerSliceFlag())
    {
      WRITE_UVLC( pcPPS->getNumSlicesInPicMinus1(), "num_slices_in_pic_minus1" );
      int numSlicesInPic = pcPPS->getNumSlicesInPicMinus1() + 1;
      int numTilesInPic = (pcPPS->getNumTileColumnsMinus1() + 1) * (pcPPS->getNumTileRowsMinus1() + 1);
      int codeLength = (int)ceil(log2(numTilesInPic));
Philip Cowan's avatar
Philip Cowan committed
292
      int codeLength2 = codeLength;
Karsten Suehring's avatar
Karsten Suehring committed
293 294 295 296
      for (int i = 0; i < numSlicesInPic; ++i)
      {
        if (i > 0)
        {
297 298
          WRITE_CODE(pcPPS->getTopLeftBrickIdx(i), codeLength, "top_left_brick_idx ");
          codeLength2 = (int)ceil(log2((numTilesInPic - pcPPS->getTopLeftBrickIdx(i) < 2) ? 2 : numTilesInPic - pcPPS->getTopLeftBrickIdx(i)));
Karsten Suehring's avatar
Karsten Suehring committed
299
        }
300
        WRITE_CODE(pcPPS->getBottomRightBrickIdx(i) - pcPPS->getTopLeftBrickIdx(i), codeLength2, "bottom_right_brick_idx_delta");
Karsten Suehring's avatar
Karsten Suehring committed
301 302 303 304 305 306 307 308 309 310 311
      }
    }

    WRITE_FLAG( pcPPS->getLoopFilterAcrossBricksEnabledFlag() ? 1 : 0, "loop_filter_across_bricks_enabled_flag" );
    if (pcPPS->getLoopFilterAcrossBricksEnabledFlag())
    {
      WRITE_FLAG( pcPPS->getLoopFilterAcrossSlicesEnabledFlag() ? 1 : 0, "loop_filter_across_slices_enabled_flag" );
    }
  }
  else
  {
312 313
	// make sure single brick per slice is set by encoder such that the behaviour is same as for setting it to true
	CHECK(pcPPS->getSingleBrickPerSliceFlag() != true, "SingleBrickPerSliceFlag must be set to 1 when not present");
Karsten Suehring's avatar
Karsten Suehring committed
314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335
    // make sure rect_slice_flag is set
    CHECK (pcPPS->getRectSliceFlag()!=true, "RectSliceFlag must be equalt to 1 for single_tile_in_pic_flag equal to 1");
  }

  if (pcPPS->getRectSliceFlag())
  {
    WRITE_FLAG( pcPPS->getSignalledSliceIdFlag() ? 1 : 0, "signalled_slice_id_flag" );
    if (pcPPS->getSignalledSliceIdFlag())
    {
      WRITE_UVLC( pcPPS->getSignalledSliceIdLengthMinus1(), "signalled_slice_id_length_minus1" );
      int signalledTileGroupIdLength = pcPPS->getSignalledSliceIdLengthMinus1() + 1;
      int numTileGroupsInPic = pcPPS->getNumSlicesInPicMinus1() + 1;
      for (int i = 0; i < numTileGroupsInPic; ++i)
      {
        WRITE_CODE (pcPPS->getSliceId(i), signalledTileGroupIdLength, "slice_id" );
      }
    }
  }


  WRITE_FLAG( pcPPS->getEntropyCodingSyncEnabledFlag() ? 1 : 0, "entropy_coding_sync_enabled_flag" );

336 337 338 339 340 341 342 343 344 345 346
  WRITE_FLAG( pcPPS->getDeblockingFilterControlPresentFlag()?1 : 0,       "deblocking_filter_control_present_flag");
  if(pcPPS->getDeblockingFilterControlPresentFlag())
  {
    WRITE_FLAG( pcPPS->getDeblockingFilterOverrideEnabledFlag() ? 1 : 0,  "deblocking_filter_override_enabled_flag" );
    WRITE_FLAG( pcPPS->getPPSDeblockingFilterDisabledFlag() ? 1 : 0,      "pps_deblocking_filter_disabled_flag" );
    if(!pcPPS->getPPSDeblockingFilterDisabledFlag())
    {
      WRITE_SVLC( pcPPS->getDeblockingFilterBetaOffsetDiv2(),             "pps_beta_offset_div2" );
      WRITE_SVLC( pcPPS->getDeblockingFilterTcOffsetDiv2(),               "pps_tc_offset_div2" );
    }
  }
347 348 349 350 351

  WRITE_FLAG( pcPPS->getLoopFilterAcrossVirtualBoundariesDisabledFlag() ? 1 : 0,     "pps_loop_filter_across_virtual_boundaries_disabled_flag" );
  if( pcPPS->getLoopFilterAcrossVirtualBoundariesDisabledFlag() )
  {
    WRITE_CODE( pcPPS->getNumVerVirtualBoundaries(), 2,                              "pps_num_ver_virtual_boundaries");
352
    int numBits = (int)ceil(log2(pcPPS->pcv->lumaWidth) - 3);
353 354 355 356 357
    for( unsigned i = 0; i < pcPPS->getNumVerVirtualBoundaries(); i++ )
    {
      WRITE_CODE( pcPPS->getVirtualBoundariesPosX( i ) >> 3, numBits,                "pps_virtual_boundaries_pos_x" );
    }
    WRITE_CODE( pcPPS->getNumHorVirtualBoundaries(), 2,                              "pps_num_hor_virtual_boundaries");
358
    numBits = (int)ceil(log2(pcPPS->pcv->lumaHeight) - 3);
359 360 361 362 363 364
    for( unsigned i = 0; i < pcPPS->getNumHorVirtualBoundaries(); i++ )
    {
      WRITE_CODE( pcPPS->getVirtualBoundariesPosY( i ) >> 3, numBits,                "pps_virtual_boundaries_pos_y" );
    }
  }

365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423
  WRITE_FLAG( pcPPS->getScalingListPresentFlag() ? 1 : 0,                          "pps_scaling_list_data_present_flag" );
  if( pcPPS->getScalingListPresentFlag() )
  {
    codeScalingList( pcPPS->getScalingList() );
  }
  WRITE_UVLC( pcPPS->getLog2ParallelMergeLevelMinus2(), "log2_parallel_merge_level_minus2");
  WRITE_FLAG( pcPPS->getSliceHeaderExtensionPresentFlag() ? 1 : 0, "slice_segment_header_extension_present_flag");

  bool pps_extension_present_flag=false;
  bool pps_extension_flags[NUM_PPS_EXTENSION_FLAGS]={false};

  pps_extension_flags[PPS_EXT__REXT] = pcPPS->getPpsRangeExtension().settingsDifferFromDefaults(pcPPS->getUseTransformSkip());

  // Other PPS extension flags checked here.

  for(int i=0; i<NUM_PPS_EXTENSION_FLAGS; i++)
  {
    pps_extension_present_flag|=pps_extension_flags[i];
  }

  WRITE_FLAG( (pps_extension_present_flag?1:0), "pps_extension_present_flag" );

  if (pps_extension_present_flag)
  {
#if ENABLE_TRACING /*|| RExt__DECODER_DEBUG_BIT_STATISTICS*/
    static const char *syntaxStrings[]={ "pps_range_extension_flag",
      "pps_multilayer_extension_flag",
      "pps_extension_6bits[0]",
      "pps_extension_6bits[1]",
      "pps_extension_6bits[2]",
      "pps_extension_6bits[3]",
      "pps_extension_6bits[4]",
      "pps_extension_6bits[5]" };
#endif

    for(int i=0; i<NUM_PPS_EXTENSION_FLAGS; i++)
    {
      WRITE_FLAG( pps_extension_flags[i]?1:0, syntaxStrings[i] );
    }

    for(int i=0; i<NUM_PPS_EXTENSION_FLAGS; i++) // loop used so that the order is determined by the enum.
    {
      if (pps_extension_flags[i])
      {
        switch (PPSExtensionFlagIndex(i))
        {
        case PPS_EXT__REXT:
        {
          const PPSRExt &ppsRangeExtension = pcPPS->getPpsRangeExtension();
          if (pcPPS->getUseTransformSkip())
          {
            WRITE_UVLC( ppsRangeExtension.getLog2MaxTransformSkipBlockSize()-2,            "log2_max_transform_skip_block_size_minus2");
          }

          WRITE_FLAG((ppsRangeExtension.getCrossComponentPredictionEnabledFlag() ? 1 : 0), "cross_component_prediction_enabled_flag" );

          WRITE_FLAG(uint32_t(ppsRangeExtension.getChromaQpOffsetListEnabledFlag()),           "chroma_qp_offset_list_enabled_flag" );
          if (ppsRangeExtension.getChromaQpOffsetListEnabledFlag())
          {
424
            WRITE_UVLC(ppsRangeExtension.getCuChromaQpOffsetSubdiv(),                      "cu_chroma_qp_offset_subdiv");
425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447
            WRITE_UVLC(ppsRangeExtension.getChromaQpOffsetListLen() - 1,                   "chroma_qp_offset_list_len_minus1");
            /* skip zero index */
            for (int cuChromaQpOffsetIdx = 0; cuChromaQpOffsetIdx < ppsRangeExtension.getChromaQpOffsetListLen(); cuChromaQpOffsetIdx++)
            {
              WRITE_SVLC(ppsRangeExtension.getChromaQpOffsetListEntry(cuChromaQpOffsetIdx+1).u.comp.CbOffset,     "cb_qp_offset_list[i]");
              WRITE_SVLC(ppsRangeExtension.getChromaQpOffsetListEntry(cuChromaQpOffsetIdx+1).u.comp.CrOffset,     "cr_qp_offset_list[i]");
            }
          }

          WRITE_UVLC( ppsRangeExtension.getLog2SaoOffsetScale(CHANNEL_TYPE_LUMA),           "log2_sao_offset_scale_luma"   );
          WRITE_UVLC( ppsRangeExtension.getLog2SaoOffsetScale(CHANNEL_TYPE_CHROMA),         "log2_sao_offset_scale_chroma" );
        }
        break;
        default:
          CHECK(pps_extension_flags[i]==false, "Unknown PPS extension signalled"); // Should never get here with an active PPS extension flag.
          break;
        } // switch
      } // if flag present
    } // loop over PPS flags
  } // pps_extension_present_flag is non-zero
  xWriteRbspTrailingBits();
}

