EncGOP.cpp

    {
      if (!m_pcReshaper->getReshapeFlag())
      {
        m_pcReshaper->setCTUFlag(false);
      }
      else
        m_pcReshaper->setCTUFlag(true);

      m_pcReshaper->getSliceReshaperInfo().setSliceReshapeModelPresentFlag(false);

      if (m_pcCfg->getReshapeSignalType() == RESHAPE_SIGNAL_PQ)
      {
        m_pcEncLib->getRdCost()->restoreReshapeLumaLevelToWeightTable();
      }
#if JVET_O0432_LMCS_ENCODER
      else if (m_pcCfg->getReshapeSignalType() == RESHAPE_SIGNAL_SDR || m_pcCfg->getReshapeSignalType() == RESHAPE_SIGNAL_HLG)
      {
        int modIP = pic->getPOC() - pic->getPOC() / m_pcCfg->getReshapeCW().rspFpsToIp * m_pcCfg->getReshapeCW().rspFpsToIp;
        if (m_pcReshaper->getReshapeFlag() && m_pcCfg->getReshapeCW().updateCtrl == 2 && modIP == 0)
        {
          m_pcReshaper->getSliceReshaperInfo().setSliceReshapeModelPresentFlag(true);
          m_pcReshaper->constructReshaperLMCS();
          m_pcEncLib->getRdCost()->updateReshapeLumaLevelToWeightTable(m_pcReshaper->getSliceReshaperInfo(), m_pcReshaper->getWeightTable(), m_pcReshaper->getCWeight());
        }
      }
#else
      else if (m_pcCfg->getReshapeSignalType() == RESHAPE_SIGNAL_SDR)
      {
        int modIP = pic->getPOC() - pic->getPOC() / m_pcCfg->getReshapeCW().rspFpsToIp * m_pcCfg->getReshapeCW().rspFpsToIp;
        if (m_pcReshaper->getReshapeFlag() && m_pcCfg->getReshapeCW().rspIntraPeriod == -1 && modIP == 0)           // for LDB, update reshaping curve every second
        {
          m_pcReshaper->getSliceReshaperInfo().setSliceReshapeModelPresentFlag(true);
          m_pcReshaper->constructReshaperSDR();
          m_pcEncLib->getRdCost()->updateReshapeLumaLevelToWeightTable(m_pcReshaper->getSliceReshaperInfo(), m_pcReshaper->getWeightTable(), m_pcReshaper->getCWeight());
        }
      }
#endif
      else
      {
        THROW("Reshaper for other signal currently not defined!");
      }
    }

    //set all necessary information in LMCS APS and slice
    slice->setLmcsEnabledFlag(m_pcReshaper->getSliceReshaperInfo().getUseSliceReshaper());
    slice->setLmcsChromaResidualScaleFlag(m_pcReshaper->getSliceReshaperInfo().getSliceReshapeChromaAdj() == 1);
    if (m_pcReshaper->getSliceReshaperInfo().getSliceReshapeModelPresentFlag())
    {
      int apsId = 0;
      slice->setLmcsAPSId(apsId);
      APS* lmcsAPS = slice->getLmcsAPS();
      if (lmcsAPS == nullptr)
      {
        ParameterSetMap<APS> *apsMap = m_pcEncLib->getApsMap();
        lmcsAPS = apsMap->getPS((apsId << NUM_APS_TYPE_LEN) + LMCS_APS);
        if (lmcsAPS == NULL)
        {
          lmcsAPS = apsMap->allocatePS((apsId << NUM_APS_TYPE_LEN) + LMCS_APS);
          lmcsAPS->setAPSId(apsId);
          lmcsAPS->setAPSType(LMCS_APS);
        }
        slice->setLmcsAPS(lmcsAPS);
      }
      //m_pcReshaper->copySliceReshaperInfo(lmcsAPS->getReshaperAPSInfo(), m_pcReshaper->getSliceReshaperInfo());
      SliceReshapeInfo& tInfo = lmcsAPS->getReshaperAPSInfo();
      SliceReshapeInfo& sInfo = m_pcReshaper->getSliceReshaperInfo();
      tInfo.reshaperModelMaxBinIdx = sInfo.reshaperModelMaxBinIdx;
      tInfo.reshaperModelMinBinIdx = sInfo.reshaperModelMinBinIdx;
      memcpy(tInfo.reshaperModelBinCWDelta, sInfo.reshaperModelBinCWDelta, sizeof(int)*(PIC_CODE_CW_BINS));
      tInfo.maxNbitsNeededDeltaCW = sInfo.maxNbitsNeededDeltaCW;
      m_pcEncLib->getApsMap()->setChangedFlag((lmcsAPS->getAPSId() << NUM_APS_TYPE_LEN) + LMCS_APS);
    }


    if (slice->getLmcsEnabledFlag())
    {
      int apsId = 0;
      slice->setLmcsAPSId(apsId);
    }
  }
  else
  {
    m_pcReshaper->setCTUFlag(false);
  }
}

// ====================================================================================================================
// Public member functions
// ====================================================================================================================
void EncGOP::compressGOP( int iPOCLast, int iNumPicRcvd, PicList& rcListPic,
                          std::list<PelUnitBuf*>& rcListPicYuvRecOut,
                          bool isField, bool isTff, const InputColourSpaceConversion snr_conversion, const bool printFrameMSE
                        , bool isEncodeLtRef
)
{
  // TODO: Split this function up.

