IntraSearch.cpp

          m_CABACEstimator->residual_coding(currTU, compID);
        }
      }
    }
  }
}

uint64_t IntraSearch::xGetIntraFracBitsQT( CodingStructure &cs, Partitioner &partitioner, const bool &bLuma, const bool &bChroma, const int subTuIdx, const PartSplit ispType, CUCtx* cuCtx )
{
  m_CABACEstimator->resetBits();

  xEncIntraHeader( cs, partitioner, bLuma, bChroma, subTuIdx );
  xEncSubdivCbfQT( cs, partitioner, bLuma, bChroma, subTuIdx, ispType );

  if( bLuma )
  {
    xEncCoeffQT( cs, partitioner, COMPONENT_Y, subTuIdx, ispType, cuCtx );
  }
  if( bChroma )
  {
    xEncCoeffQT( cs, partitioner, COMPONENT_Cb, subTuIdx, ispType );
    xEncCoeffQT( cs, partitioner, COMPONENT_Cr, subTuIdx, ispType );
  }

  CodingUnit& cu = *cs.getCU(partitioner.chType);
#if !INTRA_RM_SMALL_BLOCK_SIZE_CONSTRAINTS
  if ( cuCtx && bLuma && cu.isSepTree() && ( !cu.ispMode || ( cu.lfnstIdx && subTuIdx == 0 ) || ( !cu.lfnstIdx && subTuIdx == m_ispTestedModes[cu.lfnstIdx].numTotalParts[cu.ispMode - 1] - 1 ) ) )
#else
  if (cuCtx && bLuma && CS::isDualITree(cs) && (!cu.ispMode || (cu.lfnstIdx && subTuIdx == 0) || (!cu.lfnstIdx && subTuIdx == m_ispTestedModes[cu.lfnstIdx].numTotalParts[cu.ispMode - 1] - 1)))
#endif
  {
    m_CABACEstimator->residual_lfnst_mode(cu, *cuCtx);
  }

  uint64_t fracBits = m_CABACEstimator->getEstFracBits();
  return fracBits;
}

uint64_t IntraSearch::xGetIntraFracBitsQTSingleChromaComponent( CodingStructure &cs, Partitioner &partitioner, const ComponentID compID )
{
  m_CABACEstimator->resetBits();

  if( compID == COMPONENT_Cb )
  {
    //intra mode coding
    PredictionUnit &pu = *cs.getPU( partitioner.currArea().lumaPos(), partitioner.chType );
    m_CABACEstimator->intra_chroma_pred_mode( pu );
    //xEncIntraHeader(cs, partitioner, false, true);
  }
  CHECK( partitioner.currTrDepth != 1, "error in the depth!" );
  const UnitArea &currArea = partitioner.currArea();

  TransformUnit &currTU = *cs.getTU( currArea.blocks[partitioner.chType], partitioner.chType );

  //cbf coding
  const bool prevCbf = ( compID == COMPONENT_Cr ? TU::getCbfAtDepth( currTU, COMPONENT_Cb, partitioner.currTrDepth ) : false );
  m_CABACEstimator->cbf_comp( cs, TU::getCbfAtDepth( currTU, compID, partitioner.currTrDepth ), currArea.blocks[compID], partitioner.currTrDepth - 1, prevCbf );
  //coeffs coding and cross comp coding
  if( TU::getCbf( currTU, compID ) )
  {
    m_CABACEstimator->residual_coding( currTU, compID );
  }

  uint64_t fracBits = m_CABACEstimator->getEstFracBits();
  return fracBits;
}

uint64_t IntraSearch::xGetIntraFracBitsQTChroma(TransformUnit& currTU, const ComponentID &compID)
{
  m_CABACEstimator->resetBits();
  // Include Cbf and jointCbCr flags here as we make decisions across components
  CodingStructure &cs = *currTU.cs;

  if ( currTU.jointCbCr )
  {
    const int cbfMask = ( TU::getCbf( currTU, COMPONENT_Cb ) ? 2 : 0 ) + ( TU::getCbf( currTU, COMPONENT_Cr ) ? 1 : 0 );
    m_CABACEstimator->cbf_comp( cs, cbfMask>>1, currTU.blocks[ COMPONENT_Cb ], currTU.depth, false );
    m_CABACEstimator->cbf_comp( cs, cbfMask &1, currTU.blocks[ COMPONENT_Cr ], currTU.depth, cbfMask>>1 );
    if( cbfMask )
    {
      m_CABACEstimator->joint_cb_cr( currTU, cbfMask );
    }
    if( cbfMask >> 1 )
    {
      m_CABACEstimator->residual_coding( currTU, COMPONENT_Cb );
    }
    if( cbfMask & 1 )
    {
      m_CABACEstimator->residual_coding( currTU, COMPONENT_Cr );
    }
  }
  else
  {
    if ( compID == COMPONENT_Cb )
    {
      m_CABACEstimator->cbf_comp( cs, TU::getCbf( currTU, compID ), currTU.blocks[ compID ], currTU.depth, false );
    }
    else
    {
      const bool cbCbf    = TU::getCbf( currTU, COMPONENT_Cb );
      const bool crCbf    = TU::getCbf( currTU, compID );
      const int  cbfMask  = ( cbCbf ? 2 : 0 ) + ( crCbf ? 1 : 0 );
      m_CABACEstimator->cbf_comp( cs, crCbf, currTU.blocks[ compID ], currTU.depth, cbCbf );
      m_CABACEstimator->joint_cb_cr( currTU, cbfMask );
    }
  }

  if( !currTU.jointCbCr && TU::getCbf( currTU, compID ) )
  {
    m_CABACEstimator->residual_coding( currTU, compID );
  }

  uint64_t fracBits = m_CABACEstimator->getEstFracBits();
  return fracBits;
}
#if JVET_W0103_INTRA_MTS
void IntraSearch::xSelectAMTForFullRD(TransformUnit &tu)
{
  if (!tu.blocks[COMPONENT_Y].valid())
  {
    return;
  }

  if (!tu.cu->mtsFlag)
  {
    return;
  }

  CodingStructure &cs = *tu.cs;
  m_pcRdCost->setChromaFormat(cs.sps->getChromaFormatIdc());

  const CompArea      &area = tu.blocks[COMPONENT_Y];

  const ChannelType    chType = toChannelType(COMPONENT_Y);


