text: /* 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.
   *
   * Copyright (c) 2010-2015, ITU/ISO/IEC
   * 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     TEncCavlc.cpp
      \brief    CAVLC encoder class
  */
  
  #include "../TLibCommon/CommonDef.h"
  #include "TEncCavlc.h"
  #include "SEIwrite.h"
  
  //! \ingroup TLibEncoder
  //! \{
  
  #if ENC_DEC_TRACE
  
  Void  xTraceVPSHeader ()
  {
    fprintf( g_hTrace, "=========== Video Parameter Set     ===========\n" );
  }
  
  Void  xTraceSPSHeader ()
  {
    fprintf( g_hTrace, "=========== Sequence Parameter Set  ===========\n" );
  }
  
  Void  xTracePPSHeader ()
  {
    fprintf( g_hTrace, "=========== Picture Parameter Set  ===========\n");
  }
  
  Void  xTraceSliceHeader ()
  {
    fprintf( g_hTrace, "=========== Slice ===========\n");
  }
  
  #endif
  
  
  
  // ====================================================================================================================
  // Constructor / destructor / create / destroy
  // ====================================================================================================================
  
  TEncCavlc::TEncCavlc()
  {
    m_pcBitIf           = NULL;
  }
  
  TEncCavlc::~TEncCavlc()
  {
  }
  
  
  // ====================================================================================================================
  // Public member functions
  // ====================================================================================================================
  
  Void TEncCavlc::resetEntropy(const TComSlice* /*pSlice*/)
  {
  }
  
  
  Void TEncCavlc::codeShortTermRefPicSet( const TComReferencePictureSet* rps, Bool calledFromSliceHeader, Int idx)
  {
  #if PRINT_RPS_INFO
    Int lastBits = getNumberOfWrittenBits();
  #endif
    if (idx > 0)
    {
    WRITE_FLAG( rps->getInterRPSPrediction(), "inter_ref_pic_set_prediction_flag" ); // inter_RPS_prediction_flag
    }
    if (rps->getInterRPSPrediction())
    {
      Int deltaRPS = rps->getDeltaRPS();
      if(calledFromSliceHeader)
      {
        WRITE_UVLC( rps->getDeltaRIdxMinus1(), "delta_idx_minus1" ); // delta index of the Reference Picture Set used for prediction minus 1
      }
  
      WRITE_CODE( (deltaRPS >=0 ? 0: 1), 1, "delta_rps_sign" ); //delta_rps_sign
      WRITE_UVLC( abs(deltaRPS) - 1, "abs_delta_rps_minus1"); // absolute delta RPS minus 1
  
      for(Int j=0; j < rps->getNumRefIdc(); j++)
      {
        Int refIdc = rps->getRefIdc(j);
        WRITE_CODE( (refIdc==1? 1: 0), 1, "used_by_curr_pic_flag" ); //first bit is "1" if Idc is 1
        if (refIdc != 1)
        {
          WRITE_CODE( refIdc>>1, 1, "use_delta_flag" ); //second bit is "1" if Idc is 2, "0" otherwise.
        }
      }
    }
    else
    {
      WRITE_UVLC( rps->getNumberOfNegativePictures(), "num_negative_pics" );
      WRITE_UVLC( rps->getNumberOfPositivePictures(), "num_positive_pics" );
      Int prev = 0;
      for(Int j=0 ; j < rps->getNumberOfNegativePictures(); j++)
      {
        WRITE_UVLC( prev-rps->getDeltaPOC(j)-1, "delta_poc_s0_minus1" );
        prev = rps->getDeltaPOC(j);
        WRITE_FLAG( rps->getUsed(j), "used_by_curr_pic_s0_flag");
      }
      prev = 0;
      for(Int j=rps->getNumberOfNegativePictures(); j < rps->getNumberOfNegativePictures()+rps->getNumberOfPositivePictures(); j++)
      {
        WRITE_UVLC( rps->getDeltaPOC(j)-prev-1, "delta_poc_s1_minus1" );
        prev = rps->getDeltaPOC(j);
        WRITE_FLAG( rps->getUsed(j), "used_by_curr_pic_s1_flag" );
      }
    }
  
  #if PRINT_RPS_INFO
    printf("irps=%d (%2d bits) ", rps->getInterRPSPrediction(), getNumberOfWrittenBits() - lastBits);
    rps->printDeltaPOC();
  #endif
  }
  
  
  Void TEncCavlc::codePPS( const TComPPS* pcPPS )
  {
  #if ENC_DEC_TRACE
    xTracePPSHeader ();
  #endif
  
    WRITE_UVLC( pcPPS->getPPSId(),                             "pps_pic_parameter_set_id" );
    WRITE_UVLC( pcPPS->getSPSId(),                             "pps_seq_parameter_set_id" );
    WRITE_FLAG( pcPPS->getDependentSliceSegmentsEnabledFlag()    ? 1 : 0, "dependent_slice_segments_enabled_flag" );
    WRITE_FLAG( pcPPS->getOutputFlagPresentFlag() ? 1 : 0,     "output_flag_present_flag" );
    WRITE_CODE( pcPPS->getNumExtraSliceHeaderBits(), 3,        "num_extra_slice_header_bits");
    WRITE_FLAG( pcPPS->getSignHideFlag(), "sign_data_hiding_flag" );
    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");
  
    WRITE_SVLC( pcPPS->getPicInitQPMinus26(),                  "init_qp_minus26");
    WRITE_FLAG( pcPPS->getConstrainedIntraPred() ? 1 : 0,      "constrained_intra_pred_flag" );
    WRITE_FLAG( pcPPS->getUseTransformSkip() ? 1 : 0,  "transform_skip_enabled_flag" );
    WRITE_FLAG( pcPPS->getUseDQP() ? 1 : 0, "cu_qp_delta_enabled_flag" );
    if ( pcPPS->getUseDQP() )
    {
      WRITE_UVLC( pcPPS->getMaxCuDQPDepth(), "diff_cu_qp_delta_depth" );
    }
  
    WRITE_SVLC( pcPPS->getQpOffset(COMPONENT_Cb), "pps_cb_qp_offset" );
    WRITE_SVLC( pcPPS->getQpOffset(COMPONENT_Cr), "pps_cr_qp_offset" );
  
