EncAppCfg.cpp

    {
      const uint32_t num = 1u<< m_toneMapTargetBitDepth;
      m_startOfCodedInterval = new int[num];
      for(uint32_t i=0; i<num; i++)
      {
        m_startOfCodedInterval[i] = cfg_startOfCodedInterval.values.size() > i ? cfg_startOfCodedInterval.values[i] : 0;
      }
    }
    else
    {
      m_startOfCodedInterval = NULL;
    }
    if( ( m_toneMapModelId == 3 ) && ( m_numPivots > 0 ) )
    {
      if( !cfg_codedPivotValue.values.empty() && !cfg_targetPivotValue.values.empty() )
      {
        m_codedPivotValue  = new int[m_numPivots];
        m_targetPivotValue = new int[m_numPivots];
        for(uint32_t i=0; i<m_numPivots; i++)
        {
          m_codedPivotValue[i]  = cfg_codedPivotValue.values.size()  > i ? cfg_codedPivotValue.values [i] : 0;
          m_targetPivotValue[i] = cfg_targetPivotValue.values.size() > i ? cfg_targetPivotValue.values[i] : 0;
        }
      }
    }
    else
    {
      m_codedPivotValue = NULL;
      m_targetPivotValue = NULL;
    }
  }

  if( m_kneeSEIEnabled && !m_kneeSEICancelFlag )
  {
    CHECK(!( m_kneeSEINumKneePointsMinus1 >= 0 && m_kneeSEINumKneePointsMinus1 < 999 ), "Inconsistent config");
    m_kneeSEIInputKneePoint  = new int[m_kneeSEINumKneePointsMinus1+1];
    m_kneeSEIOutputKneePoint = new int[m_kneeSEINumKneePointsMinus1+1];
    for(int i=0; i<(m_kneeSEINumKneePointsMinus1+1); i++)
    {
      m_kneeSEIInputKneePoint[i]  = cfg_kneeSEIInputKneePointValue.values.size()  > i ? cfg_kneeSEIInputKneePointValue.values[i]  : 1;
      m_kneeSEIOutputKneePoint[i] = cfg_kneeSEIOutputKneePointValue.values.size() > i ? cfg_kneeSEIOutputKneePointValue.values[i] : 0;
    }
  }

  if(m_timeCodeSEIEnabled)
  {
    for(int i = 0; i < m_timeCodeSEINumTs && i < MAX_TIMECODE_SEI_SETS; i++)
    {
      m_timeSetArray[i].clockTimeStampFlag    = cfg_timeCodeSeiTimeStampFlag        .values.size()>i ? cfg_timeCodeSeiTimeStampFlag        .values [i] : false;
      m_timeSetArray[i].numUnitFieldBasedFlag = cfg_timeCodeSeiNumUnitFieldBasedFlag.values.size()>i ? cfg_timeCodeSeiNumUnitFieldBasedFlag.values [i] : 0;
      m_timeSetArray[i].countingType          = cfg_timeCodeSeiCountingType         .values.size()>i ? cfg_timeCodeSeiCountingType         .values [i] : 0;
      m_timeSetArray[i].fullTimeStampFlag     = cfg_timeCodeSeiFullTimeStampFlag    .values.size()>i ? cfg_timeCodeSeiFullTimeStampFlag    .values [i] : 0;
      m_timeSetArray[i].discontinuityFlag     = cfg_timeCodeSeiDiscontinuityFlag    .values.size()>i ? cfg_timeCodeSeiDiscontinuityFlag    .values [i] : 0;
      m_timeSetArray[i].cntDroppedFlag        = cfg_timeCodeSeiCntDroppedFlag       .values.size()>i ? cfg_timeCodeSeiCntDroppedFlag       .values [i] : 0;
      m_timeSetArray[i].numberOfFrames        = cfg_timeCodeSeiNumberOfFrames       .values.size()>i ? cfg_timeCodeSeiNumberOfFrames       .values [i] : 0;
      m_timeSetArray[i].secondsValue          = cfg_timeCodeSeiSecondsValue         .values.size()>i ? cfg_timeCodeSeiSecondsValue         .values [i] : 0;
      m_timeSetArray[i].minutesValue          = cfg_timeCodeSeiMinutesValue         .values.size()>i ? cfg_timeCodeSeiMinutesValue         .values [i] : 0;
      m_timeSetArray[i].hoursValue            = cfg_timeCodeSeiHoursValue           .values.size()>i ? cfg_timeCodeSeiHoursValue           .values [i] : 0;
      m_timeSetArray[i].secondsFlag           = cfg_timeCodeSeiSecondsFlag          .values.size()>i ? cfg_timeCodeSeiSecondsFlag          .values [i] : 0;
      m_timeSetArray[i].minutesFlag           = cfg_timeCodeSeiMinutesFlag          .values.size()>i ? cfg_timeCodeSeiMinutesFlag          .values [i] : 0;
      m_timeSetArray[i].hoursFlag             = cfg_timeCodeSeiHoursFlag            .values.size()>i ? cfg_timeCodeSeiHoursFlag            .values [i] : 0;
      m_timeSetArray[i].timeOffsetLength      = cfg_timeCodeSeiTimeOffsetLength     .values.size()>i ? cfg_timeCodeSeiTimeOffsetLength     .values [i] : 0;
      m_timeSetArray[i].timeOffsetValue       = cfg_timeCodeSeiTimeOffsetValue      .values.size()>i ? cfg_timeCodeSeiTimeOffsetValue      .values [i] : 0;
    }
  }

  m_reshapeCW.binCW.resize(3);
  m_reshapeCW.rspFps = m_iFrameRate;
#if !JVET_O0432_LMCS_ENCODER
  m_reshapeCW.rspIntraPeriod = m_iIntraPeriod;
#endif
  m_reshapeCW.rspPicSize = m_iSourceWidth*m_iSourceHeight;
  m_reshapeCW.rspFpsToIp = std::max(16, 16 * (int)(round((double)m_iFrameRate /16.0)));
  m_reshapeCW.rspBaseQP = m_iQP;
#if JVET_O0432_LMCS_ENCODER
  m_reshapeCW.updateCtrl = m_updateCtrl;
  m_reshapeCW.adpOption = m_adpOption;
  m_reshapeCW.initialCW = m_initialCW;
#endif
#if ENABLE_TRACING
  g_trace_ctx = tracing_init(sTracingFile, sTracingRule);
  if( bTracingChannelsList && g_trace_ctx )
  {
    std::string sChannelsList;
    g_trace_ctx->getChannelsList( sChannelsList );
    msg( INFO, "\n Using tracing channels:\n\n%s\n", sChannelsList.c_str() );
  }
#endif

#if ENABLE_QPA
  if (m_bUsePerceptQPA && !m_bUseAdaptiveQP && m_dualTree && (m_cbQpOffsetDualTree != 0 || m_crQpOffsetDualTree != 0))
  {
    msg( WARNING, "*************************************************************************\n" );
    msg( WARNING, "* WARNING: chroma QPA on, ignoring nonzero dual-tree chroma QP offsets! *\n" );
    msg( WARNING, "*************************************************************************\n" );
  }