  PelBuf         piOrg = cs.getOrgBuf(area);
  PelBuf         piPred = cs.getPredBuf(area);
  PelBuf         piResi = cs.getResiBuf(area);


  const PredictionUnit &pu = *cs.getPU(area.pos(), chType);

  //===== init availability pattern =====

  PelBuf sharedPredTS(m_pSharedPredTransformSkip[COMPONENT_Y], area);
  initIntraPatternChType(*tu.cu, area);

  //===== get prediction signal =====
  if (PU::isMIP(pu, chType))
  {
    initIntraMip(pu, area);
    predIntraMip(COMPONENT_Y, piPred, pu);
  }
  else
  {
#if JVET_AB0155_SGPM
    if (pu.cu->sgpm)
    {
      CompArea tmpArea(COMPONENT_Y, area.chromaFormat, Position(0, 0), area.size());
      PelBuf predBuf(m_sgpmPredBuf[pu.cu->sgpmIdx], tmpArea);
      piPred.copyFrom(predBuf);
    }
    else
#endif

    predIntraAng(COMPONENT_Y, piPred, pu);
  }


  // save prediction
  sharedPredTS.copyFrom(piPred);

  const Slice           &slice = *cs.slice;
  //===== get residual signal =====
  piResi.copyFrom(piOrg);
  if (slice.getLmcsEnabledFlag() && m_pcReshape->getCTUFlag())
  {
    piResi.rspSignal(m_pcReshape->getFwdLUT());
    piResi.subtract(piPred);
  }
  else
  {
    piResi.subtract(piPred);
  }
  // do transform and calculate Coeff AbsSum for all MTS candidates
#if JVET_Y0142_ADAPT_INTRA_MTS
  int nCands = MTS_NCANDS[2];
  if (m_coeffAbsSumDCT2 >= 0 && m_coeffAbsSumDCT2 <= MTS_TH_COEFF[0])
  {
    nCands = MTS_NCANDS[0];
  }
  else if(m_coeffAbsSumDCT2 > MTS_TH_COEFF[0] && m_coeffAbsSumDCT2 <= MTS_TH_COEFF[1])
  {
    nCands = MTS_NCANDS[1];
  }
  std::vector<std::pair<int, uint64_t>> coeffAbsSum(nCands);
  for (int i = 0; i < nCands; i++)
#else
  std::vector<std::pair<int, uint64_t>> coeffAbsSum(4);
  for (int i = 0; i < 4; i++)
#endif
  {
    tu.mtsIdx[0] = i + MTS_DST7_DST7;
    uint64_t AbsSum = m_pcTrQuant->transformNxN(tu);
    coeffAbsSum[i] = { i, AbsSum };
  }
  std::stable_sort(coeffAbsSum.begin(), coeffAbsSum.end(), [](const std::pair<int, uint64_t> & l, const std::pair<int, uint64_t> & r) {return l.second < r.second; });
#if JVET_Y0142_ADAPT_INTRA_MTS
  for (int i = 0; i < nCands; i++)
#else
  for (int i = 0; i < 4; i++)
#endif
  {
    m_testAMTForFullRD[i] = coeffAbsSum[i].first;
  }
#if JVET_Y0142_ADAPT_INTRA_MTS
  m_numCandAMTForFullRD = nCands;
#else
  m_numCandAMTForFullRD = 4;
#endif
#if !JVET_Y0142_ADAPT_INTRA_MTS
  if (m_pcEncCfg->getUseFastLFNST())
  {
    double skipThreshold = 1.0 + 1.0 / sqrt((double)(area.width*area.height));
    skipThreshold = std::max(skipThreshold, 1.03);
    for (int i = 1; i < m_numCandAMTForFullRD; i++)
    {
      if (coeffAbsSum[i].second > skipThreshold * coeffAbsSum[0].second)
      {
        m_numCandAMTForFullRD = i;
        break;
      }
    }
  }
#endif
}
#endif
void IntraSearch::xIntraCodingTUBlock(TransformUnit &tu, const ComponentID &compID, Distortion& ruiDist, const int &default0Save1Load2, uint32_t* numSig, std::vector<TrMode>* trModes, const bool loadTr)
{
  if (!tu.blocks[compID].valid())
  {
    return;
  }

  CodingStructure &cs                       = *tu.cs;
  m_pcRdCost->setChromaFormat(cs.sps->getChromaFormatIdc());

  const CompArea      &area                 = tu.blocks[compID];
  const SPS           &sps                  = *cs.sps;
#if JVET_V0094_BILATERAL_FILTER || JVET_X0071_CHROMA_BILATERAL_FILTER
  const PPS           &pps                  = *cs.pps;
#endif

  const ChannelType    chType               = toChannelType(compID);
  const int            bitDepth             = sps.getBitDepth(chType);

  PelBuf         piOrg                      = cs.getOrgBuf    (area);
  PelBuf         piPred                     = cs.getPredBuf   (area);
  PelBuf         piResi                     = cs.getResiBuf   (area);
  PelBuf         piReco                     = cs.getRecoBuf   (area);

#if JVET_AB0061_ITMP_BV_FOR_IBC
  PredictionUnit &pu = *cs.getPU(area.pos(), chType);
#else
  const PredictionUnit &pu                  = *cs.getPU(area.pos(), chType);
#endif
  const uint32_t           uiChFinalMode        = PU::getFinalIntraMode(pu, chType);

