EncGOP.cpp

    vB[RVM_VCEGAM10_M] = 0;
    for( i = RVM_VCEGAM10_M + 1 ; i < N - RVM_VCEGAM10_M + 1 ; i++ )
    {
      vRL[i] = 0;
      for( int j = i - RVM_VCEGAM10_M ; j <= i + RVM_VCEGAM10_M - 1 ; j++ )
      {
        vRL[i] += m_vRVM_RP[j];
      }
      vRL[i] /= ( 2 * RVM_VCEGAM10_M );
      vB[i] = vB[i-1] + m_vRVM_RP[i] - vRL[i];
      dRavg += m_vRVM_RP[i];
      dBavg += vB[i];
    }

    dRavg /= ( N - 2 * RVM_VCEGAM10_M );
    dBavg /= ( N - 2 * RVM_VCEGAM10_M );

    double dSigamB = 0;
    for( i = RVM_VCEGAM10_M + 1 ; i < N - RVM_VCEGAM10_M + 1 ; i++ )
    {
      double tmp = vB[i] - dBavg;
      dSigamB += tmp * tmp;
    }
    dSigamB = sqrt( dSigamB / ( N - 2 * RVM_VCEGAM10_M ) );

    double f = sqrt( 12.0 * ( RVM_VCEGAM10_M - 1 ) / ( RVM_VCEGAM10_M + 1 ) );

    dRVM = dSigamB / dRavg * f;
  }

  return( dRVM );
}

/** Attaches the input bitstream to the stream in the output NAL unit
    Updates rNalu to contain concatenated bitstream. rpcBitstreamRedirect is cleared at the end of this function call.
 *  \param codedSliceData contains the coded slice data (bitstream) to be concatenated to rNalu
 *  \param rNalu          target NAL unit
 */
void EncGOP::xAttachSliceDataToNalUnit (OutputNALUnit& rNalu, OutputBitstream* codedSliceData)
{
  // Byte-align
  rNalu.m_Bitstream.writeByteAlignment();   // Slice header byte-alignment

  // Perform bitstream concatenation
  if (codedSliceData->getNumberOfWrittenBits() > 0)
  {
    rNalu.m_Bitstream.addSubstream(codedSliceData);
  }
  codedSliceData->clear();
}


void EncGOP::arrangeCompositeReference(Slice* pcSlice, PicList& rcListPic, int pocCurr)
{
  Picture* curPic = NULL;
  PicList::iterator  iterPic = rcListPic.begin();
  const PreCalcValues *pcv = pcSlice->getPPS()->pcv;
  m_bgPOC = pocCurr + 1;
  if (m_picBg->getSpliceFull())
  {
    return;
  }
  while (iterPic != rcListPic.end())
  {
    curPic = *(iterPic++);
    if (curPic->getPOC() == pocCurr)
    {
      break;
    }
  }
  if (pcSlice->isIRAP())
  {
    return;
  }

  int width = pcv->lumaWidth;
  int height = pcv->lumaHeight;
  int stride = curPic->getOrigBuf().get(COMPONENT_Y).stride;
  int cStride = curPic->getOrigBuf().get(COMPONENT_Cb).stride;
  Pel* curLumaAddr = curPic->getOrigBuf().get(COMPONENT_Y).buf;
  Pel* curCbAddr = curPic->getOrigBuf().get(COMPONENT_Cb).buf;
  Pel* curCrAddr = curPic->getOrigBuf().get(COMPONENT_Cr).buf;
  Pel* bgOrgLumaAddr = m_picOrig->getOrigBuf().get(COMPONENT_Y).buf;
  Pel* bgOrgCbAddr = m_picOrig->getOrigBuf().get(COMPONENT_Cb).buf;
  Pel* bgOrgCrAddr = m_picOrig->getOrigBuf().get(COMPONENT_Cr).buf;
  int cuMaxWidth = pcv->maxCUWidth;
  int cuMaxHeight = pcv->maxCUHeight;
  int maxReplace = (pcv->sizeInCtus) / 2;
  maxReplace = maxReplace < 1 ? 1 : maxReplace;
  typedef struct tagCostStr
  {
    double cost;
    int ctuIdx;
  }CostStr;
  CostStr* minCtuCost = new CostStr[maxReplace];
  for (int i = 0; i < maxReplace; i++)
  {
    minCtuCost[i].cost = 1e10;
    minCtuCost[i].ctuIdx = -1;
  }
  int bitIncrementY = pcSlice->getSPS()->getBitDepth(CHANNEL_TYPE_LUMA) - 8;
  int bitIncrementUV = pcSlice->getSPS()->getBitDepth(CHANNEL_TYPE_CHROMA) - 8;
  for (int y = 0; y < height; y += cuMaxHeight)
  {
    for (int x = 0; x < width; x += cuMaxWidth)
    {
      double lcuDist = 0.0;
      double lcuDistCb = 0.0;
      double lcuDistCr = 0.0;
      int    realPixelCnt = 0;
      double lcuCost = 1e10;
      int largeDist = 0;

      for (int tmpy = 0; tmpy < cuMaxHeight; tmpy++)
      {
        if (y + tmpy >= height)
        {
          break;
        }
        for (int tmpx = 0; tmpx < cuMaxWidth; tmpx++)
        {
          if (x + tmpx >= width)
          {
            break;
          }

          realPixelCnt++;
          lcuDist += abs(curLumaAddr[(y + tmpy)*stride + x + tmpx] - bgOrgLumaAddr[(y + tmpy)*stride + x + tmpx]);
          if (abs(curLumaAddr[(y + tmpy)*stride + x + tmpx] - bgOrgLumaAddr[(y + tmpy)*stride + x + tmpx]) >(20 << bitIncrementY))
          {
            largeDist++;
          }

          if (tmpy % 2 == 0 && tmpx % 2 == 0)
          {
            lcuDistCb += abs(curCbAddr[(y + tmpy) / 2 * cStride + (x + tmpx) / 2] - bgOrgCbAddr[(y + tmpy) / 2 * cStride + (x + tmpx) / 2]);
            lcuDistCr += abs(curCrAddr[(y + tmpy) / 2 * cStride + (x + tmpx) / 2] - bgOrgCrAddr[(y + tmpy) / 2 * cStride + (x + tmpx) / 2]);
          }
        }
      }

