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h264_cabac.c
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1 /*
2  * H.26L/H.264/AVC/JVT/14496-10/... cabac decoding
3  * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
4  *
5  * This file is part of FFmpeg.
6  *
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.
11  *
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.
16  *
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
20  */
21 
22 /**
23  * @file
24  * H.264 / AVC / MPEG4 part10 cabac decoding.
25  * @author Michael Niedermayer <michaelni@gmx.at>
26  */
27 
28 #define CABAC(h) 1
29 #define UNCHECKED_BITSTREAM_READER 1
30 #define INT_BIT (CHAR_BIT * sizeof(int))
31 
32 #include "libavutil/attributes.h"
33 #include "libavutil/avassert.h"
34 #include "libavutil/timer.h"
35 #include "config.h"
36 #include "cabac.h"
37 #include "cabac_functions.h"
38 #include "internal.h"
39 #include "avcodec.h"
40 #include "h264.h"
41 #include "h264data.h"
42 #include "h264_mvpred.h"
43 #include "golomb.h"
44 #include "mpegutils.h"
45 
46 #if ARCH_X86
47 #include "x86/h264_i386.h"
48 #endif
49 
50 /* Cabac pre state table */
51 
52 static const int8_t cabac_context_init_I[1024][2] =
53 {
54  /* 0 - 10 */
55  { 20, -15 }, { 2, 54 }, { 3, 74 }, { 20, -15 },
56  { 2, 54 }, { 3, 74 }, { -28,127 }, { -23, 104 },
57  { -6, 53 }, { -1, 54 }, { 7, 51 },
58 
59  /* 11 - 23 unsused for I */
60  { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
61  { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
62  { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
63  { 0, 0 },
64 
65  /* 24- 39 */
66  { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
67  { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
68  { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
69  { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
70 
71  /* 40 - 53 */
72  { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
73  { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
74  { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
75  { 0, 0 }, { 0, 0 },
76 
77  /* 54 - 59 */
78  { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
79  { 0, 0 }, { 0, 0 },
80 
81  /* 60 - 69 */
82  { 0, 41 }, { 0, 63 }, { 0, 63 }, { 0, 63 },
83  { -9, 83 }, { 4, 86 }, { 0, 97 }, { -7, 72 },
84  { 13, 41 }, { 3, 62 },
85 
86  /* 70 -> 87 */
87  { 0, 11 }, { 1, 55 }, { 0, 69 }, { -17, 127 },
88  { -13, 102 },{ 0, 82 }, { -7, 74 }, { -21, 107 },
89  { -27, 127 },{ -31, 127 },{ -24, 127 }, { -18, 95 },
90  { -27, 127 },{ -21, 114 },{ -30, 127 }, { -17, 123 },
91  { -12, 115 },{ -16, 122 },
92 
93  /* 88 -> 104 */
94  { -11, 115 },{ -12, 63 }, { -2, 68 }, { -15, 84 },
95  { -13, 104 },{ -3, 70 }, { -8, 93 }, { -10, 90 },
96  { -30, 127 },{ -1, 74 }, { -6, 97 }, { -7, 91 },
97  { -20, 127 },{ -4, 56 }, { -5, 82 }, { -7, 76 },
98  { -22, 125 },
99 
100  /* 105 -> 135 */
101  { -7, 93 }, { -11, 87 }, { -3, 77 }, { -5, 71 },
102  { -4, 63 }, { -4, 68 }, { -12, 84 }, { -7, 62 },
103  { -7, 65 }, { 8, 61 }, { 5, 56 }, { -2, 66 },
104  { 1, 64 }, { 0, 61 }, { -2, 78 }, { 1, 50 },
105  { 7, 52 }, { 10, 35 }, { 0, 44 }, { 11, 38 },
106  { 1, 45 }, { 0, 46 }, { 5, 44 }, { 31, 17 },
107  { 1, 51 }, { 7, 50 }, { 28, 19 }, { 16, 33 },
108  { 14, 62 }, { -13, 108 },{ -15, 100 },
109 
110  /* 136 -> 165 */
111  { -13, 101 },{ -13, 91 }, { -12, 94 }, { -10, 88 },
112  { -16, 84 }, { -10, 86 }, { -7, 83 }, { -13, 87 },
113  { -19, 94 }, { 1, 70 }, { 0, 72 }, { -5, 74 },
114  { 18, 59 }, { -8, 102 }, { -15, 100 }, { 0, 95 },
115  { -4, 75 }, { 2, 72 }, { -11, 75 }, { -3, 71 },
116  { 15, 46 }, { -13, 69 }, { 0, 62 }, { 0, 65 },
117  { 21, 37 }, { -15, 72 }, { 9, 57 }, { 16, 54 },
118  { 0, 62 }, { 12, 72 },
119 
120  /* 166 -> 196 */
121  { 24, 0 }, { 15, 9 }, { 8, 25 }, { 13, 18 },
122  { 15, 9 }, { 13, 19 }, { 10, 37 }, { 12, 18 },
123  { 6, 29 }, { 20, 33 }, { 15, 30 }, { 4, 45 },
124  { 1, 58 }, { 0, 62 }, { 7, 61 }, { 12, 38 },
125  { 11, 45 }, { 15, 39 }, { 11, 42 }, { 13, 44 },
126  { 16, 45 }, { 12, 41 }, { 10, 49 }, { 30, 34 },
127  { 18, 42 }, { 10, 55 }, { 17, 51 }, { 17, 46 },
128  { 0, 89 }, { 26, -19 }, { 22, -17 },
129 
130  /* 197 -> 226 */
131  { 26, -17 }, { 30, -25 }, { 28, -20 }, { 33, -23 },
132  { 37, -27 }, { 33, -23 }, { 40, -28 }, { 38, -17 },
133  { 33, -11 }, { 40, -15 }, { 41, -6 }, { 38, 1 },
134  { 41, 17 }, { 30, -6 }, { 27, 3 }, { 26, 22 },
135  { 37, -16 }, { 35, -4 }, { 38, -8 }, { 38, -3 },
136  { 37, 3 }, { 38, 5 }, { 42, 0 }, { 35, 16 },
137  { 39, 22 }, { 14, 48 }, { 27, 37 }, { 21, 60 },
138  { 12, 68 }, { 2, 97 },
139 
140  /* 227 -> 251 */
141  { -3, 71 }, { -6, 42 }, { -5, 50 }, { -3, 54 },
142  { -2, 62 }, { 0, 58 }, { 1, 63 }, { -2, 72 },
143  { -1, 74 }, { -9, 91 }, { -5, 67 }, { -5, 27 },
144  { -3, 39 }, { -2, 44 }, { 0, 46 }, { -16, 64 },
145  { -8, 68 }, { -10, 78 }, { -6, 77 }, { -10, 86 },
146  { -12, 92 }, { -15, 55 }, { -10, 60 }, { -6, 62 },
147  { -4, 65 },
148 
149  /* 252 -> 275 */
150  { -12, 73 }, { -8, 76 }, { -7, 80 }, { -9, 88 },
151  { -17, 110 },{ -11, 97 }, { -20, 84 }, { -11, 79 },
152  { -6, 73 }, { -4, 74 }, { -13, 86 }, { -13, 96 },
153  { -11, 97 }, { -19, 117 },{ -8, 78 }, { -5, 33 },
154  { -4, 48 }, { -2, 53 }, { -3, 62 }, { -13, 71 },
155  { -10, 79 }, { -12, 86 }, { -13, 90 }, { -14, 97 },
156 
157  /* 276 a bit special (not used, bypass is used instead) */
158  { 0, 0 },
159 
160  /* 277 -> 307 */
161  { -6, 93 }, { -6, 84 }, { -8, 79 }, { 0, 66 },
162  { -1, 71 }, { 0, 62 }, { -2, 60 }, { -2, 59 },
163  { -5, 75 }, { -3, 62 }, { -4, 58 }, { -9, 66 },
164  { -1, 79 }, { 0, 71 }, { 3, 68 }, { 10, 44 },
165  { -7, 62 }, { 15, 36 }, { 14, 40 }, { 16, 27 },
166  { 12, 29 }, { 1, 44 }, { 20, 36 }, { 18, 32 },
167  { 5, 42 }, { 1, 48 }, { 10, 62 }, { 17, 46 },
168  { 9, 64 }, { -12, 104 },{ -11, 97 },
169 
170  /* 308 -> 337 */
171  { -16, 96 }, { -7, 88 }, { -8, 85 }, { -7, 85 },
172  { -9, 85 }, { -13, 88 }, { 4, 66 }, { -3, 77 },
173  { -3, 76 }, { -6, 76 }, { 10, 58 }, { -1, 76 },
174  { -1, 83 }, { -7, 99 }, { -14, 95 }, { 2, 95 },
175  { 0, 76 }, { -5, 74 }, { 0, 70 }, { -11, 75 },
176  { 1, 68 }, { 0, 65 }, { -14, 73 }, { 3, 62 },
177  { 4, 62 }, { -1, 68 }, { -13, 75 }, { 11, 55 },
178  { 5, 64 }, { 12, 70 },
179 
180  /* 338 -> 368 */
181  { 15, 6 }, { 6, 19 }, { 7, 16 }, { 12, 14 },
182  { 18, 13 }, { 13, 11 }, { 13, 15 }, { 15, 16 },
183  { 12, 23 }, { 13, 23 }, { 15, 20 }, { 14, 26 },
184  { 14, 44 }, { 17, 40 }, { 17, 47 }, { 24, 17 },
185  { 21, 21 }, { 25, 22 }, { 31, 27 }, { 22, 29 },
186  { 19, 35 }, { 14, 50 }, { 10, 57 }, { 7, 63 },
187  { -2, 77 }, { -4, 82 }, { -3, 94 }, { 9, 69 },
188  { -12, 109 },{ 36, -35 }, { 36, -34 },
189 
190  /* 369 -> 398 */
191  { 32, -26 }, { 37, -30 }, { 44, -32 }, { 34, -18 },
192  { 34, -15 }, { 40, -15 }, { 33, -7 }, { 35, -5 },
193  { 33, 0 }, { 38, 2 }, { 33, 13 }, { 23, 35 },