  //===== init availability pattern =====
  CHECK( tu.jointCbCr && compID == COMPONENT_Cr, "wrong combination of compID and jointCbCr" );
  bool jointCbCr = tu.jointCbCr && compID == COMPONENT_Cb;

  if (compID == COMPONENT_Y)
  {
    PelBuf sharedPredTS( m_pSharedPredTransformSkip[compID], area );
    if( default0Save1Load2 != 2 )
    {
      bool predRegDiffFromTB = CU::isPredRegDiffFromTB(*tu.cu, compID);
      bool firstTBInPredReg = CU::isFirstTBInPredReg(*tu.cu, compID, area);
      CompArea areaPredReg(COMPONENT_Y, tu.chromaFormat, area);
      if (tu.cu->ispMode && isLuma(compID))
      {
        if (predRegDiffFromTB)
        {
          if (firstTBInPredReg)
          {
            CU::adjustPredArea(areaPredReg);
            initIntraPatternChTypeISP(*tu.cu, areaPredReg, piReco);
          }
        }
        else
        {
          initIntraPatternChTypeISP(*tu.cu, area, piReco);
        }
      }
      else
      {
        initIntraPatternChType(*tu.cu, area);
      }

      //===== get prediction signal =====
      if(compID != COMPONENT_Y && !tu.cu->bdpcmModeChroma && PU::isLMCMode(uiChFinalMode))
      {
        xGetLumaRecPixels( pu, area );
        predIntraChromaLM( compID, piPred, pu, area, uiChFinalMode );
      }
      else
      {
#if JVET_V0130_INTRA_TMP
        if( PU::isTmp( pu, chType ) )
        {
          int foundCandiNum;
#if JVET_W0069_TMP_BOUNDARY
          RefTemplateType tempType = getRefTemplateType( *(tu.cu), tu.cu->blocks[COMPONENT_Y] );
          if( tempType != NO_TEMPLATE )
          {
#if TMP_FAST_ENC
            generateTMPrediction(piPred.buf, piPred.stride, pu.Y(), foundCandiNum, tu.cu);
#if JVET_AB0061_ITMP_BV_FOR_IBC
            pu.interDir = 1;             // use list 0 for IBC mode
            pu.refIdx[REF_PIC_LIST_0] = MAX_NUM_REF;   // last idx in the list
            pu.mv->set(m_tempLibFast.getX() << MV_FRACTIONAL_BITS_INTERNAL, m_tempLibFast.getY() << MV_FRACTIONAL_BITS_INTERNAL);
            pu.bv.set(m_tempLibFast.getX(), m_tempLibFast.getY());
#endif
#else
            getTargetTemplate( tu.cu, pu.lwidth(), pu.lheight(), tempType );
            candidateSearchIntra( tu.cu, pu.lwidth(), pu.lheight(), tempType );
            generateTMPrediction( piPred.buf, piPred.stride, pu.lwidth(), pu.lheight(), foundCandiNum );
#if JVET_AB0061_ITMP_BV_FOR_IBC
            pu.interDir               = 1;             // use list 0 for IBC mode
            pu.refIdx[REF_PIC_LIST_0] = MAX_NUM_REF;   // last idx in the list
            pu.mv->set(m_tempLibFast.getX() << MV_FRACTIONAL_BITS_INTERNAL, m_tempLibFast.getY() << MV_FRACTIONAL_BITS_INTERNAL);
            pu.bv.set(m_tempLibFast.getX(), m_tempLibFast.getY());
#endif
#endif
          }
          else
          {
            foundCandiNum = 1;
            generateTmDcPrediction( piPred.buf, piPred.stride, pu.lwidth(), pu.lheight(), 1 << (tu.cu->cs->sps->getBitDepth( CHANNEL_TYPE_LUMA ) - 1) );
#if JVET_AB0061_ITMP_BV_FOR_IBC
            pu.interDir               = 1;             // use list 0 for IBC mode
            pu.refIdx[REF_PIC_LIST_0] = MAX_NUM_REF;   // last idx in the list
            pu.mv->set(0, 0);
            pu.bv.set(0, 0);
#endif
          }
#else
          getTargetTemplate( tu.cu, pu.lwidth(), pu.lheight() );
          candidateSearchIntra( tu.cu, pu.lwidth(), pu.lheight() );
          generateTMPrediction( piPred.buf, piPred.stride, pu.lwidth(), pu.lheight(), foundCandiNum );
#endif
          CHECK( foundCandiNum < 1, "" );
        }
        else if( PU::isMIP( pu, chType ) )
#else
        if( PU::isMIP( pu, chType ) )
#endif
        {
          initIntraMip( pu, area );
#if JVET_AB0067_MIP_DIMD_LFNST
          predIntraMip( compID, piPred, pu, pu.cu->lfnstIdx > 0 ? true : false);
#else
          predIntraMip( compID, piPred, pu );
#endif
        }
        else
        {
          if (predRegDiffFromTB)
          {
            if (firstTBInPredReg)
            {
              PelBuf piPredReg = cs.getPredBuf(areaPredReg);
              predIntraAng(compID, piPredReg, pu);
            }
          }
          else
          {
#if JVET_AB0155_SGPM
            if (pu.cu->sgpm &&compID == COMPONENT_Y)
            {
              CompArea tmpArea(COMPONENT_Y, area.chromaFormat, Position(0, 0), area.size());
              PelBuf   predBuf(m_sgpmPredBuf[pu.cu->sgpmIdx], tmpArea);
              piPred.copyFrom(predBuf);
            }
            else
#endif

            predIntraAng(compID, piPred, pu);
          }
#if JVET_Z0050_DIMD_CHROMA_FUSION
          if (compID != COMPONENT_Y && pu.isChromaFusion)
          {
            geneChromaFusionPred(compID, piPred, pu);
          }
#endif
        }
      }

