2 * H.26L/H.264/AVC/JVT/14496-10/... cabac decoding
3 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 * H.264 / AVC / MPEG4 part10 cabac decoding.
25 * @author Michael Niedermayer <michaelni@gmx.at>
30 #include "libavutil/attributes.h"
31 #include "libavutil/avassert.h"
32 #include "libavutil/timer.h"
35 #include "cabac_functions.h"
40 #include "h264_mvpred.h"
42 #include "mpegutils.h"
45 #include "x86/h264_i386.h"
48 /* Cabac pre state table */
50 static const int8_t cabac_context_init_I[1024][2] =
53 { 20, -15 }, { 2, 54 }, { 3, 74 }, { 20, -15 },
54 { 2, 54 }, { 3, 74 }, { -28,127 }, { -23, 104 },
55 { -6, 53 }, { -1, 54 }, { 7, 51 },
57 /* 11 - 23 unsused for I */
58 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
59 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
60 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
64 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
65 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
66 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
67 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
70 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
71 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
72 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
76 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
80 { 0, 41 }, { 0, 63 }, { 0, 63 }, { 0, 63 },
81 { -9, 83 }, { 4, 86 }, { 0, 97 }, { -7, 72 },
82 { 13, 41 }, { 3, 62 },
85 { 0, 11 }, { 1, 55 }, { 0, 69 }, { -17, 127 },
86 { -13, 102 },{ 0, 82 }, { -7, 74 }, { -21, 107 },
87 { -27, 127 },{ -31, 127 },{ -24, 127 }, { -18, 95 },
88 { -27, 127 },{ -21, 114 },{ -30, 127 }, { -17, 123 },
89 { -12, 115 },{ -16, 122 },
92 { -11, 115 },{ -12, 63 }, { -2, 68 }, { -15, 84 },
93 { -13, 104 },{ -3, 70 }, { -8, 93 }, { -10, 90 },
94 { -30, 127 },{ -1, 74 }, { -6, 97 }, { -7, 91 },
95 { -20, 127 },{ -4, 56 }, { -5, 82 }, { -7, 76 },
99 { -7, 93 }, { -11, 87 }, { -3, 77 }, { -5, 71 },
100 { -4, 63 }, { -4, 68 }, { -12, 84 }, { -7, 62 },
101 { -7, 65 }, { 8, 61 }, { 5, 56 }, { -2, 66 },
102 { 1, 64 }, { 0, 61 }, { -2, 78 }, { 1, 50 },
103 { 7, 52 }, { 10, 35 }, { 0, 44 }, { 11, 38 },
104 { 1, 45 }, { 0, 46 }, { 5, 44 }, { 31, 17 },
105 { 1, 51 }, { 7, 50 }, { 28, 19 }, { 16, 33 },
106 { 14, 62 }, { -13, 108 },{ -15, 100 },
109 { -13, 101 },{ -13, 91 }, { -12, 94 }, { -10, 88 },
110 { -16, 84 }, { -10, 86 }, { -7, 83 }, { -13, 87 },
111 { -19, 94 }, { 1, 70 }, { 0, 72 }, { -5, 74 },
112 { 18, 59 }, { -8, 102 }, { -15, 100 }, { 0, 95 },
113 { -4, 75 }, { 2, 72 }, { -11, 75 }, { -3, 71 },
114 { 15, 46 }, { -13, 69 }, { 0, 62 }, { 0, 65 },
115 { 21, 37 }, { -15, 72 }, { 9, 57 }, { 16, 54 },
116 { 0, 62 }, { 12, 72 },
119 { 24, 0 }, { 15, 9 }, { 8, 25 }, { 13, 18 },
120 { 15, 9 }, { 13, 19 }, { 10, 37 }, { 12, 18 },
121 { 6, 29 }, { 20, 33 }, { 15, 30 }, { 4, 45 },
122 { 1, 58 }, { 0, 62 }, { 7, 61 }, { 12, 38 },
123 { 11, 45 }, { 15, 39 }, { 11, 42 }, { 13, 44 },
124 { 16, 45 }, { 12, 41 }, { 10, 49 }, { 30, 34 },
125 { 18, 42 }, { 10, 55 }, { 17, 51 }, { 17, 46 },
126 { 0, 89 }, { 26, -19 }, { 22, -17 },
129 { 26, -17 }, { 30, -25 }, { 28, -20 }, { 33, -23 },
130 { 37, -27 }, { 33, -23 }, { 40, -28 }, { 38, -17 },
131 { 33, -11 }, { 40, -15 }, { 41, -6 }, { 38, 1 },
132 { 41, 17 }, { 30, -6 }, { 27, 3 }, { 26, 22 },
133 { 37, -16 }, { 35, -4 }, { 38, -8 }, { 38, -3 },
134 { 37, 3 }, { 38, 5 }, { 42, 0 }, { 35, 16 },
135 { 39, 22 }, { 14, 48 }, { 27, 37 }, { 21, 60 },
136 { 12, 68 }, { 2, 97 },
139 { -3, 71 }, { -6, 42 }, { -5, 50 }, { -3, 54 },
140 { -2, 62 }, { 0, 58 }, { 1, 63 }, { -2, 72 },
141 { -1, 74 }, { -9, 91 }, { -5, 67 }, { -5, 27 },
142 { -3, 39 }, { -2, 44 }, { 0, 46 }, { -16, 64 },
143 { -8, 68 }, { -10, 78 }, { -6, 77 }, { -10, 86 },
144 { -12, 92 }, { -15, 55 }, { -10, 60 }, { -6, 62 },
148 { -12, 73 }, { -8, 76 }, { -7, 80 }, { -9, 88 },
149 { -17, 110 },{ -11, 97 }, { -20, 84 }, { -11, 79 },
150 { -6, 73 }, { -4, 74 }, { -13, 86 }, { -13, 96 },
151 { -11, 97 }, { -19, 117 },{ -8, 78 }, { -5, 33 },
152 { -4, 48 }, { -2, 53 }, { -3, 62 }, { -13, 71 },
153 { -10, 79 }, { -12, 86 }, { -13, 90 }, { -14, 97 },
155 /* 276 a bit special (not used, bypass is used instead) */
159 { -6, 93 }, { -6, 84 }, { -8, 79 }, { 0, 66 },
160 { -1, 71 }, { 0, 62 }, { -2, 60 }, { -2, 59 },
161 { -5, 75 }, { -3, 62 }, { -4, 58 }, { -9, 66 },
162 { -1, 79 }, { 0, 71 }, { 3, 68 }, { 10, 44 },
163 { -7, 62 }, { 15, 36 }, { 14, 40 }, { 16, 27 },
164 { 12, 29 }, { 1, 44 }, { 20, 36 }, { 18, 32 },
165 { 5, 42 }, { 1, 48 }, { 10, 62 }, { 17, 46 },
166 { 9, 64 }, { -12, 104 },{ -11, 97 },
169 { -16, 96 }, { -7, 88 }, { -8, 85 }, { -7, 85 },
170 { -9, 85 }, { -13, 88 }, { 4, 66 }, { -3, 77 },
171 { -3, 76 }, { -6, 76 }, { 10, 58 }, { -1, 76 },
172 { -1, 83 }, { -7, 99 }, { -14, 95 }, { 2, 95 },
173 { 0, 76 }, { -5, 74 }, { 0, 70 }, { -11, 75 },
174 { 1, 68 }, { 0, 65 }, { -14, 73 }, { 3, 62 },
175 { 4, 62 }, { -1, 68 }, { -13, 75 }, { 11, 55 },
176 { 5, 64 }, { 12, 70 },
179 { 15, 6 }, { 6, 19 }, { 7, 16 }, { 12, 14 },
180 { 18, 13 }, { 13, 11 }, { 13, 15 }, { 15, 16 },
181 { 12, 23 }, { 13, 23 }, { 15, 20 }, { 14, 26 },
182 { 14, 44 }, { 17, 40 }, { 17, 47 }, { 24, 17 },
183 { 21, 21 }, { 25, 22 }, { 31, 27 }, { 22, 29 },
184 { 19, 35 }, { 14, 50 }, { 10, 57 }, { 7, 63 },
185 { -2, 77 }, { -4, 82 }, { -3, 94 }, { 9, 69 },
186 { -12, 109 },{ 36, -35 }, { 36, -34 },
189 { 32, -26 }, { 37, -30 }, { 44, -32 }, { 34, -18 },
190 { 34, -15 }, { 40, -15 }, { 33, -7 }, { 35, -5 },
191 { 33, 0 }, { 38, 2 }, { 33, 13 }, { 23, 35 },
192 { 13, 58 }, { 29, -3 }, { 26, 0 }, { 22, 30 },
193 { 31, -7 }, { 35, -15 }, { 34, -3 }, { 34, 3 },
194 { 36, -1 }, { 34, 5 }, { 32, 11 }, { 35, 5 },
195 { 34, 12 }, { 39, 11 }, { 30, 29 }, { 34, 26 },
196 { 29, 39 }, { 19, 66 },
199 { 31, 21 }, { 31, 31 }, { 25, 50 },
200 { -17, 120 }, { -20, 112 }, { -18, 114 }, { -11, 85 },
201 { -15, 92 }, { -14, 89 }, { -26, 71 }, { -15, 81 },
202 { -14, 80 }, { 0, 68 }, { -14, 70 }, { -24, 56 },
203 { -23, 68 }, { -24, 50 }, { -11, 74 }, { 23, -13 },
204 { 26, -13 }, { 40, -15 }, { 49, -14 }, { 44, 3 },
205 { 45, 6 }, { 44, 34 }, { 33, 54 }, { 19, 82 },
206 { -3, 75 }, { -1, 23 }, { 1, 34 }, { 1, 43 },
207 { 0, 54 }, { -2, 55 }, { 0, 61 }, { 1, 64 },
208 { 0, 68 }, { -9, 92 },
211 { -14, 106 }, { -13, 97 }, { -15, 90 }, { -12, 90 },
212 { -18, 88 }, { -10, 73 }, { -9, 79 }, { -14, 86 },
213 { -10, 73 }, { -10, 70 }, { -10, 69 }, { -5, 66 },
214 { -9, 64 }, { -5, 58 }, { 2, 59 }, { 21, -10 },
215 { 24, -11 }, { 28, -8 }, { 28, -1 }, { 29, 3 },
216 { 29, 9 }, { 35, 20 }, { 29, 36 }, { 14, 67 },
219 { -17, 123 }, { -12, 115 }, { -16, 122 }, { -11, 115 },
220 { -12, 63 }, { -2, 68 }, { -15, 84 }, { -13, 104 },
221 { -3, 70 }, { -8, 93 }, { -10, 90 }, { -30, 127 },
222 { -17, 123 }, { -12, 115 }, { -16, 122 }, { -11, 115 },
223 { -12, 63 }, { -2, 68 }, { -15, 84 }, { -13, 104 },
224 { -3, 70 }, { -8, 93 }, { -10, 90 }, { -30, 127 },
225 { -7, 93 }, { -11, 87 }, { -3, 77 }, { -5, 71 },
226 { -4, 63 }, { -4, 68 }, { -12, 84 }, { -7, 62 },
227 { -7, 65 }, { 8, 61 }, { 5, 56 }, { -2, 66 },
228 { 1, 64 }, { 0, 61 }, { -2, 78 }, { 1, 50 },
229 { 7, 52 }, { 10, 35 }, { 0, 44 }, { 11, 38 },
230 { 1, 45 }, { 0, 46 }, { 5, 44 }, { 31, 17 },
231 { 1, 51 }, { 7, 50 }, { 28, 19 }, { 16, 33 },
232 { 14, 62 }, { -13, 108 }, { -15, 100 }, { -13, 101 },
233 { -13, 91 }, { -12, 94 }, { -10, 88 }, { -16, 84 },
234 { -10, 86 }, { -7, 83 }, { -13, 87 }, { -19, 94 },
235 { 1, 70 }, { 0, 72 }, { -5, 74 }, { 18, 59 },
236 { -7, 93 }, { -11, 87 }, { -3, 77 }, { -5, 71 },
237 { -4, 63 }, { -4, 68 }, { -12, 84 }, { -7, 62 },
238 { -7, 65 }, { 8, 61 }, { 5, 56 }, { -2, 66 },
239 { 1, 64 }, { 0, 61 }, { -2, 78 }, { 1, 50 },
240 { 7, 52 }, { 10, 35 }, { 0, 44 }, { 11, 38 },
241 { 1, 45 }, { 0, 46 }, { 5, 44 }, { 31, 17 },
242 { 1, 51 }, { 7, 50 }, { 28, 19 }, { 16, 33 },
243 { 14, 62 }, { -13, 108 }, { -15, 100 }, { -13, 101 },
244 { -13, 91 }, { -12, 94 }, { -10, 88 }, { -16, 84 },
245 { -10, 86 }, { -7, 83 }, { -13, 87 }, { -19, 94 },
246 { 1, 70 }, { 0, 72 }, { -5, 74 }, { 18, 59 },
247 { 24, 0 }, { 15, 9 }, { 8, 25 }, { 13, 18 },
248 { 15, 9 }, { 13, 19 }, { 10, 37 }, { 12, 18 },
249 { 6, 29 }, { 20, 33 }, { 15, 30 }, { 4, 45 },
250 { 1, 58 }, { 0, 62 }, { 7, 61 }, { 12, 38 },
251 { 11, 45 }, { 15, 39 }, { 11, 42 }, { 13, 44 },
252 { 16, 45 }, { 12, 41 }, { 10, 49 }, { 30, 34 },
253 { 18, 42 }, { 10, 55 }, { 17, 51 }, { 17, 46 },
254 { 0, 89 }, { 26, -19 }, { 22, -17 }, { 26, -17 },
255 { 30, -25 }, { 28, -20 }, { 33, -23 }, { 37, -27 },
256 { 33, -23 }, { 40, -28 }, { 38, -17 }, { 33, -11 },
257 { 40, -15 }, { 41, -6 }, { 38, 1 }, { 41, 17 },
258 { 24, 0 }, { 15, 9 }, { 8, 25 }, { 13, 18 },
259 { 15, 9 }, { 13, 19 }, { 10, 37 }, { 12, 18 },
260 { 6, 29 }, { 20, 33 }, { 15, 30 }, { 4, 45 },
261 { 1, 58 }, { 0, 62 }, { 7, 61 }, { 12, 38 },
262 { 11, 45 }, { 15, 39 }, { 11, 42 }, { 13, 44 },
263 { 16, 45 }, { 12, 41 }, { 10, 49 }, { 30, 34 },
264 { 18, 42 }, { 10, 55 }, { 17, 51 }, { 17, 46 },
265 { 0, 89 }, { 26, -19 }, { 22, -17 }, { 26, -17 },
266 { 30, -25 }, { 28, -20 }, { 33, -23 }, { 37, -27 },
267 { 33, -23 }, { 40, -28 }, { 38, -17 }, { 33, -11 },
268 { 40, -15 }, { 41, -6 }, { 38, 1 }, { 41, 17 },
269 { -17, 120 }, { -20, 112 }, { -18, 114 }, { -11, 85 },
270 { -15, 92 }, { -14, 89 }, { -26, 71 }, { -15, 81 },
271 { -14, 80 }, { 0, 68 }, { -14, 70 }, { -24, 56 },
272 { -23, 68 }, { -24, 50 }, { -11, 74 }, { -14, 106 },
273 { -13, 97 }, { -15, 90 }, { -12, 90 }, { -18, 88 },
274 { -10, 73 }, { -9, 79 }, { -14, 86 }, { -10, 73 },
275 { -10, 70 }, { -10, 69 }, { -5, 66 }, { -9, 64 },
276 { -5, 58 }, { 2, 59 }, { 23, -13 }, { 26, -13 },
277 { 40, -15 }, { 49, -14 }, { 44, 3 }, { 45, 6 },
278 { 44, 34 }, { 33, 54 }, { 19, 82 }, { 21, -10 },
279 { 24, -11 }, { 28, -8 }, { 28, -1 }, { 29, 3 },
280 { 29, 9 }, { 35, 20 }, { 29, 36 }, { 14, 67 },
281 { -3, 75 }, { -1, 23 }, { 1, 34 }, { 1, 43 },
282 { 0, 54 }, { -2, 55 }, { 0, 61 }, { 1, 64 },
283 { 0, 68 }, { -9, 92 }, { -17, 120 }, { -20, 112 },
284 { -18, 114 }, { -11, 85 }, { -15, 92 }, { -14, 89 },
285 { -26, 71 }, { -15, 81 }, { -14, 80 }, { 0, 68 },
286 { -14, 70 }, { -24, 56 }, { -23, 68 }, { -24, 50 },
287 { -11, 74 }, { -14, 106 }, { -13, 97 }, { -15, 90 },
288 { -12, 90 }, { -18, 88 }, { -10, 73 }, { -9, 79 },
289 { -14, 86 }, { -10, 73 }, { -10, 70 }, { -10, 69 },
290 { -5, 66 }, { -9, 64 }, { -5, 58 }, { 2, 59 },
291 { 23, -13 }, { 26, -13 }, { 40, -15 }, { 49, -14 },
292 { 44, 3 }, { 45, 6 }, { 44, 34 }, { 33, 54 },
293 { 19, 82 }, { 21, -10 }, { 24, -11 }, { 28, -8 },
294 { 28, -1 }, { 29, 3 }, { 29, 9 }, { 35, 20 },
295 { 29, 36 }, { 14, 67 }, { -3, 75 }, { -1, 23 },