194  { 13, 58 }, { 29, -3 }, { 26, 0 }, { 22, 30 },
195  { 31, -7 }, { 35, -15 }, { 34, -3 }, { 34, 3 },
196  { 36, -1 }, { 34, 5 }, { 32, 11 }, { 35, 5 },
197  { 34, 12 }, { 39, 11 }, { 30, 29 }, { 34, 26 },
198  { 29, 39 }, { 19, 66 },
199 
200  /* 399 -> 435 */
201  { 31, 21 }, { 31, 31 }, { 25, 50 },
202  { -17, 120 }, { -20, 112 }, { -18, 114 }, { -11, 85 },
203  { -15, 92 }, { -14, 89 }, { -26, 71 }, { -15, 81 },
204  { -14, 80 }, { 0, 68 }, { -14, 70 }, { -24, 56 },
205  { -23, 68 }, { -24, 50 }, { -11, 74 }, { 23, -13 },
206  { 26, -13 }, { 40, -15 }, { 49, -14 }, { 44, 3 },
207  { 45, 6 }, { 44, 34 }, { 33, 54 }, { 19, 82 },
208  { -3, 75 }, { -1, 23 }, { 1, 34 }, { 1, 43 },
209  { 0, 54 }, { -2, 55 }, { 0, 61 }, { 1, 64 },
210  { 0, 68 }, { -9, 92 },
211 
212  /* 436 -> 459 */
213  { -14, 106 }, { -13, 97 }, { -15, 90 }, { -12, 90 },
214  { -18, 88 }, { -10, 73 }, { -9, 79 }, { -14, 86 },
215  { -10, 73 }, { -10, 70 }, { -10, 69 }, { -5, 66 },
216  { -9, 64 }, { -5, 58 }, { 2, 59 }, { 21, -10 },
217  { 24, -11 }, { 28, -8 }, { 28, -1 }, { 29, 3 },
218  { 29, 9 }, { 35, 20 }, { 29, 36 }, { 14, 67 },
219 
220  /* 460 -> 1024 */
221  { -17, 123 }, { -12, 115 }, { -16, 122 }, { -11, 115 },
222  { -12, 63 }, { -2, 68 }, { -15, 84 }, { -13, 104 },
223  { -3, 70 }, { -8, 93 }, { -10, 90 }, { -30, 127 },
224  { -17, 123 }, { -12, 115 }, { -16, 122 }, { -11, 115 },
225  { -12, 63 }, { -2, 68 }, { -15, 84 }, { -13, 104 },
226  { -3, 70 }, { -8, 93 }, { -10, 90 }, { -30, 127 },
227  { -7, 93 }, { -11, 87 }, { -3, 77 }, { -5, 71 },
228  { -4, 63 }, { -4, 68 }, { -12, 84 }, { -7, 62 },
229  { -7, 65 }, { 8, 61 }, { 5, 56 }, { -2, 66 },
230  { 1, 64 }, { 0, 61 }, { -2, 78 }, { 1, 50 },
231  { 7, 52 }, { 10, 35 }, { 0, 44 }, { 11, 38 },
232  { 1, 45 }, { 0, 46 }, { 5, 44 }, { 31, 17 },
233  { 1, 51 }, { 7, 50 }, { 28, 19 }, { 16, 33 },
234  { 14, 62 }, { -13, 108 }, { -15, 100 }, { -13, 101 },
235  { -13, 91 }, { -12, 94 }, { -10, 88 }, { -16, 84 },
236  { -10, 86 }, { -7, 83 }, { -13, 87 }, { -19, 94 },
237  { 1, 70 }, { 0, 72 }, { -5, 74 }, { 18, 59 },
238  { -7, 93 }, { -11, 87 }, { -3, 77 }, { -5, 71 },
239  { -4, 63 }, { -4, 68 }, { -12, 84 }, { -7, 62 },
240  { -7, 65 }, { 8, 61 }, { 5, 56 }, { -2, 66 },
241  { 1, 64 }, { 0, 61 }, { -2, 78 }, { 1, 50 },
242  { 7, 52 }, { 10, 35 }, { 0, 44 }, { 11, 38 },
243  { 1, 45 }, { 0, 46 }, { 5, 44 }, { 31, 17 },
244  { 1, 51 }, { 7, 50 }, { 28, 19 }, { 16, 33 },
245  { 14, 62 }, { -13, 108 }, { -15, 100 }, { -13, 101 },
246  { -13, 91 }, { -12, 94 }, { -10, 88 }, { -16, 84 },
247  { -10, 86 }, { -7, 83 }, { -13, 87 }, { -19, 94 },
248  { 1, 70 }, { 0, 72 }, { -5, 74 }, { 18, 59 },
249  { 24, 0 }, { 15, 9 }, { 8, 25 }, { 13, 18 },
250  { 15, 9 }, { 13, 19 }, { 10, 37 }, { 12, 18 },
251  { 6, 29 }, { 20, 33 }, { 15, 30 }, { 4, 45 },
252  { 1, 58 }, { 0, 62 }, { 7, 61 }, { 12, 38 },
253  { 11, 45 }, { 15, 39 }, { 11, 42 }, { 13, 44 },
254  { 16, 45 }, { 12, 41 }, { 10, 49 }, { 30, 34 },
255  { 18, 42 }, { 10, 55 }, { 17, 51 }, { 17, 46 },
256  { 0, 89 }, { 26, -19 }, { 22, -17 }, { 26, -17 },
257  { 30, -25 }, { 28, -20 }, { 33, -23 }, { 37, -27 },
258  { 33, -23 }, { 40, -28 }, { 38, -17 }, { 33, -11 },
259  { 40, -15 }, { 41, -6 }, { 38, 1 }, { 41, 17 },
260  { 24, 0 }, { 15, 9 }, { 8, 25 }, { 13, 18 },
261  { 15, 9 }, { 13, 19 }, { 10, 37 }, { 12, 18 },
262  { 6, 29 }, { 20, 33 }, { 15, 30 }, { 4, 45 },
263  { 1, 58 }, { 0, 62 }, { 7, 61 }, { 12, 38 },
264  { 11, 45 }, { 15, 39 }, { 11, 42 }, { 13, 44 },
265  { 16, 45 }, { 12, 41 }, { 10, 49 }, { 30, 34 },
266  { 18, 42 }, { 10, 55 }, { 17, 51 }, { 17, 46 },
267  { 0, 89 }, { 26, -19 }, { 22, -17 }, { 26, -17 },
268  { 30, -25 }, { 28, -20 }, { 33, -23 }, { 37, -27 },
269  { 33, -23 }, { 40, -28 }, { 38, -17 }, { 33, -11 },
270  { 40, -15 }, { 41, -6 }, { 38, 1 }, { 41, 17 },
271  { -17, 120 }, { -20, 112 }, { -18, 114 }, { -11, 85 },
272  { -15, 92 }, { -14, 89 }, { -26, 71 }, { -15, 81 },
273  { -14, 80 }, { 0, 68 }, { -14, 70 }, { -24, 56 },
274  { -23, 68 }, { -24, 50 }, { -11, 74 }, { -14, 106 },
275  { -13, 97 }, { -15, 90 }, { -12, 90 }, { -18, 88 },
276  { -10, 73 }, { -9, 79 }, { -14, 86 }, { -10, 73 },
277  { -10, 70 }, { -10, 69 }, { -5, 66 }, { -9, 64 },
278  { -5, 58 }, { 2, 59 }, { 23, -13 }, { 26, -13 },
279  { 40, -15 }, { 49, -14 }, { 44, 3 }, { 45, 6 },
280  { 44, 34 }, { 33, 54 }, { 19, 82 }, { 21, -10 },
281  { 24, -11 }, { 28, -8 }, { 28, -1 }, { 29, 3 },
282  { 29, 9 }, { 35, 20 }, { 29, 36 }, { 14, 67 },
283  { -3, 75 }, { -1, 23 }, { 1, 34 }, { 1, 43 },
284  { 0, 54 }, { -2, 55 }, { 0, 61 }, { 1, 64 },
285  { 0, 68 }, { -9, 92 }, { -17, 120 }, { -20, 112 },
286  { -18, 114 }, { -11, 85 }, { -15, 92 }, { -14, 89 },
287  { -26, 71 }, { -15, 81 }, { -14, 80 }, { 0, 68 },
288  { -14, 70 }, { -24, 56 }, { -23, 68 }, { -24, 50 },
289  { -11, 74 }, { -14, 106 }, { -13, 97 }, { -15, 90 },
290  { -12, 90 }, { -18, 88 }, { -10, 73 }, { -9, 79 },
291  { -14, 86 }, { -10, 73 }, { -10, 70 }, { -10, 69 },
292  { -5, 66 }, { -9, 64 }, { -5, 58 }, { 2, 59 },
293  { 23, -13 }, { 26, -13 }, { 40, -15 }, { 49, -14 },
294  { 44, 3 }, { 45, 6 }, { 44, 34 }, { 33, 54 },
295  { 19, 82 }, { 21, -10 }, { 24, -11 }, { 28, -8 },
296  { 28, -1 }, { 29, 3 }, { 29, 9 }, { 35, 20 },
297  { 29, 36 }, { 14, 67 }, { -3, 75 }, { -1, 23 },
298  { 1, 34 }, { 1, 43 }, { 0, 54 }, { -2, 55 },
299  { 0, 61 }, { 1, 64 }, { 0, 68 }, { -9, 92 },
300  { -6, 93 }, { -6, 84 }, { -8, 79 }, { 0, 66 },
301  { -1, 71 }, { 0, 62 }, { -2, 60 }, { -2, 59 },
302  { -5, 75 }, { -3, 62 }, { -4, 58 }, { -9, 66 },
303  { -1, 79 }, { 0, 71 }, { 3, 68 }, { 10, 44 },
304  { -7, 62 }, { 15, 36 }, { 14, 40 }, { 16, 27 },
305  { 12, 29 }, { 1, 44 }, { 20, 36 }, { 18, 32 },
306  { 5, 42 }, { 1, 48 }, { 10, 62 }, { 17, 46 },
307  { 9, 64 }, { -12, 104 }, { -11, 97 }, { -16, 96 },
308  { -7, 88 }, { -8, 85 }, { -7, 85 }, { -9, 85 },
309  { -13, 88 }, { 4, 66 }, { -3, 77 }, { -3, 76 },
310  { -6, 76 }, { 10, 58 }, { -1, 76 }, { -1, 83 },
311  { -6, 93 }, { -6, 84 }, { -8, 79 }, { 0, 66 },
312  { -1, 71 }, { 0, 62 }, { -2, 60 }, { -2, 59 },
313  { -5, 75 }, { -3, 62 }, { -4, 58 }, { -9, 66 },
314  { -1, 79 }, { 0, 71 }, { 3, 68 }, { 10, 44 },
315  { -7, 62 }, { 15, 36 }, { 14, 40 }, { 16, 27 },
316  { 12, 29 }, { 1, 44 }, { 20, 36 }, { 18, 32 },
317  { 5, 42 }, { 1, 48 }, { 10, 62 }, { 17, 46 },
318  { 9, 64 }, { -12, 104 }, { -11, 97 }, { -16, 96 },
319  { -7, 88 }, { -8, 85 }, { -7, 85 }, { -9, 85 },
320  { -13, 88 }, { 4, 66 }, { -3, 77 }, { -3, 76 },
321  { -6, 76 }, { 10, 58 }, { -1, 76 }, { -1, 83 },
322  { 15, 6 }, { 6, 19 }, { 7, 16 }, { 12, 14 },
323  { 18, 13 }, { 13, 11 }, { 13, 15 }, { 15, 16 },
324  { 12, 23 }, { 13, 23 }, { 15, 20 }, { 14, 26 },
325  { 14, 44 }, { 17, 40 }, { 17, 47 }, { 24, 17 },
326  { 21, 21 }, { 25, 22 }, { 31, 27 }, { 22, 29 },
