Chiebot-Mirror
/
FFmpeg
mirror of https://github.com/FFmpeg/FFmpeg.git
8
0
Fork 0
Code Issues Projects Releases Wiki Activity

Fixes:

Browse Source 
- i/p/b_decode_mbs functions now checks the proper values (from
bitplane). I didn't find it very clear, but it seems "raw" = "to read at
the MB layer". I used a structure, but we could spare that indirection and
add a flag in the VC9Context for each array.
- Properly decode (or so I think) the CBPCY (as it is predicted)
- many more things
patch by anonymous

Originally committed as revision 3882 to svn://svn.ffmpeg.org/ffmpeg/trunk
pull/126/head
anonymous 20 years ago committed by Michael Niedermayer
parent b299f0d907
commit e5540b3fd3
2 changed files with 561 additions and 268 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 685
      libavcodec/vc9.c
  2. 70
      libavcodec/vc9data.h

685
libavcodec/vc9.c
View File

File diff suppressed because it is too large Load Diff

70
libavcodec/vc9data.h
Unescape View File

@ -240,7 +240,7 @@ static const uint8_t vc9_cbpcy_p_bits[4][64] = {
}
};
/* MacroBlock Transform Type
/* MacroBlock Transform Type: 7.1.3.11, p89
* 8x8:B
* 8x4:B:btm 8x4:B:top 8x4:B:both,
* 4x8:B:right 4x8:B:left 4x8:B:both
@ -272,7 +272,7 @@ static const uint16_t vc9_ttmb_codes[3][16] = {
0x0000, 0x000E, 0x0005,
0x0002, 0x0003, 0x0003,
0x000F, 0x0002,
0x0081, 0x0011, 0x0009,
0x0081, 0x0021, 0x0009,
0x0101, 0x0041, 0x0011,
0x0100
}
@ -302,8 +302,8 @@ static const uint8_t vc9_ttmb_bits[3][16] = {
3, 4, 5,
3, 3, 4,
4, 2,
9, 7, 6,
10, 9, 7,
10, 8, 6,
11, 9, 7,
11
}
};
@ -392,7 +392,7 @@ static const uint8_t vc9_mv_diff_bits[4][73] = {
}
};
/* DC luma differentials low+hi-mo, p217 */
/* DC differentials low+hi-mo, p217 */
//same as msmpeg4 table0/1_dc_lum
static const uint32_t vc9_luma_dc_codes[2][120] = {
{
@ -442,6 +442,7 @@ static const uint8_t vc9_luma_dc_bits[2][120] = {
24, 24, 24, 24, 24, 24, 24, 24 /* lowmo, 120 values */
},
{
2, 2, 3, 4, 4, 5, 5, 5, 6, 6, 6, 6, 6, 7, 7, 7,
7, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10, 10,
10, 10, 11, 11, 11, 11, 12, 12, 12, 12, 13, 13, 13, 13, 14, 14,
@ -453,6 +454,63 @@ static const uint8_t vc9_luma_dc_bits[2][120] = {
}
};
/* DC chroma differentials low+hi-mo */
static const uint32_t vc9_chroma_dc_codes[2][120] = {
{
0, 1, 5, 9, 13, 17, 29, 31,
33, 49, 56, 51, 57, 61, 97, 121,
128, 200, 202, 240, 129, 192, 201, 263,
262, 406, 387, 483, 482, 522, 523, 1545,
1042, 1043, 1547, 1041, 1546, 1631, 1040, 1629,
1630, 3256, 3088, 3257, 6179, 12357, 24713, 49424,
3163208, 3163209, 3163210, 3163211, 3163212, 3163213, 3163214, 3163215,
3163216, 3163217, 3163218, 3163219, 3163220, 3163221, 3163222, 3163223,
3163224, 3163225, 3163226, 3163227, 3163228, 3163229, 3163230, 3163231,
3163232, 3163233, 3163234, 3163235, 3163236, 3163237, 3163238, 3163239,
3163240, 3163241, 3163242, 3163243, 3163244, 3163245, 3163248, 3163231,
3163248, 3163249, 3163250, 3163251, 3163252, 3163253, 3163254, 3163255,
3163256, 3163257, 3163258, 3163259, 3163260, 3163261, 3163262, 3163263,
6326400, 6326401, 6326402, 6326403, 6326404, 6326405, 6326406, 6326407,
6326408, 6326409, 6326410, 6326411, 6326412, 6326413, 6326414, 6326415
},
{
0, 1, 4, 7, 11, 13, 21, 40,
48, 50, 82, 98, 102, 166, 198, 207,
335, 398, 412, 669, 826, 1336, 1596, 1598,
1599, 1654, 2675, 3194, 3311, 5349, 6621, 10696,
10697, 25565, 13240, 13241, 51126, 25560, 25567, 51123,
51124, 51125, 25566, 51127, 51128, 51129, 102245, 204488,
13087304,13087305,13087306,13087307,13087308,13087309,13087310,13087311,
13087312,13087313,13087314,13087315,13087316,13087317,13087318,13087319,
13087320,13087321,13087322,13087323,13087324,13087325,13087326,13087327,
13087328,13087329,13087330,13087331,13087332,13087333,13087334,13087335,
13087336,13087337,13087338,13087339,13087340,13087341,13087342,13087343,
13087344,13087345,13087346,13087347,13087348,13087349,13087350,13087351,
13087352,13087353,13087354,13087355,13087356,13087357,13087358,13087359,
26174592,26174593,26174594,26174595,26174596,26174597,26174598,26174599,
26174600,26174601,26174602,26174603,26174604,26174605,26174606,26174607
}
};
static const uint8_t vc9_chroma_dc_bits[2][120] = {
{
2, 2, 3, 4, 4, 5, 5, 5, 6, 6, 6, 6, 6, 6, 7, 7,
8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10, 10, 11,
11, 11, 11, 11, 12, 12, 12, 13, 14, 15, 16, 22, 22, 22, 22, 22,
22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22,
22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22,
22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23,
23, 23, 23, 23, 23, 23, 23, 23 /* lowmo, 120 values */
},
{
2, 2, 3, 3, 4, 4, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8,
9, 9, 9, 10, 10, 11, 11, 11, 11, 11, 12, 12, 12, 13, 13, 14,
14, 15, 14, 14, 16, 15, 15, 16, 16, 16, 15, 16, 16, 16, 17, 18,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25,
25, 25, 25, 25, 25, 25, 25, 25 /* himo, 120 values */
},
};
/* Scantables/ZZ scan are at 11.9 (p262) and 8.1.1.12 (p10) */
#endif /* VC9DATA_H */

Write Preview
Loading…
Cancel
Save