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) 2010-2021, 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
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   * 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     EncLib.cpp
      \brief    encoder class
  */
  #include "EncLib.h"
  
  #include "EncModeCtrl.h"
  #include "AQp.h"
  #include "EncCu.h"
  
  #include "CommonLib/Picture.h"
  #include "CommonLib/CommonDef.h"
  #include "CommonLib/ChromaFormat.h"
  #include "EncLibCommon.h"
  #include "CommonLib/ProfileLevelTier.h"
  
  //! \ingroup EncoderLib
  //! \{
  
  // ====================================================================================================================
  // Constructor / destructor / create / destroy
  // ====================================================================================================================
  
  EncLib::EncLib( EncLibCommon* encLibCommon )
    : m_cListPic( encLibCommon->getPictureBuffer() )
    , m_cEncALF( encLibCommon->getApsIdStart() )
    , m_spsMap( encLibCommon->getSpsMap() )
    , m_ppsMap( encLibCommon->getPpsMap() )
    , m_apsMap( encLibCommon->getApsMap() )
    , m_AUWriterIf( nullptr )
  #if JVET_J0090_MEMORY_BANDWITH_MEASURE
    , m_cacheModel()
  #endif
    , m_lmcsAPS(nullptr)
    , m_scalinglistAPS( nullptr )
    , m_doPlt( true )
    , m_vps( encLibCommon->getVPS() )
    , m_layerDecPicBuffering( encLibCommon->getDecPicBuffering() )
  {
    m_iPOCLast          = -1;
    m_iNumPicRcvd       =  0;
    m_uiNumAllPicCoded  =  0;
  
    m_iMaxRefPicNum     = 0;
  
  #if ENABLE_SIMD_OPT_BUFFER
    g_pelBufOP.initPelBufOpsX86();
  #endif
  
  #if JVET_O0756_CALCULATE_HDRMETRICS
    m_metricTime = std::chrono::milliseconds(0);
  #endif
  
    memset(m_apss, 0, sizeof(m_apss));
  
    m_layerId = NOT_VALID;
    m_picIdInGOP = NOT_VALID;
  }
  
  EncLib::~EncLib()
  {
  }
  
  void EncLib::create( const int layerId )
  {
    m_layerId = layerId;
    m_iPOCLast = m_compositeRefEnabled ? -2 : -1;
    // create processing unit classes
    m_cGOPEncoder.        create( );
    m_cCuEncoder.         create( this );
  #if JVET_J0090_MEMORY_BANDWITH_MEASURE
    m_cInterSearch.cacheAssign( &m_cacheModel );
  #endif
  
    m_deblockingFilter.create(floorLog2(m_maxCUWidth) - MIN_CU_LOG2);
  
    if (!m_deblockingFilterDisable && m_encDbOpt)
    {
      m_deblockingFilter.initEncPicYuvBuffer(m_chromaFormatIDC, Size(getSourceWidth(), getSourceHeight()), getMaxCUWidth());
    }
  
    if (m_lmcsEnabled)
    {
      m_cReshaper.createEnc( getSourceWidth(), getSourceHeight(), m_maxCUWidth, m_maxCUHeight, m_bitDepth[COMPONENT_Y]);
    }
    if ( m_RCEnableRateControl )
    {
      m_cRateCtrl.init(m_framesToBeEncoded, m_RCTargetBitrate, (int)((double)m_iFrameRate / m_temporalSubsampleRatio + 0.5), m_iGOPSize, m_sourceWidth, m_sourceHeight,
        m_maxCUWidth, m_maxCUHeight, getBitDepth(CHANNEL_TYPE_LUMA), m_RCKeepHierarchicalBit, m_RCUseLCUSeparateModel, m_GOPList);
    }
  
  }
  
  void EncLib::destroy ()
  {
    // destroy processing unit classes
    m_cGOPEncoder.        destroy();
    m_cSliceEncoder.      destroy();
    m_cCuEncoder.         destroy();
    if( m_alf )
    {
      m_cEncALF.destroy();
    }
    m_cEncSAO.            destroyEncData();
    m_cEncSAO.            destroy();
    m_deblockingFilter.   destroy();
    m_cRateCtrl.          destroy();
    m_cReshaper.          destroy();
    m_cInterSearch.       destroy();
    m_cIntraSearch.       destroy();
  
    return;
  }
  
  void EncLib::init(AUWriterIf *auWriterIf)
  {
    m_AUWriterIf = auWriterIf;
  
    SPS &sps0 = *(m_spsMap.allocatePS( m_vps->getGeneralLayerIdx( m_layerId ) )); // NOTE: implementations that use more than 1 SPS need to be aware of activation issues.
    PPS &pps0 = *( m_ppsMap.allocatePS( m_vps->getGeneralLayerIdx( m_layerId ) ) );
    APS &aps0 = *( m_apsMap.allocatePS( SCALING_LIST_APS ) );
    aps0.setAPSId( 0 );
    aps0.setAPSType( SCALING_LIST_APS );
  
    if (getAvoidIntraInDepLayer() && getNumRefLayers(m_vps->getGeneralLayerIdx( getLayerId())) > 0)
    {
      setIDRRefParamListPresent(true);
    }
    // initialize SPS
    xInitSPS( sps0 );
  
    for( int i = 0; i < MAX_TLAYER; i++ )
    {
      m_layerDecPicBuffering[m_layerId * MAX_TLAYER + i] = m_maxDecPicBuffering[i];
    }
  
    xInitVPS( sps0 );
    xInitOPI(m_opi);
    xInitDCI(m_dci, sps0);
  
    if (getUseCompositeRef() || getDependentRAPIndicationSEIEnabled())
    {
      sps0.setLongTermRefsPresent(true);
    }
  
  #if U0132_TARGET_BITS_SATURATION
    if (m_RCCpbSaturationEnabled)
    {
      m_cRateCtrl.initHrdParam(sps0.getGeneralHrdParameters(), sps0.getOlsHrdParameters(), m_iFrameRate, m_RCInitialCpbFullness);
    }
  #endif
    m_cRdCost.setCostMode ( m_costMode );
  
    // initialize PPS
    pps0.setPicWidthInLumaSamples( m_sourceWidth );
    pps0.setPicHeightInLumaSamples( m_sourceHeight );
    if (pps0.getPicWidthInLumaSamples() == sps0.getMaxPicWidthInLumaSamples() && pps0.getPicHeightInLumaSamples() == sps0.getMaxPicHeightInLumaSamples())
    {
      pps0.setConformanceWindow( sps0.getConformanceWindow() );
      pps0.setConformanceWindowFlag( false );
    }
    else
    {
      pps0.setConformanceWindow( m_conformanceWindow );
      pps0.setConformanceWindowFlag( m_conformanceWindow.getWindowEnabledFlag() );
    }
    xInitPPS(pps0, sps0);
    // initialize APS
    xInitRPL(sps0);
  
    if (m_resChangeInClvsEnabled)
    {
      PPS &pps = *( m_ppsMap.allocatePS( ENC_PPS_ID_RPR ) );
      Window& inputScalingWindow = pps0.getScalingWindow();
      int scaledWidth = int( ( pps0.getPicWidthInLumaSamples() - SPS::getWinUnitX( sps0.getChromaFormatIdc() ) * ( inputScalingWindow.getWindowLeftOffset() + inputScalingWindow.getWindowRightOffset() ) ) / m_scalingRatioHor );
      int minSizeUnit = std::max(8, 1 << sps0.getLog2MinCodingBlockSize());
      int temp = scaledWidth / minSizeUnit;
      int width = ( scaledWidth - ( temp * minSizeUnit) > 0 ? temp + 1 : temp ) * minSizeUnit;
  
      int scaledHeight = int( ( pps0.getPicHeightInLumaSamples() - SPS::getWinUnitY( sps0.getChromaFormatIdc() ) * ( inputScalingWindow.getWindowTopOffset() + inputScalingWindow.getWindowBottomOffset() ) ) / m_scalingRatioVer );
      temp = scaledHeight / minSizeUnit;
      int height = ( scaledHeight - ( temp * minSizeUnit) > 0 ? temp + 1 : temp ) * minSizeUnit;
  
      pps.setPicWidthInLumaSamples( width );
      pps.setPicHeightInLumaSamples( height );
  
      Window conformanceWindow;
      conformanceWindow.setWindow( 0, ( width - scaledWidth ) / SPS::getWinUnitX( sps0.getChromaFormatIdc() ), 0, ( height - scaledHeight ) / SPS::getWinUnitY( sps0.getChromaFormatIdc() ) );
      if (pps.getPicWidthInLumaSamples() == sps0.getMaxPicWidthInLumaSamples() && pps.getPicHeightInLumaSamples() == sps0.getMaxPicHeightInLumaSamples())
      {
        pps.setConformanceWindow( sps0.getConformanceWindow() );
        pps.setConformanceWindowFlag( false );
      }
      else
      {
        pps.setConformanceWindow( conformanceWindow );
        pps.setConformanceWindowFlag( pps.getConformanceWindow().getWindowEnabledFlag() );
      }
  
      Window scalingWindow;
      scalingWindow.setWindow( 0, ( width - scaledWidth ) / SPS::getWinUnitX( sps0.getChromaFormatIdc() ), 0, ( height - scaledHeight ) / SPS::getWinUnitY( sps0.getChromaFormatIdc() ) );
      pps.setScalingWindow( scalingWindow );
  
      //register the width/height of the current pic into reference SPS
      if (!sps0.getPPSValidFlag(pps.getPPSId()))
      {
        sps0.setPPSValidFlag(pps.getPPSId(), true);
        sps0.setScalingWindowSizeInPPS(pps.getPPSId(), scaledWidth, scaledHeight);
      }
      int curSeqMaxPicWidthY = sps0.getMaxPicWidthInLumaSamples();    // sps_pic_width_max_in_luma_samples
      int curSeqMaxPicHeightY = sps0.getMaxPicHeightInLumaSamples();  // sps_pic_height_max_in_luma_samples
      int curPicWidthY = width;                                       // pps_pic_width_in_luma_samples
      int curPicHeightY = height;                                     // pps_pic_height_in_luma_samples
      int max8MinCbSizeY = std::max((int)8, (1 << sps0.getLog2MinCodingBlockSize())); // Max(8, MinCbSizeY)
      //Warning message of potential scaling window size violation
      for (int i = 0; i < 64; i++)
      {
        if (sps0.getPPSValidFlag(i))
        {
          if ((scaledWidth * curSeqMaxPicWidthY) < sps0.getScalingWindowSizeInPPS(i).width * (curPicWidthY - max8MinCbSizeY))
            printf("Potential violation: (curScaledWIdth * curSeqMaxPicWidthY) should be greater than or equal to refScaledWidth * (curPicWidthY - max(8, MinCbSizeY)\n");
          if ((scaledHeight * curSeqMaxPicHeightY) < sps0.getScalingWindowSizeInPPS(i).height * (curPicHeightY - max8MinCbSizeY))
            printf("Potential violation: (curScaledHeight * curSeqMaxPicHeightY) should be greater than or equal to refScaledHeight * (curPicHeightY - max(8, MinCbSizeY)\n");
        }
      }
  
      // disable picture partitioning for scaled RPR pictures (slice/tile config only provided for the original resolution)
      m_noPicPartitionFlag = true;
  
      xInitPPS( pps, sps0 ); // will allocate memory for and initialize pps.pcv inside
  
      if( pps.getWrapAroundEnabledFlag() )
      {
        int minCbSizeY = (1 << sps0.getLog2MinCodingBlockSize());
        pps.setPicWidthMinusWrapAroundOffset      ((pps.getPicWidthInLumaSamples()/minCbSizeY) - (m_wrapAroundOffset * pps.getPicWidthInLumaSamples() / pps0.getPicWidthInLumaSamples() / minCbSizeY) );
        pps.setWrapAroundOffset                   (minCbSizeY * (pps.getPicWidthInLumaSamples() / minCbSizeY - pps.getPicWidthMinusWrapAroundOffset()));
  
      }
      else
      {
        pps.setPicWidthMinusWrapAroundOffset      (0);
        pps.setWrapAroundOffset                   ( 0 );
      }
    }
  
  #if ER_CHROMA_QP_WCG_PPS
    if (m_wcgChromaQpControl.isEnabled())
    {
      PPS &pps1=*(m_ppsMap.allocatePS(1));
      xInitPPS(pps1, sps0);
    }
  #endif
    if (getUseCompositeRef())
    {
      PPS &pps2 = *(m_ppsMap.allocatePS(2));
      xInitPPS(pps2, sps0);
      xInitPPSforLT(pps2);
    }
    xInitPicHeader(m_picHeader, sps0, pps0);
  
    // initialize processing unit classes
    m_cGOPEncoder.  init( this );
    m_cSliceEncoder.init( this, sps0 );
    m_cCuEncoder.   init( this, sps0 );
  
    // initialize transform & quantization class
    m_cTrQuant.init( nullptr,
                     1 << m_log2MaxTbSize,
                     m_useRDOQ,
                     m_useRDOQTS,
  #if T0196_SELECTIVE_RDOQ
                     m_useSelectiveRDOQ,
  #endif
                     true
    );
  
    // initialize encoder search class
    CABACWriter* cabacEstimator = m_CABACEncoder.getCABACEstimator(&sps0);
    m_cIntraSearch.init( this,
                         &m_cTrQuant,
                         &m_cRdCost,
                         cabacEstimator,
                         getCtxCache(), m_maxCUWidth, m_maxCUHeight, floorLog2(m_maxCUWidth) - m_log2MinCUSize
                       , &m_cReshaper
                       , sps0.getBitDepth(CHANNEL_TYPE_LUMA)
    );
    m_cInterSearch.init( this,
                         &m_cTrQuant,
                         m_iSearchRange,
                         m_bipredSearchRange,
                         m_motionEstimationSearchMethod,
                         getUseCompositeRef(),
      m_maxCUWidth, m_maxCUHeight, floorLog2(m_maxCUWidth) - m_log2MinCUSize, &m_cRdCost, cabacEstimator, getCtxCache()
                       , &m_cReshaper
    );
  
    // link temporary buffets from intra search with inter search to avoid unneccessary memory overhead
    m_cInterSearch.setTempBuffers( m_cIntraSearch.getSplitCSBuf(), m_cIntraSearch.getFullCSBuf(), m_cIntraSearch.getSaveCSBuf() );
  
    m_iMaxRefPicNum = 0;
  
