QuantRDOQ.cpp

  {
    rate += fracBitsGt1.intBits[1];
    rate += fracBitsPar.intBits[( absLevel - 2 ) & 1];
#if JVET_P0072_SIMPLIFIED_TSRC
    numCtxBins += 2;
#endif

          int cutoffVal = 2;
    const int numGtBins = 4;
    for( int i = 0; i < numGtBins; i++ )
    {
      if( absLevel >= cutoffVal )
      {
        const uint16_t ctxGtX = cctx.greaterXCtxIdAbsTS( cutoffVal>>1 );
        const BinFracBits &fracBitsGtX = fracBitsAccess.getFracBitsArray( ctxGtX );
        unsigned gtX = ( absLevel >= ( cutoffVal + 2 ) );
        rate += fracBitsGtX.intBits[gtX];
#if JVET_P0072_SIMPLIFIED_TSRC
        numCtxBins++;
#endif
      }
      cutoffVal += 2;
    }

    if( absLevel >= cutoffVal )
    {
      uint32_t symbol = ( absLevel - cutoffVal ) >> 1;
      uint32_t length;
      const int threshold = COEF_REMAIN_BIN_REDUCTION;
      if( symbol < ( threshold << ricePar ) )
      {
        length = symbol >> ricePar;
        rate  += ( length + 1 + ricePar ) << SCALE_BITS;
      }
      else if( useLimitedPrefixLength )
      {
        const uint32_t maximumPrefixLength = ( 32 - ( COEF_REMAIN_BIN_REDUCTION + maxLog2TrDynamicRange ) );

        uint32_t prefixLength = 0;
        uint32_t suffix = ( symbol >> ricePar ) - COEF_REMAIN_BIN_REDUCTION;

        while( ( prefixLength < maximumPrefixLength ) && ( suffix > ( ( 2 << prefixLength ) - 2 ) ) )
        {
          prefixLength++;
        }

        const uint32_t suffixLength = ( prefixLength == maximumPrefixLength ) ? ( maxLog2TrDynamicRange - ricePar ) : ( prefixLength + 1/*separator*/ );

        rate += ( COEF_REMAIN_BIN_REDUCTION + prefixLength + suffixLength + ricePar ) << SCALE_BITS;
      }
      else
      {
        length = ricePar;
        symbol = symbol - ( threshold << ricePar );
        while( symbol >= ( 1 << length ) )
        {
          symbol -= ( 1 << ( length++ ) );
        }
        rate += ( threshold + length + 1 - ricePar + length ) << SCALE_BITS;
      }
    }
  }
  else if( absLevel == 1 )
  {
    rate += fracBitsGt1.intBits[0];
#if JVET_P0072_SIMPLIFIED_TSRC
    numCtxBins++;
#endif
  }
  else
  {
    rate = 0;
  }
  return rate;
}

//! \}