448
void HLSWriter::codeAPS( APS* pcAPS )
Hendry's avatar
Hendry committed
449
{
Hendry's avatar
Hendry committed
450 451 452 453
#if ENABLE_TRACING
  xTraceAPSHeader();
#endif

454 455 456 457 458 459 460 461 462 463 464 465 466 467
  WRITE_CODE(pcAPS->getAPSId(), 5, "adaptation_parameter_set_id");
  WRITE_CODE(pcAPS->getAPSType(), 3, "aps_params_type");
  

  if (pcAPS->getAPSType() == ALF_APS)
  {
    codeAlfAps(pcAPS);
  }
  else if (pcAPS->getAPSType() == LMCS_APS)
  {
    codeLmcsAps (pcAPS);
  }
  WRITE_FLAG(0, "aps_extension_flag");   //Implementation when this flag is equal to 1 should be added when it is needed. Currently in the spec we don't have case when this flag is equal to 1
  xWriteRbspTrailingBits();
Hendry's avatar
Hendry committed
468
}
469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488

void HLSWriter::codeAlfAps( APS* pcAPS )
{
  AlfSliceParam param = pcAPS->getAlfAPSParam();

  WRITE_FLAG(param.newFilterFlag[CHANNEL_TYPE_LUMA], "alf_luma_new_filter");
  WRITE_FLAG(param.newFilterFlag[CHANNEL_TYPE_CHROMA], "alf_chroma_new_filter");

  if (param.newFilterFlag[CHANNEL_TYPE_LUMA])
  {
    WRITE_FLAG(param.nonLinearFlag[CHANNEL_TYPE_LUMA], "alf_luma_clip");

    xWriteTruncBinCode(param.numLumaFilters - 1, MAX_NUM_ALF_CLASSES);  //number_of_filters_minus1
    if (param.numLumaFilters > 1)
    {
      for (int i = 0; i < MAX_NUM_ALF_CLASSES; i++)
      {
        xWriteTruncBinCode((uint32_t)param.filterCoeffDeltaIdx[i], param.numLumaFilters);  //filter_coeff_delta[i]
      }
    }
489
#if !JVET_O0669_REMOVE_ALF_COEFF_PRED
490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506
    WRITE_FLAG(param.fixedFilterSetIndex > 0 ? 1 : 0, "fixed_filter_set_flag");
    if (param.fixedFilterSetIndex > 0)
    {
      xWriteTruncBinCode(param.fixedFilterSetIndex - 1, NUM_FIXED_FILTER_SETS);
      WRITE_FLAG(param.fixedFilterPattern, "fixed_filter_flag_pattern");
      for (int classIdx = 0; classIdx < MAX_NUM_ALF_CLASSES; classIdx++)
      {
        if (param.fixedFilterPattern > 0)
        {
          WRITE_FLAG(param.fixedFilterIdx[classIdx], "fixed_filter_flag");
        }
        else
        {
          CHECK(param.fixedFilterIdx[classIdx] != 1, "Disabled fixed filter");
        }
      }
    }
507
#endif
508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538
    alfFilter(param, false);

  }
  if (param.newFilterFlag[CHANNEL_TYPE_CHROMA])
  {
    WRITE_FLAG(param.nonLinearFlag[CHANNEL_TYPE_CHROMA], "alf_chroma_clip");
      alfFilter(param, true);
  }
}

void HLSWriter::codeLmcsAps( APS* pcAPS )
{
  SliceReshapeInfo param = pcAPS->getReshaperAPSInfo();
  WRITE_UVLC(param.reshaperModelMinBinIdx, "lmcs_min_bin_idx");
  WRITE_UVLC(PIC_CODE_CW_BINS - 1 - param.reshaperModelMaxBinIdx, "lmcs_delta_max_bin_idx");
  assert(param.maxNbitsNeededDeltaCW > 0);
  WRITE_UVLC(param.maxNbitsNeededDeltaCW - 1, "lmcs_delta_cw_prec_minus1");

  for (int i = param.reshaperModelMinBinIdx; i <= param.reshaperModelMaxBinIdx; i++)
  {
    int deltaCW = param.reshaperModelBinCWDelta[i];
    int signCW = (deltaCW < 0) ? 1 : 0;
    int absCW = (deltaCW < 0) ? (-deltaCW) : deltaCW;
    WRITE_CODE(absCW, param.maxNbitsNeededDeltaCW, "lmcs_delta_abs_cw[ i ]");
    if (absCW > 0)
    {
      WRITE_FLAG(signCW, "lmcs_delta_sign_cw_flag[ i ]");
    }
  }
}

539 540 541 542 543
void HLSWriter::codeVUI( const VUI *pcVUI, const SPS* pcSPS )
{
#if ENABLE_TRACING
  DTRACE( g_trace_ctx, D_HEADER, "----------- vui_parameters -----------\n");
#endif
Virginie Drugeon's avatar
Virginie Drugeon committed
544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587


  WRITE_FLAG(pcVUI->getAspectRatioInfoPresentFlag(),            "aspect_ratio_info_present_flag");
  if (pcVUI->getAspectRatioInfoPresentFlag())
  {
    WRITE_CODE(pcVUI->getAspectRatioIdc(), 8,                   "aspect_ratio_idc" );
    if (pcVUI->getAspectRatioIdc() == 255)
    {
      WRITE_CODE(pcVUI->getSarWidth(), 16,                      "sar_width");
      WRITE_CODE(pcVUI->getSarHeight(), 16,                     "sar_height");
    }
  }
  WRITE_FLAG(pcVUI->getColourDescriptionPresentFlag(),        "colour_description_present_flag");
  if (pcVUI->getColourDescriptionPresentFlag())
  {
    WRITE_CODE(pcVUI->getColourPrimaries(), 8,                "colour_primaries");
    WRITE_CODE(pcVUI->getTransferCharacteristics(), 8,        "transfer_characteristics");
    WRITE_CODE(pcVUI->getMatrixCoefficients(), 8,             "matrix_coeffs");
  }
  WRITE_FLAG(pcVUI->getFieldSeqFlag(),                          "field_seq_flag");
  WRITE_FLAG(pcVUI->getChromaLocInfoPresentFlag(),              "chroma_loc_info_present_flag");
  if (pcVUI->getChromaLocInfoPresentFlag())
  {
    if(pcVUI->getFieldSeqFlag())
    {
      WRITE_UVLC(pcVUI->getChromaSampleLocTypeTopField(),         "chroma_sample_loc_type_top_field");
      WRITE_UVLC(pcVUI->getChromaSampleLocTypeBottomField(),      "chroma_sample_loc_type_bottom_field");
    }
    else
    {
      WRITE_UVLC(pcVUI->getChromaSampleLocType(),         "chroma_sample_loc_type");
    }
  }
  WRITE_FLAG(pcVUI->getOverscanInfoPresentFlag(),               "overscan_info_present_flag");
  if (pcVUI->getOverscanInfoPresentFlag())
  {
    WRITE_FLAG(pcVUI->getOverscanAppropriateFlag(),             "overscan_appropriate_flag");
  }
  WRITE_FLAG(pcVUI->getVideoSignalTypePresentFlag(),            "video_signal_type_present_flag");
  if (pcVUI->getVideoSignalTypePresentFlag())
  {
    WRITE_FLAG(pcVUI->getVideoFullRangeFlag(),                  "video_full_range_flag");
  }

588 589
}

590
void HLSWriter::codeHrdParameters( const HRDParameters *hrd, bool commonInfPresentFlag, uint32_t maxNumSubLayersMinus1 )
591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660
{
  if( commonInfPresentFlag )
  {
    WRITE_FLAG( hrd->getNalHrdParametersPresentFlag() ? 1 : 0 ,  "nal_hrd_parameters_present_flag" );
    WRITE_FLAG( hrd->getVclHrdParametersPresentFlag() ? 1 : 0 ,  "vcl_hrd_parameters_present_flag" );
    if( hrd->getNalHrdParametersPresentFlag() || hrd->getVclHrdParametersPresentFlag() )
    {
      WRITE_FLAG( hrd->getSubPicCpbParamsPresentFlag() ? 1 : 0,  "sub_pic_hrd_params_present_flag" );
      if( hrd->getSubPicCpbParamsPresentFlag() )
      {
        WRITE_CODE( hrd->getTickDivisorMinus2(), 8,              "tick_divisor_minus2" );
        WRITE_CODE( hrd->getDuCpbRemovalDelayLengthMinus1(), 5,  "du_cpb_removal_delay_increment_length_minus1" );
        WRITE_FLAG( hrd->getSubPicCpbParamsInPicTimingSEIFlag() ? 1 : 0, "sub_pic_cpb_params_in_pic_timing_sei_flag" );
        WRITE_CODE( hrd->getDpbOutputDelayDuLengthMinus1(), 5,   "dpb_output_delay_du_length_minus1"  );
      }
      WRITE_CODE( hrd->getBitRateScale(), 4,                     "bit_rate_scale" );
      WRITE_CODE( hrd->getCpbSizeScale(), 4,                     "cpb_size_scale" );
      if( hrd->getSubPicCpbParamsPresentFlag() )
      {
        WRITE_CODE( hrd->getDuCpbSizeScale(), 4,                "du_cpb_size_scale" );
      }
      WRITE_CODE( hrd->getInitialCpbRemovalDelayLengthMinus1(), 5, "initial_cpb_removal_delay_length_minus1" );
      WRITE_CODE( hrd->getCpbRemovalDelayLengthMinus1(),        5, "au_cpb_removal_delay_length_minus1" );
      WRITE_CODE( hrd->getDpbOutputDelayLengthMinus1(),         5, "dpb_output_delay_length_minus1" );
    }
  }
  int i, j, nalOrVcl;
  for( i = 0; i <= maxNumSubLayersMinus1; i ++ )
  {
    WRITE_FLAG( hrd->getFixedPicRateFlag( i ) ? 1 : 0,          "fixed_pic_rate_general_flag");
    bool fixedPixRateWithinCvsFlag = true;
    if( !hrd->getFixedPicRateFlag( i ) )
    {
      fixedPixRateWithinCvsFlag = hrd->getFixedPicRateWithinCvsFlag( i );
      WRITE_FLAG( hrd->getFixedPicRateWithinCvsFlag( i ) ? 1 : 0, "fixed_pic_rate_within_cvs_flag");
    }
    if( fixedPixRateWithinCvsFlag )
    {
      WRITE_UVLC( hrd->getPicDurationInTcMinus1( i ),           "elemental_duration_in_tc_minus1");
    }
    else
    {
      WRITE_FLAG( hrd->getLowDelayHrdFlag( i ) ? 1 : 0,           "low_delay_hrd_flag");
    }
    if (!hrd->getLowDelayHrdFlag( i ))
    {
      WRITE_UVLC( hrd->getCpbCntMinus1( i ),                      "cpb_cnt_minus1");
    }

