/* 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) 2010-2019, 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
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

/** \file     EncModeCtrl.cpp
    \brief    Encoder controller for trying out specific modes
*/

#include "EncModeCtrl.h"

#include "AQp.h"
#include "RateCtrl.h"

#include "CommonLib/RdCost.h"
#include "CommonLib/CodingStructure.h"
#include "CommonLib/Picture.h"
#include "CommonLib/UnitTools.h"

#include "CommonLib/dtrace_next.h"

#include <cmath>

void EncModeCtrl::init( EncCfg *pCfg, RateCtrl *pRateCtrl, RdCost* pRdCost )
{
  m_pcEncCfg      = pCfg;
  m_pcRateCtrl    = pRateCtrl;
  m_pcRdCost      = pRdCost;
  m_fastDeltaQP   = false;
#if SHARP_LUMA_DELTA_QP
  m_lumaQPOffset  = 0;

  initLumaDeltaQpLUT();
#endif
}

bool EncModeCtrl::tryModeMaster( const EncTestMode& encTestmode, const CodingStructure &cs, Partitioner& partitioner )
{
#if ENABLE_SPLIT_PARALLELISM
  if( m_ComprCUCtxList.back().isLevelSplitParallel )
  {
    if( !parallelJobSelector( encTestmode, cs, partitioner ) )
    {
      return false;
    }
  }
#endif
  return tryMode( encTestmode, cs, partitioner );
}

void EncModeCtrl::setEarlySkipDetected()
{
  m_ComprCUCtxList.back().earlySkip = true;
}

void EncModeCtrl::xExtractFeatures( const EncTestMode encTestmode, CodingStructure& cs )
{
  CHECK( cs.features.size() < NUM_ENC_FEATURES, "Features vector is not initialized" );

  cs.features[ENC_FT_DISTORTION     ] = double( cs.dist              );
  cs.features[ENC_FT_FRAC_BITS      ] = double( cs.fracBits          );
  cs.features[ENC_FT_RD_COST        ] = double( cs.cost              );
  cs.features[ENC_FT_ENC_MODE_TYPE  ] = double( encTestmode.type     );
  cs.features[ENC_FT_ENC_MODE_OPTS  ] = double( encTestmode.opts     );
}

bool EncModeCtrl::nextMode( const CodingStructure &cs, Partitioner &partitioner )
{
  m_ComprCUCtxList.back().lastTestMode = m_ComprCUCtxList.back().testModes.back();

  m_ComprCUCtxList.back().testModes.pop_back();

  while( !m_ComprCUCtxList.back().testModes.empty() && !tryModeMaster( currTestMode(), cs, partitioner ) )
  {
    m_ComprCUCtxList.back().testModes.pop_back();
  }

  return !m_ComprCUCtxList.back().testModes.empty();
}

EncTestMode EncModeCtrl::currTestMode() const
{
  return m_ComprCUCtxList.back().testModes.back();
}

EncTestMode EncModeCtrl::lastTestMode() const
{
  return m_ComprCUCtxList.back().lastTestMode;
}

bool EncModeCtrl::anyMode() const
{
  return !m_ComprCUCtxList.back().testModes.empty();
}

void EncModeCtrl::setBest( CodingStructure& cs )
{
  if( cs.cost != MAX_DOUBLE && !cs.cus.empty() )
  {
    m_ComprCUCtxList.back().bestCS = &cs;
    m_ComprCUCtxList.back().bestCU = cs.cus[0];
    m_ComprCUCtxList.back().bestTU = cs.cus[0]->firstTU;
    m_ComprCUCtxList.back().lastTestMode = getCSEncMode( cs );
  }
}

void EncModeCtrl::xGetMinMaxQP( int& minQP, int& maxQP, const CodingStructure& cs, const Partitioner &partitioner, const int baseQP, const SPS& sps, const PPS& pps, const PartSplit splitMode )
{
  if( m_pcEncCfg->getUseRateCtrl() )
  {
    minQP = m_pcRateCtrl->getRCQP();
    maxQP = m_pcRateCtrl->getRCQP();
    return;
  }

  const unsigned subdivIncr = (splitMode == CU_QUAD_SPLIT) ? 2 : (splitMode == CU_BT_SPLIT) ? 1 : 0;
  const bool qgEnable = partitioner.currQgEnable(); // QG possible at current level
  const bool qgEnableChildren = qgEnable && ((partitioner.currSubdiv + subdivIncr) <= pps.getCuQpDeltaSubdiv()) && (subdivIncr > 0); // QG possible at next level
  const bool isLeafQG = (qgEnable && !qgEnableChildren);

  if( isLeafQG ) // QG at deepest level
  {
    int deltaQP = m_pcEncCfg->getMaxDeltaQP();
    minQP = Clip3( -sps.getQpBDOffset( CHANNEL_TYPE_LUMA ), MAX_QP, baseQP - deltaQP );
    maxQP = Clip3( -sps.getQpBDOffset( CHANNEL_TYPE_LUMA ), MAX_QP, baseQP + deltaQP );
  }
  else if( qgEnableChildren ) // more splits and not the deepest QG level
  {
    minQP = baseQP;
    maxQP = baseQP;
  }
  else // deeper than QG
  {
    minQP = cs.currQP[partitioner.chType];
    maxQP = cs.currQP[partitioner.chType];
  }
}


int EncModeCtrl::xComputeDQP( const CodingStructure &cs, const Partitioner &partitioner )
{
  Picture* picture    = cs.picture;
  unsigned uiAQDepth  = std::min( partitioner.currSubdiv/2, ( uint32_t ) picture->aqlayer.size() - 1 );
  AQpLayer* pcAQLayer = picture->aqlayer[uiAQDepth];

  double dMaxQScale   = pow( 2.0, m_pcEncCfg->getQPAdaptationRange() / 6.0 );
  double dAvgAct      = pcAQLayer->getAvgActivity();
  double dCUAct       = pcAQLayer->getActivity( cs.area.Y().topLeft() );
  double dNormAct     = ( dMaxQScale*dCUAct + dAvgAct ) / ( dCUAct + dMaxQScale*dAvgAct );
  double dQpOffset    = log( dNormAct ) / log( 2.0 ) * 6.0;
  int    iQpOffset    = int( floor( dQpOffset + 0.49999 ) );
  return iQpOffset;
}


#if SHARP_LUMA_DELTA_QP
void EncModeCtrl::initLumaDeltaQpLUT()
{
  const LumaLevelToDeltaQPMapping &mapping = m_pcEncCfg->getLumaLevelToDeltaQPMapping();

  if( !mapping.isEnabled() )
  {
    return;
  }

  // map the sparse LumaLevelToDeltaQPMapping.mapping to a fully populated linear table.

  int         lastDeltaQPValue = 0;
  std::size_t nextSparseIndex = 0;
  for( int index = 0; index < LUMA_LEVEL_TO_DQP_LUT_MAXSIZE; index++ )
  {
    while( nextSparseIndex < mapping.mapping.size() && index >= mapping.mapping[nextSparseIndex].first )
    {
      lastDeltaQPValue = mapping.mapping[nextSparseIndex].second;
      nextSparseIndex++;
    }
    m_lumaLevelToDeltaQPLUT[index] = lastDeltaQPValue;
  }
}

int EncModeCtrl::calculateLumaDQP( const CPelBuf& rcOrg )
{
  double avg = 0;

  // Get QP offset derived from Luma level
#if !WCG_EXT
  if( m_pcEncCfg->getLumaLevelToDeltaQPMapping().mode == LUMALVL_TO_DQP_AVG_METHOD )
#else
  CHECK( m_pcEncCfg->getLumaLevelToDeltaQPMapping().mode != LUMALVL_TO_DQP_AVG_METHOD, "invalid delta qp mode" );
#endif
  {
    // Use average luma value
    avg = (double) rcOrg.computeAvg();
  }
#if !WCG_EXT
  else
  {
    // Use maximum luma value
    int maxVal = 0;
    for( uint32_t y = 0; y < rcOrg.height; y++ )
    {
      for( uint32_t x = 0; x < rcOrg.width; x++ )
      {
        const Pel& v = rcOrg.at( x, y );
        if( v > maxVal )
        {
          maxVal = v;
        }
      }
    }
    // use a percentage of the maxVal
    avg = ( double ) maxVal * m_pcEncCfg->getLumaLevelToDeltaQPMapping().maxMethodWeight;
  }
#endif
  int lumaBD = m_pcEncCfg->getBitDepth(CHANNEL_TYPE_LUMA);
  int lumaIdxOrg = Clip3<int>(0, int(1 << lumaBD) - 1, int(avg + 0.5));
  int lumaIdx = lumaBD < 10 ? lumaIdxOrg << (10 - lumaBD) : lumaBD > 10 ? lumaIdxOrg >> (lumaBD - 10) : lumaIdxOrg;
  int QP = m_lumaLevelToDeltaQPLUT[lumaIdx];
  return QP;
}
#endif

#if ENABLE_SPLIT_PARALLELISM
void EncModeCtrl::copyState( const EncModeCtrl& other, const UnitArea& area )
{
  m_slice          = other.m_slice;
  m_fastDeltaQP    = other.m_fastDeltaQP;
  m_lumaQPOffset   = other.m_lumaQPOffset;
  m_runNextInParallel
                   = other.m_runNextInParallel;
  m_ComprCUCtxList = other.m_ComprCUCtxList;
}

#endif
void CacheBlkInfoCtrl::create()
{
  const unsigned numPos = MAX_CU_SIZE >> MIN_CU_LOG2;

  m_numWidths  = gp_sizeIdxInfo->numWidths();
  m_numHeights = gp_sizeIdxInfo->numHeights();

  for( unsigned x = 0; x < numPos; x++ )
  {
    for( unsigned y = 0; y < numPos; y++ )
    {
      m_codedCUInfo[x][y] = new CodedCUInfo**[m_numWidths];

      for( int wIdx = 0; wIdx < gp_sizeIdxInfo->numWidths(); wIdx++ )
      {
        if( gp_sizeIdxInfo->isCuSize( gp_sizeIdxInfo->sizeFrom( wIdx ) ) && x + ( gp_sizeIdxInfo->sizeFrom( wIdx ) >> MIN_CU_LOG2 ) <= ( MAX_CU_SIZE >> MIN_CU_LOG2 ) )
        {
          m_codedCUInfo[x][y][wIdx] = new CodedCUInfo*[gp_sizeIdxInfo->numHeights()];

          for( int hIdx = 0; hIdx < gp_sizeIdxInfo->numHeights(); hIdx++ )
          {
            if( gp_sizeIdxInfo->isCuSize( gp_sizeIdxInfo->sizeFrom( hIdx ) ) && y + ( gp_sizeIdxInfo->sizeFrom( hIdx ) >> MIN_CU_LOG2 ) <= ( MAX_CU_SIZE >> MIN_CU_LOG2 ) )
            {
              m_codedCUInfo[x][y][wIdx][hIdx] = new CodedCUInfo;
            }
            else
            {
              m_codedCUInfo[x][y][wIdx][hIdx] = nullptr;
            }
          }
        }
        else
        {
          m_codedCUInfo[x][y][wIdx] = nullptr;
        }
      }
    }
  }
}

void CacheBlkInfoCtrl::destroy()
{
  const unsigned numPos = MAX_CU_SIZE >> MIN_CU_LOG2;

  for( unsigned x = 0; x < numPos; x++ )
  {
    for( unsigned y = 0; y < numPos; y++ )
    {
      for( int wIdx = 0; wIdx < gp_sizeIdxInfo->numWidths(); wIdx++ )
      {
        if( m_codedCUInfo[x][y][wIdx] )
        {
          for( int hIdx = 0; hIdx < gp_sizeIdxInfo->numHeights(); hIdx++ )
          {
            if( m_codedCUInfo[x][y][wIdx][hIdx] )
            {
              delete m_codedCUInfo[x][y][wIdx][hIdx];
            }
          }