#if ENABLE_QPA_SUB_CTU
 #if QP_SWITCHING_FOR_PARALLEL
  if ((m_iQP < 38) && m_bUsePerceptQPA && !m_bUseAdaptiveQP && (m_iSourceWidth <= 2048) && (m_iSourceHeight <= 1280)
 #else
  if (((int)m_fQP < 38) && m_bUsePerceptQPA && !m_bUseAdaptiveQP && (m_iSourceWidth <= 2048) && (m_iSourceHeight <= 1280)
 #endif
#if MAX_TB_SIZE_SIGNALLING
      && ((1 << (m_log2MaxTbSize + 1)) == m_uiCTUSize) && (m_iSourceWidth > 512 || m_iSourceHeight > 320))
#else
    && ((1 << (MAX_TB_LOG2_SIZEY + 1)) == m_uiCTUSize) && (m_iSourceWidth > 512 || m_iSourceHeight > 320))
#endif
  {
    m_cuQpDeltaSubdiv = 2;
  }
#else
 #if QP_SWITCHING_FOR_PARALLEL
  if( ( m_iQP < 38 ) && ( m_iGOPSize > 4 ) && m_bUsePerceptQPA && !m_bUseAdaptiveQP && ( m_iSourceHeight <= 1280 ) && ( m_iSourceWidth <= 2048 ) )
 #else
  if( ( ( int ) m_fQP < 38 ) && ( m_iGOPSize > 4 ) && m_bUsePerceptQPA && !m_bUseAdaptiveQP && ( m_iSourceHeight <= 1280 ) && ( m_iSourceWidth <= 2048 ) )
 #endif
  {
    msg( WARNING, "*************************************************************************\n" );
    msg( WARNING, "* WARNING: QPA on with large CTU for <=HD sequences, limiting CTU size! *\n" );
    msg( WARNING, "*************************************************************************\n" );

    m_uiCTUSize = m_uiMaxCUWidth;
#if MAX_TB_SIZE_SIGNALLING
    if( ( 1u << m_log2MaxTbSize         ) > m_uiCTUSize ) m_log2MaxTbSize--;
#endif
  }
#endif
#endif // ENABLE_QPA

  const int minCuSize = 1 << MIN_CU_LOG2;
  m_uiMaxCodingDepth = 0;
  while( ( m_uiCTUSize >> m_uiMaxCodingDepth ) > minCuSize )
  {
    m_uiMaxCodingDepth++;
  }
  m_uiLog2DiffMaxMinCodingBlockSize = m_uiMaxCodingDepth;
  m_uiMaxCUWidth = m_uiMaxCUHeight = m_uiCTUSize;
  m_uiMaxCUDepth = m_uiMaxCodingDepth;

  // check validity of input parameters
  if( xCheckParameter() )
  {
    // return check failed
    return false;
  }

  // print-out parameters
  xPrintParameter();

  return true;
}


// ====================================================================================================================
// Private member functions
// ====================================================================================================================

bool EncAppCfg::xCheckParameter()
{
  msg( NOTICE, "\n" );
  if (m_decodedPictureHashSEIType==HASHTYPE_NONE)
  {
    msg( DETAILS, "******************************************************************\n");
    msg( DETAILS, "** WARNING: --SEIDecodedPictureHash is now disabled by default. **\n");
    msg( DETAILS, "**          Automatic verification of decoded pictures by a     **\n");
    msg( DETAILS, "**          decoder requires this option to be enabled.         **\n");
    msg( DETAILS, "******************************************************************\n");
  }
  if( m_profile==Profile::NONE )
  {
    msg( DETAILS, "***************************************************************************\n");
    msg( DETAILS, "** WARNING: For conforming bitstreams a valid Profile value must be set! **\n");
    msg( DETAILS, "***************************************************************************\n");
  }
  if( m_level==Level::NONE )
  {
    msg( DETAILS, "***************************************************************************\n");
    msg( DETAILS, "** WARNING: For conforming bitstreams a valid Level value must be set!   **\n");
    msg( DETAILS, "***************************************************************************\n");
  }

  bool check_failed = false; /* abort if there is a fatal configuration problem */
#define xConfirmPara(a,b) check_failed |= confirmPara(a,b)


  if( m_profile != Profile::NEXT )
  {
    THROW( "Next profile with an alternative partitioner has to be enabled if HEVC_USE_RQT is off!" );
#if ENABLE_WPP_PARALLELISM
    xConfirmPara( m_numWppThreads > 1, "WPP-style parallelization only supported with NEXT profile" );
#endif
    xConfirmPara( m_LMChroma, "LMChroma only allowed with NEXT profile" );
    xConfirmPara( m_ImvMode, "IMV is only allowed with NEXT profile" );
    xConfirmPara(m_IBCMode, "IBC Mode only allowed with NEXT profile");
    xConfirmPara( m_HashME, "Hash motion estimation only allowed with NEXT profile" );
    xConfirmPara( m_useFastLCTU, "Fast large CTU can only be applied when encoding with NEXT profile" );
    xConfirmPara( m_MTS, "MTS only allowed with NEXT profile" );
    xConfirmPara( m_MTSIntraMaxCand, "MTS only allowed with NEXT profile" );
    xConfirmPara( m_MTSInterMaxCand, "MTS only allowed with NEXT profile" );
    xConfirmPara( m_SMVD, "SMVD is only allowed with NEXT profile" );
    xConfirmPara( m_compositeRefEnabled, "Composite Reference Frame is only allowed with NEXT profile" );
    xConfirmPara( m_GBi, "GBi is only allowed with NEXT profile" );
    xConfirmPara( m_GBiFast, "GBiFast is only allowed with NEXT profile" );
    xConfirmPara( m_Triangle, "Triangle is only allowed with NEXT profile" );
    xConfirmPara(m_DMVR, "DMVR only allowed with NEXT profile");
    xConfirmPara(m_MmvdDisNum, "Number of distance MMVD entry setting only allowed with NEXT profile");
    xConfirmPara(m_RdpcmMode, "RDPCM only allowed with NEXT profile");
    // ADD_NEW_TOOL : (parameter check) add a check for next tools here
  }
  else
  {
    if( m_depQuantEnabledFlag )
    {
      xConfirmPara( !m_useRDOQ || !m_useRDOQTS, "RDOQ and RDOQTS must be equal to 1 if dependent quantization is enabled" );
      xConfirmPara( m_signDataHidingEnabledFlag, "SignHideFlag must be equal to 0 if dependent quantization is enabled" );
    }

  }

  if( m_wrapAround )
  {
    xConfirmPara( m_wrapAroundOffset <= m_uiCTUSize + (m_uiMaxCUWidth >> m_uiLog2DiffMaxMinCodingBlockSize), "Wrap-around offset must be greater than CtbSizeY + MinCbSize" );
    xConfirmPara( m_wrapAroundOffset > m_iSourceWidth, "Wrap-around offset must not be greater than the source picture width" );
    int minCUSize =  m_uiCTUSize >> m_uiLog2DiffMaxMinCodingBlockSize;
    xConfirmPara( m_wrapAroundOffset % minCUSize != 0, "Wrap-around offset must be an integer multiple of the specified minimum CU size" );
  }

#if ENABLE_SPLIT_PARALLELISM
  xConfirmPara( m_numSplitThreads < 1, "Number of used threads cannot be smaller than 1" );
  xConfirmPara( m_numSplitThreads > PARL_SPLIT_MAX_NUM_THREADS, "Number of used threads cannot be higher than the number of actual jobs" );
#if _MSC_VER && ENABLE_WPP_PARALLELISM
  xConfirmPara( m_numSplitThreads > 1 && m_numSplitThreads != NUM_SPLIT_THREADS_IF_MSVC, "Due to poor implementation by Microsoft, NumSplitThreads cannot be set dynamically on runtime!" );
#endif
#else
  xConfirmPara( m_numSplitThreads != 1, "ENABLE_SPLIT_PARALLELISM is disabled, numSplitThreads has to be 1" );
#endif

#if ENABLE_WPP_PARALLELISM
  xConfirmPara( m_numWppThreads < 1, "Number of threads used for WPP-style parallelization cannot be smaller than 1" );
  xConfirmPara( m_numWppThreads > PARL_WPP_MAX_NUM_THREADS, "Number of threads used for WPP-style parallelization cannot be bigger than PARL_WPP_MAX_NUM_THREADS" );
  xConfirmPara( !m_ensureWppBitEqual && m_numWppThreads > 1, "WPP bit equality is implied when using WPP-style parallelism" );
#if ENABLE_WPP_STATIC_LINK
  xConfirmPara( m_numWppExtraLines != 0, "WPP-style extra lines out of range" );
#else
  xConfirmPara( m_numWppExtraLines < 0, "WPP-style extra lines out of range" );
#endif
#else
  xConfirmPara( m_numWppThreads != 1, "ENABLE_WPP_PARALLELISM is disabled, numWppThreads has to be 1" );
  xConfirmPara( m_ensureWppBitEqual, "ENABLE_WPP_PARALLELISM is disabled, cannot ensure being WPP bit-equal" );
#endif