      //Test the vertical or horizontal edge for background patches candidates
      int yInLCU = y / cuMaxHeight;
      int xInLCU = x / cuMaxWidth;
      int iLCUIdx = yInLCU * pcv->widthInCtus + xInLCU;
      if ((largeDist / (double)realPixelCnt < 0.01 &&lcuDist / realPixelCnt < (3.5 * (1 << bitIncrementY)) && lcuDistCb / realPixelCnt < (0.5 * (1 << bitIncrementUV)) && lcuDistCr / realPixelCnt < (0.5 * (1 << bitIncrementUV)) && m_picBg->getSpliceIdx(iLCUIdx) == 0))
      {
        lcuCost = lcuDist / realPixelCnt + lcuDistCb / realPixelCnt + lcuDistCr / realPixelCnt;
        //obtain the maxReplace smallest cost
        //1) find the largest cost in the maxReplace candidates
        for (int i = 0; i < maxReplace - 1; i++)
        {
          if (minCtuCost[i].cost > minCtuCost[i + 1].cost)
          {
            swap(minCtuCost[i].cost, minCtuCost[i + 1].cost);
            swap(minCtuCost[i].ctuIdx, minCtuCost[i + 1].ctuIdx);
          }
        }
        // 2) compare the current cost with the largest cost
        if (lcuCost < minCtuCost[maxReplace - 1].cost)
        {
          minCtuCost[maxReplace - 1].cost = lcuCost;
          minCtuCost[maxReplace - 1].ctuIdx = iLCUIdx;
        }
      }
    }
  }

  // modify QP for background CTU
  {
    for (int i = 0; i < maxReplace; i++)
    {
      if (minCtuCost[i].ctuIdx != -1)
      {
        m_picBg->setSpliceIdx(minCtuCost[i].ctuIdx, pocCurr);
      }
    }
  }
  delete[]minCtuCost;
}

void EncGOP::updateCompositeReference(Slice* pcSlice, PicList& rcListPic, int pocCurr)
{
  Picture* curPic = NULL;
  const PreCalcValues *pcv = pcSlice->getPPS()->pcv;
  PicList::iterator  iterPic = rcListPic.begin();
  iterPic = rcListPic.begin();
  while (iterPic != rcListPic.end())
  {
    curPic = *(iterPic++);
    if (curPic->getPOC() == pocCurr)
    {
      break;
    }
  }
  assert(curPic->getPOC() == pocCurr);

  int width = pcv->lumaWidth;
  int height = pcv->lumaHeight;
  int stride = curPic->getRecoBuf().get(COMPONENT_Y).stride;
  int cStride = curPic->getRecoBuf().get(COMPONENT_Cb).stride;

  Pel* bgLumaAddr = m_picBg->getRecoBuf().get(COMPONENT_Y).buf;
  Pel* bgCbAddr = m_picBg->getRecoBuf().get(COMPONENT_Cb).buf;
  Pel* bgCrAddr = m_picBg->getRecoBuf().get(COMPONENT_Cr).buf;
  Pel* curLumaAddr = curPic->getRecoBuf().get(COMPONENT_Y).buf;
  Pel* curCbAddr = curPic->getRecoBuf().get(COMPONENT_Cb).buf;
  Pel* curCrAddr = curPic->getRecoBuf().get(COMPONENT_Cr).buf;

  int maxCuWidth = pcv->maxCUWidth;
  int maxCuHeight = pcv->maxCUHeight;

  // Update background reference
  if (pcSlice->isIRAP())//(pocCurr == 0)
  {
    curPic->extendPicBorder( pcSlice->getPPS() );
    curPic->setBorderExtension(true);

    m_picBg->getRecoBuf().copyFrom(curPic->getRecoBuf());
    m_picOrig->getOrigBuf().copyFrom(curPic->getOrigBuf());
  }
  else
  {
    //cout << "update B" << pocCurr << endl;
    for (int y = 0; y < height; y += maxCuHeight)
    {
      for (int x = 0; x < width; x += maxCuWidth)
      {
        if (m_picBg->getSpliceIdx((y / maxCuHeight)*pcv->widthInCtus + x / maxCuWidth) == pocCurr)
        {
          for (int tmpy = 0; tmpy < maxCuHeight; tmpy++)
          {
            if (y + tmpy >= height)
            {
              break;
            }
            for (int tmpx = 0; tmpx < maxCuWidth; tmpx++)
            {
              if (x + tmpx >= width)
              {
                break;
              }
              bgLumaAddr[(y + tmpy)*stride + x + tmpx] = curLumaAddr[(y + tmpy)*stride + x + tmpx];
              if (tmpy % 2 == 0 && tmpx % 2 == 0)
              {
                bgCbAddr[(y + tmpy) / 2 * cStride + (x + tmpx) / 2] = curCbAddr[(y + tmpy) / 2 * cStride + (x + tmpx) / 2];
                bgCrAddr[(y + tmpy) / 2 * cStride + (x + tmpx) / 2] = curCrAddr[(y + tmpy) / 2 * cStride + (x + tmpx) / 2];
              }
            }
          }
        }
      }
    }
    m_picBg->setBorderExtension(false);
    m_picBg->extendPicBorder( pcSlice->getPPS() );
    m_picBg->setBorderExtension(true);

    curPic->extendPicBorder( pcSlice->getPPS() );
    curPic->setBorderExtension(true);
    m_picOrig->getOrigBuf().copyFrom(curPic->getOrigBuf());

    m_picBg->setBorderExtension(false);
    m_picBg->extendPicBorder( pcSlice->getPPS() );
    m_picBg->setBorderExtension(true);
  }
}

void EncGOP::applyDeblockingFilterMetric( Picture* pcPic, uint32_t uiNumSlices )
{
  PelBuf cPelBuf = pcPic->getRecoBuf().get( COMPONENT_Y );
  Pel* Rec    = cPelBuf.buf;
  const int  stride = cPelBuf.stride;
  const uint32_t picWidth = cPelBuf.width;
  const uint32_t picHeight = cPelBuf.height;

