2 * VC-1 and WMV3 decoder
3 * copyright (c) 2006 Konstantin Shishkov
4 * (c) 2005 anonymous, Alex Beregszaszi, Michael Niedermayer
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
28 #ifndef AVCODEC_VC1DATA_H
29 #define AVCODEC_VC1DATA_H
32 #include "libavutil/rational.h"
35 /** Table for conversion between TTBLK and TTMB */
36 extern const int ff_vc1_ttblk_to_tt
[3][8];
38 extern const int ff_vc1_ttfrm_to_tt
[4];
40 /** MV P mode - the 5th element is only used for mode 1 */
41 extern const uint8_t ff_vc1_mv_pmode_table
[2][5];
42 extern const uint8_t ff_vc1_mv_pmode_table2
[2][4];
44 extern const int ff_vc1_fps_nr
[7], ff_vc1_fps_dr
[2];
45 extern const uint8_t ff_vc1_pquant_table
[3][32];
47 /* MBMODE table for interlaced frame P-picture */
48 extern const uint8_t ff_vc1_mbmode_intfrp
[2][15][4];
50 /** @name VC-1 VLC tables and defines
51 * @todo TODO move this into the context
54 #define VC1_BFRACTION_VLC_BITS 7
55 extern VLC ff_vc1_bfraction_vlc
;
56 #define VC1_IMODE_VLC_BITS 4
57 extern VLC ff_vc1_imode_vlc
;
58 #define VC1_NORM2_VLC_BITS 3
59 extern VLC ff_vc1_norm2_vlc
;
60 #define VC1_NORM6_VLC_BITS 9
61 extern VLC ff_vc1_norm6_vlc
;
62 /* Could be optimized, one table only needs 8 bits */
63 #define VC1_TTMB_VLC_BITS 9 //12
64 extern VLC ff_vc1_ttmb_vlc
[3];
65 #define VC1_MV_DIFF_VLC_BITS 9 //15
66 extern VLC ff_vc1_mv_diff_vlc
[4];
67 #define VC1_CBPCY_P_VLC_BITS 9 //14
68 extern VLC ff_vc1_cbpcy_p_vlc
[4];
69 #define VC1_ICBPCY_VLC_BITS 9
70 extern VLC ff_vc1_icbpcy_vlc
[8];
71 #define VC1_4MV_BLOCK_PATTERN_VLC_BITS 6
72 extern VLC ff_vc1_4mv_block_pattern_vlc
[4];
73 #define VC1_2MV_BLOCK_PATTERN_VLC_BITS 3
74 extern VLC ff_vc1_2mv_block_pattern_vlc
[4];
75 #define VC1_TTBLK_VLC_BITS 5
76 extern VLC ff_vc1_ttblk_vlc
[3];
77 #define VC1_SUBBLKPAT_VLC_BITS 6
78 extern VLC ff_vc1_subblkpat_vlc
[3];
79 #define VC1_INTFR_4MV_MBMODE_VLC_BITS 9
80 extern VLC ff_vc1_intfr_4mv_mbmode_vlc
[4];
81 #define VC1_INTFR_NON4MV_MBMODE_VLC_BITS 6
82 extern VLC ff_vc1_intfr_non4mv_mbmode_vlc
[4];
83 #define VC1_IF_MMV_MBMODE_VLC_BITS 5
84 extern VLC ff_vc1_if_mmv_mbmode_vlc
[8];
85 #define VC1_IF_1MV_MBMODE_VLC_BITS 5
86 extern VLC ff_vc1_if_1mv_mbmode_vlc
[8];
87 #define VC1_1REF_MVDATA_VLC_BITS 9
88 extern VLC ff_vc1_1ref_mvdata_vlc
[4];
89 #define VC1_2REF_MVDATA_VLC_BITS 9
90 extern VLC ff_vc1_2ref_mvdata_vlc
[8];
92 extern VLC ff_vc1_ac_coeff_table
[8];
94 #define VC1_IF_MBMODE_VLC_BITS 5
97 #define B_FRACTION_DEN 256
99 /* pre-computed scales for all bfractions and base=256 */
100 extern const int16_t ff_vc1_bfraction_lut
[23];
101 extern const uint8_t ff_vc1_bfraction_bits
[23];
102 extern const uint8_t ff_vc1_bfraction_codes
[23];
105 extern const AVRational ff_vc1_pixel_aspect
[16];
107 /* BitPlane IMODE - such a small table... */
108 extern const uint8_t ff_vc1_imode_codes
[7];
109 extern const uint8_t ff_vc1_imode_bits
[7];
112 extern const uint8_t ff_vc1_norm2_codes
[4];
113 extern const uint8_t ff_vc1_norm2_bits
[4];
114 extern const uint16_t ff_vc1_norm6_codes
[64];
115 extern const uint8_t ff_vc1_norm6_bits
[64];
117 extern const uint8_t ff_vc1_norm6_spec
[64][5];
119 /* 4MV Block pattern VLC tables */
120 extern const uint8_t ff_vc1_4mv_block_pattern_codes
[4][16];
121 extern const uint8_t ff_vc1_4mv_block_pattern_bits
[4][16];
123 /* 2MV Block pattern VLC tables */
124 extern const uint8_t ff_vc1_2mv_block_pattern_codes
