public static UInt32 ReverseGetPrice(BitEncoder[] Models, UInt32 startIndex, int NumBitLevels, UInt32 symbol) { UInt32 price = 0; UInt32 m = 1; for (int i = NumBitLevels; i > 0; i--) { UInt32 bit = symbol & 1; symbol >>= 1; price += Models[startIndex + m].GetPrice(bit); m = (m << 1) | bit; } return price; }
public static void ReverseEncode(BitEncoder[] Models, UInt32 startIndex, Encoder rangeEncoder, int NumBitLevels, UInt32 symbol) { UInt32 m = 1; for (int i = 0; i < NumBitLevels; i++) { UInt32 bit = symbol & 1; Models[startIndex + m].Encode(rangeEncoder, bit); m = (m << 1) | bit; symbol >>= 1; } }