#if SHARP_LUMA_DELTA_QP && ENABLE_QPA
  xConfirmPara( m_bUsePerceptQPA && m_lumaLevelToDeltaQPMapping.mode >= 2, "QPA and SharpDeltaQP mode 2 cannot be used together" );
  if( m_bUsePerceptQPA && m_lumaLevelToDeltaQPMapping.mode == LUMALVL_TO_DQP_AVG_METHOD )
  {
    msg( WARNING, "*********************************************************************************\n" );
    msg( WARNING, "** WARNING: Applying custom luma-based QPA with activity-based perceptual QPA! **\n" );
    msg( WARNING, "*********************************************************************************\n" );

    m_lumaLevelToDeltaQPMapping.mode = LUMALVL_TO_DQP_NUM_MODES; // special QPA mode
  }
#endif


  xConfirmPara( m_useAMaxBT && !m_SplitConsOverrideEnabledFlag, "AMaxBt can only be used with PartitionConstriantsOverride enabled" );


  xConfirmPara(m_bitstreamFileName.empty(), "A bitstream file name must be specified (BitstreamFile)");
  const uint32_t maxBitDepth=(m_chromaFormatIDC==CHROMA_400) ? m_internalBitDepth[CHANNEL_TYPE_LUMA] : std::max(m_internalBitDepth[CHANNEL_TYPE_LUMA], m_internalBitDepth[CHANNEL_TYPE_CHROMA]);
  xConfirmPara(m_bitDepthConstraint<maxBitDepth, "The internalBitDepth must not be greater than the bitDepthConstraint value");
  xConfirmPara(m_chromaFormatConstraint<m_chromaFormatIDC, "The chroma format used must not be greater than the chromaFormatConstraint value");

  if (m_profile==Profile::MAINREXT || m_profile==Profile::HIGHTHROUGHPUTREXT)
  {
    xConfirmPara(m_lowerBitRateConstraintFlag==false && m_intraConstraintFlag==false, "The lowerBitRateConstraint flag cannot be false when intraConstraintFlag is false");
    xConfirmPara(m_cabacBypassAlignmentEnabledFlag && m_profile!=Profile::HIGHTHROUGHPUTREXT, "AlignCABACBeforeBypass must not be enabled unless the high throughput profile is being used.");
    if (m_profile == Profile::MAINREXT)
    {
      const uint32_t intraIdx = m_intraConstraintFlag ? 1:0;
      const uint32_t bitDepthIdx = (m_bitDepthConstraint == 8 ? 0 : (m_bitDepthConstraint ==10 ? 1 : (m_bitDepthConstraint == 12 ? 2 : (m_bitDepthConstraint == 16 ? 3 : 4 ))));
      const uint32_t chromaFormatIdx = uint32_t(m_chromaFormatConstraint);
      const bool bValidProfile = (bitDepthIdx > 3 || chromaFormatIdx>3) ? false : (validRExtProfileNames[intraIdx][bitDepthIdx][chromaFormatIdx] != NONE);
      xConfirmPara(!bValidProfile, "Invalid intra constraint flag, bit depth constraint flag and chroma format constraint flag combination for a RExt profile");
      const bool bUsingGeneralRExtTools  = m_transformSkipRotationEnabledFlag        ||
                                           m_transformSkipContextEnabledFlag         ||
                                           m_rdpcmEnabledFlag[RDPCM_SIGNAL_IMPLICIT] ||
                                           m_rdpcmEnabledFlag[RDPCM_SIGNAL_EXPLICIT] ||
                                           !m_enableIntraReferenceSmoothing          ||
                                           m_persistentRiceAdaptationEnabledFlag     ||
                                           m_log2MaxTransformSkipBlockSize!=2;
      const bool bUsingChromaQPTool      = m_cuChromaQpOffsetSubdiv >= 0;
      const bool bUsingExtendedPrecision = m_extendedPrecisionProcessingFlag;

      xConfirmPara((m_chromaFormatConstraint==CHROMA_420 || m_chromaFormatConstraint==CHROMA_400) && bUsingChromaQPTool, "CU Chroma QP adjustment cannot be used for 4:0:0 or 4:2:0 RExt profiles");
      xConfirmPara(m_bitDepthConstraint != 16 && bUsingExtendedPrecision, "Extended precision can only be used in 16-bit RExt profiles");
      if (!(m_chromaFormatConstraint == CHROMA_400 && m_bitDepthConstraint == 16) && m_chromaFormatConstraint!=CHROMA_444)
      {
        xConfirmPara(bUsingGeneralRExtTools, "Combination of tools and profiles are not possible in the specified RExt profile.");
      }
      xConfirmPara( m_onePictureOnlyConstraintFlag && m_chromaFormatConstraint!=CHROMA_444, "chroma format constraint must be 4:4:4 when one-picture-only constraint flag is 1");
      xConfirmPara( m_onePictureOnlyConstraintFlag && m_bitDepthConstraint != 8 && m_bitDepthConstraint != 16, "bit depth constraint must be 8 or 16 when one-picture-only constraint flag is 1");
      xConfirmPara( m_onePictureOnlyConstraintFlag && m_framesToBeEncoded > 1, "Number of frames to be encoded must be 1 when one-picture-only constraint flag is 1.");

      if (!m_intraConstraintFlag && m_bitDepthConstraint==16 && m_chromaFormatConstraint==CHROMA_444)
      {
        msg( WARNING, "********************************************************************************************************\n");
        msg( WARNING, "** WARNING: The RExt constraint flags describe a non standard combination (used for development only) **\n");
        msg( WARNING, "********************************************************************************************************\n");
      }
    }
    else
    {
      xConfirmPara( m_chromaFormatConstraint != CHROMA_444, "chroma format constraint must be 4:4:4 in the High Throughput 4:4:4 16-bit Intra profile.");
      xConfirmPara( m_bitDepthConstraint     != 16,         "bit depth constraint must be 4:4:4 in the High Throughput 4:4:4 16-bit Intra profile.");
      xConfirmPara( m_intraConstraintFlag    != 1,          "intra constraint flag must be 1 in the High Throughput 4:4:4 16-bit Intra profile.");
    }
  }
  else
  {
    xConfirmPara(m_bitDepthConstraint!=((m_profile==Profile::MAIN10 || m_profile==Profile::NEXT)?10:8), "BitDepthConstraint must be 8 for MAIN profile and 10 for MAIN10 profile.");
    xConfirmPara(m_chromaFormatConstraint!=CHROMA_420 && m_profile!=Profile::NEXT, "ChromaFormatConstraint must be 420 for non main-RExt and non-Next profiles.");
    xConfirmPara(m_intraConstraintFlag==true, "IntraConstraintFlag must be false for non main_RExt profiles.");
    xConfirmPara(m_lowerBitRateConstraintFlag==false, "LowerBitrateConstraintFlag must be true for non main-RExt profiles.");
    xConfirmPara(m_profile == Profile::MAINSTILLPICTURE && m_framesToBeEncoded > 1, "Number of frames to be encoded must be 1 when main still picture profile is used.");

    xConfirmPara(m_crossComponentPredictionEnabledFlag==true, "CrossComponentPrediction must not be used for non main-RExt profiles.");
    xConfirmPara(m_log2MaxTransformSkipBlockSize>=6, "Transform Skip Log2 Max Size must be less or equal to 5.");
    xConfirmPara(m_transformSkipRotationEnabledFlag==true, "UseResidualRotation must not be enabled for non main-RExt profiles.");
    xConfirmPara(m_transformSkipContextEnabledFlag==true, "UseSingleSignificanceMapContext must not be enabled for non main-RExt profiles.");
    xConfirmPara(m_rdpcmEnabledFlag[RDPCM_SIGNAL_IMPLICIT]==true, "ImplicitResidualDPCM must not be enabled for non main-RExt profiles.");
    xConfirmPara(m_rdpcmEnabledFlag[RDPCM_SIGNAL_EXPLICIT]==true, "ExplicitResidualDPCM must not be enabled for non main-RExt profiles.");
    xConfirmPara(m_persistentRiceAdaptationEnabledFlag==true, "GolombRiceParameterAdaption must not be enabled for non main-RExt profiles.");
    xConfirmPara(m_extendedPrecisionProcessingFlag==true, "UseExtendedPrecision must not be enabled for non main-RExt profiles.");
    xConfirmPara(m_highPrecisionOffsetsEnabledFlag==true, "UseHighPrecisionPredictionWeighting must not be enabled for non main-RExt profiles.");
    xConfirmPara(m_enableIntraReferenceSmoothing==false, "EnableIntraReferenceSmoothing must be enabled for non main-RExt profiles.");
    xConfirmPara(m_cabacBypassAlignmentEnabledFlag, "AlignCABACBeforeBypass cannot be enabled for non main-RExt profiles.");
  }