  Pel* tempRec = Rec;
  const Slice* pcSlice = pcPic->slices[0];
  const uint32_t log2maxTB = pcSlice->getSPS()->getLog2MaxTbSize();
  const uint32_t maxTBsize = (1<<log2maxTB);
  const uint32_t minBlockArtSize = 8;
  const uint32_t noCol = (picWidth>>log2maxTB);
  const uint32_t noRows = (picHeight>>log2maxTB);
  CHECK(!(noCol > 1), "Unspecified error");
  CHECK(!(noRows > 1), "Unspecified error");
  std::vector<uint64_t> colSAD(noCol,  uint64_t(0));
  std::vector<uint64_t> rowSAD(noRows, uint64_t(0));
  uint32_t colIdx = 0;
  uint32_t rowIdx = 0;
  Pel p0, p1, p2, q0, q1, q2;

  int qp = pcSlice->getSliceQp();
  const int bitDepthLuma=pcSlice->getSPS()->getBitDepth(CHANNEL_TYPE_LUMA);
  int bitdepthScale = 1 << (bitDepthLuma-8);
  int beta = LoopFilter::getBeta( qp ) * bitdepthScale;
  const int thr2 = (beta>>2);
  const int thr1 = 2*bitdepthScale;
  uint32_t a = 0;

  if (maxTBsize > minBlockArtSize)
  {
    // Analyze vertical artifact edges
    for(int c = maxTBsize; c < picWidth; c += maxTBsize)
    {
      for(int r = 0; r < picHeight; r++)
      {
        p2 = Rec[c-3];
        p1 = Rec[c-2];
        p0 = Rec[c-1];
        q0 = Rec[c];
        q1 = Rec[c+1];
        q2 = Rec[c+2];
        a = ((abs(p2-(p1<<1)+p0)+abs(q0-(q1<<1)+q2))<<1);
        if ( thr1 < a && a < thr2)
        {
          colSAD[colIdx] += abs(p0 - q0);
        }
        Rec += stride;
      }
      colIdx++;
      Rec = tempRec;
    }

    // Analyze horizontal artifact edges
    for(int r = maxTBsize; r < picHeight; r += maxTBsize)
    {
      for(int c = 0; c < picWidth; c++)
      {
        p2 = Rec[c + (r-3)*stride];
        p1 = Rec[c + (r-2)*stride];
        p0 = Rec[c + (r-1)*stride];
        q0 = Rec[c + r*stride];
        q1 = Rec[c + (r+1)*stride];
        q2 = Rec[c + (r+2)*stride];
        a = ((abs(p2-(p1<<1)+p0)+abs(q0-(q1<<1)+q2))<<1);
        if (thr1 < a && a < thr2)
        {
          rowSAD[rowIdx] += abs(p0 - q0);
        }
      }
      rowIdx++;
    }
  }

  uint64_t colSADsum = 0;
  uint64_t rowSADsum = 0;
  for(int c = 0; c < noCol-1; c++)
  {
    colSADsum += colSAD[c];
  }
  for(int r = 0; r < noRows-1; r++)
  {
    rowSADsum += rowSAD[r];
  }

  colSADsum <<= 10;
  rowSADsum <<= 10;
  colSADsum /= (noCol-1);
  colSADsum /= picHeight;
  rowSADsum /= (noRows-1);
  rowSADsum /= picWidth;

  uint64_t avgSAD = ((colSADsum + rowSADsum)>>1);
  avgSAD >>= (bitDepthLuma-8);

  if ( avgSAD > 2048 )
  {
    avgSAD >>= 9;
    int offset = Clip3(2,6,(int)avgSAD);
    for (int i=0; i<uiNumSlices; i++)
    {
      Slice* pcLocalSlice = pcPic->slices[i];
      pcLocalSlice->setDeblockingFilterOverrideFlag   ( true);
      pcLocalSlice->setDeblockingFilterDisable        ( false);
      pcLocalSlice->setDeblockingFilterBetaOffsetDiv2 ( offset );
      pcLocalSlice->setDeblockingFilterTcOffsetDiv2   ( offset );
      pcLocalSlice->setDeblockingFilterCbBetaOffsetDiv2 ( offset );
      pcLocalSlice->setDeblockingFilterCbTcOffsetDiv2   ( offset );
      pcLocalSlice->setDeblockingFilterCrBetaOffsetDiv2 ( offset );
      pcLocalSlice->setDeblockingFilterCrTcOffsetDiv2   ( offset );
    }
  }
  else
  {
    for (int i=0; i<uiNumSlices; i++)
    {
      Slice* pcLocalSlice = pcPic->slices[i];
      const PPS* pcPPS = pcSlice->getPPS();
      pcLocalSlice->setDeblockingFilterOverrideFlag  ( false);
      pcLocalSlice->setDeblockingFilterDisable       ( pcPPS->getPPSDeblockingFilterDisabledFlag() );
#if DB_PARAM_TID
      int betaIdx = Clip3(0, (int)pcPPS->getDeblockingFilterBetaOffsetDiv2().size() - 1, (int)pcLocalSlice->getTLayer() + (pcLocalSlice->isIntra() ? 0 : 1));
      int tcIdx = Clip3(0, (int)pcPPS->getDeblockingFilterTcOffsetDiv2().size() - 1, (int)pcLocalSlice->getTLayer() + (pcLocalSlice->isIntra() ? 0 : 1));
      pcLocalSlice->setDeblockingFilterBetaOffsetDiv2( pcPPS->getDeblockingFilterBetaOffsetDiv2()[betaIdx] );
      pcLocalSlice->setDeblockingFilterTcOffsetDiv2  ( pcPPS->getDeblockingFilterTcOffsetDiv2()[tcIdx]   );

