From de6d9b6404bfd1c589799142da5a95428f146edd Mon Sep 17 00:00:00 2001 From: Fabrice Bellard Date: Sun, 22 Jul 2001 14:18:56 +0000 Subject: Initial revision Originally committed as revision 5 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/mpeg4data.h | 106 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 106 insertions(+) create mode 100644 libavcodec/mpeg4data.h (limited to 'libavcodec/mpeg4data.h') diff --git a/libavcodec/mpeg4data.h b/libavcodec/mpeg4data.h new file mode 100644 index 0000000000..54b93d97ed --- /dev/null +++ b/libavcodec/mpeg4data.h @@ -0,0 +1,106 @@ + +/* dc encoding for mpeg4 */ +static const UINT8 DCtab_lum[13][2] = +{ + {3,3}, {3,2}, {2,2}, {2,3}, {1,3}, {1,4}, {1,5}, {1,6}, {1,7}, + {1,8}, {1,9}, {1,10}, {1,11}, +}; + +static const UINT8 DCtab_chrom[13][2] = +{ + {3,2}, {2,2}, {1,2}, {1,3}, {1,4}, {1,5}, {1,6}, {1,7}, {1,8}, + {1,9}, {1,10}, {1,11}, {1,12}, +}; + +const UINT16 intra_vlc[103][2] = { +{ 0x2, 2 }, +{ 0x6, 3 },{ 0xf, 4 },{ 0xd, 5 },{ 0xc, 5 }, +{ 0x15, 6 },{ 0x13, 6 },{ 0x12, 6 },{ 0x17, 7 }, +{ 0x1f, 8 },{ 0x1e, 8 },{ 0x1d, 8 },{ 0x25, 9 }, +{ 0x24, 9 },{ 0x23, 9 },{ 0x21, 9 },{ 0x21, 10 }, +{ 0x20, 10 },{ 0xf, 10 },{ 0xe, 10 },{ 0x7, 11 }, +{ 0x6, 11 },{ 0x20, 11 },{ 0x21, 11 },{ 0x50, 12 }, +{ 0x51, 12 },{ 0x52, 12 },{ 0xe, 4 },{ 0x14, 6 }, +{ 0x16, 7 },{ 0x1c, 8 },{ 0x20, 9 },{ 0x1f, 9 }, +{ 0xd, 10 },{ 0x22, 11 },{ 0x53, 12 },{ 0x55, 12 }, +{ 0xb, 5 },{ 0x15, 7 },{ 0x1e, 9 },{ 0xc, 10 }, +{ 0x56, 12 },{ 0x11, 6 },{ 0x1b, 8 },{ 0x1d, 9 }, +{ 0xb, 10 },{ 0x10, 6 },{ 0x22, 9 },{ 0xa, 10 }, +{ 0xd, 6 },{ 0x1c, 9 },{ 0x8, 10 },{ 0x12, 7 }, +{ 0x1b, 9 },{ 0x54, 12 },{ 0x14, 7 },{ 0x1a, 9 }, +{ 0x57, 12 },{ 0x19, 8 },{ 0x9, 10 },{ 0x18, 8 }, +{ 0x23, 11 },{ 0x17, 8 },{ 0x19, 9 },{ 0x18, 9 }, +{ 0x7, 10 },{ 0x58, 12 },{ 0x7, 4 },{ 0xc, 6 }, +{ 0x16, 8 },{ 0x17, 9 },{ 0x6, 10 },{ 0x5, 11 }, +{ 0x4, 11 },{ 0x59, 12 },{ 0xf, 6 },{ 0x16, 9 }, +{ 0x5, 10 },{ 0xe, 6 },{ 0x4, 10 },{ 0x11, 7 }, +{ 0x24, 11 },{ 0x10, 7 },{ 0x25, 11 },{ 0x13, 7 }, +{ 0x5a, 12 },{ 0x15, 8 },{ 0x5b, 12 },{ 0x14, 8 }, +{ 0x13, 8 },{ 0x1a, 8 },{ 0x15, 9 },{ 0x14, 9 }, +{ 0x13, 9 },{ 0x12, 9 },{ 0x11, 9 },{ 0x26, 11 }, +{ 0x27, 11 },{ 0x5c, 12 },{ 0x5d, 12 },{ 0x5e, 12 }, +{ 0x5f, 12 },{ 0x3, 7 }, +}; + +const INT8 intra_level[102] = { + 1, 2, 3, 4, 5, 6, 7, 8, + 9, 10, 11, 12, 13, 14, 15, 16, + 17, 18, 19, 20, 21, 22, 23, 24, + 25, 26, 27, 1, 2, 3, 4, 5, + 6, 7, 8, 9, 10, 1, 2, 3, + 4, 5, 1, 2, 3, 4, 1, 2, + 3, 1, 2, 3, 1, 2, 3, 1, + 2, 3, 1, 2, 1, 2, 1, 1, + 1, 1, 1, 1, 2, 3, 4, 5, + 6, 7, 8, 1, 2, 3, 1, 2, + 1, 2, 1, 2, 1, 2, 1, 2, + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, +}; + +const INT8 intra_run[102] = { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 2, 2, 2, + 2, 2, 3, 3, 3, 3, 4, 4, + 4, 5, 5, 5, 6, 6, 6, 7, + 7, 7, 8, 8, 9, 9, 10, 11, + 12, 13, 14, 0, 0, 0, 0, 0, + 0, 0, 0, 1, 1, 1, 2, 2, + 3, 3, 4, 4, 5, 5, 6, 6, + 7, 8, 9, 10, 11, 12, 13, 14, + 15, 16, 17, 18, 19, 20, +}; + +static RLTable rl_intra = { + 102, + 67, + intra_vlc, + intra_run, + intra_level, +}; + +/* alternate scan orders used when doing AC prediction */ +UINT8 ff_alternate_horizontal_scan[64] = { + 0, 1, 2, 3, 8, 9, 16, 17, + 10, 11, 4, 5, 6, 7, 15, 14, + 13, 12, 19, 18, 24, 25, 32, 33, + 26, 27, 20, 21, 22, 23, 28, 29, + 30, 31, 34, 35, 40, 41, 48, 49, + 42, 43, 36, 37, 38, 39, 44, 45, + 46, 47, 50, 51, 56, 57, 58, 59, + 52, 53, 54, 55, 60, 61, 62, 63, +}; + +UINT8 ff_alternate_vertical_scan[64] = { + 0, 8, 16, 24, 1, 9, 2, 10, + 17, 25, 32, 40, 48, 56, 57, 49, + 41, 33, 26, 18, 3, 11, 4, 12, + 19, 27, 34, 42, 50, 58, 35, 43, + 51, 59, 20, 28, 5, 13, 6, 14, + 21, 29, 36, 44, 52, 60, 37, 45, + 53, 61, 22, 30, 7, 15, 23, 31, + 38, 46, 54, 62, 39, 47, 55, 63, +}; -- cgit v1.2.3