  Picture*        pcPic = NULL;
  Slice*      pcSlice;
  OutputBitstream  *pcBitstreamRedirect;
  pcBitstreamRedirect = new OutputBitstream;
  AccessUnit::iterator  itLocationToPushSliceHeaderNALU; // used to store location where NALU containing slice header is to be inserted
#if JVET_O1164_RPR
  Picture* scaledRefPic[MAX_NUM_REF] = {};
#endif

  xInitGOP(iPOCLast, iNumPicRcvd, isField
         , isEncodeLtRef
  );

  m_iNumPicCoded = 0;
  SEIMessages leadingSeiMessages;
  SEIMessages nestedSeiMessages;
  SEIMessages duInfoSeiMessages;
  SEIMessages trailingSeiMessages;
  std::deque<DUData> duData;

  EfficientFieldIRAPMapping effFieldIRAPMap;
  if (m_pcCfg->getEfficientFieldIRAPEnabled())
  {
    effFieldIRAPMap.initialize(isField, m_iGopSize, iPOCLast, iNumPicRcvd, m_iLastIDR, this, m_pcCfg);
  }

  // reset flag indicating whether pictures have been encoded
  for ( int iGOPid=0; iGOPid < m_iGopSize; iGOPid++ )
  {
    m_pcCfg->setEncodedFlag(iGOPid, false);
  }

  for ( int iGOPid=0; iGOPid < m_iGopSize; iGOPid++ )
  {
    if (m_pcCfg->getEfficientFieldIRAPEnabled())
    {
      iGOPid=effFieldIRAPMap.adjustGOPid(iGOPid);
    }

    //-- For time output for each slice
    auto beforeTime = std::chrono::steady_clock::now();

#if !X0038_LAMBDA_FROM_QP_CAPABILITY
    uint32_t uiColDir = calculateCollocatedFromL1Flag(m_pcCfg, iGOPid, m_iGopSize);
#endif

    /////////////////////////////////////////////////////////////////////////////////////////////////// Initial to start encoding
    int iTimeOffset;
    int pocCurr;
    int multipleFactor = m_pcCfg->getUseCompositeRef() ? 2 : 1;

    if(iPOCLast == 0) //case first frame or first top field
    {
      pocCurr=0;
      iTimeOffset = multipleFactor;
    }
    else if(iPOCLast == 1 && isField) //case first bottom field, just like the first frame, the poc computation is not right anymore, we set the right value
    {
      pocCurr = 1;
      iTimeOffset = 1;
    }
    else
    {
      pocCurr = iPOCLast - iNumPicRcvd * multipleFactor + m_pcCfg->getGOPEntry(iGOPid).m_POC - ((isField && m_iGopSize>1) ? 1 : 0);
      iTimeOffset = m_pcCfg->getGOPEntry(iGOPid).m_POC;
    }

    if (m_pcCfg->getUseCompositeRef() && isEncodeLtRef)
    {
      pocCurr++;
      iTimeOffset--;
    }
    if (pocCurr / multipleFactor >= m_pcCfg->getFramesToBeEncoded())
    {
      if (m_pcCfg->getEfficientFieldIRAPEnabled())
      {
        iGOPid=effFieldIRAPMap.restoreGOPid(iGOPid);
      }
      continue;
    }

    if( getNalUnitType(pocCurr, m_iLastIDR, isField) == NAL_UNIT_CODED_SLICE_IDR_W_RADL || getNalUnitType(pocCurr, m_iLastIDR, isField) == NAL_UNIT_CODED_SLICE_IDR_N_LP )
    {
      m_iLastIDR = pocCurr;
    }

    // start a new access unit: create an entry in the list of output access units
    AccessUnit accessUnit;
    xGetBuffer( rcListPic, rcListPicYuvRecOut,
                iNumPicRcvd, iTimeOffset, pcPic, pocCurr, isField );

#if ER_CHROMA_QP_WCG_PPS
    // th this is a hot fix for the choma qp control
    if( m_pcEncLib->getWCGChromaQPControl().isEnabled() && m_pcEncLib->getSwitchPOC() != -1 )
    {
      static int usePPS = 0; /* TODO: MT */
      if( pocCurr == m_pcEncLib->getSwitchPOC() )
      {
        usePPS = 1;
      }
      const PPS *pPPS = m_pcEncLib->getPPS(usePPS);
      // replace the pps with a more appropriated one
      pcPic->cs->pps = pPPS;
    }
#endif

#if JVET_O1164_PS
    // create objects based on the picture size
    const int picWidth = pcPic->cs->pps->getPicWidthInLumaSamples();
    const int picHeight = pcPic->cs->pps->getPicHeightInLumaSamples();
    const int maxCUWidth = pcPic->cs->sps->getMaxCUWidth();
    const int maxCUHeight = pcPic->cs->sps->getMaxCUHeight();
    const ChromaFormat chromaFormatIDC = pcPic->cs->sps->getChromaFormatIdc();
    const int maxTotalCUDepth = pcPic->cs->sps->getMaxCodingDepth();

    m_pcSliceEncoder->create( picWidth, picHeight, chromaFormatIDC, maxCUWidth, maxCUHeight, maxTotalCUDepth );
#endif

#if ENABLE_SPLIT_PARALLELISM && ENABLE_WPP_PARALLELISM
    pcPic->scheduler.init( pcPic->cs->pcv->heightInCtus, pcPic->cs->pcv->widthInCtus, m_pcCfg->getNumWppThreads(), m_pcCfg->getNumWppExtraLines(), m_pcCfg->getNumSplitThreads() );
#elif ENABLE_SPLIT_PARALLELISM
    pcPic->scheduler.init( pcPic->cs->pcv->heightInCtus, pcPic->cs->pcv->widthInCtus, 1                          , 0                             , m_pcCfg->getNumSplitThreads() );
#elif ENABLE_WPP_PARALLELISM
    pcPic->scheduler.init( pcPic->cs->pcv->heightInCtus, pcPic->cs->pcv->widthInCtus, m_pcCfg->getNumWppThreads(), m_pcCfg->getNumWppExtraLines(), 1                             );
#endif
    pcPic->createTempBuffers( pcPic->cs->pps->pcv->maxCUWidth );
    pcPic->cs->createCoeffs();

    //  Slice data initialization
    pcPic->clearSliceBuffer();
    pcPic->allocateNewSlice();
    m_pcSliceEncoder->setSliceSegmentIdx(0);

    m_pcSliceEncoder->initEncSlice(pcPic, iPOCLast, pocCurr, iGOPid, pcSlice, isField
      , isEncodeLtRef
    );

    DTRACE_UPDATE( g_trace_ctx, ( std::make_pair( "poc", pocCurr ) ) );
    DTRACE_UPDATE( g_trace_ctx, ( std::make_pair( "final", 0 ) ) );