  // check range of parameters
  xConfirmPara( m_inputBitDepth[CHANNEL_TYPE_LUMA  ] < 8,                                   "InputBitDepth must be at least 8" );
  xConfirmPara( m_inputBitDepth[CHANNEL_TYPE_CHROMA] < 8,                                   "InputBitDepthC must be at least 8" );

#if !RExt__HIGH_BIT_DEPTH_SUPPORT
  if (m_extendedPrecisionProcessingFlag)
  {
    for (uint32_t channelType = 0; channelType < MAX_NUM_CHANNEL_TYPE; channelType++)
    {
      xConfirmPara((m_internalBitDepth[channelType] > 8) , "Model is not configured to support high enough internal accuracies - enable RExt__HIGH_BIT_DEPTH_SUPPORT to use increased precision internal data types etc...");
    }
  }
  else
  {
    for (uint32_t channelType = 0; channelType < MAX_NUM_CHANNEL_TYPE; channelType++)
    {
      xConfirmPara((m_internalBitDepth[channelType] > 12) , "Model is not configured to support high enough internal accuracies - enable RExt__HIGH_BIT_DEPTH_SUPPORT to use increased precision internal data types etc...");
    }
  }
#endif

  xConfirmPara( (m_MSBExtendedBitDepth[CHANNEL_TYPE_LUMA  ] < m_inputBitDepth[CHANNEL_TYPE_LUMA  ]), "MSB-extended bit depth for luma channel (--MSBExtendedBitDepth) must be greater than or equal to input bit depth for luma channel (--InputBitDepth)" );
  xConfirmPara( (m_MSBExtendedBitDepth[CHANNEL_TYPE_CHROMA] < m_inputBitDepth[CHANNEL_TYPE_CHROMA]), "MSB-extended bit depth for chroma channel (--MSBExtendedBitDepthC) must be greater than or equal to input bit depth for chroma channel (--InputBitDepthC)" );

  xConfirmPara( m_log2SaoOffsetScale[CHANNEL_TYPE_LUMA]   > (m_internalBitDepth[CHANNEL_TYPE_LUMA  ]<10?0:(m_internalBitDepth[CHANNEL_TYPE_LUMA  ]-10)), "SaoLumaOffsetBitShift must be in the range of 0 to InternalBitDepth-10, inclusive");
  xConfirmPara( m_log2SaoOffsetScale[CHANNEL_TYPE_CHROMA] > (m_internalBitDepth[CHANNEL_TYPE_CHROMA]<10?0:(m_internalBitDepth[CHANNEL_TYPE_CHROMA]-10)), "SaoChromaOffsetBitShift must be in the range of 0 to InternalBitDepthC-10, inclusive");

  xConfirmPara( m_chromaFormatIDC >= NUM_CHROMA_FORMAT,                                     "ChromaFormatIDC must be either 400, 420, 422 or 444" );
  std::string sTempIPCSC="InputColourSpaceConvert must be empty, "+getListOfColourSpaceConverts(true);
  xConfirmPara( m_inputColourSpaceConvert >= NUMBER_INPUT_COLOUR_SPACE_CONVERSIONS,         sTempIPCSC.c_str() );
  xConfirmPara( m_InputChromaFormatIDC >= NUM_CHROMA_FORMAT,                                "InputChromaFormatIDC must be either 400, 420, 422 or 444" );
  xConfirmPara( m_iFrameRate <= 0,                                                          "Frame rate must be more than 1" );
  xConfirmPara( m_temporalSubsampleRatio < 1,                                               "Temporal subsample rate must be no less than 1" );
  xConfirmPara( m_framesToBeEncoded <= 0,                                                   "Total Number Of Frames encoded must be more than 0" );
  xConfirmPara( m_framesToBeEncoded < m_switchPOC,                                          "debug POC out of range" );

  xConfirmPara( m_iGOPSize < 1 ,                                                            "GOP Size must be greater or equal to 1" );
  xConfirmPara( m_iGOPSize > 1 &&  m_iGOPSize % 2,                                          "GOP Size must be a multiple of 2, if GOP Size is greater than 1" );
  xConfirmPara( (m_iIntraPeriod > 0 && m_iIntraPeriod < m_iGOPSize) || m_iIntraPeriod == 0, "Intra period must be more than GOP size, or -1 , not 0" );
  xConfirmPara( m_iDecodingRefreshType < 0 || m_iDecodingRefreshType > 3,                   "Decoding Refresh Type must be comprised between 0 and 3 included" );
  if(m_iDecodingRefreshType == 3)
  {
    xConfirmPara( !m_recoveryPointSEIEnabled,                                               "When using RecoveryPointSEI messages as RA points, recoveryPointSEI must be enabled" );
  }

  if (m_isField)
  {
    if (!m_pictureTimingSEIEnabled)
    {
      msg( WARNING, "****************************************************************************\n");
      msg( WARNING, "** WARNING: Picture Timing SEI should be enabled for field coding!        **\n");
      msg( WARNING, "****************************************************************************\n");
    }
  }

  if(m_crossComponentPredictionEnabledFlag && (m_chromaFormatIDC != CHROMA_444))
  {
    msg( WARNING, "****************************************************************************\n");
    msg( WARNING, "** WARNING: Cross-component prediction is specified for 4:4:4 format only **\n");
    msg( WARNING, "****************************************************************************\n");

    m_crossComponentPredictionEnabledFlag = false;
  }

  if ( m_CUTransquantBypassFlagForce && m_bUseHADME )
  {
    msg( WARNING, "****************************************************************************\n");
    msg( WARNING, "** WARNING: --HadamardME has been disabled due to the enabling of         **\n");
    msg( WARNING, "**          --CUTransquantBypassFlagForce                                 **\n");
    msg( WARNING, "****************************************************************************\n");

    m_bUseHADME = false; // this has been disabled so that the lambda is calculated slightly differently for lossless modes (as a result of JCTVC-R0104).
  }

  xConfirmPara (m_log2MaxTransformSkipBlockSize < 2, "Transform Skip Log2 Max Size must be at least 2 (4x4)");