          delete[] m_codedCUInfo[x][y][wIdx];
        }
      }

      delete[] m_codedCUInfo[x][y];
    }
  }
}

void CacheBlkInfoCtrl::init( const Slice &slice )
{
  const unsigned numPos = MAX_CU_SIZE >> MIN_CU_LOG2;

  for( unsigned x = 0; x < numPos; x++ )
  {
    for( unsigned y = 0; y < numPos; y++ )
    {
      for( int wIdx = 0; wIdx < gp_sizeIdxInfo->numWidths(); wIdx++ )
      {
        if( m_codedCUInfo[x][y][wIdx] )
        {
          for( int hIdx = 0; hIdx < gp_sizeIdxInfo->numHeights(); hIdx++ )
          {
            if( m_codedCUInfo[x][y][wIdx][hIdx] )
            {
              memset( m_codedCUInfo[x][y][wIdx][hIdx], 0, sizeof( CodedCUInfo ) );
            }
          }
        }
      }
    }
  }

  m_slice_chblk = &slice;
#if ENABLE_SPLIT_PARALLELISM

  m_currTemporalId = 0;
#endif
}
#if ENABLE_SPLIT_PARALLELISM

void CacheBlkInfoCtrl::touch( const UnitArea& area )
{
  CodedCUInfo& cuInfo = getBlkInfo( area );
  cuInfo.temporalId = m_currTemporalId;
}

void CacheBlkInfoCtrl::copyState( const CacheBlkInfoCtrl &other, const UnitArea& area )
{
  m_slice_chblk = other.m_slice_chblk;

  m_currTemporalId = other.m_currTemporalId;

  if( m_slice_chblk->isIntra() ) return;

  const int cuSizeMask = m_slice_chblk->getSPS()->getMaxCUWidth() - 1;

  const int minPosX = ( area.lx() & cuSizeMask ) >> MIN_CU_LOG2;
  const int minPosY = ( area.ly() & cuSizeMask ) >> MIN_CU_LOG2;
  const int maxPosX = ( area.Y().bottomRight().x & cuSizeMask ) >> MIN_CU_LOG2;
  const int maxPosY = ( area.Y().bottomRight().y & cuSizeMask ) >> MIN_CU_LOG2;

  for( unsigned x = minPosX; x <= maxPosX; x++ )
  {
    for( unsigned y = minPosY; y <= maxPosY; y++ )
    {
      for( int wIdx = 0; wIdx < gp_sizeIdxInfo->numWidths(); wIdx++ )
      {
        const int width = gp_sizeIdxInfo->sizeFrom( wIdx );

        if( m_codedCUInfo[x][y][wIdx] && width <= area.lwidth() && x + ( width >> MIN_CU_LOG2 ) <= ( maxPosX + 1 ) )
        {
          for( int hIdx = 0; hIdx < gp_sizeIdxInfo->numHeights(); hIdx++ )
          {
            const int height = gp_sizeIdxInfo->sizeFrom( hIdx );

            if( gp_sizeIdxInfo->isCuSize( height ) && height <= area.lheight() && y + ( height >> MIN_CU_LOG2 ) <= ( maxPosY + 1 ) )
            {
              if( other.m_codedCUInfo[x][y][wIdx][hIdx]->temporalId > m_codedCUInfo[x][y][wIdx][hIdx]->temporalId )
              {
                *m_codedCUInfo[x][y][wIdx][hIdx] = *other.m_codedCUInfo[x][y][wIdx][hIdx];
                m_codedCUInfo[x][y][wIdx][hIdx]->temporalId = m_currTemporalId;
              }
            }
            else if( y + ( height >> MIN_CU_LOG2 ) > maxPosY + 1 )
            {
              break;;
            }
          }
        }
        else if( x + ( width >> MIN_CU_LOG2 ) > maxPosX + 1 )
        {
          break;
        }
      }
    }
  }
}
#endif

CodedCUInfo& CacheBlkInfoCtrl::getBlkInfo( const UnitArea& area )
{
  unsigned idx1, idx2, idx3, idx4;
  getAreaIdx( area.Y(), *m_slice_chblk->getPPS()->pcv, idx1, idx2, idx3, idx4 );

  return *m_codedCUInfo[idx1][idx2][idx3][idx4];
}

bool CacheBlkInfoCtrl::isSkip( const UnitArea& area )
{
  unsigned idx1, idx2, idx3, idx4;
  getAreaIdx( area.Y(), *m_slice_chblk->getPPS()->pcv, idx1, idx2, idx3, idx4 );

  return m_codedCUInfo[idx1][idx2][idx3][idx4]->isSkip;
}

bool CacheBlkInfoCtrl::isMMVDSkip(const UnitArea& area)
{
  unsigned idx1, idx2, idx3, idx4;
  getAreaIdx(area.Y(), *m_slice_chblk->getPPS()->pcv, idx1, idx2, idx3, idx4);

  return m_codedCUInfo[idx1][idx2][idx3][idx4]->isMMVDSkip;
}

void CacheBlkInfoCtrl::setMv( const UnitArea& area, const RefPicList refPicList, const int iRefIdx, const Mv& rMv )
{
  if( iRefIdx >= MAX_STORED_CU_INFO_REFS ) return;

  unsigned idx1, idx2, idx3, idx4;
  getAreaIdx( area.Y(), *m_slice_chblk->getPPS()->pcv, idx1, idx2, idx3, idx4 );

  m_codedCUInfo[idx1][idx2][idx3][idx4]->saveMv [refPicList][iRefIdx] = rMv;
  m_codedCUInfo[idx1][idx2][idx3][idx4]->validMv[refPicList][iRefIdx] = true;
#if ENABLE_SPLIT_PARALLELISM

  touch( area );
#endif
}

bool CacheBlkInfoCtrl::getMv( const UnitArea& area, const RefPicList refPicList, const int iRefIdx, Mv& rMv ) const
{
  unsigned idx1, idx2, idx3, idx4;
  getAreaIdx( area.Y(), *m_slice_chblk->getPPS()->pcv, idx1, idx2, idx3, idx4 );

  if( iRefIdx >= MAX_STORED_CU_INFO_REFS )
  {
    rMv = m_codedCUInfo[idx1][idx2][idx3][idx4]->saveMv[refPicList][0];
    return false;
  }

  rMv = m_codedCUInfo[idx1][idx2][idx3][idx4]->saveMv[refPicList][iRefIdx];
  return m_codedCUInfo[idx1][idx2][idx3][idx4]->validMv[refPicList][iRefIdx];
}

void SaveLoadEncInfoSbt::init( const Slice &slice )
{
  m_sliceSbt = &slice;
}

void SaveLoadEncInfoSbt::create()
{
  int numSizeIdx = gp_sizeIdxInfo->idxFrom( SBT_MAX_SIZE ) - MIN_CU_LOG2 + 1;
  int numPosIdx = MAX_CU_SIZE >> MIN_CU_LOG2;

  m_saveLoadSbt = new SaveLoadStructSbt***[numPosIdx];

  for( int xIdx = 0; xIdx < numPosIdx; xIdx++ )
  {
    m_saveLoadSbt[xIdx] = new SaveLoadStructSbt**[numPosIdx];
    for( int yIdx = 0; yIdx < numPosIdx; yIdx++ )
    {
      m_saveLoadSbt[xIdx][yIdx] = new SaveLoadStructSbt*[numSizeIdx];
      for( int wIdx = 0; wIdx < numSizeIdx; wIdx++ )
      {
        m_saveLoadSbt[xIdx][yIdx][wIdx] = new SaveLoadStructSbt[numSizeIdx];
      }
    }
  }
}

void SaveLoadEncInfoSbt::destroy()
{
  int numSizeIdx = gp_sizeIdxInfo->idxFrom( SBT_MAX_SIZE ) - MIN_CU_LOG2 + 1;
  int numPosIdx = MAX_CU_SIZE >> MIN_CU_LOG2;

  for( int xIdx = 0; xIdx < numPosIdx; xIdx++ )
  {
    for( int yIdx = 0; yIdx < numPosIdx; yIdx++ )
    {
      for( int wIdx = 0; wIdx < numSizeIdx; wIdx++ )
      {
        delete[] m_saveLoadSbt[xIdx][yIdx][wIdx];
      }
      delete[] m_saveLoadSbt[xIdx][yIdx];
    }
    delete[] m_saveLoadSbt[xIdx];
  }
  delete[] m_saveLoadSbt;
}

uint16_t SaveLoadEncInfoSbt::findBestSbt( const UnitArea& area, const uint32_t curPuSse )
{
  unsigned idx1, idx2, idx3, idx4;
  getAreaIdx( area.Y(), *m_sliceSbt->getPPS()->pcv, idx1, idx2, idx3, idx4 );
  SaveLoadStructSbt* pSbtSave = &m_saveLoadSbt[idx1][idx2][idx3 - MIN_CU_LOG2][idx4 - MIN_CU_LOG2];

  for( int i = 0; i < pSbtSave->numPuInfoStored; i++ )
  {
    if( curPuSse == pSbtSave->puSse[i] )
    {
      return pSbtSave->puSbt[i] + ( pSbtSave->puTrs[i] << 8 );
    }
  }

  return MAX_UCHAR + ( MAX_UCHAR << 8 );
}

bool SaveLoadEncInfoSbt::saveBestSbt( const UnitArea& area, const uint32_t curPuSse, const uint8_t curPuSbt, const uint8_t curPuTrs )
{
  unsigned idx1, idx2, idx3, idx4;
  getAreaIdx( area.Y(), *m_sliceSbt->getPPS()->pcv, idx1, idx2, idx3, idx4 );
  SaveLoadStructSbt* pSbtSave = &m_saveLoadSbt[idx1][idx2][idx3 - MIN_CU_LOG2][idx4 - MIN_CU_LOG2];

  if( pSbtSave->numPuInfoStored == SBT_NUM_SL )
  {
    return false;
  }

  pSbtSave->puSse[pSbtSave->numPuInfoStored] = curPuSse;
  pSbtSave->puSbt[pSbtSave->numPuInfoStored] = curPuSbt;
  pSbtSave->puTrs[pSbtSave->numPuInfoStored] = curPuTrs;
  pSbtSave->numPuInfoStored++;
  return true;
}

