InterPrediction.cpp

      const Pel* pSrcY1 = m_filteredBlockTmp[3][COMPONENT_Y] + 2 * src1Stride + 2;

      bool bioEnabled = xCalcBiPredSubBlkDist(pu, pSrcY0, src0Stride, pSrcY1, src1Stride, clipBitDepths);
      if (bioEnabled)
      {
        applyBiOptFlow(pu, pcYuvSrc0, pcYuvSrc1, iRefIdx0, iRefIdx1, pcYuvDst, clipBitDepths);
      }
      else
      {
        pcYuvDst.bufs[0].addAvg(CPelBuf(pSrcY0, src0Stride, pu.lumaSize()), CPelBuf(pSrcY1, src1Stride, pu.lumaSize()), clpRngs.comp[0]);
      }
    }
    pcYuvDst.addAvg(pcYuvSrc0, pcYuvSrc1, clpRngs, bioApplied);
#else
    pcYuvDst.addAvg( pcYuvSrc0, pcYuvSrc1, clpRngs );
#endif
  }
  else if( iRefIdx0 >= 0 && iRefIdx1 < 0 )
  {
    pcYuvDst.copyClip( pcYuvSrc0, clpRngs );
  }
  else if( iRefIdx0 < 0 && iRefIdx1 >= 0 )
  {
    pcYuvDst.copyClip( pcYuvSrc1, clpRngs );
  }
}

void InterPrediction::motionCompensation( PredictionUnit &pu, PelUnitBuf &predBuf, const RefPicList &eRefPicList 
)
{
        CodingStructure &cs = *pu.cs;
  const PPS &pps            = *cs.pps;
  const SliceType sliceType =  cs.slice->getSliceType();

  if( eRefPicList != REF_PIC_LIST_X )
  {
    if( ( ( sliceType == P_SLICE && pps.getUseWP() ) || ( sliceType == B_SLICE && pps.getWPBiPred() ) ) )
    {
      xPredInterUni         ( pu,          eRefPicList, predBuf, true );
      xWeightedPredictionUni( pu, predBuf, eRefPicList, predBuf, -1, m_maxCompIDToPred );
    }
    else
    {
      xPredInterUni( pu, eRefPicList, predBuf, false );
    }
  }
  else
  {
    if( pu.mergeType != MRG_TYPE_DEFAULT_N )
    {
      xSubPuMC( pu, predBuf, eRefPicList );
    }
    else if( xCheckIdenticalMotion( pu ) )
    {
      xPredInterUni( pu, REF_PIC_LIST_0, predBuf, false );
    }
    else
    {
      xPredInterBi( pu, predBuf );
    }
  }
  return;
}

void InterPrediction::motionCompensation( CodingUnit &cu, const RefPicList &eRefPicList 
)
{
  for( auto &pu : CU::traversePUs( cu ) )
  {
    PelUnitBuf predBuf = cu.cs->getPredBuf( pu );
    motionCompensation( pu, predBuf, eRefPicList );
  }
}

void InterPrediction::motionCompensation( PredictionUnit &pu, const RefPicList &eRefPicList /*= REF_PIC_LIST_X*/ 
)
{
  PelUnitBuf predBuf = pu.cs->getPredBuf( pu );
  motionCompensation( pu, predBuf, eRefPicList 
  );
}

#if JVET_L0256_BIO
int InterPrediction::rightShiftMSB(int numer, int denom)
{
  int     d;
  int msbIdx = 0;
  for (msbIdx = 0; msbIdx<32; msbIdx++)
  {
    if (denom < ((int)1 << msbIdx))
    {
      break;
    }
  }

  int shiftIdx = msbIdx - 1;
  d = (numer >> shiftIdx);

  return d;
}
#endif

#if JVET_J0090_MEMORY_BANDWITH_MEASURE
void InterPrediction::cacheAssign( CacheModel *cache )
{
  m_cacheModel = cache;
  m_if.cacheAssign( cache );
  m_if.initInterpolationFilter( !cache->isCacheEnable() );
}
#endif

//! \}