FFmpeg
vc1data.c
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1 /*
2  * VC-1 and WMV3 decoder
3  * copyright (c) 2011 Mashiat Sarker Shakkhar
4  * copyright (c) 2006 Konstantin Shishkov
5  * (c) 2005 anonymous, Alex Beregszaszi, Michael Niedermayer
6  *
7  * This file is part of FFmpeg.
8  *
9  * FFmpeg is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * FFmpeg is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with FFmpeg; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22  */
23 
24 /**
25  * @file
26  * VC-1 tables.
27  */
28 
29 #include "vc1.h"
30 #include "vc1data.h"
31 #include "vlc.h"
32 
33 /** Table for conversion between TTBLK and TTMB */
34 const int ff_vc1_ttblk_to_tt[3][8] = {
38 };
39 
41 
42 /** MV P mode - the 5th element is only used for mode 1 */
43 const uint8_t ff_vc1_mv_pmode_table[2][5] = {
46 };
47 const uint8_t ff_vc1_mv_pmode_table2[2][4] = {
50 };
51 
52 /* MBMODE table for interlaced frame P-picture */
53 const uint8_t ff_vc1_mbmode_intfrp[2][15][4] = {
54  { /* 1: 4-MV, 0: non-4-MV */
55  /* Type, FIELDTX, 1-MV Differential present, Residuals (CBP) present */
56  /* Table 164 - Table 167 */
57  { MV_PMODE_INTFR_1MV , 0, 1, 1 },
58  { MV_PMODE_INTFR_1MV , 1, 1, 1 },
59  { MV_PMODE_INTFR_1MV , 0, 1, 0 },
60  { MV_PMODE_INTFR_1MV , 0, 0, 1 },
61  { MV_PMODE_INTFR_1MV , 1, 0, 1 },
62  { MV_PMODE_INTFR_2MV_FIELD, 0, 0, 1 },
63  { MV_PMODE_INTFR_2MV_FIELD, 1, 0, 1 },
64  { MV_PMODE_INTFR_2MV_FIELD, 1, 0, 0 },
65  { MV_PMODE_INTFR_INTRA , 0, 0, 0 }
66  },
67  {
68  /* Table 160 - Table 163 */
69  { MV_PMODE_INTFR_1MV , 0, 1, 1 },
70  { MV_PMODE_INTFR_1MV , 1, 1, 1 },
71  { MV_PMODE_INTFR_1MV , 0, 1, 0 },
72  { MV_PMODE_INTFR_1MV , 0, 0, 1 },
73  { MV_PMODE_INTFR_1MV , 1, 0, 1 },
74  { MV_PMODE_INTFR_2MV_FIELD, 0, 0, 1 },
75  { MV_PMODE_INTFR_2MV_FIELD, 1, 0, 1 },
76  { MV_PMODE_INTFR_2MV_FIELD, 1, 0, 0 },
77  { MV_PMODE_INTFR_4MV , 0, 0, 1 },
78  { MV_PMODE_INTFR_4MV , 1, 0, 1 },
79  { MV_PMODE_INTFR_4MV , 0, 0, 0 },
80  { MV_PMODE_INTFR_4MV_FIELD, 0, 0, 1 },
81  { MV_PMODE_INTFR_4MV_FIELD, 1, 0, 1 },
82  { MV_PMODE_INTFR_4MV_FIELD, 1, 0, 0 },
83  { MV_PMODE_INTFR_INTRA , 0, 0, 0 }
84  }
85 };
86 
87 const int ff_vc1_fps_nr[7] = { 24, 25, 30, 50, 60, 48, 72 },
88  ff_vc1_fps_dr[2] = { 1000, 1001 };
89 const uint8_t ff_vc1_pquant_table[3][32] = {
90  /* Implicit quantizer */
91  { 0, 1, 2, 3, 4, 5, 6, 7, 8, 6, 7, 8, 9, 10, 11, 12,
92  13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 27, 29, 31 },
93  /* Explicit quantizer, pquantizer uniform */
94  { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
95  16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 },
96  /* Explicit quantizer, pquantizer non-uniform */
97  { 0, 1, 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13,
98  14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 29, 31 }