327  { 19, 35 }, { 14, 50 }, { 10, 57 }, { 7, 63 },
328  { -2, 77 }, { -4, 82 }, { -3, 94 }, { 9, 69 },
329  { -12, 109 }, { 36, -35 }, { 36, -34 }, { 32, -26 },
330  { 37, -30 }, { 44, -32 }, { 34, -18 }, { 34, -15 },
331  { 40, -15 }, { 33, -7 }, { 35, -5 }, { 33, 0 },
332  { 38, 2 }, { 33, 13 }, { 23, 35 }, { 13, 58 },
333  { 15, 6 }, { 6, 19 }, { 7, 16 }, { 12, 14 },
334  { 18, 13 }, { 13, 11 }, { 13, 15 }, { 15, 16 },
335  { 12, 23 }, { 13, 23 }, { 15, 20 }, { 14, 26 },
336  { 14, 44 }, { 17, 40 }, { 17, 47 }, { 24, 17 },
337  { 21, 21 }, { 25, 22 }, { 31, 27 }, { 22, 29 },
338  { 19, 35 }, { 14, 50 }, { 10, 57 }, { 7, 63 },
339  { -2, 77 }, { -4, 82 }, { -3, 94 }, { 9, 69 },
340  { -12, 109 }, { 36, -35 }, { 36, -34 }, { 32, -26 },
341  { 37, -30 }, { 44, -32 }, { 34, -18 }, { 34, -15 },
342  { 40, -15 }, { 33, -7 }, { 35, -5 }, { 33, 0 },
343  { 38, 2 }, { 33, 13 }, { 23, 35 }, { 13, 58 },
344  { -3, 71 }, { -6, 42 }, { -5, 50 }, { -3, 54 },
345  { -2, 62 }, { 0, 58 }, { 1, 63 }, { -2, 72 },
346  { -1, 74 }, { -9, 91 }, { -5, 67 }, { -5, 27 },
347  { -3, 39 }, { -2, 44 }, { 0, 46 }, { -16, 64 },
348  { -8, 68 }, { -10, 78 }, { -6, 77 }, { -10, 86 },
349  { -12, 92 }, { -15, 55 }, { -10, 60 }, { -6, 62 },
350  { -4, 65 }, { -12, 73 }, { -8, 76 }, { -7, 80 },
351  { -9, 88 }, { -17, 110 }, { -3, 71 }, { -6, 42 },
352  { -5, 50 }, { -3, 54 }, { -2, 62 }, { 0, 58 },
353  { 1, 63 }, { -2, 72 }, { -1, 74 }, { -9, 91 },
354  { -5, 67 }, { -5, 27 }, { -3, 39 }, { -2, 44 },
355  { 0, 46 }, { -16, 64 }, { -8, 68 }, { -10, 78 },
356  { -6, 77 }, { -10, 86 }, { -12, 92 }, { -15, 55 },
357  { -10, 60 }, { -6, 62 }, { -4, 65 }, { -12, 73 },
358  { -8, 76 }, { -7, 80 }, { -9, 88 }, { -17, 110 },
359  { -3, 70 }, { -8, 93 }, { -10, 90 }, { -30, 127 },
360  { -3, 70 }, { -8, 93 }, { -10, 90 }, { -30, 127 },
361  { -3, 70 }, { -8, 93 }, { -10, 90 }, { -30, 127 }
362 };
363 
364 static const int8_t cabac_context_init_PB[3][1024][2] =
365 {
366  /* i_cabac_init_idc == 0 */
367  {
368  /* 0 - 10 */
369  { 20, -15 }, { 2, 54 }, { 3, 74 }, { 20, -15 },
370  { 2, 54 }, { 3, 74 }, { -28, 127 }, { -23, 104 },
371  { -6, 53 }, { -1, 54 }, { 7, 51 },
372 
373  /* 11 - 23 */
374  { 23, 33 }, { 23, 2 }, { 21, 0 }, { 1, 9 },
375  { 0, 49 }, { -37, 118 }, { 5, 57 }, { -13, 78 },
376  { -11, 65 }, { 1, 62 }, { 12, 49 }, { -4, 73 },
377  { 17, 50 },
378 
379  /* 24 - 39 */
380  { 18, 64 }, { 9, 43 }, { 29, 0 }, { 26, 67 },
381  { 16, 90 }, { 9, 104 }, { -46, 127 }, { -20, 104 },
382  { 1, 67 }, { -13, 78 }, { -11, 65 }, { 1, 62 },
383  { -6, 86 }, { -17, 95 }, { -6, 61 }, { 9, 45 },
384 
385  /* 40 - 53 */
386  { -3, 69 }, { -6, 81 }, { -11, 96 }, { 6, 55 },
387  { 7, 67 }, { -5, 86 }, { 2, 88 }, { 0, 58 },
388  { -3, 76 }, { -10, 94 }, { 5, 54 }, { 4, 69 },
389  { -3, 81 }, { 0, 88 },
390 
391  /* 54 - 59 */
392  { -7, 67 }, { -5, 74 }, { -4, 74 }, { -5, 80 },
393  { -7, 72 }, { 1, 58 },
394 
395  /* 60 - 69 */
396  { 0, 41 }, { 0, 63 }, { 0, 63 }, { 0, 63 },
397  { -9, 83 }, { 4, 86 }, { 0, 97 }, { -7, 72 },
398  { 13, 41 }, { 3, 62 },
399 
400  /* 70 - 87 */
401  { 0, 45 }, { -4, 78 }, { -3, 96 }, { -27, 126 },
402  { -28, 98 }, { -25, 101 }, { -23, 67 }, { -28, 82 },
403  { -20, 94 }, { -16, 83 }, { -22, 110 }, { -21, 91 },
404  { -18, 102 }, { -13, 93 }, { -29, 127 }, { -7, 92 },
405  { -5, 89 }, { -7, 96 }, { -13, 108 }, { -3, 46 },
406  { -1, 65 }, { -1, 57 }, { -9, 93 }, { -3, 74 },
407  { -9, 92 }, { -8, 87 }, { -23, 126 }, { 5, 54 },
408  { 6, 60 }, { 6, 59 }, { 6, 69 }, { -1, 48 },
409  { 0, 68 }, { -4, 69 }, { -8, 88 },
410 
411  /* 105 -> 165 */
412  { -2, 85 }, { -6, 78 }, { -1, 75 }, { -7, 77 },
413  { 2, 54 }, { 5, 50 }, { -3, 68 }, { 1, 50 },
414  { 6, 42 }, { -4, 81 }, { 1, 63 }, { -4, 70 },
415  { 0, 67 }, { 2, 57 }, { -2, 76 }, { 11, 35 },
416  { 4, 64 }, { 1, 61 }, { 11, 35 }, { 18, 25 },
417  { 12, 24 }, { 13, 29 }, { 13, 36 }, { -10, 93 },
418  { -7, 73 }, { -2, 73 }, { 13, 46 }, { 9, 49 },
419  { -7, 100 }, { 9, 53 }, { 2, 53 }, { 5, 53 },
420  { -2, 61 }, { 0, 56 }, { 0, 56 }, { -13, 63 },
421  { -5, 60 }, { -1, 62 }, { 4, 57 }, { -6, 69 },
422  { 4, 57 }, { 14, 39 }, { 4, 51 }, { 13, 68 },
423  { 3, 64 }, { 1, 61 }, { 9, 63 }, { 7, 50 },
424  { 16, 39 }, { 5, 44 }, { 4, 52 }, { 11, 48 },
425  { -5, 60 }, { -1, 59 }, { 0, 59 }, { 22, 33 },
426  { 5, 44 }, { 14, 43 }, { -1, 78 }, { 0, 60 },
427  { 9, 69 },
428 
429  /* 166 - 226 */
430  { 11, 28 }, { 2, 40 }, { 3, 44 }, { 0, 49 },
431  { 0, 46 }, { 2, 44 }, { 2, 51 }, { 0, 47 },
432  { 4, 39 }, { 2, 62 }, { 6, 46 }, { 0, 54 },
433  { 3, 54 }, { 2, 58 }, { 4, 63 }, { 6, 51 },
434  { 6, 57 }, { 7, 53 }, { 6, 52 }, { 6, 55 },
435  { 11, 45 }, { 14, 36 }, { 8, 53 }, { -1, 82 },
436  { 7, 55 }, { -3, 78 }, { 15, 46 }, { 22, 31 },
437  { -1, 84 }, { 25, 7 }, { 30, -7 }, { 28, 3 },
438  { 28, 4 }, { 32, 0 }, { 34, -1 }, { 30, 6 },
439  { 30, 6 }, { 32, 9 }, { 31, 19 }, { 26, 27 },
440  { 26, 30 }, { 37, 20 }, { 28, 34 }, { 17, 70 },
441  { 1, 67 }, { 5, 59 }, { 9, 67 }, { 16, 30 },
442  { 18, 32 }, { 18, 35 }, { 22, 29 }, { 24, 31 },
443  { 23, 38 }, { 18, 43 }, { 20, 41 }, { 11, 63 },
444  { 9, 59 }, { 9, 64 }, { -1, 94 }, { -2, 89 },
445  { -9, 108 },
446 
447  /* 227 - 275 */
448  { -6, 76 }, { -2, 44 }, { 0, 45 }, { 0, 52 },
449  { -3, 64 }, { -2, 59 }, { -4, 70 }, { -4, 75 },
450  { -8, 82 }, { -17, 102 }, { -9, 77 }, { 3, 24 },
451  { 0, 42 }, { 0, 48 }, { 0, 55 }, { -6, 59 },
452  { -7, 71 }, { -12, 83 }, { -11, 87 }, { -30, 119 },
453  { 1, 58 }, { -3, 29 }, { -1, 36 }, { 1, 38 },
454  { 2, 43 }, { -6, 55 }, { 0, 58 }, { 0, 64 },
455  { -3, 74 }, { -10, 90 }, { 0, 70 }, { -4, 29 },
456  { 5, 31 }, { 7, 42 }, { 1, 59 }, { -2, 58 },
457  { -3, 72 }, { -3, 81 }, { -11, 97 }, { 0, 58 },
458  { 8, 5 }, { 10, 14 }, { 14, 18 }, { 13, 27 },
459  { 2, 40 }, { 0, 58 }, { -3, 70 }, { -6, 79 },
460  { -8, 85 },
461 
462  /* 276 a bit special (not used, bypass is used instead) */
463  { 0, 0 },
464 
465  /* 277 - 337 */
466  { -13, 106 }, { -16, 106 }, { -10, 87 }, { -21, 114 },
467  { -18, 110 }, { -14, 98 }, { -22, 110 }, { -21, 106 },
468  { -18, 103 }, { -21, 107 }, { -23, 108 }, { -26, 112 },
469  { -10, 96 }, { -12, 95 }, { -5, 91 }, { -9, 93 },
470  { -22, 94 }, { -5, 86 }, { 9, 67 }, { -4, 80 },
471  { -10, 85 }, { -1, 70 }, { 7, 60 }, { 9, 58 },
472  { 5, 61 }, { 12, 50 }, { 15, 50 }, { 18, 49 },
473  { 17, 54 }, { 10, 41 }, { 7, 46 }, { -1, 51 },
474  { 7, 49 }, { 8, 52 }, { 9, 41 }, { 6, 47 },
475  { 2, 55 }, { 13, 41 }, { 10, 44 }, { 6, 50 },
476  { 5, 53 }, { 13, 49 }, { 4, 63 }, { 6, 64 },
477  { -2, 69 }, { -2, 59 }, { 6, 70 }, { 10, 44 },
478  { 9, 31 }, { 12, 43 }, { 3, 53 }, { 14, 34 },
479  { 10, 38 }, { -3, 52 }, { 13, 40 }, { 17, 32 },
480  { 7, 44 }, { 7, 38 }, { 13, 50 }, { 10, 57 },
481  { 26, 43 },
482 
483  /* 338 - 398 */
484  { 14, 11 }, { 11, 14 }, { 9, 11 }, { 18, 11 },