    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->getTransquantBypassEnableFlag() ? 1 : 0, "transquant_bypass_enable_flag" );
    WRITE_FLAG( pcPPS->getTilesEnabledFlag()             ? 1 : 0, "tiles_enabled_flag" );
    WRITE_FLAG( pcPPS->getEntropyCodingSyncEnabledFlag() ? 1 : 0, "entropy_coding_sync_enabled_flag" );
    if( pcPPS->getTilesEnabledFlag() )
    {
      WRITE_UVLC( pcPPS->getNumTileColumnsMinus1(),                                    "num_tile_columns_minus1" );
      WRITE_UVLC( pcPPS->getNumTileRowsMinus1(),                                       "num_tile_rows_minus1" );
      WRITE_FLAG( pcPPS->getTileUniformSpacingFlag(),                                  "uniform_spacing_flag" );
      if( !pcPPS->getTileUniformSpacingFlag() )
      {
        for(UInt i=0; i<pcPPS->getNumTileColumnsMinus1(); i++)
        {
          WRITE_UVLC( pcPPS->getTileColumnWidth(i)-1,                                  "column_width_minus1" );
        }
        for(UInt i=0; i<pcPPS->getNumTileRowsMinus1(); i++)
        {
          WRITE_UVLC( pcPPS->getTileRowHeight(i)-1,                                    "row_height_minus1" );
        }
      }
      if(pcPPS->getNumTileColumnsMinus1() !=0 || pcPPS->getNumTileRowsMinus1() !=0)
      {
        WRITE_FLAG( pcPPS->getLoopFilterAcrossTilesEnabledFlag()?1 : 0,          "loop_filter_across_tiles_enabled_flag");
      }
    }
    WRITE_FLAG( pcPPS->getLoopFilterAcrossSlicesEnabledFlag()?1 : 0,        "pps_loop_filter_across_slices_enabled_flag");
    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->getPicDisableDeblockingFilterFlag() ? 1 : 0,       "pps_disable_deblocking_filter_flag" );
      if(!pcPPS->getPicDisableDeblockingFilterFlag())
      {
        WRITE_SVLC( pcPPS->getDeblockingFilterBetaOffsetDiv2(),             "pps_beta_offset_div2" );
        WRITE_SVLC( pcPPS->getDeblockingFilterTcOffsetDiv2(),               "pps_tc_offset_div2" );
      }
    }
    WRITE_FLAG( pcPPS->getScalingListPresentFlag() ? 1 : 0,                          "pps_scaling_list_data_present_flag" );
    if( pcPPS->getScalingListPresentFlag() )
    {
      codeScalingList( pcPPS->getScalingList() );
    }
    WRITE_FLAG( pcPPS->getListsModificationPresentFlag(), "lists_modification_present_flag");
    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 ENC_DEC_TRACE || 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 TComPPSRExt &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(UInt(ppsRangeExtension.getChromaQpOffsetListEnabledFlag()),           "chroma_qp_offset_list_enabled_flag" );
                if (ppsRangeExtension.getChromaQpOffsetListEnabledFlag())
                {
                  WRITE_UVLC(ppsRangeExtension.getDiffCuChromaQpOffsetDepth(),                   "diff_cu_chroma_qp_offset_depth");
                  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:
              assert(pps_extension_flags[i]==false); // 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();
  }
  
  Void TEncCavlc::codeVUI( const TComVUI *pcVUI, const TComSPS* pcSPS )
  {
  #if ENC_DEC_TRACE
    fprintf( g_hTrace, "----------- vui_parameters -----------\n");
  #endif
    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->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_CODE(pcVUI->getVideoFormat(), 3,                      "video_format");
      WRITE_FLAG(pcVUI->getVideoFullRangeFlag(),                  "video_full_range_flag");
      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->getChromaLocInfoPresentFlag(),              "chroma_loc_info_present_flag");
    if (pcVUI->getChromaLocInfoPresentFlag())
    {
      WRITE_UVLC(pcVUI->getChromaSampleLocTypeTopField(),         "chroma_sample_loc_type_top_field");
      WRITE_UVLC(pcVUI->getChromaSampleLocTypeBottomField(),      "chroma_sample_loc_type_bottom_field");
    }
  
    WRITE_FLAG(pcVUI->getNeutralChromaIndicationFlag(),           "neutral_chroma_indication_flag");
    WRITE_FLAG(pcVUI->getFieldSeqFlag(),                          "field_seq_flag");
    WRITE_FLAG(pcVUI->getFrameFieldInfoPresentFlag(),             "frame_field_info_present_flag");
  
    Window defaultDisplayWindow = pcVUI->getDefaultDisplayWindow();
    WRITE_FLAG(defaultDisplayWindow.getWindowEnabledFlag(),       "default_display_window_flag");
    if( defaultDisplayWindow.getWindowEnabledFlag() )
    {
      WRITE_UVLC(defaultDisplayWindow.getWindowLeftOffset()  / TComSPS::getWinUnitX(pcSPS->getChromaFormatIdc()), "def_disp_win_left_offset");
      WRITE_UVLC(defaultDisplayWindow.getWindowRightOffset() / TComSPS::getWinUnitX(pcSPS->getChromaFormatIdc()), "def_disp_win_right_offset");
      WRITE_UVLC(defaultDisplayWindow.getWindowTopOffset()   / TComSPS::getWinUnitY(pcSPS->getChromaFormatIdc()), "def_disp_win_top_offset");
      WRITE_UVLC(defaultDisplayWindow.getWindowBottomOffset()/ TComSPS::getWinUnitY(pcSPS->getChromaFormatIdc()), "def_disp_win_bottom_offset");
    }
    const TimingInfo *timingInfo = pcVUI->getTimingInfo();
    WRITE_FLAG(timingInfo->getTimingInfoPresentFlag(),          "vui_timing_info_present_flag");
    if(timingInfo->getTimingInfoPresentFlag())
    {
      WRITE_CODE(timingInfo->getNumUnitsInTick(), 32,           "vui_num_units_in_tick");
      WRITE_CODE(timingInfo->getTimeScale(),      32,           "vui_time_scale");
      WRITE_FLAG(timingInfo->getPocProportionalToTimingFlag(),  "vui_poc_proportional_to_timing_flag");
      if(timingInfo->getPocProportionalToTimingFlag())
      {
        WRITE_UVLC(timingInfo->getNumTicksPocDiffOneMinus1(),   "vui_num_ticks_poc_diff_one_minus1");
      }
      WRITE_FLAG(pcVUI->getHrdParametersPresentFlag(),              "vui_hrd_parameters_present_flag");
      if( pcVUI->getHrdParametersPresentFlag() )
      {
        codeHrdParameters(pcVUI->getHrdParameters(), 1, pcSPS->getMaxTLayers() - 1 );
      }
    }
  
    WRITE_FLAG(pcVUI->getBitstreamRestrictionFlag(),              "bitstream_restriction_flag");
    if (pcVUI->getBitstreamRestrictionFlag())
    {
      WRITE_FLAG(pcVUI->getTilesFixedStructureFlag(),             "tiles_fixed_structure_flag");
      WRITE_FLAG(pcVUI->getMotionVectorsOverPicBoundariesFlag(),  "motion_vectors_over_pic_boundaries_flag");
      WRITE_FLAG(pcVUI->getRestrictedRefPicListsFlag(),           "restricted_ref_pic_lists_flag");
      WRITE_UVLC(pcVUI->getMinSpatialSegmentationIdc(),           "min_spatial_segmentation_idc");
      WRITE_UVLC(pcVUI->getMaxBytesPerPicDenom(),                 "max_bytes_per_pic_denom");
      WRITE_UVLC(pcVUI->getMaxBitsPerMinCuDenom(),                "max_bits_per_min_cu_denom");
      WRITE_UVLC(pcVUI->getLog2MaxMvLengthHorizontal(),           "log2_max_mv_length_horizontal");
      WRITE_UVLC(pcVUI->getLog2MaxMvLengthVertical(),             "log2_max_mv_length_vertical");
    }
  }
  
  Void TEncCavlc::codeHrdParameters( const TComHRD *hrd, Bool commonInfPresentFlag, UInt maxNumSubLayersMinus1 )
  {
    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");
          }
        }
      }
    }
  }
  
  Void TEncCavlc::codeSPS( const TComSPS* pcSPS )
  {
  
    const ChromaFormat format                = pcSPS->getChromaFormatIdc();
    const Bool         chromaEnabled         = isChromaEnabled(format);
  