      // save prediction
      if( default0Save1Load2 == 1 )
      {
        sharedPredTS.copyFrom( piPred );
      }
    }
    else
    {
      // load prediction
      piPred.copyFrom( sharedPredTS );
    }
  }


  DTRACE( g_trace_ctx, D_PRED, "@(%4d,%4d) [%2dx%2d] IMode=%d\n", tu.lx(), tu.ly(), tu.lwidth(), tu.lheight(), uiChFinalMode );
  //DTRACE_PEL_BUF( D_PRED, piPred, tu, tu.cu->predMode, COMPONENT_Y );

  const Slice           &slice = *cs.slice;
  bool flag = slice.getLmcsEnabledFlag() && (slice.isIntra() || (!slice.isIntra() && m_pcReshape->getCTUFlag()));
#if JVET_W0103_INTRA_MTS
  if (!tu.cu->mtsFlag && isLuma(compID))
#else
  if (isLuma(compID))
#endif
  {
    //===== get residual signal =====
    piResi.copyFrom( piOrg  );
    if (slice.getLmcsEnabledFlag() && m_pcReshape->getCTUFlag() && compID == COMPONENT_Y)
    {
      piResi.rspSignal( m_pcReshape->getFwdLUT() );
      piResi.subtract( piPred );
    }
    else
    {
      piResi.subtract( piPred );
    }
  }

  //===== transform and quantization =====
  //--- init rate estimation arrays for RDOQ ---
  //--- transform and quantization           ---
  TCoeff uiAbsSum = 0;

  const QpParam cQP(tu, compID);

#if RDOQ_CHROMA_LAMBDA
  m_pcTrQuant->selectLambda(compID);
#endif

  flag =flag && (tu.blocks[compID].width*tu.blocks[compID].height > 4);
  if (flag && isChroma(compID) && slice.getPicHeader()->getLmcsChromaResidualScaleFlag() )
  {
    int cResScaleInv = tu.getChromaAdj();
    double cResScale = (double)(1 << CSCALE_FP_PREC) / (double)cResScaleInv;
    m_pcTrQuant->setLambda(m_pcTrQuant->getLambda() / (cResScale*cResScale));
  }

  PelBuf          crOrg;
  PelBuf          crPred;
  PelBuf          crResi;
  PelBuf          crReco;

  if (isChroma(compID))
  {
    const CompArea &crArea = tu.blocks[ COMPONENT_Cr ];
    crOrg  = cs.getOrgBuf  ( crArea );
    crPred = cs.getPredBuf ( crArea );
    crResi = cs.getResiBuf ( crArea );
    crReco = cs.getRecoBuf ( crArea );
  }

  if ( jointCbCr )
  {
    // Lambda is loosened for the joint mode with respect to single modes as the same residual is used for both chroma blocks
    const int    absIct = abs( TU::getICTMode(tu) );
    const double lfact  = ( absIct == 1 || absIct == 3 ? 0.8 : 0.5 );
    m_pcTrQuant->setLambda( lfact * m_pcTrQuant->getLambda() );
  }
  if ( sps.getJointCbCrEnabledFlag() && isChroma(compID) && (tu.cu->cs->slice->getSliceQp() > 18) )
  {
    m_pcTrQuant->setLambda( 1.3 * m_pcTrQuant->getLambda() );
  }

  if( isLuma(compID) )
  {
    if (trModes)
    {
#if JVET_Y0142_ADAPT_INTRA_MTS
      m_pcTrQuant->transformNxN(tu, compID, cQP, trModes, 8);
#else
      m_pcTrQuant->transformNxN(tu, compID, cQP, trModes, m_pcEncCfg->getMTSIntraMaxCand());
#endif
      tu.mtsIdx[compID] = trModes->at(0).first;
    }

    if (!(m_pcEncCfg->getCostMode() == COST_LOSSLESS_CODING && slice.isLossless() && tu.mtsIdx[compID] == 0) || tu.cu->bdpcmMode != 0)
    {
      m_pcTrQuant->transformNxN(tu, compID, cQP, uiAbsSum, m_CABACEstimator->getCtx(), loadTr);
    }

    DTRACE(g_trace_ctx, D_TU_ABS_SUM, "%d: comp=%d, abssum=%d\n", DTRACE_GET_COUNTER(g_trace_ctx, D_TU_ABS_SUM), compID,
           uiAbsSum);

    if (tu.cu->ispMode && isLuma(compID) && CU::isISPLast(*tu.cu, area, area.compID) && CU::allLumaCBFsAreZero(*tu.cu))
    {
      // ISP has to have at least one non-zero CBF
      ruiDist = MAX_INT;
      return;
    }
#if JVET_Y0142_ADAPT_INTRA_MTS
    if (isLuma(compID) && tu.mtsIdx[compID] >= MTS_DST7_DST7)
    {
      bool signHiding = cs.slice->getSignDataHidingEnabledFlag();
      CoeffCodingContext  cctx(tu, compID, signHiding);
      const TCoeff*       coeff = tu.getCoeffs(compID).buf;
      int          scanPosLast = -1;
      uint64_t     coeffAbsSum = 0;

      for (int scanPos = 0; scanPos < cctx.maxNumCoeff(); scanPos++)
      {
        unsigned blkPos = cctx.blockPos(scanPos);
        if (coeff[blkPos])
        {
          scanPosLast = scanPos;
          coeffAbsSum += abs(coeff[blkPos]);
        }
      }
      int nCands = (coeffAbsSum > MTS_TH_COEFF[1]) ? MTS_NCANDS[2] : (coeffAbsSum > MTS_TH_COEFF[0]) ? MTS_NCANDS[1] : MTS_NCANDS[0];
      bool isInvalid = (scanPosLast <= 0) || ((tu.mtsIdx[COMPONENT_Y] - MTS_DST7_DST7) >= nCands);
      if (isInvalid)
      {
        m_validMTSReturn = false;
        ruiDist = MAX_INT;
        return;
      }
    }
#endif
    if ((m_pcEncCfg->getCostMode() == COST_LOSSLESS_CODING && slice.isLossless() && tu.mtsIdx[compID] == 0)
        && 0 == tu.cu->bdpcmMode)
    {
      uiAbsSum = 0;
      tu.getCoeffs(compID).fill(0);
      TU::setCbfAtDepth(tu, compID, tu.depth, 0);
    }