    for( nalOrVcl = 0; nalOrVcl < 2; nalOrVcl ++ )
    {
      if( ( ( nalOrVcl == 0 ) && ( hrd->getNalHrdParametersPresentFlag() ) ) ||
          ( ( nalOrVcl == 1 ) && ( hrd->getVclHrdParametersPresentFlag() ) ) )
      {
        for( j = 0; j <= ( hrd->getCpbCntMinus1( i ) ); j ++ )
        {
          WRITE_UVLC( hrd->getBitRateValueMinus1( i, j, nalOrVcl ), "bit_rate_value_minus1");
          WRITE_UVLC( hrd->getCpbSizeValueMinus1( i, j, nalOrVcl ), "cpb_size_value_minus1");
          if( hrd->getSubPicCpbParamsPresentFlag() )
          {
            WRITE_UVLC( hrd->getDuCpbSizeValueMinus1( i, j, nalOrVcl ), "cpb_size_du_value_minus1");
            WRITE_UVLC( hrd->getDuBitRateValueMinus1( i, j, nalOrVcl ), "bit_rate_du_value_minus1");
          }
          WRITE_FLAG( hrd->getCbrFlag( i, j, nalOrVcl ) ? 1 : 0, "cbr_flag");
        }
      }
    }
  }
}

Taoran Lu's avatar
Taoran Lu committed
661

662 663
void HLSWriter::codeSPS( const SPS* pcSPS )
{
664 665 666
#if ENABLE_TRACING
  xTraceSPSHeader ();
#endif
667
  WRITE_CODE( pcSPS->getDecodingParameterSetId (), 4,       "sps_decoding_parameter_set_id" );
668 669 670 671 672 673 674 675
  CHECK(pcSPS->getMaxTLayers() == 0, "Maximum number of temporal sub-layers is '0'");

  WRITE_CODE(pcSPS->getMaxTLayers() - 1, 3, "sps_max_sub_layers_minus1");
  WRITE_CODE(0,                          5, "sps_reserved_zero_5bits");

  codeProfileTierLevel( pcSPS->getProfileTierLevel(), pcSPS->getMaxTLayers() - 1 );

  WRITE_UVLC(pcSPS->getSPSId (), "sps_seq_parameter_set_id");
676

677
  WRITE_UVLC( int(pcSPS->getChromaFormatIdc ()),    "chroma_format_idc" );
678 679

  const ChromaFormat format                = pcSPS->getChromaFormatIdc();
680 681 682 683 684 685 686 687 688
  if( format == CHROMA_444 )
  {
    WRITE_FLAG( 0,                                  "separate_colour_plane_flag");
  }

  WRITE_UVLC( pcSPS->getPicWidthInLumaSamples (),   "pic_width_in_luma_samples" );
  WRITE_UVLC( pcSPS->getPicHeightInLumaSamples(),   "pic_height_in_luma_samples" );
  Window conf = pcSPS->getConformanceWindow();

689
  // KJS: not removing yet
690 691 692 693 694 695 696 697 698 699
  WRITE_FLAG( conf.getWindowEnabledFlag(),          "conformance_window_flag" );
  if (conf.getWindowEnabledFlag())
  {
    WRITE_UVLC( conf.getWindowLeftOffset()   / SPS::getWinUnitX(pcSPS->getChromaFormatIdc() ), "conf_win_left_offset" );
    WRITE_UVLC( conf.getWindowRightOffset()  / SPS::getWinUnitX(pcSPS->getChromaFormatIdc() ), "conf_win_right_offset" );
    WRITE_UVLC( conf.getWindowTopOffset()    / SPS::getWinUnitY(pcSPS->getChromaFormatIdc() ), "conf_win_top_offset" );
    WRITE_UVLC( conf.getWindowBottomOffset() / SPS::getWinUnitY(pcSPS->getChromaFormatIdc() ), "conf_win_bottom_offset" );
  }

  WRITE_UVLC( pcSPS->getBitDepth(CHANNEL_TYPE_LUMA) - 8,                      "bit_depth_luma_minus8" );
700

701
  const bool         chromaEnabled         = isChromaEnabled(format);
702 703 704
  WRITE_UVLC( chromaEnabled ? (pcSPS->getBitDepth(CHANNEL_TYPE_CHROMA) - 8):0,  "bit_depth_chroma_minus8" );

  WRITE_UVLC( pcSPS->getBitsForPOC()-4,                 "log2_max_pic_order_cnt_lsb_minus4" );
Kashyap Kammachi Sreedhar's avatar
Kashyap Kammachi Sreedhar committed
705
  WRITE_FLAG( pcSPS->getIDRRefParamListPresent(),                 "sps_idr_rpl_present_flag" );
706
  // KJS: Marakech decision: sub-layers added back
707 708 709 710 711 712 713 714 715 716 717 718 719
  const bool subLayerOrderingInfoPresentFlag = 1;
  WRITE_FLAG(subLayerOrderingInfoPresentFlag,       "sps_sub_layer_ordering_info_present_flag");
  for(uint32_t i=0; i <= pcSPS->getMaxTLayers()-1; i++)
  {
    WRITE_UVLC( pcSPS->getMaxDecPicBuffering(i) - 1,       "sps_max_dec_pic_buffering_minus1[i]" );
    WRITE_UVLC( pcSPS->getNumReorderPics(i),               "sps_max_num_reorder_pics[i]" );
    WRITE_UVLC( pcSPS->getMaxLatencyIncreasePlus1(i),      "sps_max_latency_increase_plus1[i]" );
    if (!subLayerOrderingInfoPresentFlag)
    {
      break;
    }
  }
  CHECK( pcSPS->getMaxCUWidth() != pcSPS->getMaxCUHeight(),                          "Rectangular CTUs not supported" );
Hendry's avatar
Hendry committed
720 721 722 723 724 725 726
  WRITE_FLAG(pcSPS->getLongTermRefsPresent() ? 1 : 0, "long_term_ref_pics_flag");
  WRITE_FLAG(pcSPS->getRPL1CopyFromRPL0Flag() ? 1 : 0, "rpl1_copy_from_rpl0_flag");

  const RPLList* rplList0 = pcSPS->getRPLList0();
  const RPLList* rplList1 = pcSPS->getRPLList1();

  //Write candidate for List0
727
  uint32_t numberOfRPL = pcSPS->getNumRPL0();
Hendry's avatar
Hendry committed
728 729 730 731 732 733 734 735 736 737
  WRITE_UVLC(numberOfRPL, "num_ref_pic_lists_in_sps[0]");
  for (int ii = 0; ii < numberOfRPL; ii++)
  {
    const ReferencePictureList* rpl = rplList0->getReferencePictureList(ii);
    xCodeRefPicList(rpl, pcSPS->getLongTermRefsPresent(), pcSPS->getBitsForPOC());
  }

  //Write candidate for List1
  if (!pcSPS->getRPL1CopyFromRPL0Flag())
  {
738
    numberOfRPL = pcSPS->getNumRPL1();
Hendry's avatar
Hendry committed
739 740 741 742 743 744 745
    WRITE_UVLC(numberOfRPL, "num_ref_pic_lists_in_sps[1]");
    for (int ii = 0; ii < numberOfRPL; ii++)
    {
      const ReferencePictureList* rpl = rplList1->getReferencePictureList(ii);
      xCodeRefPicList(rpl, pcSPS->getLongTermRefsPresent(), pcSPS->getBitsForPOC());
    }
  }
746
  WRITE_FLAG(pcSPS->getUseDualITree(), "qtbtt_dual_tree_intra_flag");
747
  WRITE_UVLC(g_aucLog2[pcSPS->getCTUSize()] - MIN_CU_LOG2, "log2_ctu_size_minus2");
748
  WRITE_UVLC(pcSPS->getLog2MinCodingBlockSize() - 2, "log2_min_luma_coding_block_size_minus2");
749
  WRITE_FLAG(pcSPS->getSplitConsOverrideEnabledFlag(), "partition_constraints_override_enabled_flag");
750 751 752 753
  WRITE_UVLC(g_aucLog2[pcSPS->getMinQTSize(I_SLICE)] - pcSPS->getLog2MinCodingBlockSize(), "sps_log2_diff_min_qt_min_cb_intra_tile_group_luma");
  WRITE_UVLC(g_aucLog2[pcSPS->getMinQTSize(B_SLICE)] - pcSPS->getLog2MinCodingBlockSize(), "sps_log2_diff_min_qt_min_cb_inter_tile_group");
  WRITE_UVLC(pcSPS->getMaxBTDepth(), "sps_max_mtt_hierarchy_depth_inter_tile_group");
  WRITE_UVLC(pcSPS->getMaxBTDepthI(), "sps_max_mtt_hierarchy_depth_intra_tile_group_luma");
754 755
  if (pcSPS->getMaxBTDepthI() != 0)
  {
756 757
    WRITE_UVLC(g_aucLog2[pcSPS->getMaxBTSizeI()] - g_aucLog2[pcSPS->getMinQTSize(I_SLICE)], "sps_log2_diff_max_bt_min_qt_intra_tile_group_luma");
    WRITE_UVLC(g_aucLog2[pcSPS->getMaxTTSizeI()] - g_aucLog2[pcSPS->getMinQTSize(I_SLICE)], "sps_log2_diff_max_tt_min_qt_intra_tile_group_luma");
758 759 760
  }
  if (pcSPS->getMaxBTDepth() != 0)
  {
761 762
    WRITE_UVLC(g_aucLog2[pcSPS->getMaxBTSize()] - g_aucLog2[pcSPS->getMinQTSize(B_SLICE)], "sps_log2_diff_max_bt_min_qt_inter_tile_group");
    WRITE_UVLC(g_aucLog2[pcSPS->getMaxTTSize()] - g_aucLog2[pcSPS->getMinQTSize(B_SLICE)], "sps_log2_diff_max_tt_min_qt_inter_tile_group");
763 764 765
  }
  if (pcSPS->getUseDualITree())
  {
766 767
    WRITE_UVLC(g_aucLog2[pcSPS->getMinQTSize(I_SLICE, CHANNEL_TYPE_CHROMA)] - pcSPS->getLog2MinCodingBlockSize(), "sps_log2_diff_min_qt_min_cb_intra_tile_group_chroma");
    WRITE_UVLC(pcSPS->getMaxBTDepthIChroma(), "sps_max_mtt_hierarchy_depth_intra_tile_group_chroma");
768 769
    if (pcSPS->getMaxBTDepthIChroma() != 0)
    {
770 771
      WRITE_UVLC(g_aucLog2[pcSPS->getMaxBTSizeIChroma()] - g_aucLog2[pcSPS->getMinQTSize(I_SLICE, CHANNEL_TYPE_CHROMA)], "sps_log2_diff_max_bt_min_qt_intra_tile_group_chroma");
      WRITE_UVLC(g_aucLog2[pcSPS->getMaxTTSizeIChroma()] - g_aucLog2[pcSPS->getMinQTSize(I_SLICE, CHANNEL_TYPE_CHROMA)], "sps_log2_diff_max_tt_min_qt_intra_tile_group_chroma");
772 773
    }
  }
774