      pcLocalSlice->setDeblockingFilterCbBetaOffsetDiv2(pcPPS->getDeblockingFilterBetaOffsetDiv2()[betaIdx]);
      pcLocalSlice->setDeblockingFilterCbTcOffsetDiv2(pcPPS->getDeblockingFilterTcOffsetDiv2()[tcIdx]);
      pcLocalSlice->setDeblockingFilterCrBetaOffsetDiv2(pcPPS->getDeblockingFilterBetaOffsetDiv2()[betaIdx]);
      pcLocalSlice->setDeblockingFilterCrTcOffsetDiv2(pcPPS->getDeblockingFilterTcOffsetDiv2()[tcIdx]);
#else
      pcLocalSlice->setDeblockingFilterBetaOffsetDiv2( pcPPS->getDeblockingFilterBetaOffsetDiv2() );
      pcLocalSlice->setDeblockingFilterTcOffsetDiv2  ( pcPPS->getDeblockingFilterTcOffsetDiv2()   );
      pcLocalSlice->setDeblockingFilterCbBetaOffsetDiv2 ( pcPPS->getDeblockingFilterCbBetaOffsetDiv2() );
      pcLocalSlice->setDeblockingFilterCbTcOffsetDiv2   ( pcPPS->getDeblockingFilterCbTcOffsetDiv2() );
      pcLocalSlice->setDeblockingFilterCrBetaOffsetDiv2 ( pcPPS->getDeblockingFilterCrBetaOffsetDiv2() );
      pcLocalSlice->setDeblockingFilterCrTcOffsetDiv2   ( pcPPS->getDeblockingFilterCrTcOffsetDiv2() );
#endif
    }
  }
}

#if DB_PARAM_TID
void EncGOP::applyDeblockingFilterParameterSelection( Picture* pcPic, Slice* pcSlice, const uint32_t numSlices, const int gopID )
{
  const PPS* pcPPS = pcPic->slices[0]->getPPS();
  for (int i = 0; i<numSlices; i++)
  {
    Slice*      pcSlice = pcPic->slices[i];
    pcSlice->setDeblockingFilterOverrideFlag(false);
    pcSlice->setDeblockingFilterDisable(pcPPS->getPPSDeblockingFilterDisabledFlag());
    int betaIdx = Clip3(0, (int)pcPPS->getDeblockingFilterBetaOffsetDiv2().size() - 1, (int)pcSlice->getTLayer() + (pcSlice->isIntra() ? 0 : 1));
    int tcIdx = Clip3(0, (int)pcPPS->getDeblockingFilterTcOffsetDiv2().size() - 1, (int)pcSlice->getTLayer() + (pcSlice->isIntra() ? 0 : 1));
    pcSlice->setDeblockingFilterBetaOffsetDiv2(pcPPS->getDeblockingFilterBetaOffsetDiv2()[betaIdx]);
    pcSlice->setDeblockingFilterTcOffsetDiv2(pcPPS->getDeblockingFilterTcOffsetDiv2()[tcIdx]);

    pcSlice->setDeblockingFilterCbBetaOffsetDiv2(pcPPS->getDeblockingFilterBetaOffsetDiv2()[betaIdx]);
    pcSlice->setDeblockingFilterCbTcOffsetDiv2(pcPPS->getDeblockingFilterTcOffsetDiv2()[tcIdx]);
    pcSlice->setDeblockingFilterCrBetaOffsetDiv2(pcPPS->getDeblockingFilterBetaOffsetDiv2()[betaIdx]);
    pcSlice->setDeblockingFilterCrTcOffsetDiv2(pcPPS->getDeblockingFilterTcOffsetDiv2()[tcIdx]);
  }
}
#endif

#if W0038_DB_OPT
void EncGOP::applyDeblockingFilterParameterSelection( Picture* pcPic, const uint32_t numSlices, const int gopID )
{
  enum DBFltParam
  {
    DBFLT_PARAM_AVAILABLE = 0,
    DBFLT_DISABLE_FLAG,
    DBFLT_BETA_OFFSETD2,
    DBFLT_TC_OFFSETD2,
    //NUM_DBFLT_PARAMS
  };
  const int MAX_BETA_OFFSET = 3;
  const int MIN_BETA_OFFSET = -3;
  const int MAX_TC_OFFSET = 3;
  const int MIN_TC_OFFSET = -3;

  PelUnitBuf reco = pcPic->getRecoBuf();

  const int currQualityLayer = (!pcPic->slices[0]->isIRAP()) ? m_pcCfg->getGOPEntry(gopID).m_temporalId+1 : 0;
  CHECK(!(currQualityLayer <MAX_ENCODER_DEBLOCKING_QUALITY_LAYERS), "Unspecified error");

  CodingStructure& cs = *pcPic->cs;

  if(!m_pcDeblockingTempPicYuv)
  {
    m_pcDeblockingTempPicYuv = new PelStorage;
    m_pcDeblockingTempPicYuv->create( cs.area );
    memset(m_DBParam, 0, sizeof(m_DBParam));
  }

  //preserve current reconstruction
  m_pcDeblockingTempPicYuv->copyFrom ( reco );

  const bool bNoFiltering      = m_DBParam[currQualityLayer][DBFLT_PARAM_AVAILABLE] && m_DBParam[currQualityLayer][DBFLT_DISABLE_FLAG]==false /*&& pcPic->getTLayer()==0*/;
  const int  maxBetaOffsetDiv2 = bNoFiltering? Clip3(MIN_BETA_OFFSET, MAX_BETA_OFFSET, m_DBParam[currQualityLayer][DBFLT_BETA_OFFSETD2]+1) : MAX_BETA_OFFSET;
  const int  minBetaOffsetDiv2 = bNoFiltering? Clip3(MIN_BETA_OFFSET, MAX_BETA_OFFSET, m_DBParam[currQualityLayer][DBFLT_BETA_OFFSETD2]-1) : MIN_BETA_OFFSET;
  const int  maxTcOffsetDiv2   = bNoFiltering? Clip3(MIN_TC_OFFSET, MAX_TC_OFFSET, m_DBParam[currQualityLayer][DBFLT_TC_OFFSETD2]+2)       : MAX_TC_OFFSET;
  const int  minTcOffsetDiv2   = bNoFiltering? Clip3(MIN_TC_OFFSET, MAX_TC_OFFSET, m_DBParam[currQualityLayer][DBFLT_TC_OFFSETD2]-2)       : MIN_TC_OFFSET;

  uint64_t distBetaPrevious      = std::numeric_limits<uint64_t>::max();
  uint64_t distMin               = std::numeric_limits<uint64_t>::max();
  bool   bDBFilterDisabledBest = true;
  int    betaOffsetDiv2Best    = 0;
  int    tcOffsetDiv2Best      = 0;