  #if ER_CHROMA_QP_WCG_PPS
    if( m_wcgChromaQpControl.isEnabled() )
    {
      xInitScalingLists( sps0, *m_apsMap.getPS( 1 ) );
      xInitScalingLists( sps0, aps0 );
    }
    else
  #endif
    {
      xInitScalingLists( sps0, aps0 );
    }
    if (m_resChangeInClvsEnabled)
    {
      xInitScalingLists( sps0, *m_apsMap.getPS( ENC_PPS_ID_RPR ) );
    }
    if (getUseCompositeRef())
    {
      Picture *picBg = new Picture;
      picBg->create( sps0.getChromaFormatIdc(), Size( pps0.getPicWidthInLumaSamples(), pps0.getPicHeightInLumaSamples() ), sps0.getMaxCUWidth(), sps0.getMaxCUWidth() + 16, false, m_layerId, m_gopBasedTemporalFilterEnabled );
      picBg->getRecoBuf().fill(0);
  #if GDR_ENABLED
      PicHeader *picHeader = new PicHeader();
      xInitPicHeader(*picHeader, sps0, pps0);
      picBg->finalInit( m_vps, sps0, pps0, picHeader, m_apss, m_lmcsAPS, m_scalinglistAPS );
  #else
      picBg->finalInit( m_vps, sps0, pps0, &m_picHeader, m_apss, m_lmcsAPS, m_scalinglistAPS );
  #endif
      picBg->allocateNewSlice();
      picBg->createSpliceIdx(pps0.pcv->sizeInCtus);
      m_cGOPEncoder.setPicBg(picBg);
      Picture *picOrig = new Picture;
      picOrig->create( sps0.getChromaFormatIdc(), Size( pps0.getPicWidthInLumaSamples(), pps0.getPicHeightInLumaSamples() ), sps0.getMaxCUWidth(), sps0.getMaxCUWidth() + 16, false, m_layerId, m_gopBasedTemporalFilterEnabled );
      picOrig->getOrigBuf().fill(0);
      m_cGOPEncoder.setPicOrig(picOrig);
    }
  }
  
  void EncLib::xInitScalingLists( SPS &sps, APS &aps )
  {
    // Initialise scaling lists
    // The encoder will only use the SPS scaling lists. The PPS will never be marked present.
    const int maxLog2TrDynamicRange[MAX_NUM_CHANNEL_TYPE] =
    {
      sps.getMaxLog2TrDynamicRange(CHANNEL_TYPE_LUMA),
      sps.getMaxLog2TrDynamicRange(CHANNEL_TYPE_CHROMA)
    };
  
    Quant* quant = getTrQuant()->getQuant();
  
    if(getUseScalingListId() == SCALING_LIST_OFF)
    {
      quant->setFlatScalingList(maxLog2TrDynamicRange, sps.getBitDepths());
      quant->setUseScalingList(false);
    }
    else if(getUseScalingListId() == SCALING_LIST_DEFAULT)
    {
      aps.getScalingList().setDefaultScalingList ();
      quant->setScalingList( &( aps.getScalingList() ), maxLog2TrDynamicRange, sps.getBitDepths() );
      quant->setUseScalingList(true);
    }
    else if(getUseScalingListId() == SCALING_LIST_FILE_READ)
    {
      aps.getScalingList().setDefaultScalingList();
      CHECK( aps.getScalingList().xParseScalingList( getScalingListFileName() ), "Error Parsing Scaling List Input File" );
      aps.getScalingList().checkDcOfMatrix();
      if( aps.getScalingList().isNotDefaultScalingList() == false )
      {
        setUseScalingListId( SCALING_LIST_DEFAULT );
      }
      aps.getScalingList().setChromaScalingListPresentFlag((sps.getChromaFormatIdc()!=CHROMA_400));
      quant->setScalingList( &( aps.getScalingList() ), maxLog2TrDynamicRange, sps.getBitDepths() );
      quant->setUseScalingList(true);
  
      sps.setDisableScalingMatrixForLfnstBlks(getDisableScalingMatrixForLfnstBlks());
    }
    else
    {
      THROW("error : ScalingList == " << getUseScalingListId() << " not supported\n");
    }
  
    if( getUseScalingListId() == SCALING_LIST_FILE_READ )
    {
      // Prepare delta's:
      for (uint32_t scalingListId = 0; scalingListId < 28; scalingListId++)
      {
        if (aps.getScalingList().getChromaScalingListPresentFlag()||aps.getScalingList().isLumaScalingList(scalingListId))
        {
          aps.getScalingList().checkPredMode(scalingListId);
        }
      }
    }
  }
  
  void EncLib::xInitPPSforLT(PPS& pps)
  {
    pps.setOutputFlagPresentFlag(true);
    pps.setDeblockingFilterControlPresentFlag(true);
    pps.setPPSDeblockingFilterDisabledFlag(true);
  }
  
  // ====================================================================================================================
  // Public member functions
  // ====================================================================================================================
  
  void EncLib::deletePicBuffer()
  {
    PicList::iterator iterPic = m_cListPic.begin();
    int iSize = int( m_cListPic.size() );
  
    for ( int i = 0; i < iSize; i++ )
    {
      Picture* pcPic = *(iterPic++);
  
      pcPic->destroy();
  
      // get rid of the qpadaption layer
      while( pcPic->aqlayer.size() )
      {
        delete pcPic->aqlayer.back(); pcPic->aqlayer.pop_back();
      }
  
      delete pcPic;
      pcPic = NULL;
    }
  
    m_cListPic.clear();
  }
  
  bool EncLib::encodePrep( bool flush, PelStorage* pcPicYuvOrg, PelStorage* cPicYuvTrueOrg, PelStorage* pcPicYuvFilteredOrg, const InputColourSpaceConversion snrCSC, std::list<PelUnitBuf*>& rcListPicYuvRecOut, int& iNumEncoded )
  {
    if( m_compositeRefEnabled && m_cGOPEncoder.getPicBg()->getSpliceFull() && m_iPOCLast >= 10 && m_iNumPicRcvd == 0 && m_cGOPEncoder.getEncodedLTRef() == false )
    {
      Picture* picCurr = NULL;
      xGetNewPicBuffer( rcListPicYuvRecOut, picCurr, 2 );
      const PPS *pps = m_ppsMap.getPS( 2 );
      const SPS *sps = m_spsMap.getPS( pps->getSPSId() );
  
      picCurr->M_BUFS( 0, PIC_ORIGINAL ).copyFrom( m_cGOPEncoder.getPicBg()->getRecoBuf() );
  #if GDR_ENABLED
      PicHeader *picHeader = new PicHeader();
      xInitPicHeader(*picHeader, *sps, *pps);
      picCurr->finalInit( m_vps, *sps, *pps, picHeader, m_apss, m_lmcsAPS, m_scalinglistAPS );
  #else
      picCurr->finalInit( m_vps, *sps, *pps, &m_picHeader, m_apss, m_lmcsAPS, m_scalinglistAPS );
  #endif
      picCurr->poc = m_iPOCLast - 1;
      m_iPOCLast -= 2;
      if( getUseAdaptiveQP() )
      {
        AQpPreanalyzer::preanalyze( picCurr );
      }
      if( m_RCEnableRateControl )
      {
        m_cRateCtrl.initRCGOP( m_iNumPicRcvd );
      }
  
      m_cGOPEncoder.compressGOP( m_iPOCLast, m_iNumPicRcvd, m_cListPic, rcListPicYuvRecOut, false, false,
        snrCSC, m_printFrameMSE, m_printMSSSIM, true, 0 );
  
  #if JVET_O0756_CALCULATE_HDRMETRICS
      m_metricTime = m_cGOPEncoder.getMetricTime();
  #endif
      m_cGOPEncoder.setEncodedLTRef( true );
      if( m_RCEnableRateControl )
      {
        m_cRateCtrl.destroyRCGOP();
      }
  
      iNumEncoded = 0;
      m_iNumPicRcvd = 0;
    }
  
    //PROF_ACCUM_AND_START_NEW_SET( getProfilerPic(), P_GOP_LEVEL );
    if( pcPicYuvOrg != NULL )
    {
      // get original YUV
      Picture* pcPicCurr = NULL;
  
      int ppsID = -1; // Use default PPS ID
  #if ER_CHROMA_QP_WCG_PPS
      if( getWCGChromaQPControl().isEnabled() )
      {
        ppsID = getdQPs()[m_iPOCLast / ( m_compositeRefEnabled ? 2 : 1 ) + 1];
        ppsID += ( getSwitchPOC() != -1 && ( m_iPOCLast + 1 >= getSwitchPOC() ) ? 1 : 0 );
      }
  #endif
  
      if( m_resChangeInClvsEnabled && m_intraPeriod == -1 )
      {
        const int poc = m_iPOCLast + ( m_compositeRefEnabled ? 2 : 1 );
  
        if( poc / m_switchPocPeriod % 2 )
        {
          ppsID = ENC_PPS_ID_RPR;
        }
        else
        {
          ppsID = 0;
        }
      }
  
      if( m_vps->getMaxLayers() > 1 )
      {
        ppsID = m_vps->getGeneralLayerIdx( m_layerId );
      }
  
      xGetNewPicBuffer( rcListPicYuvRecOut, pcPicCurr, ppsID );
  
      const PPS *pPPS = ( ppsID < 0 ) ? m_ppsMap.getFirstPS() : m_ppsMap.getPS( ppsID );
      const SPS *pSPS = m_spsMap.getPS( pPPS->getSPSId() );
  
      if (m_resChangeInClvsEnabled)
      {
        pcPicCurr->M_BUFS( 0, PIC_ORIGINAL_INPUT ).getBuf( COMPONENT_Y ).copyFrom( pcPicYuvOrg->getBuf( COMPONENT_Y ) );
        pcPicCurr->M_BUFS( 0, PIC_ORIGINAL_INPUT ).getBuf( COMPONENT_Cb ).copyFrom( pcPicYuvOrg->getBuf( COMPONENT_Cb ) );
        pcPicCurr->M_BUFS( 0, PIC_ORIGINAL_INPUT ).getBuf( COMPONENT_Cr ).copyFrom( pcPicYuvOrg->getBuf( COMPONENT_Cr ) );
  
        pcPicCurr->M_BUFS( 0, PIC_TRUE_ORIGINAL_INPUT ).getBuf( COMPONENT_Y ).copyFrom( cPicYuvTrueOrg->getBuf( COMPONENT_Y ) );
        pcPicCurr->M_BUFS( 0, PIC_TRUE_ORIGINAL_INPUT ).getBuf( COMPONENT_Cb ).copyFrom( cPicYuvTrueOrg->getBuf( COMPONENT_Cb ) );
        pcPicCurr->M_BUFS( 0, PIC_TRUE_ORIGINAL_INPUT ).getBuf( COMPONENT_Cr ).copyFrom( cPicYuvTrueOrg->getBuf( COMPONENT_Cr ) );
  
        if(m_gopBasedTemporalFilterEnabled)
        {
          pcPicCurr->M_BUFS( 0, PIC_FILTERED_ORIGINAL_INPUT ).getBuf( COMPONENT_Y ).copyFrom( pcPicYuvFilteredOrg->getBuf( COMPONENT_Y ) );
          pcPicCurr->M_BUFS( 0, PIC_FILTERED_ORIGINAL_INPUT ).getBuf( COMPONENT_Cb ).copyFrom( pcPicYuvFilteredOrg->getBuf( COMPONENT_Cb ) );
          pcPicCurr->M_BUFS( 0, PIC_FILTERED_ORIGINAL_INPUT ).getBuf( COMPONENT_Cr ).copyFrom( pcPicYuvFilteredOrg->getBuf( COMPONENT_Cr ) );
        }
  
        const ChromaFormat chromaFormatIDC = pSPS->getChromaFormatIdc();
  
        const PPS *refPPS = m_ppsMap.getPS( 0 );
        const Window& curScalingWindow = pPPS->getScalingWindow();
        int curPicWidth = pPPS->getPicWidthInLumaSamples()   - SPS::getWinUnitX( pSPS->getChromaFormatIdc() ) * ( curScalingWindow.getWindowLeftOffset() + curScalingWindow.getWindowRightOffset() );
        int curPicHeight = pPPS->getPicHeightInLumaSamples() - SPS::getWinUnitY( pSPS->getChromaFormatIdc() ) * ( curScalingWindow.getWindowTopOffset()  + curScalingWindow.getWindowBottomOffset() );
  
        const Window& refScalingWindow = refPPS->getScalingWindow();
        int refPicWidth = refPPS->getPicWidthInLumaSamples()   - SPS::getWinUnitX( pSPS->getChromaFormatIdc() ) * ( refScalingWindow.getWindowLeftOffset() + refScalingWindow.getWindowRightOffset() );
        int refPicHeight = refPPS->getPicHeightInLumaSamples() - SPS::getWinUnitY( pSPS->getChromaFormatIdc() ) * ( refScalingWindow.getWindowTopOffset()  + refScalingWindow.getWindowBottomOffset() );
  
        int xScale = ( ( refPicWidth << SCALE_RATIO_BITS ) + ( curPicWidth >> 1 ) ) / curPicWidth;
        int yScale = ( ( refPicHeight << SCALE_RATIO_BITS ) + ( curPicHeight >> 1 ) ) / curPicHeight;
        std::pair<int, int> scalingRatio = std::pair<int, int>( xScale, yScale );
  