485  { 21, 9 }, { 23, -2 }, { 32, -15 }, { 32, -15 },
486  { 34, -21 }, { 39, -23 }, { 42, -33 }, { 41, -31 },
487  { 46, -28 }, { 38, -12 }, { 21, 29 }, { 45, -24 },
488  { 53, -45 }, { 48, -26 }, { 65, -43 }, { 43, -19 },
489  { 39, -10 }, { 30, 9 }, { 18, 26 }, { 20, 27 },
490  { 0, 57 }, { -14, 82 }, { -5, 75 }, { -19, 97 },
491  { -35, 125 }, { 27, 0 }, { 28, 0 }, { 31, -4 },
492  { 27, 6 }, { 34, 8 }, { 30, 10 }, { 24, 22 },
493  { 33, 19 }, { 22, 32 }, { 26, 31 }, { 21, 41 },
494  { 26, 44 }, { 23, 47 }, { 16, 65 }, { 14, 71 },
495  { 8, 60 }, { 6, 63 }, { 17, 65 }, { 21, 24 },
496  { 23, 20 }, { 26, 23 }, { 27, 32 }, { 28, 23 },
497  { 28, 24 }, { 23, 40 }, { 24, 32 }, { 28, 29 },
498  { 23, 42 }, { 19, 57 }, { 22, 53 }, { 22, 61 },
499  { 11, 86 },
500 
501  /* 399 - 435 */
502  { 12, 40 }, { 11, 51 }, { 14, 59 },
503  { -4, 79 }, { -7, 71 }, { -5, 69 }, { -9, 70 },
504  { -8, 66 }, { -10, 68 }, { -19, 73 }, { -12, 69 },
505  { -16, 70 }, { -15, 67 }, { -20, 62 }, { -19, 70 },
506  { -16, 66 }, { -22, 65 }, { -20, 63 }, { 9, -2 },
507  { 26, -9 }, { 33, -9 }, { 39, -7 }, { 41, -2 },
508  { 45, 3 }, { 49, 9 }, { 45, 27 }, { 36, 59 },
509  { -6, 66 }, { -7, 35 }, { -7, 42 }, { -8, 45 },
510  { -5, 48 }, { -12, 56 }, { -6, 60 }, { -5, 62 },
511  { -8, 66 }, { -8, 76 },
512 
513  /* 436 - 459 */
514  { -5, 85 }, { -6, 81 }, { -10, 77 }, { -7, 81 },
515  { -17, 80 }, { -18, 73 }, { -4, 74 }, { -10, 83 },
516  { -9, 71 }, { -9, 67 }, { -1, 61 }, { -8, 66 },
517  { -14, 66 }, { 0, 59 }, { 2, 59 }, { 21, -13 },
518  { 33, -14 }, { 39, -7 }, { 46, -2 }, { 51, 2 },
519  { 60, 6 }, { 61, 17 }, { 55, 34 }, { 42, 62 },
520 
521  /* 460 - 1024 */
522  { -7, 92 }, { -5, 89 }, { -7, 96 }, { -13, 108 },
523  { -3, 46 }, { -1, 65 }, { -1, 57 }, { -9, 93 },
524  { -3, 74 }, { -9, 92 }, { -8, 87 }, { -23, 126 },
525  { -7, 92 }, { -5, 89 }, { -7, 96 }, { -13, 108 },
526  { -3, 46 }, { -1, 65 }, { -1, 57 }, { -9, 93 },
527  { -3, 74 }, { -9, 92 }, { -8, 87 }, { -23, 126 },
528  { -2, 85 }, { -6, 78 }, { -1, 75 }, { -7, 77 },
529  { 2, 54 }, { 5, 50 }, { -3, 68 }, { 1, 50 },
530  { 6, 42 }, { -4, 81 }, { 1, 63 }, { -4, 70 },
531  { 0, 67 }, { 2, 57 }, { -2, 76 }, { 11, 35 },
532  { 4, 64 }, { 1, 61 }, { 11, 35 }, { 18, 25 },
533  { 12, 24 }, { 13, 29 }, { 13, 36 }, { -10, 93 },
534  { -7, 73 }, { -2, 73 }, { 13, 46 }, { 9, 49 },
535  { -7, 100 }, { 9, 53 }, { 2, 53 }, { 5, 53 },
536  { -2, 61 }, { 0, 56 }, { 0, 56 }, { -13, 63 },
537  { -5, 60 }, { -1, 62 }, { 4, 57 }, { -6, 69 },
538  { 4, 57 }, { 14, 39 }, { 4, 51 }, { 13, 68 },
539  { -2, 85 }, { -6, 78 }, { -1, 75 }, { -7, 77 },
540  { 2, 54 }, { 5, 50 }, { -3, 68 }, { 1, 50 },
541  { 6, 42 }, { -4, 81 }, { 1, 63 }, { -4, 70 },
542  { 0, 67 }, { 2, 57 }, { -2, 76 }, { 11, 35 },
543  { 4, 64 }, { 1, 61 }, { 11, 35 }, { 18, 25 },
544  { 12, 24 }, { 13, 29 }, { 13, 36 }, { -10, 93 },
545  { -7, 73 }, { -2, 73 }, { 13, 46 }, { 9, 49 },
546  { -7, 100 }, { 9, 53 }, { 2, 53 }, { 5, 53 },
547  { -2, 61 }, { 0, 56 }, { 0, 56 }, { -13, 63 },
548  { -5, 60 }, { -1, 62 }, { 4, 57 }, { -6, 69 },
549  { 4, 57 }, { 14, 39 }, { 4, 51 }, { 13, 68 },
550  { 11, 28 }, { 2, 40 }, { 3, 44 }, { 0, 49 },
551  { 0, 46 }, { 2, 44 }, { 2, 51 }, { 0, 47 },
552  { 4, 39 }, { 2, 62 }, { 6, 46 }, { 0, 54 },
553  { 3, 54 }, { 2, 58 }, { 4, 63 }, { 6, 51 },
554  { 6, 57 }, { 7, 53 }, { 6, 52 }, { 6, 55 },
555  { 11, 45 }, { 14, 36 }, { 8, 53 }, { -1, 82 },
556  { 7, 55 }, { -3, 78 }, { 15, 46 }, { 22, 31 },
557  { -1, 84 }, { 25, 7 }, { 30, -7 }, { 28, 3 },
558  { 28, 4 }, { 32, 0 }, { 34, -1 }, { 30, 6 },
559  { 30, 6 }, { 32, 9 }, { 31, 19 }, { 26, 27 },
560  { 26, 30 }, { 37, 20 }, { 28, 34 }, { 17, 70 },
561  { 11, 28 }, { 2, 40 }, { 3, 44 }, { 0, 49 },
562  { 0, 46 }, { 2, 44 }, { 2, 51 }, { 0, 47 },
563  { 4, 39 }, { 2, 62 }, { 6, 46 }, { 0, 54 },
564  { 3, 54 }, { 2, 58 }, { 4, 63 }, { 6, 51 },
565  { 6, 57 }, { 7, 53 }, { 6, 52 }, { 6, 55 },
566  { 11, 45 }, { 14, 36 }, { 8, 53 }, { -1, 82 },
567  { 7, 55 }, { -3, 78 }, { 15, 46 }, { 22, 31 },
568  { -1, 84 }, { 25, 7 }, { 30, -7 }, { 28, 3 },
569  { 28, 4 }, { 32, 0 }, { 34, -1 }, { 30, 6 },
570  { 30, 6 }, { 32, 9 }, { 31, 19 }, { 26, 27 },
571  { 26, 30 }, { 37, 20 }, { 28, 34 }, { 17, 70 },
572  { -4, 79 }, { -7, 71 }, { -5, 69 }, { -9, 70 },
573  { -8, 66 }, { -10, 68 }, { -19, 73 }, { -12, 69 },
574  { -16, 70 }, { -15, 67 }, { -20, 62 }, { -19, 70 },
575  { -16, 66 }, { -22, 65 }, { -20, 63 }, { -5, 85 },
576  { -6, 81 }, { -10, 77 }, { -7, 81 }, { -17, 80 },
577  { -18, 73 }, { -4, 74 }, { -10, 83 }, { -9, 71 },
578  { -9, 67 }, { -1, 61 }, { -8, 66 }, { -14, 66 },
579  { 0, 59 }, { 2, 59 }, { 9, -2 }, { 26, -9 },
580  { 33, -9 }, { 39, -7 }, { 41, -2 }, { 45, 3 },
581  { 49, 9 }, { 45, 27 }, { 36, 59 }, { 21, -13 },
582  { 33, -14 }, { 39, -7 }, { 46, -2 }, { 51, 2 },
583  { 60, 6 }, { 61, 17 }, { 55, 34 }, { 42, 62 },
584  { -6, 66 }, { -7, 35 }, { -7, 42 }, { -8, 45 },
585  { -5, 48 }, { -12, 56 }, { -6, 60 }, { -5, 62 },
586  { -8, 66 }, { -8, 76 }, { -4, 79 }, { -7, 71 },
587  { -5, 69 }, { -9, 70 }, { -8, 66 }, { -10, 68 },
588  { -19, 73 }, { -12, 69 }, { -16, 70 }, { -15, 67 },
589  { -20, 62 }, { -19, 70 }, { -16, 66 }, { -22, 65 },
590  { -20, 63 }, { -5, 85 }, { -6, 81 }, { -10, 77 },
591  { -7, 81 }, { -17, 80 }, { -18, 73 }, { -4, 74 },
592  { -10, 83 }, { -9, 71 }, { -9, 67 }, { -1, 61 },
593  { -8, 66 }, { -14, 66 }, { 0, 59 }, { 2, 59 },
594  { 9, -2 }, { 26, -9 }, { 33, -9 }, { 39, -7 },
595  { 41, -2 }, { 45, 3 }, { 49, 9 }, { 45, 27 },
596  { 36, 59 }, { 21, -13 }, { 33, -14 }, { 39, -7 },
597  { 46, -2 }, { 51, 2 }, { 60, 6 }, { 61, 17 },
598  { 55, 34 }, { 42, 62 }, { -6, 66 }, { -7, 35 },
599  { -7, 42 }, { -8, 45 }, { -5, 48 }, { -12, 56 },
600  { -6, 60 }, { -5, 62 }, { -8, 66 }, { -8, 76 },
601  { -13, 106 }, { -16, 106 }, { -10, 87 }, { -21, 114 },
602  { -18, 110 }, { -14, 98 }, { -22, 110 }, { -21, 106 },
603  { -18, 103 }, { -21, 107 }, { -23, 108 }, { -26, 112 },
604  { -10, 96 }, { -12, 95 }, { -5, 91 }, { -9, 93 },
605  { -22, 94 }, { -5, 86 }, { 9, 67 }, { -4, 80 },
606  { -10, 85 }, { -1, 70 }, { 7, 60 }, { 9, 58 },
607  { 5, 61 }, { 12, 50 }, { 15, 50 }, { 18, 49 },
608  { 17, 54 }, { 10, 41 }, { 7, 46 }, { -1, 51 },
609  { 7, 49 }, { 8, 52 }, { 9, 41 }, { 6, 47 },
610  { 2, 55 }, { 13, 41 }, { 10, 44 }, { 6, 50 },
611  { 5, 53 }, { 13, 49 }, { 4, 63 }, { 6, 64 },
612  { -13, 106 }, { -16, 106 }, { -10, 87 }, { -21, 114 },
613  { -18, 110 }, { -14, 98 }, { -22, 110 }, { -21, 106 },
614  { -18, 103 }, { -21, 107 }, { -23, 108 }, { -26, 112 },
615  { -10, 96 }, { -12, 95 }, { -5, 91 }, { -9, 93 },
616  { -22, 94 }, { -5, 86 }, { 9, 67 }, { -4, 80 },
617  { -10, 85 }, { -1, 70 }, { 7, 60 }, { 9, 58 },
618  { 5, 61 }, { 12, 50 }, { 15, 50 }, { 18, 49 },
619  { 17, 54 }, { 10, 41 }, { 7, 46 }, { -1, 51 },
620  { 7, 49 }, { 8, 52 }, { 9, 41 }, { 6, 47 },