  if( m_SubPuMvpMode == 3 && m_maxNumMergeCand < 7 )
  {
    msg( WARNING, "****************************************************************************\n" );
    msg( WARNING, "** WARNING: Allowing less than 7 merge candidates, although both          **\n" );
    msg( WARNING, "**          advanced sup-pu temporal merging modes are enabled.           **\n" );
    msg( WARNING, "****************************************************************************\n" );
  }
  else if( m_SubPuMvpMode != 0 && m_maxNumMergeCand < 6 )
  {
    msg( WARNING, "****************************************************************************\n" );
    msg( WARNING, "** WARNING: Allowing less than 6 merge candidates, although               **\n" );
    msg( WARNING, "**          an advanced sup-pu temporal merging mode is enabled.          **\n" );
    msg( WARNING, "****************************************************************************\n" );
  }
  xConfirmPara( m_iQP < -6 * (m_internalBitDepth[CHANNEL_TYPE_LUMA] - 8) || m_iQP > MAX_QP, "QP exceeds supported range (-QpBDOffsety to 63)" );
#if W0038_DB_OPT
  xConfirmPara( m_deblockingFilterMetric!=0 && (m_bLoopFilterDisable || m_loopFilterOffsetInPPS), "If DeblockingFilterMetric is non-zero then both LoopFilterDisable and LoopFilterOffsetInPPS must be 0");
#else
  xConfirmPara( m_DeblockingFilterMetric && (m_bLoopFilterDisable || m_loopFilterOffsetInPPS), "If DeblockingFilterMetric is true then both LoopFilterDisable and LoopFilterOffsetInPPS must be 0");
#endif
  xConfirmPara( m_loopFilterBetaOffsetDiv2 < -6 || m_loopFilterBetaOffsetDiv2 > 6,          "Loop Filter Beta Offset div. 2 exceeds supported range (-6 to 6)" );
  xConfirmPara( m_loopFilterTcOffsetDiv2 < -6 || m_loopFilterTcOffsetDiv2 > 6,              "Loop Filter Tc Offset div. 2 exceeds supported range (-6 to 6)" );
  xConfirmPara( m_iSearchRange < 0 ,                                                        "Search Range must be more than 0" );
  xConfirmPara( m_bipredSearchRange < 0 ,                                                   "Bi-prediction refinement search range must be more than 0" );
  xConfirmPara( m_minSearchWindow < 0,                                                      "Minimum motion search window size for the adaptive window ME must be greater than or equal to 0" );
  xConfirmPara( m_iMaxDeltaQP > MAX_DELTA_QP,                                               "Absolute Delta QP exceeds supported range (0 to 7)" );
#if ENABLE_QPA
  xConfirmPara( m_bUsePerceptQPA && m_uiDeltaQpRD > 0,                                      "Perceptual QPA cannot be used together with slice-level multiple-QP optimization" );
#endif
#if SHARP_LUMA_DELTA_QP
  xConfirmPara( m_lumaLevelToDeltaQPMapping.mode && m_uiDeltaQpRD > 0,                      "Luma-level-based Delta QP cannot be used together with slice level multiple-QP optimization\n" );
#endif
  if (m_lumaLevelToDeltaQPMapping.mode && m_lumaReshapeEnable)
  {
    msg(WARNING, "For HDR-PQ, reshaper should be used mutual-exclusively with Luma-level-based Delta QP. If use luma DQP, turn reshaper off.\n");
    m_lumaReshapeEnable = false;
  }
  if (!m_lumaReshapeEnable)
  {
    m_reshapeSignalType = RESHAPE_SIGNAL_NULL;
    m_intraCMD = 0;
  }
  if (m_lumaReshapeEnable && m_reshapeSignalType == RESHAPE_SIGNAL_PQ)
  {
    m_intraCMD = 1;
  }
#if JVET_O0432_LMCS_ENCODER
  else if (m_lumaReshapeEnable && (m_reshapeSignalType == RESHAPE_SIGNAL_SDR || m_reshapeSignalType == RESHAPE_SIGNAL_HLG))
#else
  else if (m_lumaReshapeEnable && m_reshapeSignalType == RESHAPE_SIGNAL_SDR)
#endif
  {
    m_intraCMD = 0;
  }
  else
  {
    m_lumaReshapeEnable = false;
  }
#if JVET_O0432_LMCS_ENCODER
  if (m_lumaReshapeEnable)
  {
    xConfirmPara(m_updateCtrl < 0, "Min. LMCS Update Control is 0");
    xConfirmPara(m_updateCtrl > 2, "Max. LMCS Update Control is 2");
    xConfirmPara(m_adpOption < 0, "Min. LMCS Adaptation Option is 0");
    xConfirmPara(m_adpOption > 4, "Max. LMCS Adaptation Option is 4");
    xConfirmPara(m_initialCW < 0, "Min. Initial Total Codeword is 0");
    xConfirmPara(m_initialCW > 1023, "Max. Initial Total Codeword is 1023");
    if (m_updateCtrl > 0 && m_adpOption > 2) { m_adpOption -= 2; }
  }
#endif

  xConfirmPara( m_cbQpOffset < -12,   "Min. Chroma Cb QP Offset is -12" );
  xConfirmPara( m_cbQpOffset >  12,   "Max. Chroma Cb QP Offset is  12" );
  xConfirmPara( m_crQpOffset < -12,   "Min. Chroma Cr QP Offset is -12" );
  xConfirmPara( m_crQpOffset >  12,   "Max. Chroma Cr QP Offset is  12" );
  xConfirmPara( m_cbQpOffsetDualTree < -12,   "Min. Chroma Cb QP Offset for dual tree is -12" );
  xConfirmPara( m_cbQpOffsetDualTree >  12,   "Max. Chroma Cb QP Offset for dual tree is  12" );
  xConfirmPara( m_crQpOffsetDualTree < -12,   "Min. Chroma Cr QP Offset for dual tree is -12" );
  xConfirmPara( m_crQpOffsetDualTree >  12,   "Max. Chroma Cr QP Offset for dual tree is  12" );
  xConfirmPara( m_cbCrQpOffset < -12,         "Min. Joint Cb-Cr QP Offset is -12" );
  xConfirmPara( m_cbCrQpOffset >  12,         "Max. Joint Cb-Cr QP Offset is  12" );
  xConfirmPara( m_cbCrQpOffsetDualTree < -12, "Min. Joint Cb-Cr QP Offset for dual tree is -12" );
  xConfirmPara( m_cbCrQpOffsetDualTree >  12, "Max. Joint Cb-Cr QP Offset for dual tree is  12" );

  xConfirmPara( m_iQPAdaptationRange <= 0,                                                  "QP Adaptation Range must be more than 0" );
  if (m_iDecodingRefreshType == 2)
  {
    xConfirmPara( m_iIntraPeriod > 0 && m_iIntraPeriod <= m_iGOPSize ,                      "Intra period must be larger than GOP size for periodic IDR pictures");
  }
  xConfirmPara( m_uiMaxCUDepth > MAX_CU_DEPTH,                                              "MaxPartitionDepth exceeds predefined MAX_CU_DEPTH limit");
  xConfirmPara( m_uiMaxCUWidth > MAX_CU_SIZE,                                               "MaxCUWith exceeds predefined MAX_CU_SIZE limit");

  xConfirmPara( m_uiMinQT[0] < 1<<MIN_CU_LOG2,                                              "Minimum QT size should be larger than or equal to 4");
  xConfirmPara( m_uiMinQT[1] < 1<<MIN_CU_LOG2,                                              "Minimum QT size should be larger than or equal to 4");
  xConfirmPara( m_uiCTUSize < 16,                                                           "Maximum partition width size should be larger than or equal to 16");
  xConfirmPara( m_uiCTUSize < 16,                                                           "Maximum partition height size should be larger than or equal to 16");
  xConfirmPara( (m_iSourceWidth  % (1<<MIN_CU_LOG2))!=0,                                    "Resulting coded frame width must be a multiple of the minimum unit size");
  xConfirmPara( (m_iSourceHeight % (1<<MIN_CU_LOG2))!=0,                                    "Resulting coded frame height must be a multiple of the minimum unit size");
  xConfirmPara( (m_iSourceWidth  % (1<<MIN_CU_LOG2))!=0,                                    "Resulting coded frame width must be a multiple of the minimum unit size");
  xConfirmPara( (m_iSourceHeight % (1<<MIN_CU_LOG2))!=0,                                    "Resulting coded frame height must be a multiple of the minimum unit size");
  xConfirmPara( (m_iSourceWidth  % (1<<MIN_CU_LOG2))!=0,                                    "Resulting coded frame width must be a multiple of the minimum unit size");
  xConfirmPara( (m_iSourceHeight % (1<<MIN_CU_LOG2))!=0,                                    "Resulting coded frame height must be a multiple of the minimum unit size");
  xConfirmPara( m_uiMaxCUDepth < 1,                                                         "MaxPartitionDepth must be greater than zero");
  xConfirmPara( (m_uiMaxCUWidth  >> m_uiMaxCUDepth) < 4,                                    "Minimum partition width size should be larger than or equal to 8");
  xConfirmPara( (m_uiMaxCUHeight >> m_uiMaxCUDepth) < 4,                                    "Minimum partition height size should be larger than or equal to 8");
  xConfirmPara( m_uiMaxCUWidth < 16,                                                        "Maximum partition width size should be larger than or equal to 16");
  xConfirmPara( m_uiMaxCUHeight < 16,                                                       "Maximum partition height size should be larger than or equal to 16");
  xConfirmPara( (m_iSourceWidth  % (m_uiMaxCUWidth  >> (m_uiMaxCUDepth-1)))!=0,             "Resulting coded frame width must be a multiple of the minimum CU size");
  xConfirmPara( (m_iSourceHeight % (m_uiMaxCUHeight >> (m_uiMaxCUDepth-1)))!=0,             "Resulting coded frame height must be a multiple of the minimum CU size");