        Picture::rescalePicture( scalingRatio, *pcPicYuvOrg, refPPS->getScalingWindow(), pcPicCurr->getOrigBuf(), pPPS->getScalingWindow(), chromaFormatIDC, pSPS->getBitDepths(), true, true,
          pSPS->getHorCollocatedChromaFlag(), pSPS->getVerCollocatedChromaFlag() );
        Picture::rescalePicture( scalingRatio, *cPicYuvTrueOrg, refPPS->getScalingWindow(), pcPicCurr->getTrueOrigBuf(), pPPS->getScalingWindow(), chromaFormatIDC, pSPS->getBitDepths(), true, true,
          pSPS->getHorCollocatedChromaFlag(), pSPS->getVerCollocatedChromaFlag() );
        if(m_gopBasedTemporalFilterEnabled)
        {
          Picture::rescalePicture( scalingRatio, *pcPicYuvFilteredOrg, refPPS->getScalingWindow(), pcPicCurr->getFilteredOrigBuf(), pPPS->getScalingWindow(), chromaFormatIDC, pSPS->getBitDepths(), true, true,
            pSPS->getHorCollocatedChromaFlag(), pSPS->getVerCollocatedChromaFlag() );
        }
      }
      else
      {
        pcPicCurr->M_BUFS( 0, PIC_ORIGINAL ).swap( *pcPicYuvOrg );
        pcPicCurr->M_BUFS( 0, PIC_TRUE_ORIGINAL ).swap( *cPicYuvTrueOrg );
        if(m_gopBasedTemporalFilterEnabled)
        {
          pcPicCurr->M_BUFS( 0, PIC_FILTERED_ORIGINAL ).swap( *pcPicYuvFilteredOrg );
        }
      }
  #if GDR_ENABLED
      PicHeader *picHeader = new PicHeader();
      xInitPicHeader(*picHeader, *pSPS, *pPPS);
      pcPicCurr->finalInit( m_vps, *pSPS, *pPPS, picHeader, m_apss, m_lmcsAPS, m_scalinglistAPS );
  #else
      pcPicCurr->finalInit( m_vps, *pSPS, *pPPS, &m_picHeader, m_apss, m_lmcsAPS, m_scalinglistAPS );
  #endif
  
      pcPicCurr->poc = m_iPOCLast;
  
      // compute image characteristics
      if( getUseAdaptiveQP() )
      {
        AQpPreanalyzer::preanalyze( pcPicCurr );
      }
    }
  
    if( ( m_iNumPicRcvd == 0 ) || ( !flush && ( m_iPOCLast != 0 ) && ( m_iNumPicRcvd != m_iGOPSize ) && ( m_iGOPSize != 0 ) ) )
    {
      iNumEncoded = 0;
      return true;
    }
  
    if( m_RCEnableRateControl )
    {
      m_cRateCtrl.initRCGOP( m_iNumPicRcvd );
    }
  
    m_picIdInGOP = 0;
  
    return false;
  }
  
  /**
   - Application has picture buffer list with size of GOP + 1
   - Picture buffer list acts like as ring buffer
   - End of the list has the latest picture
   .
   \param   flush               cause encoder to encode a partial GOP
   \param   pcPicYuvOrg         original YUV picture
   \param   pcPicYuvTrueOrg
   \param   snrCSC
   \retval  rcListPicYuvRecOut  list of reconstruction YUV pictures
   \retval  accessUnitsOut      list of output access units
   \retval  iNumEncoded         number of encoded pictures
   */
  
  bool EncLib::encode( const InputColourSpaceConversion snrCSC, std::list<PelUnitBuf*>& rcListPicYuvRecOut, int& iNumEncoded )
  {
    // compress GOP
    m_cGOPEncoder.compressGOP( m_iPOCLast, m_iNumPicRcvd, m_cListPic, rcListPicYuvRecOut,
      false, false, snrCSC, m_printFrameMSE, m_printMSSSIM, false, m_picIdInGOP );
  
    m_picIdInGOP++;
  
    // go over all pictures in a GOP excluding the first IRAP
    if( m_picIdInGOP != m_iGOPSize && m_iPOCLast )
    {
      return true;
    }
  
  #if JVET_O0756_CALCULATE_HDRMETRICS
    m_metricTime = m_cGOPEncoder.getMetricTime();
  #endif
  
    if( m_RCEnableRateControl )
    {
      m_cRateCtrl.destroyRCGOP();
    }
  
    iNumEncoded = m_iNumPicRcvd;
    m_iNumPicRcvd = 0;
    m_uiNumAllPicCoded += iNumEncoded;
  
    return false;
  }
  
  /**------------------------------------------------
   Separate interlaced frame into two fields
   -------------------------------------------------**/
  void separateFields(Pel* org, Pel* dstField, uint32_t stride, uint32_t width, uint32_t height, bool isTop)
  {
    if (!isTop)
    {
      org += stride;
    }
    for (int y = 0; y < height>>1; y++)
    {
      for (int x = 0; x < width; x++)
      {
        dstField[x] = org[x];
      }
  
      dstField += stride;
      org += stride*2;
    }
  
  }
  
  bool EncLib::encodePrep( bool flush, PelStorage* pcPicYuvOrg, PelStorage* pcPicYuvTrueOrg, PelStorage* pcPicYuvFilteredOrg, const InputColourSpaceConversion snrCSC, std::list<PelUnitBuf*>& rcListPicYuvRecOut,
    int& iNumEncoded, bool isTff )
  {
    iNumEncoded = 0;
    bool keepDoing = true;
  
    for( int fieldNum = 0; fieldNum < 2; fieldNum++ )
    {
      if( pcPicYuvOrg )
      {
        /* -- field initialization -- */
        const bool isTopField = isTff == ( fieldNum == 0 );
  
        Picture *pcField;
        xGetNewPicBuffer( rcListPicYuvRecOut, pcField, -1 );
  
        for( uint32_t comp = 0; comp < ::getNumberValidComponents( pcPicYuvOrg->chromaFormat ); comp++ )
        {
          const ComponentID compID = ComponentID( comp );
          {
            PelBuf compBuf = pcPicYuvOrg->get( compID );
            separateFields( compBuf.buf,
              pcField->getOrigBuf().get( compID ).buf,
              compBuf.stride,
              compBuf.width,
              compBuf.height,
              isTopField );
            // to get fields of true original buffer to avoid wrong PSNR calculation in summary
            compBuf = pcPicYuvTrueOrg->get( compID );
            separateFields( compBuf.buf,
              pcField->getTrueOrigBuf().get(compID).buf,
              compBuf.stride,
              compBuf.width,
              compBuf.height,
              isTopField);
            if(m_gopBasedTemporalFilterEnabled)
            {
              compBuf = pcPicYuvFilteredOrg->get( compID );
              separateFields( compBuf.buf,
                pcField->getTrueOrigBuf().get(compID).buf,
                compBuf.stride,
                compBuf.width,
                compBuf.height,
                isTopField);
            }
          }
        }
  
        int ppsID = -1; // Use default PPS ID
        const PPS *pPPS = ( ppsID < 0 ) ? m_ppsMap.getFirstPS() : m_ppsMap.getPS( ppsID );
        const SPS *pSPS = m_spsMap.getPS( pPPS->getSPSId() );
  
  #if GDR_ENABLED
        PicHeader *picHeader = new PicHeader();
        xInitPicHeader(*picHeader, *pSPS, *pPPS);
        pcField->finalInit( m_vps, *pSPS, *pPPS, picHeader, m_apss, m_lmcsAPS, m_scalinglistAPS );
  #else
        pcField->finalInit( m_vps, *pSPS, *pPPS, &m_picHeader, m_apss, m_lmcsAPS, m_scalinglistAPS );
  #endif
  
        pcField->poc = m_iPOCLast;
        pcField->reconstructed = false;
  
        pcField->setBorderExtension( false );// where is this normally?
  
        pcField->topField = isTopField;                  // interlaced requirement
  
        // compute image characteristics
        if( getUseAdaptiveQP() )
        {
          AQpPreanalyzer::preanalyze( pcField );
        }
      }
  
    }
  
    if( m_iNumPicRcvd && ( flush || m_iPOCLast == 1 || m_iNumPicRcvd == m_iGOPSize ) )
    {
      m_picIdInGOP = 0;
      keepDoing = false;
    }
  
    return keepDoing;
  }
  
  bool EncLib::encode( const InputColourSpaceConversion snrCSC, std::list<PelUnitBuf*>& rcListPicYuvRecOut, int& iNumEncoded, bool isTff )
  {
    iNumEncoded = 0;
  
    for( int fieldNum = 0; fieldNum < 2; fieldNum++ )
    {
      m_iPOCLast = m_iPOCLast < 2 ? fieldNum : m_iPOCLast;
  
      // compress GOP
      m_cGOPEncoder.compressGOP( m_iPOCLast, m_iPOCLast < 2 ? m_iPOCLast + 1 : m_iNumPicRcvd, m_cListPic,
        rcListPicYuvRecOut, true, isTff, snrCSC, m_printFrameMSE, m_printMSSSIM, false, m_picIdInGOP );
  #if JVET_O0756_CALCULATE_HDRMETRICS
      m_metricTime = m_cGOPEncoder.getMetricTime();
  #endif
  
      m_picIdInGOP++;
    }
  
    // go over all pictures in a GOP excluding first top field and first bottom field
    if( m_picIdInGOP != m_iGOPSize && m_iPOCLast > 1 )
    {
      return true;
    }
  
    iNumEncoded += m_iNumPicRcvd;
    m_uiNumAllPicCoded += m_iNumPicRcvd;
    m_iNumPicRcvd = 0;
  
    return false;
  }
  
  // ====================================================================================================================
  // Protected member functions
  // ====================================================================================================================
  
  /**
   - Application has picture buffer list with size of GOP + 1
   - Picture buffer list acts like as ring buffer
   - End of the list has the latest picture
   .
   \retval rpcPic obtained picture buffer
   */
  void EncLib::xGetNewPicBuffer ( std::list<PelUnitBuf*>& rcListPicYuvRecOut, Picture*& rpcPic, int ppsId )
  {
    // rotate the output buffer
    rcListPicYuvRecOut.push_back( rcListPicYuvRecOut.front() ); rcListPicYuvRecOut.pop_front();
  
    rpcPic=0;
  
    // At this point, the SPS and PPS can be considered activated - they are copied to the new Pic.
    const PPS *pPPS=(ppsId<0) ? m_ppsMap.getFirstPS() : m_ppsMap.getPS(ppsId);
    CHECK(!(pPPS!=0), "Unspecified error");
    const PPS &pps=*pPPS;
  
    const SPS *pSPS=m_spsMap.getPS(pps.getSPSId());
    CHECK(!(pSPS!=0), "Unspecified error");
    const SPS &sps=*pSPS;
  
    Slice::sortPicList(m_cListPic);
  
    // use an entry in the buffered list if the maximum number that need buffering has been reached:
    int maxDecPicBuffering = ( m_vps == nullptr || m_vps->m_numLayersInOls[m_vps->m_targetOlsIdx] == 1 ) ? sps.getMaxDecPicBuffering( MAX_TLAYER - 1 ) : m_vps->getMaxDecPicBuffering( MAX_TLAYER - 1 );
  
    if( m_cListPic.size() >= (uint32_t)( m_iGOPSize + maxDecPicBuffering + 2 ) )
    {
      PicList::iterator iterPic = m_cListPic.begin();
      int iSize = int( m_cListPic.size() );
      for( int i = 0; i < iSize; i++ )
      {
        rpcPic = *iterPic;
        if( !rpcPic->referenced && rpcPic->layerId == m_layerId )
        {
          break;
        }
        else
        {
          rpcPic = nullptr;
        }
        iterPic++;
      }
  
      // If PPS ID is the same, we will assume that it has not changed since it was last used
      // and return the old object.
      if( rpcPic && pps.getPPSId() != rpcPic->cs->pps->getPPSId() )
      {
        // the IDs differ - free up an entry in the list, and then create a new one, as with the case where the max buffering state has not been reached.
        rpcPic->destroy();
        delete rpcPic;
        m_cListPic.erase(iterPic);
        rpcPic=0;
      }
    }
  
    if (rpcPic==0)
    {
      rpcPic = new Picture;
      rpcPic->create( sps.getChromaFormatIdc(), Size( pps.getPicWidthInLumaSamples(), pps.getPicHeightInLumaSamples() ), sps.getMaxCUWidth(), sps.getMaxCUWidth() + 16, false, m_layerId, m_gopBasedTemporalFilterEnabled );
      if (m_resChangeInClvsEnabled)
      {
        const PPS &pps0 = *m_ppsMap.getPS(0);
        rpcPic->M_BUFS(0, PIC_ORIGINAL_INPUT).create(sps.getChromaFormatIdc(), Area(Position(), Size(pps0.getPicWidthInLumaSamples(), pps0.getPicHeightInLumaSamples())));
        rpcPic->M_BUFS(0, PIC_TRUE_ORIGINAL_INPUT).create(sps.getChromaFormatIdc(), Area(Position(), Size(pps0.getPicWidthInLumaSamples(), pps0.getPicHeightInLumaSamples())));
        if(m_gopBasedTemporalFilterEnabled)
        {
          rpcPic->M_BUFS(0, PIC_FILTERED_ORIGINAL_INPUT).create(sps.getChromaFormatIdc(), Area(Position(), Size(pps0.getPicWidthInLumaSamples(), pps0.getPicHeightInLumaSamples())));
        }
      }
      if ( getUseAdaptiveQP() )
      {
        const uint32_t iMaxDQPLayer = m_picHeader.getCuQpDeltaSubdivIntra()/2+1;
        rpcPic->aqlayer.resize( iMaxDQPLayer );
        for (uint32_t d = 0; d < iMaxDQPLayer; d++)
        {
          rpcPic->aqlayer[d] = new AQpLayer( pps.getPicWidthInLumaSamples(), pps.getPicHeightInLumaSamples(), sps.getMaxCUWidth() >> d, sps.getMaxCUHeight() >> d );
        }
      }
  
      m_cListPic.push_back( rpcPic );
    }
  
    rpcPic->setBorderExtension( false );
    rpcPic->reconstructed = false;
    rpcPic->referenced = true;
    rpcPic->getHashMap()->clearAll();
  
    m_iPOCLast += (m_compositeRefEnabled ? 2 : 1);
    m_iNumPicRcvd++;
  }
  
  void EncLib::xInitVPS( const SPS& sps )
  {
    // The SPS must have already been set up.
    // set the VPS profile information.
  
    m_vps->m_olsHrdParams.clear();
    m_vps->m_olsHrdParams.resize(m_vps->getNumOlsTimingHrdParamsMinus1(), std::vector<OlsHrdParams>(m_vps->getMaxSubLayers()));
    ProfileLevelTierFeatures profileLevelTierFeatures;
    profileLevelTierFeatures.extractPTLInformation( sps );
    m_vps->setMaxTidIlRefPicsPlus1(m_cfgVPSParameters.m_maxTidILRefPicsPlus1);
    m_vps->deriveOutputLayerSets();
    m_vps->deriveTargetOutputLayerSet( m_vps->m_targetOlsIdx );
  