#if !SHARP_LUMA_DELTA_QP
    //Set Frame/Field coding
    pcPic->fieldPic = isField;
#endif

    pcSlice->setLastIDR(m_iLastIDR);
    pcSlice->setIndependentSliceIdx(0);
    //set default slice level flag to the same as SPS level flag
    pcSlice->setLFCrossSliceBoundaryFlag(  pcSlice->getPPS()->getLoopFilterAcrossSlicesEnabledFlag()  );

    if(pcSlice->getSliceType()==B_SLICE&&m_pcCfg->getGOPEntry(iGOPid).m_sliceType=='P')
    {
      pcSlice->setSliceType(P_SLICE);
    }
    if(pcSlice->getSliceType()==B_SLICE&&m_pcCfg->getGOPEntry(iGOPid).m_sliceType=='I')
    {
      pcSlice->setSliceType(I_SLICE);
    }
    // Set the nal unit type
    pcSlice->setNalUnitType(getNalUnitType(pocCurr, m_iLastIDR, isField));

    if (m_pcCfg->getEfficientFieldIRAPEnabled())
    {
      if ( pcSlice->getNalUnitType() == NAL_UNIT_CODED_SLICE_IDR_W_RADL
        || pcSlice->getNalUnitType() == NAL_UNIT_CODED_SLICE_IDR_N_LP
        || pcSlice->getNalUnitType() == NAL_UNIT_CODED_SLICE_CRA)  // IRAP picture
      {
        m_associatedIRAPType = pcSlice->getNalUnitType();
        m_associatedIRAPPOC = pocCurr;
      }
      pcSlice->setAssociatedIRAPType(m_associatedIRAPType);
      pcSlice->setAssociatedIRAPPOC(m_associatedIRAPPOC);
    }

    pcSlice->decodingRefreshMarking(m_pocCRA, m_bRefreshPending, rcListPic, m_pcCfg->getEfficientFieldIRAPEnabled());
    if (m_pcCfg->getUseCompositeRef() && isEncodeLtRef)
    {
      setUseLTRef(true);
      setPrepareLTRef(false);
      setNewestBgPOC(pocCurr);
      setLastLTRefPoc(pocCurr);
    }
    else if (m_pcCfg->getUseCompositeRef() && getLastLTRefPoc() >= 0 && getEncodedLTRef()==false && !getPicBg()->getSpliceFull() && (pocCurr - getLastLTRefPoc()) > (m_pcCfg->getFrameRate() * 2))
    {
      setUseLTRef(false);
      setPrepareLTRef(false);
      setEncodedLTRef(true);
      setNewestBgPOC(-1);
      setLastLTRefPoc(-1);
    }

    if (m_pcCfg->getUseCompositeRef() && m_picBg->getSpliceFull() && getUseLTRef())
    {
      m_pcEncLib->selectReferencePictureList(pcSlice, pocCurr, iGOPid, m_bgPOC);
    }
    else
    {
      m_pcEncLib->selectReferencePictureList(pcSlice, pocCurr, iGOPid, -1);
    }
    if (!m_pcCfg->getEfficientFieldIRAPEnabled())
    {
      if ( pcSlice->getNalUnitType() == NAL_UNIT_CODED_SLICE_IDR_W_RADL
        || pcSlice->getNalUnitType() == NAL_UNIT_CODED_SLICE_IDR_N_LP
        || pcSlice->getNalUnitType() == NAL_UNIT_CODED_SLICE_CRA)  // IRAP picture
      {
        m_associatedIRAPType = pcSlice->getNalUnitType();
        m_associatedIRAPPOC = pocCurr;
      }
      pcSlice->setAssociatedIRAPType(m_associatedIRAPType);
      pcSlice->setAssociatedIRAPPOC(m_associatedIRAPPOC);
    }

#if JVET_N0494_DRAP
    pcSlice->setEnableDRAPSEI(m_pcEncLib->getDependentRAPIndicationSEIEnabled());
    if (m_pcEncLib->getDependentRAPIndicationSEIEnabled())
    {
      // Only mark the picture as DRAP if all of the following applies:
      //  1) DRAP indication SEI messages are enabled
      //  2) The current picture is not an intra picture
      //  3) The current picture is in the DRAP period
      //  4) The current picture is a trailing picture
      pcSlice->setDRAP(m_pcEncLib->getDependentRAPIndicationSEIEnabled() && m_pcEncLib->getDrapPeriod() > 0 && !pcSlice->isIntra() &&
              pocCurr % m_pcEncLib->getDrapPeriod() == 0 && pocCurr > pcSlice->getAssociatedIRAPPOC());
      
      if (pcSlice->isDRAP())
      {
        int pocCycle = 1 << (pcSlice->getSPS()->getBitsForPOC());
        int deltaPOC = pocCurr > pcSlice->getAssociatedIRAPPOC() ? pocCurr - pcSlice->getAssociatedIRAPPOC() : pocCurr - ( pcSlice->getAssociatedIRAPPOC() & (pocCycle -1) ); 
        CHECK(deltaPOC > (pocCycle >> 1), "Use a greater value for POC wraparound to enable a POC distance between IRAP and DRAP of " << deltaPOC << ".");
        m_latestDRAPPOC = pocCurr;
        pcSlice->setTLayer(0); // Force DRAP picture to have temporal layer 0
      }
      pcSlice->setLatestDRAPPOC(m_latestDRAPPOC);
      pcSlice->setUseLTforDRAP(false); // When set, sets the associated IRAP as long-term in RPL0 at slice level, unless the associated IRAP is already included in RPL0 or RPL1 defined in SPS