775 776 777 778
#if MAX_TB_SIZE_SIGNALLING
  // KJS: Not in syntax
  WRITE_UVLC( pcSPS->getLog2MaxTbSize() - 2,                                 "log2_max_luma_transform_block_size_minus2" );
#endif
779 780
  WRITE_FLAG( pcSPS->getSAOEnabledFlag(),                                            "sps_sao_enabled_flag");
  WRITE_FLAG( pcSPS->getALFEnabledFlag(),                                            "sps_alf_enabled_flag" );
781

782
  WRITE_FLAG( pcSPS->getPCMEnabledFlag() ? 1 : 0,                                    "sps_pcm_enabled_flag");
783
  if( pcSPS->getPCMEnabledFlag() )
784 785 786 787 788 789 790 791
  {
    WRITE_CODE( pcSPS->getPCMBitDepth(CHANNEL_TYPE_LUMA) - 1, 4,                            "pcm_sample_bit_depth_luma_minus1" );
    WRITE_CODE( chromaEnabled ? (pcSPS->getPCMBitDepth(CHANNEL_TYPE_CHROMA) - 1) : 0, 4,    "pcm_sample_bit_depth_chroma_minus1" );
    WRITE_UVLC( pcSPS->getPCMLog2MinSize() - 3,                                      "log2_min_pcm_luma_coding_block_size_minus3" );
    WRITE_UVLC( pcSPS->getPCMLog2MaxSize() - pcSPS->getPCMLog2MinSize(),             "log2_diff_max_min_pcm_luma_coding_block_size" );
    WRITE_FLAG( pcSPS->getPCMFilterDisableFlag()?1 : 0,                              "pcm_loop_filter_disable_flag");
  }

792
  if( pcSPS->getCTUSize() + 2*(1 << pcSPS->getLog2MinCodingBlockSize()) <= pcSPS->getPicWidthInLumaSamples() )
793
  {    
794
  WRITE_FLAG( pcSPS->getWrapAroundEnabledFlag() ? 1 : 0,                              "sps_ref_wraparound_enabled_flag" );
795
  if( pcSPS->getWrapAroundEnabledFlag() )
796
  {
797
    WRITE_UVLC( (pcSPS->getWrapAroundOffset()/(1 <<  pcSPS->getLog2MinCodingBlockSize()))-1,  "sps_ref_wraparound_offset_minus1" );
798
  }
799
  }
800

801
  WRITE_FLAG( pcSPS->getSPSTemporalMVPEnabledFlag()  ? 1 : 0,                        "sps_temporal_mvp_enabled_flag" );
802 803 804 805 806 807

  if ( pcSPS->getSPSTemporalMVPEnabledFlag() )
  {
    WRITE_FLAG( pcSPS->getSBTMVPEnabledFlag() ? 1 : 0,                               "sps_sbtmvp_enabled_flag");
  }

808
  WRITE_FLAG( pcSPS->getAMVREnabledFlag() ? 1 : 0,                                   "sps_amvr_enabled_flag" );
809

810
  WRITE_FLAG( pcSPS->getBDOFEnabledFlag() ? 1 : 0,                                   "sps_bdof_enabled_flag" );
811
#if !JVET_O0438_SPS_AFFINE_AMVR_FLAG
812
  WRITE_FLAG( pcSPS->getAffineAmvrEnabledFlag() ? 1 : 0,                             "sps_affine_amvr_enabled_flag" );
813
#endif
814
  WRITE_FLAG( pcSPS->getUseDMVR() ? 1 : 0,                                            "sps_dmvr_enable_flag" );
Seungsoo Jeong's avatar
Seungsoo Jeong committed
815
  WRITE_FLAG(pcSPS->getUseMMVD() ? 1 : 0,                                             "sps_mmvd_enable_flag");
816
  // KJS: sps_cclm_enabled_flag
817
  WRITE_FLAG( pcSPS->getUseLMChroma() ? 1 : 0,                                                 "lm_chroma_enabled_flag" );
818
  if ( pcSPS->getUseLMChroma() && pcSPS->getChromaFormatIdc() == CHROMA_420 )
819
  {
820 821 822
    WRITE_FLAG( pcSPS->getCclmCollocatedChromaFlag() ? 1 : 0,                                  "sps_cclm_collocated_chroma_flag" );
  }

823
  WRITE_FLAG( pcSPS->getUseMTS() ? 1 : 0,                                                      "mts_enabled_flag" );
824 825 826 827
  if ( pcSPS->getUseMTS() )
  {
    WRITE_FLAG( pcSPS->getUseIntraMTS() ? 1 : 0,                                               "mts_intra_enabled_flag" );
    WRITE_FLAG( pcSPS->getUseInterMTS() ? 1 : 0,                                               "mts_inter_enabled_flag" );
828
  }
829
  WRITE_FLAG( pcSPS->getUseLFNST() ? 1 : 0,                                                    "lfnst_enabled_flag" );
830
  WRITE_FLAG( pcSPS->getUseSMVD() ? 1 : 0,                                                     "smvd_flag" );
831
  // KJS: sps_affine_enabled_flag
832
  WRITE_FLAG( pcSPS->getUseAffine() ? 1 : 0,                                                   "affine_flag" );
833 834 835
  if ( pcSPS->getUseAffine() )
  {
    WRITE_FLAG( pcSPS->getUseAffineType() ? 1 : 0,                                             "affine_type_flag" );
836 837 838
#if JVET_O0438_SPS_AFFINE_AMVR_FLAG
    WRITE_FLAG( pcSPS->getAffineAmvrEnabledFlag() ? 1 : 0,                                     "sps_affine_amvr_enabled_flag" );
#endif
839
  }
840 841
  WRITE_FLAG( pcSPS->getUseGBi() ? 1 : 0,                                                      "gbi_flag" );
  WRITE_FLAG(pcSPS->getIBCFlag() ? 1 : 0,                                                      "ibc_flag");
842 843

  // KJS: sps_ciip_enabled_flag
844
  WRITE_FLAG( pcSPS->getUseMHIntra() ? 1 : 0,                                                  "mhintra_flag" );
845

Seungsoo Jeong's avatar
Seungsoo Jeong committed
846 847
  if ( pcSPS->getUseMMVD() )
  {
848
    WRITE_FLAG( pcSPS->getFpelMmvdEnabledFlag() ? 1 : 0,                            "sps_fpel_mmvd_enabled_flag" );
Seungsoo Jeong's avatar
Seungsoo Jeong committed
849
  }
850

851
  WRITE_FLAG( pcSPS->getUseTriangle() ? 1: 0,                                                  "triangle_flag" );
852

853
  WRITE_FLAG( pcSPS->getUseMIP() ? 1: 0,                                                       "sps_mip_flag" );
854
  // KJS: not in draft yet
855
  WRITE_FLAG( pcSPS->getUseSBT() ? 1 : 0,                                             "sbt_enable_flag");
856 857 858 859
  if( pcSPS->getUseSBT() )
  {
    WRITE_FLAG(pcSPS->getMaxSbtSize() == 64 ? 1 : 0,                                  "max_sbt_size_64_flag");
  }
860 861
  // KJS: not in draft yet
  WRITE_FLAG(pcSPS->getUseReshaper() ? 1 : 0, "sps_reshaper_enable_flag");
862 863 864
#if INCLUDE_ISP_CFG_FLAG
  WRITE_FLAG( pcSPS->getUseISP() ? 1 : 0,                                             "isp_enable_flag");
#endif
865

866
#if LUMA_ADAPTIVE_DEBLOCKING_FILTER_QP_OFFSET
867
  WRITE_FLAG( pcSPS->getLadfEnabled() ? 1 : 0,                                                 "sps_ladf_enabled_flag" );
868 869 870 871 872 873 874 875 876 877 878 879
  if ( pcSPS->getLadfEnabled() )
  {
    WRITE_CODE( pcSPS->getLadfNumIntervals() - 2, 2,                                           "sps_num_ladf_intervals_minus2" );
    WRITE_SVLC( pcSPS->getLadfQpOffset( 0 ),                                                   "sps_ladf_lowest_interval_qp_offset");
    for ( int k = 1; k< pcSPS->getLadfNumIntervals(); k++ )
    {
      WRITE_SVLC( pcSPS->getLadfQpOffset( k ),                                                 "sps_ladf_qp_offset" );
      WRITE_UVLC( pcSPS->getLadfIntervalLowerBound( k ) - pcSPS->getLadfIntervalLowerBound( k - 1 ) - 1, "sps_ladf_delta_threshold_minus1" );
    }
  }
#endif

880
  // KJS: reference picture sets to be replaced
881

882 883 884 885 886 887 888 889 890 891 892

  // KJS: remove scaling lists?
  WRITE_FLAG( pcSPS->getScalingListFlag() ? 1 : 0,                                   "scaling_list_enabled_flag" );
  if(pcSPS->getScalingListFlag())
  {
    WRITE_FLAG( pcSPS->getScalingListPresentFlag() ? 1 : 0,                          "sps_scaling_list_data_present_flag" );
    if(pcSPS->getScalingListPresentFlag())
    {
      codeScalingList( pcSPS->getScalingList() );
    }
  }
893