  for(int betaOffsetDiv2=maxBetaOffsetDiv2; betaOffsetDiv2>=minBetaOffsetDiv2; betaOffsetDiv2--)
  {
    uint64_t distTcMin = std::numeric_limits<uint64_t>::max();
    for(int tcOffsetDiv2=maxTcOffsetDiv2; tcOffsetDiv2 >= minTcOffsetDiv2; tcOffsetDiv2--)
    {
      for (int i=0; i<numSlices; i++)
      {
        Slice* pcSlice = pcPic->slices[i];
        pcSlice->setDeblockingFilterOverrideFlag  ( true);
        pcSlice->setDeblockingFilterDisable       ( false);
        pcSlice->setDeblockingFilterBetaOffsetDiv2( betaOffsetDiv2 );
        pcSlice->setDeblockingFilterTcOffsetDiv2  ( tcOffsetDiv2 );
        pcSlice->setDeblockingFilterCbBetaOffsetDiv2( betaOffsetDiv2 );
        pcSlice->setDeblockingFilterCbTcOffsetDiv2  ( tcOffsetDiv2 );
        pcSlice->setDeblockingFilterCrBetaOffsetDiv2( betaOffsetDiv2 );
        pcSlice->setDeblockingFilterCrTcOffsetDiv2  ( tcOffsetDiv2 );
      }

      // restore reconstruction
      reco.copyFrom( *m_pcDeblockingTempPicYuv );

      const uint64_t dist = preLoopFilterPicAndCalcDist( pcPic );

      if(dist < distMin)
      {
        distMin = dist;
        bDBFilterDisabledBest = false;
        betaOffsetDiv2Best  = betaOffsetDiv2;
        tcOffsetDiv2Best = tcOffsetDiv2;
      }
      if(dist < distTcMin)
      {
        distTcMin = dist;
      }
      else if(tcOffsetDiv2 <-2)
      {
        break;
      }
    }
    if(betaOffsetDiv2<-1 && distTcMin >= distBetaPrevious)
    {
      break;
    }
    distBetaPrevious = distTcMin;
  }

  //update:
  m_DBParam[currQualityLayer][DBFLT_PARAM_AVAILABLE] = 1;
  m_DBParam[currQualityLayer][DBFLT_DISABLE_FLAG]    = bDBFilterDisabledBest;
  m_DBParam[currQualityLayer][DBFLT_BETA_OFFSETD2]   = betaOffsetDiv2Best;
  m_DBParam[currQualityLayer][DBFLT_TC_OFFSETD2]     = tcOffsetDiv2Best;

  // restore reconstruction
  reco.copyFrom( *m_pcDeblockingTempPicYuv );

  const PPS* pcPPS = pcPic->slices[0]->getPPS();
#if DB_PARAM_TID
  int betaIdx = Clip3(0, (int)pcPPS->getDeblockingFilterBetaOffsetDiv2().size() - 1, (int)pcPic->slices[0]->getTLayer() + (pcPic->slices[0]->isIntra() ? 0 : 1));
  int tcIdx = Clip3(0, (int)pcPPS->getDeblockingFilterTcOffsetDiv2().size() - 1, (int)pcPic->slices[0]->getTLayer()) + (pcPic->slices[0]->isIntra() ? 0 : 1);
#endif
  if(bDBFilterDisabledBest)
  {
    for (int i=0; i<numSlices; i++)
    {
      Slice* pcSlice = pcPic->slices[i];
      pcSlice->setDeblockingFilterOverrideFlag( true);
      pcSlice->setDeblockingFilterDisable     ( true);
    }
  }
#if DB_PARAM_TID
  else if (betaOffsetDiv2Best == pcPPS->getDeblockingFilterBetaOffsetDiv2()[betaIdx] && tcOffsetDiv2Best == pcPPS->getDeblockingFilterTcOffsetDiv2()[tcIdx])
#else
  else if(betaOffsetDiv2Best == pcPPS->getDeblockingFilterBetaOffsetDiv2() &&  tcOffsetDiv2Best == pcPPS->getDeblockingFilterTcOffsetDiv2())
#endif
  {
    for (int i=0; i<numSlices; i++)
    {
      Slice*      pcSlice = pcPic->slices[i];
      pcSlice->setDeblockingFilterOverrideFlag   ( false);
      pcSlice->setDeblockingFilterDisable        ( pcPPS->getPPSDeblockingFilterDisabledFlag() );
#if DB_PARAM_TID
      pcSlice->setDeblockingFilterBetaOffsetDiv2(pcPPS->getDeblockingFilterBetaOffsetDiv2()[betaIdx]);
      pcSlice->setDeblockingFilterTcOffsetDiv2(pcPPS->getDeblockingFilterTcOffsetDiv2()[tcIdx]);
      pcSlice->setDeblockingFilterCbBetaOffsetDiv2(pcPPS->getDeblockingFilterBetaOffsetDiv2()[betaIdx]);
      pcSlice->setDeblockingFilterCbTcOffsetDiv2(pcPPS->getDeblockingFilterTcOffsetDiv2()[tcIdx]);
      pcSlice->setDeblockingFilterCrBetaOffsetDiv2(pcPPS->getDeblockingFilterBetaOffsetDiv2()[betaIdx]);
      pcSlice->setDeblockingFilterCrTcOffsetDiv2(pcPPS->getDeblockingFilterTcOffsetDiv2()[tcIdx]);
#else
      pcSlice->setDeblockingFilterBetaOffsetDiv2 ( pcPPS->getDeblockingFilterBetaOffsetDiv2() );
      pcSlice->setDeblockingFilterTcOffsetDiv2   ( pcPPS->getDeblockingFilterTcOffsetDiv2()   );
      pcSlice->setDeblockingFilterCbBetaOffsetDiv2(pcPPS->getDeblockingFilterBetaOffsetDiv2());
      pcSlice->setDeblockingFilterCbTcOffsetDiv2(pcPPS->getDeblockingFilterTcOffsetDiv2());
      pcSlice->setDeblockingFilterCrBetaOffsetDiv2(pcPPS->getDeblockingFilterBetaOffsetDiv2());
      pcSlice->setDeblockingFilterCrTcOffsetDiv2(pcPPS->getDeblockingFilterTcOffsetDiv2());
#endif
    }
  }
  else
  {
    for (int i=0; i<numSlices; i++)
    {
      Slice* pcSlice = pcPic->slices[i];
      pcSlice->setDeblockingFilterOverrideFlag   ( true);
      pcSlice->setDeblockingFilterDisable        ( false );
      pcSlice->setDeblockingFilterBetaOffsetDiv2 ( betaOffsetDiv2Best);
      pcSlice->setDeblockingFilterTcOffsetDiv2   ( tcOffsetDiv2Best);
      pcSlice->setDeblockingFilterCbBetaOffsetDiv2 ( betaOffsetDiv2Best);
      pcSlice->setDeblockingFilterCbTcOffsetDiv2   ( tcOffsetDiv2Best);
      pcSlice->setDeblockingFilterCrBetaOffsetDiv2 ( betaOffsetDiv2Best);
      pcSlice->setDeblockingFilterCrTcOffsetDiv2   ( tcOffsetDiv2Best);
    }
  }
}
#endif