621  { 2, 55 }, { 13, 41 }, { 10, 44 }, { 6, 50 },
622  { 5, 53 }, { 13, 49 }, { 4, 63 }, { 6, 64 },
623  { 14, 11 }, { 11, 14 }, { 9, 11 }, { 18, 11 },
624  { 21, 9 }, { 23, -2 }, { 32, -15 }, { 32, -15 },
625  { 34, -21 }, { 39, -23 }, { 42, -33 }, { 41, -31 },
626  { 46, -28 }, { 38, -12 }, { 21, 29 }, { 45, -24 },
627  { 53, -45 }, { 48, -26 }, { 65, -43 }, { 43, -19 },
628  { 39, -10 }, { 30, 9 }, { 18, 26 }, { 20, 27 },
629  { 0, 57 }, { -14, 82 }, { -5, 75 }, { -19, 97 },
630  { -35, 125 }, { 27, 0 }, { 28, 0 }, { 31, -4 },
631  { 27, 6 }, { 34, 8 }, { 30, 10 }, { 24, 22 },
632  { 33, 19 }, { 22, 32 }, { 26, 31 }, { 21, 41 },
633  { 26, 44 }, { 23, 47 }, { 16, 65 }, { 14, 71 },
634  { 14, 11 }, { 11, 14 }, { 9, 11 }, { 18, 11 },
635  { 21, 9 }, { 23, -2 }, { 32, -15 }, { 32, -15 },
636  { 34, -21 }, { 39, -23 }, { 42, -33 }, { 41, -31 },
637  { 46, -28 }, { 38, -12 }, { 21, 29 }, { 45, -24 },
638  { 53, -45 }, { 48, -26 }, { 65, -43 }, { 43, -19 },
639  { 39, -10 }, { 30, 9 }, { 18, 26 }, { 20, 27 },
640  { 0, 57 }, { -14, 82 }, { -5, 75 }, { -19, 97 },
641  { -35, 125 }, { 27, 0 }, { 28, 0 }, { 31, -4 },
642  { 27, 6 }, { 34, 8 }, { 30, 10 }, { 24, 22 },
643  { 33, 19 }, { 22, 32 }, { 26, 31 }, { 21, 41 },
644  { 26, 44 }, { 23, 47 }, { 16, 65 }, { 14, 71 },
645  { -6, 76 }, { -2, 44 }, { 0, 45 }, { 0, 52 },
646  { -3, 64 }, { -2, 59 }, { -4, 70 }, { -4, 75 },
647  { -8, 82 }, { -17, 102 }, { -9, 77 }, { 3, 24 },
648  { 0, 42 }, { 0, 48 }, { 0, 55 }, { -6, 59 },
649  { -7, 71 }, { -12, 83 }, { -11, 87 }, { -30, 119 },
650  { 1, 58 }, { -3, 29 }, { -1, 36 }, { 1, 38 },
651  { 2, 43 }, { -6, 55 }, { 0, 58 }, { 0, 64 },
652  { -3, 74 }, { -10, 90 }, { -6, 76 }, { -2, 44 },
653  { 0, 45 }, { 0, 52 }, { -3, 64 }, { -2, 59 },
654  { -4, 70 }, { -4, 75 }, { -8, 82 }, { -17, 102 },
655  { -9, 77 }, { 3, 24 }, { 0, 42 }, { 0, 48 },
656  { 0, 55 }, { -6, 59 }, { -7, 71 }, { -12, 83 },
657  { -11, 87 }, { -30, 119 }, { 1, 58 }, { -3, 29 },
658  { -1, 36 }, { 1, 38 }, { 2, 43 }, { -6, 55 },
659  { 0, 58 }, { 0, 64 }, { -3, 74 }, { -10, 90 },
660  { -3, 74 }, { -9, 92 }, { -8, 87 }, { -23, 126 },
661  { -3, 74 }, { -9, 92 }, { -8, 87 }, { -23, 126 },
662  { -3, 74 }, { -9, 92 }, { -8, 87 }, { -23, 126 }
663  },
664 
665  /* i_cabac_init_idc == 1 */
666  {
667  /* 0 - 10 */
668  { 20, -15 }, { 2, 54 }, { 3, 74 }, { 20, -15 },
669  { 2, 54 }, { 3, 74 }, { -28, 127 }, { -23, 104 },
670  { -6, 53 }, { -1, 54 }, { 7, 51 },
671 
672  /* 11 - 23 */
673  { 22, 25 }, { 34, 0 }, { 16, 0 }, { -2, 9 },
674  { 4, 41 }, { -29, 118 }, { 2, 65 }, { -6, 71 },
675  { -13, 79 }, { 5, 52 }, { 9, 50 }, { -3, 70 },
676  { 10, 54 },
677 
678  /* 24 - 39 */
679  { 26, 34 }, { 19, 22 }, { 40, 0 }, { 57, 2 },
680  { 41, 36 }, { 26, 69 }, { -45, 127 }, { -15, 101 },
681  { -4, 76 }, { -6, 71 }, { -13, 79 }, { 5, 52 },
682  { 6, 69 }, { -13, 90 }, { 0, 52 }, { 8, 43 },
683 
684  /* 40 - 53 */
685  { -2, 69 },{ -5, 82 },{ -10, 96 },{ 2, 59 },
686  { 2, 75 },{ -3, 87 },{ -3, 100 },{ 1, 56 },
687  { -3, 74 },{ -6, 85 },{ 0, 59 },{ -3, 81 },
688  { -7, 86 },{ -5, 95 },
689 
690  /* 54 - 59 */
691  { -1, 66 },{ -1, 77 },{ 1, 70 },{ -2, 86 },
692  { -5, 72 },{ 0, 61 },
693 
694  /* 60 - 69 */
695  { 0, 41 }, { 0, 63 }, { 0, 63 }, { 0, 63 },
696  { -9, 83 }, { 4, 86 }, { 0, 97 }, { -7, 72 },
697  { 13, 41 }, { 3, 62 },
698 
699  /* 70 - 104 */
700  { 13, 15 }, { 7, 51 }, { 2, 80 }, { -39, 127 },
701  { -18, 91 }, { -17, 96 }, { -26, 81 }, { -35, 98 },
702  { -24, 102 }, { -23, 97 }, { -27, 119 }, { -24, 99 },
703  { -21, 110 }, { -18, 102 }, { -36, 127 }, { 0, 80 },
704  { -5, 89 }, { -7, 94 }, { -4, 92 }, { 0, 39 },
705  { 0, 65 }, { -15, 84 }, { -35, 127 }, { -2, 73 },
706  { -12, 104 }, { -9, 91 }, { -31, 127 }, { 3, 55 },
707  { 7, 56 }, { 7, 55 }, { 8, 61 }, { -3, 53 },
708  { 0, 68 }, { -7, 74 }, { -9, 88 },
709 
710  /* 105 -> 165 */
711  { -13, 103 }, { -13, 91 }, { -9, 89 }, { -14, 92 },
712  { -8, 76 }, { -12, 87 }, { -23, 110 }, { -24, 105 },
713  { -10, 78 }, { -20, 112 }, { -17, 99 }, { -78, 127 },
714  { -70, 127 }, { -50, 127 }, { -46, 127 }, { -4, 66 },
715  { -5, 78 }, { -4, 71 }, { -8, 72 }, { 2, 59 },
716  { -1, 55 }, { -7, 70 }, { -6, 75 }, { -8, 89 },
717  { -34, 119 }, { -3, 75 }, { 32, 20 }, { 30, 22 },
718  { -44, 127 }, { 0, 54 }, { -5, 61 }, { 0, 58 },
719  { -1, 60 }, { -3, 61 }, { -8, 67 }, { -25, 84 },
720  { -14, 74 }, { -5, 65 }, { 5, 52 }, { 2, 57 },
721  { 0, 61 }, { -9, 69 }, { -11, 70 }, { 18, 55 },
722  { -4, 71 }, { 0, 58 }, { 7, 61 }, { 9, 41 },
723  { 18, 25 }, { 9, 32 }, { 5, 43 }, { 9, 47 },
724  { 0, 44 }, { 0, 51 }, { 2, 46 }, { 19, 38 },
725  { -4, 66 }, { 15, 38 }, { 12, 42 }, { 9, 34 },
726  { 0, 89 },
727 
728  /* 166 - 226 */
729  { 4, 45 }, { 10, 28 }, { 10, 31 }, { 33, -11 },
730  { 52, -43 }, { 18, 15 }, { 28, 0 }, { 35, -22 },
731  { 38, -25 }, { 34, 0 }, { 39, -18 }, { 32, -12 },
732  { 102, -94 }, { 0, 0 }, { 56, -15 }, { 33, -4 },
733  { 29, 10 }, { 37, -5 }, { 51, -29 }, { 39, -9 },
734  { 52, -34 }, { 69, -58 }, { 67, -63 }, { 44, -5 },
735  { 32, 7 }, { 55, -29 }, { 32, 1 }, { 0, 0 },
736  { 27, 36 }, { 33, -25 }, { 34, -30 }, { 36, -28 },
737  { 38, -28 }, { 38, -27 }, { 34, -18 }, { 35, -16 },
738  { 34, -14 }, { 32, -8 }, { 37, -6 }, { 35, 0 },
739  { 30, 10 }, { 28, 18 }, { 26, 25 }, { 29, 41 },
740  { 0, 75 }, { 2, 72 }, { 8, 77 }, { 14, 35 },
741  { 18, 31 }, { 17, 35 }, { 21, 30 }, { 17, 45 },
742  { 20, 42 }, { 18, 45 }, { 27, 26 }, { 16, 54 },
743  { 7, 66 }, { 16, 56 }, { 11, 73 }, { 10, 67 },
744  { -10, 116 },
745 
746  /* 227 - 275 */
747  { -23, 112 }, { -15, 71 }, { -7, 61 }, { 0, 53 },
748  { -5, 66 }, { -11, 77 }, { -9, 80 }, { -9, 84 },
749  { -10, 87 }, { -34, 127 }, { -21, 101 }, { -3, 39 },
750  { -5, 53 }, { -7, 61 }, { -11, 75 }, { -15, 77 },
751  { -17, 91 }, { -25, 107 }, { -25, 111 }, { -28, 122 },
752  { -11, 76 }, { -10, 44 }, { -10, 52 }, { -10, 57 },
753  { -9, 58 }, { -16, 72 }, { -7, 69 }, { -4, 69 },
754  { -5, 74 }, { -9, 86 }, { 2, 66 }, { -9, 34 },
755  { 1, 32 }, { 11, 31 }, { 5, 52 }, { -2, 55 },
756  { -2, 67 }, { 0, 73 }, { -8, 89 }, { 3, 52 },
757  { 7, 4 }, { 10, 8 }, { 17, 8 }, { 16, 19 },
758  { 3, 37 }, { -1, 61 }, { -5, 73 }, { -1, 70 },
759  { -4, 78 },
760 
761  /* 276 a bit special (not used, bypass is used instead) */
762  { 0, 0 },
763 
764  /* 277 - 337 */
765  { -21, 126 }, { -23, 124 }, { -20, 110 }, { -26, 126 },
766  { -25, 124 }, { -17, 105 }, { -27, 121 }, { -27, 117 },
767  { -17, 102 }, { -26, 117 }, { -27, 116 }, { -33, 122 },
768  { -10, 95 }, { -14, 100 }, { -8, 95 }, { -17, 111 },
769  { -28, 114 }, { -6, 89 }, { -2, 80 }, { -4, 82 },
770  { -9, 85 }, { -8, 81 }, { -1, 72 }, { 5, 64 },
771  { 1, 67 }, { 9, 56 }, { 0, 69 }, { 1, 69 },
772  { 7, 69 }, { -7, 69 }, { -6, 67 }, { -16, 77 },
773  { -2, 64 }, { 2, 61 }, { -6, 67 }, { -3, 64 },