#if ENABLE_SPLIT_PARALLELISM
void SaveLoadEncInfoSbt::copyState(const SaveLoadEncInfoSbt &other)
{
  m_sliceSbt = other.m_sliceSbt;
}
#endif

void SaveLoadEncInfoSbt::resetSaveloadSbt( int maxSbtSize )
{
  int numSizeIdx = gp_sizeIdxInfo->idxFrom( maxSbtSize ) - MIN_CU_LOG2 + 1;
  int numPosIdx = MAX_CU_SIZE >> MIN_CU_LOG2;

  for( int xIdx = 0; xIdx < numPosIdx; xIdx++ )
  {
    for( int yIdx = 0; yIdx < numPosIdx; yIdx++ )
    {
      for( int wIdx = 0; wIdx < numSizeIdx; wIdx++ )
      {
        memset( m_saveLoadSbt[xIdx][yIdx][wIdx], 0, numSizeIdx * sizeof( SaveLoadStructSbt ) );
      }
    }
  }
}

bool CacheBlkInfoCtrl::getInter(const UnitArea& area)
{
  unsigned idx1, idx2, idx3, idx4;
  getAreaIdx(area.Y(), *m_slice_chblk->getPPS()->pcv, idx1, idx2, idx3, idx4);

  return m_codedCUInfo[idx1][idx2][idx3][idx4]->isInter;
}
void CacheBlkInfoCtrl::setGbiIdx(const UnitArea& area, uint8_t gBiIdx)
{
  unsigned idx1, idx2, idx3, idx4;
  getAreaIdx(area.Y(), *m_slice_chblk->getPPS()->pcv, idx1, idx2, idx3, idx4);

  m_codedCUInfo[idx1][idx2][idx3][idx4]->GBiIdx = gBiIdx;
}
uint8_t CacheBlkInfoCtrl::getGbiIdx(const UnitArea& area)
{
  unsigned idx1, idx2, idx3, idx4;
  getAreaIdx(area.Y(), *m_slice_chblk->getPPS()->pcv, idx1, idx2, idx3, idx4);

  return m_codedCUInfo[idx1][idx2][idx3][idx4]->GBiIdx;
}

#if REUSE_CU_RESULTS
static bool isTheSameNbHood( const CodingUnit &cu, const CodingStructure& cs, const Partitioner &partitioner
                            , const PredictionUnit &pu, int picW, int picH
                           )
{
  if( cu.chType != partitioner.chType )
  {
    return false;
  }

  const PartitioningStack &ps = partitioner.getPartStack();

  int i = 1;

  for( ; i < ps.size(); i++ )
  {
    if( ps[i].split != CU::getSplitAtDepth( cu, i - 1 ) )
    {
      break;
    }
  }

  const UnitArea &cmnAnc = ps[i - 1].parts[ps[i - 1].idx];
  const UnitArea cuArea  = CS::getArea( cs, cu, partitioner.chType );
//#endif

  for( int i = 0; i < cmnAnc.blocks.size(); i++ )
  {
    if( i < cuArea.blocks.size() && cuArea.blocks[i].valid() && cuArea.blocks[i].pos() != cmnAnc.blocks[i].pos() )
    {
      return false;
    }
  }

  return true;
}

void BestEncInfoCache::create( const ChromaFormat chFmt )
{
  const unsigned numPos = MAX_CU_SIZE >> MIN_CU_LOG2;

  m_numWidths  = gp_sizeIdxInfo->numWidths();
  m_numHeights = gp_sizeIdxInfo->numHeights();

  for( unsigned x = 0; x < numPos; x++ )
  {
    for( unsigned y = 0; y < numPos; y++ )
    {
      m_bestEncInfo[x][y] = new BestEncodingInfo**[m_numWidths];

      for( int wIdx = 0; wIdx < gp_sizeIdxInfo->numWidths(); wIdx++ )
      {
        if( gp_sizeIdxInfo->isCuSize( gp_sizeIdxInfo->sizeFrom( wIdx ) ) && x + ( gp_sizeIdxInfo->sizeFrom( wIdx ) >> MIN_CU_LOG2 ) <= ( MAX_CU_SIZE >> MIN_CU_LOG2 ) )
        {
          m_bestEncInfo[x][y][wIdx] = new BestEncodingInfo*[gp_sizeIdxInfo->numHeights()];

          for( int hIdx = 0; hIdx < gp_sizeIdxInfo->numHeights(); hIdx++ )
          {
            if( gp_sizeIdxInfo->isCuSize( gp_sizeIdxInfo->sizeFrom( hIdx ) ) && y + ( gp_sizeIdxInfo->sizeFrom( hIdx ) >> MIN_CU_LOG2 ) <= ( MAX_CU_SIZE >> MIN_CU_LOG2 ) )
            {
              m_bestEncInfo[x][y][wIdx][hIdx] = new BestEncodingInfo;

              int w = gp_sizeIdxInfo->sizeFrom( wIdx );
              int h = gp_sizeIdxInfo->sizeFrom( hIdx );

              const UnitArea area( chFmt, Area( 0, 0, w, h ) );

              new ( &m_bestEncInfo[x][y][wIdx][hIdx]->cu ) CodingUnit    ( area );
              new ( &m_bestEncInfo[x][y][wIdx][hIdx]->pu ) PredictionUnit( area );
#if REUSE_CU_RESULTS_WITH_MULTIPLE_TUS
              m_bestEncInfo[x][y][wIdx][hIdx]->numTus = 0;
              for( int i = 0; i < MAX_NUM_TUS; i++ )
              {
                new ( &m_bestEncInfo[x][y][wIdx][hIdx]->tus[i] ) TransformUnit( area );
              }
#else
              new ( &m_bestEncInfo[x][y][wIdx][hIdx]->tu ) TransformUnit( area );
#endif

              m_bestEncInfo[x][y][wIdx][hIdx]->poc      = -1;
              m_bestEncInfo[x][y][wIdx][hIdx]->testMode = EncTestMode();
            }
            else
            {
              m_bestEncInfo[x][y][wIdx][hIdx] = nullptr;
            }
          }
        }
        else
        {
          m_bestEncInfo[x][y][wIdx] = nullptr;
        }
      }
    }
  }
}

void BestEncInfoCache::destroy()
{
  const unsigned numPos = MAX_CU_SIZE >> MIN_CU_LOG2;

  for( unsigned x = 0; x < numPos; x++ )
  {
    for( unsigned y = 0; y < numPos; y++ )
    {
      for( int wIdx = 0; wIdx < gp_sizeIdxInfo->numWidths(); wIdx++ )
      {
        if( m_bestEncInfo[x][y][wIdx] )
        {
          for( int hIdx = 0; hIdx < gp_sizeIdxInfo->numHeights(); hIdx++ )
          {
            if( m_bestEncInfo[x][y][wIdx][hIdx] )
            {
              delete m_bestEncInfo[x][y][wIdx][hIdx];
            }
          }

          delete[] m_bestEncInfo[x][y][wIdx];
        }
      }

      delete[] m_bestEncInfo[x][y];
    }
  }

  delete[] m_pCoeff;
  delete[] m_pPcmBuf;

#if JVET_O0119_BASE_PALETTE_444
  if (m_runType != nullptr)
  {
    delete[] m_runType;
    m_runType = nullptr;
  }
  if (m_runLength != nullptr)
  {
    delete[] m_runLength;
    m_runLength = nullptr;
  }
#endif

}

void BestEncInfoCache::init( const Slice &slice )
{
  bool isInitialized = m_slice_bencinf;

  m_slice_bencinf = &slice;

  if( isInitialized ) return;

  const unsigned numPos = MAX_CU_SIZE >> MIN_CU_LOG2;

  m_numWidths  = gp_sizeIdxInfo->numWidths();
  m_numHeights = gp_sizeIdxInfo->numHeights();

  size_t numCoeff = 0;

  for( unsigned x = 0; x < numPos; x++ )
  {
    for( unsigned y = 0; y < numPos; y++ )
    {
      for( int wIdx = 0; wIdx < gp_sizeIdxInfo->numWidths(); wIdx++ )
      {
        if( m_bestEncInfo[x][y][wIdx] ) for( int hIdx = 0; hIdx < gp_sizeIdxInfo->numHeights(); hIdx++ )
        {
          if( m_bestEncInfo[x][y][wIdx][hIdx] )
          {
            for( const CompArea& blk : m_bestEncInfo[x][y][wIdx][hIdx]->cu.blocks )
            {
              numCoeff += blk.area();
            }
          }
        }
      }
    }
  }

#if REUSE_CU_RESULTS_WITH_MULTIPLE_TUS
  m_pCoeff  = new TCoeff[numCoeff*MAX_NUM_TUS];
  m_pPcmBuf = new Pel   [numCoeff*MAX_NUM_TUS];
#if JVET_O0119_BASE_PALETTE_444
  m_runType   = new bool[numCoeff*MAX_NUM_TUS];
  m_runLength = new Pel [numCoeff*MAX_NUM_TUS];
#endif
#else
  m_pCoeff  = new TCoeff[numCoeff];
  m_pPcmBuf = new Pel   [numCoeff];
#if JVET_O0119_BASE_PALETTE_444
  m_runType   = new bool[numCoeff];
  m_runLength = new Pel [numCoeff];
#endif
#endif

  TCoeff *coeffPtr = m_pCoeff;
  Pel    *pcmPtr   = m_pPcmBuf;
#if JVET_O0119_BASE_PALETTE_444
  bool   *runTypePtr   = m_runType;
  Pel    *runLengthPtr = m_runLength;
#endif

  m_dummyCS.pcv = m_slice_bencinf->getPPS()->pcv;

  for( unsigned x = 0; x < numPos; x++ )
  {
    for( unsigned y = 0; y < numPos; y++ )
    {
      for( int wIdx = 0; wIdx < gp_sizeIdxInfo->numWidths(); wIdx++ )
      {
        if( m_bestEncInfo[x][y][wIdx] ) for( int hIdx = 0; hIdx < gp_sizeIdxInfo->numHeights(); hIdx++ )
        {
          if( m_bestEncInfo[x][y][wIdx][hIdx] )
          {
            TCoeff *coeff[MAX_NUM_TBLOCKS] = { 0, };
            Pel    *pcmbf[MAX_NUM_TBLOCKS] = { 0, };
#if JVET_O0119_BASE_PALETTE_444
            bool   *runType[MAX_NUM_TBLOCKS]   = { 0, };
            Pel    *runLength[MAX_NUM_TBLOCKS] = { 0, };
#endif

#if REUSE_CU_RESULTS_WITH_MULTIPLE_TUS
            for( int i = 0; i < MAX_NUM_TUS; i++ )
            {
              TransformUnit &tu = m_bestEncInfo[x][y][wIdx][hIdx]->tus[i];
              const UnitArea &area = tu;

              for( int i = 0; i < area.blocks.size(); i++ )
              {
                coeff[i] = coeffPtr; coeffPtr += area.blocks[i].area();
                pcmbf[i] = pcmPtr;   pcmPtr += area.blocks[i].area();
#if JVET_O0119_BASE_PALETTE_444
                runType[i]   = runTypePtr;   runTypePtr   += area.blocks[i].area();
                runLength[i] = runLengthPtr; runLengthPtr += area.blocks[i].area();
#endif
              }

              tu.cs = &m_dummyCS;
#if JVET_O0119_BASE_PALETTE_444
              tu.init(coeff, pcmbf, runLength, runType);
#else
              tu.init(coeff, pcmbf);
#endif
            }
#else
            const UnitArea &area = m_bestEncInfo[x][y][wIdx][hIdx]->tu;

            for( int i = 0; i < area.blocks.size(); i++ )
            {
              coeff[i] = coeffPtr; coeffPtr += area.blocks[i].area();
              pcmbf[i] =   pcmPtr;   pcmPtr += area.blocks[i].area();
#if JVET_O0119_BASE_PALETTE_444
              runType[i] = runTypePtr;     runTypePtr += area.blocks[i].area();
              runLength[i] = runLengthPtr; runLengthPtr += area.blocks[i].area();
#endif
            }

            m_bestEncInfo[x][y][wIdx][hIdx]->tu.cs = &m_dummyCS;
#if JVET_O0119_BASE_PALETTE_444
            m_bestEncInfo[x][y][wIdx][hIdx]->tu.init(coeff, pcmbf, runLength, runType);
#else
            m_bestEncInfo[x][y][wIdx][hIdx]->tu.init( coeff, pcmbf );
#endif
#endif
          }
        }
      }
    }
  }
#if ENABLE_SPLIT_PARALLELISM

  m_currTemporalId = 0;
#endif
}

bool BestEncInfoCache::setFromCs( const CodingStructure& cs, const Partitioner& partitioner )
{
#if REUSE_CU_RESULTS_WITH_MULTIPLE_TUS
  if( cs.cus.size() != 1 || cs.pus.size() != 1 )
#else
  if( cs.cus.size() != 1 || cs.tus.size() != 1 || cs.pus.size() != 1 )
#endif
  {
    return false;
  }

  unsigned idx1, idx2, idx3, idx4;
  getAreaIdx( cs.area.Y(), *m_slice_bencinf->getPPS()->pcv, idx1, idx2, idx3, idx4 );