  
    // number of the DPB parameters is set equal to the number of OLS containing multi layers
    if( !m_vps->getEachLayerIsAnOlsFlag() )
    {
      m_vps->m_numDpbParams = m_vps->getNumMultiLayeredOlss();
    }
  
    if( m_vps->m_dpbParameters.size() != m_vps->m_numDpbParams )
    {
      m_vps->m_dpbParameters.resize( m_vps->m_numDpbParams );
    }
  
    if( m_vps->m_dpbMaxTemporalId.size() != m_vps->m_numDpbParams )
    {
      m_vps->m_dpbMaxTemporalId.resize( m_vps->m_numDpbParams );
    }
  
    for( int olsIdx = 0, dpbIdx = 0; olsIdx < m_vps->m_numOutputLayersInOls.size(); olsIdx++ )
    {
      if ( m_vps->getNumLayersInOls(olsIdx) > 1 )
      {
        if( std::find( m_vps->m_layerIdInOls[olsIdx].begin(), m_vps->m_layerIdInOls[olsIdx].end(), m_layerId ) != m_vps->m_layerIdInOls[olsIdx].end() )
        {
          m_vps->setOlsDpbPicWidth( olsIdx, std::max<int>( sps.getMaxPicWidthInLumaSamples(), m_vps->getOlsDpbPicSize( olsIdx ).width ) );
          m_vps->setOlsDpbPicHeight( olsIdx, std::max<int>( sps.getMaxPicHeightInLumaSamples(), m_vps->getOlsDpbPicSize( olsIdx ).height ) );
          m_vps->setOlsDpbChromaFormatIdc( olsIdx, std::max<int>(sps.getChromaFormatIdc(), m_vps->getOlsDpbChromaFormatIdc( olsIdx )));
          m_vps->setOlsDpbBitDepthMinus8( olsIdx, std::max<int>(sps.getBitDepth(CHANNEL_TYPE_LUMA) - 8, m_vps->getOlsDpbBitDepthMinus8( olsIdx )));
        }
  
        m_vps->setOlsDpbParamsIdx( olsIdx, dpbIdx );
        dpbIdx++;
      }
    }
  
    //for( int i = 0; i < m_vps->m_numDpbParams; i++ )
    for( int i = 0; i < m_vps->m_numOutputLayersInOls.size(); i++ )
    {
      if ( m_vps->getNumLayersInOls(i) > 1 )
      {
        int dpbIdx = m_vps->getOlsDpbParamsIdx( i );
  
        if( m_vps->getMaxSubLayers() == 1 )
        {
          // When vps_max_sublayers_minus1 is equal to 0, the value of vps_dpb_max_tid[ dpbIdx ] is inferred to be equal to 0.
          m_vps->m_dpbMaxTemporalId[dpbIdx] = 0;
        }
        else
        {
          if( m_vps->getDefaultPtlDpbHrdMaxTidFlag() )
          {
            // When vps_max_sublayers_minus1 is greater than 0 and vps_all_layers_same_num_sublayers_flag is equal to 1, the value of vps_dpb_max_tid[ dpbIdx ] is inferred to be equal to vps_max_sublayers_minus1.
            m_vps->m_dpbMaxTemporalId[dpbIdx] = m_vps->getMaxSubLayers() - 1;
          }
          else
          {
            m_vps->m_dpbMaxTemporalId[dpbIdx] = m_vps->getMaxSubLayers() - 1;
          }
        }
  
        int decPicBuffering[MAX_TLAYER] = { 0 };
  
        for( int lIdx = 0; lIdx < m_vps->getNumLayersInOls( i ); lIdx++ )
        {
          for( int tId = 0; tId < MAX_TLAYER; tId++ )
          {
            decPicBuffering[tId] += m_layerDecPicBuffering[m_vps->getLayerIdInOls( i, lIdx ) * MAX_TLAYER + tId];
          }
        }
  
        for( int j = ( m_vps->m_sublayerDpbParamsPresentFlag ? 0 : m_vps->m_dpbMaxTemporalId[dpbIdx] ); j <= m_vps->m_dpbMaxTemporalId[dpbIdx]; j++ )
        {
          m_vps->m_dpbParameters[dpbIdx].m_maxDecPicBuffering[j] = decPicBuffering[j] > 0 ? decPicBuffering[j] : profileLevelTierFeatures.getMaxDpbSize( m_vps->getOlsDpbPicSize( i ).width * m_vps->getOlsDpbPicSize( i ).height );
          m_vps->m_dpbParameters[dpbIdx].m_maxNumReorderPics[j] = m_vps->m_dpbParameters[dpbIdx].m_maxDecPicBuffering[j] - 1;
          m_vps->m_dpbParameters[dpbIdx].m_maxLatencyIncreasePlus1[j] = 0;
  
          CHECK( m_vps->m_dpbParameters[dpbIdx].m_maxDecPicBuffering[j] > profileLevelTierFeatures.getMaxDpbSize( m_vps->getOlsDpbPicSize( i ).width * m_vps->getOlsDpbPicSize( i ).height ), "DPB size is not sufficient" );
        }
  
        for( int j = ( m_vps->m_sublayerDpbParamsPresentFlag ? m_vps->m_dpbMaxTemporalId[dpbIdx] : 0 ); j < m_vps->m_dpbMaxTemporalId[dpbIdx]; j++ )
        {
          // When dpb_max_dec_pic_buffering_minus1[ dpbIdx ] is not present for dpbIdx in the range of 0 to maxSubLayersMinus1 - 1, inclusive, due to subLayerInfoFlag being equal to 0, it is inferred to be equal to dpb_max_dec_pic_buffering_minus1[ maxSubLayersMinus1 ].
          m_vps->m_dpbParameters[dpbIdx].m_maxDecPicBuffering[j] = m_vps->m_dpbParameters[dpbIdx].m_maxDecPicBuffering[m_vps->m_dpbMaxTemporalId[dpbIdx]];
  
          // When dpb_max_num_reorder_pics[ dpbIdx ] is not present for dpbIdx in the range of 0 to maxSubLayersMinus1 - 1, inclusive, due to subLayerInfoFlag being equal to 0, it is inferred to be equal to dpb_max_num_reorder_pics[ maxSubLayersMinus1 ].
          m_vps->m_dpbParameters[dpbIdx].m_maxNumReorderPics[j] = m_vps->m_dpbParameters[dpbIdx].m_maxNumReorderPics[m_vps->m_dpbMaxTemporalId[dpbIdx]];
  
          // When dpb_max_latency_increase_plus1[ dpbIdx ] is not present for dpbIdx in the range of 0 to maxSubLayersMinus1 - 1, inclusive, due to subLayerInfoFlag being equal to 0, it is inferred to be equal to dpb_max_latency_increase_plus1[ maxSubLayersMinus1 ].
          m_vps->m_dpbParameters[dpbIdx].m_maxLatencyIncreasePlus1[j] = m_vps->m_dpbParameters[dpbIdx].m_maxLatencyIncreasePlus1[m_vps->m_dpbMaxTemporalId[dpbIdx]];
        }
      }
    }
    for (int i = 0; i < m_vps->getNumOutputLayerSets(); i++)
    {
      m_vps->setHrdMaxTid(i, m_vps->getMaxSubLayers() - 1);
    }
  
    m_vps->checkVPS();
  }
  
  void EncLib::xInitOPI(OPI& opi)
  {
    if (m_OPIEnabled && m_vps)
    {
      if (!opi.getOlsInfoPresentFlag())
      {
        opi.setOpiOlsIdx(m_vps->deriveTargetOLSIdx());
        opi.setOlsInfoPresentFlag(true);
      }
      if (!opi.getHtidInfoPresentFlag())
      {
        opi.setOpiHtidPlus1(m_vps->getMaxTidinTOls(opi.getOpiOlsIdx()) + 1);
        opi.setHtidInfoPresentFlag(true);
      }
    }
  }
  
  void EncLib::xInitDCI(DCI& dci, const SPS& sps)
  {
    dci.setMaxSubLayersMinus1(sps.getMaxTLayers() - 1);
    std::vector<ProfileTierLevel> ptls;
    ptls.resize(1);
    ptls[0] = *sps.getProfileTierLevel();
    dci.setProfileTierLevel(ptls);
  }
  
  void EncLib::xInitSPS( SPS& sps )
  {
    ProfileTierLevel* profileTierLevel = sps.getProfileTierLevel();
    ConstraintInfo* cinfo = profileTierLevel->getConstraintInfo();
  
    cinfo->setGciPresentFlag(m_gciPresentFlag);
    cinfo->setNoRprConstraintFlag(m_noRprConstraintFlag);
    cinfo->setNoResChangeInClvsConstraintFlag(m_noResChangeInClvsConstraintFlag);
    cinfo->setOneTilePerPicConstraintFlag(m_oneTilePerPicConstraintFlag);
    cinfo->setPicHeaderInSliceHeaderConstraintFlag(m_picHeaderInSliceHeaderConstraintFlag);
    cinfo->setOneSlicePerPicConstraintFlag(m_oneSlicePerPicConstraintFlag);
    cinfo->setNoIdrRplConstraintFlag(m_noIdrRplConstraintFlag);
    cinfo->setNoRectSliceConstraintFlag(m_noRectSliceConstraintFlag);
    cinfo->setOneSlicePerSubpicConstraintFlag(m_oneSlicePerSubpicConstraintFlag);
    cinfo->setNoSubpicInfoConstraintFlag(m_noSubpicInfoConstraintFlag);
    cinfo->setOnePictureOnlyConstraintFlag(m_onePictureOnlyConstraintFlag);
    cinfo->setIntraOnlyConstraintFlag         (m_intraOnlyConstraintFlag);
    cinfo->setMaxBitDepthConstraintIdc    (m_maxBitDepthConstraintIdc);
    cinfo->setMaxChromaFormatConstraintIdc((int)m_maxChromaFormatConstraintIdc);
    cinfo->setAllLayersIndependentConstraintFlag (m_allLayersIndependentConstraintFlag);
    cinfo->setNoMrlConstraintFlag (m_noMrlConstraintFlag);
    cinfo->setNoIspConstraintFlag (m_noIspConstraintFlag);
    cinfo->setNoMipConstraintFlag (m_noMipConstraintFlag);
    cinfo->setNoLfnstConstraintFlag (m_noLfnstConstraintFlag);
    cinfo->setNoMmvdConstraintFlag (m_noMmvdConstraintFlag);
    cinfo->setNoSmvdConstraintFlag (m_noSmvdConstraintFlag);
    cinfo->setNoProfConstraintFlag (m_noProfConstraintFlag);
    cinfo->setNoPaletteConstraintFlag (m_noPaletteConstraintFlag);
    cinfo->setNoActConstraintFlag (m_noActConstraintFlag);
    cinfo->setNoLmcsConstraintFlag (m_noLmcsConstraintFlag);
    cinfo->setNoExplicitScaleListConstraintFlag(m_noExplicitScaleListConstraintFlag);
    cinfo->setNoVirtualBoundaryConstraintFlag(m_noVirtualBoundaryConstraintFlag);
    cinfo->setNoMttConstraintFlag(m_noMttConstraintFlag);
    cinfo->setNoChromaQpOffsetConstraintFlag(m_noChromaQpOffsetConstraintFlag);
    cinfo->setNoQtbttDualTreeIntraConstraintFlag(m_noQtbttDualTreeIntraConstraintFlag);
    cinfo->setNoPartitionConstraintsOverrideConstraintFlag(m_noPartitionConstraintsOverrideConstraintFlag);
    cinfo->setNoSaoConstraintFlag(m_noSaoConstraintFlag);
    cinfo->setNoAlfConstraintFlag(m_noAlfConstraintFlag);
    cinfo->setNoCCAlfConstraintFlag(m_noCCAlfConstraintFlag);
    cinfo->setNoWeightedPredictionConstraintFlag(m_noWeightedPredictionConstraintFlag);
    cinfo->setNoRefWraparoundConstraintFlag(m_noRefWraparoundConstraintFlag);
    cinfo->setNoTemporalMvpConstraintFlag(m_noTemporalMvpConstraintFlag);
    cinfo->setNoSbtmvpConstraintFlag(m_noSbtmvpConstraintFlag);
    cinfo->setNoAmvrConstraintFlag(m_noAmvrConstraintFlag);
    cinfo->setNoBdofConstraintFlag(m_noBdofConstraintFlag);
    cinfo->setNoDmvrConstraintFlag(m_noDmvrConstraintFlag);
    cinfo->setNoCclmConstraintFlag(m_noCclmConstraintFlag);
    cinfo->setNoMtsConstraintFlag(m_noMtsConstraintFlag);
    cinfo->setNoSbtConstraintFlag(m_noSbtConstraintFlag);
    cinfo->setNoAffineMotionConstraintFlag(m_noAffineMotionConstraintFlag);
    cinfo->setNoBcwConstraintFlag(m_noBcwConstraintFlag);
    cinfo->setNoIbcConstraintFlag(m_noIbcConstraintFlag);
    cinfo->setNoCiipConstraintFlag(m_noCiipConstraintFlag);
    cinfo->setNoGeoConstraintFlag(m_noGeoConstraintFlag);
    cinfo->setNoLadfConstraintFlag(m_noLadfConstraintFlag);
    cinfo->setNoTransformSkipConstraintFlag(m_noTransformSkipConstraintFlag);
    cinfo->setNoBDPCMConstraintFlag(m_noBDPCMConstraintFlag);
    cinfo->setNoJointCbCrConstraintFlag(m_noJointCbCrConstraintFlag);
    cinfo->setNoCuQpDeltaConstraintFlag(m_noCuQpDeltaConstraintFlag);
    cinfo->setNoDepQuantConstraintFlag(m_noDepQuantConstraintFlag);
    cinfo->setNoSignDataHidingConstraintFlag(m_noSignDataHidingConstraintFlag);
    cinfo->setNoTrailConstraintFlag(m_noTrailConstraintFlag);
    cinfo->setNoStsaConstraintFlag(m_noStsaConstraintFlag);
    cinfo->setNoRaslConstraintFlag(m_noRaslConstraintFlag);
    cinfo->setNoRadlConstraintFlag(m_noRadlConstraintFlag);
    cinfo->setNoIdrConstraintFlag(m_noIdrConstraintFlag);
    cinfo->setNoCraConstraintFlag(m_noCraConstraintFlag);
    cinfo->setNoGdrConstraintFlag(m_noGdrConstraintFlag);
    cinfo->setNoApsConstraintFlag(m_noApsConstraintFlag);
  #if JVET_W2005_RANGE_EXTENSION_PROFILES
    cinfo->setLowerBitRateConstraintFlag(m_generalLowerBitRateConstraintFlag);
  #endif
  
    profileTierLevel->setLevelIdc                    (m_level);
    profileTierLevel->setTierFlag                    (m_levelTier);
    profileTierLevel->setProfileIdc                  (m_profile);
    profileTierLevel->setFrameOnlyConstraintFlag     (m_frameOnlyConstraintFlag);
    profileTierLevel->setMultiLayerEnabledFlag       (m_multiLayerEnabledFlag);
    profileTierLevel->setNumSubProfile(m_numSubProfile);
    for (int k = 0; k < m_numSubProfile; k++)
    {
      profileTierLevel->setSubProfileIdc(k, m_subProfile[k]);
    }
    /* XXX: should Main be marked as compatible with still picture? */
    /* XXX: may be a good idea to refactor the above into a function
     * that chooses the actual compatibility based upon options */
    sps.setVPSId( m_vps->getVPSId() );
  