774  { 2, 57 }, { -3, 65 }, { -3, 66 }, { 0, 62 },
775  { 9, 51 }, { -1, 66 }, { -2, 71 }, { -2, 75 },
776  { -1, 70 }, { -9, 72 }, { 14, 60 }, { 16, 37 },
777  { 0, 47 }, { 18, 35 }, { 11, 37 }, { 12, 41 },
778  { 10, 41 }, { 2, 48 }, { 12, 41 }, { 13, 41 },
779  { 0, 59 }, { 3, 50 }, { 19, 40 }, { 3, 66 },
780  { 18, 50 },
781 
782  /* 338 - 398 */
783  { 19, -6 }, { 18, -6 }, { 14, 0 }, { 26, -12 },
784  { 31, -16 }, { 33, -25 }, { 33, -22 }, { 37, -28 },
785  { 39, -30 }, { 42, -30 }, { 47, -42 }, { 45, -36 },
786  { 49, -34 }, { 41, -17 }, { 32, 9 }, { 69, -71 },
787  { 63, -63 }, { 66, -64 }, { 77, -74 }, { 54, -39 },
788  { 52, -35 }, { 41, -10 }, { 36, 0 }, { 40, -1 },
789  { 30, 14 }, { 28, 26 }, { 23, 37 }, { 12, 55 },
790  { 11, 65 }, { 37, -33 }, { 39, -36 }, { 40, -37 },
791  { 38, -30 }, { 46, -33 }, { 42, -30 }, { 40, -24 },
792  { 49, -29 }, { 38, -12 }, { 40, -10 }, { 38, -3 },
793  { 46, -5 }, { 31, 20 }, { 29, 30 }, { 25, 44 },
794  { 12, 48 }, { 11, 49 }, { 26, 45 }, { 22, 22 },
795  { 23, 22 }, { 27, 21 }, { 33, 20 }, { 26, 28 },
796  { 30, 24 }, { 27, 34 }, { 18, 42 }, { 25, 39 },
797  { 18, 50 }, { 12, 70 }, { 21, 54 }, { 14, 71 },
798  { 11, 83 },
799 
800  /* 399 - 435 */
801  { 25, 32 }, { 21, 49 }, { 21, 54 },
802  { -5, 85 }, { -6, 81 }, { -10, 77 }, { -7, 81 },
803  { -17, 80 }, { -18, 73 }, { -4, 74 }, { -10, 83 },
804  { -9, 71 }, { -9, 67 }, { -1, 61 }, { -8, 66 },
805  { -14, 66 }, { 0, 59 }, { 2, 59 }, { 17, -10 },
806  { 32, -13 }, { 42, -9 }, { 49, -5 }, { 53, 0 },
807  { 64, 3 }, { 68, 10 }, { 66, 27 }, { 47, 57 },
808  { -5, 71 }, { 0, 24 }, { -1, 36 }, { -2, 42 },
809  { -2, 52 }, { -9, 57 }, { -6, 63 }, { -4, 65 },
810  { -4, 67 }, { -7, 82 },
811 
812  /* 436 - 459 */
813  { -3, 81 }, { -3, 76 }, { -7, 72 }, { -6, 78 },
814  { -12, 72 }, { -14, 68 }, { -3, 70 }, { -6, 76 },
815  { -5, 66 }, { -5, 62 }, { 0, 57 }, { -4, 61 },
816  { -9, 60 }, { 1, 54 }, { 2, 58 }, { 17, -10 },
817  { 32, -13 }, { 42, -9 }, { 49, -5 }, { 53, 0 },
818  { 64, 3 }, { 68, 10 }, { 66, 27 }, { 47, 57 },
819 
820  /* 460 - 1024 */
821  { 0, 80 }, { -5, 89 }, { -7, 94 }, { -4, 92 },
822  { 0, 39 }, { 0, 65 }, { -15, 84 }, { -35, 127 },
823  { -2, 73 }, { -12, 104 }, { -9, 91 }, { -31, 127 },
824  { 0, 80 }, { -5, 89 }, { -7, 94 }, { -4, 92 },
825  { 0, 39 }, { 0, 65 }, { -15, 84 }, { -35, 127 },
826  { -2, 73 }, { -12, 104 }, { -9, 91 }, { -31, 127 },
827  { -13, 103 }, { -13, 91 }, { -9, 89 }, { -14, 92 },
828  { -8, 76 }, { -12, 87 }, { -23, 110 }, { -24, 105 },
829  { -10, 78 }, { -20, 112 }, { -17, 99 }, { -78, 127 },
830  { -70, 127 }, { -50, 127 }, { -46, 127 }, { -4, 66 },
831  { -5, 78 }, { -4, 71 }, { -8, 72 }, { 2, 59 },
832  { -1, 55 }, { -7, 70 }, { -6, 75 }, { -8, 89 },
833  { -34, 119 }, { -3, 75 }, { 32, 20 }, { 30, 22 },
834  { -44, 127 }, { 0, 54 }, { -5, 61 }, { 0, 58 },
835  { -1, 60 }, { -3, 61 }, { -8, 67 }, { -25, 84 },
836  { -14, 74 }, { -5, 65 }, { 5, 52 }, { 2, 57 },
837  { 0, 61 }, { -9, 69 }, { -11, 70 }, { 18, 55 },
838  { -13, 103 }, { -13, 91 }, { -9, 89 }, { -14, 92 },
839  { -8, 76 }, { -12, 87 }, { -23, 110 }, { -24, 105 },
840  { -10, 78 }, { -20, 112 }, { -17, 99 }, { -78, 127 },
841  { -70, 127 }, { -50, 127 }, { -46, 127 }, { -4, 66 },
842  { -5, 78 }, { -4, 71 }, { -8, 72 }, { 2, 59 },
843  { -1, 55 }, { -7, 70 }, { -6, 75 }, { -8, 89 },
844  { -34, 119 }, { -3, 75 }, { 32, 20 }, { 30, 22 },
845  { -44, 127 }, { 0, 54 }, { -5, 61 }, { 0, 58 },
846  { -1, 60 }, { -3, 61 }, { -8, 67 }, { -25, 84 },
847  { -14, 74 }, { -5, 65 }, { 5, 52 }, { 2, 57 },
848  { 0, 61 }, { -9, 69 }, { -11, 70 }, { 18, 55 },
849  { 4, 45 }, { 10, 28 }, { 10, 31 }, { 33, -11 },
850  { 52, -43 }, { 18, 15 }, { 28, 0 }, { 35, -22 },
851  { 38, -25 }, { 34, 0 }, { 39, -18 }, { 32, -12 },
852  { 102, -94 }, { 0, 0 }, { 56, -15 }, { 33, -4 },
853  { 29, 10 }, { 37, -5 }, { 51, -29 }, { 39, -9 },
854  { 52, -34 }, { 69, -58 }, { 67, -63 }, { 44, -5 },
855  { 32, 7 }, { 55, -29 }, { 32, 1 }, { 0, 0 },
856  { 27, 36 }, { 33, -25 }, { 34, -30 }, { 36, -28 },
857  { 38, -28 }, { 38, -27 }, { 34, -18 }, { 35, -16 },
858  { 34, -14 }, { 32, -8 }, { 37, -6 }, { 35, 0 },
859  { 30, 10 }, { 28, 18 }, { 26, 25 }, { 29, 41 },
860  { 4, 45 }, { 10, 28 }, { 10, 31 }, { 33, -11 },
861  { 52, -43 }, { 18, 15 }, { 28, 0 }, { 35, -22 },
862  { 38, -25 }, { 34, 0 }, { 39, -18 }, { 32, -12 },
863  { 102, -94 }, { 0, 0 }, { 56, -15 }, { 33, -4 },
864  { 29, 10 }, { 37, -5 }, { 51, -29 }, { 39, -9 },
865  { 52, -34 }, { 69, -58 }, { 67, -63 }, { 44, -5 },
866  { 32, 7 }, { 55, -29 }, { 32, 1 }, { 0, 0 },
867  { 27, 36 }, { 33, -25 }, { 34, -30 }, { 36, -28 },
868  { 38, -28 }, { 38, -27 }, { 34, -18 }, { 35, -16 },
869  { 34, -14 }, { 32, -8 }, { 37, -6 }, { 35, 0 },
870  { 30, 10 }, { 28, 18 }, { 26, 25 }, { 29, 41 },
871  { -5, 85 }, { -6, 81 }, { -10, 77 }, { -7, 81 },
872  { -17, 80 }, { -18, 73 }, { -4, 74 }, { -10, 83 },
873  { -9, 71 }, { -9, 67 }, { -1, 61 }, { -8, 66 },
874  { -14, 66 }, { 0, 59 }, { 2, 59 }, { -3, 81 },
875  { -3, 76 }, { -7, 72 }, { -6, 78 }, { -12, 72 },
876  { -14, 68 }, { -3, 70 }, { -6, 76 }, { -5, 66 },
877  { -5, 62 }, { 0, 57 }, { -4, 61 }, { -9, 60 },
878  { 1, 54 }, { 2, 58 }, { 17, -10 }, { 32, -13 },
879  { 42, -9 }, { 49, -5 }, { 53, 0 }, { 64, 3 },
880  { 68, 10 }, { 66, 27 }, { 47, 57 }, { 17, -10 },
881  { 32, -13 }, { 42, -9 }, { 49, -5 }, { 53, 0 },
882  { 64, 3 }, { 68, 10 }, { 66, 27 }, { 47, 57 },
883  { -5, 71 }, { 0, 24 }, { -1, 36 }, { -2, 42 },
884  { -2, 52 }, { -9, 57 }, { -6, 63 }, { -4, 65 },
885  { -4, 67 }, { -7, 82 }, { -5, 85 }, { -6, 81 },
886  { -10, 77 }, { -7, 81 }, { -17, 80 }, { -18, 73 },
887  { -4, 74 }, { -10, 83 }, { -9, 71 }, { -9, 67 },
888  { -1, 61 }, { -8, 66 }, { -14, 66 }, { 0, 59 },
889  { 2, 59 }, { -3, 81 }, { -3, 76 }, { -7, 72 },
890  { -6, 78 }, { -12, 72 }, { -14, 68 }, { -3, 70 },
891  { -6, 76 }, { -5, 66 }, { -5, 62 }, { 0, 57 },
892  { -4, 61 }, { -9, 60 }, { 1, 54 }, { 2, 58 },
893  { 17, -10 }, { 32, -13 }, { 42, -9 }, { 49, -5 },
894  { 53, 0 }, { 64, 3 }, { 68, 10 }, { 66, 27 },
895  { 47, 57 }, { 17, -10 }, { 32, -13 }, { 42, -9 },
896  { 49, -5 }, { 53, 0 }, { 64, 3 }, { 68, 10 },
897  { 66, 27 }, { 47, 57 }, { -5, 71 }, { 0, 24 },
898  { -1, 36 }, { -2, 42 }, { -2, 52 }, { -9, 57 },
899  { -6, 63 }, { -4, 65 }, { -4, 67 }, { -7, 82 },
900  { -21, 126 }, { -23, 124 }, { -20, 110 }, { -26, 126 },
901  { -25, 124 }, { -17, 105 }, { -27, 121 }, { -27, 117 },
902  { -17, 102 }, { -26, 117 }, { -27, 116 }, { -33, 122 },
903  { -10, 95 }, { -14, 100 }, { -8, 95 }, { -17, 111 },
904  { -28, 114 }, { -6, 89 }, { -2, 80 }, { -4, 82 },
905  { -9, 85 }, { -8, 81 }, { -1, 72 }, { 5, 64 },
906  { 1, 67 }, { 9, 56 }, { 0, 69 }, { 1, 69 },
907  { 7, 69 }, { -7, 69 }, { -6, 67 }, { -16, 77 },
908  { -2, 64 }, { 2, 61 }, { -6, 67 }, { -3, 64 },