296 { 1, 34 }, { 1, 43 }, { 0, 54 }, { -2, 55 },
297 { 0, 61 }, { 1, 64 }, { 0, 68 }, { -9, 92 },
298 { -6, 93 }, { -6, 84 }, { -8, 79 }, { 0, 66 },
299 { -1, 71 }, { 0, 62 }, { -2, 60 }, { -2, 59 },
300 { -5, 75 }, { -3, 62 }, { -4, 58 }, { -9, 66 },
301 { -1, 79 }, { 0, 71 }, { 3, 68 }, { 10, 44 },
302 { -7, 62 }, { 15, 36 }, { 14, 40 }, { 16, 27 },
303 { 12, 29 }, { 1, 44 }, { 20, 36 }, { 18, 32 },
304 { 5, 42 }, { 1, 48 }, { 10, 62 }, { 17, 46 },
305 { 9, 64 }, { -12, 104 }, { -11, 97 }, { -16, 96 },
306 { -7, 88 }, { -8, 85 }, { -7, 85 }, { -9, 85 },
307 { -13, 88 }, { 4, 66 }, { -3, 77 }, { -3, 76 },
308 { -6, 76 }, { 10, 58 }, { -1, 76 }, { -1, 83 },
309 { -6, 93 }, { -6, 84 }, { -8, 79 }, { 0, 66 },
310 { -1, 71 }, { 0, 62 }, { -2, 60 }, { -2, 59 },
311 { -5, 75 }, { -3, 62 }, { -4, 58 }, { -9, 66 },
312 { -1, 79 }, { 0, 71 }, { 3, 68 }, { 10, 44 },
313 { -7, 62 }, { 15, 36 }, { 14, 40 }, { 16, 27 },
314 { 12, 29 }, { 1, 44 }, { 20, 36 }, { 18, 32 },
315 { 5, 42 }, { 1, 48 }, { 10, 62 }, { 17, 46 },
316 { 9, 64 }, { -12, 104 }, { -11, 97 }, { -16, 96 },
317 { -7, 88 }, { -8, 85 }, { -7, 85 }, { -9, 85 },
318 { -13, 88 }, { 4, 66 }, { -3, 77 }, { -3, 76 },
319 { -6, 76 }, { 10, 58 }, { -1, 76 }, { -1, 83 },
320 { 15, 6 }, { 6, 19 }, { 7, 16 }, { 12, 14 },
321 { 18, 13 }, { 13, 11 }, { 13, 15 }, { 15, 16 },
322 { 12, 23 }, { 13, 23 }, { 15, 20 }, { 14, 26 },
323 { 14, 44 }, { 17, 40 }, { 17, 47 }, { 24, 17 },
324 { 21, 21 }, { 25, 22 }, { 31, 27 }, { 22, 29 },
325 { 19, 35 }, { 14, 50 }, { 10, 57 }, { 7, 63 },
326 { -2, 77 }, { -4, 82 }, { -3, 94 }, { 9, 69 },
327 { -12, 109 }, { 36, -35 }, { 36, -34 }, { 32, -26 },
328 { 37, -30 }, { 44, -32 }, { 34, -18 }, { 34, -15 },
329 { 40, -15 }, { 33, -7 }, { 35, -5 }, { 33, 0 },
330 { 38, 2 }, { 33, 13 }, { 23, 35 }, { 13, 58 },
331 { 15, 6 }, { 6, 19 }, { 7, 16 }, { 12, 14 },
332 { 18, 13 }, { 13, 11 }, { 13, 15 }, { 15, 16 },
333 { 12, 23 }, { 13, 23 }, { 15, 20 }, { 14, 26 },
334 { 14, 44 }, { 17, 40 }, { 17, 47 }, { 24, 17 },
335 { 21, 21 }, { 25, 22 }, { 31, 27 }, { 22, 29 },
336 { 19, 35 }, { 14, 50 }, { 10, 57 }, { 7, 63 },
337 { -2, 77 }, { -4, 82 }, { -3, 94 }, { 9, 69 },
338 { -12, 109 }, { 36, -35 }, { 36, -34 }, { 32, -26 },
339 { 37, -30 }, { 44, -32 }, { 34, -18 }, { 34, -15 },
340 { 40, -15 }, { 33, -7 }, { 35, -5 }, { 33, 0 },
341 { 38, 2 }, { 33, 13 }, { 23, 35 }, { 13, 58 },
342 { -3, 71 }, { -6, 42 }, { -5, 50 }, { -3, 54 },
343 { -2, 62 }, { 0, 58 }, { 1, 63 }, { -2, 72 },
344 { -1, 74 }, { -9, 91 }, { -5, 67 }, { -5, 27 },
345 { -3, 39 }, { -2, 44 }, { 0, 46 }, { -16, 64 },
346 { -8, 68 }, { -10, 78 }, { -6, 77 }, { -10, 86 },
347 { -12, 92 }, { -15, 55 }, { -10, 60 }, { -6, 62 },
348 { -4, 65 }, { -12, 73 }, { -8, 76 }, { -7, 80 },
349 { -9, 88 }, { -17, 110 }, { -3, 71 }, { -6, 42 },
350 { -5, 50 }, { -3, 54 }, { -2, 62 }, { 0, 58 },
351 { 1, 63 }, { -2, 72 }, { -1, 74 }, { -9, 91 },
352 { -5, 67 }, { -5, 27 }, { -3, 39 }, { -2, 44 },
353 { 0, 46 }, { -16, 64 }, { -8, 68 }, { -10, 78 },
354 { -6, 77 }, { -10, 86 }, { -12, 92 }, { -15, 55 },
355 { -10, 60 }, { -6, 62 }, { -4, 65 }, { -12, 73 },
356 { -8, 76 }, { -7, 80 }, { -9, 88 }, { -17, 110 },
357 { -3, 70 }, { -8, 93 }, { -10, 90 }, { -30, 127 },
358 { -3, 70 }, { -8, 93 }, { -10, 90 }, { -30, 127 },
359 { -3, 70 }, { -8, 93 }, { -10, 90 }, { -30, 127 }
362 static const int8_t cabac_context_init_PB[3][1024][2] =
364 /* i_cabac_init_idc == 0 */
367 { 20, -15 }, { 2, 54 }, { 3, 74 }, { 20, -15 },
368 { 2, 54 }, { 3, 74 }, { -28, 127 }, { -23, 104 },
369 { -6, 53 }, { -1, 54 }, { 7, 51 },
372 { 23, 33 }, { 23, 2 }, { 21, 0 }, { 1, 9 },
373 { 0, 49 }, { -37, 118 }, { 5, 57 }, { -13, 78 },
374 { -11, 65 }, { 1, 62 }, { 12, 49 }, { -4, 73 },
378 { 18, 64 }, { 9, 43 }, { 29, 0 }, { 26, 67 },
379 { 16, 90 }, { 9, 104 }, { -46, 127 }, { -20, 104 },
380 { 1, 67 }, { -13, 78 }, { -11, 65 }, { 1, 62 },
381 { -6, 86 }, { -17, 95 }, { -6, 61 }, { 9, 45 },
384 { -3, 69 }, { -6, 81 }, { -11, 96 }, { 6, 55 },
385 { 7, 67 }, { -5, 86 }, { 2, 88 }, { 0, 58 },
386 { -3, 76 }, { -10, 94 }, { 5, 54 }, { 4, 69 },
387 { -3, 81 }, { 0, 88 },
390 { -7, 67 }, { -5, 74 }, { -4, 74 }, { -5, 80 },
391 { -7, 72 }, { 1, 58 },
394 { 0, 41 }, { 0, 63 }, { 0, 63 }, { 0, 63 },
395 { -9, 83 }, { 4, 86 }, { 0, 97 }, { -7, 72 },
396 { 13, 41 }, { 3, 62 },
399 { 0, 45 }, { -4, 78 }, { -3, 96 }, { -27, 126 },
400 { -28, 98 }, { -25, 101 }, { -23, 67 }, { -28, 82 },
401 { -20, 94 }, { -16, 83 }, { -22, 110 }, { -21, 91 },
402 { -18, 102 }, { -13, 93 }, { -29, 127 }, { -7, 92 },
403 { -5, 89 }, { -7, 96 }, { -13, 108 }, { -3, 46 },
404 { -1, 65 }, { -1, 57 }, { -9, 93 }, { -3, 74 },
405 { -9, 92 }, { -8, 87 }, { -23, 126 }, { 5, 54 },
406 { 6, 60 }, { 6, 59 }, { 6, 69 }, { -1, 48 },
407 { 0, 68 }, { -4, 69 }, { -8, 88 },
410 { -2, 85 }, { -6, 78 }, { -1, 75 }, { -7, 77 },
411 { 2, 54 }, { 5, 50 }, { -3, 68 }, { 1, 50 },
412 { 6, 42 }, { -4, 81 }, { 1, 63 }, { -4, 70 },
413 { 0, 67 }, { 2, 57 }, { -2, 76 }, { 11, 35 },
414 { 4, 64 }, { 1, 61 }, { 11, 35 }, { 18, 25 },
415 { 12, 24 }, { 13, 29 }, { 13, 36 }, { -10, 93 },
416 { -7, 73 }, { -2, 73 }, { 13, 46 }, { 9, 49 },
417 { -7, 100 }, { 9, 53 }, { 2, 53 }, { 5, 53 },
418 { -2, 61 }, { 0, 56 }, { 0, 56 }, { -13, 63 },
419 { -5, 60 }, { -1, 62 }, { 4, 57 }, { -6, 69 },
420 { 4, 57 }, { 14, 39 }, { 4, 51 }, { 13, 68 },
421 { 3, 64 }, { 1, 61 }, { 9, 63 }, { 7, 50 },
422 { 16, 39 }, { 5, 44 }, { 4, 52 }, { 11, 48 },
423 { -5, 60 }, { -1, 59 }, { 0, 59 }, { 22, 33 },
424 { 5, 44 }, { 14, 43 }, { -1, 78 }, { 0, 60 },
428 { 11, 28 }, { 2, 40 }, { 3, 44 }, { 0, 49 },
429 { 0, 46 }, { 2, 44 }, { 2, 51 }, { 0, 47 },
430 { 4, 39 }, { 2, 62 }, { 6, 46 }, { 0, 54 },
431 { 3, 54 }, { 2, 58 }, { 4, 63 }, { 6, 51 },
432 { 6, 57 }, { 7, 53 }, { 6, 52 }, { 6, 55 },
433 { 11, 45 }, { 14, 36 }, { 8, 53 }, { -1, 82 },
434 { 7, 55 }, { -3, 78 }, { 15, 46 }, { 22, 31 },
435 { -1, 84 }, { 25, 7 }, { 30, -7 }, { 28, 3 },
436 { 28, 4 }, { 32, 0 }, { 34, -1 }, { 30, 6 },
437 { 30, 6 }, { 32, 9 }, { 31, 19 }, { 26, 27 },
438 { 26, 30 }, { 37, 20 }, { 28, 34 }, { 17, 70 },
439 { 1, 67 }, { 5, 59 }, { 9, 67 }, { 16, 30 },
440 { 18, 32 }, { 18, 35 }, { 22, 29 }, { 24, 31 },
441 { 23, 38 }, { 18, 43 }, { 20, 41 }, { 11, 63 },
442 { 9, 59 }, { 9, 64 }, { -1, 94 }, { -2, 89 },
446 { -6, 76 }, { -2, 44 }, { 0, 45 }, { 0, 52 },
447 { -3, 64 }, { -2, 59 }, { -4, 70 }, { -4, 75 },
448 { -8, 82 }, { -17, 102 }, { -9, 77 }, { 3, 24 },
449 { 0, 42 }, { 0, 48 }, { 0, 55 }, { -6, 59 },
450 { -7, 71 }, { -12, 83 }, { -11, 87 }, { -30, 119 },
451 { 1, 58 }, { -3, 29 }, { -1, 36 }, { 1, 38 },
452 { 2, 43 }, { -6, 55 }, { 0, 58 }, { 0, 64 },
453 { -3, 74 }, { -10, 90 }, { 0, 70 }, { -4, 29 },
454 { 5, 31 }, { 7, 42 }, { 1, 59 }, { -2, 58 },
455 { -3, 72 }, { -3, 81 }, { -11, 97 }, { 0, 58 },
456 { 8, 5 }, { 10, 14 }, { 14, 18 }, { 13, 27 },
457 { 2, 40 }, { 0, 58 }, { -3, 70 }, { -6, 79 },
460 /* 276 a bit special (not used, bypass is used instead) */
464 { -13, 106 }, { -16, 106 }, { -10, 87 }, { -21, 114 },
465 { -18, 110 }, { -14, 98 }, { -22, 110 }, { -21, 106 },
466 { -18, 103 }, { -21, 107 }, { -23, 108 }, { -26, 112 },
467 { -10, 96 }, { -12, 95 }, { -5, 91 }, { -9, 93 },
468 { -22, 94 }, { -5, 86 }, { 9, 67 }, { -4, 80 },
469 { -10, 85 }, { -1, 70 }, { 7, 60 }, { 9, 58 },
470 { 5, 61 }, { 12, 50 }, { 15, 50 }, { 18, 49 },
471 { 17, 54 }, { 10, 41 }, { 7, 46 }, { -1, 51 },
472 { 7, 49 }, { 8, 52 }, { 9, 41 }, { 6, 47 },
473 { 2, 55 }, { 13, 41 }, { 10, 44 }, { 6, 50 },
474 { 5, 53 }, { 13, 49 }, { 4, 63 }, { 6, 64 },
475 { -2, 69 }, { -2, 59 }, { 6, 70 }, { 10, 44 },
476 { 9, 31 }, { 12, 43 }, { 3, 53 }, { 14, 34 },
477 { 10, 38 }, { -3, 52 }, { 13, 40 }, { 17, 32 },
478 { 7, 44 }, { 7, 38 }, { 13, 50 }, { 10, 57 },
482 { 14, 11 }, { 11, 14 }, { 9, 11 }, { 18, 11 },
483 { 21, 9 }, { 23, -2 }, { 32, -15 }, { 32, -15 },
484 { 34, -21 }, { 39, -23 }, { 42, -33 }, { 41, -31 },
485 { 46, -28 }, { 38, -12 }, { 21, 29 }, { 45, -24 },
486 { 53, -45 }, { 48, -26 }, { 65, -43 }, { 43, -19 },
487 { 39, -10 }, { 30, 9 }, { 18, 26 }, { 20, 27 },
488 { 0, 57 }, { -14, 82 }, { -5, 75 }, { -19, 97 },
489 { -35, 125 }, { 27, 0 }, { 28, 0 }, { 31, -4 },
490 { 27, 6 }, { 34, 8 }, { 30, 10 }, { 24, 22 },
491 { 33, 19 }, { 22, 32 }, { 26, 31 }, { 21, 41 },
492 { 26, 44 }, { 23, 47 }, { 16, 65 }, { 14, 71 },
493 { 8, 60 }, { 6, 63 }, { 17, 65 }, { 21, 24 },
494 { 23, 20 }, { 26, 23 }, { 27, 32 }, { 28, 23 },
495 { 28, 24 }, { 23, 40 }, { 24, 32 }, { 28, 29 },
496 { 23, 42 }, { 19, 57 }, { 22, 53 }, { 22, 61 },
500 { 12, 40 }, { 11, 51 }, { 14, 59 },
501 { -4, 79 }, { -7, 71 }, { -5, 69 }, { -9, 70 },
502 { -8, 66 }, { -10, 68 }, { -19, 73 }, { -12, 69 },
503 { -16, 70 }, { -15, 67 }, { -20, 62 }, { -19, 70 },
504 { -16, 66 }, { -22, 65 }, { -20, 63 }, { 9, -2 },
505 { 26, -9 }, { 33, -9 }, { 39, -7 }, { 41, -2 },
506 { 45, 3 }, { 49, 9 }, { 45, 27 }, { 36, 59 },
507 { -6, 66 }, { -7, 35 }, { -7, 42 }, { -8, 45 },
508 { -5, 48 }, { -12, 56 }, { -6, 60 }, { -5, 62 },
509 { -8, 66 }, { -8, 76 },
512 { -5, 85 }, { -6, 81 }, { -10, 77 }, { -7, 81 },
513 { -17, 80 }, { -18, 73 }, { -4, 74 }, { -10, 83 },
514 { -9, 71 }, { -9, 67 }, { -1, 61 }, { -8, 66 },
515 { -14, 66 }, { 0, 59 }, { 2, 59 }, { 21, -13 },
516 { 33, -14 }, { 39, -7 }, { 46, -2 }, { 51, 2 },
517 { 60, 6 }, { 61, 17 }, { 55, 34 }, { 42, 62 },
520 { -7, 92 }, { -5, 89 }, { -7, 96 }, { -13, 108 },
521 { -3, 46 }, { -1, 65 }, { -1, 57 }, { -9, 93 },
522 { -3, 74 }, { -9, 92 }, { -8, 87 }, { -23, 126 },
523 { -7, 92 }, { -5, 89 }, { -7, 96 }, { -13, 108 },
524 { -3, 46 }, { -1, 65 }, { -1, 57 }, { -9, 93 },
525 { -3, 74 }, { -9, 92 }, { -8, 87 }, { -23, 126 },
526 { -2, 85 }, { -6, 78 }, { -1, 75 }, { -7, 77 },
527 { 2, 54 }, { 5, 50 }, { -3, 68 }, { 1, 50 },
528 { 6, 42 }, { -4, 81 }, { 1, 63 }, { -4, 70 },
529 { 0, 67 }, { 2, 57 }, { -2, 76 }, { 11, 35 },
530 { 4, 64 }, { 1, 61 }, { 11, 35 }, { 18, 25 },
531 { 12, 24 }, { 13, 29 }, { 13, 36 }, { -10, 93 },
532 { -7, 73 }, { -2, 73 }, { 13, 46 }, { 9, 49 },
533 { -7, 100 }, { 9, 53 }, { 2, 53 }, { 5, 53 },
534 { -2, 61 }, { 0, 56 }, { 0, 56 }, { -13, 63 },
535 { -5, 60 }, { -1, 62 }, { 4, 57 }, { -6, 69 },
536 { 4, 57 }, { 14, 39 }, { 4, 51 }, { 13, 68 },
537 { -2, 85 }, { -6, 78 }, { -1, 75 }, { -7, 77 },
538 { 2, 54 }, { 5, 50 }, { -3, 68 }, { 1, 50 },
539 { 6, 42 }, { -4, 81 }, { 1, 63 }, { -4, 70 },
540 { 0, 67 }, { 2, 57 }, { -2, 76 }, { 11, 35 },
541 { 4, 64 }, { 1, 61 }, { 11, 35 }, { 18, 25 },
542 { 12, 24 }, { 13, 29 }, { 13, 36 }, { -10, 93 },
543 { -7, 73 }, { -2, 73 }, { 13, 46 }, { 9, 49 },
544 { -7, 100 }, { 9, 53 }, { 2, 53 }, { 5, 53 },
