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
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
/*
* VC-1 and WMV3 decoder
* copyright (c) 2006 Konstantin Shishkov
* (c) 2005 anonymous, Alex Beregszaszi, Michael Niedermayer
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file vc1data.h
* VC-1 tables.
*/
#ifndef FFMPEG_VC1DATA_H
#define FFMPEG_VC1DATA_H
#include <stdint.h>
#include "bitstream.h"
#include "rational.h"
/** Table for conversion between TTBLK and TTMB */
extern const int ff_vc1_ttblk_to_tt[3][8];
extern const int ff_vc1_ttfrm_to_tt[4];
/** MV P mode - the 5th element is only used for mode 1 */
extern const uint8_t ff_vc1_mv_pmode_table[2][5];
extern const uint8_t ff_vc1_mv_pmode_table2[2][4];
extern const int ff_vc1_fps_nr[5], ff_vc1_fps_dr[2];
extern const uint8_t ff_vc1_pquant_table[3][32];
/** @name VC-1 VLC tables and defines
* @todo TODO move this into the context
*/
//@{
#define VC1_BFRACTION_VLC_BITS 7
extern VLC ff_vc1_bfraction_vlc;
#define VC1_IMODE_VLC_BITS 4
extern VLC ff_vc1_imode_vlc;
#define VC1_NORM2_VLC_BITS 3
extern VLC ff_vc1_norm2_vlc;
#define VC1_NORM6_VLC_BITS 9
extern VLC ff_vc1_norm6_vlc;
/* Could be optimized, one table only needs 8 bits */
#define VC1_TTMB_VLC_BITS 9 //12
extern VLC ff_vc1_ttmb_vlc[3];
#define VC1_MV_DIFF_VLC_BITS 9 //15
extern VLC ff_vc1_mv_diff_vlc[4];
#define VC1_CBPCY_P_VLC_BITS 9 //14
extern VLC ff_vc1_cbpcy_p_vlc[4];
#define VC1_4MV_BLOCK_PATTERN_VLC_BITS 6
extern VLC ff_vc1_4mv_block_pattern_vlc[4];
#define VC1_TTBLK_VLC_BITS 5
extern VLC ff_vc1_ttblk_vlc[3];
#define VC1_SUBBLKPAT_VLC_BITS 6
extern VLC ff_vc1_subblkpat_vlc[3];
extern VLC ff_vc1_ac_coeff_table[8];
//@}
#if 0 //original bfraction from vc9data.h, not conforming to standard
/* Denominator used for ff_vc1_bfraction_lut */
#define B_FRACTION_DEN 840
/* bfraction is fractional, we scale to the GCD 3*5*7*8 = 840 */
extern const int16_t ff_vc1_bfraction_lut[23];
#else
/* Denominator used for ff_vc1_bfraction_lut */
#define B_FRACTION_DEN 256
/* pre-computed scales for all bfractions and base=256 */
extern const int16_t ff_vc1_bfraction_lut[23];
#endif
extern const uint8_t ff_vc1_bfraction_bits[23];
extern const uint8_t ff_vc1_bfraction_codes[23];
//Same as H.264
extern const AVRational ff_vc1_pixel_aspect[16];
/* BitPlane IMODE - such a small table... */
extern const uint8_t ff_vc1_imode_codes[7];
extern const uint8_t ff_vc1_imode_bits[7];
/* Normal-2 imode */
extern const uint8_t ff_vc1_norm2_codes[4];
extern const uint8_t ff_vc1_norm2_bits[4];
extern const uint16_t ff_vc1_norm6_codes[64];
extern const uint8_t ff_vc1_norm6_bits[64];
/* Normal-6 imode */
extern const uint8_t ff_vc1_norm6_spec[64][5];
/* 4MV Block pattern VLC tables */
extern const uint8_t ff_vc1_4mv_block_pattern_codes[4][16];
extern const uint8_t ff_vc1_4mv_block_pattern_bits[4][16];
extern const uint8_t wmv3_dc_scale_table[32];
/* P-Picture CBPCY VLC tables */
extern const uint16_t ff_vc1_cbpcy_p_codes[4][64];
extern const uint8_t ff_vc1_cbpcy_p_bits[4][64];
/* 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
* 4x4:B 8x8:MB
* 8x4:MB:btm 8x4:MB:top 8x4,MB,both
* 4x8,MB,right 4x8,MB,left
* 4x4,MB */
extern const uint16_t ff_vc1_ttmb_codes[3][16];
extern const uint8_t ff_vc1_ttmb_bits[3][16];
/* TTBLK (Transform Type per Block) tables */
extern const uint8_t ff_vc1_ttblk_codes[3][8];
extern const uint8_t ff_vc1_ttblk_bits[3][8];
/* SUBBLKPAT tables, p93-94, reordered */
extern const uint8_t ff_vc1_subblkpat_codes[3][15];
extern const uint8_t ff_vc1_subblkpat_bits[3][15];
/* MV differential tables, p265 */
extern const uint16_t ff_vc1_mv_diff_codes[4][73];
extern const uint8_t ff_vc1_mv_diff_bits[4][73];
/* DC differentials low+hi-mo, p217 are the same as in msmpeg4data .h */
/* Scantables/ZZ scan are at 11.9 (p262) and 8.1.1.12 (p10) */
extern const int8_t ff_vc1_normal_zz[64];
extern const int8_t ff_vc1_horizontal_zz [64];
extern const int8_t ff_vc1_vertical_zz [64];
extern const int8_t ff_vc1_simple_progressive_8x8_zz [64];
extern const int8_t ff_vc1_simple_progressive_8x4_zz [32];
extern const int8_t ff_vc1_simple_progressive_4x8_zz [32];
extern const int8_t ff_vc1_simple_progressive_4x4_zz [16];
extern const int8_t ff_vc1_adv_progressive_8x4_zz [32];
extern const int8_t ff_vc1_adv_progressive_4x8_zz [32];
extern const int8_t ff_vc1_adv_interlaced_8x8_zz [64];
extern const int8_t ff_vc1_adv_interlaced_8x4_zz [32];
extern const int8_t ff_vc1_adv_interlaced_4x8_zz [32];
extern const int8_t ff_vc1_adv_interlaced_4x4_zz [16];
/* DQScale as specified in 8.1.3.9 - almost identical to 0x40000/i */
extern const int32_t ff_vc1_dqscale[63];
#endif /* FFMPEG_VC1DATA_H */
|