    //--- inverse transform ---
    if (uiAbsSum > 0)
    {
      m_pcTrQuant->invTransformNxN(tu, compID, piResi, cQP);
    }
    else
    {
      piResi.fill(0);
    }
  }
  else // chroma
  {
    int         codedCbfMask  = 0;
    ComponentID codeCompId    = (tu.jointCbCr ? (tu.jointCbCr >> 1 ? COMPONENT_Cb : COMPONENT_Cr) : compID);
    const QpParam qpCbCr(tu, codeCompId);

    if( tu.jointCbCr )
    {
      ComponentID otherCompId = ( codeCompId==COMPONENT_Cr ? COMPONENT_Cb : COMPONENT_Cr );
      tu.getCoeffs( otherCompId ).fill(0); // do we need that?
      TU::setCbfAtDepth (tu, otherCompId, tu.depth, false );
    }
    PelBuf& codeResi = ( codeCompId == COMPONENT_Cr ? crResi : piResi );
    uiAbsSum = 0;

    if (trModes)
    {
      m_pcTrQuant->transformNxN(tu, codeCompId, qpCbCr, trModes, m_pcEncCfg->getMTSIntraMaxCand());
      tu.mtsIdx[codeCompId] = trModes->at(0).first;
      if (tu.jointCbCr)
      {
        tu.mtsIdx[(codeCompId == COMPONENT_Cr) ? COMPONENT_Cb : COMPONENT_Cr] = MTS_DCT2_DCT2;
      }
    }
    // encoder bugfix: Set loadTr to aovid redundant transform process
    if (!(m_pcEncCfg->getCostMode() == COST_LOSSLESS_CODING && slice.isLossless() && tu.mtsIdx[compID] == 0) || tu.cu->bdpcmModeChroma != 0)
    {
        m_pcTrQuant->transformNxN(tu, codeCompId, qpCbCr, uiAbsSum, m_CABACEstimator->getCtx(), loadTr);
    }
    if ((m_pcEncCfg->getCostMode() == COST_LOSSLESS_CODING && slice.isLossless() && tu.mtsIdx[compID] == 0) && 0 == tu.cu->bdpcmModeChroma)
    {
        uiAbsSum = 0;
        tu.getCoeffs(compID).fill(0);
        TU::setCbfAtDepth(tu, compID, tu.depth, 0);
    }

    DTRACE( g_trace_ctx, D_TU_ABS_SUM, "%d: comp=%d, abssum=%d\n", DTRACE_GET_COUNTER( g_trace_ctx, D_TU_ABS_SUM ), codeCompId, uiAbsSum );
    if( uiAbsSum > 0 )
    {
      m_pcTrQuant->invTransformNxN(tu, codeCompId, codeResi, qpCbCr);
      codedCbfMask += ( codeCompId == COMPONENT_Cb ? 2 : 1 );
    }
    else
    {
      codeResi.fill(0);
    }

    if( tu.jointCbCr )
    {
      if( tu.jointCbCr == 3 && codedCbfMask == 2 )
      {
        codedCbfMask = 3;
        TU::setCbfAtDepth (tu, COMPONENT_Cr, tu.depth, true );
      }
      if( tu.jointCbCr != codedCbfMask )
      {
        ruiDist = std::numeric_limits<Distortion>::max();
        return;
      }
      m_pcTrQuant->invTransformICT( tu, piResi, crResi );
      uiAbsSum = codedCbfMask;
    }
  }

  //===== reconstruction =====
  if ( flag && uiAbsSum > 0 && isChroma(compID) && slice.getPicHeader()->getLmcsChromaResidualScaleFlag() )
  {
    piResi.scaleSignal(tu.getChromaAdj(), 0, tu.cu->cs->slice->clpRng(compID));
    if( jointCbCr )
    {
      crResi.scaleSignal(tu.getChromaAdj(), 0, tu.cu->cs->slice->clpRng(COMPONENT_Cr));
    }
  }

  if (slice.getLmcsEnabledFlag() && m_pcReshape->getCTUFlag() && compID == COMPONENT_Y)
  {
    CompArea      tmpArea(COMPONENT_Y, area.chromaFormat, Position(0,0), area.size());
    PelBuf tmpPred = m_tmpStorageLCU.getBuf(tmpArea);
    tmpPred.copyFrom(piPred);
    piReco.reconstruct(tmpPred, piResi, cs.slice->clpRng(compID));
  }
  else
  {
    piReco.reconstruct(piPred, piResi, cs.slice->clpRng( compID ));
    if( jointCbCr )
    {
      crReco.reconstruct(crPred, crResi, cs.slice->clpRng( COMPONENT_Cr ));
    }
  }
#if SIGN_PREDICTION
#if INTRA_TRANS_ENC_OPT 
  bool doSignPrediction = true;
  if (isLuma(compID) && ((tu.mtsIdx[COMPONENT_Y] > MTS_SKIP) || (CS::isDualITree(cs) && tu.cu->lfnstIdx && !tu.cu->ispMode)))
  {
    bool signHiding = cs.slice->getSignDataHidingEnabledFlag();
    CoeffCodingContext  cctx(tu, COMPONENT_Y, signHiding);
    int scanPosLast = -1;
    TCoeff* coeff = tu.getCoeffs(compID).buf;
    for (int scanPos = cctx.maxNumCoeff() - 1; scanPos >= 0; scanPos--)
    {
      unsigned blkPos = cctx.blockPos(scanPos);
      if (coeff[blkPos])
      {
        scanPosLast = scanPos;
        break;
      }
    }
    if (scanPosLast < 1)
    {
      doSignPrediction = false;
    }
  }
#endif

