Esempio n. 1
0
        public void Encode(BinaryCoder enc, uint value)
        {
            ++value;

            int magnitude = 0;

            while (value >= (2u << magnitude))
            {
                ++magnitude;
            }
            m_magnitude.Encode(enc, magnitude);

            uint mask = (uint)(magnitude == 0 ? 1u << (magnitude - 1) : 0);

            if (mask != 0)
            {
                int top = (magnitude < MAX_TOP) ? magnitude : MAX_TOP;
                m_bitPositions[top].Encode(enc, ((value & mask) != 0) ? 1:0);

                mask >>= 1;
                while (mask != 0)
                {
                    int bit = (value & mask) != 0 ? 1 : 0;
                    enc.Encode(bit, CoderConstants.PROB_MAX / 2);
                    mask >>= 1;
                }
            }
        }
Esempio n. 2
0
        public void Encode(BinaryCoder enc, int val, bool signPred)
        {
            int absv = (val < 0) ? -val : val;

            m_absoluteVal.Encode(enc, (uint)absv);
            if (absv != 0)
            {
                m_signs[signPred ? 1 : 0].Encode(enc, val < 0 ? 1 : 0);
            }
        }
Esempio n. 3
0
        public void Encode(BinaryCoder enc, int value)
        {
            if (m_init == false)
            {
                throw new Exception("BitTreeMode uninitialized!");
            }
            int context = 1;

            while (context < m_totalSymbols)
            {
                int bit = ((value & m_MSB) != 0) ? 1 : 0;
                value += value;
                m_model[context - 1].Encode(enc, bit);
                context += context + bit;
            }
        }
Esempio n. 4
0
 public void Encode(BinaryCoder enc, int bit)
 {
     enc.Encode(bit, m_prob);
     Adapt(bit);
 }