      PicList::iterator iterPic = rcListPic.begin();
      Picture *rpcPic;
      while (iterPic != rcListPic.end())
      {
        rpcPic = *(iterPic++);
        if ( pcSlice->isDRAP() && rpcPic->getPOC() != pocCurr )
        {
            rpcPic->precedingDRAP = true;
        }
        else if ( !pcSlice->isDRAP() && rpcPic->getPOC() == pocCurr )
        {
          rpcPic->precedingDRAP = false;
        }
      }
    }

    if (pcSlice->checkThatAllRefPicsAreAvailable(rcListPic, pcSlice->getRPL0(), 0, false) != 0 || pcSlice->checkThatAllRefPicsAreAvailable(rcListPic, pcSlice->getRPL1(), 1, false) != 0 || 
        (m_pcEncLib->getDependentRAPIndicationSEIEnabled() && !pcSlice->isIRAP() && ( pcSlice->isDRAP() || !pcSlice->isPOCInRefPicList(pcSlice->getRPL0(), pcSlice->getAssociatedIRAPPOC())) ))
#else
    if (pcSlice->checkThatAllRefPicsAreAvailable(rcListPic, pcSlice->getRPL0(), 0, false) != 0 || pcSlice->checkThatAllRefPicsAreAvailable(rcListPic, pcSlice->getRPL1(), 1, false) != 0)
#endif
    {
      pcSlice->createExplicitReferencePictureSetFromReference(rcListPic, pcSlice->getRPL0(), pcSlice->getRPL1());
    }

    pcSlice->applyReferencePictureListBasedMarking(rcListPic, pcSlice->getRPL0(), pcSlice->getRPL1());

    if(pcSlice->getTLayer() > 0
      && !(pcSlice->getNalUnitType() == NAL_UNIT_CODED_SLICE_RADL     // Check if not a leading picture
        || pcSlice->getNalUnitType() == NAL_UNIT_CODED_SLICE_RASL)
        )
    {
    if (pcSlice->isStepwiseTemporalLayerSwitchingPointCandidate(rcListPic))
      {
        bool isSTSA=true;
        for(int ii=iGOPid+1;(ii<m_pcCfg->getGOPSize() && isSTSA==true);ii++)
        {
          int lTid = m_pcCfg->getRPLEntry(0, ii).m_temporalId;

          if (lTid == pcSlice->getTLayer())
          {
            const ReferencePictureList* rpl0 = pcSlice->getSPS()->getRPLList0()->getReferencePictureList(ii);
            for (int jj = 0; jj < pcSlice->getRPL0()->getNumberOfActivePictures(); jj++)
            {
              int tPoc = m_pcCfg->getRPLEntry(0, ii).m_POC + rpl0->getRefPicIdentifier(jj);
              int kk = 0;
              for (kk = 0; kk<m_pcCfg->getGOPSize(); kk++)
              {
                if (m_pcCfg->getRPLEntry(0, kk).m_POC == tPoc)
                {
                  break;
                }
              }
              int tTid = m_pcCfg->getRPLEntry(0, kk).m_temporalId;
              if (tTid >= pcSlice->getTLayer())
              {
                isSTSA = false;
                break;
              }
            }
            const ReferencePictureList* rpl1 = pcSlice->getSPS()->getRPLList1()->getReferencePictureList(ii);
            for (int jj = 0; jj < pcSlice->getRPL1()->getNumberOfActivePictures(); jj++)
            {
              int tPoc = m_pcCfg->getRPLEntry(1, ii).m_POC + rpl1->getRefPicIdentifier(jj);
              int kk = 0;
              for (kk = 0; kk<m_pcCfg->getGOPSize(); kk++)
              {
                if (m_pcCfg->getRPLEntry(1, kk).m_POC == tPoc)
                {
                  break;
                }
              }
              int tTid = m_pcCfg->getRPLEntry(1, kk).m_temporalId;
              if (tTid >= pcSlice->getTLayer())
              {
                isSTSA = false;
                break;
              }
            }
          }
        }
        if(isSTSA==true)
        {
          pcSlice->setNalUnitType(NAL_UNIT_CODED_SLICE_STSA);
        }
      }
    }

    if (m_pcCfg->getUseCompositeRef() && getUseLTRef() && (pocCurr > getLastLTRefPoc()))
    {
      pcSlice->setNumRefIdx(REF_PIC_LIST_0, (pcSlice->isIntra()) ? 0 : min(m_pcCfg->getRPLEntry(0, iGOPid).m_numRefPicsActive + 1, pcSlice->getRPL0()->getNumberOfActivePictures()));
      pcSlice->setNumRefIdx(REF_PIC_LIST_1, (!pcSlice->isInterB()) ? 0 : min(m_pcCfg->getRPLEntry(1, iGOPid).m_numRefPicsActive + 1, pcSlice->getRPL1()->getNumberOfActivePictures()));
    }
    else
    {
      pcSlice->setNumRefIdx(REF_PIC_LIST_0, (pcSlice->isIntra()) ? 0 : pcSlice->getRPL0()->getNumberOfActivePictures());
      pcSlice->setNumRefIdx(REF_PIC_LIST_1, (!pcSlice->isInterB()) ? 0 : pcSlice->getRPL1()->getNumberOfActivePictures());
    }
    if (m_pcCfg->getUseCompositeRef() && getPrepareLTRef()) {
      arrangeCompositeReference(pcSlice, rcListPic, pocCurr);
    }
    //  Set reference list
    pcSlice->constructRefPicList(rcListPic);
#if JVET_O1164_RPR
#if JVET_O0299_APS_SCALINGLIST
    pcSlice->scaleRefPicList( scaledRefPic, m_pcEncLib->getApss(), pcSlice->getLmcsAPS(), pcSlice->getscalingListAPS(), false );
#else
    pcSlice->scaleRefPicList( scaledRefPic, m_pcEncLib->getApss(), pcSlice->getLmcsAPS(), false );
#endif
#endif