  BestEncodingInfo& encInfo = *m_bestEncInfo[idx1][idx2][idx3][idx4];

  encInfo.poc            =  cs.picture->poc;
  encInfo.cu.repositionTo( *cs.cus.front() );
  encInfo.pu.repositionTo( *cs.pus.front() );
#if !REUSE_CU_RESULTS_WITH_MULTIPLE_TUS
  encInfo.tu.repositionTo( *cs.tus.front() );
#endif
  encInfo.cu             = *cs.cus.front();
  encInfo.pu             = *cs.pus.front();
#if REUSE_CU_RESULTS_WITH_MULTIPLE_TUS
  int tuIdx = 0;
  for( auto tu : cs.tus )
  {
    encInfo.tus[tuIdx].repositionTo( *tu );
    encInfo.tus[tuIdx].resizeTo( *tu );
    for( auto &blk : tu->blocks )
    {
      if( blk.valid() )
        encInfo.tus[tuIdx].copyComponentFrom( *tu, blk.compID );
    }
    tuIdx++;
  }
  CHECKD( cs.tus.size() > MAX_NUM_TUS, "Exceeding tus array boundaries" );
  encInfo.numTus = cs.tus.size();
#else
  for( auto &blk : cs.tus.front()->blocks )
  {
    if( blk.valid() ) encInfo.tu.copyComponentFrom( *cs.tus.front(), blk.compID );
  }
#endif
  encInfo.testMode       = getCSEncMode( cs );

  return true;
}

bool BestEncInfoCache::isValid( const CodingStructure& cs, const Partitioner& partitioner, int qp )
{
#if JVET_O0050_LOCAL_DUAL_TREE
  if( partitioner.treeType == TREE_C )
  {
    return false; //if save & load is allowed for chroma CUs, we should check whether luma info (pred, recon, etc) is the same, which is quite complex
  }
#endif
  unsigned idx1, idx2, idx3, idx4;
  getAreaIdx( cs.area.Y(), *m_slice_bencinf->getPPS()->pcv, idx1, idx2, idx3, idx4 );

  BestEncodingInfo& encInfo = *m_bestEncInfo[idx1][idx2][idx3][idx4];

#if JVET_O0050_LOCAL_DUAL_TREE
  if( encInfo.cu.treeType != partitioner.treeType || encInfo.cu.modeType != partitioner.modeType )
  {
    return false;
  }
#endif
  if( encInfo.cu.qp != qp )
    return false;
  if( cs.picture->poc != encInfo.poc || CS::getArea( cs, cs.area, partitioner.chType ) != CS::getArea( cs, encInfo.cu, partitioner.chType ) || !isTheSameNbHood( encInfo.cu, cs, partitioner
    , encInfo.pu, (cs.picture->Y().width), (cs.picture->Y().height)
)
    || CU::isIBC(encInfo.cu)
    || partitioner.currQgEnable() || cs.currQP[partitioner.chType] != encInfo.cu.qp
    )
  {
    return false;
  }
  else
  {
    return true;
  }
}

bool BestEncInfoCache::setCsFrom( CodingStructure& cs, EncTestMode& testMode, const Partitioner& partitioner ) const
{
  unsigned idx1, idx2, idx3, idx4;
  getAreaIdx( cs.area.Y(), *m_slice_bencinf->getPPS()->pcv, idx1, idx2, idx3, idx4 );

  BestEncodingInfo& encInfo = *m_bestEncInfo[idx1][idx2][idx3][idx4];

  if( cs.picture->poc != encInfo.poc || CS::getArea( cs, cs.area, partitioner.chType ) != CS::getArea( cs, encInfo.cu, partitioner.chType ) || !isTheSameNbHood( encInfo.cu, cs, partitioner
    , encInfo.pu, (cs.picture->Y().width), (cs.picture->Y().height)
    )
    || partitioner.currQgEnable() || cs.currQP[partitioner.chType] != encInfo.cu.qp
    )
  {
    return false;
  }

  CodingUnit     &cu = cs.addCU( CS::getArea( cs, cs.area, partitioner.chType ), partitioner.chType );
  PredictionUnit &pu = cs.addPU( CS::getArea( cs, cs.area, partitioner.chType ), partitioner.chType );
#if !REUSE_CU_RESULTS_WITH_MULTIPLE_TUS
  TransformUnit  &tu = cs.addTU( CS::getArea( cs, cs.area, partitioner.chType ), partitioner.chType );
#endif

  cu          .repositionTo( encInfo.cu );
  pu          .repositionTo( encInfo.pu );
#if !REUSE_CU_RESULTS_WITH_MULTIPLE_TUS
  tu          .repositionTo( encInfo.tu );
#endif

  cu          = encInfo.cu;
  pu          = encInfo.pu;
#if REUSE_CU_RESULTS_WITH_MULTIPLE_TUS
  CHECKD( !( encInfo.numTus > 0 ), "Empty tus array" );
  for( int i = 0; i < encInfo.numTus; i++ )
  {
    TransformUnit  &tu = cs.addTU( encInfo.tus[i], partitioner.chType );

    for( auto &blk : tu.blocks )
    {
      if( blk.valid() ) tu.copyComponentFrom( encInfo.tus[i], blk.compID );
    }
  }
#else
  for( auto &blk : tu.blocks )
  {
    if( blk.valid() ) tu.copyComponentFrom( encInfo.tu, blk.compID );
  }
#endif

  testMode    = encInfo.testMode;

  return true;
}

#if ENABLE_SPLIT_PARALLELISM
void BestEncInfoCache::copyState(const BestEncInfoCache &other, const UnitArea &area)
{
  m_slice_bencinf  = other.m_slice_bencinf;
  m_currTemporalId = other.m_currTemporalId;

  if( m_slice_bencinf->isIntra() ) return;

  const int cuSizeMask = m_slice_bencinf->getSPS()->getMaxCUWidth() - 1;

  const int minPosX = ( area.lx() & cuSizeMask ) >> MIN_CU_LOG2;
  const int minPosY = ( area.ly() & cuSizeMask ) >> MIN_CU_LOG2;
  const int maxPosX = ( area.Y().bottomRight().x & cuSizeMask ) >> MIN_CU_LOG2;
  const int maxPosY = ( area.Y().bottomRight().y & cuSizeMask ) >> MIN_CU_LOG2;

  for( unsigned x = minPosX; x <= maxPosX; x++ )
  {
    for( unsigned y = minPosY; y <= maxPosY; y++ )
    {
      for( int wIdx = 0; wIdx < gp_sizeIdxInfo->numWidths(); wIdx++ )
      {
        const int width = gp_sizeIdxInfo->sizeFrom( wIdx );

        if( m_bestEncInfo[x][y][wIdx] && width <= area.lwidth() && x + ( width >> MIN_CU_LOG2 ) <= ( maxPosX + 1 ) )
        {
          for( int hIdx = 0; hIdx < gp_sizeIdxInfo->numHeights(); hIdx++ )
          {
            const int height = gp_sizeIdxInfo->sizeFrom( hIdx );

            if( gp_sizeIdxInfo->isCuSize( height ) && height <= area.lheight() && y + ( height >> MIN_CU_LOG2 ) <= ( maxPosY + 1 ) )
            {
              if( other.m_bestEncInfo[x][y][wIdx][hIdx]->temporalId > m_bestEncInfo[x][y][wIdx][hIdx]->temporalId )
              {
                m_bestEncInfo[x][y][wIdx][hIdx]->cu       = other.m_bestEncInfo[x][y][wIdx][hIdx]->cu;
                m_bestEncInfo[x][y][wIdx][hIdx]->pu       = other.m_bestEncInfo[x][y][wIdx][hIdx]->pu;
                m_bestEncInfo[x][y][wIdx][hIdx]->numTus   = other.m_bestEncInfo[x][y][wIdx][hIdx]->numTus;
                m_bestEncInfo[x][y][wIdx][hIdx]->poc      = other.m_bestEncInfo[x][y][wIdx][hIdx]->poc;
                m_bestEncInfo[x][y][wIdx][hIdx]->testMode = other.m_bestEncInfo[x][y][wIdx][hIdx]->testMode;

                for( int i = 0; i < m_bestEncInfo[x][y][wIdx][hIdx]->numTus; i++ )
                  m_bestEncInfo[x][y][wIdx][hIdx]->tus[i] = other.m_bestEncInfo[x][y][wIdx][hIdx]->tus[i];
              }
            }
            else if( y + ( height >> MIN_CU_LOG2 ) > maxPosY + 1 )
            {
              break;;
            }
          }
        }
        else if( x + ( width >> MIN_CU_LOG2 ) > maxPosX + 1 )
        {
          break;
        }
      }
    }
  }
}

void BestEncInfoCache::touch(const UnitArea &area)
{
  unsigned idx1, idx2, idx3, idx4;
  getAreaIdx(area.Y(), *m_slice_bencinf->getPPS()->pcv, idx1, idx2, idx3, idx4);
  BestEncodingInfo &encInfo = *m_bestEncInfo[idx1][idx2][idx3][idx4];

  encInfo.temporalId = m_currTemporalId;
}

#endif

#endif

static bool interHadActive( const ComprCUCtx& ctx )
{
  return ctx.interHad != 0;
}

//////////////////////////////////////////////////////////////////////////
// EncModeCtrlQTBT
//////////////////////////////////////////////////////////////////////////

void EncModeCtrlMTnoRQT::create( const EncCfg& cfg )
{
  CacheBlkInfoCtrl::create();
#if REUSE_CU_RESULTS
  BestEncInfoCache::create( cfg.getChromaFormatIdc() );
#endif
  SaveLoadEncInfoSbt::create();
}

void EncModeCtrlMTnoRQT::destroy()
{
  CacheBlkInfoCtrl::destroy();
#if REUSE_CU_RESULTS
  BestEncInfoCache::destroy();
#endif
  SaveLoadEncInfoSbt::destroy();
}

void EncModeCtrlMTnoRQT::initCTUEncoding( const Slice &slice )
{
  CacheBlkInfoCtrl::init( slice );
#if REUSE_CU_RESULTS
  BestEncInfoCache::init( slice );
#endif
  SaveLoadEncInfoSbt::init( slice );

  CHECK( !m_ComprCUCtxList.empty(), "Mode list is not empty at the beginning of a CTU" );

  m_slice             = &slice;
#if ENABLE_SPLIT_PARALLELISM
  m_runNextInParallel      = false;
#endif

  if( m_pcEncCfg->getUseE0023FastEnc() )
  {
    if (m_pcEncCfg->getUseCompositeRef())
      m_skipThreshold = ( ( slice.getMinPictureDistance() <= PICTURE_DISTANCE_TH * 2 ) ? FAST_SKIP_DEPTH : SKIP_DEPTH );
    else
      m_skipThreshold = ((slice.getMinPictureDistance() <= PICTURE_DISTANCE_TH) ? FAST_SKIP_DEPTH : SKIP_DEPTH);

  }
  else
  {
    m_skipThreshold = SKIP_DEPTH;
  }
}

void EncModeCtrlMTnoRQT::initCULevel( Partitioner &partitioner, const CodingStructure& cs )
{
  // Min/max depth
  unsigned minDepth = 0;
  unsigned maxDepth = g_aucLog2[cs.sps->getCTUSize()] - g_aucLog2[cs.sps->getMinQTSize( m_slice->getSliceType(), partitioner.chType )];
  if( m_pcEncCfg->getUseFastLCTU() )
  {
    if( auto adPartitioner = dynamic_cast<AdaptiveDepthPartitioner*>( &partitioner ) )
    {
      // LARGE CTU
      adPartitioner->setMaxMinDepth( minDepth, maxDepth, cs );
    }
  }

  m_ComprCUCtxList.push_back( ComprCUCtx( cs, minDepth, maxDepth, NUM_EXTRA_FEATURES ) );