#if MAX_TB_SIZE_SIGNALLING
  xConfirmPara( m_log2MaxTbSize > 6, "Log2MaxTbSize must be 6 or smaller." );
#endif
#if JVET_O0545_MAX_TB_SIGNALLING
  xConfirmPara( m_log2MaxTbSize < 5,  "Log2MaxTbSize must be 5 or greater." );
#endif
  xConfirmPara( m_maxNumMergeCand < 1,  "MaxNumMergeCand must be 1 or greater.");
  xConfirmPara( m_maxNumMergeCand > MRG_MAX_NUM_CANDS, "MaxNumMergeCand must be no more than MRG_MAX_NUM_CANDS." );
  xConfirmPara( m_maxNumTriangleCand > TRIANGLE_MAX_NUM_UNI_CANDS, "MaxNumTriangleCand must be no more than TRIANGLE_MAX_NUM_UNI_CANDS." );
  xConfirmPara( m_maxNumTriangleCand > m_maxNumMergeCand, "MaxNumTriangleCand must be no more than MaxNumMergeCand." );
  xConfirmPara( 0 < m_maxNumTriangleCand && m_maxNumTriangleCand < 2, "MaxNumTriangleCand must be no less than 2 unless MaxNumTriangleCand is 0." );

  xConfirmPara( m_maxNumAffineMergeCand < 1, "MaxNumAffineMergeCand must be 1 or greater." );
  xConfirmPara( m_maxNumAffineMergeCand > AFFINE_MRG_MAX_NUM_CANDS, "MaxNumAffineMergeCand must be no more than AFFINE_MRG_MAX_NUM_CANDS." );
  if ( m_Affine == 0 )
  {
    m_maxNumAffineMergeCand = m_SubPuMvpMode;
  }

  xConfirmPara( m_MTS < 0 || m_MTS > 3, "MTS must be greater than 0 smaller than 4" );
  xConfirmPara( m_MTSIntraMaxCand < 0 || m_MTSIntraMaxCand > 5, "m_MTSIntraMaxCand must be greater than 0 and smaller than 6" );
  xConfirmPara( m_MTSInterMaxCand < 0 || m_MTSInterMaxCand > 5, "m_MTSInterMaxCand must be greater than 0 and smaller than 6" );
  xConfirmPara( m_MTS != 0 && m_MTSImplicit != 0, "Both explicit and implicit MTS cannot be enabled at the same time" );
  if( m_usePCM)
  {
    for (uint32_t channelType = 0; channelType < MAX_NUM_CHANNEL_TYPE; channelType++)
    {
      xConfirmPara(((m_MSBExtendedBitDepth[channelType] > m_internalBitDepth[channelType]) && m_bPCMInputBitDepthFlag), "PCM bit depth cannot be greater than internal bit depth (PCMInputBitDepthFlag cannot be used when InputBitDepth or MSBExtendedBitDepth > InternalBitDepth)");
    }
    xConfirmPara(  m_uiPCMLog2MinSize < 3,                                      "PCMLog2MinSize must be 3 or greater.");
    xConfirmPara(  m_uiPCMLog2MinSize > 5,                                      "PCMLog2MinSize must be 5 or smaller.");
    xConfirmPara(  m_pcmLog2MaxSize > 5,                                        "PCMLog2MaxSize must be 5 or smaller.");
    xConfirmPara(  m_pcmLog2MaxSize < m_uiPCMLog2MinSize,                       "PCMLog2MaxSize must be equal to or greater than m_uiPCMLog2MinSize.");
  }

  if (m_sliceMode!=NO_SLICES)
  {
    xConfirmPara( m_sliceArgument < 1 ,         "SliceArgument should be larger than or equal to 1" );
  }


  bool tileFlag = (m_numTileColumnsMinus1 > 0 || m_numTileRowsMinus1 > 0 );
  if (m_profile!=Profile::HIGHTHROUGHPUTREXT)
  {
    xConfirmPara( tileFlag && m_entropyCodingSyncEnabledFlag, "Tiles and entropy-coding-sync (Wavefronts) can not be applied together, except in the High Throughput Intra 4:4:4 16 profile");
  }

  xConfirmPara( m_iSourceWidth  % SPS::getWinUnitX(m_chromaFormatIDC) != 0, "Picture width must be an integer multiple of the specified chroma subsampling");
  xConfirmPara( m_iSourceHeight % SPS::getWinUnitY(m_chromaFormatIDC) != 0, "Picture height must be an integer multiple of the specified chroma subsampling");

  xConfirmPara( m_aiPad[0] % SPS::getWinUnitX(m_chromaFormatIDC) != 0, "Horizontal padding must be an integer multiple of the specified chroma subsampling");
  xConfirmPara( m_aiPad[1] % SPS::getWinUnitY(m_chromaFormatIDC) != 0, "Vertical padding must be an integer multiple of the specified chroma subsampling");

  xConfirmPara( m_confWinLeft   % SPS::getWinUnitX(m_chromaFormatIDC) != 0, "Left conformance window offset must be an integer multiple of the specified chroma subsampling");
  xConfirmPara( m_confWinRight  % SPS::getWinUnitX(m_chromaFormatIDC) != 0, "Right conformance window offset must be an integer multiple of the specified chroma subsampling");
  xConfirmPara( m_confWinTop    % SPS::getWinUnitY(m_chromaFormatIDC) != 0, "Top conformance window offset must be an integer multiple of the specified chroma subsampling");
  xConfirmPara( m_confWinBottom % SPS::getWinUnitY(m_chromaFormatIDC) != 0, "Bottom conformance window offset must be an integer multiple of the specified chroma subsampling");


  // max CU width and height should be power of 2
  uint32_t ui = m_uiMaxCUWidth;
  while(ui)
  {
    ui >>= 1;
    if( (ui & 1) == 1)
    {
      xConfirmPara( ui != 1 , "Width should be 2^n");
    }
  }
  ui = m_uiMaxCUHeight;
  while(ui)
  {
    ui >>= 1;
    if( (ui & 1) == 1)
    {
      xConfirmPara( ui != 1 , "Height should be 2^n");
    }
  }

  /* if this is an intra-only sequence, ie IntraPeriod=1, don't verify the GOP structure
   * This permits the ability to omit a GOP structure specification */
  if (m_iIntraPeriod == 1 && m_GOPList[0].m_POC == -1)
  {
    m_GOPList[0] = GOPEntry();
    m_GOPList[0].m_QPFactor = 1;
    m_GOPList[0].m_betaOffsetDiv2 = 0;
    m_GOPList[0].m_tcOffsetDiv2 = 0;
    m_GOPList[0].m_POC = 1;
    m_RPLList0[0] = RPLEntry();
    m_RPLList1[0] = RPLEntry();
    m_RPLList0[0].m_POC = m_RPLList1[0].m_POC = 1;
    m_RPLList0[0].m_numRefPicsActive = 4;
    m_GOPList[0].m_numRefPicsActive0 = 4;
  }
  else
  {
    xConfirmPara( m_intraConstraintFlag, "IntraConstraintFlag cannot be 1 for inter sequences");
  }

  int multipleFactor = m_compositeRefEnabled ? 2 : 1;
  bool verifiedGOP=false;
  bool errorGOP=false;
  int checkGOP=1;
  int numRefs = m_isField ? 2 : 1;
  int refList[MAX_NUM_REF_PICS+1];
  refList[0]=0;
  if(m_isField)
  {
    refList[1] = 1;
  }
  bool isOK[MAX_GOP];
  for(int i=0; i<MAX_GOP; i++)
  {
    isOK[i]=false;
  }
  int numOK=0;
  xConfirmPara( m_iIntraPeriod >=0&&(m_iIntraPeriod%m_iGOPSize!=0), "Intra period must be a multiple of GOPSize, or -1" );