  #if ENC_DEC_TRACE
    xTraceSPSHeader ();
  #endif
    WRITE_CODE( pcSPS->getVPSId (),          4,       "sps_video_parameter_set_id" );
    WRITE_CODE( pcSPS->getMaxTLayers() - 1,  3,       "sps_max_sub_layers_minus1" );
    WRITE_FLAG( pcSPS->getTemporalIdNestingFlag() ? 1 : 0, "sps_temporal_id_nesting_flag" );
    codePTL(pcSPS->getPTL(), 1, pcSPS->getMaxTLayers() - 1);
    WRITE_UVLC( pcSPS->getSPSId (),                   "sps_seq_parameter_set_id" );
    WRITE_UVLC( Int(pcSPS->getChromaFormatIdc ()),    "chroma_format_idc" );
    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();
  
    WRITE_FLAG( conf.getWindowEnabledFlag(),          "conformance_window_flag" );
    if (conf.getWindowEnabledFlag())
    {
      WRITE_UVLC( conf.getWindowLeftOffset()   / TComSPS::getWinUnitX(pcSPS->getChromaFormatIdc() ), "conf_win_left_offset" );
      WRITE_UVLC( conf.getWindowRightOffset()  / TComSPS::getWinUnitX(pcSPS->getChromaFormatIdc() ), "conf_win_right_offset" );
      WRITE_UVLC( conf.getWindowTopOffset()    / TComSPS::getWinUnitY(pcSPS->getChromaFormatIdc() ), "conf_win_top_offset" );
      WRITE_UVLC( conf.getWindowBottomOffset() / TComSPS::getWinUnitY(pcSPS->getChromaFormatIdc() ), "conf_win_bottom_offset" );
    }
  
    WRITE_UVLC( pcSPS->getBitDepth(CHANNEL_TYPE_LUMA) - 8,                      "bit_depth_luma_minus8" );
  
    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" );
  
    const Bool subLayerOrderingInfoPresentFlag = 1;
    WRITE_FLAG(subLayerOrderingInfoPresentFlag,       "sps_sub_layer_ordering_info_present_flag");
    for(UInt 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->getMaxLatencyIncrease(i),           "sps_max_latency_increase_plus1[i]" );
      if (!subLayerOrderingInfoPresentFlag)
      {
        break;
      }
    }
    assert( pcSPS->getMaxCUWidth() == pcSPS->getMaxCUHeight() );
    WRITE_UVLC( pcSPS->getLog2MinCodingBlockSize() - 3,                                "log2_min_luma_coding_block_size_minus3" );
    WRITE_UVLC( pcSPS->getLog2DiffMaxMinCodingBlockSize(),                             "log2_diff_max_min_luma_coding_block_size" );
    WRITE_UVLC( pcSPS->getQuadtreeTULog2MinSize() - 2,                                 "log2_min_luma_transform_block_size_minus2" );
    WRITE_UVLC( pcSPS->getQuadtreeTULog2MaxSize() - pcSPS->getQuadtreeTULog2MinSize(), "log2_diff_max_min_luma_transform_block_size" );
    WRITE_UVLC( pcSPS->getQuadtreeTUMaxDepthInter() - 1,                               "max_transform_hierarchy_depth_inter" );
    WRITE_UVLC( pcSPS->getQuadtreeTUMaxDepthIntra() - 1,                               "max_transform_hierarchy_depth_intra" );
    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() );
      }
    }
    WRITE_FLAG( pcSPS->getUseAMP() ? 1 : 0,                                            "amp_enabled_flag" );
    WRITE_FLAG( pcSPS->getUseSAO() ? 1 : 0,                                            "sample_adaptive_offset_enabled_flag");
  
    WRITE_FLAG( pcSPS->getUsePCM() ? 1 : 0,                                            "pcm_enabled_flag");
    if( pcSPS->getUsePCM() )
    {
      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");
    }
  
    assert( pcSPS->getMaxTLayers() > 0 );
  
    const TComRPSList* rpsList = pcSPS->getRPSList();
  
    WRITE_UVLC(rpsList->getNumberOfReferencePictureSets(), "num_short_term_ref_pic_sets" );
    for(Int i=0; i < rpsList->getNumberOfReferencePictureSets(); i++)
    {
      const TComReferencePictureSet*rps = rpsList->getReferencePictureSet(i);
      codeShortTermRefPicSet( rps,false, i);
    }
    WRITE_FLAG( pcSPS->getLongTermRefsPresent() ? 1 : 0,         "long_term_ref_pics_present_flag" );
    if (pcSPS->getLongTermRefsPresent())
    {
      WRITE_UVLC(pcSPS->getNumLongTermRefPicSPS(), "num_long_term_ref_pics_sps" );
      for (UInt k = 0; k < pcSPS->getNumLongTermRefPicSPS(); k++)
      {
        WRITE_CODE( pcSPS->getLtRefPicPocLsbSps(k), pcSPS->getBitsForPOC(), "lt_ref_pic_poc_lsb_sps");
        WRITE_FLAG( pcSPS->getUsedByCurrPicLtSPSFlag(k), "used_by_curr_pic_lt_sps_flag[i]");
      }
    }
    WRITE_FLAG( pcSPS->getTMVPFlagsPresent()  ? 1 : 0,           "sps_temporal_mvp_enable_flag" );
  
    WRITE_FLAG( pcSPS->getUseStrongIntraSmoothing(),             "sps_strong_intra_smoothing_enable_flag" );
  
    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 ENC_DEC_TRACE || 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 TComSPSRExt &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:
              assert(sps_extension_flags[i]==false); // Should never get here with an active SPS extension flag.
              break;
          }
        }
      }
    }
    xWriteRbspTrailingBits();
  }
  
  Void TEncCavlc::codeVPS( const TComVPS* pcVPS )
  {
  #if ENC_DEC_TRACE
    xTraceVPSHeader();
  #endif
    WRITE_CODE( pcVPS->getVPSId(),                    4,        "vps_video_parameter_set_id" );
    WRITE_FLAG(                                       1,        "vps_base_layer_internal_flag" );
    WRITE_FLAG(                                       1,        "vps_base_layer_available_flag" );
    WRITE_CODE( 0,                                    6,        "vps_max_layers_minus1" );
    WRITE_CODE( pcVPS->getMaxTLayers() - 1,           3,        "vps_max_sub_layers_minus1" );
    WRITE_FLAG( pcVPS->getTemporalNestingFlag(),                "vps_temporal_id_nesting_flag" );
    assert (pcVPS->getMaxTLayers()>1||pcVPS->getTemporalNestingFlag());
    WRITE_CODE( 0xffff,                              16,        "vps_reserved_0xffff_16bits" );
    codePTL( pcVPS->getPTL(), true, pcVPS->getMaxTLayers() - 1 );
    const Bool subLayerOrderingInfoPresentFlag = 1;
    WRITE_FLAG(subLayerOrderingInfoPresentFlag,              "vps_sub_layer_ordering_info_present_flag");
    for(UInt i=0; i <= pcVPS->getMaxTLayers()-1; i++)
    {
      WRITE_UVLC( pcVPS->getMaxDecPicBuffering(i) - 1,       "vps_max_dec_pic_buffering_minus1[i]" );
      WRITE_UVLC( pcVPS->getNumReorderPics(i),               "vps_max_num_reorder_pics[i]" );
      WRITE_UVLC( pcVPS->getMaxLatencyIncrease(i),           "vps_max_latency_increase_plus1[i]" );
      if (!subLayerOrderingInfoPresentFlag)
      {
        break;
      }
    }
  