545 { -2, 61 }, { 0, 56 }, { 0, 56 }, { -13, 63 },
546 { -5, 60 }, { -1, 62 }, { 4, 57 }, { -6, 69 },
547 { 4, 57 }, { 14, 39 }, { 4, 51 }, { 13, 68 },
548 { 11, 28 }, { 2, 40 }, { 3, 44 }, { 0, 49 },
549 { 0, 46 }, { 2, 44 }, { 2, 51 }, { 0, 47 },
550 { 4, 39 }, { 2, 62 }, { 6, 46 }, { 0, 54 },
551 { 3, 54 }, { 2, 58 }, { 4, 63 }, { 6, 51 },
552 { 6, 57 }, { 7, 53 }, { 6, 52 }, { 6, 55 },
553 { 11, 45 }, { 14, 36 }, { 8, 53 }, { -1, 82 },
554 { 7, 55 }, { -3, 78 }, { 15, 46 }, { 22, 31 },
555 { -1, 84 }, { 25, 7 }, { 30, -7 }, { 28, 3 },
556 { 28, 4 }, { 32, 0 }, { 34, -1 }, { 30, 6 },
557 { 30, 6 }, { 32, 9 }, { 31, 19 }, { 26, 27 },
558 { 26, 30 }, { 37, 20 }, { 28, 34 }, { 17, 70 },
559 { 11, 28 }, { 2, 40 }, { 3, 44 }, { 0, 49 },
560 { 0, 46 }, { 2, 44 }, { 2, 51 }, { 0, 47 },
561 { 4, 39 }, { 2, 62 }, { 6, 46 }, { 0, 54 },
562 { 3, 54 }, { 2, 58 }, { 4, 63 }, { 6, 51 },
563 { 6, 57 }, { 7, 53 }, { 6, 52 }, { 6, 55 },
564 { 11, 45 }, { 14, 36 }, { 8, 53 }, { -1, 82 },
565 { 7, 55 }, { -3, 78 }, { 15, 46 }, { 22, 31 },
566 { -1, 84 }, { 25, 7 }, { 30, -7 }, { 28, 3 },
567 { 28, 4 }, { 32, 0 }, { 34, -1 }, { 30, 6 },
568 { 30, 6 }, { 32, 9 }, { 31, 19 }, { 26, 27 },
569 { 26, 30 }, { 37, 20 }, { 28, 34 }, { 17, 70 },
570 { -4, 79 }, { -7, 71 }, { -5, 69 }, { -9, 70 },
571 { -8, 66 }, { -10, 68 }, { -19, 73 }, { -12, 69 },
572 { -16, 70 }, { -15, 67 }, { -20, 62 }, { -19, 70 },
573 { -16, 66 }, { -22, 65 }, { -20, 63 }, { -5, 85 },
574 { -6, 81 }, { -10, 77 }, { -7, 81 }, { -17, 80 },
575 { -18, 73 }, { -4, 74 }, { -10, 83 }, { -9, 71 },
576 { -9, 67 }, { -1, 61 }, { -8, 66 }, { -14, 66 },
577 { 0, 59 }, { 2, 59 }, { 9, -2 }, { 26, -9 },
578 { 33, -9 }, { 39, -7 }, { 41, -2 }, { 45, 3 },
579 { 49, 9 }, { 45, 27 }, { 36, 59 }, { 21, -13 },
580 { 33, -14 }, { 39, -7 }, { 46, -2 }, { 51, 2 },
581 { 60, 6 }, { 61, 17 }, { 55, 34 }, { 42, 62 },
582 { -6, 66 }, { -7, 35 }, { -7, 42 }, { -8, 45 },
583 { -5, 48 }, { -12, 56 }, { -6, 60 }, { -5, 62 },
584 { -8, 66 }, { -8, 76 }, { -4, 79 }, { -7, 71 },
585 { -5, 69 }, { -9, 70 }, { -8, 66 }, { -10, 68 },
586 { -19, 73 }, { -12, 69 }, { -16, 70 }, { -15, 67 },
587 { -20, 62 }, { -19, 70 }, { -16, 66 }, { -22, 65 },
588 { -20, 63 }, { -5, 85 }, { -6, 81 }, { -10, 77 },
589 { -7, 81 }, { -17, 80 }, { -18, 73 }, { -4, 74 },
590 { -10, 83 }, { -9, 71 }, { -9, 67 }, { -1, 61 },
591 { -8, 66 }, { -14, 66 }, { 0, 59 }, { 2, 59 },
592 { 9, -2 }, { 26, -9 }, { 33, -9 }, { 39, -7 },
593 { 41, -2 }, { 45, 3 }, { 49, 9 }, { 45, 27 },
594 { 36, 59 }, { 21, -13 }, { 33, -14 }, { 39, -7 },
595 { 46, -2 }, { 51, 2 }, { 60, 6 }, { 61, 17 },
596 { 55, 34 }, { 42, 62 }, { -6, 66 }, { -7, 35 },
597 { -7, 42 }, { -8, 45 }, { -5, 48 }, { -12, 56 },
598 { -6, 60 }, { -5, 62 }, { -8, 66 }, { -8, 76 },
599 { -13, 106 }, { -16, 106 }, { -10, 87 }, { -21, 114 },
600 { -18, 110 }, { -14, 98 }, { -22, 110 }, { -21, 106 },
601 { -18, 103 }, { -21, 107 }, { -23, 108 }, { -26, 112 },
602 { -10, 96 }, { -12, 95 }, { -5, 91 }, { -9, 93 },
603 { -22, 94 }, { -5, 86 }, { 9, 67 }, { -4, 80 },
604 { -10, 85 }, { -1, 70 }, { 7, 60 }, { 9, 58 },
605 { 5, 61 }, { 12, 50 }, { 15, 50 }, { 18, 49 },
606 { 17, 54 }, { 10, 41 }, { 7, 46 }, { -1, 51 },
607 { 7, 49 }, { 8, 52 }, { 9, 41 }, { 6, 47 },
608 { 2, 55 }, { 13, 41 }, { 10, 44 }, { 6, 50 },
609 { 5, 53 }, { 13, 49 }, { 4, 63 }, { 6, 64 },
610 { -13, 106 }, { -16, 106 }, { -10, 87 }, { -21, 114 },
611 { -18, 110 }, { -14, 98 }, { -22, 110 }, { -21, 106 },
612 { -18, 103 }, { -21, 107 }, { -23, 108 }, { -26, 112 },
613 { -10, 96 }, { -12, 95 }, { -5, 91 }, { -9, 93 },
614 { -22, 94 }, { -5, 86 }, { 9, 67 }, { -4, 80 },
615 { -10, 85 }, { -1, 70 }, { 7, 60 }, { 9, 58 },
616 { 5, 61 }, { 12, 50 }, { 15, 50 }, { 18, 49 },
617 { 17, 54 }, { 10, 41 }, { 7, 46 }, { -1, 51 },
618 { 7, 49 }, { 8, 52 }, { 9, 41 }, { 6, 47 },
619 { 2, 55 }, { 13, 41 }, { 10, 44 }, { 6, 50 },
620 { 5, 53 }, { 13, 49 }, { 4, 63 }, { 6, 64 },
621 { 14, 11 }, { 11, 14 }, { 9, 11 }, { 18, 11 },
622 { 21, 9 }, { 23, -2 }, { 32, -15 }, { 32, -15 },
623 { 34, -21 }, { 39, -23 }, { 42, -33 }, { 41, -31 },
624 { 46, -28 }, { 38, -12 }, { 21, 29 }, { 45, -24 },
625 { 53, -45 }, { 48, -26 }, { 65, -43 }, { 43, -19 },
626 { 39, -10 }, { 30, 9 }, { 18, 26 }, { 20, 27 },
627 { 0, 57 }, { -14, 82 }, { -5, 75 }, { -19, 97 },
628 { -35, 125 }, { 27, 0 }, { 28, 0 }, { 31, -4 },
629 { 27, 6 }, { 34, 8 }, { 30, 10 }, { 24, 22 },
630 { 33, 19 }, { 22, 32 }, { 26, 31 }, { 21, 41 },
631 { 26, 44 }, { 23, 47 }, { 16, 65 }, { 14, 71 },
632 { 14, 11 }, { 11, 14 }, { 9, 11 }, { 18, 11 },
633 { 21, 9 }, { 23, -2 }, { 32, -15 }, { 32, -15 },
634 { 34, -21 }, { 39, -23 }, { 42, -33 }, { 41, -31 },
635 { 46, -28 }, { 38, -12 }, { 21, 29 }, { 45, -24 },
636 { 53, -45 }, { 48, -26 }, { 65, -43 }, { 43, -19 },
637 { 39, -10 }, { 30, 9 }, { 18, 26 }, { 20, 27 },
638 { 0, 57 }, { -14, 82 }, { -5, 75 }, { -19, 97 },
639 { -35, 125 }, { 27, 0 }, { 28, 0 }, { 31, -4 },
640 { 27, 6 }, { 34, 8 }, { 30, 10 }, { 24, 22 },
641 { 33, 19 }, { 22, 32 }, { 26, 31 }, { 21, 41 },
642 { 26, 44 }, { 23, 47 }, { 16, 65 }, { 14, 71 },
643 { -6, 76 }, { -2, 44 }, { 0, 45 }, { 0, 52 },
644 { -3, 64 }, { -2, 59 }, { -4, 70 }, { -4, 75 },
645 { -8, 82 }, { -17, 102 }, { -9, 77 }, { 3, 24 },
646 { 0, 42 }, { 0, 48 }, { 0, 55 }, { -6, 59 },
647 { -7, 71 }, { -12, 83 }, { -11, 87 }, { -30, 119 },
648 { 1, 58 }, { -3, 29 }, { -1, 36 }, { 1, 38 },
649 { 2, 43 }, { -6, 55 }, { 0, 58 }, { 0, 64 },
650 { -3, 74 }, { -10, 90 }, { -6, 76 }, { -2, 44 },
651 { 0, 45 }, { 0, 52 }, { -3, 64 }, { -2, 59 },
652 { -4, 70 }, { -4, 75 }, { -8, 82 }, { -17, 102 },
653 { -9, 77 }, { 3, 24 }, { 0, 42 }, { 0, 48 },
654 { 0, 55 }, { -6, 59 }, { -7, 71 }, { -12, 83 },
655 { -11, 87 }, { -30, 119 }, { 1, 58 }, { -3, 29 },
656 { -1, 36 }, { 1, 38 }, { 2, 43 }, { -6, 55 },
657 { 0, 58 }, { 0, 64 }, { -3, 74 }, { -10, 90 },
658 { -3, 74 }, { -9, 92 }, { -8, 87 }, { -23, 126 },
659 { -3, 74 }, { -9, 92 }, { -8, 87 }, { -23, 126 },
660 { -3, 74 }, { -9, 92 }, { -8, 87 }, { -23, 126 }
663 /* i_cabac_init_idc == 1 */
666 { 20, -15 }, { 2, 54 }, { 3, 74 }, { 20, -15 },
667 { 2, 54 }, { 3, 74 }, { -28, 127 }, { -23, 104 },
668 { -6, 53 }, { -1, 54 }, { 7, 51 },
671 { 22, 25 }, { 34, 0 }, { 16, 0 }, { -2, 9 },
672 { 4, 41 }, { -29, 118 }, { 2, 65 }, { -6, 71 },
673 { -13, 79 }, { 5, 52 }, { 9, 50 }, { -3, 70 },
677 { 26, 34 }, { 19, 22 }, { 40, 0 }, { 57, 2 },
678 { 41, 36 }, { 26, 69 }, { -45, 127 }, { -15, 101 },
679 { -4, 76 }, { -6, 71 }, { -13, 79 }, { 5, 52 },
680 { 6, 69 }, { -13, 90 }, { 0, 52 }, { 8, 43 },
683 { -2, 69 },{ -5, 82 },{ -10, 96 },{ 2, 59 },
684 { 2, 75 },{ -3, 87 },{ -3, 100 },{ 1, 56 },
685 { -3, 74 },{ -6, 85 },{ 0, 59 },{ -3, 81 },
686 { -7, 86 },{ -5, 95 },
689 { -1, 66 },{ -1, 77 },{ 1, 70 },{ -2, 86 },
690 { -5, 72 },{ 0, 61 },
693 { 0, 41 }, { 0, 63 }, { 0, 63 }, { 0, 63 },
694 { -9, 83 }, { 4, 86 }, { 0, 97 }, { -7, 72 },
695 { 13, 41 }, { 3, 62 },
698 { 13, 15 }, { 7, 51 }, { 2, 80 }, { -39, 127 },
699 { -18, 91 }, { -17, 96 }, { -26, 81 }, { -35, 98 },
700 { -24, 102 }, { -23, 97 }, { -27, 119 }, { -24, 99 },
701 { -21, 110 }, { -18, 102 }, { -36, 127 }, { 0, 80 },
702 { -5, 89 }, { -7, 94 }, { -4, 92 }, { 0, 39 },
703 { 0, 65 }, { -15, 84 }, { -35, 127 }, { -2, 73 },
704 { -12, 104 }, { -9, 91 }, { -31, 127 }, { 3, 55 },
705 { 7, 56 }, { 7, 55 }, { 8, 61 }, { -3, 53 },
706 { 0, 68 }, { -7, 74 }, { -9, 88 },
709 { -13, 103 }, { -13, 91 }, { -9, 89 }, { -14, 92 },
710 { -8, 76 }, { -12, 87 }, { -23, 110 }, { -24, 105 },
711 { -10, 78 }, { -20, 112 }, { -17, 99 }, { -78, 127 },
712 { -70, 127 }, { -50, 127 }, { -46, 127 }, { -4, 66 },
713 { -5, 78 }, { -4, 71 }, { -8, 72 }, { 2, 59 },
714 { -1, 55 }, { -7, 70 }, { -6, 75 }, { -8, 89 },
715 { -34, 119 }, { -3, 75 }, { 32, 20 }, { 30, 22 },
716 { -44, 127 }, { 0, 54 }, { -5, 61 }, { 0, 58 },
717 { -1, 60 }, { -3, 61 }, { -8, 67 }, { -25, 84 },
718 { -14, 74 }, { -5, 65 }, { 5, 52 }, { 2, 57 },
719 { 0, 61 }, { -9, 69 }, { -11, 70 }, { 18, 55 },
720 { -4, 71 }, { 0, 58 }, { 7, 61 }, { 9, 41 },
721 { 18, 25 }, { 9, 32 }, { 5, 43 }, { 9, 47 },
722 { 0, 44 }, { 0, 51 }, { 2, 46 }, { 19, 38 },
723 { -4, 66 }, { 15, 38 }, { 12, 42 }, { 9, 34 },
727 { 4, 45 }, { 10, 28 }, { 10, 31 }, { 33, -11 },
728 { 52, -43 }, { 18, 15 }, { 28, 0 }, { 35, -22 },
729 { 38, -25 }, { 34, 0 }, { 39, -18 }, { 32, -12 },
730 { 102, -94 }, { 0, 0 }, { 56, -15 }, { 33, -4 },
731 { 29, 10 }, { 37, -5 }, { 51, -29 }, { 39, -9 },
732 { 52, -34 }, { 69, -58 }, { 67, -63 }, { 44, -5 },
733 { 32, 7 }, { 55, -29 }, { 32, 1 }, { 0, 0 },
734 { 27, 36 }, { 33, -25 }, { 34, -30 }, { 36, -28 },
735 { 38, -28 }, { 38, -27 }, { 34, -18 }, { 35, -16 },
736 { 34, -14 }, { 32, -8 }, { 37, -6 }, { 35, 0 },
737 { 30, 10 }, { 28, 18 }, { 26, 25 }, { 29, 41 },
738 { 0, 75 }, { 2, 72 }, { 8, 77 }, { 14, 35 },
739 { 18, 31 }, { 17, 35 }, { 21, 30 }, { 17, 45 },
740 { 20, 42 }, { 18, 45 }, { 27, 26 }, { 16, 54 },
741 { 7, 66 }, { 16, 56 }, { 11, 73 }, { 10, 67 },
745 { -23, 112 }, { -15, 71 }, { -7, 61 }, { 0, 53 },
746 { -5, 66 }, { -11, 77 }, { -9, 80 }, { -9, 84 },
747 { -10, 87 }, { -34, 127 }, { -21, 101 }, { -3, 39 },
748 { -5, 53 }, { -7, 61 }, { -11, 75 }, { -15, 77 },
749 { -17, 91 }, { -25, 107 }, { -25, 111 }, { -28, 122 },
750 { -11, 76 }, { -10, 44 }, { -10, 52 }, { -10, 57 },
751 { -9, 58 }, { -16, 72 }, { -7, 69 }, { -4, 69 },
752 { -5, 74 }, { -9, 86 }, { 2, 66 }, { -9, 34 },
753 { 1, 32 }, { 11, 31 }, { 5, 52 }, { -2, 55 },
754 { -2, 67 }, { 0, 73 }, { -8, 89 }, { 3, 52 },
755 { 7, 4 }, { 10, 8 }, { 17, 8 }, { 16, 19 },
756 { 3, 37 }, { -1, 61 }, { -5, 73 }, { -1, 70 },
759 /* 276 a bit special (not used, bypass is used instead) */
763 { -21, 126 }, { -23, 124 }, { -20, 110 }, { -26, 126 },
764 { -25, 124 }, { -17, 105 }, { -27, 121 }, { -27, 117 },
765 { -17, 102 }, { -26, 117 }, { -27, 116 }, { -33, 122 },
766 { -10, 95 }, { -14, 100 }, { -8, 95 }, { -17, 111 },
767 { -28, 114 }, { -6, 89 }, { -2, 80 }, { -4, 82 },
768 { -9, 85 }, { -8, 81 }, { -1, 72 }, { 5, 64 },
769 { 1, 67 }, { 9, 56 }, { 0, 69 }, { 1, 69 },
770 { 7, 69 }, { -7, 69 }, { -6, 67 }, { -16, 77 },
771 { -2, 64 }, { 2, 61 }, { -6, 67 }, { -3, 64 },
772 { 2, 57 }, { -3, 65 }, { -3, 66 }, { 0, 62 },
773 { 9, 51 }, { -1, 66 }, { -2, 71 }, { -2, 75 },
774 { -1, 70 }, { -9, 72 }, { 14, 60 }, { 16, 37 },
775 { 0, 47 }, { 18, 35 }, { 11, 37 }, { 12, 41 },
776 { 10, 41 }, { 2, 48 }, { 12, 41 }, { 13, 41 },
777 { 0, 59 }, { 3, 50 }, { 19, 40 }, { 3, 66 },
781 { 19, -6 }, { 18, -6 }, { 14, 0 }, { 26, -12 },
782 { 31, -16 }, { 33, -25 }, { 33, -22 }, { 37, -28 },
783 { 39, -30 }, { 42, -30 }, { 47, -42 }, { 45, -36 },