bool EncGOP::xCheckMaxTidILRefPics(Picture* refPic, bool currentPicIsIRAP)
{
  const int maxTidILRefPicsPlus1 = m_pcCfg->getVPSParameters().m_maxTidILRefPicsPlus1;

  // -1 means not set
  if (maxTidILRefPicsPlus1 < 0)
  {
    return true;
  }

  // 0 allows only IRAP pictures to use inter-layer prediction
  if (maxTidILRefPicsPlus1 == 0)
  {
    return currentPicIsIRAP;
  }

  // all other cases filter by temporalID
  return ( refPic->temporalId < maxTidILRefPicsPlus1 );
}

void EncGOP::xCreateExplicitReferencePictureSetFromReference( Slice* slice, PicList& rcListPic, const ReferencePictureList *rpl0, const ReferencePictureList *rpl1 )
{
  Picture* rpcPic;
  int pocCycle = 0;

  Picture* pic = slice->getPic();
  const VPS* vps = slice->getPic()->cs->vps;
  int layerIdx = vps == nullptr ? 0 : vps->getGeneralLayerIdx( pic->layerId );
  bool isIntraLayerPredAllowed = vps->getIndependentLayerFlag(layerIdx) || (vps->getPredDirection(slice->getTLayer()) != 1);
  bool isInterLayerPredAllowed = !vps->getIndependentLayerFlag(layerIdx) && (vps->getPredDirection(slice->getTLayer()) != 2);
  ReferencePictureList* pLocalRPL0 = slice->getLocalRPL0();
  *pLocalRPL0 = ReferencePictureList( slice->getSPS()->getInterLayerPresentFlag() );

  uint32_t numOfSTRPL0 = 0;
  uint32_t numOfLTRPL0 = 0;
  uint32_t numOfILRPL0 = 0;
  uint32_t numOfRefPic = rpl0->getNumberOfShorttermPictures() + rpl0->getNumberOfLongtermPictures();
  uint32_t refPicIdxL0 = 0;

  if (isIntraLayerPredAllowed)
  {
    for (int ii = 0; ii < numOfRefPic; ii++)
    {
      // loop through all pictures in the reference picture buffer
      PicList::iterator iterPic = rcListPic.begin();
      bool isAvailable = false;

      pocCycle = 1 << (slice->getSPS()->getBitsForPOC());
      while (iterPic != rcListPic.end())
      {
        rpcPic = *(iterPic++);

        if (rpcPic->layerId == pic->layerId)
        {
#if JVET_S0045_SIGN
          if (!rpl0->isRefPicLongterm(ii) && rpcPic->referenced
              && rpcPic->getPOC() == slice->getPOC() + rpl0->getRefPicIdentifier(ii)
              && !slice->isPocRestrictedByDRAP(rpcPic->getPOC(), rpcPic->precedingDRAP))
#else
          if (!rpl0->isRefPicLongterm(ii) && rpcPic->referenced && rpcPic->getPOC() == slice->getPOC() - rpl0->getRefPicIdentifier(ii) && !slice->isPocRestrictedByDRAP(rpcPic->getPOC(), rpcPic->precedingDRAP))
#endif
          {
            isAvailable = true;
            break;
          }
          else if (rpl0->isRefPicLongterm(ii) && rpcPic->referenced && (rpcPic->getPOC() & (pocCycle - 1)) == rpl0->getRefPicIdentifier(ii) && !slice->isPocRestrictedByDRAP(rpcPic->getPOC(), rpcPic->precedingDRAP))
          {
            isAvailable = true;
            break;
          }
        }
      }

      if (isAvailable)
      {
        pLocalRPL0->setRefPicIdentifier(refPicIdxL0, rpl0->getRefPicIdentifier(ii), rpl0->isRefPicLongterm(ii), false, NOT_VALID);
        refPicIdxL0++;
        numOfSTRPL0 = numOfSTRPL0 + ((rpl0->isRefPicLongterm(ii)) ? 0 : 1);
        numOfLTRPL0 += (rpl0->isRefPicLongterm(ii) && !rpl0->isInterLayerRefPic(ii)) ? 1 : 0;
        isAvailable = false;
      }
    }
  }

  // inter-layer reference pictures are added to the end of the reference picture list
  if (layerIdx && vps && !vps->getAllIndependentLayersFlag() && isInterLayerPredAllowed)
  {
    numOfRefPic = rpl0->getNumberOfInterLayerPictures() ? rpl0->getNumberOfInterLayerPictures() : m_pcEncLib->getNumRefLayers( layerIdx );

    for( int ii = 0; ii < numOfRefPic; ii++ )
    {
      // loop through all pictures in the reference picture buffer
      PicList::iterator iterPic = rcListPic.begin();

      while( iterPic != rcListPic.end() && ii < numOfRefPic )
      {
        rpcPic = *( iterPic++ );
        int refLayerIdx = vps->getGeneralLayerIdx( rpcPic->layerId );
        if (rpcPic->referenced && rpcPic->getPOC() == pic->getPOC() && vps->getDirectRefLayerFlag(layerIdx, refLayerIdx)
            && xCheckMaxTidILRefPics(rpcPic, slice->isIRAP()) )
        {
          pLocalRPL0->setRefPicIdentifier( refPicIdxL0, 0, true, true, vps->getInterLayerRefIdc( layerIdx, refLayerIdx ) );
          refPicIdxL0++;
          numOfILRPL0++;
          ii++;
        }
      }
    }
  }