  if ( sps.getNumPredSigns() > 0)
  {
#if INTRA_TRANS_ENC_OPT
    if (doSignPrediction)
    {
#endif
      bool bJccrWithCr = tu.jointCbCr && !(tu.jointCbCr >> 1);
      bool bIsJccr = tu.jointCbCr && isChroma(compID);
      ComponentID signPredCompID = bIsJccr ? (bJccrWithCr ? COMPONENT_Cr : COMPONENT_Cb) : compID;
      bool reshapeChroma = flag && (TU::getCbf(tu, signPredCompID) || tu.jointCbCr) && isChroma(signPredCompID) && slice.getPicHeader()->getLmcsChromaResidualScaleFlag();
      m_pcTrQuant->predCoeffSigns(tu, compID, reshapeChroma);
#if INTRA_TRANS_ENC_OPT
    }
#endif
  }

#if INTRA_TRANS_ENC_OPT 
  if (doSignPrediction)
  {
#endif
#endif
#if JVET_V0094_BILATERAL_FILTER
    CompArea      tmpArea1(COMPONENT_Y, area.chromaFormat, Position(0, 0), area.size());
    PelBuf tmpRecLuma;
    if(isLuma(compID))
    {
      tmpRecLuma = m_tmpStorageLCU.getBuf(tmpArea1);
      tmpRecLuma.copyFrom(piReco);
    }
#if JVET_X0071_CHROMA_BILATERAL_FILTER
    CompArea tmpArea2(compID, area.chromaFormat, Position(0, 0), area.size());
    PelBuf tmpRecChroma;
    if(isChroma(compID))
    {
      tmpRecChroma = m_tmpStorageLCU.getBuf(tmpArea2);
      tmpRecChroma.copyFrom(piReco);
    }
#endif
  //===== update distortion =====
#if WCG_EXT
  
    if (m_pcEncCfg->getLumaLevelToDeltaQPMapping().isEnabled() || (m_pcEncCfg->getLmcs()
      && slice.getLmcsEnabledFlag() && (m_pcReshape->getCTUFlag() || (isChroma(compID) && m_pcEncCfg->getReshapeIntraCMD()))))
    {
    
      const CPelBuf orgLuma = cs.getOrgBuf( cs.area.blocks[COMPONENT_Y] );
      if (compID == COMPONENT_Y)
      {
        if(!(m_pcEncCfg->getLumaLevelToDeltaQPMapping().isEnabled()))
        {
          tmpRecLuma.rspSignal(m_pcReshape->getInvLUT());
        }

        if (pps.getUseBIF() /*&& (uiAbsSum > 0)*/ && isLuma(compID) && (tu.cu->qp > 17) && (128 > std::max(tu.lumaSize().width, tu.lumaSize().height)))
        {
          CompArea compArea = tu.blocks[compID];
          PelBuf recIPredBuf = cs.slice->getPic()->getRecoBuf(compArea);
          if(!(m_pcEncCfg->getLumaLevelToDeltaQPMapping().isEnabled()))
          {
            m_bilateralFilter->bilateralFilterRDOdiamond5x5(tmpRecLuma, tmpRecLuma, tmpRecLuma, tu.cu->qp, recIPredBuf, cs.slice->clpRng(compID), tu, true, true, m_pcReshape->getInvLUT());
          }
          else
          {
            std::vector<Pel> invLUT;
            m_bilateralFilter->bilateralFilterRDOdiamond5x5(tmpRecLuma, tmpRecLuma, tmpRecLuma, tu.cu->qp, recIPredBuf, cs.slice->clpRng(compID), tu, true, false, invLUT);
          }
        }
      
        ruiDist += m_pcRdCost->getDistPart(piOrg, tmpRecLuma, sps.getBitDepth(toChannelType(compID)), compID, DF_SSE_WTD, &orgLuma);
      }
      else
      {
#if JVET_X0071_CHROMA_BILATERAL_FILTER
        if(pps.getUseChromaBIF() && isChroma(compID) && (tu.cu->qp > 17))
        {
          CompArea compArea = tu.blocks[compID];
          PelBuf recIPredBuf = cs.slice->getPic()->getRecoBuf(compArea);
          bool isCb = compID == COMPONENT_Cb ? true : false;
          m_bilateralFilter->bilateralFilterRDOdiamond5x5Chroma(tmpRecChroma, tmpRecChroma, tmpRecChroma, tu.cu->qp, recIPredBuf, cs.slice->clpRng(compID), tu, true, isCb);
        }
        ruiDist += m_pcRdCost->getDistPart(piOrg, tmpRecChroma, bitDepth, compID, DF_SSE_WTD, &orgLuma);
#else
        ruiDist += m_pcRdCost->getDistPart(piOrg, piReco, bitDepth, compID, DF_SSE_WTD, &orgLuma);
#endif
        if( jointCbCr )
        {
#if JVET_X0071_CHROMA_BILATERAL_FILTER
          if(compID == COMPONENT_Cr)
          {
            ruiDist += m_pcRdCost->getDistPart(crOrg, tmpRecChroma, bitDepth, COMPONENT_Cr, DF_SSE_WTD, &orgLuma);
          }
          else
          {
            ruiDist += m_pcRdCost->getDistPart(crOrg, crReco, bitDepth, COMPONENT_Cr, DF_SSE_WTD, &orgLuma);
          }
#else
          ruiDist += m_pcRdCost->getDistPart(crOrg, crReco, bitDepth, COMPONENT_Cr, DF_SSE_WTD, &orgLuma);
#endif
        }
      }
    }
    else
#endif
    {
      if(isLuma(compID))
      {
        if (pps.getUseBIF() /*&& (uiAbsSum > 0)*/ && isLuma(compID) && (tu.cu->qp > 17) && (128 > std::max(tu.lumaSize().width, tu.lumaSize().height)))
        {
          CompArea compArea = tu.blocks[compID];
          PelBuf recIPredBuf = cs.slice->getPic()->getRecoBuf(compArea);
          std::vector<Pel> invLUT;
          m_bilateralFilter->bilateralFilterRDOdiamond5x5(tmpRecLuma, tmpRecLuma, tmpRecLuma, tu.cu->qp, recIPredBuf, cs.slice->clpRng(compID), tu, true, false, invLUT);
        }
      