99 };
100 
101 /** @name VC-1 VLC tables
102  * @todo TODO move this into the context
103  */
104 //@{
108 /* Could be optimized, one table only needs 8 bits */
123 
125 
126 //@}
127 
128 
129 #if B_FRACTION_DEN == 840 // original bfraction from vc9data.h, not conforming to standard
130 /* bfraction is fractional, we scale to the GCD 3*5*7*8 = 840 */
131 const int16_t ff_vc1_bfraction_lut[23] = {
132  420 /*1/2*/, 280 /*1/3*/, 560 /*2/3*/, 210 /*1/4*/,
133  630 /*3/4*/, 168 /*1/5*/, 336 /*2/5*/,
134  504 /*3/5*/, 672 /*4/5*/, 140 /*1/6*/, 700 /*5/6*/,
135  120 /*1/7*/, 240 /*2/7*/, 360 /*3/7*/, 480 /*4/7*/,
136  600 /*5/7*/, 720 /*6/7*/, 105 /*1/8*/, 315 /*3/8*/,
137  525 /*5/8*/, 735 /*7/8*/,
138  -1 /*inv.*/, 0 /*BI fm*/
139 };
140 #else
141 /* pre-computed scales for all bfractions and base=256 */
142 const int16_t ff_vc1_bfraction_lut[23] = {
143  128 /*1/2*/, 85 /*1/3*/, 170 /*2/3*/, 64 /*1/4*/,
144  192 /*3/4*/, 51 /*1/5*/, 102 /*2/5*/,
145  153 /*3/5*/, 204 /*4/5*/, 43 /*1/6*/, 215 /*5/6*/,
146  37 /*1/7*/, 74 /*2/7*/, 111 /*3/7*/, 148 /*4/7*/,
147  185 /*5/7*/, 222 /*6/7*/, 32 /*1/8*/, 96 /*3/8*/,
148  160 /*5/8*/, 224 /*7/8*/,
149  -1 /*inv.*/, 0 /*BI fm*/
150 };
151 #endif
152 
153 //Same as H.264
155  { 0, 1 },
156  { 1, 1 },
157  { 12, 11 },
158  { 10, 11 },
159  { 16, 11 },
160  { 40, 33 },
161  { 24, 11 },
162  { 20, 11 },
163  { 32, 11 },
164  { 80, 33 },
165  { 18, 11 },
166  { 15, 11 },
167  { 64, 33 },
168  { 160, 99 },
169  { 0, 1 },
170  { 0, 1 }
171 };
172 
173 const uint8_t ff_wmv3_dc_scale_table[32] = {
174  0, 2, 4, 8, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13,
175  14, 14, 15, 15, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21
176 };
177 
178 
179 /* DC differentials low+hi-mo, p217 are the same as in msmpeg4data .h */
180 
181 /* Table 232 */
182 const uint8_t ff_vc1_simple_progressive_4x4_zz [16] = {
183  0, 8, 16, 1,
184  9, 24, 17, 2,
185  10, 18, 25, 3,
186  11, 26, 19, 27
187 };
188 
189 const uint8_t ff_vc1_adv_progressive_8x4_zz [32] = { /* Table 233 */
190  0, 8, 1, 16, 2, 9, 10, 3,
191  24, 17, 4, 11, 18, 12, 5, 19,
192  25, 13, 20, 26, 27, 6, 21, 28,
193  14, 22, 29, 7, 30, 15, 23, 31
194 };
195 
196 const uint8_t ff_vc1_adv_progressive_4x8_zz [32] = { /* Table 234 */
197  0, 1, 8, 2,
198  9, 16, 17, 24,
199  10, 32, 25, 18,
200  40, 3, 33, 26,
201  48, 11, 56, 41,
202  34, 49, 57, 42,
203  19, 50, 27, 58,
204  35, 43, 51, 59
205 };
206 
207 const uint8_t ff_vc1_adv_interlaced_8x8_zz [64] = { /* Table 235 */
208  0, 8, 1, 16, 24, 9, 2, 32,
209  40, 48, 56, 17, 10, 3, 25, 18,
210  11, 4, 33, 41, 49, 57, 26, 34,
211  42, 50, 58, 19, 12, 5, 27, 20,
212  13, 6, 35, 28, 21, 14, 7, 15,
213  22, 29, 36, 43, 51, 59, 60, 52,
214  44, 37, 30, 23, 31, 38, 45, 53,
215  61, 62, 54, 46, 39, 47, 55, 63
216 };
217 