    assert( pcVPS->getNumHrdParameters() <= MAX_VPS_NUM_HRD_PARAMETERS );
    assert( pcVPS->getMaxNuhReservedZeroLayerId() < MAX_VPS_NUH_RESERVED_ZERO_LAYER_ID_PLUS1 );
    WRITE_CODE( pcVPS->getMaxNuhReservedZeroLayerId(), 6,     "vps_max_layer_id" );
    WRITE_UVLC( pcVPS->getMaxOpSets() - 1,                    "vps_num_layer_sets_minus1" );
    for( UInt opsIdx = 1; opsIdx <= ( pcVPS->getMaxOpSets() - 1 ); opsIdx ++ )
    {
      // Operation point set
      for( UInt i = 0; i <= pcVPS->getMaxNuhReservedZeroLayerId(); i ++ )
      {
        // Only applicable for version 1
        // pcVPS->setLayerIdIncludedFlag( true, opsIdx, i );
        WRITE_FLAG( pcVPS->getLayerIdIncludedFlag( opsIdx, i ) ? 1 : 0, "layer_id_included_flag[opsIdx][i]" );
      }
    }
    const TimingInfo *timingInfo = pcVPS->getTimingInfo();
    WRITE_FLAG(timingInfo->getTimingInfoPresentFlag(),          "vps_timing_info_present_flag");
    if(timingInfo->getTimingInfoPresentFlag())
    {
      WRITE_CODE(timingInfo->getNumUnitsInTick(), 32,           "vps_num_units_in_tick");
      WRITE_CODE(timingInfo->getTimeScale(),      32,           "vps_time_scale");
      WRITE_FLAG(timingInfo->getPocProportionalToTimingFlag(),  "vps_poc_proportional_to_timing_flag");
      if(timingInfo->getPocProportionalToTimingFlag())
      {
        WRITE_UVLC(timingInfo->getNumTicksPocDiffOneMinus1(),   "vps_num_ticks_poc_diff_one_minus1");
      }
      WRITE_UVLC( pcVPS->getNumHrdParameters(),                 "vps_num_hrd_parameters" );
  
      if( pcVPS->getNumHrdParameters() > 0 )
      {
        for( UInt i = 0; i < pcVPS->getNumHrdParameters(); i ++ )
        {
          // Only applicable for version 1
          WRITE_UVLC( pcVPS->getHrdOpSetIdx( i ),                "hrd_layer_set_idx" );
          if( i > 0 )
          {
            WRITE_FLAG( pcVPS->getCprmsPresentFlag( i ) ? 1 : 0, "cprms_present_flag[i]" );
          }
          codeHrdParameters(pcVPS->getHrdParameters(i), pcVPS->getCprmsPresentFlag( i ), pcVPS->getMaxTLayers() - 1);
        }
      }
    }
    WRITE_FLAG( 0,                     "vps_extension_flag" );
  
    //future extensions here..
    xWriteRbspTrailingBits();
  }
  
  Void TEncCavlc::codeSliceHeader         ( TComSlice* pcSlice )
  {
  #if ENC_DEC_TRACE
    xTraceSliceHeader ();
  #endif
  
    const ChromaFormat format                = pcSlice->getSPS()->getChromaFormatIdc();
    const UInt         numberValidComponents = getNumberValidComponents(format);
    const Bool         chromaEnabled         = isChromaEnabled(format);
  
    //calculate number of bits required for slice address
    Int maxSliceSegmentAddress = pcSlice->getPic()->getNumberOfCtusInFrame();
    Int bitsSliceSegmentAddress = 0;
    while(maxSliceSegmentAddress>(1<<bitsSliceSegmentAddress))
    {
      bitsSliceSegmentAddress++;
    }
    const Int ctuTsAddress = pcSlice->getSliceSegmentCurStartCtuTsAddr();
  
    //write slice address
    const Int sliceSegmentRsAddress = pcSlice->getPic()->getPicSym()->getCtuTsToRsAddrMap(ctuTsAddress);
  
    WRITE_FLAG( sliceSegmentRsAddress==0, "first_slice_segment_in_pic_flag" );
    if ( pcSlice->getRapPicFlag() )
    {
      WRITE_FLAG( pcSlice->getNoOutputPriorPicsFlag() ? 1 : 0, "no_output_of_prior_pics_flag" );
    }
    WRITE_UVLC( pcSlice->getPPS()->getPPSId(), "slice_pic_parameter_set_id" );
    if ( pcSlice->getPPS()->getDependentSliceSegmentsEnabledFlag() && (sliceSegmentRsAddress!=0) )
    {
      WRITE_FLAG( pcSlice->getDependentSliceSegmentFlag() ? 1 : 0, "dependent_slice_segment_flag" );
    }
    if(sliceSegmentRsAddress>0)
    {
      WRITE_CODE( sliceSegmentRsAddress, bitsSliceSegmentAddress, "slice_segment_address" );
    }
    if ( !pcSlice->getDependentSliceSegmentFlag() )
    {
      for (Int i = 0; i < pcSlice->getPPS()->getNumExtraSliceHeaderBits(); i++)
      {
        WRITE_FLAG(0, "slice_reserved_flag[]");
      }
  
      WRITE_UVLC( pcSlice->getSliceType(),       "slice_type" );
  
      if( pcSlice->getPPS()->getOutputFlagPresentFlag() )
      {
        WRITE_FLAG( pcSlice->getPicOutputFlag() ? 1 : 0, "pic_output_flag" );
      }
  
      if( !pcSlice->getIdrPicFlag() )
      {
        Int picOrderCntLSB = (pcSlice->getPOC()-pcSlice->getLastIDR()+(1<<pcSlice->getSPS()->getBitsForPOC())) & ((1<<pcSlice->getSPS()->getBitsForPOC())-1);
        WRITE_CODE( picOrderCntLSB, pcSlice->getSPS()->getBitsForPOC(), "slice_pic_order_cnt_lsb");
        const TComReferencePictureSet* rps = pcSlice->getRPS();
  
        // check for bitstream restriction stating that:
        // If the current picture is a BLA or CRA picture, the value of NumPocTotalCurr shall be equal to 0.
        // Ideally this process should not be repeated for each slice in a picture
        if (pcSlice->isIRAP())
        {
          for (Int picIdx = 0; picIdx < rps->getNumberOfPictures(); picIdx++)
          {
            assert (!rps->getUsed(picIdx));
          }
        }
  
        if(pcSlice->getRPSidx() < 0)
        {
          WRITE_FLAG( 0, "short_term_ref_pic_set_sps_flag");
          codeShortTermRefPicSet( rps, true, pcSlice->getSPS()->getRPSList()->getNumberOfReferencePictureSets());
        }
        else
        {
          WRITE_FLAG( 1, "short_term_ref_pic_set_sps_flag");
          Int numBits = 0;
          while ((1 << numBits) < pcSlice->getSPS()->getRPSList()->getNumberOfReferencePictureSets())
          {
            numBits++;
          }
          if (numBits > 0)
          {
            WRITE_CODE( pcSlice->getRPSidx(), numBits, "short_term_ref_pic_set_idx" );
          }
        }
        if(pcSlice->getSPS()->getLongTermRefsPresent())
        {
          Int numLtrpInSH = rps->getNumberOfLongtermPictures();
          Int ltrpInSPS[MAX_NUM_REF_PICS];
          Int numLtrpInSPS = 0;
          UInt ltrpIndex;
          Int counter = 0;
          // WARNING: The following code only works only if a matching long-term RPS is 
          //          found in the SPS for ALL long-term pictures
          //          The problem is that the SPS coded long-term pictures are moved to the
          //          beginning of the list which causes a mismatch when no reference picture
          //          list reordering is used
          //          NB: Long-term coding is currently not supported in general by the HM encoder
          for(Int k = rps->getNumberOfPictures()-1; k > rps->getNumberOfPictures()-rps->getNumberOfLongtermPictures()-1; k--)
          {
            if (findMatchingLTRP(pcSlice, &ltrpIndex, rps->getPOC(k), rps->getUsed(k)))
            {
              ltrpInSPS[numLtrpInSPS] = ltrpIndex;
              numLtrpInSPS++;
            }
            else
            {
              counter++;
            }
          }
          numLtrpInSH -= numLtrpInSPS;
          // check that either all long-term pictures are coded in SPS or in slice header (no mixing)
          assert (numLtrpInSH==0 || numLtrpInSPS==0); 
  