        ruiDist += m_pcRdCost->getDistPart( piOrg, tmpRecLuma, bitDepth, compID, DF_SSE );
      }
      else
      {
#if JVET_X0071_CHROMA_BILATERAL_FILTER
        if (pps.getUseChromaBIF() && isChroma(compID) && (tu.cu->qp > 17))
        {
          CompArea compArea = tu.blocks[compID];
          PelBuf recIPredBuf = cs.slice->getPic()->getRecoBuf(compArea);
          bool isCb = compID == COMPONENT_Cb ? true : false;
          m_bilateralFilter->bilateralFilterRDOdiamond5x5Chroma(tmpRecChroma, tmpRecChroma, tmpRecChroma, tu.cu->qp, recIPredBuf, cs.slice->clpRng(compID), tu, true, isCb);
        }
        ruiDist += m_pcRdCost->getDistPart( piOrg, tmpRecChroma, bitDepth, compID, DF_SSE );
#else
        ruiDist += m_pcRdCost->getDistPart( piOrg, piReco, bitDepth, compID, DF_SSE );
#endif
        if( jointCbCr )
        {
#if JVET_X0071_CHROMA_BILATERAL_FILTER
          if(compID == COMPONENT_Cr)
          {
            ruiDist += m_pcRdCost->getDistPart( crOrg, tmpRecChroma, bitDepth, COMPONENT_Cr, DF_SSE );
          }
          else
          {
            ruiDist += m_pcRdCost->getDistPart( crOrg, crReco, bitDepth, COMPONENT_Cr, DF_SSE );
          }
#else
          ruiDist += m_pcRdCost->getDistPart( crOrg, crReco, bitDepth, COMPONENT_Cr, DF_SSE );
#endif
        }
      }
    }

#else
  //===== update distortion =====
#if JVET_X0071_CHROMA_BILATERAL_FILTER
    CompArea tmpArea2(compID, area.chromaFormat, Position(0, 0), area.size());
    PelBuf tmpRecChroma;
    if(isChroma(compID))
    {
      tmpRecChroma = m_tmpStorageLCU.getBuf(tmpArea2);
      tmpRecChroma.copyFrom(piReco);
    }
#if WCG_EXT
    if (m_pcEncCfg->getLumaLevelToDeltaQPMapping().isEnabled() || (m_pcEncCfg->getLmcs() && slice.getLmcsEnabledFlag() && (m_pcReshape->getCTUFlag() || (isChroma(compID) && m_pcEncCfg->getReshapeIntraCMD()))))
    {
      const CPelBuf orgLuma = cs.getOrgBuf( cs.area.blocks[COMPONENT_Y] );
      if(isLuma(compID))
      {
        if (compID == COMPONENT_Y  && !(m_pcEncCfg->getLumaLevelToDeltaQPMapping().isEnabled()))
        {
          CompArea      tmpArea1(COMPONENT_Y, area.chromaFormat, Position(0, 0), area.size());
          PelBuf tmpRecLuma = m_tmpStorageLCU.getBuf(tmpArea1);
          tmpRecLuma.rspSignal( piReco, m_pcReshape->getInvLUT() );
          ruiDist += m_pcRdCost->getDistPart(piOrg, tmpRecLuma, sps.getBitDepth(toChannelType(compID)), compID, DF_SSE_WTD, &orgLuma);
        }
        else
        {
          ruiDist += m_pcRdCost->getDistPart(piOrg, piReco, bitDepth, compID, DF_SSE_WTD, &orgLuma);
          if( jointCbCr )
          {
            ruiDist += m_pcRdCost->getDistPart(crOrg, crReco, bitDepth, COMPONENT_Cr, DF_SSE_WTD, &orgLuma);
          }
        }
      }
      else
      {
        if(pps.getUseChromaBIF() && isChroma(compID) && (tu.cu->qp > 17))
        {
          CompArea compArea = tu.blocks[compID];
          PelBuf recIPredBuf = cs.slice->getPic()->getRecoBuf(compArea);
          bool isCb = compID == COMPONENT_Cb ? true : false;
          m_bilateralFilter->bilateralFilterRDOdiamond5x5Chroma(tmpRecChroma, tmpRecChroma, tmpRecChroma, tu.cu->qp, recIPredBuf, cs.slice->clpRng(compID), tu, true, isCb);
        }
        ruiDist += m_pcRdCost->getDistPart(piOrg, tmpRecChroma, bitDepth, compID, DF_SSE_WTD, &orgLuma);
        if( jointCbCr )
        {
          if(compID == COMPONENT_Cr)
          {
            ruiDist += m_pcRdCost->getDistPart(crOrg, tmpRecChroma, bitDepth, COMPONENT_Cr, DF_SSE_WTD, &orgLuma);
          }
          else
          {
            ruiDist += m_pcRdCost->getDistPart(crOrg, crReco, bitDepth, COMPONENT_Cr, DF_SSE_WTD, &orgLuma);
          }
        }
      }
    }
    else
#endif
    {
      if(isLuma(compID))
      {
        ruiDist += m_pcRdCost->getDistPart( piOrg, piReco, bitDepth, compID, DF_SSE );
      }
      else
      {
        if (pps.getUseChromaBIF() && isChroma(compID) && (tu.cu->qp > 17))
        {
          CompArea compArea = tu.blocks[compID];
          PelBuf recIPredBuf = cs.slice->getPic()->getRecoBuf(compArea);
          bool isCb = compID == COMPONENT_Cb ? true : false;
          m_bilateralFilter->bilateralFilterRDOdiamond5x5Chroma(tmpRecChroma, tmpRecChroma, tmpRecChroma, tu.cu->qp, recIPredBuf, cs.slice->clpRng(compID), tu, true, isCb);
        }
        ruiDist += m_pcRdCost->getDistPart( piOrg, tmpRecChroma, bitDepth, compID, DF_SSE );
      }
      if( jointCbCr )
      {
        if(compID == COMPONENT_Cr)
        {
          ruiDist += m_pcRdCost->getDistPart( crOrg, tmpRecChroma, bitDepth, COMPONENT_Cr, DF_SSE );
        }
        else
        {
          ruiDist += m_pcRdCost->getDistPart( crOrg, crReco, bitDepth, COMPONENT_Cr, DF_SSE );
        }
      }
    }
#else
#if WCG_EXT
    if (m_pcEncCfg->getLumaLevelToDeltaQPMapping().isEnabled() || (m_pcEncCfg->getLmcs()
      && slice.getLmcsEnabledFlag() && (m_pcReshape->getCTUFlag() || (isChroma(compID) && m_pcEncCfg->getReshapeIntraCMD()))))
    {
      const CPelBuf orgLuma = cs.getOrgBuf( cs.area.blocks[COMPONENT_Y] );
      if (compID == COMPONENT_Y  && !(m_pcEncCfg->getLumaLevelToDeltaQPMapping().isEnabled()))
      {
        CompArea      tmpArea1(COMPONENT_Y, area.chromaFormat, Position(0, 0), area.size());
        PelBuf tmpRecLuma = m_tmpStorageLCU.getBuf(tmpArea1);
        tmpRecLuma.rspSignal( piReco, m_pcReshape->getInvLUT() );
        ruiDist += m_pcRdCost->getDistPart(piOrg, tmpRecLuma, sps.getBitDepth(toChannelType(compID)), compID, DF_SSE_WTD, &orgLuma);
      }
      else
      {
        ruiDist += m_pcRdCost->getDistPart(piOrg, piReco, bitDepth, compID, DF_SSE_WTD, &orgLuma);
        if( jointCbCr )
        {
          ruiDist += m_pcRdCost->getDistPart(crOrg, crReco, bitDepth, COMPONENT_Cr, DF_SSE_WTD, &orgLuma);
        }
      }
    }
    else
#endif
    {
      ruiDist += m_pcRdCost->getDistPart( piOrg, piReco, bitDepth, compID, DF_SSE );
      if( jointCbCr )
      {
        ruiDist += m_pcRdCost->getDistPart( crOrg, crReco, bitDepth, COMPONENT_Cr, DF_SSE );
      }
    }
#endif
#endif
#if INTRA_TRANS_ENC_OPT && SIGN_PREDICTION
  }
#endif
}