909  { 2, 57 }, { -3, 65 }, { -3, 66 }, { 0, 62 },
910  { 9, 51 }, { -1, 66 }, { -2, 71 }, { -2, 75 },
911  { -21, 126 }, { -23, 124 }, { -20, 110 }, { -26, 126 },
912  { -25, 124 }, { -17, 105 }, { -27, 121 }, { -27, 117 },
913  { -17, 102 }, { -26, 117 }, { -27, 116 }, { -33, 122 },
914  { -10, 95 }, { -14, 100 }, { -8, 95 }, { -17, 111 },
915  { -28, 114 }, { -6, 89 }, { -2, 80 }, { -4, 82 },
916  { -9, 85 }, { -8, 81 }, { -1, 72 }, { 5, 64 },
917  { 1, 67 }, { 9, 56 }, { 0, 69 }, { 1, 69 },
918  { 7, 69 }, { -7, 69 }, { -6, 67 }, { -16, 77 },
919  { -2, 64 }, { 2, 61 }, { -6, 67 }, { -3, 64 },
920  { 2, 57 }, { -3, 65 }, { -3, 66 }, { 0, 62 },
921  { 9, 51 }, { -1, 66 }, { -2, 71 }, { -2, 75 },
922  { 19, -6 }, { 18, -6 }, { 14, 0 }, { 26, -12 },
923  { 31, -16 }, { 33, -25 }, { 33, -22 }, { 37, -28 },
924  { 39, -30 }, { 42, -30 }, { 47, -42 }, { 45, -36 },
925  { 49, -34 }, { 41, -17 }, { 32, 9 }, { 69, -71 },
926  { 63, -63 }, { 66, -64 }, { 77, -74 }, { 54, -39 },
927  { 52, -35 }, { 41, -10 }, { 36, 0 }, { 40, -1 },
928  { 30, 14 }, { 28, 26 }, { 23, 37 }, { 12, 55 },
929  { 11, 65 }, { 37, -33 }, { 39, -36 }, { 40, -37 },
930  { 38, -30 }, { 46, -33 }, { 42, -30 }, { 40, -24 },
931  { 49, -29 }, { 38, -12 }, { 40, -10 }, { 38, -3 },
932  { 46, -5 }, { 31, 20 }, { 29, 30 }, { 25, 44 },
933  { 19, -6 }, { 18, -6 }, { 14, 0 }, { 26, -12 },
934  { 31, -16 }, { 33, -25 }, { 33, -22 }, { 37, -28 },
935  { 39, -30 }, { 42, -30 }, { 47, -42 }, { 45, -36 },
936  { 49, -34 }, { 41, -17 }, { 32, 9 }, { 69, -71 },
937  { 63, -63 }, { 66, -64 }, { 77, -74 }, { 54, -39 },
938  { 52, -35 }, { 41, -10 }, { 36, 0 }, { 40, -1 },
939  { 30, 14 }, { 28, 26 }, { 23, 37 }, { 12, 55 },
940  { 11, 65 }, { 37, -33 }, { 39, -36 }, { 40, -37 },
941  { 38, -30 }, { 46, -33 }, { 42, -30 }, { 40, -24 },
942  { 49, -29 }, { 38, -12 }, { 40, -10 }, { 38, -3 },
943  { 46, -5 }, { 31, 20 }, { 29, 30 }, { 25, 44 },
944  { -23, 112 }, { -15, 71 }, { -7, 61 }, { 0, 53 },
945  { -5, 66 }, { -11, 77 }, { -9, 80 }, { -9, 84 },
946  { -10, 87 }, { -34, 127 }, { -21, 101 }, { -3, 39 },
947  { -5, 53 }, { -7, 61 }, { -11, 75 }, { -15, 77 },
948  { -17, 91 }, { -25, 107 }, { -25, 111 }, { -28, 122 },
949  { -11, 76 }, { -10, 44 }, { -10, 52 }, { -10, 57 },
950  { -9, 58 }, { -16, 72 }, { -7, 69 }, { -4, 69 },
951  { -5, 74 }, { -9, 86 }, { -23, 112 }, { -15, 71 },
952  { -7, 61 }, { 0, 53 }, { -5, 66 }, { -11, 77 },
953  { -9, 80 }, { -9, 84 }, { -10, 87 }, { -34, 127 },
954  { -21, 101 }, { -3, 39 }, { -5, 53 }, { -7, 61 },
955  { -11, 75 }, { -15, 77 }, { -17, 91 }, { -25, 107 },
956  { -25, 111 }, { -28, 122 }, { -11, 76 }, { -10, 44 },
957  { -10, 52 }, { -10, 57 }, { -9, 58 }, { -16, 72 },
958  { -7, 69 }, { -4, 69 }, { -5, 74 }, { -9, 86 },
959  { -2, 73 }, { -12, 104 }, { -9, 91 }, { -31, 127 },
960  { -2, 73 }, { -12, 104 }, { -9, 91 }, { -31, 127 },
961  { -2, 73 }, { -12, 104 }, { -9, 91 }, { -31, 127 }
962  },
963 
964  /* i_cabac_init_idc == 2 */
965  {
966  /* 0 - 10 */
967  { 20, -15 }, { 2, 54 }, { 3, 74 }, { 20, -15 },
968  { 2, 54 }, { 3, 74 }, { -28, 127 }, { -23, 104 },
969  { -6, 53 }, { -1, 54 }, { 7, 51 },
970 
971  /* 11 - 23 */
972  { 29, 16 }, { 25, 0 }, { 14, 0 }, { -10, 51 },
973  { -3, 62 }, { -27, 99 }, { 26, 16 }, { -4, 85 },
974  { -24, 102 }, { 5, 57 }, { 6, 57 }, { -17, 73 },
975  { 14, 57 },
976 
977  /* 24 - 39 */
978  { 20, 40 }, { 20, 10 }, { 29, 0 }, { 54, 0 },
979  { 37, 42 }, { 12, 97 }, { -32, 127 }, { -22, 117 },
980  { -2, 74 }, { -4, 85 }, { -24, 102 }, { 5, 57 },
981  { -6, 93 }, { -14, 88 }, { -6, 44 }, { 4, 55 },
982 
983  /* 40 - 53 */
984  { -11, 89 },{ -15, 103 },{ -21, 116 },{ 19, 57 },
985  { 20, 58 },{ 4, 84 },{ 6, 96 },{ 1, 63 },
986  { -5, 85 },{ -13, 106 },{ 5, 63 },{ 6, 75 },
987  { -3, 90 },{ -1, 101 },
988 
989  /* 54 - 59 */
990  { 3, 55 },{ -4, 79 },{ -2, 75 },{ -12, 97 },
991  { -7, 50 },{ 1, 60 },
992 
993  /* 60 - 69 */
994  { 0, 41 }, { 0, 63 }, { 0, 63 }, { 0, 63 },
995  { -9, 83 }, { 4, 86 }, { 0, 97 }, { -7, 72 },
996  { 13, 41 }, { 3, 62 },
997 
998  /* 70 - 104 */
999  { 7, 34 }, { -9, 88 }, { -20, 127 }, { -36, 127 },
1000  { -17, 91 }, { -14, 95 }, { -25, 84 }, { -25, 86 },
1001  { -12, 89 }, { -17, 91 }, { -31, 127 }, { -14, 76 },
1002  { -18, 103 }, { -13, 90 }, { -37, 127 }, { 11, 80 },
1003  { 5, 76 }, { 2, 84 }, { 5, 78 }, { -6, 55 },
1004  { 4, 61 }, { -14, 83 }, { -37, 127 }, { -5, 79 },
1005  { -11, 104 }, { -11, 91 }, { -30, 127 }, { 0, 65 },
1006  { -2, 79 }, { 0, 72 }, { -4, 92 }, { -6, 56 },
1007  { 3, 68 }, { -8, 71 }, { -13, 98 },
1008 
1009  /* 105 -> 165 */
1010  { -4, 86 }, { -12, 88 }, { -5, 82 }, { -3, 72 },
1011  { -4, 67 }, { -8, 72 }, { -16, 89 }, { -9, 69 },
1012  { -1, 59 }, { 5, 66 }, { 4, 57 }, { -4, 71 },
1013  { -2, 71 }, { 2, 58 }, { -1, 74 }, { -4, 44 },
1014  { -1, 69 }, { 0, 62 }, { -7, 51 }, { -4, 47 },
1015  { -6, 42 }, { -3, 41 }, { -6, 53 }, { 8, 76 },
1016  { -9, 78 }, { -11, 83 }, { 9, 52 }, { 0, 67 },
1017  { -5, 90 }, { 1, 67 }, { -15, 72 }, { -5, 75 },
1018  { -8, 80 }, { -21, 83 }, { -21, 64 }, { -13, 31 },
1019  { -25, 64 }, { -29, 94 }, { 9, 75 }, { 17, 63 },
1020  { -8, 74 }, { -5, 35 }, { -2, 27 }, { 13, 91 },
1021  { 3, 65 }, { -7, 69 }, { 8, 77 }, { -10, 66 },
1022  { 3, 62 }, { -3, 68 }, { -20, 81 }, { 0, 30 },
1023  { 1, 7 }, { -3, 23 }, { -21, 74 }, { 16, 66 },
1024  { -23, 124 }, { 17, 37 }, { 44, -18 }, { 50, -34 },
1025  { -22, 127 },
1026 
1027  /* 166 - 226 */
1028  { 4, 39 }, { 0, 42 }, { 7, 34 }, { 11, 29 },
1029  { 8, 31 }, { 6, 37 }, { 7, 42 }, { 3, 40 },
1030  { 8, 33 }, { 13, 43 }, { 13, 36 }, { 4, 47 },
1031  { 3, 55 }, { 2, 58 }, { 6, 60 }, { 8, 44 },
1032  { 11, 44 }, { 14, 42 }, { 7, 48 }, { 4, 56 },
1033  { 4, 52 }, { 13, 37 }, { 9, 49 }, { 19, 58 },
1034  { 10, 48 }, { 12, 45 }, { 0, 69 }, { 20, 33 },
1035  { 8, 63 }, { 35, -18 }, { 33, -25 }, { 28, -3 },
1036  { 24, 10 }, { 27, 0 }, { 34, -14 }, { 52, -44 },
1037  { 39, -24 }, { 19, 17 }, { 31, 25 }, { 36, 29 },
1038  { 24, 33 }, { 34, 15 }, { 30, 20 }, { 22, 73 },
1039  { 20, 34 }, { 19, 31 }, { 27, 44 }, { 19, 16 },
1040  { 15, 36 }, { 15, 36 }, { 21, 28 }, { 25, 21 },
1041  { 30, 20 }, { 31, 12 }, { 27, 16 }, { 24, 42 },
1042  { 0, 93 }, { 14, 56 }, { 15, 57 }, { 26, 38 },
1043  { -24, 127 },
1044 
1045  /* 227 - 275 */
1046  { -24, 115 }, { -22, 82 }, { -9, 62 }, { 0, 53 },
1047  { 0, 59 }, { -14, 85 }, { -13, 89 }, { -13, 94 },
1048  { -11, 92 }, { -29, 127 }, { -21, 100 }, { -14, 57 },
1049  { -12, 67 }, { -11, 71 }, { -10, 77 }, { -21, 85 },
1050  { -16, 88 }, { -23, 104 }, { -15, 98 }, { -37, 127 },
1051  { -10, 82 }, { -8, 48 }, { -8, 61 }, { -8, 66 },
1052  { -7, 70 }, { -14, 75 }, { -10, 79 }, { -9, 83 },
1053  { -12, 92 }, { -18, 108 }, { -4, 79 }, { -22, 69 },
1054  { -16, 75 }, { -2, 58 }, { 1, 58 }, { -13, 78 },
1055  { -9, 83 }, { -4, 81 }, { -13, 99 }, { -13, 81 },
