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ffmpeg / libavcodec / mpeg4data.h @ 13b54752

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/* dc encoding for mpeg4 */
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static const UINT8 DCtab_lum[13][2] =
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{
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    {3,3}, {3,2}, {2,2}, {2,3}, {1,3}, {1,4}, {1,5}, {1,6}, {1,7},
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    {1,8}, {1,9}, {1,10}, {1,11},
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}; 
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static const UINT8 DCtab_chrom[13][2] =
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{
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    {3,2}, {2,2}, {1,2}, {1,3}, {1,4}, {1,5}, {1,6}, {1,7}, {1,8},
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    {1,9}, {1,10}, {1,11}, {1,12},
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}; 
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const UINT16 intra_vlc[103][2] = {
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{ 0x2, 2 },
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{ 0x6, 3 },{ 0xf, 4 },{ 0xd, 5 },{ 0xc, 5 },
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{ 0x15, 6 },{ 0x13, 6 },{ 0x12, 6 },{ 0x17, 7 },
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{ 0x1f, 8 },{ 0x1e, 8 },{ 0x1d, 8 },{ 0x25, 9 },
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{ 0x24, 9 },{ 0x23, 9 },{ 0x21, 9 },{ 0x21, 10 },
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{ 0x20, 10 },{ 0xf, 10 },{ 0xe, 10 },{ 0x7, 11 },
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{ 0x6, 11 },{ 0x20, 11 },{ 0x21, 11 },{ 0x50, 12 },
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{ 0x51, 12 },{ 0x52, 12 },{ 0xe, 4 },{ 0x14, 6 },
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{ 0x16, 7 },{ 0x1c, 8 },{ 0x20, 9 },{ 0x1f, 9 },
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{ 0xd, 10 },{ 0x22, 11 },{ 0x53, 12 },{ 0x55, 12 },
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{ 0xb, 5 },{ 0x15, 7 },{ 0x1e, 9 },{ 0xc, 10 },
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{ 0x56, 12 },{ 0x11, 6 },{ 0x1b, 8 },{ 0x1d, 9 },
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{ 0xb, 10 },{ 0x10, 6 },{ 0x22, 9 },{ 0xa, 10 },
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{ 0xd, 6 },{ 0x1c, 9 },{ 0x8, 10 },{ 0x12, 7 },
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{ 0x1b, 9 },{ 0x54, 12 },{ 0x14, 7 },{ 0x1a, 9 },
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{ 0x57, 12 },{ 0x19, 8 },{ 0x9, 10 },{ 0x18, 8 },
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{ 0x23, 11 },{ 0x17, 8 },{ 0x19, 9 },{ 0x18, 9 },
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{ 0x7, 10 },{ 0x58, 12 },{ 0x7, 4 },{ 0xc, 6 },
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{ 0x16, 8 },{ 0x17, 9 },{ 0x6, 10 },{ 0x5, 11 },
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{ 0x4, 11 },{ 0x59, 12 },{ 0xf, 6 },{ 0x16, 9 },
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{ 0x5, 10 },{ 0xe, 6 },{ 0x4, 10 },{ 0x11, 7 },
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{ 0x24, 11 },{ 0x10, 7 },{ 0x25, 11 },{ 0x13, 7 },
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{ 0x5a, 12 },{ 0x15, 8 },{ 0x5b, 12 },{ 0x14, 8 },
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{ 0x13, 8 },{ 0x1a, 8 },{ 0x15, 9 },{ 0x14, 9 },
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{ 0x13, 9 },{ 0x12, 9 },{ 0x11, 9 },{ 0x26, 11 },
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{ 0x27, 11 },{ 0x5c, 12 },{ 0x5d, 12 },{ 0x5e, 12 },
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{ 0x5f, 12 },{ 0x3, 7 },
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};
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const INT8 intra_level[102] = {
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  1,  2,  3,  4,  5,  6,  7,  8,
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  9, 10, 11, 12, 13, 14, 15, 16,
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 17, 18, 19, 20, 21, 22, 23, 24,
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 25, 26, 27,  1,  2,  3,  4,  5,
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  6,  7,  8,  9, 10,  1,  2,  3,
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  4,  5,  1,  2,  3,  4,  1,  2,
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  3,  1,  2,  3,  1,  2,  3,  1,
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  2,  3,  1,  2,  1,  2,  1,  1,
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  1,  1,  1,  1,  2,  3,  4,  5,
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  6,  7,  8,  1,  2,  3,  1,  2,
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  1,  2,  1,  2,  1,  2,  1,  2,
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  1,  1,  1,  1,  1,  1,  1,  1,
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  1,  1,  1,  1,  1,  1,
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};
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const INT8 intra_run[102] = {
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  0,  0,  0,  0,  0,  0,  0,  0,
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  0,  0,  0,  0,  0,  0,  0,  0,
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  0,  0,  0,  0,  0,  0,  0,  0,
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  0,  0,  0,  1,  1,  1,  1,  1,
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  1,  1,  1,  1,  1,  2,  2,  2,
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  2,  2,  3,  3,  3,  3,  4,  4,
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  4,  5,  5,  5,  6,  6,  6,  7,
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  7,  7,  8,  8,  9,  9, 10, 11,
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 12, 13, 14,  0,  0,  0,  0,  0,
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  0,  0,  0,  1,  1,  1,  2,  2,
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  3,  3,  4,  4,  5,  5,  6,  6,
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  7,  8,  9, 10, 11, 12, 13, 14,
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 15, 16, 17, 18, 19, 20,
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};
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static RLTable rl_intra = {
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    102,
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    67,
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    intra_vlc,
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    intra_run,
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    intra_level,
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};
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/* alternate scan orders used when doing AC prediction */
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UINT8 ff_alternate_horizontal_scan[64] = {
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    0,  1,  2,  3,  8,  9, 16, 17, 
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    10, 11,  4,  5,  6,  7, 15, 14,
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    13, 12, 19, 18, 24, 25, 32, 33, 
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    26, 27, 20, 21, 22, 23, 28, 29,
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    30, 31, 34, 35, 40, 41, 48, 49, 
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    42, 43, 36, 37, 38, 39, 44, 45,
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    46, 47, 50, 51, 56, 57, 58, 59, 
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    52, 53, 54, 55, 60, 61, 62, 63,
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};
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UINT8 ff_alternate_vertical_scan[64] = {
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    0,  8, 16, 24,  1,  9,  2, 10, 
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    17, 25, 32, 40, 48, 56, 57, 49,
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    41, 33, 26, 18,  3, 11,  4, 12, 
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    19, 27, 34, 42, 50, 58, 35, 43,
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    51, 59, 20, 28,  5, 13,  6, 14, 
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    21, 29, 36, 44, 52, 60, 37, 45,
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    53, 61, 22, 30,  7, 15, 23, 31, 
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    38, 46, 54, 62, 39, 47, 55, 63,
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};