Virginie Drugeon's avatar
Virginie Drugeon committed
894 895 896 897 898 899 900 901 902 903 904 905 906
  const TimingInfo *timingInfo = pcSPS->getTimingInfo();
  WRITE_FLAG(timingInfo->getTimingInfoPresentFlag(),          "timing_info_present_flag");
  if(timingInfo->getTimingInfoPresentFlag())
  {
    WRITE_CODE(timingInfo->getNumUnitsInTick(), 32,           "num_units_in_tick");
    WRITE_CODE(timingInfo->getTimeScale(),      32,           "time_scale");
    WRITE_FLAG(pcSPS->getHrdParametersPresentFlag(),              "hrd_parameters_present_flag");
    if( pcSPS->getHrdParametersPresentFlag() )
    {
      codeHrdParameters(pcSPS->getHrdParameters(), 1, pcSPS->getMaxTLayers() - 1 );
    }
  }

907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975
  WRITE_FLAG( pcSPS->getVuiParametersPresentFlag(),            "vui_parameters_present_flag" );
  if (pcSPS->getVuiParametersPresentFlag())
  {
    codeVUI(pcSPS->getVuiParameters(), pcSPS);
  }

  bool sps_extension_present_flag=false;
  bool sps_extension_flags[NUM_SPS_EXTENSION_FLAGS]={false};

  sps_extension_flags[SPS_EXT__REXT] = pcSPS->getSpsRangeExtension().settingsDifferFromDefaults();

  // Other SPS extension flags checked here.

  for(int i=0; i<NUM_SPS_EXTENSION_FLAGS; i++)
  {
    sps_extension_present_flag|=sps_extension_flags[i];
  }

  WRITE_FLAG( (sps_extension_present_flag?1:0), "sps_extension_present_flag" );

  if (sps_extension_present_flag)
  {
#if ENABLE_TRACING /*|| RExt__DECODER_DEBUG_BIT_STATISTICS*/
    static const char *syntaxStrings[]={ "sps_range_extension_flag",
      "sps_multilayer_extension_flag",
      "sps_extension_6bits[0]",
      "sps_extension_6bits[1]",
      "sps_extension_6bits[2]",
      "sps_extension_6bits[3]",
      "sps_extension_6bits[4]",
      "sps_extension_6bits[5]" };
#endif

    for(int i=0; i<NUM_SPS_EXTENSION_FLAGS; i++)
    {
      WRITE_FLAG( sps_extension_flags[i]?1:0, syntaxStrings[i] );
    }

    for(int i=0; i<NUM_SPS_EXTENSION_FLAGS; i++) // loop used so that the order is determined by the enum.
    {
      if (sps_extension_flags[i])
      {
        switch (SPSExtensionFlagIndex(i))
        {
        case SPS_EXT__REXT:
        {
          const SPSRExt &spsRangeExtension=pcSPS->getSpsRangeExtension();

          WRITE_FLAG( (spsRangeExtension.getTransformSkipRotationEnabledFlag() ? 1 : 0),      "transform_skip_rotation_enabled_flag");
          WRITE_FLAG( (spsRangeExtension.getTransformSkipContextEnabledFlag() ? 1 : 0),       "transform_skip_context_enabled_flag");
          WRITE_FLAG( (spsRangeExtension.getRdpcmEnabledFlag(RDPCM_SIGNAL_IMPLICIT) ? 1 : 0), "implicit_rdpcm_enabled_flag" );
          WRITE_FLAG( (spsRangeExtension.getRdpcmEnabledFlag(RDPCM_SIGNAL_EXPLICIT) ? 1 : 0), "explicit_rdpcm_enabled_flag" );
          WRITE_FLAG( (spsRangeExtension.getExtendedPrecisionProcessingFlag() ? 1 : 0),       "extended_precision_processing_flag" );
          WRITE_FLAG( (spsRangeExtension.getIntraSmoothingDisabledFlag() ? 1 : 0),            "intra_smoothing_disabled_flag" );
          WRITE_FLAG( (spsRangeExtension.getHighPrecisionOffsetsEnabledFlag() ? 1 : 0),       "high_precision_offsets_enabled_flag" );
          WRITE_FLAG( (spsRangeExtension.getPersistentRiceAdaptationEnabledFlag() ? 1 : 0),   "persistent_rice_adaptation_enabled_flag" );
          WRITE_FLAG( (spsRangeExtension.getCabacBypassAlignmentEnabledFlag() ? 1 : 0),       "cabac_bypass_alignment_enabled_flag" );
          break;
        }
        default:
          CHECK(sps_extension_flags[i]!=false, "Unknown PPS extension signalled"); // Should never get here with an active SPS extension flag.
          break;
        }
      }
    }
  }
  xWriteRbspTrailingBits();
}

976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991
void HLSWriter::codeDPS( const DPS* dps )
{
#if ENABLE_TRACING
  xTraceDPSHeader();
#endif
  WRITE_CODE( dps->getDecodingParameterSetId(),     4,        "dps_decoding_parameter_set_id" );
  WRITE_CODE( dps->getMaxSubLayersMinus1(),         3,        "dps_max_sub_layers_minus1" );
  WRITE_FLAG( 0,                                              "dps_reserved_zero_bit" );

  ProfileTierLevel ptl = dps->getProfileTierLevel();
  codeProfileTierLevel( &ptl, dps->getMaxSubLayersMinus1() );

  WRITE_FLAG( 0,                                              "dps_extension_flag" );
  xWriteRbspTrailingBits();
}

992 993 994 995 996 997 998 999 1000
void HLSWriter::codeVPS(const VPS* pcVPS)
{
#if ENABLE_TRACING
  xTraceVPSHeader();
#endif
  WRITE_CODE(pcVPS->getVPSId(), 4, "vps_video_parameter_set_id");
  WRITE_CODE(pcVPS->getMaxLayers() - 1, 8, "vps_max_layers_minus1");
  for (uint32_t i = 0; i <= pcVPS->getMaxLayers() - 1; i++)
  {
Lidong Xu's avatar
Lidong Xu committed
1001 1002
    WRITE_CODE(pcVPS->getVPSIncludedLayerId(i), 7, "vps_included_layer_id");
    WRITE_FLAG(0, "vps_reserved_zero_1bit");
1003 1004 1005 1006 1007 1008 1009
  }

  WRITE_FLAG(0, "vps_extension_flag");

  //future extensions here..
  xWriteRbspTrailingBits();
}
1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021

void HLSWriter::codeSliceHeader         ( Slice* pcSlice )
{
#if ENABLE_TRACING
  xTraceSliceHeader ();
#endif

  CodingStructure& cs = *pcSlice->getPic()->cs;
  const ChromaFormat format                = pcSlice->getSPS()->getChromaFormatIdc();
  const uint32_t         numberValidComponents = getNumberValidComponents(format);
  const bool         chromaEnabled         = isChromaEnabled(format);

1022
  if ( pcSlice->getRapPicFlag() )
1023
  {
1024
    WRITE_FLAG( pcSlice->getNoOutputPriorPicsFlag() ? 1 : 0, "no_output_of_prior_pics_flag" );
1025
  }
1026
  WRITE_UVLC( pcSlice->getPPS()->getPPSId(), "slice_pic_parameter_set_id" );
1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064
  int bitsSliceAddress = 1;
  if (!pcSlice->getPPS()->getRectSliceFlag())
  {
    while (pcSlice->getPPS()->getNumBricksInPic() > (1 << bitsSliceAddress))
    {
      bitsSliceAddress++;
    }
  }
  else
  {
    if (pcSlice->getPPS()->getSignalledSliceIdFlag())
    {
      bitsSliceAddress = pcSlice->getPPS()->getSignalledSliceIdLengthMinus1() + 1;
    }
    else
    {
      while ((pcSlice->getPPS()->getNumSlicesInPicMinus1() + 1) > (1 << bitsSliceAddress))
      {
        bitsSliceAddress++;
      }
    }
  }
  if (pcSlice->getPPS()->getRectSliceFlag() || pcSlice->getPPS()->getNumBricksInPic() > 1)
  {
    if (pcSlice->getPPS()->getRectSliceFlag())
    {
      WRITE_CODE(pcSlice->getPPS()->getSliceId(pcSlice->setSliceIndex()), bitsSliceAddress, "slice_address");
    }
    else
    {
      WRITE_CODE(pcSlice->getSliceCurStartBrickIdx(), bitsSliceAddress, "slice_address");
    }
  }
  if (!pcSlice->getPPS()->getRectSliceFlag() && !pcSlice->getPPS()->getSingleBrickPerSliceFlag())
  {
    WRITE_UVLC(pcSlice->getSliceNumBricks() - 1, "num_bricks_in_slice_minus1");
  }
  
1065
    for( int i = 0; i < pcSlice->getPPS()->getNumExtraSliceHeaderBits(); i++ )
1066
    {
1067
      WRITE_FLAG( 0, "slice_reserved_flag[]" );
1068 1069
    }

1070 1071 1072
    WRITE_UVLC( pcSlice->getSliceType(), "slice_type" );

    if( pcSlice->getPPS()->getOutputFlagPresentFlag() )
1073
    {
1074
      WRITE_FLAG( pcSlice->getPicOutputFlag() ? 1 : 0, "pic_output_flag" );
1075
    }
1076 1077 1078 1079

    int pocBits = pcSlice->getSPS()->getBitsForPOC();
    int pocMask = (1 << pocBits) - 1;
    WRITE_CODE(pcSlice->getPOC() & pocMask, pocBits, "slice_pic_order_cnt_lsb");
Kashyap Kammachi Sreedhar's avatar
Kashyap Kammachi Sreedhar committed
1080
    if( !pcSlice->getIdrPicFlag() || pcSlice->getSPS()->getIDRRefParamListPresent())
1081
    {
Hendry's avatar
Hendry committed
1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165
      //Write L0 related syntax elements
      if (pcSlice->getSPS()->getNumRPL0() > 0)
      {
        WRITE_FLAG(pcSlice->getRPL0idx() != -1 ? 1 : 0, "ref_pic_list_sps_flag[0]");
      }
      if (pcSlice->getRPL0idx() != -1)
      {
        if (pcSlice->getSPS()->getNumRPL0() > 1)
        {
          int numBits = 0;
          while ((1 << numBits) < pcSlice->getSPS()->getNumRPL0())
          {
            numBits++;
          }
          WRITE_CODE(pcSlice->getRPL0idx(), numBits, "ref_pic_list_idx[0]");
        }
      }
      else
      {  //write local RPL0
        xCodeRefPicList(pcSlice->getRPL0(), pcSlice->getSPS()->getLongTermRefsPresent(), pcSlice->getSPS()->getBitsForPOC());
      }
      //Deal POC Msb cycle signalling for LTRP
      if (pcSlice->getRPL0()->getNumberOfLongtermPictures())
      {
        for (int i = 0; i < pcSlice->getRPL0()->getNumberOfLongtermPictures() + pcSlice->getRPL0()->getNumberOfShorttermPictures(); i++)
        {
          if (pcSlice->getRPL0()->isRefPicLongterm(i))
          {
            WRITE_FLAG(pcSlice->getLocalRPL0()->getDeltaPocMSBPresentFlag(i) ? 1 : 0, "delta_poc_msb_present_flag[i][j]");
            if (pcSlice->getLocalRPL0()->getDeltaPocMSBPresentFlag(i))
            {
              WRITE_UVLC(pcSlice->getLocalRPL0()->getDeltaPocMSBCycleLT(i), "delta_poc_msb_cycle_lt[i][j]");
            }
          }
        }
      }