784 { 49, -34 }, { 41, -17 }, { 32, 9 }, { 69, -71 },
785 { 63, -63 }, { 66, -64 }, { 77, -74 }, { 54, -39 },
786 { 52, -35 }, { 41, -10 }, { 36, 0 }, { 40, -1 },
787 { 30, 14 }, { 28, 26 }, { 23, 37 }, { 12, 55 },
788 { 11, 65 }, { 37, -33 }, { 39, -36 }, { 40, -37 },
789 { 38, -30 }, { 46, -33 }, { 42, -30 }, { 40, -24 },
790 { 49, -29 }, { 38, -12 }, { 40, -10 }, { 38, -3 },
791 { 46, -5 }, { 31, 20 }, { 29, 30 }, { 25, 44 },
792 { 12, 48 }, { 11, 49 }, { 26, 45 }, { 22, 22 },
793 { 23, 22 }, { 27, 21 }, { 33, 20 }, { 26, 28 },
794 { 30, 24 }, { 27, 34 }, { 18, 42 }, { 25, 39 },
795 { 18, 50 }, { 12, 70 }, { 21, 54 }, { 14, 71 },
799 { 25, 32 }, { 21, 49 }, { 21, 54 },
800 { -5, 85 }, { -6, 81 }, { -10, 77 }, { -7, 81 },
801 { -17, 80 }, { -18, 73 }, { -4, 74 }, { -10, 83 },
802 { -9, 71 }, { -9, 67 }, { -1, 61 }, { -8, 66 },
803 { -14, 66 }, { 0, 59 }, { 2, 59 }, { 17, -10 },
804 { 32, -13 }, { 42, -9 }, { 49, -5 }, { 53, 0 },
805 { 64, 3 }, { 68, 10 }, { 66, 27 }, { 47, 57 },
806 { -5, 71 }, { 0, 24 }, { -1, 36 }, { -2, 42 },
807 { -2, 52 }, { -9, 57 }, { -6, 63 }, { -4, 65 },
808 { -4, 67 }, { -7, 82 },
811 { -3, 81 }, { -3, 76 }, { -7, 72 }, { -6, 78 },
812 { -12, 72 }, { -14, 68 }, { -3, 70 }, { -6, 76 },
813 { -5, 66 }, { -5, 62 }, { 0, 57 }, { -4, 61 },
814 { -9, 60 }, { 1, 54 }, { 2, 58 }, { 17, -10 },
815 { 32, -13 }, { 42, -9 }, { 49, -5 }, { 53, 0 },
816 { 64, 3 }, { 68, 10 }, { 66, 27 }, { 47, 57 },
819 { 0, 80 }, { -5, 89 }, { -7, 94 }, { -4, 92 },
820 { 0, 39 }, { 0, 65 }, { -15, 84 }, { -35, 127 },
821 { -2, 73 }, { -12, 104 }, { -9, 91 }, { -31, 127 },
822 { 0, 80 }, { -5, 89 }, { -7, 94 }, { -4, 92 },
823 { 0, 39 }, { 0, 65 }, { -15, 84 }, { -35, 127 },
824 { -2, 73 }, { -12, 104 }, { -9, 91 }, { -31, 127 },
825 { -13, 103 }, { -13, 91 }, { -9, 89 }, { -14, 92 },
826 { -8, 76 }, { -12, 87 }, { -23, 110 }, { -24, 105 },
827 { -10, 78 }, { -20, 112 }, { -17, 99 }, { -78, 127 },
828 { -70, 127 }, { -50, 127 }, { -46, 127 }, { -4, 66 },
829 { -5, 78 }, { -4, 71 }, { -8, 72 }, { 2, 59 },
830 { -1, 55 }, { -7, 70 }, { -6, 75 }, { -8, 89 },
831 { -34, 119 }, { -3, 75 }, { 32, 20 }, { 30, 22 },
832 { -44, 127 }, { 0, 54 }, { -5, 61 }, { 0, 58 },
833 { -1, 60 }, { -3, 61 }, { -8, 67 }, { -25, 84 },
834 { -14, 74 }, { -5, 65 }, { 5, 52 }, { 2, 57 },
835 { 0, 61 }, { -9, 69 }, { -11, 70 }, { 18, 55 },
836 { -13, 103 }, { -13, 91 }, { -9, 89 }, { -14, 92 },
837 { -8, 76 }, { -12, 87 }, { -23, 110 }, { -24, 105 },
838 { -10, 78 }, { -20, 112 }, { -17, 99 }, { -78, 127 },
839 { -70, 127 }, { -50, 127 }, { -46, 127 }, { -4, 66 },
840 { -5, 78 }, { -4, 71 }, { -8, 72 }, { 2, 59 },
841 { -1, 55 }, { -7, 70 }, { -6, 75 }, { -8, 89 },
842 { -34, 119 }, { -3, 75 }, { 32, 20 }, { 30, 22 },
843 { -44, 127 }, { 0, 54 }, { -5, 61 }, { 0, 58 },
844 { -1, 60 }, { -3, 61 }, { -8, 67 }, { -25, 84 },
845 { -14, 74 }, { -5, 65 }, { 5, 52 }, { 2, 57 },
846 { 0, 61 }, { -9, 69 }, { -11, 70 }, { 18, 55 },
847 { 4, 45 }, { 10, 28 }, { 10, 31 }, { 33, -11 },
848 { 52, -43 }, { 18, 15 }, { 28, 0 }, { 35, -22 },
849 { 38, -25 }, { 34, 0 }, { 39, -18 }, { 32, -12 },
850 { 102, -94 }, { 0, 0 }, { 56, -15 }, { 33, -4 },
851 { 29, 10 }, { 37, -5 }, { 51, -29 }, { 39, -9 },
852 { 52, -34 }, { 69, -58 }, { 67, -63 }, { 44, -5 },
853 { 32, 7 }, { 55, -29 }, { 32, 1 }, { 0, 0 },
854 { 27, 36 }, { 33, -25 }, { 34, -30 }, { 36, -28 },
855 { 38, -28 }, { 38, -27 }, { 34, -18 }, { 35, -16 },
856 { 34, -14 }, { 32, -8 }, { 37, -6 }, { 35, 0 },
857 { 30, 10 }, { 28, 18 }, { 26, 25 }, { 29, 41 },
858 { 4, 45 }, { 10, 28 }, { 10, 31 }, { 33, -11 },
859 { 52, -43 }, { 18, 15 }, { 28, 0 }, { 35, -22 },
860 { 38, -25 }, { 34, 0 }, { 39, -18 }, { 32, -12 },
861 { 102, -94 }, { 0, 0 }, { 56, -15 }, { 33, -4 },
862 { 29, 10 }, { 37, -5 }, { 51, -29 }, { 39, -9 },
863 { 52, -34 }, { 69, -58 }, { 67, -63 }, { 44, -5 },
864 { 32, 7 }, { 55, -29 }, { 32, 1 }, { 0, 0 },
865 { 27, 36 }, { 33, -25 }, { 34, -30 }, { 36, -28 },
866 { 38, -28 }, { 38, -27 }, { 34, -18 }, { 35, -16 },
867 { 34, -14 }, { 32, -8 }, { 37, -6 }, { 35, 0 },
868 { 30, 10 }, { 28, 18 }, { 26, 25 }, { 29, 41 },
869 { -5, 85 }, { -6, 81 }, { -10, 77 }, { -7, 81 },
870 { -17, 80 }, { -18, 73 }, { -4, 74 }, { -10, 83 },
871 { -9, 71 }, { -9, 67 }, { -1, 61 }, { -8, 66 },
872 { -14, 66 }, { 0, 59 }, { 2, 59 }, { -3, 81 },
873 { -3, 76 }, { -7, 72 }, { -6, 78 }, { -12, 72 },
874 { -14, 68 }, { -3, 70 }, { -6, 76 }, { -5, 66 },
875 { -5, 62 }, { 0, 57 }, { -4, 61 }, { -9, 60 },
876 { 1, 54 }, { 2, 58 }, { 17, -10 }, { 32, -13 },
877 { 42, -9 }, { 49, -5 }, { 53, 0 }, { 64, 3 },
878 { 68, 10 }, { 66, 27 }, { 47, 57 }, { 17, -10 },
879 { 32, -13 }, { 42, -9 }, { 49, -5 }, { 53, 0 },
880 { 64, 3 }, { 68, 10 }, { 66, 27 }, { 47, 57 },
881 { -5, 71 }, { 0, 24 }, { -1, 36 }, { -2, 42 },
882 { -2, 52 }, { -9, 57 }, { -6, 63 }, { -4, 65 },
883 { -4, 67 }, { -7, 82 }, { -5, 85 }, { -6, 81 },
884 { -10, 77 }, { -7, 81 }, { -17, 80 }, { -18, 73 },
885 { -4, 74 }, { -10, 83 }, { -9, 71 }, { -9, 67 },
886 { -1, 61 }, { -8, 66 }, { -14, 66 }, { 0, 59 },
887 { 2, 59 }, { -3, 81 }, { -3, 76 }, { -7, 72 },
888 { -6, 78 }, { -12, 72 }, { -14, 68 }, { -3, 70 },
889 { -6, 76 }, { -5, 66 }, { -5, 62 }, { 0, 57 },
890 { -4, 61 }, { -9, 60 }, { 1, 54 }, { 2, 58 },
891 { 17, -10 }, { 32, -13 }, { 42, -9 }, { 49, -5 },
892 { 53, 0 }, { 64, 3 }, { 68, 10 }, { 66, 27 },
893 { 47, 57 }, { 17, -10 }, { 32, -13 }, { 42, -9 },
894 { 49, -5 }, { 53, 0 }, { 64, 3 }, { 68, 10 },
895 { 66, 27 }, { 47, 57 }, { -5, 71 }, { 0, 24 },
896 { -1, 36 }, { -2, 42 }, { -2, 52 }, { -9, 57 },
897 { -6, 63 }, { -4, 65 }, { -4, 67 }, { -7, 82 },
898 { -21, 126 }, { -23, 124 }, { -20, 110 }, { -26, 126 },
899 { -25, 124 }, { -17, 105 }, { -27, 121 }, { -27, 117 },
900 { -17, 102 }, { -26, 117 }, { -27, 116 }, { -33, 122 },
901 { -10, 95 }, { -14, 100 }, { -8, 95 }, { -17, 111 },
902 { -28, 114 }, { -6, 89 }, { -2, 80 }, { -4, 82 },
903 { -9, 85 }, { -8, 81 }, { -1, 72 }, { 5, 64 },
904 { 1, 67 }, { 9, 56 }, { 0, 69 }, { 1, 69 },
905 { 7, 69 }, { -7, 69 }, { -6, 67 }, { -16, 77 },
906 { -2, 64 }, { 2, 61 }, { -6, 67 }, { -3, 64 },
907 { 2, 57 }, { -3, 65 }, { -3, 66 }, { 0, 62 },
908 { 9, 51 }, { -1, 66 }, { -2, 71 }, { -2, 75 },
909 { -21, 126 }, { -23, 124 }, { -20, 110 }, { -26, 126 },
910 { -25, 124 }, { -17, 105 }, { -27, 121 }, { -27, 117 },
911 { -17, 102 }, { -26, 117 }, { -27, 116 }, { -33, 122 },
912 { -10, 95 }, { -14, 100 }, { -8, 95 }, { -17, 111 },
913 { -28, 114 }, { -6, 89 }, { -2, 80 }, { -4, 82 },
914 { -9, 85 }, { -8, 81 }, { -1, 72 }, { 5, 64 },
915 { 1, 67 }, { 9, 56 }, { 0, 69 }, { 1, 69 },
916 { 7, 69 }, { -7, 69 }, { -6, 67 }, { -16, 77 },
917 { -2, 64 }, { 2, 61 }, { -6, 67 }, { -3, 64 },
918 { 2, 57 }, { -3, 65 }, { -3, 66 }, { 0, 62 },
919 { 9, 51 }, { -1, 66 }, { -2, 71 }, { -2, 75 },
920 { 19, -6 }, { 18, -6 }, { 14, 0 }, { 26, -12 },
921 { 31, -16 }, { 33, -25 }, { 33, -22 }, { 37, -28 },
922 { 39, -30 }, { 42, -30 }, { 47, -42 }, { 45, -36 },
923 { 49, -34 }, { 41, -17 }, { 32, 9 }, { 69, -71 },
924 { 63, -63 }, { 66, -64 }, { 77, -74 }, { 54, -39 },
925 { 52, -35 }, { 41, -10 }, { 36, 0 }, { 40, -1 },
926 { 30, 14 }, { 28, 26 }, { 23, 37 }, { 12, 55 },
927 { 11, 65 }, { 37, -33 }, { 39, -36 }, { 40, -37 },
928 { 38, -30 }, { 46, -33 }, { 42, -30 }, { 40, -24 },
929 { 49, -29 }, { 38, -12 }, { 40, -10 }, { 38, -3 },
930 { 46, -5 }, { 31, 20 }, { 29, 30 }, { 25, 44 },
931 { 19, -6 }, { 18, -6 }, { 14, 0 }, { 26, -12 },
932 { 31, -16 }, { 33, -25 }, { 33, -22 }, { 37, -28 },
933 { 39, -30 }, { 42, -30 }, { 47, -42 }, { 45, -36 },
934 { 49, -34 }, { 41, -17 }, { 32, 9 }, { 69, -71 },
935 { 63, -63 }, { 66, -64 }, { 77, -74 }, { 54, -39 },
936 { 52, -35 }, { 41, -10 }, { 36, 0 }, { 40, -1 },
937 { 30, 14 }, { 28, 26 }, { 23, 37 }, { 12, 55 },
938 { 11, 65 }, { 37, -33 }, { 39, -36 }, { 40, -37 },
939 { 38, -30 }, { 46, -33 }, { 42, -30 }, { 40, -24 },
940 { 49, -29 }, { 38, -12 }, { 40, -10 }, { 38, -3 },
941 { 46, -5 }, { 31, 20 }, { 29, 30 }, { 25, 44 },
942 { -23, 112 }, { -15, 71 }, { -7, 61 }, { 0, 53 },
943 { -5, 66 }, { -11, 77 }, { -9, 80 }, { -9, 84 },
944 { -10, 87 }, { -34, 127 }, { -21, 101 }, { -3, 39 },
945 { -5, 53 }, { -7, 61 }, { -11, 75 }, { -15, 77 },
946 { -17, 91 }, { -25, 107 }, { -25, 111 }, { -28, 122 },
947 { -11, 76 }, { -10, 44 }, { -10, 52 }, { -10, 57 },
948 { -9, 58 }, { -16, 72 }, { -7, 69 }, { -4, 69 },
949 { -5, 74 }, { -9, 86 }, { -23, 112 }, { -15, 71 },
950 { -7, 61 }, { 0, 53 }, { -5, 66 }, { -11, 77 },
951 { -9, 80 }, { -9, 84 }, { -10, 87 }, { -34, 127 },
952 { -21, 101 }, { -3, 39 }, { -5, 53 }, { -7, 61 },
953 { -11, 75 }, { -15, 77 }, { -17, 91 }, { -25, 107 },
954 { -25, 111 }, { -28, 122 }, { -11, 76 }, { -10, 44 },
955 { -10, 52 }, { -10, 57 }, { -9, 58 }, { -16, 72 },
956 { -7, 69 }, { -4, 69 }, { -5, 74 }, { -9, 86 },
957 { -2, 73 }, { -12, 104 }, { -9, 91 }, { -31, 127 },
958 { -2, 73 }, { -12, 104 }, { -9, 91 }, { -31, 127 },
959 { -2, 73 }, { -12, 104 }, { -9, 91 }, { -31, 127 }
962 /* i_cabac_init_idc == 2 */
965 { 20, -15 }, { 2, 54 }, { 3, 74 }, { 20, -15 },
966 { 2, 54 }, { 3, 74 }, { -28, 127 }, { -23, 104 },
967 { -6, 53 }, { -1, 54 }, { 7, 51 },
970 { 29, 16 }, { 25, 0 }, { 14, 0 }, { -10, 51 },
971 { -3, 62 }, { -27, 99 }, { 26, 16 }, { -4, 85 },
972 { -24, 102 }, { 5, 57 }, { 6, 57 }, { -17, 73 },
976 { 20, 40 }, { 20, 10 }, { 29, 0 }, { 54, 0 },
977 { 37, 42 }, { 12, 97 }, { -32, 127 }, { -22, 117 },
978 { -2, 74 }, { -4, 85 }, { -24, 102 }, { 5, 57 },
979 { -6, 93 }, { -14, 88 }, { -6, 44 }, { 4, 55 },
982 { -11, 89 },{ -15, 103 },{ -21, 116 },{ 19, 57 },
983 { 20, 58 },{ 4, 84 },{ 6, 96 },{ 1, 63 },
984 { -5, 85 },{ -13, 106 },{ 5, 63 },{ 6, 75 },
985 { -3, 90 },{ -1, 101 },
988 { 3, 55 },{ -4, 79 },{ -2, 75 },{ -12, 97 },
989 { -7, 50 },{ 1, 60 },
992 { 0, 41 }, { 0, 63 }, { 0, 63 }, { 0, 63 },
993 { -9, 83 }, { 4, 86 }, { 0, 97 }, { -7, 72 },
994 { 13, 41 }, { 3, 62 },
997 { 7, 34 }, { -9, 88 }, { -20, 127 }, { -36, 127 },
998 { -17, 91 }, { -14, 95 }, { -25, 84 }, { -25, 86 },
999 { -12, 89 }, { -17, 91 }, { -31, 127 }, { -14, 76 },
1000 { -18, 103 }, { -13, 90 }, { -37, 127 }, { 11, 80 },
1001 { 5, 76 }, { 2, 84 }, { 5, 78 }, { -6, 55 },
1002 { 4, 61 }, { -14, 83 }, { -37, 127 }, { -5, 79 },
1003 { -11, 104 }, { -11, 91 }, { -30, 127 }, { 0, 65 },
1004 { -2, 79 }, { 0, 72 }, { -4, 92 }, { -6, 56 },
1005 { 3, 68 }, { -8, 71 }, { -13, 98 },
1008 { -4, 86 }, { -12, 88 }, { -5, 82 }, { -3, 72 },
1009 { -4, 67 }, { -8, 72 }, { -16, 89 }, { -9, 69 },
1010 { -1, 59 }, { 5, 66 }, { 4, 57 }, { -4, 71 },
1011 { -2, 71 }, { 2, 58 }, { -1, 74 }, { -4, 44 },
1012 { -1, 69 }, { 0, 62 }, { -7, 51 }, { -4, 47 },
