public uint Decode(RangeDecoder decoder)
{
uint newBound = (decoder.Range >> kNumBitModelTotalBits) * Prob;
if (decoder.Code < newBound)
{
decoder.Range = newBound;
Prob += (kBitModelTotal - Prob) >> numMoveBits;
if (decoder.Range < kTopValue)
{
decoder.Code = (decoder.Code << 8) | decoder.ReadByte();
decoder.Range <<= 8;
}
return(0);
}
else
{
decoder.Range -= newBound;
decoder.Code -= newBound;
Prob -= Prob >> numMoveBits;
if (decoder.Range < kTopValue)
{
decoder.Code = (decoder.Code << 8) | decoder.ReadByte();
decoder.Range <<= 8;
}
return(1);
}
}
public uint Decode(RangeDecoder decoder)
{
uint newBound = (decoder._range >> K_NUM_BIT_MODEL_TOTAL_BITS) * _prob;
if (decoder._code < newBound)
{
decoder._range = newBound;
_prob += (K_BIT_MODEL_TOTAL - _prob) >> NUM_MOVE_BITS;
if (decoder._range < K_TOP_VALUE)
{
decoder._code = (decoder._code << 8) | decoder.ReadByte();
decoder._range <<= 8;
}
return(0);
}
decoder._range -= newBound;
decoder._code -= newBound;
_prob -= _prob >> NUM_MOVE_BITS;
if (decoder._range < K_TOP_VALUE)
{
decoder._code = (decoder._code << 8) | decoder.ReadByte();
decoder._range <<= 8;
}
return(1);
}
public uint Decode(RangeDecoder decoder)
{
uint newBound = (decoder.Range >> kNumBitModelTotalBits) * Prob;
if (decoder.Code < newBound)
{
decoder.Range = newBound;
Prob += (kBitModelTotal - Prob) >> numMoveBits;
if (decoder.Range < kTopValue)
{
decoder.Code = (decoder.Code << 8) | decoder.ReadByte();
decoder.Range <<= 8;
}
return 0;
}
else
{
decoder.Range -= newBound;
decoder.Code -= newBound;
Prob -= Prob >> numMoveBits;
if (decoder.Range < kTopValue)
{
decoder.Code = (decoder.Code << 8) | decoder.ReadByte();
decoder.Range <<= 8;
}
return 1;
}
}