  if( slice->getEnableDRAPSEI() )
  {
    pLocalRPL0->setNumberOfShorttermPictures( numOfSTRPL0 );
    pLocalRPL0->setNumberOfLongtermPictures( numOfLTRPL0 );
    pLocalRPL0->setNumberOfInterLayerPictures( numOfILRPL0 );

    if( !slice->isIRAP() && !slice->isPOCInRefPicList( pLocalRPL0, slice->getAssociatedIRAPPOC() ) )
    {
      if( slice->getUseLTforDRAP() && !slice->isPOCInRefPicList( rpl1, slice->getAssociatedIRAPPOC() ) )
      {
        // Adding associated IRAP as longterm picture
        pLocalRPL0->setRefPicIdentifier( refPicIdxL0, slice->getAssociatedIRAPPOC(), true, false, 0 );
        refPicIdxL0++;
        numOfLTRPL0++;
      }
      else
      {
        // Adding associated IRAP as shortterm picture
#if JVET_S0045_SIGN
        pLocalRPL0->setRefPicIdentifier(refPicIdxL0, slice->getAssociatedIRAPPOC() - slice->getPOC(), false, false, 0);
#else
        pLocalRPL0->setRefPicIdentifier( refPicIdxL0, slice->getPOC() - slice->getAssociatedIRAPPOC(), false, false, 0 );
#endif
        refPicIdxL0++;
        numOfSTRPL0++;
      }
    }
  }

  ReferencePictureList* pLocalRPL1 = slice->getLocalRPL1();
  *pLocalRPL1 = ReferencePictureList( slice->getSPS()->getInterLayerPresentFlag() );

  uint32_t numOfSTRPL1 = 0;
  uint32_t numOfLTRPL1 = 0;
  uint32_t numOfILRPL1 = 0;
  numOfRefPic = rpl1->getNumberOfShorttermPictures() + rpl1->getNumberOfLongtermPictures();
  uint32_t refPicIdxL1 = 0;

  if (isIntraLayerPredAllowed)
  {
    for (int ii = 0; ii < numOfRefPic; ii++)
    {
      // loop through all pictures in the reference picture buffer
      PicList::iterator iterPic = rcListPic.begin();
      bool isAvailable = false;
      pocCycle = 1 << (slice->getSPS()->getBitsForPOC());
      while (iterPic != rcListPic.end())
      {
        rpcPic = *(iterPic++);
        if (rpcPic->layerId == pic->layerId)
        {
#if JVET_S0045_SIGN
          if (!rpl1->isRefPicLongterm(ii) && rpcPic->referenced
              && rpcPic->getPOC() == slice->getPOC() + rpl1->getRefPicIdentifier(ii)
              && !slice->isPocRestrictedByDRAP(rpcPic->getPOC(), rpcPic->precedingDRAP))
#else
          if (!rpl1->isRefPicLongterm(ii) && rpcPic->referenced && rpcPic->getPOC() == slice->getPOC() - rpl1->getRefPicIdentifier(ii) && !slice->isPocRestrictedByDRAP(rpcPic->getPOC(), rpcPic->precedingDRAP))
#endif
          {
            isAvailable = true;
            break;
          }
          else if (rpl1->isRefPicLongterm(ii) && rpcPic->referenced && (rpcPic->getPOC() & (pocCycle - 1)) == rpl1->getRefPicIdentifier(ii) && !slice->isPocRestrictedByDRAP(rpcPic->getPOC(), rpcPic->precedingDRAP))
          {
            isAvailable = true;
            break;
          }
        }
      }

      if (isAvailable)
      {
        pLocalRPL1->setRefPicIdentifier(refPicIdxL1, rpl1->getRefPicIdentifier(ii), rpl1->isRefPicLongterm(ii), false, NOT_VALID);
        refPicIdxL1++;
        numOfSTRPL1 = numOfSTRPL1 + ((rpl1->isRefPicLongterm(ii)) ? 0 : 1);
        numOfLTRPL1 += (rpl1->isRefPicLongterm(ii) && !rpl1->isInterLayerRefPic(ii)) ? 1 : 0;
        isAvailable = false;
      }
    }
  }


  // inter-layer reference pictures are added to the end of the reference picture list
  if (layerIdx && vps && !vps->getAllIndependentLayersFlag() && isInterLayerPredAllowed)
  {
    numOfRefPic = rpl1->getNumberOfInterLayerPictures() ? rpl1->getNumberOfInterLayerPictures() : m_pcEncLib->getNumRefLayers( layerIdx );

    for( int ii = 0; ii < numOfRefPic; ii++ )
    {
      // loop through all pictures in the reference picture buffer
      PicList::iterator iterPic = rcListPic.begin();

      while( iterPic != rcListPic.end() && ii < numOfRefPic )
      {
        rpcPic = *( iterPic++ );
        int refLayerIdx = vps->getGeneralLayerIdx( rpcPic->layerId );
        if (rpcPic->referenced && rpcPic->getPOC() == pic->getPOC() && vps->getDirectRefLayerFlag(layerIdx, refLayerIdx)
            && xCheckMaxTidILRefPics( rpcPic, slice->isIRAP() ) )
        {
          pLocalRPL1->setRefPicIdentifier( refPicIdxL1, 0, true, true, vps->getInterLayerRefIdc( layerIdx, refLayerIdx ) );
          refPicIdxL1++;
          numOfILRPL1++;
          ii++;
        }
      }
    }
  }

