mirror of
https://github.com/xenia-project/FFmpeg.git
synced 2024-12-02 00:26:36 +00:00
ccff9da62a
-corrected wrong value in mv data -set correct mb_type after adjusting index -don't use H263 loop filter when the loop filter flag is set but when using the H261 encoder -use the same unquantizer as H263 (which is optimized btw) -removed unused members in H261Context patch by (Maarten Daniels <maarten.daniels >at< luc >dot< ac >dot< be>) regression test checksum update by me Originally committed as revision 3669 to svn://svn.ffmpeg.org/ffmpeg/trunk
137 lines
4.2 KiB
C
137 lines
4.2 KiB
C
/**
|
|
* @file h261data.h
|
|
* H.261 tables.
|
|
*/
|
|
#define MB_TYPE_H261_FIL 0x800000
|
|
|
|
// H.261 VLC table for macroblock addressing
|
|
const uint8_t h261_mba_code[35] = {
|
|
1, 3, 2, 3,
|
|
2, 3, 2, 7,
|
|
6, 11, 10, 9,
|
|
8, 7, 6, 23,
|
|
22, 21, 20, 19,
|
|
18, 35, 34, 33,
|
|
32, 31, 30, 29,
|
|
28, 27, 26, 25,
|
|
24,
|
|
15, //(MBA stuffing)
|
|
1 //(start code)
|
|
};
|
|
|
|
const uint8_t h261_mba_bits[35] = {
|
|
1, 3, 3, 4,
|
|
4, 5, 5, 7,
|
|
7, 8, 8, 8,
|
|
8, 8, 8, 10,
|
|
10, 10, 10, 10,
|
|
10, 11, 11, 11,
|
|
11, 11, 11, 11,
|
|
11, 11, 11, 11,
|
|
11,
|
|
11, //(MBA stuffing)
|
|
16 //(start code)
|
|
};
|
|
|
|
//H.261 VLC table for macroblock type
|
|
const uint8_t h261_mtype_code[10] = {
|
|
1, 1, 1, 1,
|
|
1, 1, 1, 1,
|
|
1, 1
|
|
};
|
|
|
|
const uint8_t h261_mtype_bits[10] = {
|
|
4, 7, 1, 5,
|
|
9, 8, 10, 3,
|
|
2, 6
|
|
};
|
|
|
|
static const int h261_mtype_map[10]= {
|
|
MB_TYPE_INTRA4x4,
|
|
MB_TYPE_INTRA4x4 | MB_TYPE_QUANT,
|
|
MB_TYPE_CBP,
|
|
MB_TYPE_QUANT | MB_TYPE_CBP,
|
|
MB_TYPE_16x16,
|
|
MB_TYPE_CBP | MB_TYPE_16x16,
|
|
MB_TYPE_QUANT | MB_TYPE_CBP | MB_TYPE_16x16,
|
|
MB_TYPE_16x16 | MB_TYPE_H261_FIL,
|
|
MB_TYPE_CBP | MB_TYPE_16x16 | MB_TYPE_H261_FIL,
|
|
MB_TYPE_QUANT | MB_TYPE_CBP | MB_TYPE_16x16 | MB_TYPE_H261_FIL
|
|
};
|
|
|
|
//H.261 VLC table for motion vectors
|
|
const uint8_t h261_mv_tab[17][2] = {
|
|
{1,1}, {1,2}, {1,3}, {1,4}, {3,6}, {5,7}, {4,7}, {3,7},
|
|
{11,9}, {10,9}, {9,9}, {17,10}, {16,10}, {15,10}, {14,10}, {13,10}, {12,10}
|
|
};
|
|
|
|
static const int mvmap[17] =
|
|
{
|
|
0, -1, -2, -3, -4, -5, -6, -7, -8, -9, -10, -11, -12, -13, -14, -15, -16
|
|
};
|
|
|
|
//H.261 VLC table for coded block pattern