#if JVET_O1164_PS
    xPicInitHashME( pcPic, pcSlice->getPPS(), rcListPic );
#else
    xPicInitHashME(pcPic, pcSlice->getSPS(), rcListPic);
#endif

    if( m_pcCfg->getUseAMaxBT() )
    {
      if( !pcSlice->isIRAP() )
      {
        int refLayer = pcSlice->getDepth();
        if( refLayer > 9 ) refLayer = 9; // Max layer is 10

        if( m_bInitAMaxBT && pcSlice->getPOC() > m_uiPrevISlicePOC )
        {
          ::memset( m_uiBlkSize, 0, sizeof( m_uiBlkSize ) );
          ::memset( m_uiNumBlk,  0, sizeof( m_uiNumBlk ) );
          m_bInitAMaxBT = false;
        }

        if( refLayer >= 0 && m_uiNumBlk[refLayer] != 0 )
        {
          pcSlice->setSplitConsOverrideFlag(true);
          double dBlkSize = sqrt( ( double ) m_uiBlkSize[refLayer] / m_uiNumBlk[refLayer] );
          if( dBlkSize < AMAXBT_TH32 )
          {
            pcSlice->setMaxBTSize( 32 > MAX_BT_SIZE_INTER ? MAX_BT_SIZE_INTER : 32 );
          }
          else if( dBlkSize < AMAXBT_TH64 )
          {
            pcSlice->setMaxBTSize( 64 > MAX_BT_SIZE_INTER ? MAX_BT_SIZE_INTER : 64 );
          }
          else
          {
            pcSlice->setMaxBTSize( 128 > MAX_BT_SIZE_INTER ? MAX_BT_SIZE_INTER : 128 );
          }

          m_uiBlkSize[refLayer] = 0;
          m_uiNumBlk [refLayer] = 0;
        }
      }
      else
      {
        if( m_bInitAMaxBT )
        {
          ::memset( m_uiBlkSize, 0, sizeof( m_uiBlkSize ) );
          ::memset( m_uiNumBlk,  0, sizeof( m_uiNumBlk ) );
        }

        m_uiPrevISlicePOC = pcSlice->getPOC();
        m_bInitAMaxBT = true;
      }
    }

    //  Slice info. refinement
    if ( (pcSlice->getSliceType() == B_SLICE) && (pcSlice->getNumRefIdx(REF_PIC_LIST_1) == 0) )
    {
      pcSlice->setSliceType ( P_SLICE );
    }
    xUpdateRasInit( pcSlice );

    if ( pcSlice->getPendingRasInit() )
    {
      // this ensures that independently encoded bitstream chunks can be combined to bit-equal
      pcSlice->setEncCABACTableIdx( pcSlice->getSliceType() );
    }
    else
    {
      pcSlice->setEncCABACTableIdx( m_pcSliceEncoder->getEncCABACTableIdx() );
    }

    if (pcSlice->getSliceType() == B_SLICE)
    {
#if !JVET_O1164_RPR
#if X0038_LAMBDA_FROM_QP_CAPABILITY
      const uint32_t uiColFromL0 = calculateCollocatedFromL0Flag(pcSlice);
      pcSlice->setColFromL0Flag(uiColFromL0);
#else
      pcSlice->setColFromL0Flag(1-uiColDir);
#endif
#endif

      bool bLowDelay = true;
      int  iCurrPOC  = pcSlice->getPOC();
      int iRefIdx = 0;

      for (iRefIdx = 0; iRefIdx < pcSlice->getNumRefIdx(REF_PIC_LIST_0) && bLowDelay; iRefIdx++)
      {
        if ( pcSlice->getRefPic(REF_PIC_LIST_0, iRefIdx)->getPOC() > iCurrPOC )
        {
          bLowDelay = false;
        }
      }
      for (iRefIdx = 0; iRefIdx < pcSlice->getNumRefIdx(REF_PIC_LIST_1) && bLowDelay; iRefIdx++)
      {
        if ( pcSlice->getRefPic(REF_PIC_LIST_1, iRefIdx)->getPOC() > iCurrPOC )
        {
          bLowDelay = false;
        }
      }

      pcSlice->setCheckLDC(bLowDelay);
    }
    else
    {
      pcSlice->setCheckLDC(true);
    }

#if !X0038_LAMBDA_FROM_QP_CAPABILITY && !JVET_O1164_RPR
    uiColDir = 1-uiColDir;
#endif

    //-------------------------------------------------------------
    pcSlice->setRefPOCList();


    pcSlice->setList1IdxToList0Idx();
    
    if (m_pcEncLib->getTMVPModeId() == 2)
    {
#if JVET_O0238_PPS_OR_SLICE
      assert (m_pcEncLib->getPPSTemporalMVPEnabledIdc() == 0);
#endif
      if (iGOPid == 0) // first picture in SOP (i.e. forward B)
      {
        pcSlice->setEnableTMVPFlag(0);
      }
      else
      {
        // Note: pcSlice->getColFromL0Flag() is assumed to be always 0 and getcolRefIdx() is always 0.
        pcSlice->setEnableTMVPFlag(1);
      }
    }
#if JVET_O0238_PPS_OR_SLICE
    else if (m_pcEncLib->getTMVPModeId() == 1 && m_pcEncLib->getPPSTemporalMVPEnabledIdc() != 1)
#else
    else if (m_pcEncLib->getTMVPModeId() == 1)
#endif
    {
      pcSlice->setEnableTMVPFlag(1);
    }
    else
    {
      pcSlice->setEnableTMVPFlag(0);
    }

    // disable TMVP when current picture is the only ref picture
    if (pcSlice->isIRAP() && pcSlice->getSPS()->getIBCFlag())
    {
      pcSlice->setEnableTMVPFlag(0);
    }

#if JVET_O1164_RPR
    if( pcSlice->getSliceType() != I_SLICE && pcSlice->getEnableTMVPFlag() )
    {
      int colRefIdxL0 = -1, colRefIdxL1 = -1;

      for( int refIdx = 0; refIdx < pcSlice->getNumRefIdx( REF_PIC_LIST_0 ); refIdx++ )
      {
        int refPicWidth = pcSlice->getRefPic( REF_PIC_LIST_0, refIdx )->unscaledPic->cs->pps->getPicWidthInLumaSamples();
        int refPicHeight = pcSlice->getRefPic( REF_PIC_LIST_0, refIdx )->unscaledPic->cs->pps->getPicHeightInLumaSamples();
        int curPicWidth = pcSlice->getPPS()->getPicWidthInLumaSamples();
        int curPicHeight = pcSlice->getPPS()->getPicHeightInLumaSamples();

        if( refPicWidth == curPicWidth && refPicHeight == curPicHeight )
        {
          colRefIdxL0 = refIdx;
          break;
        }
      }