218 const uint8_t ff_vc1_adv_interlaced_8x4_zz [32] = { /* Table 236 */
219  0, 8, 16, 24, 1, 9, 2, 17,
220  25, 10, 3, 18, 26, 4, 11, 19,
221  12, 5, 13, 20, 27, 6, 21, 28,
222  14, 22, 29, 7, 30, 15, 23, 31
223 };
224 
225 const uint8_t ff_vc1_adv_interlaced_4x8_zz [32] = { /* Table 237 */
226  0, 1, 2, 8,
227  16, 9, 24, 17,
228  10, 3, 32, 40,
229  48, 56, 25, 18,
230  33, 26, 41, 34,
231  49, 57, 11, 42,
232  19, 50, 27, 58,
233  35, 43, 51, 59
234 };
235 
236 const uint8_t ff_vc1_adv_interlaced_4x4_zz [16] = { /* Table 238 */
237  0, 8, 16, 24,
238  1, 9, 17, 2,
239  25, 10, 18, 3,
240  26, 11, 19, 27
241 };
242 
243 
244 /* DQScale as specified in 8.1.3.9 - almost identical to 0x40000/i */
245 const int32_t ff_vc1_dqscale[63] = {
246  0x40000, 0x20000, 0x15555, 0x10000, 0xCCCD, 0xAAAB, 0x9249, 0x8000,
247  0x71C7, 0x6666, 0x5D17, 0x5555, 0x4EC5, 0x4925, 0x4444, 0x4000,
248  0x3C3C, 0x38E4, 0x35E5, 0x3333, 0x30C3, 0x2E8C, 0x2C86, 0x2AAB,
249  0x28F6, 0x2762, 0x25ED, 0x2492, 0x234F, 0x2222, 0x2108, 0x2000,
250  0x1F08, 0x1E1E, 0x1D42, 0x1C72, 0x1BAD, 0x1AF3, 0x1A42, 0x199A,
251  0x18FA, 0x1862, 0x17D0, 0x1746, 0x16C1, 0x1643, 0x15CA, 0x1555,
252  0x14E6, 0x147B, 0x1414, 0x13B1, 0x1352, 0x12F7, 0x129E, 0x1249,
253  0x11F7, 0x11A8, 0x115B, 0x1111, 0x10C9, 0x1084, 0x1041
254 };
255 
256 /* P Interlaced field picture MV predictor scaling values (Table 114) */
257 const uint16_t ff_vc1_field_mvpred_scales[2][7][4] = {
258 // Refdist:
259 // 0 1 2 3 or greater
260  { // current field is first
261  { 128, 192, 213, 224 }, // SCALEOPP
262  { 512, 341, 307, 293 }, // SCALESAME1
263  { 219, 236, 242, 245 }, // SCALESAME2
264  { 32, 48, 53, 56 }, // SCALEZONE1_X
265  { 8, 12, 13, 14 }, // SCALEZONE1_Y
266  { 37, 20, 14, 11 }, // ZONE1OFFSET_X
267  { 10, 5, 4, 3 } // ZONE1OFFSET_Y
268  },
269  { // current field is second
270  { 128, 64, 43, 32 }, // SCALEOPP
271  { 512, 1024, 1536, 2048 }, // SCALESAME1
272  { 219, 204, 200, 198 }, // SCALESAME2
273  { 32, 16, 11, 8 }, // SCALEZONE1_X
274  { 8, 4, 3, 2 }, // SCALEZONE1_Y
275  { 37, 52, 56, 58 }, // ZONE1OFFSET_X
276  { 10, 13, 14, 15 } // ZONE1OFFSET_Y
277  }
278 };
279 
280 /* B Interlaced field picture backward MV predictor scaling values for first field (Table 115) */
281 const uint16_t ff_vc1_b_field_mvpred_scales[7][4] = {
282  // BRFD:
283  // 0 1 2 3 or greater
284  { 171, 205, 219, 228 }, // SCALESAME
285  { 384, 320, 299, 288 }, // SCALEOPP1
286  { 230, 239, 244, 246 }, // SCALEOPP2
287  { 43, 51, 55, 57 }, // SCALEZONE1_X
288  { 11, 13, 14, 14 }, // SCALEZONE1_Y
289  { 26, 17, 12, 10 }, // ZONE1OFFSET_X
290  { 7, 4, 3, 3 } // ZONE1OFFSET_Y
291 };
ff_vc1_2ref_mvdata_vlc
VLC ff_vc1_2ref_mvdata_vlc[8]
Definition: vc1data.c:122
ff_vc1_ttblk_to_tt
const int ff_vc1_ttblk_to_tt[3][8]
Table for conversion between TTBLK and TTMB.