  for(int i=0; i<m_iGOPSize; i++)
  {
    if (m_GOPList[i].m_POC == m_iGOPSize * multipleFactor)
    {
      xConfirmPara( m_GOPList[i].m_temporalId!=0 , "The last frame in each GOP must have temporal ID = 0 " );
    }
  }

  if ( (m_iIntraPeriod != 1) && !m_loopFilterOffsetInPPS && (!m_bLoopFilterDisable) )
  {
    for(int i=0; i<m_iGOPSize; i++)
    {
      xConfirmPara( (m_GOPList[i].m_betaOffsetDiv2 + m_loopFilterBetaOffsetDiv2) < -6 || (m_GOPList[i].m_betaOffsetDiv2 + m_loopFilterBetaOffsetDiv2) > 6, "Loop Filter Beta Offset div. 2 for one of the GOP entries exceeds supported range (-6 to 6)" );
      xConfirmPara( (m_GOPList[i].m_tcOffsetDiv2 + m_loopFilterTcOffsetDiv2) < -6 || (m_GOPList[i].m_tcOffsetDiv2 + m_loopFilterTcOffsetDiv2) > 6, "Loop Filter Tc Offset div. 2 for one of the GOP entries exceeds supported range (-6 to 6)" );
    }
  }

#if W0038_CQP_ADJ
  for(int i=0; i<m_iGOPSize; i++)
  {
    xConfirmPara( abs(m_GOPList[i].m_CbQPoffset               ) > 12, "Cb QP Offset for one of the GOP entries exceeds supported range (-12 to 12)" );
    xConfirmPara( abs(m_GOPList[i].m_CbQPoffset + m_cbQpOffset) > 12, "Cb QP Offset for one of the GOP entries, when combined with the PPS Cb offset, exceeds supported range (-12 to 12)" );
    xConfirmPara( abs(m_GOPList[i].m_CrQPoffset               ) > 12, "Cr QP Offset for one of the GOP entries exceeds supported range (-12 to 12)" );
    xConfirmPara( abs(m_GOPList[i].m_CrQPoffset + m_crQpOffset) > 12, "Cr QP Offset for one of the GOP entries, when combined with the PPS Cr offset, exceeds supported range (-12 to 12)" );
  }
  xConfirmPara( abs(m_sliceChromaQpOffsetIntraOrPeriodic[0]                 ) > 12, "Intra/periodic Cb QP Offset exceeds supported range (-12 to 12)" );
  xConfirmPara( abs(m_sliceChromaQpOffsetIntraOrPeriodic[0]  + m_cbQpOffset ) > 12, "Intra/periodic Cb QP Offset, when combined with the PPS Cb offset, exceeds supported range (-12 to 12)" );
  xConfirmPara( abs(m_sliceChromaQpOffsetIntraOrPeriodic[1]                 ) > 12, "Intra/periodic Cr QP Offset exceeds supported range (-12 to 12)" );
  xConfirmPara( abs(m_sliceChromaQpOffsetIntraOrPeriodic[1]  + m_crQpOffset ) > 12, "Intra/periodic Cr QP Offset, when combined with the PPS Cr offset, exceeds supported range (-12 to 12)" );
#endif

  int extraRPLs = 0;
  //start looping through frames in coding order until we can verify that the GOP structure is correct.
  while (!verifiedGOP && !errorGOP)
  {
    int curGOP = (checkGOP - 1) % m_iGOPSize;
    int curPOC = ((checkGOP - 1) / m_iGOPSize)*m_iGOPSize * multipleFactor + m_RPLList0[curGOP].m_POC;
    if (m_RPLList0[curGOP].m_POC < 0 || m_RPLList1[curGOP].m_POC < 0)
    {
      msg(WARNING, "\nError: found fewer Reference Picture Sets than GOPSize\n");
      errorGOP = true;
    }
    else
    {
      //check that all reference pictures are available, or have a POC < 0 meaning they might be available in the next GOP.
      bool beforeI = false;
      for (int i = 0; i< m_RPLList0[curGOP].m_numRefPics; i++)
      {
        int absPOC = curPOC - m_RPLList0[curGOP].m_deltaRefPics[i];
        if (absPOC < 0)
        {
          beforeI = true;
        }
        else
        {
          bool found = false;
          for (int j = 0; j<numRefs; j++)
          {
            if (refList[j] == absPOC)
            {
              found = true;
              for (int k = 0; k<m_iGOPSize; k++)
              {
                if (absPOC % (m_iGOPSize * multipleFactor) == m_RPLList0[k].m_POC % (m_iGOPSize * multipleFactor))
                {
                  if (m_RPLList0[k].m_temporalId == m_RPLList0[curGOP].m_temporalId)
                  {
                    m_RPLList0[k].m_refPic = true;
                  }
                }
              }
            }
          }
          if (!found)
          {
            msg(WARNING, "\nError: ref pic %d is not available for GOP frame %d\n", m_RPLList0[curGOP].m_deltaRefPics[i], curGOP + 1);
            errorGOP = true;
          }
        }
      }
      if (!beforeI && !errorGOP)
      {
        //all ref frames were present
        if (!isOK[curGOP])
        {
          numOK++;
          isOK[curGOP] = true;
          if (numOK == m_iGOPSize)
          {
            verifiedGOP = true;
          }
        }
      }
      else
      {
        //create a new RPLEntry for this frame containing all the reference pictures that were available (POC > 0)
        m_RPLList0[m_iGOPSize + extraRPLs] = m_RPLList0[curGOP];
        m_RPLList1[m_iGOPSize + extraRPLs] = m_RPLList1[curGOP];
        int newRefs0 = 0;
        for (int i = 0; i< m_RPLList0[curGOP].m_numRefPics; i++)
        {
          int absPOC = curPOC - m_RPLList0[curGOP].m_deltaRefPics[i];
          if (absPOC >= 0)
          {
            m_RPLList0[m_iGOPSize + extraRPLs].m_deltaRefPics[newRefs0] = m_RPLList0[curGOP].m_deltaRefPics[i];
            newRefs0++;
          }
        }
        int numPrefRefs0 = m_RPLList0[curGOP].m_numRefPicsActive;

        int newRefs1 = 0;
        for (int i = 0; i< m_RPLList1[curGOP].m_numRefPics; i++)
        {
          int absPOC = curPOC - m_RPLList1[curGOP].m_deltaRefPics[i];
          if (absPOC >= 0)
          {
            m_RPLList1[m_iGOPSize + extraRPLs].m_deltaRefPics[newRefs1] = m_RPLList1[curGOP].m_deltaRefPics[i];
            newRefs1++;
          }
        }
        int numPrefRefs1 = m_RPLList1[curGOP].m_numRefPicsActive;

        for (int offset = -1; offset>-checkGOP; offset--)
        {
          //step backwards in coding order and include any extra available pictures we might find useful to replace the ones with POC < 0.
          int offGOP = (checkGOP - 1 + offset) % m_iGOPSize;
          int offPOC = ((checkGOP - 1 + offset) / m_iGOPSize)*(m_iGOPSize * multipleFactor) + m_RPLList0[offGOP].m_POC;
          if (offPOC >= 0 && m_RPLList0[offGOP].m_temporalId <= m_RPLList0[curGOP].m_temporalId)
          {
            bool newRef = false;
            for (int i = 0; i<(newRefs0 + newRefs1); i++)
            {
              if (refList[i] == offPOC)
              {
                newRef = true;
              }
            }
            for (int i = 0; i<newRefs0; i++)
            {
              if (m_RPLList0[m_iGOPSize + extraRPLs].m_deltaRefPics[i] == curPOC - offPOC)
              {
                newRef = false;
              }
            }
            if (newRef)
            {
              int insertPoint = newRefs0;
              //this picture can be added, find appropriate place in list and insert it.
              if (m_RPLList0[offGOP].m_temporalId == m_RPLList0[curGOP].m_temporalId)
              {
                m_RPLList0[offGOP].m_refPic = true;
              }
              for (int j = 0; j<newRefs0; j++)
              {
                if (m_RPLList0[m_iGOPSize + extraRPLs].m_deltaRefPics[j] > curPOC - offPOC && curPOC - offPOC > 0)
                {
                  insertPoint = j;
                  break;
                }
              }
              int prev = curPOC - offPOC;
              for (int j = insertPoint; j<newRefs0 + 1; j++)
              {
                int newPrev = m_RPLList0[m_iGOPSize + extraRPLs].m_deltaRefPics[j];
                m_RPLList0[m_iGOPSize + extraRPLs].m_deltaRefPics[j] = prev;
                prev = newPrev;
              }
              newRefs0++;
            }
          }
          if (newRefs0 >= numPrefRefs0)
          {
            break;
          }
        }