  #if GDR_ENABLED
    if (m_gdrEnabled)
    {
      sps.setGDREnabledFlag(true);
    }
    else
    {
      sps.setGDREnabledFlag(false);
    }
  #else
    sps.setGDREnabledFlag(false);
  #endif
  
    sps.setMaxPicWidthInLumaSamples( m_sourceWidth );
    sps.setMaxPicHeightInLumaSamples( m_sourceHeight );
    if (m_resChangeInClvsEnabled)
    {
      int maxPicWidth = std::max(m_sourceWidth, (int)((double)m_sourceWidth / m_scalingRatioHor + 0.5));
      int maxPicHeight = std::max(m_sourceHeight, (int)((double)m_sourceHeight / m_scalingRatioVer + 0.5));
      const int minCuSize = std::max(8, 1 << m_log2MinCUSize);
      if (maxPicWidth % minCuSize)
      {
        maxPicWidth += ((maxPicWidth / minCuSize) + 1) * minCuSize - maxPicWidth;
      }
      if (maxPicHeight % minCuSize)
      {
        maxPicHeight += ((maxPicHeight / minCuSize) + 1) * minCuSize - maxPicHeight;
      }
      sps.setMaxPicWidthInLumaSamples( maxPicWidth );
      sps.setMaxPicHeightInLumaSamples( maxPicHeight );
    }
    sps.setConformanceWindow( m_conformanceWindow );
  
    sps.setMaxCUWidth             ( m_maxCUWidth        );
    sps.setMaxCUHeight            ( m_maxCUHeight       );
    sps.setLog2MinCodingBlockSize ( m_log2MinCUSize );
    sps.setChromaFormatIdc        ( m_chromaFormatIDC   );
  
    sps.setCTUSize                             ( m_CTUSize );
    sps.setSplitConsOverrideEnabledFlag        ( m_useSplitConsOverride );
    sps.setMinQTSizes                          ( m_uiMinQT );
    sps.setMaxMTTHierarchyDepth                ( m_uiMaxMTTHierarchyDepth, m_uiMaxMTTHierarchyDepthI, m_uiMaxMTTHierarchyDepthIChroma );
    sps.setMaxBTSize( m_uiMaxBT[1], m_uiMaxBT[0], m_uiMaxBT[2] );
    sps.setMaxTTSize( m_uiMaxTT[1], m_uiMaxTT[0], m_uiMaxTT[2] );
    sps.setIDRRefParamListPresent              ( m_idrRefParamList );
    sps.setUseDualITree                        ( m_dualITree );
    sps.setUseLFNST                            ( m_LFNST );
    sps.setSbTMVPEnabledFlag(m_sbTmvpEnableFlag);
    sps.setAMVREnabledFlag                ( m_ImvMode != IMV_OFF );
    sps.setBDOFEnabledFlag                    ( m_BIO );
    sps.setMaxNumMergeCand(getMaxNumMergeCand());
    sps.setMaxNumAffineMergeCand(getMaxNumAffineMergeCand());
    sps.setMaxNumIBCMergeCand(getMaxNumIBCMergeCand());
    sps.setMaxNumGeoCand(getMaxNumGeoCand());
    sps.setUseAffine             ( m_Affine );
    sps.setUseAffineType         ( m_AffineType );
    sps.setUsePROF               ( m_PROF );
    sps.setUseLMChroma           ( m_LMChroma ? true : false );
    sps.setHorCollocatedChromaFlag( m_horCollocatedChromaFlag );
    sps.setVerCollocatedChromaFlag( m_verCollocatedChromaFlag );
    sps.setUseMTS                ( m_IntraMTS || m_InterMTS || m_ImplicitMTS );
    sps.setUseIntraMTS           ( m_IntraMTS );
    sps.setUseInterMTS           ( m_InterMTS );
    sps.setUseSBT                             ( m_SBT );
    sps.setUseSMVD                ( m_SMVD );
    sps.setUseBcw                ( m_bcw );
  #if LUMA_ADAPTIVE_DEBLOCKING_FILTER_QP_OFFSET
    sps.setLadfEnabled           ( m_LadfEnabled );
    if ( m_LadfEnabled )
    {
      sps.setLadfNumIntervals    ( m_LadfNumIntervals );
      for ( int k = 0; k < m_LadfNumIntervals; k++ )
      {
        sps.setLadfQpOffset( m_LadfQpOffset[k], k );
        sps.setLadfIntervalLowerBound( m_LadfIntervalLowerBound[k], k );
      }
      CHECK( m_LadfIntervalLowerBound[0] != 0, "abnormal value set to LadfIntervalLowerBound[0]" );
    }
  #endif
  
    sps.setUseCiip            ( m_ciip );
    sps.setUseGeo                ( m_Geo );
    sps.setUseMMVD               ( m_MMVD );
    sps.setFpelMmvdEnabledFlag   (( m_MMVD ) ? m_allowDisFracMMVD : false);
    sps.setBdofControlPresentInPhFlag(m_BIO);
    sps.setDmvrControlPresentInPhFlag(m_DMVR);
    sps.setProfControlPresentInPhFlag(m_PROF);
    sps.setAffineAmvrEnabledFlag              ( m_AffineAmvr );
    sps.setUseDMVR                            ( m_DMVR );
    sps.setUseColorTrans(m_useColorTrans);
    sps.setPLTMode                            ( m_PLTMode);
    sps.setIBCFlag                            ( m_IBCMode);
    sps.setWrapAroundEnabledFlag                      ( m_wrapAround );
    // ADD_NEW_TOOL : (encoder lib) set tool enabling flags and associated parameters here
    sps.setUseISP                             ( m_ISP );
    sps.setUseLmcs                            ( m_lmcsEnabled );
    sps.setUseMRL                ( m_MRL );
    sps.setUseMIP                ( m_MIP );
    CHECK(m_log2MinCUSize > std::min(6, floorLog2(sps.getMaxCUWidth())), "sps_log2_min_luma_coding_block_size_minus2 shall be in the range of 0 to min (4, log2_ctu_size - 2)");
    CHECK(m_uiMaxMTTHierarchyDepth > 2 * (floorLog2(sps.getCTUSize()) - sps.getLog2MinCodingBlockSize()), "sps_max_mtt_hierarchy_depth_inter_slice shall be in the range 0 to 2*(ctbLog2SizeY - log2MinCUSize)");
    CHECK(m_uiMaxMTTHierarchyDepthI > 2 * (floorLog2(sps.getCTUSize()) - sps.getLog2MinCodingBlockSize()), "sps_max_mtt_hierarchy_depth_intra_slice_luma shall be in the range 0 to 2*(ctbLog2SizeY - log2MinCUSize)");
    CHECK(m_uiMaxMTTHierarchyDepthIChroma > 2 * (floorLog2(sps.getCTUSize()) - sps.getLog2MinCodingBlockSize()), "sps_max_mtt_hierarchy_depth_intra_slice_chroma shall be in the range 0 to 2*(ctbLog2SizeY - log2MinCUSize)");
  
    sps.setTransformSkipEnabledFlag(m_useTransformSkip);
    sps.setLog2MaxTransformSkipBlockSize(m_log2MaxTransformSkipBlockSize);
    sps.setBDPCMEnabledFlag(m_useBDPCM);
  
    sps.setSPSTemporalMVPEnabledFlag((getTMVPModeId() == 2 || getTMVPModeId() == 1));
  
    sps.setLog2MaxTbSize   ( m_log2MaxTbSize );
  
    for (uint32_t channelType = 0; channelType < MAX_NUM_CHANNEL_TYPE; channelType++)
    {
      sps.setBitDepth      (ChannelType(channelType), m_bitDepth[channelType] );
      sps.setQpBDOffset  (ChannelType(channelType), (6 * (m_bitDepth[channelType] - 8)));
      sps.setInternalMinusInputBitDepth(ChannelType(channelType), max(0, (m_bitDepth[channelType] - m_inputBitDepth[channelType])));
    }
  
    sps.setEntropyCodingSyncEnabledFlag( m_entropyCodingSyncEnabledFlag );
    sps.setEntryPointsPresentFlag( m_entryPointPresentFlag );
  
    sps.setUseWP( m_useWeightedPred );
    sps.setUseWPBiPred( m_useWeightedBiPred );
  
    sps.setSAOEnabledFlag( m_bUseSAO );
    sps.setJointCbCrEnabledFlag( m_JointCbCrMode );
    sps.setMaxTLayers( m_maxTempLayer );
    sps.setTemporalIdNestingFlag( ( m_maxTempLayer == 1 ) ? true : false );
  
    for (int i = 0; i < std::min(sps.getMaxTLayers(), (uint32_t) MAX_TLAYER); i++ )
    {
      sps.setMaxDecPicBuffering(m_maxDecPicBuffering[i], i);
      sps.setMaxNumReorderPics(m_maxNumReorderPics[i], i);
    }
  
    sps.setScalingListFlag ( (m_useScalingListId == SCALING_LIST_OFF) ? 0 : 1 );
    if (sps.getUseColorTrans() && sps.getScalingListFlag())
    {
      sps.setScalingMatrixForAlternativeColourSpaceDisabledFlag( m_disableScalingMatrixForAlternativeColourSpace );
    }
    else
    {
      sps.setScalingMatrixForAlternativeColourSpaceDisabledFlag( false );
    }
    if (sps.getScalingMatrixForAlternativeColourSpaceDisabledFlag())
    {
      sps.setScalingMatrixDesignatedColourSpaceFlag( m_scalingMatrixDesignatedColourSpace );
    }
    else
    {
      sps.setScalingMatrixDesignatedColourSpaceFlag( true );
    }
    sps.setALFEnabledFlag( m_alf );
    sps.setCCALFEnabledFlag( m_ccalf );
    sps.setFieldSeqFlag(m_fieldSeqFlag);
    sps.setVuiParametersPresentFlag(getVuiParametersPresentFlag());
  
    if (sps.getVuiParametersPresentFlag())
    {
      VUI* pcVUI = sps.getVuiParameters();
      pcVUI->setAspectRatioInfoPresentFlag(getAspectRatioInfoPresentFlag());
      pcVUI->setAspectRatioConstantFlag(!getSampleAspectRatioInfoSEIEnabled());
      pcVUI->setAspectRatioIdc(getAspectRatioIdc());
      pcVUI->setSarWidth(getSarWidth());
      pcVUI->setSarHeight(getSarHeight());
      pcVUI->setColourDescriptionPresentFlag(getColourDescriptionPresentFlag());
      pcVUI->setColourPrimaries(getColourPrimaries());
      pcVUI->setTransferCharacteristics(getTransferCharacteristics());
      pcVUI->setMatrixCoefficients(getMatrixCoefficients());
      pcVUI->setProgressiveSourceFlag       (getProgressiveSourceFlag());
      pcVUI->setInterlacedSourceFlag        (getInterlacedSourceFlag());
      pcVUI->setNonPackedFlag               (getNonPackedConstraintFlag());
      pcVUI->setNonProjectedFlag            (getNonProjectedConstraintFlag());
      pcVUI->setChromaLocInfoPresentFlag(getChromaLocInfoPresentFlag());
      pcVUI->setChromaSampleLocTypeTopField(getChromaSampleLocTypeTopField());
      pcVUI->setChromaSampleLocTypeBottomField(getChromaSampleLocTypeBottomField());
      pcVUI->setChromaSampleLocType(getChromaSampleLocType());
      pcVUI->setOverscanInfoPresentFlag(getOverscanInfoPresentFlag());
      pcVUI->setOverscanAppropriateFlag(getOverscanAppropriateFlag());
      pcVUI->setVideoFullRangeFlag(getVideoFullRangeFlag());
    }
  
    sps.setNumLongTermRefPicSPS(NUM_LONG_TERM_REF_PIC_SPS);
    CHECK(!(NUM_LONG_TERM_REF_PIC_SPS <= MAX_NUM_LONG_TERM_REF_PICS), "Unspecified error");
    for (int k = 0; k < NUM_LONG_TERM_REF_PIC_SPS; k++)
    {
      sps.setLtRefPicPocLsbSps(k, 0);
      sps.setUsedByCurrPicLtSPSFlag(k, 0);
    }
    int numQpTables = m_chromaQpMappingTableParams.getSameCQPTableForAllChromaFlag() ? 1 : (sps.getJointCbCrEnabledFlag() ? 3 : 2);
    m_chromaQpMappingTableParams.setNumQpTables(numQpTables);
    sps.setChromaQpMappingTableFromParams(m_chromaQpMappingTableParams, sps.getQpBDOffset(CHANNEL_TYPE_CHROMA));
    sps.derivedChromaQPMappingTables();
  
  #if U0132_TARGET_BITS_SATURATION
    if( getPictureTimingSEIEnabled() || getDecodingUnitInfoSEIEnabled() || getCpbSaturationEnabled() )
  #else
    if( getPictureTimingSEIEnabled() || getDecodingUnitInfoSEIEnabled() )
  #endif
    {
      xInitHrdParameters(sps);
    }
    if( getBufferingPeriodSEIEnabled() || getPictureTimingSEIEnabled() || getDecodingUnitInfoSEIEnabled() )
    {
      sps.setGeneralHrdParametersPresentFlag(true);
    }
  