      //Write L1 related syntax elements
      if (!pcSlice->getPPS()->getRpl1IdxPresentFlag())
      {
        CHECK(pcSlice->getRPL1idx() != pcSlice->getRPL0idx(), "RPL1Idx is not signalled but it is not the same as RPL0Idx");
        if (pcSlice->getRPL1idx() == -1)
        {  //write local RPL1
          xCodeRefPicList(pcSlice->getRPL1(), pcSlice->getSPS()->getLongTermRefsPresent(), pcSlice->getSPS()->getBitsForPOC());
        }
      }
      else
      {
        if (pcSlice->getSPS()->getNumRPL1() > 0)
        {
          WRITE_FLAG(pcSlice->getRPL1idx() != -1 ? 1 : 0, "ref_pic_list_sps_flag[1]");
        }
        if (pcSlice->getRPL1idx() != -1)
        {
          if (pcSlice->getSPS()->getNumRPL1() > 1)
          {
            int numBits = 0;
            while ((1 << numBits) < pcSlice->getSPS()->getNumRPL1())
            {
              numBits++;
            }
            WRITE_CODE(pcSlice->getRPL1idx(), numBits, "ref_pic_list_idx[1]");
          }
        }
        else
        {  //write local RPL1
          xCodeRefPicList(pcSlice->getRPL1(), pcSlice->getSPS()->getLongTermRefsPresent(), pcSlice->getSPS()->getBitsForPOC());
        }
      }
      //Deal POC Msb cycle signalling for LTRP
      if (pcSlice->getRPL1()->getNumberOfLongtermPictures())
      {
        for (int i = 0; i < pcSlice->getRPL1()->getNumberOfLongtermPictures() + pcSlice->getRPL1()->getNumberOfShorttermPictures(); i++)
        {
          if (pcSlice->getRPL1()->isRefPicLongterm(i))
          {
            WRITE_FLAG(pcSlice->getLocalRPL1()->getDeltaPocMSBPresentFlag(i) ? 1 : 0, "delta_poc_msb_present_flag[i][j]");
            if (pcSlice->getLocalRPL1()->getDeltaPocMSBPresentFlag(i))
            {
              WRITE_UVLC(pcSlice->getLocalRPL1()->getDeltaPocMSBCycleLT(i), "delta_poc_msb_cycle_lt[i][j]");
            }
          }
        }
      }
1166 1167 1168 1169
      if( pcSlice->getSPS()->getSPSTemporalMVPEnabledFlag() )
      {
        WRITE_FLAG( pcSlice->getEnableTMVPFlag() ? 1 : 0, "slice_temporal_mvp_enabled_flag" );
      }
1170
    }
1171
    if( pcSlice->getSPS()->getSAOEnabledFlag() )
1172
    {
1173 1174 1175 1176 1177
      WRITE_FLAG( pcSlice->getSaoEnabledFlag( CHANNEL_TYPE_LUMA ), "slice_sao_luma_flag" );
      if( chromaEnabled )
      {
        WRITE_FLAG( pcSlice->getSaoEnabledFlag( CHANNEL_TYPE_CHROMA ), "slice_sao_chroma_flag" );
      }
1178
    }
1179

1180
    if( pcSlice->getSPS()->getALFEnabledFlag() )
1181
    {
1182 1183
      const int alfEnabled = pcSlice->getTileGroupAlfEnabledFlag(COMPONENT_Y);
      WRITE_FLAG(alfEnabled, "tile_group_alf_enabled_flag");
1184

1185
      if (alfEnabled)
1186
      {
1187 1188 1189
#if JVET_O0288_UNIFY_ALF_SLICE_TYPE_REMOVAL
        xWriteTruncBinCode(pcSlice->getTileGroupNumAps(), ALF_CTB_MAX_NUM_APS + 1);
#else
1190
        if (pcSlice->isIntra())
1191
        {
1192
          WRITE_FLAG(pcSlice->getTileGroupNumAps(), "tile_group_num_APS");
1193 1194 1195
        }
        else
        {
1196 1197
          xWriteTruncBinCode(pcSlice->getTileGroupNumAps(), ALF_CTB_MAX_NUM_APS + 1);
        }
1198
#endif
1199 1200 1201 1202 1203 1204 1205 1206 1207 1208
        const std::vector<int>&   apsId = pcSlice->getTileGroupApsIdLuma();
        for (int i = 0; i < pcSlice->getTileGroupNumAps(); i++)
        {
          WRITE_CODE(apsId[i], 5, "tile_group_aps_id");
        }

        const int alfChromaIdc = pcSlice->getTileGroupAlfEnabledFlag(COMPONENT_Cb) + pcSlice->getTileGroupAlfEnabledFlag(COMPONENT_Cr) * 2 ;
        truncatedUnaryEqProb(alfChromaIdc, 3);   // alf_chroma_idc
        if (alfChromaIdc)
        {
1209 1210 1211
#if JVET_O0288_UNIFY_ALF_SLICE_TYPE_REMOVAL
          WRITE_CODE(pcSlice->getTileGroupApsIdChroma(), 5, "tile_group_aps_id_chroma");
#else
1212 1213 1214 1215 1216 1217 1218 1219
          if (pcSlice->isIntra()&& pcSlice->getTileGroupNumAps() == 1)
          {
            CHECK(pcSlice->getTileGroupApsIdChroma() != apsId[0], "wrong tile group chroma aps id");
          }
          else
          {
            WRITE_CODE(pcSlice->getTileGroupApsIdChroma(), 5, "tile_group_aps_id_chroma");
          }
1220
#endif
1221 1222
        }
      }
1223
    }
1224

1225
    //check if numrefidxes match the defaults. If not, override
1226

1227 1228
    if ((!pcSlice->isIntra() && pcSlice->getRPL0()->getNumRefEntries() > 1) ||
        (pcSlice->isInterB() && pcSlice->getRPL1()->getNumRefEntries() > 1) )
1229
    {
1230 1231 1232
      int defaultL0 = std::min<int>(pcSlice->getRPL0()->getNumRefEntries(), pcSlice->getPPS()->getNumRefIdxL0DefaultActive());
      int defaultL1 = pcSlice->isInterB() ? std::min<int>(pcSlice->getRPL1()->getNumRefEntries(), pcSlice->getPPS()->getNumRefIdxL1DefaultActive()) : 0;
      bool overrideFlag = ( pcSlice->getNumRefIdx( REF_PIC_LIST_0 ) != defaultL0 || ( pcSlice->isInterB() && pcSlice->getNumRefIdx( REF_PIC_LIST_1 ) != defaultL1 ) );
1233 1234
      WRITE_FLAG( overrideFlag ? 1 : 0, "num_ref_idx_active_override_flag" );
      if( overrideFlag )
1235
      {
1236 1237 1238 1239 1240 1241 1242 1243 1244 1245
        if(pcSlice->getRPL0()->getNumRefEntries() > 1)
        {
          WRITE_UVLC( pcSlice->getNumRefIdx( REF_PIC_LIST_0 ) - 1, "num_ref_idx_l0_active_minus1" );
        }
        else
        {
          pcSlice->setNumRefIdx( REF_PIC_LIST_0, 1);
        }

        if( pcSlice->isInterB() && pcSlice->getRPL1()->getNumRefEntries() > 1)
1246 1247 1248 1249 1250
        {
          WRITE_UVLC( pcSlice->getNumRefIdx( REF_PIC_LIST_1 ) - 1, "num_ref_idx_l1_active_minus1" );
        }
        else
        {
1251
          pcSlice->setNumRefIdx( REF_PIC_LIST_1, pcSlice->isInterB() ? 1 : 0);
1252
        }
1253
      }
1254 1255 1256 1257 1258
      else
      {
        pcSlice->setNumRefIdx( REF_PIC_LIST_0, defaultL0 );
        pcSlice->setNumRefIdx( REF_PIC_LIST_1, defaultL1 );
      }
1259
    }
1260 1261
    else
    {
1262 1263
      pcSlice->setNumRefIdx( REF_PIC_LIST_0, pcSlice->isIntra() ? 0 : 1 );
      pcSlice->setNumRefIdx( REF_PIC_LIST_1, pcSlice->isInterB() ? 1 : 0 );
1264
    }
1265

1266

1267
    if( pcSlice->isInterB() )
1268
    {
1269
      WRITE_FLAG( pcSlice->getMvdL1ZeroFlag() ? 1 : 0, "mvd_l1_zero_flag" );
1270 1271
    }

1272
    if( !pcSlice->isIntra() )
1273
    {
1274 1275 1276 1277 1278 1279 1280 1281
      if( !pcSlice->isIntra() && pcSlice->getPPS()->getCabacInitPresentFlag() )
      {
        SliceType sliceType = pcSlice->getSliceType();
        SliceType  encCABACTableIdx = pcSlice->getEncCABACTableIdx();
        bool encCabacInitFlag = ( sliceType != encCABACTableIdx && encCABACTableIdx != I_SLICE ) ? true : false;
        pcSlice->setCabacInitFlag( encCabacInitFlag );
        WRITE_FLAG( encCabacInitFlag ? 1 : 0, "cabac_init_flag" );
      }
1282
    }
1283

1284
    if( pcSlice->getEnableTMVPFlag() )
1285
    {
1286 1287 1288 1289
      if( pcSlice->getSliceType() == B_SLICE )
      {
        WRITE_FLAG( pcSlice->getColFromL0Flag(), "collocated_from_l0_flag" );
      }
1290