      if( pcSlice->getSliceType() == B_SLICE )
      {
        for( int refIdx = 0; refIdx < pcSlice->getNumRefIdx( REF_PIC_LIST_1 ); refIdx++ )
        {
          int refPicWidth = pcSlice->getRefPic( REF_PIC_LIST_1, refIdx )->unscaledPic->cs->pps->getPicWidthInLumaSamples();
          int refPicHeight = pcSlice->getRefPic( REF_PIC_LIST_1, refIdx )->unscaledPic->cs->pps->getPicHeightInLumaSamples();
          int curPicWidth = pcSlice->getPPS()->getPicWidthInLumaSamples();
          int curPicHeight = pcSlice->getPPS()->getPicHeightInLumaSamples();

          if( refPicWidth == curPicWidth && refPicHeight == curPicHeight )
          {
            colRefIdxL1 = refIdx;
            break;
          }
        }
      }

      if( colRefIdxL0 >= 0 && colRefIdxL1 >= 0 )
      {
        const Picture *refPicL0 = pcSlice->getRefPic( REF_PIC_LIST_0, colRefIdxL0 );
        if( !refPicL0->slices.size() )
        {
          refPicL0 = refPicL0->unscaledPic;
        }

        const Picture *refPicL1 = pcSlice->getRefPic( REF_PIC_LIST_1, colRefIdxL1 );
        if( !refPicL1->slices.size() )
        {
          refPicL1 = refPicL1->unscaledPic;
        }

        const uint32_t uiColFromL0 = refPicL0->slices[0]->getSliceQp() > refPicL1->slices[0]->getSliceQp();
        pcSlice->setColFromL0Flag( uiColFromL0 );
        pcSlice->setColRefIdx( uiColFromL0 ? colRefIdxL0 : colRefIdxL1 );
      }
      else if( colRefIdxL0 < 0 && colRefIdxL1 >= 0 )
      {
        pcSlice->setColFromL0Flag( false );
        pcSlice->setColRefIdx( colRefIdxL1 );
      }
      else if( colRefIdxL0 >= 0 && colRefIdxL1 < 0 )
      {
        pcSlice->setColFromL0Flag( true );
        pcSlice->setColRefIdx( colRefIdxL0 );
      }
      else
      {
        pcSlice->setEnableTMVPFlag( 0 );
      }
    }
#endif

    // set adaptive search range for non-intra-slices
    if (m_pcCfg->getUseASR() && !pcSlice->isIRAP())
    {
      m_pcSliceEncoder->setSearchRange(pcSlice);
    }

    bool bGPBcheck=false;
    if ( pcSlice->getSliceType() == B_SLICE)
    {
      if ( pcSlice->getNumRefIdx(RefPicList( 0 ) ) == pcSlice->getNumRefIdx(RefPicList( 1 ) ) )
      {
        bGPBcheck=true;
        int i;
        for ( i=0; i < pcSlice->getNumRefIdx(RefPicList( 1 ) ); i++ )
        {
          if ( pcSlice->getRefPOC(RefPicList(1), i) != pcSlice->getRefPOC(RefPicList(0), i) )
          {
            bGPBcheck=false;
            break;
          }
        }
      }
    }
    if(bGPBcheck)
    {
      pcSlice->setMvdL1ZeroFlag(true);
    }
    else
    {
      pcSlice->setMvdL1ZeroFlag(false);
    }

    if ( pcSlice->getSPS()->getUseSMVD() && pcSlice->getCheckLDC() == false
#if JVET_O0284_CONDITION_SMVD_MVDL1ZEROFLAG
      && pcSlice->getMvdL1ZeroFlag() == false
#endif
      )
    {
      int currPOC = pcSlice->getPOC();

      int forwardPOC = currPOC;
      int backwardPOC = currPOC;
      int ref = 0, refIdx0 = -1, refIdx1 = -1;

      // search nearest forward POC in List 0
      for ( ref = 0; ref < pcSlice->getNumRefIdx( REF_PIC_LIST_0 ); ref++ )
      {
        int poc = pcSlice->getRefPic( REF_PIC_LIST_0, ref )->getPOC();
#if JVET_O0414_SMVD_LTRP
        const bool isRefLongTerm = pcSlice->getRefPic(REF_PIC_LIST_0, ref)->longTerm;
        if ( poc < currPOC && (poc > forwardPOC || refIdx0 == -1) && !isRefLongTerm )
#else
        if ( poc < currPOC && (poc > forwardPOC || refIdx0 == -1) )
#endif
        {
          forwardPOC = poc;
          refIdx0 = ref;
        }
      }

      // search nearest backward POC in List 1
      for ( ref = 0; ref < pcSlice->getNumRefIdx( REF_PIC_LIST_1 ); ref++ )
      {
        int poc = pcSlice->getRefPic( REF_PIC_LIST_1, ref )->getPOC();
#if JVET_O0414_SMVD_LTRP
        const bool isRefLongTerm = pcSlice->getRefPic(REF_PIC_LIST_1, ref)->longTerm;
        if ( poc > currPOC && (poc < backwardPOC || refIdx1 == -1) && !isRefLongTerm )
#else
        if ( poc > currPOC && (poc < backwardPOC || refIdx1 == -1) )
#endif
        {
          backwardPOC = poc;
          refIdx1 = ref;
        }
      }

      if ( !(forwardPOC < currPOC && backwardPOC > currPOC) )
      {
        forwardPOC = currPOC;
        backwardPOC = currPOC;
        refIdx0 = -1;
        refIdx1 = -1;

        // search nearest backward POC in List 0
        for ( ref = 0; ref < pcSlice->getNumRefIdx( REF_PIC_LIST_0 ); ref++ )
        {
          int poc = pcSlice->getRefPic( REF_PIC_LIST_0, ref )->getPOC();
#if JVET_O0414_SMVD_LTRP
          const bool isRefLongTerm = pcSlice->getRefPic(REF_PIC_LIST_0, ref)->longTerm;
          if ( poc > currPOC && (poc < backwardPOC || refIdx0 == -1) && !isRefLongTerm )
#else
          if ( poc > currPOC && (poc < backwardPOC || refIdx0 == -1) )
#endif
          {
            backwardPOC = poc;
            refIdx0 = ref;
          }
        }