void IntraSearch::xIntraCodingACTTUBlock(TransformUnit &tu, const ComponentID &compID, Distortion& ruiDist, std::vector<TrMode>* trModes, const bool loadTr)
{
  if (!tu.blocks[compID].valid())
  {
    CHECK(1, "tu does not exist");
  }

  CodingStructure     &cs = *tu.cs;
  const SPS           &sps = *cs.sps;
  const Slice         &slice = *cs.slice;
  const CompArea      &area = tu.blocks[compID];
  const CompArea &crArea = tu.blocks[COMPONENT_Cr];

  PelBuf              piOrgResi = cs.getOrgResiBuf(area);
  PelBuf              piResi = cs.getResiBuf(area);
  PelBuf              crOrgResi = cs.getOrgResiBuf(crArea);
  PelBuf              crResi = cs.getResiBuf(crArea);
  TCoeff              uiAbsSum = 0;

  CHECK(tu.jointCbCr && compID == COMPONENT_Cr, "wrong combination of compID and jointCbCr");
  bool jointCbCr = tu.jointCbCr && compID == COMPONENT_Cb;

  m_pcRdCost->setChromaFormat(cs.sps->getChromaFormatIdc());
  if (m_pcEncCfg->getCostMode() != COST_LOSSLESS_CODING || !slice.isLossless())
  m_pcTrQuant->lambdaAdjustColorTrans(true);

  if (jointCbCr)
  {
    ComponentID compIdCode = (tu.jointCbCr >> 1 ? COMPONENT_Cb : COMPONENT_Cr);
    m_pcTrQuant->selectLambda(compIdCode);
  }
  else
  {
    m_pcTrQuant->selectLambda(compID);
  }

  bool flag = slice.getLmcsEnabledFlag() && (slice.isIntra() || (!slice.isIntra() && m_pcReshape->getCTUFlag())) && (tu.blocks[compID].width*tu.blocks[compID].height > 4);
  if (flag && isChroma(compID) && slice.getPicHeader()->getLmcsChromaResidualScaleFlag())
  {
    int    cResScaleInv = tu.getChromaAdj();
    double cResScale = (double)(1 << CSCALE_FP_PREC) / (double)cResScaleInv;
    m_pcTrQuant->setLambda(m_pcTrQuant->getLambda() / (cResScale*cResScale));
  }

  if (jointCbCr)
  {
    // Lambda is loosened for the joint mode with respect to single modes as the same residual is used for both chroma blocks
    const int    absIct = abs(TU::getICTMode(tu));
    const double lfact = (absIct == 1 || absIct == 3 ? 0.8 : 0.5);
    m_pcTrQuant->setLambda(lfact * m_pcTrQuant->getLambda());
  }
  if (sps.getJointCbCrEnabledFlag() && isChroma(compID) && (slice.getSliceQp() > 18))
  {
    m_pcTrQuant->setLambda(1.3 * m_pcTrQuant->getLambda());
  }

  if (isLuma(compID))
  {
    QpParam cQP(tu, compID);