1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302
      if( pcSlice->getSliceType() != I_SLICE &&
        ( ( pcSlice->getColFromL0Flag() == 1 && pcSlice->getNumRefIdx( REF_PIC_LIST_0 ) > 1 ) ||
          ( pcSlice->getColFromL0Flag() == 0 && pcSlice->getNumRefIdx( REF_PIC_LIST_1 ) > 1 ) ) )
      {
        WRITE_UVLC( pcSlice->getColRefIdx(), "collocated_ref_idx" );
      }
    }
    if( ( pcSlice->getPPS()->getUseWP() && pcSlice->getSliceType() == P_SLICE ) || ( pcSlice->getPPS()->getWPBiPred() && pcSlice->getSliceType() == B_SLICE ) )
    {
      xCodePredWeightTable( pcSlice );
    }
    WRITE_FLAG( pcSlice->getDepQuantEnabledFlag() ? 1 : 0, "dep_quant_enabled_flag" );
1303 1304
    if( !pcSlice->getDepQuantEnabledFlag() )
    {
1305
      WRITE_FLAG( pcSlice->getSignDataHidingEnabledFlag() ? 1 : 0, "sign_data_hiding_enabled_flag" );
1306 1307 1308 1309 1310
    }
    else
    {
      CHECK( pcSlice->getSignDataHidingEnabledFlag(), "sign data hiding not supported when dependent quantization is enabled" );
    }
1311 1312 1313
    if (
      pcSlice->getSPS()->getSplitConsOverrideEnabledFlag()
      )
Karsten Suehring's avatar
Karsten Suehring committed
1314 1315 1316
    {
      WRITE_FLAG(pcSlice->getSplitConsOverrideFlag() ? 1 : 0, "partition_constrainst_override_flag");
      if (pcSlice->getSplitConsOverrideFlag())
1317
      {
Karsten Suehring's avatar
Karsten Suehring committed
1318 1319 1320
        WRITE_UVLC(g_aucLog2[pcSlice->getMinQTSize()] - pcSlice->getSPS()->getLog2MinCodingBlockSize(), "log2_diff_min_qt_min_cb");
        WRITE_UVLC(pcSlice->getMaxBTDepth(), "max_bt_depth");
        if (pcSlice->getMaxBTDepth() != 0)
1321
        {
Karsten Suehring's avatar
Karsten Suehring committed
1322 1323 1324 1325 1326
          CHECK(pcSlice->getMaxBTSize() < pcSlice->getMinQTSize(), "maxBtSize is smaller than minQtSize");
          WRITE_UVLC(g_aucLog2[pcSlice->getMaxBTSize()] - g_aucLog2[pcSlice->getMinQTSize()], "log2_diff_max_bt_min_qt");
          CHECK(pcSlice->getMaxTTSize() < pcSlice->getMinQTSize(), "maxTtSize is smaller than minQtSize");
          WRITE_UVLC(g_aucLog2[pcSlice->getMaxTTSize()] - g_aucLog2[pcSlice->getMinQTSize()], "log2_diff_max_tt_min_qt");
        }
1327 1328 1329
        if (
          pcSlice->isIntra() && pcSlice->getSPS()->getUseDualITree()
          )
Karsten Suehring's avatar
Karsten Suehring committed
1330 1331 1332 1333
        {
          WRITE_UVLC(g_aucLog2[pcSlice->getMinQTSizeIChroma()] - pcSlice->getSPS()->getLog2MinCodingBlockSize(), "log2_diff_min_qt_min_cb_chroma");
          WRITE_UVLC(pcSlice->getMaxBTDepthIChroma(), "max_mtt_hierarchy_depth_chroma");
          if (pcSlice->getMaxBTDepthIChroma() != 0)
1334
          {
Karsten Suehring's avatar
Karsten Suehring committed
1335 1336 1337 1338
            CHECK(pcSlice->getMaxBTSizeIChroma() < pcSlice->getMinQTSizeIChroma(), "maxBtSizeC is smaller than minQtSizeC");
            WRITE_UVLC(g_aucLog2[pcSlice->getMaxBTSizeIChroma()] - g_aucLog2[pcSlice->getMinQTSizeIChroma()], "log2_diff_max_bt_min_qt_chroma");
            CHECK(pcSlice->getMaxTTSizeIChroma() < pcSlice->getMinQTSizeIChroma(), "maxTtSizeC is smaller than minQtSizeC");
            WRITE_UVLC(g_aucLog2[pcSlice->getMaxTTSizeIChroma()] - g_aucLog2[pcSlice->getMinQTSizeIChroma()], "log2_diff_max_tt_min_qt_chroma");
1339 1340 1341
          }
        }
      }
Karsten Suehring's avatar
Karsten Suehring committed
1342
    }
Yu Han's avatar
Yu Han committed
1343
    if (!cs.slice->isIntra() || cs.slice->getSPS()->getIBCFlag())
Yu Han's avatar
Yu Han committed
1344 1345 1346 1347
    {
      CHECK(pcSlice->getMaxNumMergeCand() > MRG_MAX_NUM_CANDS, "More merge candidates signalled than supported");
      WRITE_UVLC(MRG_MAX_NUM_CANDS - pcSlice->getMaxNumMergeCand(), "six_minus_max_num_merge_cand");
    }
1348 1349
    if( !pcSlice->isIntra() )
    {
1350

1351
      if ( pcSlice->getSPS()->getSBTMVPEnabledFlag() && !pcSlice->getSPS()->getUseAffine() ) // ATMVP only
1352 1353 1354 1355
      {
        CHECK( pcSlice->getMaxNumAffineMergeCand() != 1, "Sub-block merge can number should be 1" );
      }
      else
1356
      if ( !pcSlice->getSPS()->getSBTMVPEnabledFlag() && !pcSlice->getSPS()->getUseAffine() ) // both off
1357 1358 1359 1360
      {
        CHECK( pcSlice->getMaxNumAffineMergeCand() != 0, "Sub-block merge can number should be 0" );
      }
      else
1361
      if ( pcSlice->getSPS()->getUseAffine() )
1362 1363 1364 1365
      {
        CHECK( pcSlice->getMaxNumAffineMergeCand() > AFFINE_MRG_MAX_NUM_CANDS, "More affine merge candidates signalled than supported" );
        WRITE_UVLC( AFFINE_MRG_MAX_NUM_CANDS - pcSlice->getMaxNumAffineMergeCand(), "five_minus_max_num_affine_merge_cand" );
      }
1366
      if ( pcSlice->getSPS()->getFpelMmvdEnabledFlag() )
1367 1368 1369
      {
        WRITE_FLAG( pcSlice->getDisFracMMVD(), "tile_group_fracmmvd_disabled_flag" );
      }
1370 1371 1372 1373 1374 1375 1376 1377 1378
      if (pcSlice->getSPS()->getUseTriangle() && pcSlice->getMaxNumMergeCand() >= 2)
      {
        CHECK(pcSlice->getMaxNumMergeCand() < pcSlice->getMaxNumTriangleCand(), "Incorrrect max number of triangle candidates!");
        WRITE_UVLC(pcSlice->getMaxNumMergeCand() - pcSlice->getMaxNumTriangleCand(), "max_num_merge_cand_minus_max_num_triangle_cand");
      }
      else
      {
        pcSlice->setMaxNumTriangleCand(0);
      }
1379
    }
1380 1381 1382 1383 1384 1385 1386
#if JVET_O0105_ICT
    if (chromaEnabled)
    {
      WRITE_FLAG( pcSlice->getJointCbCrSignFlag() ? 1 : 0, "joint_cb_cr_sign_flag" );
    }
#endif

1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397
    int iCode = pcSlice->getSliceQp() - ( pcSlice->getPPS()->getPicInitQPMinus26() + 26 );
    WRITE_SVLC( iCode, "slice_qp_delta" );
    if (pcSlice->getPPS()->getSliceChromaQpFlag())
    {
      if (numberValidComponents > COMPONENT_Cb)
      {
        WRITE_SVLC( pcSlice->getSliceChromaQpDelta(COMPONENT_Cb), "slice_cb_qp_offset" );
      }
      if (numberValidComponents > COMPONENT_Cr)
      {
        WRITE_SVLC( pcSlice->getSliceChromaQpDelta(COMPONENT_Cr), "slice_cr_qp_offset" );
1398
        WRITE_SVLC( pcSlice->getSliceChromaQpDelta(JOINT_CbCr),   "slice_cb_cr_qp_offset" );
1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424
      }
      CHECK(numberValidComponents < COMPONENT_Cr+1, "Too many valid components");
    }

    if (pcSlice->getPPS()->getPpsRangeExtension().getChromaQpOffsetListEnabledFlag())
    {
      WRITE_FLAG(pcSlice->getUseChromaQpAdj(), "cu_chroma_qp_offset_enabled_flag");
    }

    if (pcSlice->getPPS()->getDeblockingFilterControlPresentFlag())
    {
      if (pcSlice->getPPS()->getDeblockingFilterOverrideEnabledFlag() )
      {
        WRITE_FLAG(pcSlice->getDeblockingFilterOverrideFlag(), "deblocking_filter_override_flag");
      }
      if (pcSlice->getDeblockingFilterOverrideFlag())
      {
        WRITE_FLAG(pcSlice->getDeblockingFilterDisable(), "slice_deblocking_filter_disabled_flag");
        if(!pcSlice->getDeblockingFilterDisable())
        {
          WRITE_SVLC (pcSlice->getDeblockingFilterBetaOffsetDiv2(), "slice_beta_offset_div2");
          WRITE_SVLC (pcSlice->getDeblockingFilterTcOffsetDiv2(),   "slice_tc_offset_div2");
        }
      }
    }