1013 { -6, 42 }, { -3, 41 }, { -6, 53 }, { 8, 76 },
1014 { -9, 78 }, { -11, 83 }, { 9, 52 }, { 0, 67 },
1015 { -5, 90 }, { 1, 67 }, { -15, 72 }, { -5, 75 },
1016 { -8, 80 }, { -21, 83 }, { -21, 64 }, { -13, 31 },
1017 { -25, 64 }, { -29, 94 }, { 9, 75 }, { 17, 63 },
1018 { -8, 74 }, { -5, 35 }, { -2, 27 }, { 13, 91 },
1019 { 3, 65 }, { -7, 69 }, { 8, 77 }, { -10, 66 },
1020 { 3, 62 }, { -3, 68 }, { -20, 81 }, { 0, 30 },
1021 { 1, 7 }, { -3, 23 }, { -21, 74 }, { 16, 66 },
1022 { -23, 124 }, { 17, 37 }, { 44, -18 }, { 50, -34 },
1026 { 4, 39 }, { 0, 42 }, { 7, 34 }, { 11, 29 },
1027 { 8, 31 }, { 6, 37 }, { 7, 42 }, { 3, 40 },
1028 { 8, 33 }, { 13, 43 }, { 13, 36 }, { 4, 47 },
1029 { 3, 55 }, { 2, 58 }, { 6, 60 }, { 8, 44 },
1030 { 11, 44 }, { 14, 42 }, { 7, 48 }, { 4, 56 },
1031 { 4, 52 }, { 13, 37 }, { 9, 49 }, { 19, 58 },
1032 { 10, 48 }, { 12, 45 }, { 0, 69 }, { 20, 33 },
1033 { 8, 63 }, { 35, -18 }, { 33, -25 }, { 28, -3 },
1034 { 24, 10 }, { 27, 0 }, { 34, -14 }, { 52, -44 },
1035 { 39, -24 }, { 19, 17 }, { 31, 25 }, { 36, 29 },
1036 { 24, 33 }, { 34, 15 }, { 30, 20 }, { 22, 73 },
1037 { 20, 34 }, { 19, 31 }, { 27, 44 }, { 19, 16 },
1038 { 15, 36 }, { 15, 36 }, { 21, 28 }, { 25, 21 },
1039 { 30, 20 }, { 31, 12 }, { 27, 16 }, { 24, 42 },
1040 { 0, 93 }, { 14, 56 }, { 15, 57 }, { 26, 38 },
1044 { -24, 115 }, { -22, 82 }, { -9, 62 }, { 0, 53 },
1045 { 0, 59 }, { -14, 85 }, { -13, 89 }, { -13, 94 },
1046 { -11, 92 }, { -29, 127 }, { -21, 100 }, { -14, 57 },
1047 { -12, 67 }, { -11, 71 }, { -10, 77 }, { -21, 85 },
1048 { -16, 88 }, { -23, 104 }, { -15, 98 }, { -37, 127 },
1049 { -10, 82 }, { -8, 48 }, { -8, 61 }, { -8, 66 },
1050 { -7, 70 }, { -14, 75 }, { -10, 79 }, { -9, 83 },
1051 { -12, 92 }, { -18, 108 }, { -4, 79 }, { -22, 69 },
1052 { -16, 75 }, { -2, 58 }, { 1, 58 }, { -13, 78 },
1053 { -9, 83 }, { -4, 81 }, { -13, 99 }, { -13, 81 },
1054 { -6, 38 }, { -13, 62 }, { -6, 58 }, { -2, 59 },
1055 { -16, 73 }, { -10, 76 }, { -13, 86 }, { -9, 83 },
1058 /* 276 a bit special (not used, bypass is used instead) */
1062 { -22, 127 }, { -25, 127 }, { -25, 120 }, { -27, 127 },
1063 { -19, 114 }, { -23, 117 }, { -25, 118 }, { -26, 117 },
1064 { -24, 113 }, { -28, 118 }, { -31, 120 }, { -37, 124 },
1065 { -10, 94 }, { -15, 102 }, { -10, 99 }, { -13, 106 },
1066 { -50, 127 }, { -5, 92 }, { 17, 57 }, { -5, 86 },
1067 { -13, 94 }, { -12, 91 }, { -2, 77 }, { 0, 71 },
1068 { -1, 73 }, { 4, 64 }, { -7, 81 }, { 5, 64 },
1069 { 15, 57 }, { 1, 67 }, { 0, 68 }, { -10, 67 },
1070 { 1, 68 }, { 0, 77 }, { 2, 64 }, { 0, 68 },
1071 { -5, 78 }, { 7, 55 }, { 5, 59 }, { 2, 65 },
1072 { 14, 54 }, { 15, 44 }, { 5, 60 }, { 2, 70 },
1073 { -2, 76 }, { -18, 86 }, { 12, 70 }, { 5, 64 },
1074 { -12, 70 }, { 11, 55 }, { 5, 56 }, { 0, 69 },
1075 { 2, 65 }, { -6, 74 }, { 5, 54 }, { 7, 54 },
1076 { -6, 76 }, { -11, 82 }, { -2, 77 }, { -2, 77 },
1080 { 17, -13 }, { 16, -9 }, { 17, -12 }, { 27, -21 },
1081 { 37, -30 }, { 41, -40 }, { 42, -41 }, { 48, -47 },
1082 { 39, -32 }, { 46, -40 }, { 52, -51 }, { 46, -41 },
1083 { 52, -39 }, { 43, -19 }, { 32, 11 }, { 61, -55 },
1084 { 56, -46 }, { 62, -50 }, { 81, -67 }, { 45, -20 },
1085 { 35, -2 }, { 28, 15 }, { 34, 1 }, { 39, 1 },
1086 { 30, 17 }, { 20, 38 }, { 18, 45 }, { 15, 54 },
1087 { 0, 79 }, { 36, -16 }, { 37, -14 }, { 37, -17 },
1088 { 32, 1 }, { 34, 15 }, { 29, 15 }, { 24, 25 },
1089 { 34, 22 }, { 31, 16 }, { 35, 18 }, { 31, 28 },
1090 { 33, 41 }, { 36, 28 }, { 27, 47 }, { 21, 62 },
1091 { 18, 31 }, { 19, 26 }, { 36, 24 }, { 24, 23 },
1092 { 27, 16 }, { 24, 30 }, { 31, 29 }, { 22, 41 },
1093 { 22, 42 }, { 16, 60 }, { 15, 52 }, { 14, 60 },
1094 { 3, 78 }, { -16, 123 }, { 21, 53 }, { 22, 56 },
1098 { 21, 33 }, { 19, 50 }, { 17, 61 },
1099 { -3, 78 }, { -8, 74 }, { -9, 72 }, { -10, 72 },
1100 { -18, 75 }, { -12, 71 }, { -11, 63 }, { -5, 70 },
1101 { -17, 75 }, { -14, 72 }, { -16, 67 }, { -8, 53 },
1102 { -14, 59 }, { -9, 52 }, { -11, 68 }, { 9, -2 },
1103 { 30, -10 }, { 31, -4 }, { 33, -1 }, { 33, 7 },
1104 { 31, 12 }, { 37, 23 }, { 31, 38 }, { 20, 64 },
1105 { -9, 71 }, { -7, 37 }, { -8, 44 }, { -11, 49 },
1106 { -10, 56 }, { -12, 59 }, { -8, 63 }, { -9, 67 },
1107 { -6, 68 }, { -10, 79 },
1110 { -3, 78 }, { -8, 74 }, { -9, 72 }, { -10, 72 },
1111 { -18, 75 }, { -12, 71 }, { -11, 63 }, { -5, 70 },
1112 { -17, 75 }, { -14, 72 }, { -16, 67 }, { -8, 53 },
1113 { -14, 59 }, { -9, 52 }, { -11, 68 }, { 9, -2 },
1114 { 30, -10 }, { 31, -4 }, { 33, -1 }, { 33, 7 },
1115 { 31, 12 }, { 37, 23 }, { 31, 38 }, { 20, 64 },
1118 { 11, 80 }, { 5, 76 }, { 2, 84 }, { 5, 78 },
1119 { -6, 55 }, { 4, 61 }, { -14, 83 }, { -37, 127 },
1120 { -5, 79 }, { -11, 104 }, { -11, 91 }, { -30, 127 },
1121 { 11, 80 }, { 5, 76 }, { 2, 84 }, { 5, 78 },
1122 { -6, 55 }, { 4, 61 }, { -14, 83 }, { -37, 127 },
1123 { -5, 79 }, { -11, 104 }, { -11, 91 }, { -30, 127 },
1124 { -4, 86 }, { -12, 88 }, { -5, 82 }, { -3, 72 },
1125 { -4, 67 }, { -8, 72 }, { -16, 89 }, { -9, 69 },
1126 { -1, 59 }, { 5, 66 }, { 4, 57 }, { -4, 71 },
1127 { -2, 71 }, { 2, 58 }, { -1, 74 }, { -4, 44 },
1128 { -1, 69 }, { 0, 62 }, { -7, 51 }, { -4, 47 },
1129 { -6, 42 }, { -3, 41 }, { -6, 53 }, { 8, 76 },
1130 { -9, 78 }, { -11, 83 }, { 9, 52 }, { 0, 67 },
1131 { -5, 90 }, { 1, 67 }, { -15, 72 }, { -5, 75 },
1132 { -8, 80 }, { -21, 83 }, { -21, 64 }, { -13, 31 },
1133 { -25, 64 }, { -29, 94 }, { 9, 75 }, { 17, 63 },
1134 { -8, 74 }, { -5, 35 }, { -2, 27 }, { 13, 91 },
1135 { -4, 86 }, { -12, 88 }, { -5, 82 }, { -3, 72 },
1136 { -4, 67 }, { -8, 72 }, { -16, 89 }, { -9, 69 },
1137 { -1, 59 }, { 5, 66 }, { 4, 57 }, { -4, 71 },
1138 { -2, 71 }, { 2, 58 }, { -1, 74 }, { -4, 44 },
1139 { -1, 69 }, { 0, 62 }, { -7, 51 }, { -4, 47 },
1140 { -6, 42 }, { -3, 41 }, { -6, 53 }, { 8, 76 },
1141 { -9, 78 }, { -11, 83 }, { 9, 52 }, { 0, 67 },
1142 { -5, 90 }, { 1, 67 }, { -15, 72 }, { -5, 75 },
1143 { -8, 80 }, { -21, 83 }, { -21, 64 }, { -13, 31 },
1144 { -25, 64 }, { -29, 94 }, { 9, 75 }, { 17, 63 },
1145 { -8, 74 }, { -5, 35 }, { -2, 27 }, { 13, 91 },
1146 { 4, 39 }, { 0, 42 }, { 7, 34 }, { 11, 29 },
1147 { 8, 31 }, { 6, 37 }, { 7, 42 }, { 3, 40 },
1148 { 8, 33 }, { 13, 43 }, { 13, 36 }, { 4, 47 },
1149 { 3, 55 }, { 2, 58 }, { 6, 60 }, { 8, 44 },
1150 { 11, 44 }, { 14, 42 }, { 7, 48 }, { 4, 56 },
1151 { 4, 52 }, { 13, 37 }, { 9, 49 }, { 19, 58 },
1152 { 10, 48 }, { 12, 45 }, { 0, 69 }, { 20, 33 },
1153 { 8, 63 }, { 35, -18 }, { 33, -25 }, { 28, -3 },
1154 { 24, 10 }, { 27, 0 }, { 34, -14 }, { 52, -44 },
1155 { 39, -24 }, { 19, 17 }, { 31, 25 }, { 36, 29 },
1156 { 24, 33 }, { 34, 15 }, { 30, 20 }, { 22, 73 },
1157 { 4, 39 }, { 0, 42 }, { 7, 34 }, { 11, 29 },
1158 { 8, 31 }, { 6, 37 }, { 7, 42 }, { 3, 40 },
1159 { 8, 33 }, { 13, 43 }, { 13, 36 }, { 4, 47 },
1160 { 3, 55 }, { 2, 58 }, { 6, 60 }, { 8, 44 },
1161 { 11, 44 }, { 14, 42 }, { 7, 48 }, { 4, 56 },
1162 { 4, 52 }, { 13, 37 }, { 9, 49 }, { 19, 58 },
1163 { 10, 48 }, { 12, 45 }, { 0, 69 }, { 20, 33 },
1164 { 8, 63 }, { 35, -18 }, { 33, -25 }, { 28, -3 },
1165 { 24, 10 }, { 27, 0 }, { 34, -14 }, { 52, -44 },
1166 { 39, -24 }, { 19, 17 }, { 31, 25 }, { 36, 29 },
1167 { 24, 33 }, { 34, 15 }, { 30, 20 }, { 22, 73 },
1168 { -3, 78 }, { -8, 74 }, { -9, 72 }, { -10, 72 },
1169 { -18, 75 }, { -12, 71 }, { -11, 63 }, { -5, 70 },
1170 { -17, 75 }, { -14, 72 }, { -16, 67 }, { -8, 53 },
1171 { -14, 59 }, { -9, 52 }, { -11, 68 }, { -3, 78 },
1172 { -8, 74 }, { -9, 72 }, { -10, 72 }, { -18, 75 },
1173 { -12, 71 }, { -11, 63 }, { -5, 70 }, { -17, 75 },
1174 { -14, 72 }, { -16, 67 }, { -8, 53 }, { -14, 59 },
1175 { -9, 52 }, { -11, 68 }, { 9, -2 }, { 30, -10 },
1176 { 31, -4 }, { 33, -1 }, { 33, 7 }, { 31, 12 },
1177 { 37, 23 }, { 31, 38 }, { 20, 64 }, { 9, -2 },
1178 { 30, -10 }, { 31, -4 }, { 33, -1 }, { 33, 7 },
1179 { 31, 12 }, { 37, 23 }, { 31, 38 }, { 20, 64 },
1180 { -9, 71 }, { -7, 37 }, { -8, 44 }, { -11, 49 },
1181 { -10, 56 }, { -12, 59 }, { -8, 63 }, { -9, 67 },
1182 { -6, 68 }, { -10, 79 }, { -3, 78 }, { -8, 74 },
1183 { -9, 72 }, { -10, 72 }, { -18, 75 }, { -12, 71 },
1184 { -11, 63 }, { -5, 70 }, { -17, 75 }, { -14, 72 },
1185 { -16, 67 }, { -8, 53 }, { -14, 59 }, { -9, 52 },
1186 { -11, 68 }, { -3, 78 }, { -8, 74 }, { -9, 72 },
1187 { -10, 72 }, { -18, 75 }, { -12, 71 }, { -11, 63 },
1188 { -5, 70 }, { -17, 75 }, { -14, 72 }, { -16, 67 },
1189 { -8, 53 }, { -14, 59 }, { -9, 52 }, { -11, 68 },
1190 { 9, -2 }, { 30, -10 }, { 31, -4 }, { 33, -1 },
1191 { 33, 7 }, { 31, 12 }, { 37, 23 }, { 31, 38 },
1192 { 20, 64 }, { 9, -2 }, { 30, -10 }, { 31, -4 },
1193 { 33, -1 }, { 33, 7 }, { 31, 12 }, { 37, 23 },
1194 { 31, 38 }, { 20, 64 }, { -9, 71 }, { -7, 37 },
1195 { -8, 44 }, { -11, 49 }, { -10, 56 }, { -12, 59 },
1196 { -8, 63 }, { -9, 67 }, { -6, 68 }, { -10, 79 },
1197 { -22, 127 }, { -25, 127 }, { -25, 120 }, { -27, 127 },
1198 { -19, 114 }, { -23, 117 }, { -25, 118 }, { -26, 117 },
1199 { -24, 113 }, { -28, 118 }, { -31, 120 }, { -37, 124 },
1200 { -10, 94 }, { -15, 102 }, { -10, 99 }, { -13, 106 },
1201 { -50, 127 }, { -5, 92 }, { 17, 57 }, { -5, 86 },
1202 { -13, 94 }, { -12, 91 }, { -2, 77 }, { 0, 71 },
1203 { -1, 73 }, { 4, 64 }, { -7, 81 }, { 5, 64 },
1204 { 15, 57 }, { 1, 67 }, { 0, 68 }, { -10, 67 },
1205 { 1, 68 }, { 0, 77 }, { 2, 64 }, { 0, 68 },
1206 { -5, 78 }, { 7, 55 }, { 5, 59 }, { 2, 65 },
1207 { 14, 54 }, { 15, 44 }, { 5, 60 }, { 2, 70 },
1208 { -22, 127 }, { -25, 127 }, { -25, 120 }, { -27, 127 },
1209 { -19, 114 }, { -23, 117 }, { -25, 118 }, { -26, 117 },
1210 { -24, 113 }, { -28, 118 }, { -31, 120 }, { -37, 124 },
1211 { -10, 94 }, { -15, 102 }, { -10, 99 }, { -13, 106 },
1212 { -50, 127 }, { -5, 92 }, { 17, 57 }, { -5, 86 },
1213 { -13, 94 }, { -12, 91 }, { -2, 77 }, { 0, 71 },
1214 { -1, 73 }, { 4, 64 }, { -7, 81 }, { 5, 64 },
1215 { 15, 57 }, { 1, 67 }, { 0, 68 }, { -10, 67 },
1216 { 1, 68 }, { 0, 77 }, { 2, 64 }, { 0, 68 },
1217 { -5, 78 }, { 7, 55 }, { 5, 59 }, { 2, 65 },
1218 { 14, 54 }, { 15, 44 }, { 5, 60 }, { 2, 70 },
1219 { 17, -13 }, { 16, -9 }, { 17, -12 }, { 27, -21 },
1220 { 37, -30 }, { 41, -40 }, { 42, -41 }, { 48, -47 },
1221 { 39, -32 }, { 46, -40 }, { 52, -51 }, { 46, -41 },
1222 { 52, -39 }, { 43, -19 }, { 32, 11 }, { 61, -55 },
1223 { 56, -46 }, { 62, -50 }, { 81, -67 }, { 45, -20 },
1224 { 35, -2 }, { 28, 15 }, { 34, 1 }, { 39, 1 },
1225 { 30, 17 }, { 20, 38 }, { 18, 45 }, { 15, 54 },
1226 { 0, 79 }, { 36, -16 }, { 37, -14 }, { 37, -17 },
1227 { 32, 1 }, { 34, 15 }, { 29, 15 }, { 24, 25 },
1228 { 34, 22 }, { 31, 16 }, { 35, 18 }, { 31, 28 },
1229 { 33, 41 }, { 36, 28 }, { 27, 47 }, { 21, 62 },
1230 { 17, -13 }, { 16, -9 }, { 17, -12 }, { 27, -21 },
1231 { 37, -30 }, { 41, -40 }, { 42, -41 }, { 48, -47 },
1232 { 39, -32 }, { 46, -40 }, { 52, -51 }, { 46, -41 },