    // Set up SPS range extension settings
    sps.getSpsRangeExtension().setTransformSkipRotationEnabledFlag(m_transformSkipRotationEnabledFlag);
    sps.getSpsRangeExtension().setTransformSkipContextEnabledFlag(m_transformSkipContextEnabledFlag);
    sps.getSpsRangeExtension().setExtendedPrecisionProcessingFlag(m_extendedPrecisionProcessingFlag);
    sps.getSpsRangeExtension().setTSRCRicePresentFlag(m_tsrcRicePresentFlag);
    sps.getSpsRangeExtension().setIntraSmoothingDisabledFlag( m_intraSmoothingDisabledFlag );
    sps.getSpsRangeExtension().setHighPrecisionOffsetsEnabledFlag(m_highPrecisionOffsetsEnabledFlag);
    sps.getSpsRangeExtension().setRrcRiceExtensionEnableFlag(m_rrcRiceExtensionEnableFlag);
    sps.getSpsRangeExtension().setPersistentRiceAdaptationEnabledFlag(m_persistentRiceAdaptationEnabledFlag);
  #if JVET_W0046_RLSCP
    sps.getSpsRangeExtension().setReverseLastSigCoeffEnabledFlag(m_reverseLastSigCoeffEnabledFlag);
  #endif
    sps.getSpsRangeExtension().setCabacBypassAlignmentEnabledFlag(m_cabacBypassAlignmentEnabledFlag);
  
    sps.setSubPicInfoPresentFlag(m_subPicInfoPresentFlag);
    if (m_subPicInfoPresentFlag)
    {
      sps.setNumSubPics(m_numSubPics);
      sps.setSubPicSameSizeFlag(m_subPicSameSizeFlag);
      if (m_subPicSameSizeFlag)
      {
        uint32_t numSubpicCols = (m_sourceWidth + m_CTUSize - 1) / m_CTUSize / m_subPicWidth[0];
        for (unsigned int i = 0; i < m_numSubPics; i++)
        {
          sps.setSubPicCtuTopLeftX(i, (i % numSubpicCols) * m_subPicWidth[0]);
          sps.setSubPicCtuTopLeftY(i, (i / numSubpicCols) * m_subPicHeight[0]);
          sps.setSubPicWidth(i, m_subPicWidth[0]);
          sps.setSubPicHeight(i, m_subPicHeight[0]);
        }
      }
      else
      {
        sps.setSubPicCtuTopLeftX(m_subPicCtuTopLeftX);
        sps.setSubPicCtuTopLeftY(m_subPicCtuTopLeftY);
        sps.setSubPicWidth(m_subPicWidth);
        sps.setSubPicHeight(m_subPicHeight);
      }
      sps.setSubPicTreatedAsPicFlag(m_subPicTreatedAsPicFlag);
      sps.setLoopFilterAcrossSubpicEnabledFlag(m_loopFilterAcrossSubpicEnabledFlag);
      sps.setSubPicIdLen(m_subPicIdLen);
      sps.setSubPicIdMappingExplicitlySignalledFlag(m_subPicIdMappingExplicitlySignalledFlag);
      if (m_subPicIdMappingExplicitlySignalledFlag)
      {
        sps.setSubPicIdMappingPresentFlag(m_subPicIdMappingInSpsFlag);
        if (m_subPicIdMappingInSpsFlag)
        {
          sps.setSubPicId(m_subPicId);
        }
      }
    }
    else   //In that case, there is only one subpicture that contains the whole picture
    {
      sps.setNumSubPics(1);
      sps.setSubPicCtuTopLeftX(0, 0);
      sps.setSubPicCtuTopLeftY(0, 0);
      sps.setSubPicWidth(0, m_sourceWidth);
      sps.setSubPicHeight(0, m_sourceHeight);
      sps.setSubPicTreatedAsPicFlag(0, 1);
      sps.setLoopFilterAcrossSubpicEnabledFlag(0, 0);
      sps.setSubPicIdLen(0);
      sps.setSubPicIdMappingExplicitlySignalledFlag(false);
    }
    sps.setDepQuantEnabledFlag( m_DepQuantEnabledFlag );
    if (!sps.getDepQuantEnabledFlag())
    {
      sps.setSignDataHidingEnabledFlag( m_SignDataHidingEnabledFlag );
    }
    else
    {
      sps.setSignDataHidingEnabledFlag(false);
    }
    sps.setVirtualBoundariesEnabledFlag( m_virtualBoundariesEnabledFlag );
    if( sps.getVirtualBoundariesEnabledFlag() )
    {
      sps.setVirtualBoundariesPresentFlag( m_virtualBoundariesPresentFlag );
      CHECK( sps.getSubPicInfoPresentFlag() && sps.getVirtualBoundariesPresentFlag() != 1, "When subpicture signalling if present, the signalling of virtual boundaries, is present, shall be in the SPS" );
      sps.setNumVerVirtualBoundaries            ( m_numVerVirtualBoundaries );
      sps.setNumHorVirtualBoundaries            ( m_numHorVirtualBoundaries );
      for( unsigned int i = 0; i < m_numVerVirtualBoundaries; i++ )
      {
        sps.setVirtualBoundariesPosX            ( m_virtualBoundariesPosX[i], i );
      }
      for( unsigned int i = 0; i < m_numHorVirtualBoundaries; i++ )
      {
        sps.setVirtualBoundariesPosY            ( m_virtualBoundariesPosY[i], i );
      }
    }
  
    sps.setInterLayerPresentFlag( m_layerId > 0 && m_vps->getMaxLayers() > 1 && !m_vps->getAllIndependentLayersFlag() && !m_vps->getIndependentLayerFlag( m_vps->getGeneralLayerIdx( m_layerId ) ) );
    CHECK( m_vps->getIndependentLayerFlag( m_vps->getGeneralLayerIdx( m_layerId ) ) && sps.getInterLayerPresentFlag(), " When vps_independent_layer_flag[GeneralLayerIdx[nuh_layer_id ]]  is equal to 1, the value of inter_layer_ref_pics_present_flag shall be equal to 0." );
  
  #if JVET_W0133_CONSTRAINED_RASL_ENCODING
    sps.setResChangeInClvsEnabledFlag(m_resChangeInClvsEnabled || m_constrainedRaslEncoding);
  #else
    sps.setResChangeInClvsEnabledFlag(m_resChangeInClvsEnabled);
  #endif
    sps.setRprEnabledFlag(m_rprEnabledFlag);
  
    sps.setLog2ParallelMergeLevelMinus2( m_log2ParallelMergeLevelMinus2 );
  
    CHECK(sps.getResChangeInClvsEnabledFlag() && sps.getVirtualBoundariesEnabledFlag(), "when the value of sps_res_change_in_clvs_allowed_flag is equal to 1, the value of sps_virtual_boundaries_present_flag shall be equal to 0");
  }
  
  void EncLib::xInitHrdParameters(SPS &sps)
  {
    m_encHRD.initHRDParameters((EncCfg*) this);
  
    GeneralHrdParams *generalHrdParams = sps.getGeneralHrdParameters();
    *generalHrdParams = m_encHRD.getGeneralHrdParameters();
  
    OlsHrdParams *spsOlsHrdParams = sps.getOlsHrdParameters();
    for(int i = 0; i < MAX_TLAYER; i++)
    {
      *spsOlsHrdParams = m_encHRD.getOlsHrdParameters(i);
      spsOlsHrdParams++;
    }
  }
  
  void EncLib::xInitPPS(PPS &pps, const SPS &sps)
  {
    // pps ID already initialised.
    pps.setSPSId(sps.getSPSId());
  
    pps.setNumSubPics(sps.getNumSubPics());
    pps.setSubPicIdMappingInPpsFlag(false);
    pps.setSubPicIdLen(sps.getSubPicIdLen());
    for(int picIdx=0; picIdx<pps.getNumSubPics(); picIdx++)
    {
      pps.setSubPicId(picIdx, sps.getSubPicId(picIdx));
    }
    bool bUseDQP = (getCuQpDeltaSubdiv() > 0)? true : false;
  
    if((getMaxDeltaQP() != 0 )|| getUseAdaptiveQP())
    {
      bUseDQP = true;
    }
  
  #if SHARP_LUMA_DELTA_QP
    if ( getLumaLevelToDeltaQPMapping().isEnabled() )
    {
      bUseDQP = true;
    }
  #endif
    if (getSmoothQPReductionEnable())
    {
      bUseDQP = true;
    }
  #if ENABLE_QPA
    if (getUsePerceptQPA() && !bUseDQP)
    {
      CHECK( m_cuQpDeltaSubdiv != 0, "max. delta-QP subdiv must be zero!" );
      bUseDQP = (getBaseQP() < 38) && (getSourceWidth() > 512 || getSourceHeight() > 320);
    }
  #endif
  
    if (m_costMode==COST_SEQUENCE_LEVEL_LOSSLESS || m_costMode==COST_LOSSLESS_CODING)
    {
      bUseDQP=false;
    }
  
  
    if ( m_RCEnableRateControl )
    {
      pps.setUseDQP(true);
    }
    else if(bUseDQP)
    {
      pps.setUseDQP(true);
    }
    else
    {
      pps.setUseDQP(false);
    }
  
    if ( m_cuChromaQpOffsetList.size() > 0 )
    {
      /* insert table entries from cfg parameters (NB, 0 should not be touched) */
      pps.clearChromaQpOffsetList();
      for (int i=0; i < m_cuChromaQpOffsetList.size(); i++)
      {
        pps.setChromaQpOffsetListEntry(i + 1, m_cuChromaQpOffsetList[i].u.comp.CbOffset,
          m_cuChromaQpOffsetList[i].u.comp.CrOffset, m_cuChromaQpOffsetList[i].u.comp.JointCbCrOffset);
      }
    }
    else
    {
      pps.clearChromaQpOffsetList();
    }
    {
      int baseQp = 26;
      if( 16 == getGOPSize() )
      {
        baseQp = getBaseQP()-24;
      }
      else
      {
        baseQp = getBaseQP()-26;
      }
      const int maxDQP = 37;
      const int minDQP = -26 + sps.getQpBDOffset(CHANNEL_TYPE_LUMA);
  
      pps.setPicInitQPMinus26( std::min( maxDQP, std::max( minDQP, baseQp ) ));
    }
  
    if (sps.getJointCbCrEnabledFlag() == false || getChromaFormatIdc() == CHROMA_400)
    {
      pps.setJointCbCrQpOffsetPresentFlag(false);
    }
    else
    {
      bool enable = (m_chromaCbCrQpOffset != 0);
      for (int i=0; i < m_cuChromaQpOffsetList.size(); i++)
      {
        enable |= (m_cuChromaQpOffsetList[i].u.comp.JointCbCrOffset != 0);
      }
      pps.setJointCbCrQpOffsetPresentFlag(enable);
    }
  
  #if ER_CHROMA_QP_WCG_PPS
    if (getWCGChromaQPControl().isEnabled())
    {
      const int baseQp=m_iQP+pps.getPPSId();
      const double chromaQp = m_wcgChromaQpControl.chromaQpScale * baseQp + m_wcgChromaQpControl.chromaQpOffset;
      const double dcbQP = m_wcgChromaQpControl.chromaCbQpScale * chromaQp;
      const double dcrQP = m_wcgChromaQpControl.chromaCrQpScale * chromaQp;
      const int cbQP =(int)(dcbQP + ( dcbQP < 0 ? -0.5 : 0.5) );
      const int crQP =(int)(dcrQP + ( dcrQP < 0 ? -0.5 : 0.5) );
      pps.setQpOffset(COMPONENT_Cb, Clip3( -12, 12, min(0, cbQP) + m_chromaCbQpOffset ));
      pps.setQpOffset(COMPONENT_Cr, Clip3( -12, 12, min(0, crQP) + m_chromaCrQpOffset));
      if(pps.getJointCbCrQpOffsetPresentFlag())
        pps.setQpOffset(JOINT_CbCr, Clip3(-12, 12, (min(0, cbQP) + min(0, crQP)) / 2 + m_chromaCbCrQpOffset));
      else
        pps.setQpOffset(JOINT_CbCr, 0);
    }
    else
    {
  #endif
    pps.setQpOffset(COMPONENT_Cb, m_chromaCbQpOffset );
    pps.setQpOffset(COMPONENT_Cr, m_chromaCrQpOffset );
    if (pps.getJointCbCrQpOffsetPresentFlag())
      pps.setQpOffset(JOINT_CbCr, m_chromaCbCrQpOffset);
    else
      pps.setQpOffset(JOINT_CbCr, 0);
  #if ER_CHROMA_QP_WCG_PPS
    }
  #endif
  #if W0038_CQP_ADJ
    bool bChromaDeltaQPEnabled = false;
    {
      bChromaDeltaQPEnabled = ( m_sliceChromaQpOffsetIntraOrPeriodic[0] || m_sliceChromaQpOffsetIntraOrPeriodic[1] );
      if( !bChromaDeltaQPEnabled )
      {
        for( int i=0; i<m_iGOPSize; i++ )
        {
          if( m_GOPList[i].m_CbQPoffset || m_GOPList[i].m_CrQPoffset )
          {
            bChromaDeltaQPEnabled = true;
            break;
          }
        }
      }
    }
   #if ENABLE_QPA
    if ((getUsePerceptQPA() || getSliceChromaOffsetQpPeriodicity() > 0) && (getChromaFormatIdc() != CHROMA_400))
    {
      bChromaDeltaQPEnabled = true;
    }
   #endif
    pps.setSliceChromaQpFlag(bChromaDeltaQPEnabled);
  #endif
    if (
      !pps.getSliceChromaQpFlag() && sps.getUseDualITree()
      && (getChromaFormatIdc() != CHROMA_400))
    {
      pps.setSliceChromaQpFlag(m_chromaCbQpOffsetDualTree != 0 || m_chromaCrQpOffsetDualTree != 0 || m_chromaCbCrQpOffsetDualTree != 0);
    }
  
    int minCbSizeY = (1 << sps.getLog2MinCodingBlockSize());
    pps.setWrapAroundEnabledFlag                ( m_wrapAround );
    if( m_wrapAround )
    {
      pps.setPicWidthMinusWrapAroundOffset      ((pps.getPicWidthInLumaSamples()/minCbSizeY) - (m_wrapAroundOffset / minCbSizeY));
      pps.setWrapAroundOffset                   (minCbSizeY *(pps.getPicWidthInLumaSamples() / minCbSizeY- pps.getPicWidthMinusWrapAroundOffset()));
    }
    else
    {
      pps.setPicWidthMinusWrapAroundOffset      ( 0 );
      pps.setWrapAroundOffset                   ( 0 );
    }
    CHECK( !sps.getWrapAroundEnabledFlag() && pps.getWrapAroundEnabledFlag(), "When sps_ref_wraparound_enabled_flag is equal to 0, the value of pps_ref_wraparound_enabled_flag shall be equal to 0.");
    CHECK( (((sps.getCTUSize() / minCbSizeY) + 1) > ((pps.getPicWidthInLumaSamples() / minCbSizeY) - 1)) && pps.getWrapAroundEnabledFlag(), "When the value of CtbSizeY / MinCbSizeY + 1 is greater than pps_pic_width_in_luma_samples / MinCbSizeY - 1, the value of pps_ref_wraparound_enabled_flag shall be equal to 0.");
  