Definition: vc1data.c:34
vc1.h
TT_8X4_BOTTOM
@ TT_8X4_BOTTOM
Definition: vc1.h:113
TT_8X4_TOP
@ TT_8X4_TOP
Definition: vc1.h:114
ff_vc1_intfr_non4mv_mbmode_vlc
VLC ff_vc1_intfr_non4mv_mbmode_vlc[4]
Definition: vc1data.c:118
MV_PMODE_1MV_HPEL_BILIN
@ MV_PMODE_1MV_HPEL_BILIN
Definition: vc1.h:79
ff_vc1_ttblk_vlc
VLC ff_vc1_ttblk_vlc[3]
Definition: vc1data.c:115
MV_PMODE_INTENSITY_COMP
@ MV_PMODE_INTENSITY_COMP
Definition: vc1.h:83
ff_vc1_adv_interlaced_4x8_zz
const uint8_t ff_vc1_adv_interlaced_4x8_zz[32]
Definition: vc1data.c:225
ff_vc1_pixel_aspect
const AVRational ff_vc1_pixel_aspect[16]
Definition: vc1data.c:154
ff_vc1_mv_pmode_table
const uint8_t ff_vc1_mv_pmode_table[2][5]
MV P mode - the 5th element is only used for mode 1.
Definition: vc1data.c:43
ff_vc1_adv_progressive_4x8_zz
const uint8_t ff_vc1_adv_progressive_4x8_zz[32]
Definition: vc1data.c:196
ff_vc1_cbpcy_p_vlc
VLC ff_vc1_cbpcy_p_vlc[4]
Definition: vc1data.c:111
ff_vc1_4mv_block_pattern_vlc
VLC ff_vc1_4mv_block_pattern_vlc[4]
Definition: vc1data.c:113
MV_PMODE_INTFR_2MV_FIELD
@ MV_PMODE_INTFR_2MV_FIELD
Definition: vc1.h:91
ff_vc1_norm6_vlc
VLC ff_vc1_norm6_vlc
Definition: vc1data.c:107
ff_wmv3_dc_scale_table
const uint8_t ff_wmv3_dc_scale_table[32]
Definition: vc1data.c:173
ff_vc1_b_field_mvpred_scales
const uint16_t ff_vc1_b_field_mvpred_scales[7][4]
Definition: vc1data.c:281
TT_8X4
@ TT_8X4
Definition: vc1.h:115
TT_4X8_LEFT
@ TT_4X8_LEFT
Definition: vc1.h:117
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
ff_vc1_icbpcy_vlc
VLC ff_vc1_icbpcy_vlc[8]
Definition: vc1data.c:112
ff_vc1_norm2_vlc
VLC ff_vc1_norm2_vlc
Definition: vc1data.c:106
ff_vc1_simple_progressive_4x4_zz
const uint8_t ff_vc1_simple_progressive_4x4_zz[16]
Definition: vc1data.c:182
ff_vc1_adv_interlaced_8x8_zz
const uint8_t ff_vc1_adv_interlaced_8x8_zz[64]
Definition: vc1data.c:207
ff_vc1_field_mvpred_scales
const uint16_t ff_vc1_field_mvpred_scales[2][7][4]
Definition: vc1data.c:257
MV_PMODE_INTFR_4MV
@ MV_PMODE_INTFR_4MV
Definition: vc1.h:94
MV_PMODE_MIXED_MV
@ MV_PMODE_MIXED_MV
Definition: vc1.h:82
ff_vc1_ttfrm_to_tt
const int ff_vc1_ttfrm_to_tt[4]
Definition: vc1data.c:40
ff_vc1_imode_vlc