[4][4];
125 extern const uint8_t ff_vc1_2mv_block_pattern_bits
[4][4];
127 extern const uint8_t ff_wmv3_dc_scale_table
[32];
129 /* P-Picture CBPCY VLC tables */
130 extern const uint16_t ff_vc1_cbpcy_p_codes
[4][64];
131 extern const uint8_t ff_vc1_cbpcy_p_bits
[4][64];
133 /* Interlaced CBPCY VLC tables (Table 124 - Table 131) */
134 extern const uint16_t ff_vc1_icbpcy_p_codes
[8][63];
135 extern const uint8_t ff_vc1_icbpcy_p_bits
[8][63];
137 /* MacroBlock Transform Type: 7.1.3.11, p89
139 * 8x4:B:btm 8x4:B:top 8x4:B:both,
140 * 4x8:B:right 4x8:B:left 4x8:B:both
142 * 8x4:MB:btm 8x4:MB:top 8x4,MB,both
143 * 4x8,MB,right 4x8,MB,left
145 extern const uint16_t ff_vc1_ttmb_codes
[3][16];
147 extern const uint8_t ff_vc1_ttmb_bits
[3][16];
149 /* TTBLK (Transform Type per Block) tables */
150 extern const uint8_t ff_vc1_ttblk_codes
[3][8];
151 extern const uint8_t ff_vc1_ttblk_bits
[3][8];
153 /* SUBBLKPAT tables, p93-94, reordered */
154 extern const uint8_t ff_vc1_subblkpat_codes
[3][15];
155 extern const uint8_t ff_vc1_subblkpat_bits
[3][15];
157 /* MV differential tables, p265 */
158 extern const uint16_t ff_vc1_mv_diff_codes
[4][73];
159 extern const uint8_t ff_vc1_mv_diff_bits
[4][73];
161 /* Interlaced frame picture MBMODE VLC tables (p. 246, p. 360) */
162 extern const uint16_t ff_vc1_intfr_4mv_mbmode_codes
[4][15];
163 extern const uint8_t ff_vc1_intfr_4mv_mbmode_bits
[4][15];
164 extern const uint8_t ff_vc1_intfr_non4mv_mbmode_codes
[4][9];
165 extern const uint8_t ff_vc1_intfr_non4mv_mbmode_bits
[4][9];
167 /* Interlaced field picture MBMODE VLC tables (p. 356 - 11.4.1, 11.4.2) */
168 extern const uint8_t ff_vc1_if_mmv_mbmode_codes
[8][8];
169 extern const uint8_t ff_vc1_if_mmv_mbmode_bits
[8][8];
170 extern const uint8_t ff_vc1_if_1mv_mbmode_codes
[8][6];
171 extern const uint8_t ff_vc1_if_1mv_mbmode_bits
[8][6];
173 /* Interlaced frame/field picture MVDATA VLC tables */
174 /* 1-reference tables */
175 extern const uint32_t ff_vc1_1ref_mvdata_codes
[4][72];
176 extern const uint8_t ff_vc1_1ref_mvdata_bits
[4][72];
177 /* 2-reference tables */
178 extern const uint32_t ff_vc1_2ref_mvdata_codes
[8][126];
179 extern const uint8_t ff_vc1_2ref_mvdata_bits
[8][126];
181 /* DC differentials low+hi-mo, p217 are the same as in msmpeg4data .h */
183 /* Scantables/ZZ scan are at 11.9 (p262) and 8.1.1.12 (p10) */
184 extern const uint8_t ff_vc1_simple_progressive_4x4_zz
[16];
185 extern const uint8_t ff_vc1_adv_progressive_8x4_zz
[32];
186 extern const uint8_t ff_vc1_adv_progressive_4x8_zz
[32];
187 extern const uint8_t ff_vc1_adv_interlaced_8x8_zz
[64];
188 extern const uint8_t ff_vc1_adv_interlaced_8x4_zz
[32];
189 extern const uint8_t ff_vc1_adv_interlaced_4x8_zz
[32];
190 extern const uint8_t ff_vc1_adv_interlaced_4x4_zz
[16];
191 extern const uint8_t ff_vc1_intra_horz_8x8_zz
[64];
192 extern const uint8_t ff_vc1_intra_vert_8x8_zz
[64];
194 /* DQScale as specified in 8.1.3.9 - almost identical to 0x40000/i */
195 extern const int32_t ff_vc1_dqscale
[63];
197 /* P Interlaced field picture MV predictor scaling values (Table 114) */
198 extern const uint16_t ff_vc1_field_mvpred_scales
[2][7][4];
199 /* B Interlaced field picture backward MV predictor scaling values for first field (Table 115) */
200 extern const uint16_t ff_vc1_b_field_mvpred_scales
[7][4];
204 extern const int ff_vc1_ac_sizes
[AC_MODES
];
206 #endif /* AVCODEC_VC1DATA_H */