  //Copy from L1 if we have less than active ref pic
  int numOfNeedToFill = rpl0->getNumberOfActivePictures() - (numOfLTRPL0 + numOfSTRPL0);
  bool isDisallowMixedRefPic = ( slice->getSPS()->getAllActiveRplEntriesHasSameSignFlag() ) ? true : false;
  int originalL0StrpNum = numOfSTRPL0;
  int originalL0LtrpNum = numOfLTRPL0;
  int originalL0IlrpNum = numOfILRPL0;

  for( int ii = 0; numOfNeedToFill > 0 && ii < ( pLocalRPL1->getNumberOfLongtermPictures() + pLocalRPL1->getNumberOfShorttermPictures() + pLocalRPL1->getNumberOfInterLayerPictures() ); ii++ )
  {
    if( ii <= ( numOfLTRPL1 + numOfSTRPL1 + numOfILRPL1 - 1 ) )
    {
      //Make sure this copy is not already in L0
      bool canIncludeThis = true;
      for( int jj = 0; jj < refPicIdxL0; jj++ )
      {
        if( ( pLocalRPL1->getRefPicIdentifier( ii ) == pLocalRPL0->getRefPicIdentifier( jj ) ) && ( pLocalRPL1->isRefPicLongterm( ii ) == pLocalRPL0->isRefPicLongterm( jj ) ) && pLocalRPL1->getInterLayerRefPicIdx( ii ) == pLocalRPL0->getInterLayerRefPicIdx( jj ) )
        {
          canIncludeThis = false;
        }

        bool sameSign = ( pLocalRPL1->getRefPicIdentifier( ii ) > 0 ) == ( pLocalRPL0->getRefPicIdentifier( 0 ) > 0 );

        if( isDisallowMixedRefPic && canIncludeThis && !pLocalRPL1->isRefPicLongterm( ii ) && !sameSign )
        {
          canIncludeThis = false;
        }
      }
      if( canIncludeThis )
      {
        pLocalRPL0->setRefPicIdentifier( refPicIdxL0, pLocalRPL1->getRefPicIdentifier( ii ), pLocalRPL1->isRefPicLongterm( ii ), pLocalRPL1->isInterLayerRefPic( ii ), pLocalRPL1->getInterLayerRefPicIdx( ii ) );
        refPicIdxL0++;
        numOfSTRPL0 = numOfSTRPL0 + ( ( pLocalRPL1->isRefPicLongterm( ii ) ) ? 0 : 1 );
        numOfLTRPL0 += ( pLocalRPL1->isRefPicLongterm( ii ) && !pLocalRPL1->isInterLayerRefPic( ii ) ) ? 1 : 0;
        numOfILRPL0 += pLocalRPL1->isInterLayerRefPic( ii ) ? 1 : 0;
        numOfNeedToFill--;
      }
    }
  }
  pLocalRPL0->setNumberOfLongtermPictures( numOfLTRPL0 );
  pLocalRPL0->setNumberOfShorttermPictures( numOfSTRPL0 );
  pLocalRPL0->setNumberOfInterLayerPictures( numOfILRPL0 );
  int numPics = numOfLTRPL0 + numOfSTRPL0;

  pLocalRPL0->setNumberOfActivePictures( ( numPics < rpl0->getNumberOfActivePictures() ? numPics : rpl0->getNumberOfActivePictures() ) + numOfILRPL0 );
  pLocalRPL0->setLtrpInSliceHeaderFlag( 1 );
  slice->setRPL0idx( -1 );
  slice->setRPL0( pLocalRPL0 );

  //Copy from L0 if we have less than active ref pic
  numOfNeedToFill = pLocalRPL0->getNumberOfActivePictures() - ( numOfLTRPL1 + numOfSTRPL1 );

  for( int ii = 0; numOfNeedToFill > 0 && ii < ( pLocalRPL0->getNumberOfLongtermPictures() + pLocalRPL0->getNumberOfShorttermPictures() + pLocalRPL0->getNumberOfInterLayerPictures() ); ii++ )
  {
    if( ii <= ( originalL0StrpNum + originalL0LtrpNum + originalL0IlrpNum - 1 ) )
    {
      //Make sure this copy is not already in L0
      bool canIncludeThis = true;
      for( int jj = 0; jj < refPicIdxL1; jj++ )
      {
        if( ( pLocalRPL0->getRefPicIdentifier( ii ) == pLocalRPL1->getRefPicIdentifier( jj ) ) && ( pLocalRPL0->isRefPicLongterm( ii ) == pLocalRPL1->isRefPicLongterm( jj ) ) && pLocalRPL0->getInterLayerRefPicIdx( ii ) == pLocalRPL1->getInterLayerRefPicIdx( jj ) )
        {
          canIncludeThis = false;
        }

        bool sameSign = ( pLocalRPL0->getRefPicIdentifier( ii ) > 0 ) == ( pLocalRPL1->getRefPicIdentifier( 0 ) > 0 );

        if( isDisallowMixedRefPic && canIncludeThis && !pLocalRPL0->isRefPicLongterm( ii ) && !sameSign )
        {
          canIncludeThis = false;
        }
      }
      if( canIncludeThis )
      {
        pLocalRPL1->setRefPicIdentifier( refPicIdxL1, pLocalRPL0->getRefPicIdentifier( ii ), pLocalRPL0->isRefPicLongterm( ii ), pLocalRPL0->isInterLayerRefPic( ii ), pLocalRPL0->getInterLayerRefPicIdx( ii ) );
        refPicIdxL1++;
        numOfSTRPL1 = numOfSTRPL1 + ( ( pLocalRPL0->isRefPicLongterm( ii ) ) ? 0 : 1 );
        numOfLTRPL1 += ( pLocalRPL0->isRefPicLongterm( ii ) && !pLocalRPL0->isInterLayerRefPic( ii ) ) ? 1 : 0;
        numOfLTRPL1 += pLocalRPL0->isInterLayerRefPic( ii ) ? 1 : 0;
        numOfNeedToFill--;
      }
    }
  }
  pLocalRPL1->setNumberOfLongtermPictures( numOfLTRPL1 );
  pLocalRPL1->setNumberOfShorttermPictures( numOfSTRPL1 );
  pLocalRPL1->setNumberOfInterLayerPictures( numOfILRPL1 );
  numPics = numOfLTRPL1 + numOfSTRPL1;

  pLocalRPL1->setNumberOfActivePictures( ( isDisallowMixedRefPic ? numPics : ( numPics < rpl1->getNumberOfActivePictures() ? numPics : rpl1->getNumberOfActivePictures() ) ) + numOfILRPL1 );
  pLocalRPL1->setLtrpInSliceHeaderFlag( 1 );
  slice->setRPL1idx( -1 );
  slice->setRPL1( pLocalRPL1 );
}
//! \}