1233 { 52, -39 }, { 43, -19 }, { 32, 11 }, { 61, -55 },
1234 { 56, -46 }, { 62, -50 }, { 81, -67 }, { 45, -20 },
1235 { 35, -2 }, { 28, 15 }, { 34, 1 }, { 39, 1 },
1236 { 30, 17 }, { 20, 38 }, { 18, 45 }, { 15, 54 },
1237 { 0, 79 }, { 36, -16 }, { 37, -14 }, { 37, -17 },
1238 { 32, 1 }, { 34, 15 }, { 29, 15 }, { 24, 25 },
1239 { 34, 22 }, { 31, 16 }, { 35, 18 }, { 31, 28 },
1240 { 33, 41 }, { 36, 28 }, { 27, 47 }, { 21, 62 },
1241 { -24, 115 }, { -22, 82 }, { -9, 62 }, { 0, 53 },
1242 { 0, 59 }, { -14, 85 }, { -13, 89 }, { -13, 94 },
1243 { -11, 92 }, { -29, 127 }, { -21, 100 }, { -14, 57 },
1244 { -12, 67 }, { -11, 71 }, { -10, 77 }, { -21, 85 },
1245 { -16, 88 }, { -23, 104 }, { -15, 98 }, { -37, 127 },
1246 { -10, 82 }, { -8, 48 }, { -8, 61 }, { -8, 66 },
1247 { -7, 70 }, { -14, 75 }, { -10, 79 }, { -9, 83 },
1248 { -12, 92 }, { -18, 108 }, { -24, 115 }, { -22, 82 },
1249 { -9, 62 }, { 0, 53 }, { 0, 59 }, { -14, 85 },
1250 { -13, 89 }, { -13, 94 }, { -11, 92 }, { -29, 127 },
1251 { -21, 100 }, { -14, 57 }, { -12, 67 }, { -11, 71 },
1252 { -10, 77 }, { -21, 85 }, { -16, 88 }, { -23, 104 },
1253 { -15, 98 }, { -37, 127 }, { -10, 82 }, { -8, 48 },
1254 { -8, 61 }, { -8, 66 }, { -7, 70 }, { -14, 75 },
1255 { -10, 79 }, { -9, 83 }, { -12, 92 }, { -18, 108 },
1256 { -5, 79 }, { -11, 104 }, { -11, 91 }, { -30, 127 },
1257 { -5, 79 }, { -11, 104 }, { -11, 91 }, { -30, 127 },
1258 { -5, 79 }, { -11, 104 }, { -11, 91 }, { -30, 127 }
1262 void ff_h264_init_cabac_states(H264Context *h) {
1264 const int8_t (*tab)[2];
1265 const int slice_qp = av_clip(h->qscale - 6*(h->sps.bit_depth_luma-8), 0, 51);
1267 if( h->slice_type_nos == AV_PICTURE_TYPE_I ) tab = cabac_context_init_I;
1268 else tab = cabac_context_init_PB[h->cabac_init_idc];
1270 /* calculate pre-state */
1271 for( i= 0; i < 1024; i++ ) {
1272 int pre = 2*(((tab[i][0] * slice_qp) >>4 ) + tab[i][1]) - 127;
1278 h->cabac_state[i] = pre;
1282 static int decode_cabac_field_decoding_flag(H264Context *h) {
1283 const long mbb_xy = h->mb_xy - 2L*h->mb_stride;
1285 unsigned long ctx = 0;
1287 ctx += h->mb_field_decoding_flag & !!h->mb_x; //for FMO:(s->current_picture.mb_type[mba_xy] >> 7) & (h->slice_table[mba_xy] == h->slice_num);
1288 ctx += (h->cur_pic.mb_type[mbb_xy] >> 7) & (h->slice_table[mbb_xy] == h->slice_num);
1290 return get_cabac_noinline( &h->cabac, &(h->cabac_state+70)[ctx] );
1293 static int decode_cabac_intra_mb_type(H264Context *h, int ctx_base, int intra_slice) {
1294 uint8_t *state= &h->cabac_state[ctx_base];
1299 if( h->left_type[LTOP] & (MB_TYPE_INTRA16x16|MB_TYPE_INTRA_PCM))
1301 if( h->top_type & (MB_TYPE_INTRA16x16|MB_TYPE_INTRA_PCM))
1303 if( get_cabac_noinline( &h->cabac, &state[ctx] ) == 0 )
1304 return 0; /* I4x4 */
1307 if( get_cabac_noinline( &h->cabac, state ) == 0 )
1308 return 0; /* I4x4 */
1311 if( get_cabac_terminate( &h->cabac ) )
1312 return 25; /* PCM */
1314 mb_type = 1; /* I16x16 */
1315 mb_type += 12 * get_cabac_noinline( &h->cabac, &state[1] ); /* cbp_luma != 0 */
1316 if( get_cabac_noinline( &h->cabac, &state[2] ) ) /* cbp_chroma */
1317 mb_type += 4 + 4 * get_cabac_noinline( &h->cabac, &state[2+intra_slice] );
1318 mb_type += 2 * get_cabac_noinline( &h->cabac, &state[3+intra_slice] );
1319 mb_type += 1 * get_cabac_noinline( &h->cabac, &state[3+2*intra_slice] );
1323 static int decode_cabac_mb_skip( H264Context *h, int mb_x, int mb_y ) {
1327 if (FRAME_MBAFF(h)) { //FIXME merge with the stuff in fill_caches?
1328 int mb_xy = mb_x + (mb_y&~1)*h->mb_stride;
1331 && h->slice_table[mba_xy] == h->slice_num
1332 && MB_FIELD(h) == !!IS_INTERLACED( h->cur_pic.mb_type[mba_xy] ) )
1333 mba_xy += h->mb_stride;
1335 mbb_xy = mb_xy - h->mb_stride;
1337 && h->slice_table[mbb_xy] == h->slice_num
1338 && IS_INTERLACED( h->cur_pic.mb_type[mbb_xy] ) )
1339 mbb_xy -= h->mb_stride;
1341 mbb_xy = mb_x + (mb_y-1)*h->mb_stride;
1343 int mb_xy = h->mb_xy;
1345 mbb_xy = mb_xy - (h->mb_stride << FIELD_PICTURE(h));
1348 if( h->slice_table[mba_xy] == h->slice_num && !IS_SKIP(h->cur_pic.mb_type[mba_xy] ))
1350 if( h->slice_table[mbb_xy] == h->slice_num && !IS_SKIP(h->cur_pic.mb_type[mbb_xy] ))
1353 if( h->slice_type_nos == AV_PICTURE_TYPE_B )
1355 return get_cabac_noinline( &h->cabac, &h->cabac_state[11+ctx] );
1358 static int decode_cabac_mb_intra4x4_pred_mode( H264Context *h, int pred_mode ) {
1361 if( get_cabac( &h->cabac, &h->cabac_state[68] ) )
1364 mode += 1 * get_cabac( &h->cabac, &h->cabac_state[69] );
1365 mode += 2 * get_cabac( &h->cabac, &h->cabac_state[69] );
1366 mode += 4 * get_cabac( &h->cabac, &h->cabac_state[69] );
1368 return mode + ( mode >= pred_mode );
1371 static int decode_cabac_mb_chroma_pre_mode( H264Context *h) {
1372 const int mba_xy = h->left_mb_xy[0];
1373 const int mbb_xy = h->top_mb_xy;
1377 /* No need to test for IS_INTRA4x4 and IS_INTRA16x16, as we set chroma_pred_mode_table to 0 */
1378 if( h->left_type[LTOP] && h->chroma_pred_mode_table[mba_xy] != 0 )
1381 if( h->top_type && h->chroma_pred_mode_table[mbb_xy] != 0 )
1384 if( get_cabac_noinline( &h->cabac, &h->cabac_state[64+ctx] ) == 0 )
1387 if( get_cabac_noinline( &h->cabac, &h->cabac_state[64+3] ) == 0 )
1389 if( get_cabac_noinline( &h->cabac, &h->cabac_state[64+3] ) == 0 )
1395 static int decode_cabac_mb_cbp_luma( H264Context *h) {
1396 int cbp_b, cbp_a, ctx, cbp = 0;
1398 cbp_a = h->left_cbp;
1401 ctx = !(cbp_a & 0x02) + 2 * !(cbp_b & 0x04);
1402 cbp += get_cabac_noinline(&h->cabac, &h->cabac_state[73 + ctx]);
1403 ctx = !(cbp & 0x01) + 2 * !(cbp_b & 0x08);
1404 cbp += get_cabac_noinline(&h->cabac, &h->cabac_state[73 + ctx]) << 1;
1405 ctx = !(cbp_a & 0x08) + 2 * !(cbp & 0x01);
1406 cbp += get_cabac_noinline(&h->cabac, &h->cabac_state[73 + ctx]) << 2;
1407 ctx = !(cbp & 0x04) + 2 * !(cbp & 0x02);
1408 cbp += get_cabac_noinline(&h->cabac, &h->cabac_state[73 + ctx]) << 3;
1411 static int decode_cabac_mb_cbp_chroma( H264Context *h) {
1415 cbp_a = (h->left_cbp>>4)&0x03;
1416 cbp_b = (h-> top_cbp>>4)&0x03;
1419 if( cbp_a > 0 ) ctx++;
1420 if( cbp_b > 0 ) ctx += 2;
1421 if( get_cabac_noinline( &h->cabac, &h->cabac_state[77 + ctx] ) == 0 )
1425 if( cbp_a == 2 ) ctx++;
1426 if( cbp_b == 2 ) ctx += 2;
1427 return 1 + get_cabac_noinline( &h->cabac, &h->cabac_state[77 + ctx] );
1430 static int decode_cabac_p_mb_sub_type( H264Context *h ) {
1431 if( get_cabac( &h->cabac, &h->cabac_state[21] ) )
1433 if( !get_cabac( &h->cabac, &h->cabac_state[22] ) )
1435 if( get_cabac( &h->cabac, &h->cabac_state[23] ) )
1439 static int decode_cabac_b_mb_sub_type( H264Context *h ) {
1441 if( !get_cabac( &h->cabac, &h->cabac_state[36] ) )
1442 return 0; /* B_Direct_8x8 */
1443 if( !get_cabac( &h->cabac, &h->cabac_state[37] ) )
1444 return 1 + get_cabac( &h->cabac, &h->cabac_state[39] ); /* B_L0_8x8, B_L1_8x8 */
1446 if( get_cabac( &h->cabac, &h->cabac_state[38] ) ) {
1447 if( get_cabac( &h->cabac, &h->cabac_state[39] ) )
1448 return 11 + get_cabac( &h->cabac, &h->cabac_state[39] ); /* B_L1_4x4, B_Bi_4x4 */
1451 type += 2*get_cabac( &h->cabac, &h->cabac_state[39] );
1452 type += get_cabac( &h->cabac, &h->cabac_state[39] );
1456 static int decode_cabac_mb_ref( H264Context *h, int list, int n ) {
1457 int refa = h->ref_cache[list][scan8[n] - 1];
1458 int refb = h->ref_cache[list][scan8[n] - 8];
1462 if( h->slice_type_nos == AV_PICTURE_TYPE_B) {
1463 if( refa > 0 && !(h->direct_cache[scan8[n] - 1]&(MB_TYPE_DIRECT2>>1)) )
1465 if( refb > 0 && !(h->direct_cache[scan8[n] - 8]&(MB_TYPE_DIRECT2>>1)) )
1474 while( get_cabac( &h->cabac, &h->cabac_state[54+ctx] ) ) {
1477 if(ref >= 32 /*h->ref_list[list]*/){
1484 static int decode_cabac_mb_mvd( H264Context *h, int ctxbase, int amvd, int *mvda) {
1487 if(!get_cabac(&h->cabac, &h->cabac_state[ctxbase+((amvd-3)>>(INT_BIT-1))+((amvd-33)>>(INT_BIT-1))+2])){
1488 // if(!get_cabac(&h->cabac, &h->cabac_state[ctxbase+(amvd>2)+(amvd>32)])){
1495 while( mvd < 9 && get_cabac( &h->cabac, &h->cabac_state[ctxbase] ) ) {
1503 while( get_cabac_bypass( &h->cabac ) ) {
1507 av_log(h->avctx, AV_LOG_ERROR, "overflow in decode_cabac_mb_mvd\n");
1512 mvd += get_cabac_bypass( &h->cabac )<<k;
1514 *mvda=mvd < 70 ? mvd : 70;
1517 return get_cabac_bypass_sign( &h->cabac, -mvd );
1520 #define DECODE_CABAC_MB_MVD( h, list, n )\
1522 int amvd0 = h->mvd_cache[list][scan8[n] - 1][0] +\
1523 h->mvd_cache[list][scan8[n] - 8][0];\
1524 int amvd1 = h->mvd_cache[list][scan8[n] - 1][1] +\
1525 h->mvd_cache[list][scan8[n] - 8][1];\
1527 mx += decode_cabac_mb_mvd( h, 40, amvd0, &mpx );\
1528 my += decode_cabac_mb_mvd( h, 47, amvd1, &mpy );\
1531 static av_always_inline int get_cabac_cbf_ctx( H264Context *h, int cat, int idx, int max_coeff, int is_dc ) {
1534 static const uint16_t base_ctx[14] = {85,89,93,97,101,1012,460,464,468,1016,472,476,480,1020};
1538 idx -= CHROMA_DC_BLOCK_INDEX;
1539 nza = (h->left_cbp>>(6+idx))&0x01;
1540 nzb = (h-> top_cbp>>(6+idx))&0x01;
1542 idx -= LUMA_DC_BLOCK_INDEX;
1543 nza = h->left_cbp&(0x100<<idx);
1544 nzb = h-> top_cbp&(0x100<<idx);
1547 nza = h->non_zero_count_cache[scan8[idx] - 1];
1548 nzb = h->non_zero_count_cache[scan8[idx] - 8];
1557 return base_ctx[cat] + ctx;
1560 static av_always_inline void
1561 decode_cabac_residual_internal(H264Context *h, int16_t *block,
1562 int cat, int n, const uint8_t *scantable,
1563 const uint32_t *qmul, int max_coeff,
1564 int is_dc, int chroma422)
1566 static const int significant_coeff_flag_offset[2][14] = {
1567 { 105+0, 105+15, 105+29, 105+44, 105+47, 402, 484+0, 484+15, 484+29, 660, 528+0, 528+15, 528+29, 718 },
1568 { 277+0, 277+15, 277+29, 277+44, 277+47, 436, 776+0, 776+15, 776+29, 675, 820+0, 820+15, 820+29, 733 }
1570 static const int last_coeff_flag_offset[2][14] = {
1571 { 166+0, 166+15, 166+29, 166+44, 166+47, 417, 572+0, 572+15, 572+29, 690, 616+0, 616+15, 616+29, 748 },
1572 { 338+0, 338+15, 338+29, 338+44, 338+47, 451, 864+0, 864+15, 864+29, 699, 908+0, 908+15, 908+29, 757 }
1574 static const int coeff_abs_level_m1_offset[14] = {
1575 227+0, 227+10, 227+20, 227+30, 227+39, 426, 952+0, 952+10, 952+20, 708, 982+0, 982+10, 982+20, 766
1577 static const uint8_t significant_coeff_flag_offset_8x8[2][63] = {
1578 { 0, 1, 2, 3, 4, 5, 5, 4, 4, 3, 3, 4, 4, 4, 5, 5,
1579 4, 4, 4, 4, 3, 3, 6, 7, 7, 7, 8, 9,10, 9, 8, 7,
1580 7, 6,11,12,13,11, 6, 7, 8, 9,14,10, 9, 8, 6,11,
1581 12,13,11, 6, 9,14,10, 9,11,12,13,11,14,10,12 },
1582 { 0, 1, 1, 2, 2, 3, 3, 4, 5, 6, 7, 7, 7, 8, 4, 5,
1583 6, 9,10,10, 8,11,12,11, 9, 9,10,10, 8,11,12,11,
1584 9, 9,10,10, 8,11,12,11, 9, 9,10,10, 8,13,13, 9,
1585 9,10,10, 8,13,13, 9, 9,10,10,14,14,14,14,14 }
1587 static const uint8_t sig_coeff_offset_dc[7] = { 0, 0, 1, 1, 2, 2, 2 };
1588 /* node ctx: 0..3: abslevel1 (with abslevelgt1 == 0).