#if ENABLE_SPLIT_PARALLELISM
  if( m_runNextInParallel )
  {
    for( auto &level : m_ComprCUCtxList )
    {
      CHECK( level.isLevelSplitParallel, "Tring to parallelize a level within parallel execution!" );
    }
    CHECK( cs.picture->scheduler.getSplitJobId() == 0, "Trying to run a parallel level although jobId is 0!" );
    m_runNextInParallel                          = false;
    m_ComprCUCtxList.back().isLevelSplitParallel = true;
  }

#endif
  const CodingUnit* cuLeft  = cs.getCU( cs.area.blocks[partitioner.chType].pos().offset( -1, 0 ), partitioner.chType );
  const CodingUnit* cuAbove = cs.getCU( cs.area.blocks[partitioner.chType].pos().offset( 0, -1 ), partitioner.chType );

  const bool qtBeforeBt = ( (  cuLeft  &&  cuAbove  && cuLeft ->qtDepth > partitioner.currQtDepth && cuAbove->qtDepth > partitioner.currQtDepth )
                         || (  cuLeft  && !cuAbove  && cuLeft ->qtDepth > partitioner.currQtDepth )
                         || ( !cuLeft  &&  cuAbove  && cuAbove->qtDepth > partitioner.currQtDepth )
                         || ( !cuAbove && !cuLeft   && cs.area.lwidth() >= ( 32 << cs.slice->getDepth() ) ) )
                         && ( cs.area.lwidth() > ( cs.pcv->getMinQtSize( *cs.slice, partitioner.chType ) << 1 ) );

  // set features
  ComprCUCtx &cuECtx  = m_ComprCUCtxList.back();
  cuECtx.set( BEST_NON_SPLIT_COST,  MAX_DOUBLE );
  cuECtx.set( BEST_VERT_SPLIT_COST, MAX_DOUBLE );
  cuECtx.set( BEST_HORZ_SPLIT_COST, MAX_DOUBLE );
  cuECtx.set( BEST_TRIH_SPLIT_COST, MAX_DOUBLE );
  cuECtx.set( BEST_TRIV_SPLIT_COST, MAX_DOUBLE );
  cuECtx.set( DO_TRIH_SPLIT,        1 );
  cuECtx.set( DO_TRIV_SPLIT,        1 );
  cuECtx.set( BEST_IMV_COST,        MAX_DOUBLE * .5 );
  cuECtx.set( BEST_NO_IMV_COST,     MAX_DOUBLE * .5 );
  cuECtx.set( QT_BEFORE_BT,         qtBeforeBt );
  cuECtx.set( DID_QUAD_SPLIT,       false );
  cuECtx.set( IS_BEST_NOSPLIT_SKIP, false );
  cuECtx.set( MAX_QT_SUB_DEPTH,     0 );

  // QP
  int baseQP = cs.baseQP;
#if JVET_O0050_LOCAL_DUAL_TREE
  if (!partitioner.isSepTree(cs) || isLuma(partitioner.chType))
#else
  if (!CS::isDualITree (cs) || isLuma (partitioner.chType))
#endif
  {
    if (m_pcEncCfg->getUseAdaptiveQP())
    {
      baseQP = Clip3(-cs.sps->getQpBDOffset(CHANNEL_TYPE_LUMA), MAX_QP, baseQP + xComputeDQP(cs, partitioner));
    }
#if ENABLE_QPA_SUB_CTU
    else if (m_pcEncCfg->getUsePerceptQPA() && !m_pcEncCfg->getUseRateCtrl() && cs.pps->getUseDQP() && cs.pps->getCuQpDeltaSubdiv() > 0)
    {
      const PreCalcValues &pcv = *cs.pcv;

      if ((partitioner.currArea().lwidth() < pcv.maxCUWidth) && (partitioner.currArea().lheight() < pcv.maxCUHeight) && cs.picture)
      {
        const Position    &pos = partitioner.currQgPos;
#if MAX_TB_SIZE_SIGNALLING
        const unsigned mtsLog2 = (unsigned)g_aucLog2[std::min (cs.sps->getMaxTbSize(), pcv.maxCUWidth)];
#else
        const unsigned mtsLog2 = (unsigned)g_aucLog2[std::min<uint32_t> (MAX_TB_SIZEY, pcv.maxCUWidth)];
#endif
        const unsigned  stride = pcv.maxCUWidth >> mtsLog2;

        baseQP = cs.picture->m_subCtuQP[((pos.x & pcv.maxCUWidthMask) >> mtsLog2) + stride * ((pos.y & pcv.maxCUHeightMask) >> mtsLog2)];
      }
    }
#endif
#if SHARP_LUMA_DELTA_QP
    if (m_pcEncCfg->getLumaLevelToDeltaQPMapping().isEnabled())
    {
      if (partitioner.currQgEnable())
      {
        m_lumaQPOffset = calculateLumaDQP (cs.getOrgBuf (clipArea (cs.area.Y(), cs.picture->Y())));
      }
      baseQP = Clip3 (-cs.sps->getQpBDOffset (CHANNEL_TYPE_LUMA), MAX_QP, baseQP - m_lumaQPOffset);
    }
#endif
  }
  int minQP = baseQP;
  int maxQP = baseQP;

  xGetMinMaxQP( minQP, maxQP, cs, partitioner, baseQP, *cs.sps, *cs.pps, CU_QUAD_SPLIT );
  bool checkIbc = true;
  if (partitioner.chType == CHANNEL_TYPE_CHROMA)
  {
#if JVET_O0258_REMOVE_CHROMA_IBC_FOR_DUALTREE
    checkIbc = false;
#else
    IbcLumaCoverage ibcLumaCoverage = cs.getIbcLumaCoverage(cs.area.Cb());
    switch (ibcLumaCoverage)
    {
    case IBC_LUMA_COVERAGE_FULL:
      // check IBC
      break;
    case IBC_LUMA_COVERAGE_PARTIAL:
      // do not check IBC
      checkIbc = false;
      break;
    case IBC_LUMA_COVERAGE_NONE:
      // do not check IBC
      checkIbc = false;
      break;
    default:
      THROW("Unknown IBC luma coverage type");
    }
#endif
  }
  // Add coding modes here
  // NOTE: Working back to front, as a stack, which is more efficient with the container
  // NOTE: First added modes will be processed at the end.

  //////////////////////////////////////////////////////////////////////////
  // Add unit split modes

  if( !cuECtx.get<bool>( QT_BEFORE_BT ) )
  {
    for( int qp = maxQP; qp >= minQP; qp-- )
    {
      m_ComprCUCtxList.back().testModes.push_back( { ETM_SPLIT_QT, ETO_STANDARD, qp, false } );
    }
  }

  if( partitioner.canSplit( CU_TRIV_SPLIT, cs ) )
  {
    // add split modes
    for( int qp = maxQP; qp >= minQP; qp-- )
    {
      m_ComprCUCtxList.back().testModes.push_back( { ETM_SPLIT_TT_V, ETO_STANDARD, qp, false } );
    }
  }

  if( partitioner.canSplit( CU_TRIH_SPLIT, cs ) )
  {
    // add split modes
    for( int qp = maxQP; qp >= minQP; qp-- )
    {
      m_ComprCUCtxList.back().testModes.push_back( { ETM_SPLIT_TT_H, ETO_STANDARD, qp, false } );
    }
  }

  int minQPq = minQP;
  int maxQPq = maxQP;
  xGetMinMaxQP( minQP, maxQP, cs, partitioner, baseQP, *cs.sps, *cs.pps, CU_BT_SPLIT );
  if( partitioner.canSplit( CU_VERT_SPLIT, cs ) )
  {
    // add split modes
    for( int qp = maxQP; qp >= minQP; qp-- )
    {
      m_ComprCUCtxList.back().testModes.push_back( { ETM_SPLIT_BT_V, ETO_STANDARD, qp, false } );
    }
    m_ComprCUCtxList.back().set( DID_VERT_SPLIT, true );
  }
  else
  {
    m_ComprCUCtxList.back().set( DID_VERT_SPLIT, false );
  }

  if( partitioner.canSplit( CU_HORZ_SPLIT, cs ) )
  {
    // add split modes
    for( int qp = maxQP; qp >= minQP; qp-- )
    {
      m_ComprCUCtxList.back().testModes.push_back( { ETM_SPLIT_BT_H, ETO_STANDARD, qp, false } );
    }
    m_ComprCUCtxList.back().set( DID_HORZ_SPLIT, true );
  }
  else
  {
    m_ComprCUCtxList.back().set( DID_HORZ_SPLIT, false );
  }

  if( cuECtx.get<bool>( QT_BEFORE_BT ) )
  {
    for( int qp = maxQPq; qp >= minQPq; qp-- )
    {
      m_ComprCUCtxList.back().testModes.push_back( { ETM_SPLIT_QT, ETO_STANDARD, qp, false } );
    }
  }

  m_ComprCUCtxList.back().testModes.push_back( { ETM_POST_DONT_SPLIT } );

  xGetMinMaxQP( minQP, maxQP, cs, partitioner, baseQP, *cs.sps, *cs.pps, CU_DONT_SPLIT );

  bool useLossless = false;
  int  lowestQP = minQP;
  if( cs.pps->getTransquantBypassEnabledFlag() )
  {
    useLossless = true; // mark that the first iteration is to cost TQB mode.
    minQP = minQP - 1;  // increase loop variable range by 1, to allow testing of TQB mode along with other QPs

    if( m_pcEncCfg->getCUTransquantBypassFlagForceValue() )
    {
      maxQP = minQP;
    }
  }

  //////////////////////////////////////////////////////////////////////////
  // Add unit coding modes: Intra, InterME, InterMerge ...
#if JVET_O0050_LOCAL_DUAL_TREE
  bool tryIntraRdo = true;
  bool tryInterRdo = true;
  bool tryIBCRdo   = true;
  if( partitioner.isConsIntra() )
  {
    tryInterRdo = false;
  }
  else if( partitioner.isConsInter() )
  {
    tryIntraRdo = tryIBCRdo = false;
  }
  checkIbc &= tryIBCRdo;
#endif

  for( int qpLoop = maxQP; qpLoop >= minQP; qpLoop-- )
  {
    const int  qp       = std::max( qpLoop, lowestQP );
    const bool lossless = useLossless && qpLoop == minQP;
#if REUSE_CU_RESULTS
    const bool isReusingCu = isValid( cs, partitioner, qp );
    cuECtx.set( IS_REUSING_CU, isReusingCu );
    if( isReusingCu )
    {
      m_ComprCUCtxList.back().testModes.push_back( {ETM_RECO_CACHED, ETO_STANDARD, qp, lossless} );
    }
#endif
    // add intra modes
#if JVET_O0050_LOCAL_DUAL_TREE
    if( tryIntraRdo )
    {
#endif
    m_ComprCUCtxList.back().testModes.push_back( { ETM_IPCM,  ETO_STANDARD, qp, lossless } );
#if JVET_O0119_BASE_PALETTE_444
    if (cs.slice->getSPS()->getPLTMode() && ( cs.slice->isIRAP() || (cs.area.lwidth() == 4 && cs.area.lheight() == 4) ) && getPltEnc() )
    {
      m_ComprCUCtxList.back().testModes.push_back({ ETM_PALETTE, ETO_STANDARD, qp, lossless });
    }
#endif
    m_ComprCUCtxList.back().testModes.push_back( { ETM_INTRA, ETO_STANDARD, qp, lossless } );
#if JVET_O0119_BASE_PALETTE_444
    if (cs.slice->getSPS()->getPLTMode() && !cs.slice->isIRAP() && !(cs.area.lwidth() == 4 && cs.area.lheight() == 4) && getPltEnc() )
    {
      m_ComprCUCtxList.back().testModes.push_back({ ETM_PALETTE,  ETO_STANDARD, qp, lossless });
    }
#endif
#if JVET_O0050_LOCAL_DUAL_TREE
    }
#endif
    // add ibc mode to intra path
    if (cs.sps->getIBCFlag() && checkIbc)
    {
      m_ComprCUCtxList.back().testModes.push_back({ ETM_IBC,         ETO_STANDARD,  qp, lossless });
      if (partitioner.chType == CHANNEL_TYPE_LUMA)
      {
        m_ComprCUCtxList.back().testModes.push_back({ ETM_IBC_MERGE,   ETO_STANDARD,  qp, lossless });
      }
    }
  }