    pps.setNoPicPartitionFlag( m_noPicPartitionFlag );
    if( m_noPicPartitionFlag == false )
    {
      pps.setLog2CtuSize( ceilLog2( sps.getCTUSize()) );
      pps.setNumExpTileColumns( (uint32_t) m_tileColumnWidth.size() );
      pps.setNumExpTileRows( (uint32_t) m_tileRowHeight.size() );
      pps.setTileColumnWidths( m_tileColumnWidth );
      pps.setTileRowHeights( m_tileRowHeight );
      pps.initTiles();
      pps.setRectSliceFlag( m_rectSliceFlag );
      if( m_rectSliceFlag )
      {
        pps.setSingleSlicePerSubPicFlag(m_singleSlicePerSubPicFlag);
        pps.setNumSlicesInPic( m_numSlicesInPic );
        pps.setTileIdxDeltaPresentFlag( m_tileIdxDeltaPresentFlag );
        pps.setRectSlices( m_rectSlices );
        pps.initRectSliceMap(&sps);
      }
      else
      {
        pps.initRasterSliceMap( m_rasterSliceSize );
      }
      pps.initSubPic(sps);
      pps.setLoopFilterAcrossTilesEnabledFlag( m_bLFCrossTileBoundaryFlag );
      pps.setLoopFilterAcrossSlicesEnabledFlag( m_bLFCrossSliceBoundaryFlag );
    }
    else
    {
      pps.setLog2CtuSize( ceilLog2( sps.getCTUSize()) );
      pps.setNumExpTileColumns(1);
      pps.setNumExpTileRows(1);
      pps.addTileColumnWidth( pps.getPicWidthInCtu( ) );
      pps.addTileRowHeight( pps.getPicHeightInCtu( ) );
      pps.initTiles();
      pps.setRectSliceFlag( 1 );
      pps.setNumSlicesInPic( 1 );
      pps.initRectSlices( );
      pps.setTileIdxDeltaPresentFlag( 0 );
      pps.setSliceTileIdx( 0, 0 );
      pps.initRectSliceMap( &sps );
      pps.initSubPic(sps);
      pps.setLoopFilterAcrossTilesEnabledFlag( true );
      pps.setLoopFilterAcrossSlicesEnabledFlag( true );
    }
  
    pps.setUseWP( m_useWeightedPred );
    pps.setWPBiPred( m_useWeightedBiPred );
    pps.setOutputFlagPresentFlag(false);
  
    if ( getDeblockingFilterMetric() )
    {
      pps.setDeblockingFilterOverrideEnabledFlag(true);
      pps.setPPSDeblockingFilterDisabledFlag(false);
    }
    else
    {
      pps.setDeblockingFilterOverrideEnabledFlag( !getDeblockingFilterOffsetInPPS() );
      pps.setPPSDeblockingFilterDisabledFlag( getDeblockingFilterDisable() );
    }
  
    if (! pps.getPPSDeblockingFilterDisabledFlag())
    {
      pps.setDeblockingFilterBetaOffsetDiv2  ( getDeblockingFilterBetaOffset() );
      pps.setDeblockingFilterTcOffsetDiv2    ( getDeblockingFilterTcOffset() );
      pps.setDeblockingFilterCbBetaOffsetDiv2( getDeblockingFilterCbBetaOffset() );
      pps.setDeblockingFilterCbTcOffsetDiv2  ( getDeblockingFilterCbTcOffset() );
      pps.setDeblockingFilterCrBetaOffsetDiv2( getDeblockingFilterCrBetaOffset() );
      pps.setDeblockingFilterCrTcOffsetDiv2  ( getDeblockingFilterCrTcOffset() );
    }
    else
    {
      pps.setDeblockingFilterBetaOffsetDiv2(0);
      pps.setDeblockingFilterTcOffsetDiv2(0);
      pps.setDeblockingFilterCbBetaOffsetDiv2(0);
      pps.setDeblockingFilterCbTcOffsetDiv2(0);
      pps.setDeblockingFilterCrBetaOffsetDiv2(0);
      pps.setDeblockingFilterCrTcOffsetDiv2(0);
    }
  
    // deblockingFilterControlPresentFlag is true if any of the settings differ from the inferred values:
    const bool deblockingFilterControlPresentFlag = pps.getDeblockingFilterOverrideEnabledFlag()   ||
                                                    pps.getPPSDeblockingFilterDisabledFlag()       ||
                                                    pps.getDeblockingFilterBetaOffsetDiv2() != 0   ||
                                                    pps.getDeblockingFilterTcOffsetDiv2() != 0     ||
                                                    pps.getDeblockingFilterCbBetaOffsetDiv2() != 0 ||
                                                    pps.getDeblockingFilterCbTcOffsetDiv2() != 0   ||
                                                    pps.getDeblockingFilterCrBetaOffsetDiv2() != 0 ||
                                                    pps.getDeblockingFilterCrTcOffsetDiv2() != 0;
  
    pps.setDeblockingFilterControlPresentFlag(deblockingFilterControlPresentFlag);
  
    pps.setCabacInitPresentFlag(CABAC_INIT_PRESENT_FLAG);
    pps.setLoopFilterAcrossSlicesEnabledFlag( m_bLFCrossSliceBoundaryFlag );
  
    bool chromaQPOffsetNotZero = false;
    if( pps.getQpOffset(COMPONENT_Cb) != 0 || pps.getQpOffset(COMPONENT_Cr) != 0 || pps.getJointCbCrQpOffsetPresentFlag() || pps.getSliceChromaQpFlag() || pps.getCuChromaQpOffsetListEnabledFlag() )
    {
      chromaQPOffsetNotZero = true;
    }
    bool chromaDbfOffsetNotSameAsLuma = true;
    if( pps.getDeblockingFilterCbBetaOffsetDiv2() == pps.getDeblockingFilterBetaOffsetDiv2() && pps.getDeblockingFilterCrBetaOffsetDiv2() == pps.getDeblockingFilterBetaOffsetDiv2()
       && pps.getDeblockingFilterCbTcOffsetDiv2() == pps.getDeblockingFilterTcOffsetDiv2() && pps.getDeblockingFilterCrTcOffsetDiv2() == pps.getDeblockingFilterTcOffsetDiv2() )
    {
      chromaDbfOffsetNotSameAsLuma = false;
    }
    if ((sps.getChromaFormatIdc() != CHROMA_400) && (chromaQPOffsetNotZero || chromaDbfOffsetNotSameAsLuma))
    {
      pps.setPPSChromaToolFlag(true);
    }
    else
    {
      pps.setPPSChromaToolFlag(false);
    }
  
    int histogram[MAX_NUM_REF + 1];
    for( int i = 0; i <= MAX_NUM_REF; i++ )
    {
      histogram[i]=0;
    }
    for( int i = 0; i < getGOPSize(); i++)
    {
      CHECK(!(getRPLEntry(0, i).m_numRefPicsActive >= 0 && getRPLEntry(0, i).m_numRefPicsActive <= MAX_NUM_REF), "Unspecified error");
      histogram[getRPLEntry(0, i).m_numRefPicsActive]++;
    }
  
    int maxHist=-1;
    int bestPos=0;
    for( int i = 0; i <= MAX_NUM_REF; i++ )
    {
      if(histogram[i]>maxHist)
      {
        maxHist=histogram[i];
        bestPos=i;
      }
    }
    CHECK(!(bestPos <= 15), "Unspecified error");
      pps.setNumRefIdxL0DefaultActive(bestPos);
    pps.setNumRefIdxL1DefaultActive(bestPos);
    pps.setPictureHeaderExtensionPresentFlag(false);
  
    pps.setRplInfoInPhFlag(getSliceLevelRpl() ? false : true);
    pps.setDbfInfoInPhFlag(getSliceLevelDblk() ? false : true);
    pps.setSaoInfoInPhFlag(getSliceLevelSao() ? false : true);
    pps.setAlfInfoInPhFlag(getSliceLevelAlf() ? false : true);
    pps.setWpInfoInPhFlag(getSliceLevelWp() ? false : true);
    pps.setQpDeltaInfoInPhFlag(getSliceLevelDeltaQp() ? false : true);
  
    pps.pcv = new PreCalcValues( sps, pps, true );
    pps.setRpl1IdxPresentFlag(sps.getRPL1IdxPresentFlag());
  }
  
  void EncLib::xInitPicHeader(PicHeader &picHeader, const SPS &sps, const PPS &pps)
  {
    int i;
    picHeader.initPicHeader();
  
    // parameter sets
    picHeader.setSPSId( sps.getSPSId() );
    picHeader.setPPSId( pps.getPPSId() );
  
    // merge list sizes
    picHeader.setMaxNumAffineMergeCand(getMaxNumAffineMergeCand());
    // copy partitioning constraints from SPS
    picHeader.setSplitConsOverrideFlag(false);
    picHeader.setMinQTSizes( sps.getMinQTSizes() );
    picHeader.setMaxMTTHierarchyDepths( sps.getMaxMTTHierarchyDepths() );
    picHeader.setMaxBTSizes( sps.getMaxBTSizes() );
    picHeader.setMaxTTSizes( sps.getMaxTTSizes() );
  
    bool bUseDQP = (getCuQpDeltaSubdiv() > 0)? true : false;
  
    if( (getMaxDeltaQP() != 0 )|| getUseAdaptiveQP() )
    {
      bUseDQP = true;
    }
  
  #if SHARP_LUMA_DELTA_QP
    if( getLumaLevelToDeltaQPMapping().isEnabled() )
    {
      bUseDQP = true;
    }
  #endif
    if (getSmoothQPReductionEnable())
    {
      bUseDQP = true;
    }
  #if ENABLE_QPA
    if( getUsePerceptQPA() && !bUseDQP )
    {
      CHECK( m_cuQpDeltaSubdiv != 0, "max. delta-QP subdiv must be zero!" );
      bUseDQP = (getBaseQP() < 38) && (getSourceWidth() > 512 || getSourceHeight() > 320);
    }
  #endif
  
    if( m_costMode==COST_SEQUENCE_LEVEL_LOSSLESS || m_costMode==COST_LOSSLESS_CODING )
    {
      bUseDQP=false;
    }
  
    if( m_RCEnableRateControl )
    {
      picHeader.setCuQpDeltaSubdivIntra( 0 );
      picHeader.setCuQpDeltaSubdivInter( 0 );
    }
    else if( bUseDQP )
    {
      picHeader.setCuQpDeltaSubdivIntra( m_cuQpDeltaSubdiv );
      picHeader.setCuQpDeltaSubdivInter( m_cuQpDeltaSubdiv );
    }
    else
    {
      picHeader.setCuQpDeltaSubdivIntra( 0 );
      picHeader.setCuQpDeltaSubdivInter( 0 );
    }
  
    picHeader.setCuChromaQpOffsetSubdivIntra(m_cuChromaQpOffsetSubdiv);
    picHeader.setCuChromaQpOffsetSubdivInter(m_cuChromaQpOffsetSubdiv);
  
    // virtual boundaries
    if( sps.getVirtualBoundariesEnabledFlag() )
    {
      picHeader.setVirtualBoundariesPresentFlag( sps.getVirtualBoundariesPresentFlag() );
      picHeader.setNumVerVirtualBoundaries(sps.getNumVerVirtualBoundaries());
      picHeader.setNumHorVirtualBoundaries(sps.getNumHorVirtualBoundaries());
      for(i=0; i<3; i++) {
        picHeader.setVirtualBoundariesPosX(sps.getVirtualBoundariesPosX(i), i);
        picHeader.setVirtualBoundariesPosY(sps.getVirtualBoundariesPosY(i), i);
      }
    }
  
  #if GDR_ENABLED  
      picHeader.setGdrOrIrapPicFlag(false);    
  #endif
  
    // gradual decoder refresh flag
    picHeader.setGdrPicFlag(false);
  
    // BDOF / DMVR / PROF
    picHeader.setBdofDisabledFlag(false);
    picHeader.setDmvrDisabledFlag(false);
    picHeader.setProfDisabledFlag(false);
  }
  
  void EncLib::xInitAPS(APS &aps)
  {
    //Do nothing now
  }
  
  void EncLib::xInitRPL(SPS &sps)
  {
    ReferencePictureList*      rpl;
    const bool                 isFieldCoding = sps.getFieldSeqFlag();
  
    int numRPLCandidates = getRPLCandidateSize(0);
    // To allocate one additional memory for RPL of POC1 (first bottom field) which is not specified in cfg file
    sps.createRPLList0(numRPLCandidates + (isFieldCoding ? 1 : 0));
    sps.createRPLList1(numRPLCandidates + (isFieldCoding ? 1 : 0));
    RPLList* rplList = 0;
  
    for (int i = 0; i < 2; i++)
    {
      rplList = (i == 0) ? sps.getRPLList0() : sps.getRPLList1();
      for (int j = 0; j < numRPLCandidates; j++)
      {
        const RPLEntry &ge = getRPLEntry(i, j);
        rpl = rplList->getReferencePictureList(j);
        rpl->setNumberOfShorttermPictures(ge.m_numRefPics);
        rpl->setNumberOfLongtermPictures(0);   //Hardcoded as 0 for now. need to update this when implementing LTRP
        rpl->setNumberOfActivePictures(ge.m_numRefPicsActive);
        rpl->setLtrpInSliceHeaderFlag(ge.m_ltrp_in_slice_header_flag);
        rpl->setInterLayerPresentFlag( sps.getInterLayerPresentFlag() );
        // inter-layer reference picture is not signaled in SPS RPL, SPS is shared currently
        rpl->setNumberOfInterLayerPictures( 0 );
  
        for (int k = 0; k < ge.m_numRefPics; k++)
        {
          rpl->setRefPicIdentifier(k, -ge.m_deltaRefPics[k], 0, false, 0);
        }
      }
    }
  
    if (isFieldCoding)
    {
      // To set RPL of POC1 (first bottom field) which is not specified in cfg file
      for (int i = 0; i < 2; i++)
      {
        rplList = (i == 0) ? sps.getRPLList0() : sps.getRPLList1();
        rpl = rplList->getReferencePictureList(numRPLCandidates);
        rpl->setNumberOfShorttermPictures(1);
        rpl->setNumberOfLongtermPictures(0);
        rpl->setNumberOfActivePictures(1);
        rpl->setLtrpInSliceHeaderFlag(0);
        rpl->setRefPicIdentifier(0, -1, 0, false, 0);
        rpl->setPOC(0, 0);
      }
    }
  
    bool isRpl1CopiedFromRpl0 = true;
    for( int i = 0; isRpl1CopiedFromRpl0 && i < numRPLCandidates; i++)
    {
      if( sps.getRPLList0()->getReferencePictureList(i)->getNumRefEntries() == sps.getRPLList1()->getReferencePictureList(i)->getNumRefEntries() )
      {
        for( int j = 0; isRpl1CopiedFromRpl0 && j < sps.getRPLList0()->getReferencePictureList(i)->getNumRefEntries(); j++ )
        {
          if( sps.getRPLList0()->getReferencePictureList(i)->getRefPicIdentifier(j) != sps.getRPLList1()->getReferencePictureList(i)->getRefPicIdentifier(j) )
          {
            isRpl1CopiedFromRpl0 = false;
          }
        }
      }
      else
      {
        isRpl1CopiedFromRpl0 = false;
      }
    }
    sps.setRPL1CopyFromRPL0Flag(isRpl1CopiedFromRpl0);
  