          Int bitsForLtrpInSPS = 0;
          while (pcSlice->getSPS()->getNumLongTermRefPicSPS() > (1 << bitsForLtrpInSPS))
          {
            bitsForLtrpInSPS++;
          }
          if (pcSlice->getSPS()->getNumLongTermRefPicSPS() > 0)
          {
            WRITE_UVLC( numLtrpInSPS, "num_long_term_sps");
          }
          WRITE_UVLC( numLtrpInSH, "num_long_term_pics");
          // Note that the LSBs of the LT ref. pic. POCs must be sorted before.
          // Not sorted here because LT ref indices will be used in setRefPicList()
          Int prevDeltaMSB = 0, prevLSB = 0;
          Int offset = rps->getNumberOfNegativePictures() + rps->getNumberOfPositivePictures();
          counter = 0;
          // Warning: If some pictures are moved to ltrpInSPS, i is referring to a wrong index 
          //          (mapping would be required)
          for(Int i=rps->getNumberOfPictures()-1 ; i > offset-1; i--, counter++)
          {
            if (counter < numLtrpInSPS)
            {
              if (bitsForLtrpInSPS > 0)
              {
                WRITE_CODE( ltrpInSPS[counter], bitsForLtrpInSPS, "lt_idx_sps[i]");
              }
            }
            else
            {
              WRITE_CODE( rps->getPocLSBLT(i), pcSlice->getSPS()->getBitsForPOC(), "poc_lsb_lt");
              WRITE_FLAG( rps->getUsed(i), "used_by_curr_pic_lt_flag");
            }
            WRITE_FLAG( rps->getDeltaPocMSBPresentFlag(i), "delta_poc_msb_present_flag");
  
            if(rps->getDeltaPocMSBPresentFlag(i))
            {
              Bool deltaFlag = false;
              //  First LTRP from SPS                 ||  First LTRP from SH                              || curr LSB            != prev LSB
              if( (i == rps->getNumberOfPictures()-1) || (i == rps->getNumberOfPictures()-1-numLtrpInSPS) || (rps->getPocLSBLT(i) != prevLSB) )
              {
                deltaFlag = true;
              }
              if(deltaFlag)
              {
                WRITE_UVLC( rps->getDeltaPocMSBCycleLT(i), "delta_poc_msb_cycle_lt[i]" );
              }
              else
              {
                Int differenceInDeltaMSB = rps->getDeltaPocMSBCycleLT(i) - prevDeltaMSB;
                assert(differenceInDeltaMSB >= 0);
                WRITE_UVLC( differenceInDeltaMSB, "delta_poc_msb_cycle_lt[i]" );
              }
              prevLSB = rps->getPocLSBLT(i);
              prevDeltaMSB = rps->getDeltaPocMSBCycleLT(i);
            }
          }
        }
        if (pcSlice->getSPS()->getTMVPFlagsPresent())
        {
          WRITE_FLAG( pcSlice->getEnableTMVPFlag() ? 1 : 0, "slice_temporal_mvp_enabled_flag" );
        }
      }
      if(pcSlice->getSPS()->getUseSAO())
      {
         WRITE_FLAG( pcSlice->getSaoEnabledFlag(CHANNEL_TYPE_LUMA), "slice_sao_luma_flag" );
         if (chromaEnabled)
         {
           WRITE_FLAG( pcSlice->getSaoEnabledFlag(CHANNEL_TYPE_CHROMA), "slice_sao_chroma_flag" );
         }
      }
  
      //check if numrefidxes match the defaults. If not, override
  
      if (!pcSlice->isIntra())
      {
        Bool overrideFlag = (pcSlice->getNumRefIdx( REF_PIC_LIST_0 )!=pcSlice->getPPS()->getNumRefIdxL0DefaultActive()||(pcSlice->isInterB()&&pcSlice->getNumRefIdx( REF_PIC_LIST_1 )!=pcSlice->getPPS()->getNumRefIdxL1DefaultActive()));
        WRITE_FLAG( overrideFlag ? 1 : 0,                               "num_ref_idx_active_override_flag");
        if (overrideFlag)
        {
          WRITE_UVLC( pcSlice->getNumRefIdx( REF_PIC_LIST_0 ) - 1,      "num_ref_idx_l0_active_minus1" );
          if (pcSlice->isInterB())
          {
            WRITE_UVLC( pcSlice->getNumRefIdx( REF_PIC_LIST_1 ) - 1,    "num_ref_idx_l1_active_minus1" );
          }
          else
          {
            pcSlice->setNumRefIdx(REF_PIC_LIST_1, 0);
          }
        }
      }
      else
      {
        pcSlice->setNumRefIdx(REF_PIC_LIST_0, 0);
        pcSlice->setNumRefIdx(REF_PIC_LIST_1, 0);
      }
  
      if( pcSlice->getPPS()->getListsModificationPresentFlag() && pcSlice->getNumRpsCurrTempList() > 1)
      {
        TComRefPicListModification* refPicListModification = pcSlice->getRefPicListModification();
        if(!pcSlice->isIntra())
        {
          WRITE_FLAG(pcSlice->getRefPicListModification()->getRefPicListModificationFlagL0() ? 1 : 0,       "ref_pic_list_modification_flag_l0" );
          if (pcSlice->getRefPicListModification()->getRefPicListModificationFlagL0())
          {
            Int numRpsCurrTempList0 = pcSlice->getNumRpsCurrTempList();
            if (numRpsCurrTempList0 > 1)
            {
              Int length = 1;
              numRpsCurrTempList0 --;
              while ( numRpsCurrTempList0 >>= 1)
              {
                length ++;
              }
              for(Int i = 0; i < pcSlice->getNumRefIdx( REF_PIC_LIST_0 ); i++)
              {
                WRITE_CODE( refPicListModification->getRefPicSetIdxL0(i), length, "list_entry_l0");
              }
            }
          }
        }
        if(pcSlice->isInterB())
        {
          WRITE_FLAG(pcSlice->getRefPicListModification()->getRefPicListModificationFlagL1() ? 1 : 0,       "ref_pic_list_modification_flag_l1" );
          if (pcSlice->getRefPicListModification()->getRefPicListModificationFlagL1())
          {
            Int numRpsCurrTempList1 = pcSlice->getNumRpsCurrTempList();
            if ( numRpsCurrTempList1 > 1 )
            {
              Int length = 1;
              numRpsCurrTempList1 --;
              while ( numRpsCurrTempList1 >>= 1)
              {
                length ++;
              }
              for(Int i = 0; i < pcSlice->getNumRefIdx( REF_PIC_LIST_1 ); i++)
              {
                WRITE_CODE( refPicListModification->getRefPicSetIdxL1(i), length, "list_entry_l1");
              }
            }
          }
        }
      }
  
      if (pcSlice->isInterB())
      {
        WRITE_FLAG( pcSlice->getMvdL1ZeroFlag() ? 1 : 0,   "mvd_l1_zero_flag");
      }
  
      if(!pcSlice->isIntra())
      {
        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" );
        }
      }
  
      if ( pcSlice->getEnableTMVPFlag() )
      {
        if ( pcSlice->getSliceType() == B_SLICE )
        {
          WRITE_FLAG( pcSlice->getColFromL0Flag(), "collocated_from_l0_flag" );
        }
  