  // add first pass modes
#if JVET_O0050_LOCAL_DUAL_TREE
  if ( !m_slice->isIRAP() && !( cs.area.lwidth() == 4 && cs.area.lheight() == 4 ) && tryInterRdo )
#else
  if ( !m_slice->isIRAP() && !( cs.area.lwidth() == 4 && cs.area.lheight() == 4 ) )
#endif
  {
    for( int qpLoop = maxQP; qpLoop >= minQP; qpLoop-- )
    {
      const int  qp       = std::max( qpLoop, lowestQP );
      const bool lossless = useLossless && qpLoop == minQP;
#if JVET_O0057_ALTHPELIF
      if (m_pcEncCfg->getIMV())
      {
        m_ComprCUCtxList.back().testModes.push_back({ ETM_INTER_ME,  EncTestModeOpts( 4 << ETO_IMV_SHIFT ), qp, lossless });
      }
#endif
      if( m_pcEncCfg->getIMV() || m_pcEncCfg->getUseAffineAmvr() )
      {
        int imv = m_pcEncCfg->getIMV4PelFast() ? 3 : 2;
        m_ComprCUCtxList.back().testModes.push_back( { ETM_INTER_ME, EncTestModeOpts( imv << ETO_IMV_SHIFT ), qp, lossless } );
        m_ComprCUCtxList.back().testModes.push_back( { ETM_INTER_ME, EncTestModeOpts( 1 << ETO_IMV_SHIFT ), qp, lossless } );
      }
      // add inter modes
      if( m_pcEncCfg->getUseEarlySkipDetection() )
      {
        if( cs.sps->getUseTriangle() && cs.slice->isInterB() )
        {
          m_ComprCUCtxList.back().testModes.push_back( { ETM_MERGE_TRIANGLE, ETO_STANDARD, qp, lossless } );
        }
        m_ComprCUCtxList.back().testModes.push_back( { ETM_MERGE_SKIP,  ETO_STANDARD, qp, lossless } );
        if ( cs.sps->getUseAffine() || cs.sps->getSBTMVPEnabledFlag() )
        {
          m_ComprCUCtxList.back().testModes.push_back( { ETM_AFFINE,    ETO_STANDARD, qp, lossless } );
        }
        m_ComprCUCtxList.back().testModes.push_back( { ETM_INTER_ME,    ETO_STANDARD, qp, lossless } );
      }
      else
      {
        m_ComprCUCtxList.back().testModes.push_back( { ETM_INTER_ME,    ETO_STANDARD, qp, lossless } );
        if( cs.sps->getUseTriangle() && cs.slice->isInterB() )
        {
          m_ComprCUCtxList.back().testModes.push_back( { ETM_MERGE_TRIANGLE, ETO_STANDARD, qp, lossless } );
        }
        m_ComprCUCtxList.back().testModes.push_back( { ETM_MERGE_SKIP,  ETO_STANDARD, qp, lossless } );
        if ( cs.sps->getUseAffine() || cs.sps->getSBTMVPEnabledFlag() )
        {
          m_ComprCUCtxList.back().testModes.push_back( { ETM_AFFINE,    ETO_STANDARD, qp, lossless } );
        }
      }
      if (m_pcEncCfg->getUseHashME())
      {
        int minSize = min(cs.area.lwidth(), cs.area.lheight());
        if (minSize < 128 && minSize >= 4)
        {
          m_ComprCUCtxList.back().testModes.push_back({ ETM_HASH_INTER, ETO_STANDARD, qp, lossless });
        }
      }
    }
  }

  // ensure to skip unprobable modes
  if( !tryModeMaster( m_ComprCUCtxList.back().testModes.back(), cs, partitioner ) )
  {
    nextMode( cs, partitioner );
  }

  m_ComprCUCtxList.back().lastTestMode = EncTestMode();
}

void EncModeCtrlMTnoRQT::finishCULevel( Partitioner &partitioner )
{
  m_ComprCUCtxList.pop_back();
}


bool EncModeCtrlMTnoRQT::tryMode( const EncTestMode& encTestmode, const CodingStructure &cs, Partitioner& partitioner )
{
  ComprCUCtx& cuECtx = m_ComprCUCtxList.back();

  // Fast checks, partitioning depended
  if (cuECtx.isHashPerfectMatch && encTestmode.type != ETM_MERGE_SKIP && encTestmode.type != ETM_INTER_ME && encTestmode.type != ETM_AFFINE && encTestmode.type != ETM_MERGE_TRIANGLE)
  {
    return false;
  }

  // if early skip detected, skip all modes checking but the splits
  if( cuECtx.earlySkip && m_pcEncCfg->getUseEarlySkipDetection() && !isModeSplit( encTestmode ) && !( isModeInter( encTestmode ) ) )
  {
    return false;
  }

  const PartSplit implicitSplit = partitioner.getImplicitSplit( cs );
  const bool isBoundary         = implicitSplit != CU_DONT_SPLIT;

  if( isBoundary && encTestmode.type != ETM_SPLIT_QT )
  {
    return getPartSplit( encTestmode ) == implicitSplit;
  }
  else if( isBoundary && encTestmode.type == ETM_SPLIT_QT )
  {
    return partitioner.canSplit( CU_QUAD_SPLIT, cs );
  }

#if REUSE_CU_RESULTS
  if( cuECtx.get<bool>( IS_REUSING_CU ) )
  {
    if( encTestmode.type == ETM_RECO_CACHED )
    {
      return true;
    }

    if( isModeNoSplit( encTestmode ) )
    {
      return false;
    }
  }

#endif
  const Slice&           slice       = *m_slice;
  const SPS&             sps         = *slice.getSPS();
  const uint32_t             numComp     = getNumberValidComponents( slice.getSPS()->getChromaFormatIdc() );
  const uint32_t             width       = partitioner.currArea().lumaSize().width;
#if FIX_PCM
  const uint32_t             height       = partitioner.currArea().lumaSize().height;
#endif
  const CodingStructure *bestCS      = cuECtx.bestCS;
  const CodingUnit      *bestCU      = cuECtx.bestCU;
  const EncTestMode      bestMode    = bestCS ? getCSEncMode( *bestCS ) : EncTestMode();

  CodedCUInfo    &relatedCU          = getBlkInfo( partitioner.currArea() );

  if( cuECtx.minDepth > partitioner.currQtDepth && partitioner.canSplit( CU_QUAD_SPLIT, cs ) )
  {
    // enforce QT
    return encTestmode.type == ETM_SPLIT_QT;
  }
  else if( encTestmode.type == ETM_SPLIT_QT && cuECtx.maxDepth <= partitioner.currQtDepth )
  {
    // don't check this QT depth
    return false;
  }

  if( bestCS && bestCS->cus.size() == 1 )
  {
    // update the best non-split cost
    cuECtx.set( BEST_NON_SPLIT_COST, bestCS->cost );
  }

  if( encTestmode.type == ETM_INTRA )
  {
    if( getFastDeltaQp() )
    {
      if( cs.area.lumaSize().width > cs.pcv->fastDeltaQPCuMaxSize )
      {
        return false; // only check necessary 2Nx2N Intra in fast delta-QP mode
      }
    }

    if( m_pcEncCfg->getUseFastLCTU() && partitioner.currArea().lumaSize().area() > 4096 )
    {
      return false;
    }

    if (CS::isDualITree(cs) && (partitioner.currArea().lumaSize().width > 64 || partitioner.currArea().lumaSize().height > 64))
    {
      return false;
    }

    if (m_pcEncCfg->getUsePbIntraFast() && (!cs.slice->isIntra() || cs.slice->getSPS()->getIBCFlag()) && !interHadActive(cuECtx) && cuECtx.bestCU && !CU::isIntra(*cuECtx.bestCU))
    {
      return false;
    }

    // INTRA MODES
    if (cs.sps->getIBCFlag() && !cuECtx.bestTU)
      return true;
#if JVET_O0050_LOCAL_DUAL_TREE
    if( partitioner.isConsIntra() && !cuECtx.bestTU )
    {
      return true;
    }
#endif
    if ( partitioner.currArea().lumaSize().width == 4 && partitioner.currArea().lumaSize().height == 4 && !slice.isIntra() && !cuECtx.bestTU )
    {
      return true;
    }
    if( !( slice.isIRAP() || bestMode.type == ETM_INTRA || !cuECtx.bestTU ||
      ((!m_pcEncCfg->getDisableIntraPUsInInterSlices()) && (!relatedCU.isInter || !relatedCU.isIBC) && (
                                         ( cuECtx.bestTU->cbf[0] != 0 ) ||
           ( ( numComp > COMPONENT_Cb ) && cuECtx.bestTU->cbf[1] != 0 ) ||
           ( ( numComp > COMPONENT_Cr ) && cuECtx.bestTU->cbf[2] != 0 )  // avoid very complex intra if it is unlikely
         ) ) ) )
    {
      return false;
    }
    if ((m_pcEncCfg->getIBCFastMethod() & IBC_FAST_METHOD_NOINTRA_IBCCBF0)
      && (bestMode.type == ETM_IBC || bestMode.type == ETM_IBC_MERGE)
      && (!cuECtx.bestCU->Y().valid() || cuECtx.bestTU->cbf[0] == 0)
      && (!cuECtx.bestCU->Cb().valid() || cuECtx.bestTU->cbf[1] == 0)
      && (!cuECtx.bestCU->Cr().valid() || cuECtx.bestTU->cbf[2] == 0))
    {
      return false;
    }
    if( lastTestMode().type != ETM_INTRA && cuECtx.bestCS && cuECtx.bestCU && interHadActive( cuECtx ) )
    {
      // Get SATD threshold from best Inter-CU
      if (!cs.slice->isIRAP() && m_pcEncCfg->getUsePbIntraFast() && !cs.slice->getDisableSATDForRD())
      {
        CodingUnit* bestCU = cuECtx.bestCU;
        if (bestCU && !CU::isIntra(*bestCU))
        {
          DistParam distParam;
          const bool useHad = !bestCU->transQuantBypass;
          m_pcRdCost->setDistParam( distParam, cs.getOrgBuf( COMPONENT_Y ), cuECtx.bestCS->getPredBuf( COMPONENT_Y ), cs.sps->getBitDepth( CHANNEL_TYPE_LUMA ), COMPONENT_Y, useHad );
          cuECtx.interHad = distParam.distFunc( distParam );
        }
      }
    }
#if JVET_O0119_BASE_PALETTE_444
    if (bestMode.type == ETM_PALETTE && !slice.isIRAP() && !( partitioner.currArea().lumaSize().width == 4 && partitioner.currArea().lumaSize().height == 4) ) // inter slice
    {
      return false;
    }
#endif
    return true;
  }
#if JVET_O0119_BASE_PALETTE_444
  else if (encTestmode.type == ETM_PALETTE)
  {
    if (partitioner.currArea().lumaSize().width > 64 || partitioner.currArea().lumaSize().height > 64)
    {
      return false;
    }
    const Area curr_cu = CS::getArea(cs, cs.area, partitioner.chType).blocks[getFirstComponentOfChannel(partitioner.chType)];
    try
    {
      double stored_cost = slice.m_mapPltCost.at(curr_cu.pos()).at(curr_cu.size());
      if (bestMode.type != ETM_INVALID && stored_cost > cuECtx.bestCS->cost)
      {
        return false;
      }
    }
    catch (const std::out_of_range &)
    {
      // do nothing if no stored cost value was found.
    }
    return true;
  }
#endif
  else if( encTestmode.type == ETM_IPCM )
  {
    if( getFastDeltaQp() )
    {
      const SPS &sps = *cs.sps;
      const uint32_t fastDeltaQPCuMaxPCMSize = Clip3( ( uint32_t ) 1 << sps.getPCMLog2MinSize(), ( uint32_t ) 1 << sps.getPCMLog2MaxSize(), 32u );

      if( cs.area.lumaSize().width > fastDeltaQPCuMaxPCMSize )
      {
        return false;   // only check necessary PCM in fast deltaqp mode
      }
    }