    //Check if all delta POC of STRP in each RPL has the same sign
    //Check RPLL0 first
    const RPLList* rplList0 = sps.getRPLList0();
    const RPLList* rplList1 = sps.getRPLList1();
    uint32_t numberOfRPL = sps.getNumRPL0();
  
    bool isAllEntriesinRPLHasSameSignFlag = true;
    bool isFirstEntry = true;
    bool lastSign = true;        //true = positive ; false = negative
    for (uint32_t ii = 0; isAllEntriesinRPLHasSameSignFlag && ii < numberOfRPL; ii++)
    {
      const ReferencePictureList* rpl = rplList0->getReferencePictureList(ii);
      for (uint32_t jj = 0; isAllEntriesinRPLHasSameSignFlag && jj < rpl->getNumberOfActivePictures(); jj++)
      {
        if (!rpl->isRefPicLongterm(jj) && isFirstEntry)
        {
          lastSign = (rpl->getRefPicIdentifier(jj) >= 0) ? true : false;
          isFirstEntry = false;
        }
        else if (!rpl->isRefPicLongterm(jj) && (((rpl->getRefPicIdentifier(jj) - rpl->getRefPicIdentifier(jj - 1)) >= 0 && lastSign == false) || ((rpl->getRefPicIdentifier(jj) - rpl->getRefPicIdentifier(jj - 1)) < 0 && lastSign == true)))
        {
          isAllEntriesinRPLHasSameSignFlag = false;
        }
      }
    }
    //Check RPLL1. Skip it if it is already found out that this flag is not true for RPL0 or if RPL1 is the same as RPL0
    numberOfRPL = sps.getNumRPL1();
    isFirstEntry = true;
    lastSign = true;
    for (uint32_t ii = 0; isAllEntriesinRPLHasSameSignFlag && !sps.getRPL1CopyFromRPL0Flag() && ii < numberOfRPL; ii++)
    {
      isFirstEntry = true;
      const ReferencePictureList* rpl = rplList1->getReferencePictureList(ii);
      for (uint32_t jj = 0; isAllEntriesinRPLHasSameSignFlag && jj < rpl->getNumberOfActivePictures(); jj++)
      {
        if (!rpl->isRefPicLongterm(jj) && isFirstEntry)
        {
          lastSign = (rpl->getRefPicIdentifier(jj) >= 0) ? true : false;
          isFirstEntry = false;
        }
        else if (!rpl->isRefPicLongterm(jj) && (((rpl->getRefPicIdentifier(jj) - rpl->getRefPicIdentifier(jj - 1)) >= 0 && lastSign == false) || ((rpl->getRefPicIdentifier(jj) - rpl->getRefPicIdentifier(jj - 1)) < 0 && lastSign == true)))
        {
          isAllEntriesinRPLHasSameSignFlag = false;
        }
      }
    }
    sps.setAllActiveRplEntriesHasSameSignFlag(isAllEntriesinRPLHasSameSignFlag);
  }
  
  void EncLib::getActiveRefPicListNumForPOC(const SPS *sps, int POCCurr, int GOPid, uint32_t *activeL0, uint32_t *activeL1)
  {
    if (m_intraPeriod < 0)  //Only for RA
    {
      *activeL0 = *activeL1 = 0;
      return;
    }
    uint32_t rpl0Idx = GOPid;
    uint32_t rpl1Idx = GOPid;
  
    int fullListNum = m_iGOPSize;
    int partialListNum = getRPLCandidateSize(0) - m_iGOPSize;
    int extraNum = fullListNum;
    if (m_intraPeriod < 0)
    {
      if (POCCurr < (2 * m_iGOPSize + 2))
      {
        int candidateIdx = (POCCurr + m_iGOPSize - 1 >= fullListNum + partialListNum) ? GOPid : POCCurr + m_iGOPSize - 1;
        rpl0Idx = candidateIdx;
        rpl1Idx = candidateIdx;
      }
      else
      {
        rpl0Idx = (POCCurr%m_iGOPSize == 0) ? m_iGOPSize - 1 : POCCurr%m_iGOPSize - 1;
        rpl1Idx = (POCCurr%m_iGOPSize == 0) ? m_iGOPSize - 1 : POCCurr%m_iGOPSize - 1;
      }
      extraNum = fullListNum + partialListNum;
    }
    for (; extraNum<fullListNum + partialListNum; extraNum++)
    {
      if (m_intraPeriod > 0 && getDecodingRefreshType() > 0)
      {
        int POCIndex = POCCurr % m_intraPeriod;
        if (POCIndex == 0)
        {
          POCIndex = m_intraPeriod;
        }
        if (POCIndex == m_RPLList0[extraNum].m_POC)
        {
          rpl0Idx = extraNum;
          rpl1Idx = extraNum;
          extraNum++;
        }
      }
    }
  
    const ReferencePictureList *rpl0 = sps->getRPLList0()->getReferencePictureList(rpl0Idx);
    *activeL0 = rpl0->getNumberOfActivePictures();
    const ReferencePictureList *rpl1 = sps->getRPLList1()->getReferencePictureList(rpl1Idx);
    *activeL1 = rpl1->getNumberOfActivePictures();
  }
  
  void EncLib::selectReferencePictureList(Slice* slice, int POCCurr, int GOPid, int ltPoc)
  {
    bool isEncodeLtRef = (POCCurr == ltPoc);
    if (m_compositeRefEnabled && isEncodeLtRef)
    {
      POCCurr++;
    }
  
    slice->setRPL0idx(GOPid);
    slice->setRPL1idx(GOPid);
  
    int fullListNum = m_iGOPSize;
    int partialListNum = getRPLCandidateSize(0) - m_iGOPSize;
    int extraNum = fullListNum;
  
    int rplPeriod = m_intraPeriod;
    if( rplPeriod < 0 )  //Need to check if it is low delay or RA but with no RAP
    {
      if( slice->getSPS()->getRPLList0()->getReferencePictureList(1)->getRefPicIdentifier(0) * slice->getSPS()->getRPLList1()->getReferencePictureList(1)->getRefPicIdentifier(0) < 0)
      {
        rplPeriod = m_iGOPSize * 2;
      }
    }
  
    if (rplPeriod < 0)
    {
      if (POCCurr < (2 * m_iGOPSize + 2))
      {
        int candidateIdx = (POCCurr + m_iGOPSize - 1 >= fullListNum + partialListNum) ? GOPid : POCCurr + m_iGOPSize - 1;
        slice->setRPL0idx(candidateIdx);
        slice->setRPL1idx(candidateIdx);
      }
      else
      {
        slice->setRPL0idx((POCCurr%m_iGOPSize == 0) ? m_iGOPSize - 1 : POCCurr%m_iGOPSize - 1);
        slice->setRPL1idx((POCCurr%m_iGOPSize == 0) ? m_iGOPSize - 1 : POCCurr%m_iGOPSize - 1);
      }
      extraNum = fullListNum + partialListNum;
    }
    for (; extraNum < fullListNum + partialListNum; extraNum++)
    {
      if( rplPeriod > 0 )
      {
        int POCIndex = POCCurr % rplPeriod;
        if (POCIndex == 0)
        {
          POCIndex = rplPeriod;
        }
        if (POCIndex == m_RPLList0[extraNum].m_POC)
        {
          slice->setRPL0idx(extraNum);
          slice->setRPL1idx(extraNum);
          extraNum++;
        }
      }
    }
  
    if (slice->getPic()->fieldPic)
    {
      // To set RPL index of POC1 (first bottom field)
      if (POCCurr == 1)
      {
        slice->setRPL0idx(getRPLCandidateSize(0));
        slice->setRPL1idx(getRPLCandidateSize(0));
      }
      else if( rplPeriod < 0 )
      {
        // To set RPL indexes for LD
        int numRPLCandidates = getRPLCandidateSize(0);
        if (POCCurr < numRPLCandidates - m_iGOPSize + 2)
        {
          slice->setRPL0idx(POCCurr + m_iGOPSize - 2);
          slice->setRPL1idx(POCCurr + m_iGOPSize - 2);
        }
        else
        {
          if (POCCurr%m_iGOPSize == 0)
          {
            slice->setRPL0idx(m_iGOPSize - 2);
            slice->setRPL1idx(m_iGOPSize - 2);
          }
          else if (POCCurr%m_iGOPSize == 1)
          {
            slice->setRPL0idx(m_iGOPSize - 1);
            slice->setRPL1idx(m_iGOPSize - 1);
          }
          else
          {
            slice->setRPL0idx(POCCurr % m_iGOPSize - 2);
            slice->setRPL1idx(POCCurr % m_iGOPSize - 2);
          }
        }
      }
    }
  
    const ReferencePictureList *rpl0 = (slice->getSPS()->getRPLList0()->getReferencePictureList(slice->getRPL0idx()));
    const ReferencePictureList *rpl1 = (slice->getSPS()->getRPLList1()->getReferencePictureList(slice->getRPL1idx()));
    *slice->getRPL0() = *rpl0;
    *slice->getRPL1() = *rpl1;
  }
  
  
  void EncLib::setParamSetChanged(int spsId, int ppsId)
  {
    m_ppsMap.setChangedFlag(ppsId);
    m_spsMap.setChangedFlag(spsId);
  }
  bool EncLib::APSNeedsWriting(int apsId)
  {
    bool isChanged = m_apsMap.getChangedFlag(apsId);
    m_apsMap.clearChangedFlag(apsId);
    return isChanged;
  }
  
  bool EncLib::PPSNeedsWriting(int ppsId)
  {
    bool bChanged=m_ppsMap.getChangedFlag(ppsId);
    m_ppsMap.clearChangedFlag(ppsId);
    return bChanged;
  }
  
  bool EncLib::SPSNeedsWriting(int spsId)
  {
    bool bChanged=m_spsMap.getChangedFlag(spsId);
    m_spsMap.clearChangedFlag(spsId);
    return bChanged;
  }
  
  void EncLib::checkPltStats( Picture* pic )
  {
    int totalArea = 0;
    int pltArea = 0;
    for (auto apu : pic->cs->pus)
    {
      for (int i = 0; i < MAX_NUM_TBLOCKS; ++i)
      {
        int puArea = apu->blocks[i].width * apu->blocks[i].height;
        if (apu->blocks[i].width > 0 && apu->blocks[i].height > 0)
        {
          totalArea += puArea;
          if (CU::isPLT(*apu->cu) || CU::isIBC(*apu->cu))
          {
            pltArea += puArea;
          }
          break;
        }
  
      }
    }
    if (pltArea * PLT_FAST_RATIO < totalArea)
    {
      m_doPlt = false;
    }
    else
    {
      m_doPlt = true;
    }
  }
  
  #if X0038_LAMBDA_FROM_QP_CAPABILITY
  int EncCfg::getQPForPicture(const uint32_t gopIndex, const Slice *pSlice) const
  {
    const int lumaQpBDOffset = pSlice->getSPS()->getQpBDOffset(CHANNEL_TYPE_LUMA);
    int qp;
  
    if (getCostMode()==COST_LOSSLESS_CODING)
    {
      qp = getBaseQP();
    }
    else
    {
      const SliceType sliceType=pSlice->getSliceType();
  
      qp = getBaseQP();
  
      // switch at specific qp and keep this qp offset
      static int appliedSwitchDQQ = 0; /* TODO: MT */
      if( pSlice->getPOC() == getSwitchPOC() )
      {
        appliedSwitchDQQ = getSwitchDQP();
      }
      qp += appliedSwitchDQQ;
  
  #if QP_SWITCHING_FOR_PARALLEL
      const int* pdQPs = getdQPs();
      if ( pdQPs )
      {
        qp += pdQPs[pSlice->getPOC() / (m_compositeRefEnabled ? 2 : 1)];
      }
  #endif
  
      if(sliceType==I_SLICE)
      {
        qp += getIntraQPOffset();
      }
      else
      {
          const GOPEntry &gopEntry=getGOPEntry(gopIndex);
          // adjust QP according to the QP offset for the GOP entry.
          qp +=gopEntry.m_QPOffset;
  
          // adjust QP according to QPOffsetModel for the GOP entry.
          double dqpOffset=qp*gopEntry.m_QPOffsetModelScale+gopEntry.m_QPOffsetModelOffset+0.5;
          int qpOffset = (int)floor(Clip3<double>(0.0, 3.0, dqpOffset));
          qp += qpOffset ;
        }
  
  #if !QP_SWITCHING_FOR_PARALLEL
      // modify QP if a fractional QP was originally specified, cause dQPs to be 0 or 1.
      const int* pdQPs = getdQPs();
      if ( pdQPs )
      {
        qp += pdQPs[ pSlice->getPOC() ];
      }
  #endif
    }
    qp = Clip3( -lumaQpBDOffset, MAX_QP, qp );
    return qp;
  }
  #endif
  
  
  //! \}
  