VLC ff_vc1_imode_vlc
Definition: vc1data.c:105
MV_PMODE_1MV_HPEL
@ MV_PMODE_1MV_HPEL
Definition: vc1.h:81
vc1data.h
ff_vc1_adv_interlaced_8x4_zz
const uint8_t ff_vc1_adv_interlaced_8x4_zz[32]
Definition: vc1data.c:218
ff_vc1_ttmb_vlc
VLC ff_vc1_ttmb_vlc[3]
Definition: vc1data.c:109
MV_PMODE_INTFR_INTRA
@ MV_PMODE_INTFR_INTRA
Definition: vc1.h:95
ff_vc1_fps_dr
const int ff_vc1_fps_dr[2]
Definition: vc1data.c:88
MV_PMODE_INTFR_4MV_FIELD
@ MV_PMODE_INTFR_4MV_FIELD
Definition: vc1.h:93
ff_vc1_mbmode_intfrp
const uint8_t ff_vc1_mbmode_intfrp[2][15][4]
Definition: vc1data.c:53
ff_vc1_2mv_block_pattern_vlc
VLC ff_vc1_2mv_block_pattern_vlc[4]
Definition: vc1data.c:114
ff_vc1_if_mmv_mbmode_vlc
VLC ff_vc1_if_mmv_mbmode_vlc[8]
Definition: vc1data.c:119
ff_vc1_ac_coeff_table
VLC ff_vc1_ac_coeff_table[8]
Definition: vc1data.c:124
ff_vc1_adv_progressive_8x4_zz
const uint8_t ff_vc1_adv_progressive_8x4_zz[32]
Definition: vc1data.c:189
ff_vc1_subblkpat_vlc
VLC ff_vc1_subblkpat_vlc[3]
Definition: vc1data.c:116
ff_vc1_adv_interlaced_4x4_zz
const uint8_t ff_vc1_adv_interlaced_4x4_zz[16]
Definition: vc1data.c:236
VLC
Definition: vlc.h:31
ff_vc1_mv_diff_vlc
VLC ff_vc1_mv_diff_vlc[4]
Definition: vc1data.c:110
MV_PMODE_INTFR_1MV
@ MV_PMODE_INTFR_1MV
Definition: vc1.h:90
TT_4X8
@ TT_4X8
Definition: vc1.h:118
ff_vc1_mv_pmode_table2
const uint8_t ff_vc1_mv_pmode_table2[2][4]
Definition: vc1data.c:47
ff_vc1_intfr_4mv_mbmode_vlc
VLC ff_vc1_intfr_4mv_mbmode_vlc[4]
Definition: vc1data.c:117
TT_8X8
@ TT_8X8
Definition: vc1.h:112
vlc.h
TT_4X8_RIGHT
@ TT_4X8_RIGHT
Definition: vc1.h:116
ff_vc1_if_1mv_mbmode_vlc
VLC ff_vc1_if_1mv_mbmode_vlc[8]
Definition: vc1data.c:120
int32_t
int32_t
Definition: audioconvert.c:56
ff_vc1_dqscale
const int32_t ff_vc1_dqscale[63]
Definition: vc1data.c:245
ff_vc1_1ref_mvdata_vlc
VLC ff_vc1_1ref_mvdata_vlc[4]
Definition: vc1data.c:121
ff_vc1_bfraction_lut
const int16_t ff_vc1_bfraction_lut[23]
Definition: vc1data.c:142
MV_PMODE_1MV
@ MV_PMODE_1MV
Definition: vc1.h:80
TT_4X4
@ TT_4X4
Definition: vc1.h:119
ff_vc1_fps_nr
const int ff_vc1_fps_nr[7]
Definition: vc1data.c:87
ff_vc1_pquant_table
const uint8_t ff_vc1_pquant_table[3][32]
Definition: vc1data.c:89