예제 #1
0
                public byte DecodeWithMatchByte(RangeCoder.Decoder rangeDecoder, byte matchByte)
                {
                    uint symbol = 1;

                    do
                    {
                        uint matchBit = (uint)(matchByte >> 7) & 1;
                        matchByte <<= 1;
                        uint bit = m_Decoders[((1 + matchBit) << 8) + symbol].Decode(rangeDecoder);
                        symbol = (symbol << 1) | bit;
                        if (matchBit != bit)
                        {
                            while (symbol < 0x100)
                            {
                                symbol = (symbol << 1) | m_Decoders[symbol].Decode(rangeDecoder);
                            }
                            break;
                        }
                    }while (symbol < 0x100);
                    return((byte)symbol);
                }
예제 #2
0
 public uint Decode(RangeCoder.Decoder rangeDecoder, uint posState)
 {
     if (m_Choice.Decode(rangeDecoder) == 0)
     {
         return(m_LowCoder[posState].Decode(rangeDecoder));
     }
     else
     {
         uint symbol = Base.kNumLowLenSymbols;
         if (m_Choice2.Decode(rangeDecoder) == 0)
         {
             symbol += m_MidCoder[posState].Decode(rangeDecoder);
         }
         else
         {
             symbol += Base.kNumMidLenSymbols;
             symbol += m_HighCoder.Decode(rangeDecoder);
         }
         return(symbol);
     }
 }
예제 #3
0
 public byte DecodeWithMatchByte(RangeCoder.Decoder rangeDecoder, uint pos, byte prevByte, byte matchByte)
 {
     return(m_Coders[GetState(pos, prevByte)].DecodeWithMatchByte(rangeDecoder, matchByte));
 }
예제 #4
0
 public byte DecodeNormal(RangeCoder.Decoder rangeDecoder, uint pos, byte prevByte)
 {
     return(m_Coders[GetState(pos, prevByte)].DecodeNormal(rangeDecoder));
 }