    // PCM MODES
#if FIX_PCM
    return sps.getPCMEnabledFlag() && width <= ( 1 << sps.getPCMLog2MaxSize() ) && width >= ( 1 << sps.getPCMLog2MinSize() )
            && height <= ( 1 << sps.getPCMLog2MaxSize() ) && height >= ( 1 << sps.getPCMLog2MinSize() );
#else
    return sps.getPCMEnabledFlag() && width <= ( 1 << sps.getPCMLog2MaxSize() ) && width >= ( 1 << sps.getPCMLog2MinSize() );
#endif
  }
  else if (encTestmode.type == ETM_IBC || encTestmode.type == ETM_IBC_MERGE)
  {
    // IBC MODES
#if JVET_O1161_IBC_MAX_SIZE
    return sps.getIBCFlag() && (partitioner.currArea().lumaSize().width < 128 && partitioner.currArea().lumaSize().height < 128);
#else
    return sps.getIBCFlag() && (partitioner.currArea().lumaSize().width < 128 || partitioner.currArea().lumaSize().height < 128);
#endif
  }
  else if( isModeInter( encTestmode ) )
  {
    // INTER MODES (ME + MERGE/SKIP)
    CHECK( slice.isIntra(), "Inter-mode should not be in the I-Slice mode list!" );

    if( getFastDeltaQp() )
    {
      if( encTestmode.type == ETM_MERGE_SKIP )
      {
        return false;
      }
      if( cs.area.lumaSize().width > cs.pcv->fastDeltaQPCuMaxSize )
      {
        return false; // only check necessary 2Nx2N Inter in fast deltaqp mode
      }
    }

    // --- Check if we can quit current mode using SAVE/LOAD coding history

    if( encTestmode.type == ETM_INTER_ME )
    {
      if( encTestmode.opts == ETO_STANDARD )
      {
        // NOTE: ETO_STANDARD is always done when early SKIP mode detection is enabled
        if( !m_pcEncCfg->getUseEarlySkipDetection() )
        {
          if( relatedCU.isSkip || relatedCU.isIntra )
          {
            return false;
          }
        }
      }
      else if ((encTestmode.opts & ETO_IMV) != 0)
      {
        int imvOpt = (encTestmode.opts & ETO_IMV) >> ETO_IMV_SHIFT;

        if (imvOpt == 3 && cuECtx.get<double>(BEST_NO_IMV_COST) * 1.06 < cuECtx.get<double>(BEST_IMV_COST))
        {
          if ( !m_pcEncCfg->getUseAffineAmvr() )
          return false;
        }
      }
    }

    if ( encTestmode.type == ETM_AFFINE && relatedCU.isIntra )
    {
      return false;
    }
    if( encTestmode.type == ETM_MERGE_TRIANGLE && ( partitioner.currArea().lumaSize().area() < TRIANGLE_MIN_SIZE || relatedCU.isIntra ) )
    {
      return false;
    }
    return true;
  }
  else if( isModeSplit( encTestmode ) )
  {
    //////////////////////////////////////////////////////////////////////////
    // skip-history rule - don't split further if at least for three past levels
    //                     in the split tree it was found that skip is the best mode
    //////////////////////////////////////////////////////////////////////////
    int skipScore = 0;

    if ((!slice.isIntra() || slice.getSPS()->getIBCFlag()) && cuECtx.get<bool>(IS_BEST_NOSPLIT_SKIP))
    {
      for( int i = 2; i < m_ComprCUCtxList.size(); i++ )
      {
        if( ( m_ComprCUCtxList.end() - i )->get<bool>( IS_BEST_NOSPLIT_SKIP ) )
        {
          skipScore += 1;
        }
        else
        {
          break;
        }
      }
    }

    const PartSplit split = getPartSplit( encTestmode );
    if( !partitioner.canSplit( split, cs ) || skipScore >= 2 )
    {
      if( split == CU_HORZ_SPLIT ) cuECtx.set( DID_HORZ_SPLIT, false );
      if( split == CU_VERT_SPLIT ) cuECtx.set( DID_VERT_SPLIT, false );
      if( split == CU_QUAD_SPLIT ) cuECtx.set( DID_QUAD_SPLIT, false );

      return false;
    }

    if( m_pcEncCfg->getUseContentBasedFastQtbt() )
    {
      const CompArea& currArea = partitioner.currArea().Y();
      int cuHeight  = currArea.height;
      int cuWidth   = currArea.width;

      const bool condIntraInter = m_pcEncCfg->getIntraPeriod() == 1 ? ( partitioner.currBtDepth == 0 ) : ( cuHeight > 32 && cuWidth > 32 );

      if( cuWidth == cuHeight && condIntraInter && getPartSplit( encTestmode ) != CU_QUAD_SPLIT )
      {
        const CPelBuf bufCurrArea = cs.getOrgBuf( partitioner.currArea().block( COMPONENT_Y ) );

        double horVal = 0;
        double verVal = 0;
        double dupVal = 0;
        double dowVal = 0;

        const double th = m_pcEncCfg->getIntraPeriod() == 1 ? 1.2 : 1.0;

        unsigned j, k;

        for( j = 0; j < cuWidth - 1; j++ )
        {
          for( k = 0; k < cuHeight - 1; k++ )
          {
            horVal += abs( bufCurrArea.at( j + 1, k     ) - bufCurrArea.at( j, k ) );
            verVal += abs( bufCurrArea.at( j    , k + 1 ) - bufCurrArea.at( j, k ) );
            dowVal += abs( bufCurrArea.at( j + 1, k )     - bufCurrArea.at( j, k + 1 ) );
            dupVal += abs( bufCurrArea.at( j + 1, k + 1 ) - bufCurrArea.at( j, k ) );
          }
        }
        if( horVal > th * verVal && sqrt( 2 ) * horVal > th * dowVal && sqrt( 2 ) * horVal > th * dupVal && ( getPartSplit( encTestmode ) == CU_HORZ_SPLIT || getPartSplit( encTestmode ) == CU_TRIH_SPLIT ) )
        {
          return false;
        }
        if( th * dupVal < sqrt( 2 ) * verVal && th * dowVal < sqrt( 2 ) * verVal && th * horVal < verVal && ( getPartSplit( encTestmode ) == CU_VERT_SPLIT || getPartSplit( encTestmode ) == CU_TRIV_SPLIT ) )
        {
          return false;
        }
      }

      if( m_pcEncCfg->getIntraPeriod() == 1 && cuWidth <= 32 && cuHeight <= 32 && bestCS && bestCS->tus.size() == 1 && bestCU && bestCU->depth == partitioner.currDepth && partitioner.currBtDepth > 1 && isLuma( partitioner.chType ) )
      {
        if( !bestCU->rootCbf )
        {
          return false;
        }
      }
    }

    if( bestCU && bestCU->skip && bestCU->mtDepth >= m_skipThreshold && !isModeSplit( cuECtx.lastTestMode ) )
    {
      return false;
    }

    int featureToSet = -1;

    switch( getPartSplit( encTestmode ) )
    {
      case CU_QUAD_SPLIT:
        {
#if ENABLE_SPLIT_PARALLELISM
          if( !cuECtx.isLevelSplitParallel )
#endif
          if( !cuECtx.get<bool>( QT_BEFORE_BT ) && bestCU )
          {
            unsigned maxBTD        = cs.pcv->getMaxBtDepth( slice, partitioner.chType );
            const CodingUnit *cuBR = bestCS->cus.back();
            unsigned height        = partitioner.currArea().lumaSize().height;

            if (bestCU && ((bestCU->btDepth == 0 && maxBTD >= ((slice.isIntra() && !slice.getSPS()->getIBCFlag()) ? 3 : 2))
              || (bestCU->btDepth == 1 && cuBR && cuBR->btDepth == 1 && maxBTD >= ((slice.isIntra() && !slice.getSPS()->getIBCFlag()) ? 4 : 3)))
              && (width <= MAX_TB_SIZEY && height <= MAX_TB_SIZEY)
              && cuECtx.get<bool>(DID_HORZ_SPLIT) && cuECtx.get<bool>(DID_VERT_SPLIT))
            {
              return false;
            }
          }
          if( m_pcEncCfg->getUseEarlyCU() && bestCS->cost != MAX_DOUBLE && bestCU && bestCU->skip )
          {
            return false;
          }
          if( getFastDeltaQp() && width <= slice.getPPS()->pcv->fastDeltaQPCuMaxSize )
          {
            return false;
          }
        }
        break;
      case CU_HORZ_SPLIT:
        featureToSet = DID_HORZ_SPLIT;
        break;
      case CU_VERT_SPLIT:
        featureToSet = DID_VERT_SPLIT;
        break;
      case CU_TRIH_SPLIT:
        if( cuECtx.get<bool>( DID_HORZ_SPLIT ) && bestCU && bestCU->btDepth == partitioner.currBtDepth && !bestCU->rootCbf )
        {
          return false;
        }

        if( !cuECtx.get<bool>( DO_TRIH_SPLIT ) )
        {
          return false;
        }
        break;
      case CU_TRIV_SPLIT:
        if( cuECtx.get<bool>( DID_VERT_SPLIT ) && bestCU && bestCU->btDepth == partitioner.currBtDepth && !bestCU->rootCbf )
        {
          return false;
        }

        if( !cuECtx.get<bool>( DO_TRIV_SPLIT ) )
        {
          return false;
        }
        break;
      default:
        THROW( "Only CU split modes are governed by the EncModeCtrl" );
        return false;
        break;
    }

    switch( split )
    {
      case CU_HORZ_SPLIT:
      case CU_TRIH_SPLIT:
        if( cuECtx.get<bool>( QT_BEFORE_BT ) && cuECtx.get<bool>( DID_QUAD_SPLIT ) )
        {
          if( cuECtx.get<int>( MAX_QT_SUB_DEPTH ) > partitioner.currQtDepth + 1 )
          {
            if( featureToSet >= 0 ) cuECtx.set( featureToSet, false );
            return false;
          }
        }
        break;
      case CU_VERT_SPLIT:
      case CU_TRIV_SPLIT:
        if( cuECtx.get<bool>( QT_BEFORE_BT ) && cuECtx.get<bool>( DID_QUAD_SPLIT ) )
        {
          if( cuECtx.get<int>( MAX_QT_SUB_DEPTH ) > partitioner.currQtDepth + 1 )
          {
            if( featureToSet >= 0 ) cuECtx.set( featureToSet, false );
            return false;
          }
        }
        break;
      default:
        break;
    }

    if( split == CU_QUAD_SPLIT ) cuECtx.set( DID_QUAD_SPLIT, true );
    return true;
  }
  else
  {
    CHECK( encTestmode.type != ETM_POST_DONT_SPLIT, "Unknown mode" );