|
|
const uint8_t h261_cbp_tab[63][2] =
|
|
{
|
|
{11,5}, {9,5}, {13,6}, {13,4}, {23,7}, {19,7}, {31,8}, {12,4},
|
|
{22,7}, {18,7}, {30,8}, {19,5}, {27,8}, {23,8}, {19,8}, {11,4},
|
|
{21,7}, {17,7}, {29,8}, {17,5}, {25,8}, {21,8}, {17,8}, {15,6},
|
|
{15,8}, {13,8}, {3,9}, {15,5}, {11,8}, {7,8}, {7,9}, {10,4},
|
|
{20,7}, {16,7}, {28,8}, {14,6}, {14,8}, {12,8}, {2,9}, {16,5},
|
|
{24,8}, {20,8}, {16,8}, {14,5}, {10,8}, {6,8}, {6,9}, {18,5},
|
|
{26,8}, {22,8}, {18,8}, {13,5}, {9,8}, {5,8}, {5,9}, {12,5},
|
|
{8,8}, {4,8}, {4,9}, {7,3}, {10,5}, {8,5}, {12,6}
|
|
};
|
|
|
|
//H.261 VLC table for transform coefficients
|
|
const uint16_t h261_tcoeff_vlc[65][2] = {
|
|
{ 0x2, 2 }, { 0x3, 2 },{ 0x4, 4 },{ 0x5, 5 },
|
|
{ 0x6, 7 },{ 0x26, 8 },{ 0x21, 8 },{ 0xa, 10 },
|
|
{ 0x1d, 12 },{ 0x18, 12 },{ 0x13, 12 },{ 0x10 , 12 },
|
|
{ 0x1a, 13},{ 0x19, 13 }, { 0x18, 13 }, { 0x17, 13 },
|
|
{ 0x3, 3 }, { 0x6, 6 }, { 0x25 , 8 }, { 0xc, 10 },
|
|
{ 0x1b, 12 }, { 0x16, 13 }, { 0x15, 13 }, { 0x5, 4},
|
|
{ 0x4, 7}, { 0xb, 10 }, { 0x14, 12 }, { 0x14, 13 },
|
|
{ 0x7, 5 }, { 0x24, 8 }, { 0x1c, 12 }, { 0x13, 13 },
|
|
{ 0x6, 5 }, { 0xf, 10 }, { 0x12, 12}, { 0x7, 6},
|
|
{ 0x9 , 10 }, { 0x12, 13 }, { 0x5, 6 }, { 0x1e, 12 },
|
|
{ 0x4, 6 }, { 0x15, 12 }, { 0x7, 7 }, { 0x11, 12},
|
|
{ 0x5, 7 }, { 0x11, 13 }, { 0x27, 8 }, { 0x10, 13 },
|
|
{ 0x23, 8 }, { 0x22, 8 }, { 0x20, 8 }, { 0xe , 10 },
|
|
{ 0xd, 10 }, { 0x8, 10 },{ 0x1f, 12 }, { 0x1a, 12 },
|
|
{ 0x19, 12 }, { 0x17, 12 }, { 0x16, 12}, { 0x1f, 13},
|
|
{ 0x1e, 13 }, { 0x1d, 13 }, { 0x1c, 13}, { 0x1b, 13},
|
|
{ 0x1, 6 } //escape
|
|
};
|
|
|
|
const int8_t h261_tcoeff_level[64] = {
|
|
0, 1, 2, 3, 4, 5, 6, 7,
|
|
8, 9, 10, 11, 12, 13, 14, 15,
|
|
1, 2, 3, 4, 5, 6, 7, 1,
|
|
2, 3, 4, 5, 1, 2, 3, 4,
|
|
1, 2, 3, 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, 1, 1
|
|
};
|
|
|
|
const int8_t h261_tcoeff_run[64] = {
|
|
0,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 1,
|
|
1, 1, 1, 1, 1, 1, 2, 2,
|
|
2, 2, 2, 3, 3, 3, 3, 4,
|
|
4, 4, 5, 5, 5, 6, 6, 7,
|
|
7, 8, 8, 9, 9, 10, 10, 11,
|
|
12, 13, 14, 15, 16, 17, 18, 19,
|
|
20, 21, 22, 23, 24, 25, 26
|
|
};
|
|
|
|
static RLTable h261_rl_tcoeff = {
|
|
64,
|
|
64,
|
|
h261_tcoeff_vlc,
|
|
h261_tcoeff_run,
|
|
h261_tcoeff_level,
|
|
};
|