        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 );
      }
      assert(pcSlice->getMaxNumMergeCand()<=MRG_MAX_NUM_CANDS);
      if (!pcSlice->isIntra())
      {
        WRITE_UVLC(MRG_MAX_NUM_CANDS - pcSlice->getMaxNumMergeCand(), "five_minus_max_num_merge_cand");
      }
      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" );
        }
        assert(numberValidComponents <= COMPONENT_Cr+1);
      }
  
      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_disable_deblocking_filter_flag");
          if(!pcSlice->getDeblockingFilterDisable())
          {
            WRITE_SVLC (pcSlice->getDeblockingFilterBetaOffsetDiv2(), "slice_beta_offset_div2");
            WRITE_SVLC (pcSlice->getDeblockingFilterTcOffsetDiv2(),   "slice_tc_offset_div2");
          }
        }
      }
  
      Bool isSAOEnabled = pcSlice->getSPS()->getUseSAO() && (pcSlice->getSaoEnabledFlag(CHANNEL_TYPE_LUMA) || (chromaEnabled && pcSlice->getSaoEnabledFlag(CHANNEL_TYPE_CHROMA)));
      Bool isDBFEnabled = (!pcSlice->getDeblockingFilterDisable());
  
      if(pcSlice->getPPS()->getLoopFilterAcrossSlicesEnabledFlag() && ( isSAOEnabled || isDBFEnabled ))
      {
        WRITE_FLAG(pcSlice->getLFCrossSliceBoundaryFlag()?1:0, "slice_loop_filter_across_slices_enabled_flag");
      }
    }
    if(pcSlice->getPPS()->getSliceHeaderExtensionPresentFlag())
    {
      WRITE_UVLC(0,"slice_segment_header_extension_length");
    }
  }
  
  Void TEncCavlc::codePTL( const TComPTL* pcPTL, Bool profilePresentFlag, Int maxNumSubLayersMinus1)
  {
    if(profilePresentFlag)
    {
      codeProfileTier(pcPTL->getGeneralPTL(), false);    // general_...
    }
    WRITE_CODE( Int(pcPTL->getGeneralPTL()->getLevelIdc()), 8, "general_level_idc" );
  
    for (Int i = 0; i < maxNumSubLayersMinus1; i++)
    {
      WRITE_FLAG( pcPTL->getSubLayerProfilePresentFlag(i), "sub_layer_profile_present_flag[i]" );
      WRITE_FLAG( pcPTL->getSubLayerLevelPresentFlag(i),   "sub_layer_level_present_flag[i]" );
    }
  
    if (maxNumSubLayersMinus1 > 0)
    {
      for (Int i = maxNumSubLayersMinus1; i < 8; i++)
      {
        WRITE_CODE(0, 2, "reserved_zero_2bits");
      }
    }
  
    for(Int i = 0; i < maxNumSubLayersMinus1; i++)
    {
      if( pcPTL->getSubLayerProfilePresentFlag(i) )
      {
        codeProfileTier(pcPTL->getSubLayerPTL(i), true);  // sub_layer_...
      }
      if( pcPTL->getSubLayerLevelPresentFlag(i) )
      {
        WRITE_CODE( Int(pcPTL->getSubLayerPTL(i)->getLevelIdc()), 8, "sub_layer_level_idc[i]" );
      }
    }
  }
  
  #if ENC_DEC_TRACE || RExt__DECODER_DEBUG_BIT_STATISTICS
  Void TEncCavlc::codeProfileTier( const ProfileTierLevel* ptl, const Bool bIsSubLayer )
  #define PTL_TRACE_TEXT(txt) bIsSubLayer?("sub_layer_" txt) : ("general_" txt)
  #else
  Void TEncCavlc::codeProfileTier( const ProfileTierLevel* ptl, const Bool /*bIsSubLayer*/ )
  #define PTL_TRACE_TEXT(txt) txt
  #endif
  {
    WRITE_CODE( ptl->getProfileSpace(), 2 ,      PTL_TRACE_TEXT("profile_space"                   ));
    WRITE_FLAG( ptl->getTierFlag()==Level::HIGH, PTL_TRACE_TEXT("tier_flag"                       ));
    WRITE_CODE( Int(ptl->getProfileIdc()), 5 ,   PTL_TRACE_TEXT("profile_idc"                     ));
    for(Int j = 0; j < 32; j++)
    {
      WRITE_FLAG( ptl->getProfileCompatibilityFlag(j), PTL_TRACE_TEXT("profile_compatibility_flag[][j]" ));
    }
  
    WRITE_FLAG(ptl->getProgressiveSourceFlag(),   PTL_TRACE_TEXT("progressive_source_flag"         ));
    WRITE_FLAG(ptl->getInterlacedSourceFlag(),    PTL_TRACE_TEXT("interlaced_source_flag"          ));
    WRITE_FLAG(ptl->getNonPackedConstraintFlag(), PTL_TRACE_TEXT("non_packed_constraint_flag"      ));
    WRITE_FLAG(ptl->getFrameOnlyConstraintFlag(), PTL_TRACE_TEXT("frame_only_constraint_flag"      ));
  
    if (ptl->getProfileIdc() == Profile::MAINREXT || ptl->getProfileIdc() == Profile::HIGHTHROUGHPUTREXT )
    {
      const UInt         bitDepthConstraint=ptl->getBitDepthConstraint();
      WRITE_FLAG(bitDepthConstraint<=12,          PTL_TRACE_TEXT("max_12bit_constraint_flag"       ));
      WRITE_FLAG(bitDepthConstraint<=10,          PTL_TRACE_TEXT("max_10bit_constraint_flag"       ));
      WRITE_FLAG(bitDepthConstraint<= 8,          PTL_TRACE_TEXT("max_8bit_constraint_flag"        ));
      const ChromaFormat chromaFmtConstraint=ptl->getChromaFormatConstraint();
      WRITE_FLAG(chromaFmtConstraint==CHROMA_422||chromaFmtConstraint==CHROMA_420||chromaFmtConstraint==CHROMA_400, PTL_TRACE_TEXT("max_422chroma_constraint_flag" ));
      WRITE_FLAG(chromaFmtConstraint==CHROMA_420||chromaFmtConstraint==CHROMA_400,                                  PTL_TRACE_TEXT("max_420chroma_constraint_flag" ));
      WRITE_FLAG(chromaFmtConstraint==CHROMA_400,                                                                   PTL_TRACE_TEXT("max_monochrome_constraint_flag"));
      WRITE_FLAG(ptl->getIntraConstraintFlag(),          PTL_TRACE_TEXT("intra_constraint_flag"           ));
      WRITE_FLAG(ptl->getOnePictureOnlyConstraintFlag(), PTL_TRACE_TEXT("one_picture_only_constraint_flag"));
      WRITE_FLAG(ptl->getLowerBitRateConstraintFlag(),   PTL_TRACE_TEXT("lower_bit_rate_constraint_flag"  ));
      WRITE_CODE(0 , 16, PTL_TRACE_TEXT("reserved_zero_34bits[0..15]"     ));
      WRITE_CODE(0 , 16, PTL_TRACE_TEXT("reserved_zero_34bits[16..31]"    ));
      WRITE_CODE(0 ,  2, PTL_TRACE_TEXT("reserved_zero_34bits[32..33]"    ));
    }
    else
    {
      WRITE_CODE(0x0000 , 16, PTL_TRACE_TEXT("reserved_zero_43bits[0..15]"     ));
      WRITE_CODE(0x0000 , 16, PTL_TRACE_TEXT("reserved_zero_43bits[16..31]"    ));
      WRITE_CODE(0x000  , 11, PTL_TRACE_TEXT("reserved_zero_43bits[32..42]"    ));
    }
    WRITE_FLAG(false,   PTL_TRACE_TEXT("inbld_flag" ));
  #undef PTL_TRACE_TEXT
  }
  