#if JVET_O0592_ENC_ME_IMP
    if ((cuECtx.get<double>(BEST_NO_IMV_COST) == (MAX_DOUBLE * .5) || cuECtx.get<bool>(IS_REUSING_CU)) && !slice.isIntra())
    {
      unsigned idx1, idx2, idx3, idx4;
      getAreaIdx(partitioner.currArea().Y(), *slice.getPPS()->pcv, idx1, idx2, idx3, idx4);
      if (g_isReusedUniMVsFilled[idx1][idx2][idx3][idx4])
      {
        m_pcInterSearch->insertUniMvCands(partitioner.currArea().Y(), g_reusedUniMVs[idx1][idx2][idx3][idx4]);
      }
    }
#endif

    if( !bestCS || ( bestCS && isModeSplit( bestMode ) ) )
    {
      return false;
    }
    else
    {
#if REUSE_CU_RESULTS
      setFromCs( *bestCS, partitioner );

#endif
#if JVET_O0050_LOCAL_DUAL_TREE
      if( partitioner.modeType == MODE_TYPE_INTRA && partitioner.chType == CHANNEL_TYPE_LUMA )
      {
        return false; //not set best coding mode for intra coding pass
      }
#endif
      // assume the non-split modes are done and set the marks for the best found mode
      if( bestCS && bestCU )
      {
        if( CU::isInter( *bestCU ) )
        {
          relatedCU.isInter   = true;
          relatedCU.isSkip   |= bestCU->skip;
          relatedCU.isMMVDSkip |= bestCU->mmvdSkip;
          relatedCU.GBiIdx    = bestCU->GBiIdx;
        }
        else if (CU::isIBC(*bestCU))
        {
          relatedCU.isIBC = true;
          relatedCU.isSkip |= bestCU->skip;
        }
        else if( CU::isIntra( *bestCU ) )
        {
          relatedCU.isIntra   = true;
        }
#if ENABLE_SPLIT_PARALLELISM
#if REUSE_CU_RESULTS
        BestEncInfoCache::touch(partitioner.currArea());
#endif
        CacheBlkInfoCtrl::touch(partitioner.currArea());
#endif
        cuECtx.set( IS_BEST_NOSPLIT_SKIP, bestCU->skip );
      }
    }

    return false;
  }
}

bool EncModeCtrlMTnoRQT::checkSkipOtherLfnst( const EncTestMode& encTestmode, CodingStructure*& tempCS, Partitioner& partitioner )
{
  xExtractFeatures( encTestmode, *tempCS );

  ComprCUCtx& cuECtx  = m_ComprCUCtxList.back();
  bool skipOtherLfnst = false;

  if( encTestmode.type == ETM_INTRA )
  {
    if( !cuECtx.bestCS || ( tempCS->cost >= cuECtx.bestCS->cost && cuECtx.bestCS->cus.size() == 1 && CU::isIntra( *cuECtx.bestCS->cus[ 0 ] ) )
      || ( tempCS->cost <  cuECtx.bestCS->cost && CU::isIntra( *tempCS->cus[ 0 ] ) ) )
    {
      skipOtherLfnst = !tempCS->cus[ 0 ]->rootCbf;
    }
  }

  return skipOtherLfnst;
}

bool EncModeCtrlMTnoRQT::useModeResult( const EncTestMode& encTestmode, CodingStructure*& tempCS, Partitioner& partitioner )
{
  xExtractFeatures( encTestmode, *tempCS );

  ComprCUCtx& cuECtx = m_ComprCUCtxList.back();


  if(      encTestmode.type == ETM_SPLIT_BT_H )
  {
    cuECtx.set( BEST_HORZ_SPLIT_COST, tempCS->cost );
  }
  else if( encTestmode.type == ETM_SPLIT_BT_V )
  {
    cuECtx.set( BEST_VERT_SPLIT_COST, tempCS->cost );
  }
  else if( encTestmode.type == ETM_SPLIT_TT_H )
  {
    cuECtx.set( BEST_TRIH_SPLIT_COST, tempCS->cost );
  }
  else if( encTestmode.type == ETM_SPLIT_TT_V )
  {
    cuECtx.set( BEST_TRIV_SPLIT_COST, tempCS->cost );
  }
  else if( encTestmode.type == ETM_INTRA )
  {
    const CodingUnit cu = *tempCS->getCU( partitioner.chType );

    if( !cu.mtsFlag )
    {
      cuECtx.bestMtsSize2Nx2N1stPass   = tempCS->cost;
    }
    if( !cu.ispMode )
    {
      cuECtx.bestCostMtsFirstPassNoIsp = tempCS->cost;
    }
  }

  if( m_pcEncCfg->getIMV4PelFast() && m_pcEncCfg->getIMV() && encTestmode.type == ETM_INTER_ME )
  {
    int imvMode = ( encTestmode.opts & ETO_IMV ) >> ETO_IMV_SHIFT;

    if( imvMode == 1 )
    {
      if( tempCS->cost < cuECtx.get<double>( BEST_IMV_COST ) )
      {
        cuECtx.set( BEST_IMV_COST, tempCS->cost );
      }
    }
    else if( imvMode == 0 )
    {
      if( tempCS->cost < cuECtx.get<double>( BEST_NO_IMV_COST ) )
      {
        cuECtx.set( BEST_NO_IMV_COST, tempCS->cost );
      }
    }
  }

  if( encTestmode.type == ETM_SPLIT_QT )
  {
    int maxQtD = 0;
    for( const auto& cu : tempCS->cus )
    {
      maxQtD = std::max<int>( maxQtD, cu->qtDepth );
    }
    cuECtx.set( MAX_QT_SUB_DEPTH, maxQtD );
  }

  int maxMtD = tempCS->pcv->getMaxBtDepth( *tempCS->slice, partitioner.chType ) + partitioner.currImplicitBtDepth;

  if( encTestmode.type == ETM_SPLIT_BT_H )
  {
    if( tempCS->cus.size() > 2 )
    {
      int h_2   = tempCS->area.blocks[partitioner.chType].height / 2;
      int cu1_h = tempCS->cus.front()->blocks[partitioner.chType].height;
      int cu2_h = tempCS->cus.back() ->blocks[partitioner.chType].height;

      cuECtx.set( DO_TRIH_SPLIT, cu1_h < h_2 || cu2_h < h_2 || partitioner.currMtDepth + 1 == maxMtD );
    }
  }
  else if( encTestmode.type == ETM_SPLIT_BT_V )
  {
    if( tempCS->cus.size() > 2 )
    {
      int w_2   = tempCS->area.blocks[partitioner.chType].width / 2;
      int cu1_w = tempCS->cus.front()->blocks[partitioner.chType].width;
      int cu2_w = tempCS->cus.back() ->blocks[partitioner.chType].width;

      cuECtx.set( DO_TRIV_SPLIT, cu1_w < w_2 || cu2_w < w_2 || partitioner.currMtDepth + 1 == maxMtD );
    }
  }

  // for now just a simple decision based on RD-cost or choose tempCS if bestCS is not yet coded
  if( tempCS->features[ENC_FT_RD_COST] != MAX_DOUBLE && ( !cuECtx.bestCS || ( ( tempCS->features[ENC_FT_RD_COST] + ( tempCS->useDbCost ? tempCS->costDbOffset : 0 ) ) < ( cuECtx.bestCS->features[ENC_FT_RD_COST] + ( tempCS->useDbCost ? cuECtx.bestCS->costDbOffset : 0 ) ) ) ) )
  {
    cuECtx.bestCS = tempCS;
    cuECtx.bestCU = tempCS->cus[0];
    cuECtx.bestTU = cuECtx.bestCU->firstTU;

    if( isModeInter( encTestmode ) )
    {
      //Here we take the best cost of both inter modes. We are assuming only the inter modes (and all of them) have come before the intra modes!!!
      cuECtx.bestInterCost = cuECtx.bestCS->cost;
    }

    return true;
  }
  else
  {
    return false;
  }
}

#if ENABLE_SPLIT_PARALLELISM
void EncModeCtrlMTnoRQT::copyState( const EncModeCtrl& other, const UnitArea& area )
{
  const EncModeCtrlMTnoRQT* pOther = dynamic_cast<const EncModeCtrlMTnoRQT*>( &other );

  CHECK( !pOther, "Trying to copy state from a different type of controller" );

  this->EncModeCtrl        ::copyState( *pOther, area );
  this->CacheBlkInfoCtrl   ::copyState( *pOther, area );
#if REUSE_CU_RESULTS
  this->BestEncInfoCache   ::copyState( *pOther, area );
#endif
  this->SaveLoadEncInfoSbt ::copyState( *pOther );

  m_skipThreshold = pOther->m_skipThreshold;
}

int EncModeCtrlMTnoRQT::getNumParallelJobs( const CodingStructure &cs, Partitioner& partitioner ) const
{
  int numJobs = 0;

  if(      partitioner.canSplit( CU_TRIH_SPLIT, cs ) )
  {
    numJobs = 6;
  }
  else if( partitioner.canSplit( CU_TRIV_SPLIT, cs ) )
  {
    numJobs = 5;
  }
  else if( partitioner.canSplit( CU_HORZ_SPLIT, cs ) )
  {
    numJobs = 4;
  }
  else if( partitioner.canSplit( CU_VERT_SPLIT, cs ) )
  {
    numJobs = 3;
  }
  else if( partitioner.canSplit( CU_QUAD_SPLIT, cs ) )
  {
    numJobs = 2;
  }
  else if( partitioner.canSplit( CU_DONT_SPLIT, cs ) )
  {
    numJobs = 1;
  }

  CHECK( numJobs >= NUM_RESERVERD_SPLIT_JOBS, "More jobs specified than allowed" );

  return numJobs;
}

bool EncModeCtrlMTnoRQT::isParallelSplit( const CodingStructure &cs, Partitioner& partitioner ) const
{
  if( partitioner.getImplicitSplit( cs ) != CU_DONT_SPLIT || cs.picture->scheduler.getSplitJobId() != 0 ) return false;
  if( cs.pps->getUseDQP() && partitioner.currQgEnable() ) return false;
  const int numJobs = getNumParallelJobs( cs, partitioner );
  const int numPxl  = partitioner.currArea().Y().area();
  const int parlAt  = m_pcEncCfg->getNumSplitThreads() <= 3 ? 1024 : 256;
  if(  cs.slice->isIntra() && numJobs > 2 && ( numPxl == parlAt || !partitioner.canSplit( CU_QUAD_SPLIT, cs ) ) ) return true;
  if( !cs.slice->isIntra() && numJobs > 1 && ( numPxl == parlAt || !partitioner.canSplit( CU_QUAD_SPLIT, cs ) ) ) return true;
  return false;
}

bool EncModeCtrlMTnoRQT::parallelJobSelector( const EncTestMode& encTestmode, const CodingStructure &cs, Partitioner& partitioner ) const
{
  // Job descriptors
  //  - 1: all non-split modes
  //  - 2: QT-split
  //  - 3: all vertical modes but TT_V
  //  - 4: all horizontal modes but TT_H
  //  - 5: TT_V
  //  - 6: TT_H
  switch( cs.picture->scheduler.getSplitJobId() )
  {
  case 1:
    // be sure to execute post dont split
    return !isModeSplit( encTestmode );
    break;
  case 2:
    return encTestmode.type == ETM_SPLIT_QT;
    break;
  case 3:
    return encTestmode.type == ETM_SPLIT_BT_V;
    break;
  case 4:
    return encTestmode.type == ETM_SPLIT_BT_H;
    break;
  case 5:
    return encTestmode.type == ETM_SPLIT_TT_V;
    break;
  case 6:
    return encTestmode.type == ETM_SPLIT_TT_H;
    break;
  default:
    THROW( "Unknown job-ID for parallelization of EncModeCtrlMTnoRQT: " << cs.picture->scheduler.getSplitJobId() );
    break;
  }
}

#endif