1425
    bool isSAOEnabled = pcSlice->getSPS()->getSAOEnabledFlag() && (pcSlice->getSaoEnabledFlag(CHANNEL_TYPE_LUMA) || (chromaEnabled && pcSlice->getSaoEnabledFlag(CHANNEL_TYPE_CHROMA)));
1426 1427 1428 1429 1430 1431
    bool isDBFEnabled = (!pcSlice->getDeblockingFilterDisable());

    if(pcSlice->getPPS()->getLoopFilterAcrossSlicesEnabledFlag() && ( isSAOEnabled || isDBFEnabled ))
    {
      WRITE_FLAG(pcSlice->getLFCrossSliceBoundaryFlag()?1:0, "slice_loop_filter_across_slices_enabled_flag");
    }
Taoran Lu's avatar
Taoran Lu committed
1432 1433 1434

    if (pcSlice->getSPS()->getUseReshaper())
    {
1435 1436 1437 1438
      WRITE_FLAG( pcSlice->getLmcsEnabledFlag()? 1 : 0, "slice_lmcs_enabled_flag");
      if (pcSlice->getLmcsEnabledFlag())
      {
        WRITE_CODE(pcSlice->getLmcsAPSId(), 5, "slice_lmcs_aps_id");
1439
#if !JVET_O1109_UNFIY_CRS
1440
        if (!(pcSlice->getSPS()->getUseDualITree() && pcSlice->isIntra()))
1441
#endif
1442 1443
          WRITE_FLAG(pcSlice->getLmcsChromaResidualScaleFlag(), "slice_chroma_residual_scale_flag");
      }
Taoran Lu's avatar
Taoran Lu committed
1444
    }
1445 1446 1447 1448 1449 1450 1451 1452

  if(pcSlice->getPPS()->getSliceHeaderExtensionPresentFlag())
  {
    WRITE_UVLC(0,"slice_segment_header_extension_length");
  }

}

1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464
void  HLSWriter::codeConstraintInfo  ( const ConstraintInfo* cinfo )
{
  WRITE_FLAG(cinfo->getProgressiveSourceFlag(),   "general_progressive_source_flag"         );
  WRITE_FLAG(cinfo->getInterlacedSourceFlag(),    "general_interlaced_source_flag"          );
  WRITE_FLAG(cinfo->getNonPackedConstraintFlag(), "general_non_packed_constraint_flag"      );
  WRITE_FLAG(cinfo->getFrameOnlyConstraintFlag(), "general_frame_only_constraint_flag"      );
  WRITE_FLAG(cinfo->getIntraOnlyConstraintFlag(),     "intra_only_constraint_flag"      );

  WRITE_CODE(cinfo->getMaxBitDepthConstraintIdc(), 4, "max_bitdepth_constraint_idc" );
  WRITE_CODE(cinfo->getMaxChromaFormatConstraintIdc(), 2, "max_chroma_format_constraint_idc" );

  WRITE_FLAG(cinfo->getNoQtbttDualTreeIntraConstraintFlag() ? 1 : 0, "no_qtbtt_dual_tree_intra_constraint_flag");
1465
  WRITE_FLAG(cinfo->getNoPartitionConstraintsOverrideConstraintFlag() ? 1 : 0, "no_partition_constraints_override_constraint_flag");
1466 1467 1468 1469 1470 1471 1472 1473
  WRITE_FLAG(cinfo->getNoSaoConstraintFlag() ? 1 : 0, "no_sao_constraint_flag");
  WRITE_FLAG(cinfo->getNoAlfConstraintFlag() ? 1 : 0, "no_alf_constraint_flag");
  WRITE_FLAG(cinfo->getNoPcmConstraintFlag() ? 1 : 0, "no_pcm_constraint_flag");
  WRITE_FLAG(cinfo->getNoRefWraparoundConstraintFlag() ? 1 : 0, "no_ref_wraparound_constraint_flag");
  WRITE_FLAG(cinfo->getNoTemporalMvpConstraintFlag() ? 1 : 0, "no_temporal_mvp_constraint_flag");
  WRITE_FLAG(cinfo->getNoSbtmvpConstraintFlag() ? 1 : 0, "no_sbtmvp_constraint_flag");
  WRITE_FLAG(cinfo->getNoAmvrConstraintFlag() ? 1 : 0, "no_amvr_constraint_flag");
  WRITE_FLAG(cinfo->getNoBdofConstraintFlag() ? 1 : 0, "no_bdof_constraint_flag");
1474
  WRITE_FLAG(cinfo->getNoDmvrConstraintFlag() ? 1 : 0, "no_dmvr_constraint_flag");
1475 1476
  WRITE_FLAG(cinfo->getNoCclmConstraintFlag() ? 1 : 0, "no_cclm_constraint_flag");
  WRITE_FLAG(cinfo->getNoMtsConstraintFlag() ? 1 : 0, "no_mts_constraint_flag");
1477
  WRITE_FLAG(cinfo->getNoSbtConstraintFlag() ? 1 : 0, "no_sbt_constraint_flag");
1478 1479
  WRITE_FLAG(cinfo->getNoAffineMotionConstraintFlag() ? 1 : 0, "no_affine_motion_constraint_flag");
  WRITE_FLAG(cinfo->getNoGbiConstraintFlag() ? 1 : 0, "no_gbi_constraint_flag");
1480
  WRITE_FLAG(cinfo->getNoIbcConstraintFlag() ? 1 : 0, "no_ibc_constraint_flag");
1481
  WRITE_FLAG(cinfo->getNoMhIntraConstraintFlag() ? 1 : 0, "no_mh_intra_constraint_flag");
1482
  WRITE_FLAG(cinfo->getNoFPelMmvdConstraintFlag() ? 1 : 0, "no_fpel_mmvd_constraint_flag");
1483 1484
  WRITE_FLAG(cinfo->getNoTriangleConstraintFlag() ? 1 : 0, "no_triangle_constraint_flag");
  WRITE_FLAG(cinfo->getNoLadfConstraintFlag() ? 1 : 0, "no_ladf_constraint_flag");
1485
  WRITE_FLAG(cinfo->getNoTransformSkipConstraintFlag() ? 1 : 0, "no_transform_skip_constraint_flag");
1486 1487 1488 1489 1490 1491 1492 1493 1494 1495
  WRITE_FLAG(cinfo->getNoQpDeltaConstraintFlag() ? 1 : 0, "no_qp_delta_constraint_flag");
  WRITE_FLAG(cinfo->getNoDepQuantConstraintFlag() ? 1 : 0, "no_dep_quant_constraint_flag");
  WRITE_FLAG(cinfo->getNoSignDataHidingConstraintFlag() ? 1 : 0, "no_sign_data_hiding_constraint_flag");
}


void  HLSWriter::codeProfileTierLevel    ( const ProfileTierLevel* ptl, int maxNumSubLayersMinus1 )
{
  WRITE_CODE( int(ptl->getProfileIdc()), 7 ,   "general_profile_idc"                     );
  WRITE_FLAG( ptl->getTierFlag()==Level::HIGH, "general_tier_flag"                       );
Lidong Xu's avatar
Lidong Xu committed
1496
  WRITE_CODE( ptl->getSubProfileIdc(), 24,      "general_sub_profile_idc"                );
1497 1498 1499 1500 1501 1502 1503 1504 1505 1506

  codeConstraintInfo(ptl->getConstraintInfo());

  WRITE_CODE( int(ptl->getLevelIdc()), 8 ,     "general_level_idc"                     );

  for (int i = 0; i < maxNumSubLayersMinus1; i++)
  {
    WRITE_FLAG( ptl->getSubLayerLevelPresentFlag(i),   "sub_layer_level_present_flag[i]" );
  }

1507
  while (!isByteAligned())
1508 1509 1510
  {
    WRITE_FLAG(0, "ptl_alignment_zero_bit");
  }
1511

1512 1513 1514 1515 1516 1517 1518 1519 1520 1521
  for(int i = 0; i < maxNumSubLayersMinus1; i++)
  {
    if( ptl->getSubLayerLevelPresentFlag(i) )
    {
      WRITE_CODE( int(ptl->getSubLayerLevelIdc(i)), 8, "sub_layer_level_idc[i]" );
    }
  }

}

1522 1523 1524 1525 1526 1527 1528 1529

/**
* Write tiles and wavefront substreams sizes for the slice header (entry points).
*
* \param pSlice Slice structure that contains the substream size information.
*/
void  HLSWriter::codeTilesWPPEntryPoint( Slice* pSlice )
{
Karsten Suehring's avatar
Karsten Suehring committed
1530
  if (pSlice->getPPS()->getSingleTileInPicFlag() && !pSlice->getPPS()->getEntropyCodingSyncEnabledFlag())
1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658
  {
    return;
  }
  uint32_t maxOffset = 0;
  for(int idx=0; idx<pSlice->getNumberOfSubstreamSizes(); idx++)
  {
    uint32_t offset=pSlice->getSubstreamSize(idx);
    if ( offset > maxOffset )
    {
      maxOffset = offset;
    }
  }

  // Determine number of bits "offsetLenMinus1+1" required for entry point information
  uint32_t offsetLenMinus1 = 0;
  while (maxOffset >= (1u << (offsetLenMinus1 + 1)))
  {
    offsetLenMinus1++;
    CHECK(offsetLenMinus1 + 1 >= 32, "Invalid offset lenght minus 1");
  }

  WRITE_UVLC(pSlice->getNumberOfSubstreamSizes(), "num_entry_point_offsets");
  if (pSlice->getNumberOfSubstreamSizes()>0)
  {
    WRITE_UVLC(offsetLenMinus1, "offset_len_minus1");

    for (uint32_t idx=0; idx<pSlice->getNumberOfSubstreamSizes(); idx++)
    {
      WRITE_CODE(pSlice->getSubstreamSize(idx)-1, offsetLenMinus1+1, "entry_point_offset_minus1");
    }
  }
}


// ====================================================================================================================
// Protected member functions
// ====================================================================================================================

//! Code weighted prediction tables
void HLSWriter::xCodePredWeightTable( Slice* pcSlice )
{
  WPScalingParam  *wp;
  const ChromaFormat    format                = pcSlice->getSPS()->getChromaFormatIdc();
  const uint32_t            numberValidComponents = getNumberValidComponents(format);
  const bool            bChroma               = isChromaEnabled(format);
  const int             iNbRef                = (pcSlice->getSliceType() == B_SLICE ) ? (2) : (1);
  bool            bDenomCoded           = false;
  uint32_t            uiTotalSignalledWeightFlags = 0;

  if ( (pcSlice->getSliceType()==P_SLICE && pcSlice->getPPS()->getUseWP()) || (pcSlice->getSliceType()==B_SLICE && pcSlice->getPPS()->getWPBiPred()) )
  {
    for ( int iNumRef=0 ; iNumRef<iNbRef ; iNumRef++ ) // loop over l0 and l1 syntax elements
    {
      RefPicList  eRefPicList = ( iNumRef ? REF_PIC_LIST_1 : REF_PIC_LIST_0 );

      // NOTE: wp[].uiLog2WeightDenom and wp[].bPresentFlag are actually per-channel-type settings.

      for ( int iRefIdx=0 ; iRefIdx<pcSlice->getNumRefIdx(eRefPicList) ; iRefIdx++ )
      {