1589 * 4..7: abslevelgt1 + 3 (and abslevel1 doesn't matter).
1590 * map node ctx => cabac ctx for level=1 */
1591 static const uint8_t coeff_abs_level1_ctx[8] = { 1, 2, 3, 4, 0, 0, 0, 0 };
1592 /* map node ctx => cabac ctx for level>1 */
1593 static const uint8_t coeff_abs_levelgt1_ctx[2][8] = {
1594 { 5, 5, 5, 5, 6, 7, 8, 9 },
1595 { 5, 5, 5, 5, 6, 7, 8, 8 }, // 422/dc case
1597 static const uint8_t coeff_abs_level_transition[2][8] = {
1598 /* update node ctx after decoding a level=1 */
1599 { 1, 2, 3, 3, 4, 5, 6, 7 },
1600 /* update node ctx after decoding a level>1 */
1601 { 4, 4, 4, 4, 5, 6, 7, 7 }
1607 int coeff_count = 0;
1610 uint8_t *significant_coeff_ctx_base;
1611 uint8_t *last_coeff_ctx_base;
1612 uint8_t *abs_level_m1_ctx_base;
1615 #define CABAC_ON_STACK
1617 #ifdef CABAC_ON_STACK
1620 cc.range = h->cabac.range;
1621 cc.low = h->cabac.low;
1622 cc.bytestream= h->cabac.bytestream;
1623 #if !UNCHECKED_BITSTREAM_READER || ARCH_AARCH64
1624 cc.bytestream_end = h->cabac.bytestream_end;
1627 #define CC &h->cabac
1630 significant_coeff_ctx_base = h->cabac_state
1631 + significant_coeff_flag_offset[MB_FIELD(h)][cat];
1632 last_coeff_ctx_base = h->cabac_state
1633 + last_coeff_flag_offset[MB_FIELD(h)][cat];
1634 abs_level_m1_ctx_base = h->cabac_state
1635 + coeff_abs_level_m1_offset[cat];
1637 if( !is_dc && max_coeff == 64 ) {
1638 #define DECODE_SIGNIFICANCE( coefs, sig_off, last_off ) \
1639 for(last= 0; last < coefs; last++) { \
1640 uint8_t *sig_ctx = significant_coeff_ctx_base + sig_off; \
1641 if( get_cabac( CC, sig_ctx )) { \
1642 uint8_t *last_ctx = last_coeff_ctx_base + last_off; \
1643 index[coeff_count++] = last; \
1644 if( get_cabac( CC, last_ctx ) ) { \
1650 if( last == max_coeff -1 ) {\
1651 index[coeff_count++] = last;\
1653 const uint8_t *sig_off = significant_coeff_flag_offset_8x8[MB_FIELD(h)];
1654 #ifdef decode_significance
1655 coeff_count = decode_significance_8x8(CC, significant_coeff_ctx_base, index,
1656 last_coeff_ctx_base, sig_off);
1658 if (is_dc && chroma422) { // dc 422
1659 DECODE_SIGNIFICANCE(7, sig_coeff_offset_dc[last], sig_coeff_offset_dc[last]);
1661 coeff_count = decode_significance(CC, max_coeff, significant_coeff_ctx_base, index,
1662 last_coeff_ctx_base-significant_coeff_ctx_base);
1665 DECODE_SIGNIFICANCE( 63, sig_off[last], ff_h264_last_coeff_flag_offset_8x8[last] );
1667 if (is_dc && chroma422) { // dc 422
1668 DECODE_SIGNIFICANCE(7, sig_coeff_offset_dc[last], sig_coeff_offset_dc[last]);
1670 DECODE_SIGNIFICANCE(max_coeff - 1, last, last);
1674 av_assert2(coeff_count > 0);
1678 h->cbp_table[h->mb_xy] |= 0x40 << (n - CHROMA_DC_BLOCK_INDEX);
1680 h->cbp_table[h->mb_xy] |= 0x100 << (n - LUMA_DC_BLOCK_INDEX);
1681 h->non_zero_count_cache[scan8[n]] = coeff_count;
1683 if( max_coeff == 64 )
1684 fill_rectangle(&h->non_zero_count_cache[scan8[n]], 2, 2, 8, coeff_count, 1);
1686 av_assert2( cat == 1 || cat == 2 || cat == 4 || cat == 7 || cat == 8 || cat == 11 || cat == 12 );
1687 h->non_zero_count_cache[scan8[n]] = coeff_count;
1691 #define STORE_BLOCK(type) \
1693 uint8_t *ctx = coeff_abs_level1_ctx[node_ctx] + abs_level_m1_ctx_base; \
1695 int j= scantable[index[--coeff_count]]; \
1697 if( get_cabac( CC, ctx ) == 0 ) { \
1698 node_ctx = coeff_abs_level_transition[0][node_ctx]; \
1700 ((type*)block)[j] = get_cabac_bypass_sign( CC, -1); \
1702 ((type*)block)[j] = (get_cabac_bypass_sign( CC, -qmul[j]) + 32) >> 6; \
1705 int coeff_abs = 2; \
1706 ctx = coeff_abs_levelgt1_ctx[is_dc && chroma422][node_ctx] + abs_level_m1_ctx_base; \
1707 node_ctx = coeff_abs_level_transition[1][node_ctx]; \
1709 while( coeff_abs < 15 && get_cabac( CC, ctx ) ) { \
1713 if( coeff_abs >= 15 ) { \
1715 while(get_cabac_bypass( CC ) && j<30) { \
1721 coeff_abs += coeff_abs + get_cabac_bypass( CC ); \
1727 ((type*)block)[j] = get_cabac_bypass_sign( CC, -coeff_abs ); \
1729 ((type*)block)[j] = ((int)(get_cabac_bypass_sign( CC, -coeff_abs ) * qmul[j] + 32)) >> 6; \
1732 } while ( coeff_count );
1734 if (h->pixel_shift) {
1735 STORE_BLOCK(int32_t)
1737 STORE_BLOCK(int16_t)
1739 #ifdef CABAC_ON_STACK
1740 h->cabac.range = cc.range ;
1741 h->cabac.low = cc.low ;
1742 h->cabac.bytestream= cc.bytestream;
1747 static av_noinline void decode_cabac_residual_dc_internal(H264Context *h,
1750 const uint8_t *scantable,
1753 decode_cabac_residual_internal(h, block, cat, n, scantable, NULL, max_coeff, 1, 0);
1756 static av_noinline void decode_cabac_residual_dc_internal_422(H264Context *h,
1759 const uint8_t *scantable,
1762 decode_cabac_residual_internal(h, block, cat, n, scantable, NULL, max_coeff, 1, 1);
1765 static av_noinline void decode_cabac_residual_nondc_internal(H264Context *h,
1768 const uint8_t *scantable,
1769 const uint32_t *qmul,
1772 decode_cabac_residual_internal(h, block, cat, n, scantable, qmul, max_coeff, 0, 0);
1775 /* cat: 0-> DC 16x16 n = 0
1776 * 1-> AC 16x16 n = luma4x4idx
1777 * 2-> Luma4x4 n = luma4x4idx
1778 * 3-> DC Chroma n = iCbCr
1779 * 4-> AC Chroma n = 16 + 4 * iCbCr + chroma4x4idx
1780 * 5-> Luma8x8 n = 4 * luma8x8idx */
1782 /* Partially inline the CABAC residual decode: inline the coded block flag.
1783 * This has very little impact on binary size and improves performance
1784 * because it allows improved constant propagation into get_cabac_cbf_ctx,
1785 * as well as because most blocks have zero CBFs. */
1787 static av_always_inline void decode_cabac_residual_dc(H264Context *h,
1790 const uint8_t *scantable,
1793 /* read coded block flag */
1794 if( get_cabac( &h->cabac, &h->cabac_state[get_cabac_cbf_ctx( h, cat, n, max_coeff, 1 ) ] ) == 0 ) {
1795 h->non_zero_count_cache[scan8[n]] = 0;
1798 decode_cabac_residual_dc_internal( h, block, cat, n, scantable, max_coeff );
1801 static av_always_inline void
1802 decode_cabac_residual_dc_422(H264Context *h, int16_t *block,
1803 int cat, int n, const uint8_t *scantable,
1806 /* read coded block flag */
1807 if (get_cabac(&h->cabac, &h->cabac_state[get_cabac_cbf_ctx(h, cat, n, max_coeff, 1)]) == 0) {
1808 h->non_zero_count_cache[scan8[n]] = 0;
1811 decode_cabac_residual_dc_internal_422(h, block, cat, n, scantable, max_coeff);
1814 static av_always_inline void decode_cabac_residual_nondc(H264Context *h,
1817 const uint8_t *scantable,
1818 const uint32_t *qmul,
1821 /* read coded block flag */
1822 if( (cat != 5 || CHROMA444(h)) && get_cabac( &h->cabac, &h->cabac_state[get_cabac_cbf_ctx( h, cat, n, max_coeff, 0 ) ] ) == 0 ) {
1823 if( max_coeff == 64 ) {
1824 fill_rectangle(&h->non_zero_count_cache[scan8[n]], 2, 2, 8, 0, 1);
1826 h->non_zero_count_cache[scan8[n]] = 0;
1830 decode_cabac_residual_nondc_internal( h, block, cat, n, scantable, qmul, max_coeff );
1833 static av_always_inline void decode_cabac_luma_residual( H264Context *h, const uint8_t *scan, const uint8_t *scan8x8, int pixel_shift, int mb_type, int cbp, int p )
1835 static const uint8_t ctx_cat[4][3] = {{0,6,10},{1,7,11},{2,8,12},{5,9,13}};
1836 const uint32_t *qmul;
1838 int qscale = p == 0 ? h->qscale : h->chroma_qp[p-1];
1839 if( IS_INTRA16x16( mb_type ) ) {
1840 AV_ZERO128(h->mb_luma_dc[p]+0);
1841 AV_ZERO128(h->mb_luma_dc[p]+8);
1842 AV_ZERO128(h->mb_luma_dc[p]+16);
1843 AV_ZERO128(h->mb_luma_dc[p]+24);
1844 decode_cabac_residual_dc(h, h->mb_luma_dc[p], ctx_cat[0][p], LUMA_DC_BLOCK_INDEX+p, scan, 16);
1847 qmul = h->dequant4_coeff[p][qscale];
1848 for( i4x4 = 0; i4x4 < 16; i4x4++ ) {
1849 const int index = 16*p + i4x4;
1850 decode_cabac_residual_nondc(h, h->mb + (16*index << pixel_shift), ctx_cat[1][p], index, scan + 1, qmul, 15);
1853 fill_rectangle(&h->non_zero_count_cache[scan8[16*p]], 4, 4, 8, 0, 1);
1856 int cqm = (IS_INTRA( mb_type ) ? 0:3) + p;
1857 for( i8x8 = 0; i8x8 < 4; i8x8++ ) {
1858 if( cbp & (1<<i8x8) ) {
1859 if( IS_8x8DCT(mb_type) ) {
1860 const int index = 16*p + 4*i8x8;
1861 decode_cabac_residual_nondc(h, h->mb + (16*index << pixel_shift), ctx_cat[3][p], index,
1862 scan8x8, h->dequant8_coeff[cqm][qscale], 64);
1864 qmul = h->dequant4_coeff[cqm][qscale];
1865 for( i4x4 = 0; i4x4 < 4; i4x4++ ) {
1866 const int index = 16*p + 4*i8x8 + i4x4;
1868 decode_cabac_residual_nondc(h, h->mb + (16*index << pixel_shift), ctx_cat[2][p], index, scan, qmul, 16);
1869 //STOP_TIMER("decode_residual")
1873 fill_rectangle(&h->non_zero_count_cache[scan8[4*i8x8+16*p]], 2, 2, 8, 0, 1);
1880 * Decode a macroblock.
1881 * @return 0 if OK, ER_AC_ERROR / ER_DC_ERROR / ER_MV_ERROR if an error is noticed
1883 int ff_h264_decode_mb_cabac(H264Context *h) {
1885 int mb_type, partition_count, cbp = 0;
1886 int dct8x8_allowed= h->pps.transform_8x8_mode;
1887 int decode_chroma = h->sps.chroma_format_idc == 1 || h->sps.chroma_format_idc == 2;
1888 const int pixel_shift = h->pixel_shift;
1889 unsigned local_ref_count[2];
1891 mb_xy = h->mb_xy = h->mb_x + h->mb_y*h->mb_stride;
1893 tprintf(h->avctx, "pic:%d mb:%d/%d\n", h->frame_num, h->mb_x, h->mb_y);
1894 if( h->slice_type_nos != AV_PICTURE_TYPE_I ) {
1896 /* a skipped mb needs the aff flag from the following mb */
1897 if (FRAME_MBAFF(h) && (h->mb_y & 1) == 1 && h->prev_mb_skipped)
1898 skip = h->next_mb_skipped;
1900 skip = decode_cabac_mb_skip( h, h->mb_x, h->mb_y );
1901 /* read skip flags */
1903 if (FRAME_MBAFF(h) && (h->mb_y & 1) == 0) {
1904 h->cur_pic.mb_type[mb_xy] = MB_TYPE_SKIP;
1905 h->next_mb_skipped = decode_cabac_mb_skip( h, h->mb_x, h->mb_y+1 );
1906 if(!h->next_mb_skipped)
1907 h->mb_mbaff = h->mb_field_decoding_flag = decode_cabac_field_decoding_flag(h);
1912 h->cbp_table[mb_xy] = 0;
1913 h->chroma_pred_mode_table[mb_xy] = 0;
1914 h->last_qscale_diff = 0;
1920 if (FRAME_MBAFF(h)) {
1921 if( (h->mb_y&1) == 0 )
1923 h->mb_field_decoding_flag = decode_cabac_field_decoding_flag(h);
1926 h->prev_mb_skipped = 0;
1928 fill_decode_neighbors(h, -(MB_FIELD(h)));
1930 if( h->slice_type_nos == AV_PICTURE_TYPE_B ) {
1932 av_assert2(h->slice_type_nos == AV_PICTURE_TYPE_B);
1934 if( !IS_DIRECT( h->left_type[LTOP]-1 ) )
1936 if( !IS_DIRECT( h->top_type-1 ) )
1939 if( !get_cabac_noinline( &h->cabac, &h->cabac_state[27+ctx] ) ){
1940 mb_type= 0; /* B_Direct_16x16 */
1941 }else if( !get_cabac_noinline( &h->cabac, &h->cabac_state[27+3] ) ) {
1942 mb_type= 1 + get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] ); /* B_L[01]_16x16 */
1945 bits = get_cabac_noinline( &h->cabac, &h->cabac_state[27+4] ) << 3;
1946 bits+= get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] ) << 2;
1947 bits+= get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] ) << 1;
1948 bits+= get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] );
1950 mb_type= bits + 3; /* B_Bi_16x16 through B_L1_L0_16x8 */
1951 }else if( bits == 13 ){
1952 mb_type= decode_cabac_intra_mb_type(h, 32, 0);
1953 goto decode_intra_mb;
1954 }else if( bits == 14 ){
1955 mb_type= 11; /* B_L1_L0_8x16 */
1956 }else if( bits == 15 ){
1957 mb_type= 22; /* B_8x8 */
1959 bits= ( bits<<1 ) + get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] );
1960 mb_type= bits - 4; /* B_L0_Bi_* through B_Bi_Bi_* */
1963 partition_count= b_mb_type_info[mb_type].partition_count;
1964 mb_type= b_mb_type_info[mb_type].type;
1965 } else if( h->slice_type_nos == AV_PICTURE_TYPE_P ) {
1966 if( get_cabac_noinline( &h->cabac, &h->cabac_state[14] ) == 0 ) {
1968 if( get_cabac_noinline( &h->cabac, &h->cabac_state[15] ) == 0 ) {
1969 /* P_L0_D16x16, P_8x8 */
1970 mb_type= 3 * get_cabac_noinline( &h->cabac, &h->cabac_state[16] );
1972 /* P_L0_D8x16, P_L0_D16x8 */
1973 mb_type= 2 - get_cabac_noinline( &h->cabac, &h->cabac_state[17] );
1975 partition_count= p_mb_type_info[mb_type].partition_count;
1976 mb_type= p_mb_type_info[mb_type].type;
1978 mb_type= decode_cabac_intra_mb_type(h, 17, 0);
1979 goto decode_intra_mb;
1982 mb_type= decode_cabac_intra_mb_type(h, 3, 1);
1983 if(h->slice_type == AV_PICTURE_TYPE_SI && mb_type)
1985 av_assert2(h->slice_type_nos == AV_PICTURE_TYPE_I);
1987 partition_count = 0;
1988 cbp= i_mb_type_info[mb_type].cbp;
1989 h->intra16x16_pred_mode= i_mb_type_info[mb_type].pred_mode;
1990 mb_type= i_mb_type_info[mb_type].type;
1993 mb_type |= MB_TYPE_INTERLACED;
1995 h->slice_table[ mb_xy ]= h->slice_num;
1997 if(IS_INTRA_PCM(mb_type)) {
1998 const int mb_size = ff_h264_mb_sizes[h->sps.chroma_format_idc] *
1999 h->sps.bit_depth_luma >> 3;
2002 // We assume these blocks are very rare so we do not optimize it.
2003 // FIXME The two following lines get the bitstream position in the cabac
2004 // decode, I think it should be done by a function in cabac.h (or cabac.c).
2005 ptr= h->cabac.bytestream;
2006 if(h->cabac.low&0x1) ptr--;
2008 if(h->cabac.low&0x1FF) ptr--;
2011 // The pixels are stored in the same order as levels in h->mb array.