        // search nearest forward POC in List 1
        for ( ref = 0; ref < pcSlice->getNumRefIdx( REF_PIC_LIST_1 ); ref++ )
        {
          int poc = pcSlice->getRefPic( REF_PIC_LIST_1, ref )->getPOC();
#if JVET_O0414_SMVD_LTRP
          const bool isRefLongTerm = pcSlice->getRefPic(REF_PIC_LIST_1, ref)->longTerm;
          if ( poc < currPOC && (poc > forwardPOC || refIdx1 == -1) && !isRefLongTerm )
#else
          if ( poc < currPOC && (poc > forwardPOC || refIdx1 == -1) )
#endif
          {
            forwardPOC = poc;
            refIdx1 = ref;
          }
        }
      }

      if ( forwardPOC < currPOC && backwardPOC > currPOC )
      {
        pcSlice->setBiDirPred( true, refIdx0, refIdx1 );
      }
      else
      {
        pcSlice->setBiDirPred( false, -1, -1 );
      }
    }
    else
    {
      pcSlice->setBiDirPred( false, -1, -1 );
    }

    double lambda            = 0.0;
    int actualHeadBits       = 0;
    int actualTotalBits      = 0;
    int estimatedBits        = 0;
    int tmpBitsBeforeWriting = 0;

    xPicInitRateControl(estimatedBits, iGOPid, lambda, pcPic, pcSlice);

    uint32_t uiNumSliceSegments = 1;

    {
      pcSlice->setDefaultClpRng( *pcSlice->getSPS() );
    }

    // Allocate some coders, now the number of tiles are known.
    const uint32_t numberOfCtusInFrame = pcPic->cs->pcv->sizeInCtus;
    const int numSubstreamsColumns = (pcSlice->getPPS()->getNumTileColumnsMinus1() + 1);
    const int numSubstreamRows     = pcSlice->getPPS()->getEntropyCodingSyncEnabledFlag() ? pcPic->cs->pcv->heightInCtus : (pcSlice->getPPS()->getNumTileRowsMinus1() + 1);
    const int numSubstreams        = std::max<int> (numSubstreamRows * numSubstreamsColumns, (int) pcPic->brickMap->bricks.size());
    std::vector<OutputBitstream> substreamsOut(numSubstreams);

#if ENABLE_QPA
    pcPic->m_uEnerHpCtu.resize (numberOfCtusInFrame);
    pcPic->m_iOffsetCtu.resize (numberOfCtusInFrame);
#if ENABLE_QPA_SUB_CTU
    if (pcSlice->getPPS()->getUseDQP() && pcSlice->getPPS()->getCuQpDeltaSubdiv() > 0)
    {
      const PreCalcValues &pcv = *pcPic->cs->pcv;
#if MAX_TB_SIZE_SIGNALLING
      const unsigned   mtsLog2 = (unsigned)floorLog2(std::min (pcPic->cs->sps->getMaxTbSize(), pcv.maxCUWidth));
#else
      const unsigned   mtsLog2 = (unsigned)floorLog2(std::min<uint32_t> (MAX_TB_SIZEY, pcv.maxCUWidth));
#endif
      pcPic->m_subCtuQP.resize ((pcv.maxCUWidth >> mtsLog2) * (pcv.maxCUHeight >> mtsLog2));
    }
#endif
#endif
    if (pcSlice->getSPS()->getSAOEnabledFlag())
    {
      pcPic->resizeSAO( numberOfCtusInFrame, 0 );
      pcPic->resizeSAO( numberOfCtusInFrame, 1 );
    }

    // it is used for signalling during CTU mode decision, i.e. before ALF processing
    if( pcSlice->getSPS()->getALFEnabledFlag() )
    {
      pcPic->resizeAlfCtuEnableFlag( numberOfCtusInFrame );
#if JVET_O0090_ALF_CHROMA_FILTER_ALTERNATIVES_CTB
      pcPic->resizeAlfCtuAlternative( numberOfCtusInFrame );
#endif
      pcPic->resizeAlfCtbFilterIndex(numberOfCtusInFrame);
    }

    bool decPic = false;
    bool encPic = false;
    // test if we can skip the picture entirely or decode instead of encoding
    trySkipOrDecodePicture( decPic, encPic, *m_pcCfg, pcPic );

    pcPic->cs->slice = pcSlice; // please keep this
#if ENABLE_QPA
    if (pcSlice->getPPS()->getSliceChromaQpFlag() && CS::isDualITree (*pcSlice->getPic()->cs) && !m_pcCfg->getUsePerceptQPA() && (m_pcCfg->getSliceChromaOffsetQpPeriodicity() == 0))
#else
    if (pcSlice->getPPS()->getSliceChromaQpFlag() && CS::isDualITree (*pcSlice->getPic()->cs))
#endif
    {
      // overwrite chroma qp offset for dual tree
      pcSlice->setSliceChromaQpDelta(COMPONENT_Cb, m_pcCfg->getChromaCbQpOffsetDualTree());
      pcSlice->setSliceChromaQpDelta(COMPONENT_Cr, m_pcCfg->getChromaCrQpOffsetDualTree());
#if JVET_O0376_SPS_JOINTCBCR_FLAG
      if (pcSlice->getSPS()->getJointCbCrEnabledFlag())
      {
        pcSlice->setSliceChromaQpDelta(JOINT_CbCr, m_pcCfg->getChromaCbCrQpOffsetDualTree());
      }
#else
      pcSlice->setSliceChromaQpDelta(JOINT_CbCr, m_pcCfg->getChromaCbCrQpOffsetDualTree());
#endif
      m_pcSliceEncoder->setUpLambda(pcSlice, pcSlice->getLambdas()[0], pcSlice->getSliceQp());
    }

    xPicInitLMCS(pcPic, pcSlice);

#if JVET_O0299_APS_SCALINGLIST
    if( pcSlice->getSPS()->getScalingListFlag() && m_pcCfg->getUseScalingListId() == SCALING_LIST_FILE_READ )
    {
      pcSlice->setscalingListPresentFlag( true );
      int apsId = 0;
      pcSlice->setscalingListAPSId( apsId );