  /**
   * Write tiles and wavefront substreams sizes for the slice header (entry points).
   *
   * \param pSlice TComSlice structure that contains the substream size information.
   */
  Void  TEncCavlc::codeTilesWPPEntryPoint( TComSlice* pSlice )
  {
    if (!pSlice->getPPS()->getTilesEnabledFlag() && !pSlice->getPPS()->getEntropyCodingSyncEnabledFlag())
    {
      return;
    }
    UInt maxOffset = 0;
    for(Int idx=0; idx<pSlice->getNumberOfSubstreamSizes(); idx++)
    {
      UInt offset=pSlice->getSubstreamSize(idx);
      if ( offset > maxOffset )
      {
        maxOffset = offset;
      }
    }
  
    // Determine number of bits "offsetLenMinus1+1" required for entry point information
    UInt offsetLenMinus1 = 0;
    while (maxOffset >= (1u << (offsetLenMinus1 + 1)))
    {
      offsetLenMinus1++;
      assert(offsetLenMinus1 + 1 < 32);
    }
  
    WRITE_UVLC(pSlice->getNumberOfSubstreamSizes(), "num_entry_point_offsets");
    if (pSlice->getNumberOfSubstreamSizes()>0)
    {
      WRITE_UVLC(offsetLenMinus1, "offset_len_minus1");
  
      for (UInt idx=0; idx<pSlice->getNumberOfSubstreamSizes(); idx++)
      {
        WRITE_CODE(pSlice->getSubstreamSize(idx)-1, offsetLenMinus1+1, "entry_point_offset_minus1");
      }
    }
  }
  
  Void TEncCavlc::codeTerminatingBit      ( UInt /*uilsLast*/ )
  {
  }
  
  Void TEncCavlc::codeSliceFinish ()
  {
  }
  
  Void TEncCavlc::codeMVPIdx ( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/, RefPicList /*eRefList*/ )
  {
    assert(0);
  }
  
  Void TEncCavlc::codePartSize( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/, UInt /*uiDepth*/ )
  {
    assert(0);
  }
  
  Void TEncCavlc::codePredMode( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/ )
  {
    assert(0);
  }
  
  Void TEncCavlc::codeMergeFlag    ( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/ )
  {
    assert(0);
  }
  
  Void TEncCavlc::codeMergeIndex    ( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/ )
  {
    assert(0);
  }
  
  Void TEncCavlc::codeInterModeFlag( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/, UInt /*uiDepth*/, UInt /*uiEncMode*/ )
  {
    assert(0);
  }
  
  Void TEncCavlc::codeCUTransquantBypassFlag( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/ )
  {
    assert(0);
  }
  
  Void TEncCavlc::codeSkipFlag( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/ )
  {
    assert(0);
  }
  
  Void TEncCavlc::codeSplitFlag   ( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/, UInt /*uiDepth*/ )
  {
    assert(0);
  }
  
  Void TEncCavlc::codeTransformSubdivFlag( UInt /*uiSymbol*/, UInt /*uiCtx*/ )
  {
    assert(0);
  }
  
  Void TEncCavlc::codeQtCbf( TComTU& /*rTu*/, const ComponentID /*compID*/, const Bool /*lowestLevel*/ )
  {
    assert(0);
  }
  
  Void TEncCavlc::codeQtRootCbf( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/ )
  {
    assert(0);
  }
  
  Void TEncCavlc::codeQtCbfZero( TComTU& /*rTu*/, const ChannelType /*chType*/ )
  {
    assert(0);
  }
  Void TEncCavlc::codeQtRootCbfZero( )
  {
    assert(0);
  }
  
  Void TEncCavlc::codeTransformSkipFlags (TComTU& /*rTu*/, ComponentID /*component*/ )
  {
    assert(0);
  }
  
  /** Code I_PCM information.
   * \param pcCU pointer to CU
   * \param uiAbsPartIdx CU index
   * \returns Void
   */
  Void TEncCavlc::codeIPCMInfo( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/ )
  {
    assert(0);
  }
  
  Void TEncCavlc::codeIntraDirLumaAng( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/, Bool /*isMultiple*/)
  {
    assert(0);
  }
  
  Void TEncCavlc::codeIntraDirChroma( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/ )
  {
    assert(0);
  }
  
  Void TEncCavlc::codeInterDir( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/ )
  {
    assert(0);
  }
  
  Void TEncCavlc::codeRefFrmIdx( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/, RefPicList /*eRefList*/ )
  {
    assert(0);
  }
  
  Void TEncCavlc::codeMvd( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/, RefPicList /*eRefList*/ )
  {
    assert(0);
  }
  
  Void TEncCavlc::codeCrossComponentPrediction( TComTU& /*rTu*/, ComponentID /*compID*/ )
  {
    assert(0);
  }
  
  Void TEncCavlc::codeDeltaQP( TComDataCU* pcCU, UInt uiAbsPartIdx )
  {
    Int iDQp  = pcCU->getQP( uiAbsPartIdx ) - pcCU->getRefQP( uiAbsPartIdx );
  
    Int qpBdOffsetY =  pcCU->getSlice()->getSPS()->getQpBDOffset(CHANNEL_TYPE_LUMA);
    iDQp = (iDQp + 78 + qpBdOffsetY + (qpBdOffsetY/2)) % (52 + qpBdOffsetY) - 26 - (qpBdOffsetY/2);
  
    xWriteSvlc( iDQp );
  
    return;
  }
  
  Void TEncCavlc::codeChromaQpAdjustment( TComDataCU* /*pcCU*/, UInt /*uiAbsPartIdx*/ )
  {
    assert(0);
  }
  
  Void TEncCavlc::codeCoeffNxN    ( TComTU& /*rTu*/, TCoeff* /*pcCoef*/, const ComponentID /*compID*/ )
  {
    assert(0);
  }
  
  Void TEncCavlc::estBit( estBitsSbacStruct* /*pcEstBitsCabac*/, Int /*width*/, Int /*height*/, ChannelType /*chType*/ )
  {
    // printf("error : no VLC mode support in this version\n");
    return;
  }
  
  // ====================================================================================================================
  // Protected member functions
  // ====================================================================================================================
  