2012 if ((int) (h->cabac.bytestream_end - ptr) < mb_size)
2014 h->intra_pcm_ptr = ptr;
2017 ff_init_cabac_decoder(&h->cabac, ptr, h->cabac.bytestream_end - ptr);
2019 // All blocks are present
2020 h->cbp_table[mb_xy] = 0xf7ef;
2021 h->chroma_pred_mode_table[mb_xy] = 0;
2022 // In deblocking, the quantizer is 0
2023 h->cur_pic.qscale_table[mb_xy] = 0;
2024 // All coeffs are present
2025 memset(h->non_zero_count[mb_xy], 16, 48);
2026 h->cur_pic.mb_type[mb_xy] = mb_type;
2027 h->last_qscale_diff = 0;
2031 local_ref_count[0] = h->ref_count[0] << MB_MBAFF(h);
2032 local_ref_count[1] = h->ref_count[1] << MB_MBAFF(h);
2034 fill_decode_caches(h, mb_type);
2036 if( IS_INTRA( mb_type ) ) {
2038 if( IS_INTRA4x4( mb_type ) ) {
2039 if( dct8x8_allowed && get_cabac_noinline( &h->cabac, &h->cabac_state[399 + h->neighbor_transform_size] ) ) {
2040 mb_type |= MB_TYPE_8x8DCT;
2041 for( i = 0; i < 16; i+=4 ) {
2042 int pred = pred_intra_mode( h, i );
2043 int mode = decode_cabac_mb_intra4x4_pred_mode( h, pred );
2044 fill_rectangle( &h->intra4x4_pred_mode_cache[ scan8[i] ], 2, 2, 8, mode, 1 );
2047 for( i = 0; i < 16; i++ ) {
2048 int pred = pred_intra_mode( h, i );
2049 h->intra4x4_pred_mode_cache[ scan8[i] ] = decode_cabac_mb_intra4x4_pred_mode( h, pred );
2051 av_dlog(h->avctx, "i4x4 pred=%d mode=%d\n", pred,
2052 h->intra4x4_pred_mode_cache[scan8[i]]);
2055 write_back_intra_pred_mode(h);
2056 if( ff_h264_check_intra4x4_pred_mode(h) < 0 ) return -1;
2058 h->intra16x16_pred_mode= ff_h264_check_intra_pred_mode( h, h->intra16x16_pred_mode, 0 );
2059 if( h->intra16x16_pred_mode < 0 ) return -1;
2062 h->chroma_pred_mode_table[mb_xy] =
2063 pred_mode = decode_cabac_mb_chroma_pre_mode( h );
2065 pred_mode= ff_h264_check_intra_pred_mode( h, pred_mode, 1 );
2066 if( pred_mode < 0 ) return -1;
2067 h->chroma_pred_mode= pred_mode;
2069 h->chroma_pred_mode= DC_128_PRED8x8;
2071 } else if( partition_count == 4 ) {
2072 int i, j, sub_partition_count[4], list, ref[2][4];
2074 if( h->slice_type_nos == AV_PICTURE_TYPE_B ) {
2075 for( i = 0; i < 4; i++ ) {
2076 h->sub_mb_type[i] = decode_cabac_b_mb_sub_type( h );
2077 sub_partition_count[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
2078 h->sub_mb_type[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].type;
2080 if( IS_DIRECT(h->sub_mb_type[0] | h->sub_mb_type[1] |
2081 h->sub_mb_type[2] | h->sub_mb_type[3]) ) {
2082 ff_h264_pred_direct_motion(h, &mb_type);
2083 h->ref_cache[0][scan8[4]] =
2084 h->ref_cache[1][scan8[4]] =
2085 h->ref_cache[0][scan8[12]] =
2086 h->ref_cache[1][scan8[12]] = PART_NOT_AVAILABLE;
2087 for( i = 0; i < 4; i++ )
2088 fill_rectangle( &h->direct_cache[scan8[4*i]], 2, 2, 8, (h->sub_mb_type[i]>>1)&0xFF, 1 );
2091 for( i = 0; i < 4; i++ ) {
2092 h->sub_mb_type[i] = decode_cabac_p_mb_sub_type( h );
2093 sub_partition_count[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
2094 h->sub_mb_type[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].type;
2098 for( list = 0; list < h->list_count; list++ ) {
2099 for( i = 0; i < 4; i++ ) {
2100 if(IS_DIRECT(h->sub_mb_type[i])) continue;
2101 if(IS_DIR(h->sub_mb_type[i], 0, list)){
2102 if (local_ref_count[list] > 1) {
2103 ref[list][i] = decode_cabac_mb_ref( h, list, 4*i );
2104 if (ref[list][i] >= (unsigned)local_ref_count[list]) {
2105 av_log(h->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref[list][i], local_ref_count[list]);
2113 h->ref_cache[list][ scan8[4*i]+1 ]=
2114 h->ref_cache[list][ scan8[4*i]+8 ]=h->ref_cache[list][ scan8[4*i]+9 ]= ref[list][i];
2119 dct8x8_allowed = get_dct8x8_allowed(h);
2121 for(list=0; list<h->list_count; list++){
2123 h->ref_cache[list][ scan8[4*i] ]=h->ref_cache[list][ scan8[4*i]+1 ];
2124 if(IS_DIRECT(h->sub_mb_type[i])){
2125 fill_rectangle(h->mvd_cache[list][scan8[4*i]], 2, 2, 8, 0, 2);
2129 if(IS_DIR(h->sub_mb_type[i], 0, list) && !IS_DIRECT(h->sub_mb_type[i])){
2130 const int sub_mb_type= h->sub_mb_type[i];
2131 const int block_width= (sub_mb_type & (MB_TYPE_16x16|MB_TYPE_16x8)) ? 2 : 1;
2132 for(j=0; j<sub_partition_count[i]; j++){
2135 const int index= 4*i + block_width*j;
2136 int16_t (* mv_cache)[2]= &h->mv_cache[list][ scan8[index] ];
2137 uint8_t (* mvd_cache)[2]= &h->mvd_cache[list][ scan8[index] ];
2138 pred_motion(h, index, block_width, list, h->ref_cache[list][ scan8[index] ], &mx, &my);
2139 DECODE_CABAC_MB_MVD( h, list, index)
2140 tprintf(h->avctx, "final mv:%d %d\n", mx, my);
2142 if(IS_SUB_8X8(sub_mb_type)){
2144 mv_cache[ 8 ][0]= mv_cache[ 9 ][0]= mx;
2146 mv_cache[ 8 ][1]= mv_cache[ 9 ][1]= my;
2149 mvd_cache[ 8 ][0]= mvd_cache[ 9 ][0]= mpx;
2151 mvd_cache[ 8 ][1]= mvd_cache[ 9 ][1]= mpy;
2152 }else if(IS_SUB_8X4(sub_mb_type)){
2153 mv_cache[ 1 ][0]= mx;
2154 mv_cache[ 1 ][1]= my;
2156 mvd_cache[ 1 ][0]= mpx;
2157 mvd_cache[ 1 ][1]= mpy;
2158 }else if(IS_SUB_4X8(sub_mb_type)){
2159 mv_cache[ 8 ][0]= mx;
2160 mv_cache[ 8 ][1]= my;
2162 mvd_cache[ 8 ][0]= mpx;
2163 mvd_cache[ 8 ][1]= mpy;
2165 mv_cache[ 0 ][0]= mx;
2166 mv_cache[ 0 ][1]= my;
2168 mvd_cache[ 0 ][0]= mpx;
2169 mvd_cache[ 0 ][1]= mpy;
2172 fill_rectangle(h->mv_cache [list][ scan8[4*i] ], 2, 2, 8, 0, 4);
2173 fill_rectangle(h->mvd_cache[list][ scan8[4*i] ], 2, 2, 8, 0, 2);
2177 } else if( IS_DIRECT(mb_type) ) {
2178 ff_h264_pred_direct_motion(h, &mb_type);
2179 fill_rectangle(h->mvd_cache[0][scan8[0]], 4, 4, 8, 0, 2);
2180 fill_rectangle(h->mvd_cache[1][scan8[0]], 4, 4, 8, 0, 2);
2181 dct8x8_allowed &= h->sps.direct_8x8_inference_flag;
2184 if(IS_16X16(mb_type)){
2185 for(list=0; list<h->list_count; list++){
2186 if(IS_DIR(mb_type, 0, list)){
2188 if (local_ref_count[list] > 1) {
2189 ref= decode_cabac_mb_ref(h, list, 0);
2190 if (ref >= (unsigned)local_ref_count[list]) {
2191 av_log(h->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref, local_ref_count[list]);
2196 fill_rectangle(&h->ref_cache[list][ scan8[0] ], 4, 4, 8, ref, 1);
2199 for(list=0; list<h->list_count; list++){
2200 if(IS_DIR(mb_type, 0, list)){
2202 pred_motion(h, 0, 4, list, h->ref_cache[list][ scan8[0] ], &mx, &my);
2203 DECODE_CABAC_MB_MVD( h, list, 0)
2204 tprintf(h->avctx, "final mv:%d %d\n", mx, my);
2206 fill_rectangle(h->mvd_cache[list][ scan8[0] ], 4, 4, 8, pack8to16(mpx,mpy), 2);
2207 fill_rectangle(h->mv_cache[list][ scan8[0] ], 4, 4, 8, pack16to32(mx,my), 4);
2211 else if(IS_16X8(mb_type)){
2212 for(list=0; list<h->list_count; list++){
2214 if(IS_DIR(mb_type, i, list)){
2216 if (local_ref_count[list] > 1) {
2217 ref= decode_cabac_mb_ref( h, list, 8*i );
2218 if (ref >= (unsigned)local_ref_count[list]) {
2219 av_log(h->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref, local_ref_count[list]);
2224 fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, ref, 1);
2226 fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, (LIST_NOT_USED&0xFF), 1);
2229 for(list=0; list<h->list_count; list++){
2231 if(IS_DIR(mb_type, i, list)){
2233 pred_16x8_motion(h, 8*i, list, h->ref_cache[list][scan8[0] + 16*i], &mx, &my);
2234 DECODE_CABAC_MB_MVD( h, list, 8*i)
2235 tprintf(h->avctx, "final mv:%d %d\n", mx, my);
2237 fill_rectangle(h->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack8to16(mpx,mpy), 2);
2238 fill_rectangle(h->mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack16to32(mx,my), 4);
2240 fill_rectangle(h->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 2);
2241 fill_rectangle(h-> mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 4);
2246 av_assert2(IS_8X16(mb_type));
2247 for(list=0; list<h->list_count; list++){
2249 if(IS_DIR(mb_type, i, list)){ //FIXME optimize
2251 if (local_ref_count[list] > 1) {
2252 ref= decode_cabac_mb_ref( h, list, 4*i );
2253 if (ref >= (unsigned)local_ref_count[list]) {
2254 av_log(h->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref, local_ref_count[list]);
2259 fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, ref, 1);
2261 fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, (LIST_NOT_USED&0xFF), 1);
2264 for(list=0; list<h->list_count; list++){
2266 if(IS_DIR(mb_type, i, list)){
2268 pred_8x16_motion(h, i*4, list, h->ref_cache[list][ scan8[0] + 2*i ], &mx, &my);
2269 DECODE_CABAC_MB_MVD( h, list, 4*i)
2271 tprintf(h->avctx, "final mv:%d %d\n", mx, my);
2272 fill_rectangle(h->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack8to16(mpx,mpy), 2);
2273 fill_rectangle(h->mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack16to32(mx,my), 4);
2275 fill_rectangle(h->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 2);
2276 fill_rectangle(h-> mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 4);
2283 if( IS_INTER( mb_type ) ) {
2284 h->chroma_pred_mode_table[mb_xy] = 0;
2285 write_back_motion( h, mb_type );
2288 if( !IS_INTRA16x16( mb_type ) ) {
2289 cbp = decode_cabac_mb_cbp_luma( h );
2291 cbp |= decode_cabac_mb_cbp_chroma( h ) << 4;
2293 if (!decode_chroma && cbp>15) {
2294 av_log(h->avctx, AV_LOG_ERROR, "gray chroma\n");
2295 return AVERROR_INVALIDDATA;
2299 h->cbp_table[mb_xy] = h->cbp = cbp;
2301 if( dct8x8_allowed && (cbp&15) && !IS_INTRA( mb_type ) ) {
2302 mb_type |= MB_TYPE_8x8DCT * get_cabac_noinline( &h->cabac, &h->cabac_state[399 + h->neighbor_transform_size] );
2305 /* It would be better to do this in fill_decode_caches, but we don't know
2306 * the transform mode of the current macroblock there. */
2307 if (CHROMA444(h) && IS_8x8DCT(mb_type)){
2309 uint8_t *nnz_cache = h->non_zero_count_cache;
2310 for (i = 0; i < 2; i++){
2311 if (h->left_type[LEFT(i)] && !IS_8x8DCT(h->left_type[LEFT(i)])){
2312 nnz_cache[3+8* 1 + 2*8*i]=
2313 nnz_cache[3+8* 2 + 2*8*i]=
2314 nnz_cache[3+8* 6 + 2*8*i]=
2315 nnz_cache[3+8* 7 + 2*8*i]=
2316 nnz_cache[3+8*11 + 2*8*i]=
2317 nnz_cache[3+8*12 + 2*8*i]= IS_INTRA(mb_type) ? 64 : 0;
2320 if (h->top_type && !IS_8x8DCT(h->top_type)){
2321 uint32_t top_empty = CABAC(h) && !IS_INTRA(mb_type) ? 0 : 0x40404040;
2322 AV_WN32A(&nnz_cache[4+8* 0], top_empty);
2323 AV_WN32A(&nnz_cache[4+8* 5], top_empty);
2324 AV_WN32A(&nnz_cache[4+8*10], top_empty);
2327 h->cur_pic.mb_type[mb_xy] = mb_type;
2329 if( cbp || IS_INTRA16x16( mb_type ) ) {
2330 const uint8_t *scan, *scan8x8;
2331 const uint32_t *qmul;
2333 if(IS_INTERLACED(mb_type)){
2334 scan8x8= h->qscale ? h->field_scan8x8 : h->field_scan8x8_q0;
2335 scan= h->qscale ? h->field_scan : h->field_scan_q0;
2337 scan8x8= h->qscale ? h->zigzag_scan8x8 : h->zigzag_scan8x8_q0;
2338 scan= h->qscale ? h->zigzag_scan : h->zigzag_scan_q0;
2341 // decode_cabac_mb_dqp
2342 if(get_cabac_noinline( &h->cabac, &h->cabac_state[60 + (h->last_qscale_diff != 0)])){
2345 const int max_qp = 51 + 6*(h->sps.bit_depth_luma-8);
2347 while( get_cabac_noinline( &h->cabac, &h->cabac_state[60 + ctx] ) ) {
2350 if(val > 2*max_qp){ //prevent infinite loop
2351 av_log(h->avctx, AV_LOG_ERROR, "cabac decode of qscale diff failed at %d %d\n", h->mb_x, h->mb_y);
2359 val= -((val + 1)>>1);
2360 h->last_qscale_diff = val;
2362 if(((unsigned)h->qscale) > max_qp){
2363 if(h->qscale<0) h->qscale+= max_qp+1;
2364 else h->qscale-= max_qp+1;
2366 h->chroma_qp[0] = get_chroma_qp(h, 0, h->qscale);
2367 h->chroma_qp[1] = get_chroma_qp(h, 1, h->qscale);
2369 h->last_qscale_diff=0;
2371 decode_cabac_luma_residual(h, scan, scan8x8, pixel_shift, mb_type, cbp, 0);
2373 decode_cabac_luma_residual(h, scan, scan8x8, pixel_shift, mb_type, cbp, 1);
2374 decode_cabac_luma_residual(h, scan, scan8x8, pixel_shift, mb_type, cbp, 2);
2375 } else if (CHROMA422(h)) {
2378 for (c = 0; c < 2; c++)
2379 decode_cabac_residual_dc_422(h, h->mb + ((256 + 16*16*c) << pixel_shift), 3,
2380 CHROMA_DC_BLOCK_INDEX + c,
2381 chroma422_dc_scan, 8);
2386 for( c = 0; c < 2; c++ ) {
2387 int16_t *mb = h->mb + (16*(16 + 16*c) << pixel_shift);
2388 qmul = h->dequant4_coeff[c+1+(IS_INTRA( mb_type ) ? 0:3)][h->chroma_qp[c]];
2389 for (i8x8 = 0; i8x8 < 2; i8x8++) {
2390 for (i = 0; i < 4; i++) {
2391 const int index = 16 + 16 * c + 8*i8x8 + i;
2392 decode_cabac_residual_nondc(h, mb, 4, index, scan + 1, qmul, 15);
2393 mb += 16<<pixel_shift;
2398 fill_rectangle(&h->non_zero_count_cache[scan8[16]], 4, 4, 8, 0, 1);
2399 fill_rectangle(&h->non_zero_count_cache[scan8[32]], 4, 4, 8, 0, 1);
2401 } else /* yuv420 */ {
2404 for (c = 0; c < 2; c++)
2405 decode_cabac_residual_dc(h, h->mb + ((256 + 16*16*c) << pixel_shift), 3, CHROMA_DC_BLOCK_INDEX+c, chroma_dc_scan, 4);
2410 for( c = 0; c < 2; c++ ) {
2411 qmul = h->dequant4_coeff[c+1+(IS_INTRA( mb_type ) ? 0:3)][h->chroma_qp[c]];
2412 for( i = 0; i < 4; i++ ) {
2413 const int index = 16 + 16 * c + i;
2414 decode_cabac_residual_nondc(h, h->mb + (16*index << pixel_shift), 4, index, scan + 1, qmul, 15);
2418 fill_rectangle(&h->non_zero_count_cache[scan8[16]], 4, 4, 8, 0, 1);
2419 fill_rectangle(&h->non_zero_count_cache[scan8[32]], 4, 4, 8, 0, 1);
2423 fill_rectangle(&h->non_zero_count_cache[scan8[ 0]], 4, 4, 8, 0, 1);
2424 fill_rectangle(&h->non_zero_count_cache[scan8[16]], 4, 4, 8, 0, 1);
2425 fill_rectangle(&h->non_zero_count_cache[scan8[32]], 4, 4, 8, 0, 1);
2426 h->last_qscale_diff = 0;
2429 h->cur_pic.qscale_table[mb_xy] = h->qscale;
2430 write_back_non_zero_count(h);
projects / platform / framework / web / crosswalk.git / blob