      ParameterSetMap<APS> *apsMap = m_pcEncLib->getApsMap();
      APS*  scalingListAPS = apsMap->getPS( ( apsId << NUM_APS_TYPE_LEN ) + SCALING_LIST_APS );
      assert( scalingListAPS != NULL );
      pcSlice->setscalingListAPS( scalingListAPS );
    }
#endif

    if( encPic )
    // now compress (trial encode) the various slice segments (slices, and dependent slices)
    {
      DTRACE_UPDATE( g_trace_ctx, ( std::make_pair( "poc", pocCurr ) ) );

      pcSlice->setSliceCurStartCtuTsAddr( 0 );

      uint32_t sliceIdx = 0;
      const BrickMap& tileMap = *(pcPic->brickMap);
      for(uint32_t nextCtuTsAddr = 0; nextCtuTsAddr < numberOfCtusInFrame; )
      {
        m_pcSliceEncoder->precompressSlice( pcPic );
        m_pcSliceEncoder->compressSlice   ( pcPic, false, false );

        const uint32_t curSliceEnd = pcSlice->getSliceCurEndCtuTsAddr();
        pcSlice->setSliceIndex(sliceIdx);
        if(curSliceEnd < numberOfCtusInFrame)
        {
          uint32_t independentSliceIdx = pcSlice->getIndependentSliceIdx();
          pcPic->allocateNewSlice();
          m_pcSliceEncoder->setSliceSegmentIdx      (uiNumSliceSegments);
          // prepare for next slice
          pcSlice = pcPic->slices[uiNumSliceSegments];
          CHECK(!(pcSlice->getPPS() != 0), "Unspecified error");
          pcSlice->copySliceInfo(pcPic->slices[uiNumSliceSegments - 1]);
          sliceIdx++;
          if (pcSlice->getPPS()->getRectSliceFlag())
          {
            uint32_t startTileIdx = pcSlice->getPPS()->getTopLeftBrickIdx(sliceIdx);
            uint32_t nextCtu = 0;
            uint32_t tmpSliceIdx = 0;
            while (tmpSliceIdx != startTileIdx)
            {
              nextCtu++;
              tmpSliceIdx = tileMap.getBrickIdxBsMap(nextCtu);
            }
            pcSlice->setSliceCurStartCtuTsAddr(nextCtu);
          }
          else
          {
            pcSlice->setSliceCurStartCtuTsAddr(curSliceEnd);
          }
          pcSlice->setSliceBits(0);
          independentSliceIdx++;
          pcSlice->setIndependentSliceIdx(independentSliceIdx);
          uiNumSliceSegments++;
        }
        nextCtuTsAddr = curSliceEnd;
      }

      duData.clear();

      CodingStructure& cs = *pcPic->cs;
      pcSlice = pcPic->slices[0];

      if (pcSlice->getSPS()->getUseReshaper() && m_pcReshaper->getSliceReshaperInfo().getUseSliceReshaper())
      {
        pcSlice->setLmcsEnabledFlag(true);
        int apsId = 0;
        pcSlice->setLmcsAPSId(apsId);
        for (int s = 0; s < uiNumSliceSegments; s++)
        {
          pcPic->slices[s]->setLmcsEnabledFlag(pcSlice->getLmcsEnabledFlag());
          pcPic->slices[s]->setLmcsChromaResidualScaleFlag((pcSlice->getLmcsChromaResidualScaleFlag()));
          if (pcSlice->getLmcsEnabledFlag())
          {
            //pcPic->slices[s]->setLmcsAPS(pcSlice->getLmcsAPS());
            pcPic->slices[s]->setLmcsAPSId(pcSlice->getLmcsAPSId());
          }
        }
          CHECK((m_pcReshaper->getRecReshaped() == false), "Rec picture is not reshaped!");
          pcPic->getRecoBuf(COMPONENT_Y).rspSignal(m_pcReshaper->getInvLUT());
          m_pcReshaper->setRecReshaped(false);

          pcPic->getOrigBuf().copyFrom(pcPic->getTrueOrigBuf());
      }

#if JVET_O1164_PS
      // create SAO object based on the picture size
      if( pcSlice->getSPS()->getSAOEnabledFlag() )
      {
        const uint32_t widthInCtus = ( picWidth + maxCUWidth - 1 ) / maxCUWidth;
        const uint32_t heightInCtus = ( picHeight + maxCUHeight - 1 ) / maxCUHeight;
        const uint32_t numCtuInFrame = widthInCtus * heightInCtus;

        const uint32_t log2SaoOffsetScaleLuma = pcPic->cs->slice->getPPS()->getPpsRangeExtension().getLog2SaoOffsetScale( CHANNEL_TYPE_LUMA );
        const uint32_t log2SaoOffsetScaleChroma = pcPic->cs->slice->getPPS()->getPpsRangeExtension().getLog2SaoOffsetScale( CHANNEL_TYPE_CHROMA );

        m_pcSAO->create( picWidth, picHeight, chromaFormatIDC, maxCUWidth, maxCUHeight, maxTotalCUDepth, log2SaoOffsetScaleLuma, log2SaoOffsetScaleChroma );
        m_pcSAO->destroyEncData();
        m_pcSAO->createEncData( m_pcCfg->getSaoCtuBoundary(), numCtuInFrame );
        m_pcSAO->setReshaper( m_pcReshaper );
      }

      if( !m_pcEncLib->getLoopFilterDisable() )
      {
        m_pcEncLib->getLoopFilter()->initEncPicYuvBuffer( chromaFormatIDC, picWidth, picHeight );
      }
#endif

#if JVET_O0299_APS_SCALINGLIST
      if( pcSlice->getSPS()->getScalingListFlag() && m_pcCfg->getUseScalingListId() == SCALING_LIST_FILE_READ )
      {
        pcSlice->setscalingListPresentFlag( true );
        int apsId = 0;
        pcSlice->setscalingListAPSId( apsId );
      }
      for( int s = 0; s < uiNumSliceSegments; s++ )
      {