        for (int offset = -1; offset>-checkGOP; offset--)
        {
          //step backwards in coding order and include any extra available pictures we might find useful to replace the ones with POC < 0.
          int offGOP = (checkGOP - 1 + offset) % m_iGOPSize;
          int offPOC = ((checkGOP - 1 + offset) / m_iGOPSize)*(m_iGOPSize * multipleFactor) + m_RPLList1[offGOP].m_POC;
          if (offPOC >= 0 && m_RPLList1[offGOP].m_temporalId <= m_RPLList1[curGOP].m_temporalId)
          {
            bool newRef = false;
            for (int i = 0; i<(newRefs0 + newRefs1); i++)
            {
              if (refList[i] == offPOC)
              {
                newRef = true;
              }
            }
            for (int i = 0; i<newRefs1; i++)
            {
              if (m_RPLList1[m_iGOPSize + extraRPLs].m_deltaRefPics[i] == curPOC - offPOC)
              {
                newRef = false;
              }
            }
            if (newRef)
            {
              int insertPoint = newRefs1;
              //this picture can be added, find appropriate place in list and insert it.
              if (m_RPLList1[offGOP].m_temporalId == m_RPLList1[curGOP].m_temporalId)
              {
                m_RPLList1[offGOP].m_refPic = true;
              }
              for (int j = 0; j<newRefs1; j++)
              {
                if (m_RPLList1[m_iGOPSize + extraRPLs].m_deltaRefPics[j] > curPOC - offPOC && curPOC - offPOC > 0)
                {
                  insertPoint = j;
                  break;
                }
              }
              int prev = curPOC - offPOC;
              for (int j = insertPoint; j<newRefs1 + 1; j++)
              {
                int newPrev = m_RPLList1[m_iGOPSize + extraRPLs].m_deltaRefPics[j];
                m_RPLList1[m_iGOPSize + extraRPLs].m_deltaRefPics[j] = prev;
                prev = newPrev;
              }
              newRefs1++;
            }
          }
          if (newRefs1 >= numPrefRefs1)
          {
            break;
          }
        }

        m_RPLList0[m_iGOPSize + extraRPLs].m_numRefPics = newRefs0;
        m_RPLList0[m_iGOPSize + extraRPLs].m_numRefPicsActive = min(m_RPLList0[m_iGOPSize + extraRPLs].m_numRefPics, m_RPLList0[m_iGOPSize + extraRPLs].m_numRefPicsActive);
        m_RPLList1[m_iGOPSize + extraRPLs].m_numRefPics = newRefs1;
        m_RPLList1[m_iGOPSize + extraRPLs].m_numRefPicsActive = min(m_RPLList1[m_iGOPSize + extraRPLs].m_numRefPics, m_RPLList1[m_iGOPSize + extraRPLs].m_numRefPicsActive);
        curGOP = m_iGOPSize + extraRPLs;
        extraRPLs++;
      }
      numRefs = 0;
      for (int i = 0; i< m_RPLList0[curGOP].m_numRefPics; i++)
      {
        int absPOC = curPOC - m_RPLList0[curGOP].m_deltaRefPics[i];
        if (absPOC >= 0)
        {
          refList[numRefs] = absPOC;
          numRefs++;
        }
      }
      for (int i = 0; i< m_RPLList1[curGOP].m_numRefPics; i++)
      {
        int absPOC = curPOC - m_RPLList1[curGOP].m_deltaRefPics[i];
        if (absPOC >= 0)
        {
          bool alreadyExist = false;
          for (int j = 0; !alreadyExist && j < numRefs; j++)
          {
            if (refList[j] == absPOC)
            {
              alreadyExist = true;
            }
          }
          if (!alreadyExist)
          {
            refList[numRefs] = absPOC;
            numRefs++;
          }
        }
      }
      refList[numRefs] = curPOC;
      numRefs++;
    }
    checkGOP++;
  }
  xConfirmPara(errorGOP, "Invalid GOP structure given");

  m_maxTempLayer = 1;

  for(int i=0; i<m_iGOPSize; i++)
  {
    if(m_GOPList[i].m_temporalId >= m_maxTempLayer)
    {
      m_maxTempLayer = m_GOPList[i].m_temporalId+1;
    }
    xConfirmPara(m_GOPList[i].m_sliceType!='B' && m_GOPList[i].m_sliceType!='P' && m_GOPList[i].m_sliceType!='I', "Slice type must be equal to B or P or I");
  }
  for(int i=0; i<MAX_TLAYER; i++)
  {
    m_numReorderPics[i] = 0;
    m_maxDecPicBuffering[i] = 1;
  }
  for(int i=0; i<m_iGOPSize; i++)
  {
    int numRefPic = m_RPLList0[i].m_numRefPics;
    for (int tmp = 0; tmp < m_RPLList1[i].m_numRefPics; tmp++)
    {
      bool notSame = true;
      for (int jj = 0; notSame && jj < m_RPLList0[i].m_numRefPics; jj++)
      {
        if (m_RPLList1[i].m_deltaRefPics[tmp] == m_RPLList0[i].m_deltaRefPics[jj]) notSame = false;
      }
      if (notSame) numRefPic++;
    }
    if (numRefPic + 1 > m_maxDecPicBuffering[m_GOPList[i].m_temporalId])
    {
      m_maxDecPicBuffering[m_GOPList[i].m_temporalId] = numRefPic + 1;
    }
    int highestDecodingNumberWithLowerPOC = 0;
    for(int j=0; j<m_iGOPSize; j++)
    {
      if(m_GOPList[j].m_POC <= m_GOPList[i].m_POC)
      {
        highestDecodingNumberWithLowerPOC = j;
      }
    }
    int numReorder = 0;
    for(int j=0; j<highestDecodingNumberWithLowerPOC; j++)
    {
      if(m_GOPList[j].m_temporalId <= m_GOPList[i].m_temporalId &&
        m_GOPList[j].m_POC > m_GOPList[i].m_POC)
      {
        numReorder++;
      }
    }
    if(numReorder > m_numReorderPics[m_GOPList[i].m_temporalId])
    {
      m_numReorderPics[m_GOPList[i].m_temporalId] = numReorder;
    }
  }

  for(int i=0; i<MAX_TLAYER-1; i++)
  {
    // a lower layer can not have higher value of m_numReorderPics than a higher layer
    if(m_numReorderPics[i+1] < m_numReorderPics[i])
    {
      m_numReorderPics[i+1] = m_numReorderPics[i];
    }
    // the value of num_reorder_pics[ i ] shall be in the range of 0 to max_dec_pic_buffering[ i ] - 1, inclusive
    if(m_numReorderPics[i] > m_maxDecPicBuffering[i] - 1)
    {
      m_maxDecPicBuffering[i] = m_numReorderPics[i] + 1;
    }
    // a lower layer can not have higher value of m_uiMaxDecPicBuffering than a higher layer
    if(m_maxDecPicBuffering[i+1] < m_maxDecPicBuffering[i])
    {
      m_maxDecPicBuffering[i+1] = m_maxDecPicBuffering[i];
    }
  }

  // the value of num_reorder_pics[ i ] shall be in the range of 0 to max_dec_pic_buffering[ i ] -  1, inclusive
  if(m_numReorderPics[MAX_TLAYER-1] > m_maxDecPicBuffering[MAX_TLAYER-1] - 1)
  {
    m_maxDecPicBuffering[MAX_TLAYER-1] = m_numReorderPics[MAX_TLAYER-1] + 1;
  }