  //! Code weighted prediction tables
  Void TEncCavlc::xCodePredWeightTable( TComSlice* pcSlice )
  {
    WPScalingParam  *wp;
    const ChromaFormat    format                = pcSlice->getPic()->getChromaFormat();
    const UInt            numberValidComponents = getNumberValidComponents(format);
    const Bool            bChroma               = isChromaEnabled(format);
    const Int             iNbRef                = (pcSlice->getSliceType() == B_SLICE ) ? (2) : (1);
          Bool            bDenomCoded           = false;
          UInt            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++ )
        {
          pcSlice->getWpScaling(eRefPicList, iRefIdx, wp);
          if ( !bDenomCoded )
          {
            Int iDeltaDenom;
            WRITE_UVLC( wp[COMPONENT_Y].uiLog2WeightDenom, "luma_log2_weight_denom" );
  
            if( bChroma )
            {
              assert(wp[COMPONENT_Cb].uiLog2WeightDenom == wp[COMPONENT_Cr].uiLog2WeightDenom); // check the channel-type settings are consistent across components.
              iDeltaDenom = (wp[COMPONENT_Cb].uiLog2WeightDenom - wp[COMPONENT_Y].uiLog2WeightDenom);
              WRITE_SVLC( iDeltaDenom, "delta_chroma_log2_weight_denom" );
            }
            bDenomCoded = true;
          }
          WRITE_FLAG( wp[COMPONENT_Y].bPresentFlag, iNumRef==0?"luma_weight_l0_flag[i]":"luma_weight_l1_flag[i]" );
          uiTotalSignalledWeightFlags += wp[COMPONENT_Y].bPresentFlag;
        }
        if (bChroma)
        {
          for ( Int iRefIdx=0 ; iRefIdx<pcSlice->getNumRefIdx(eRefPicList) ; iRefIdx++ )
          {
            pcSlice->getWpScaling(eRefPicList, iRefIdx, wp);
            assert(wp[COMPONENT_Cb].bPresentFlag == wp[COMPONENT_Cr].bPresentFlag); // check the channel-type settings are consistent across components.
            WRITE_FLAG( wp[COMPONENT_Cb].bPresentFlag, iNumRef==0?"chroma_weight_l0_flag[i]":"chroma_weight_l1_flag[i]" );
            uiTotalSignalledWeightFlags += 2*wp[COMPONENT_Cb].bPresentFlag;
          }
        }
  
        for ( Int iRefIdx=0 ; iRefIdx<pcSlice->getNumRefIdx(eRefPicList) ; iRefIdx++ )
        {
          pcSlice->getWpScaling(eRefPicList, iRefIdx, wp);
          if ( wp[COMPONENT_Y].bPresentFlag )
          {
            Int iDeltaWeight = (wp[COMPONENT_Y].iWeight - (1<<wp[COMPONENT_Y].uiLog2WeightDenom));
            WRITE_SVLC( iDeltaWeight, iNumRef==0?"delta_luma_weight_l0[i]":"delta_luma_weight_l1[i]" );
            WRITE_SVLC( wp[COMPONENT_Y].iOffset, iNumRef==0?"luma_offset_l0[i]":"luma_offset_l1[i]" );
          }
  
          if ( bChroma )
          {
            if ( wp[COMPONENT_Cb].bPresentFlag )
            {
              for ( Int j = COMPONENT_Cb ; j < numberValidComponents ; j++ )
              {
                assert(wp[COMPONENT_Cb].uiLog2WeightDenom == wp[COMPONENT_Cr].uiLog2WeightDenom);
                Int iDeltaWeight = (wp[j].iWeight - (1<<wp[COMPONENT_Cb].uiLog2WeightDenom));
                WRITE_SVLC( iDeltaWeight, iNumRef==0?"delta_chroma_weight_l0[i]":"delta_chroma_weight_l1[i]" );
  
                Int range=pcSlice->getSPS()->getSpsRangeExtension().getHighPrecisionOffsetsEnabledFlag() ? (1<<pcSlice->getSPS()->getBitDepth(CHANNEL_TYPE_CHROMA))/2 : 128;
                Int pred = ( range - ( ( range*wp[j].iWeight)>>(wp[j].uiLog2WeightDenom) ) );
                Int iDeltaChroma = (wp[j].iOffset - pred);
                WRITE_SVLC( iDeltaChroma, iNumRef==0?"delta_chroma_offset_l0[i]":"delta_chroma_offset_l1[i]" );
              }
            }
          }
        }
      }
      assert(uiTotalSignalledWeightFlags<=24);
    }
  }
  
  /** code quantization matrix
   *  \param scalingList quantization matrix information
   */
  Void TEncCavlc::codeScalingList( const TComScalingList &scalingList )
  {
    //for each size
    for(UInt sizeId = 0; sizeId < SCALING_LIST_SIZE_NUM; sizeId++)
    {
      const Int predListStep = (sizeId == SCALING_LIST_32x32? (SCALING_LIST_NUM/NUMBER_OF_PREDICTION_MODES) : 1); // if 32x32, skip over chroma entries.
  
      for(UInt listId = 0; listId < SCALING_LIST_NUM; listId+=predListStep)
      {
        Bool scalingListPredModeFlag = scalingList.getScalingListPredModeFlag(sizeId, listId);
        WRITE_FLAG( scalingListPredModeFlag, "scaling_list_pred_mode_flag" );
        if(!scalingListPredModeFlag)// Copy Mode
        {
          if (sizeId == SCALING_LIST_32x32)
          {
            // adjust the code, to cope with the missing chroma entries
            WRITE_UVLC( ((Int)listId - (Int)scalingList.getRefMatrixId (sizeId,listId)) / (SCALING_LIST_NUM/NUMBER_OF_PREDICTION_MODES), "scaling_list_pred_matrix_id_delta");
          }
          else
          {
            WRITE_UVLC( (Int)listId - (Int)scalingList.getRefMatrixId (sizeId,listId), "scaling_list_pred_matrix_id_delta");
          }
        }
        else// DPCM Mode
        {
          xCodeScalingList(&scalingList, sizeId, listId);
        }
      }
    }
    return;
  }
  /** code DPCM
   * \param scalingList quantization matrix information
   * \param sizeId      size index
   * \param listId      list index
   */
  Void TEncCavlc::xCodeScalingList(const TComScalingList* scalingList, UInt sizeId, UInt listId)
  {
    Int coefNum = min(MAX_MATRIX_COEF_NUM,(Int)g_scalingListSize[sizeId]);
    UInt* scan  = g_scanOrder[SCAN_UNGROUPED][SCAN_DIAG][sizeId==0 ? 2 : 3][sizeId==0 ? 2 : 3];
    Int nextCoef = SCALING_LIST_START_VALUE;
    Int data;
    const Int *src = scalingList->getScalingListAddress(sizeId, listId);
      if( sizeId > SCALING_LIST_8x8 )
      {
        WRITE_SVLC( scalingList->getScalingListDC(sizeId,listId) - 8, "scaling_list_dc_coef_minus8");
        nextCoef = scalingList->getScalingListDC(sizeId,listId);
      }
      for(Int i=0;i<coefNum;i++)
      {
        data = src[scan[i]] - nextCoef;
        nextCoef = src[scan[i]];
        if(data > 127)
        {
          data = data - 256;
        }
        if(data < -128)
        {
          data = data + 256;
        }
  
        WRITE_SVLC( data,  "scaling_list_delta_coef");
      }
  }
  Bool TEncCavlc::findMatchingLTRP ( TComSlice* pcSlice, UInt *ltrpsIndex, Int ltrpPOC, Bool usedFlag )
  {
    // Bool state = true, state2 = false;
    Int lsb = ltrpPOC & ((1<<pcSlice->getSPS()->getBitsForPOC())-1);
    for (Int k = 0; k < pcSlice->getSPS()->getNumLongTermRefPicSPS(); k++)
    {
      if ( (lsb == pcSlice->getSPS()->getLtRefPicPocLsbSps(k)) && (usedFlag == pcSlice->getSPS()->getUsedByCurrPicLtSPSFlag(k)) )
      {
        *ltrpsIndex = k;
        return true;
      }
    }
    return false;
  }
  
  Void TEncCavlc::codeExplicitRdpcmMode( TComTU& /*rTu*/, const ComponentID /*compID*/ )
   {
     assert(0);
   }
  
  //! \}
  