private byte Generate(HuffmanTable h)
        {
            int i = 0;
            byte codevalue = 0;
            int[] codelength = new int[16] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 };
            for (int k = 0; k < 16; k++)
            {
                for (int j = 0; j < h.NumberOfCodeword[k]; j++)
                {
                    h.Category[i] = codevalue;
                    codelength[i] = k;
                    codevalue++;
                    i++;
                }
                codevalue *= 2;
            }
        }