1056  { -6, 38 }, { -13, 62 }, { -6, 58 }, { -2, 59 },
1057  { -16, 73 }, { -10, 76 }, { -13, 86 }, { -9, 83 },
1058  { -10, 87 },
1059 
1060  /* 276 a bit special (not used, bypass is used instead) */
1061  { 0, 0 },
1062 
1063  /* 277 - 337 */
1064  { -22, 127 }, { -25, 127 }, { -25, 120 }, { -27, 127 },
1065  { -19, 114 }, { -23, 117 }, { -25, 118 }, { -26, 117 },
1066  { -24, 113 }, { -28, 118 }, { -31, 120 }, { -37, 124 },
1067  { -10, 94 }, { -15, 102 }, { -10, 99 }, { -13, 106 },
1068  { -50, 127 }, { -5, 92 }, { 17, 57 }, { -5, 86 },
1069  { -13, 94 }, { -12, 91 }, { -2, 77 }, { 0, 71 },
1070  { -1, 73 }, { 4, 64 }, { -7, 81 }, { 5, 64 },
1071  { 15, 57 }, { 1, 67 }, { 0, 68 }, { -10, 67 },
1072  { 1, 68 }, { 0, 77 }, { 2, 64 }, { 0, 68 },
1073  { -5, 78 }, { 7, 55 }, { 5, 59 }, { 2, 65 },
1074  { 14, 54 }, { 15, 44 }, { 5, 60 }, { 2, 70 },
1075  { -2, 76 }, { -18, 86 }, { 12, 70 }, { 5, 64 },
1076  { -12, 70 }, { 11, 55 }, { 5, 56 }, { 0, 69 },
1077  { 2, 65 }, { -6, 74 }, { 5, 54 }, { 7, 54 },
1078  { -6, 76 }, { -11, 82 }, { -2, 77 }, { -2, 77 },
1079  { 25, 42 },
1080 
1081  /* 338 - 398 */
1082  { 17, -13 }, { 16, -9 }, { 17, -12 }, { 27, -21 },
1083  { 37, -30 }, { 41, -40 }, { 42, -41 }, { 48, -47 },
1084  { 39, -32 }, { 46, -40 }, { 52, -51 }, { 46, -41 },
1085  { 52, -39 }, { 43, -19 }, { 32, 11 }, { 61, -55 },
1086  { 56, -46 }, { 62, -50 }, { 81, -67 }, { 45, -20 },
1087  { 35, -2 }, { 28, 15 }, { 34, 1 }, { 39, 1 },
1088  { 30, 17 }, { 20, 38 }, { 18, 45 }, { 15, 54 },
1089  { 0, 79 }, { 36, -16 }, { 37, -14 }, { 37, -17 },
1090  { 32, 1 }, { 34, 15 }, { 29, 15 }, { 24, 25 },
1091  { 34, 22 }, { 31, 16 }, { 35, 18 }, { 31, 28 },
1092  { 33, 41 }, { 36, 28 }, { 27, 47 }, { 21, 62 },
1093  { 18, 31 }, { 19, 26 }, { 36, 24 }, { 24, 23 },
1094  { 27, 16 }, { 24, 30 }, { 31, 29 }, { 22, 41 },
1095  { 22, 42 }, { 16, 60 }, { 15, 52 }, { 14, 60 },
1096  { 3, 78 }, { -16, 123 }, { 21, 53 }, { 22, 56 },
1097  { 25, 61 },
1098 
1099  /* 399 - 435 */
1100  { 21, 33 }, { 19, 50 }, { 17, 61 },
1101  { -3, 78 }, { -8, 74 }, { -9, 72 }, { -10, 72 },
1102  { -18, 75 }, { -12, 71 }, { -11, 63 }, { -5, 70 },
1103  { -17, 75 }, { -14, 72 }, { -16, 67 }, { -8, 53 },
1104  { -14, 59 }, { -9, 52 }, { -11, 68 }, { 9, -2 },
1105  { 30, -10 }, { 31, -4 }, { 33, -1 }, { 33, 7 },
1106  { 31, 12 }, { 37, 23 }, { 31, 38 }, { 20, 64 },
1107  { -9, 71 }, { -7, 37 }, { -8, 44 }, { -11, 49 },
1108  { -10, 56 }, { -12, 59 }, { -8, 63 }, { -9, 67 },
1109  { -6, 68 }, { -10, 79 },
1110 
1111  /* 436 - 459 */
1112  { -3, 78 }, { -8, 74 }, { -9, 72 }, { -10, 72 },
1113  { -18, 75 }, { -12, 71 }, { -11, 63 }, { -5, 70 },
1114  { -17, 75 }, { -14, 72 }, { -16, 67 }, { -8, 53 },
1115  { -14, 59 }, { -9, 52 }, { -11, 68 }, { 9, -2 },
1116  { 30, -10 }, { 31, -4 }, { 33, -1 }, { 33, 7 },
1117  { 31, 12 }, { 37, 23 }, { 31, 38 }, { 20, 64 },
1118 
1119  /* 460 - 1024 */
1120  { 11, 80 }, { 5, 76 }, { 2, 84 }, { 5, 78 },
1121  { -6, 55 }, { 4, 61 }, { -14, 83 }, { -37, 127 },
1122  { -5, 79 }, { -11, 104 }, { -11, 91 }, { -30, 127 },
1123  { 11, 80 }, { 5, 76 }, { 2, 84 }, { 5, 78 },
1124  { -6, 55 }, { 4, 61 }, { -14, 83 }, { -37, 127 },
1125  { -5, 79 }, { -11, 104 }, { -11, 91 }, { -30, 127 },
1126  { -4, 86 }, { -12, 88 }, { -5, 82 }, { -3, 72 },
1127  { -4, 67 }, { -8, 72 }, { -16, 89 }, { -9, 69 },
1128  { -1, 59 }, { 5, 66 }, { 4, 57 }, { -4, 71 },
1129  { -2, 71 }, { 2, 58 }, { -1, 74 }, { -4, 44 },
1130  { -1, 69 }, { 0, 62 }, { -7, 51 }, { -4, 47 },
1131  { -6, 42 }, { -3, 41 }, { -6, 53 }, { 8, 76 },
1132  { -9, 78 }, { -11, 83 }, { 9, 52 }, { 0, 67 },
1133  { -5, 90 }, { 1, 67 }, { -15, 72 }, { -5, 75 },
1134  { -8, 80 }, { -21, 83 }, { -21, 64 }, { -13, 31 },
1135  { -25, 64 }, { -29, 94 }, { 9, 75 }, { 17, 63 },
1136  { -8, 74 }, { -5, 35 }, { -2, 27 }, { 13, 91 },
1137  { -4, 86 }, { -12, 88 }, { -5, 82 }, { -3, 72 },
1138  { -4, 67 }, { -8, 72 }, { -16, 89 }, { -9, 69 },
1139  { -1, 59 }, { 5, 66 }, { 4, 57 }, { -4, 71 },
1140  { -2, 71 }, { 2, 58 }, { -1, 74 }, { -4, 44 },
1141  { -1, 69 }, { 0, 62 }, { -7, 51 }, { -4, 47 },
1142  { -6, 42 }, { -3, 41 }, { -6, 53 }, { 8, 76 },
1143  { -9, 78 }, { -11, 83 }, { 9, 52 }, { 0, 67 },
1144  { -5, 90 }, { 1, 67 }, { -15, 72 }, { -5, 75 },
1145  { -8, 80 }, { -21, 83 }, { -21, 64 }, { -13, 31 },
1146  { -25, 64 }, { -29, 94 }, { 9, 75 }, { 17, 63 },
1147  { -8, 74 }, { -5, 35 }, { -2, 27 }, { 13, 91 },
1148  { 4, 39 }, { 0, 42 }, { 7, 34 }, { 11, 29 },
1149  { 8, 31 }, { 6, 37 }, { 7, 42 }, { 3, 40 },
1150  { 8, 33 }, { 13, 43 }, { 13, 36 }, { 4, 47 },
1151  { 3, 55 }, { 2, 58 }, { 6, 60 }, { 8, 44 },
1152  { 11, 44 }, { 14, 42 }, { 7, 48 }, { 4, 56 },
1153  { 4, 52 }, { 13, 37 }, { 9, 49 }, { 19, 58 },
1154  { 10, 48 }, { 12, 45 }, { 0, 69 }, { 20, 33 },
1155  { 8, 63 }, { 35, -18 }, { 33, -25 }, { 28, -3 },
1156  { 24, 10 }, { 27, 0 }, { 34, -14 }, { 52, -44 },
1157  { 39, -24 }, { 19, 17 }, { 31, 25 }, { 36, 29 },
1158  { 24, 33 }, { 34, 15 }, { 30, 20 }, { 22, 73 },
1159  { 4, 39 }, { 0, 42 }, { 7, 34 }, { 11, 29 },
1160  { 8, 31 }, { 6, 37 }, { 7, 42 }, { 3, 40 },
1161  { 8, 33 }, { 13, 43 }, { 13, 36 }, { 4, 47 },
1162  { 3, 55 }, { 2, 58 }, { 6, 60 }, { 8, 44 },
1163  { 11, 44 }, { 14, 42 }, { 7, 48 }, { 4, 56 },
1164  { 4, 52 }, { 13, 37 }, { 9, 49 }, { 19, 58 },
1165  { 10, 48 }, { 12, 45 }, { 0, 69 }, { 20, 33 },
1166  { 8, 63 }, { 35, -18 }, { 33, -25 }, { 28, -3 },
1167  { 24, 10 }, { 27, 0 }, { 34, -14 }, { 52, -44 },
1168  { 39, -24 }, { 19, 17 }, { 31, 25 }, { 36, 29 },
1169  { 24, 33 }, { 34, 15 }, { 30, 20 }, { 22, 73 },
1170  { -3, 78 }, { -8, 74 }, { -9, 72 }, { -10, 72 },
1171  { -18, 75 }, { -12, 71 }, { -11, 63 }, { -5, 70 },
1172  { -17, 75 }, { -14, 72 }, { -16, 67 }, { -8, 53 },
1173  { -14, 59 }, { -9, 52 }, { -11, 68 }, { -3, 78 },
1174  { -8, 74 }, { -9, 72 }, { -10, 72 }, { -18, 75 },
1175  { -12, 71 }, { -11, 63 }, { -5, 70 }, { -17, 75 },
1176  { -14, 72 }, { -16, 67 }, { -8, 53 }, { -14, 59 },
1177  { -9, 52 }, { -11, 68 }, { 9, -2 }, { 30, -10 },
1178  { 31, -4 }, { 33, -1 }, { 33, 7 }, { 31, 12 },
1179  { 37, 23 }, { 31, 38 }, { 20, 64 }, { 9, -2 },
1180  { 30, -10 }, { 31, -4 }, { 33, -1 }, { 33, 7 },
1181  { 31, 12 }, { 37, 23 }, { 31, 38 }, { 20, 64 },
1182  { -9, 71 }, { -7, 37 }, { -8, 44 }, { -11, 49 },
1183  { -10, 56 }, { -12, 59 }, { -8, 63 }, { -9, 67 },
1184  { -6, 68 }, { -10, 79 }, { -3, 78 }, { -8, 74 },
1185  { -9, 72 }, { -10, 72 }, { -18, 75 }, { -12, 71 },
1186  { -11, 63 }, { -5, 70 }, { -17, 75 }, { -14, 72 },
1187  { -16, 67 }, { -8, 53 }, { -14, 59 }, { -9, 52 },
1188  { -11, 68 }, { -3, 78 }, { -8, 74 }, { -9, 72 },
1189  { -10, 72 }, { -18, 75 }, { -12, 71 }, { -11, 63 },
1190  { -5, 70 }, { -17, 75 }, { -14, 72 }, { -16, 67 },
1191  { -8, 53 }, { -14, 59 }, { -9, 52 }, { -11, 68 },
1192  { 9, -2 }, { 30, -10 }, { 31, -4 }, { 33, -1 },
1193  { 33, 7 }, { 31, 12 }, { 37, 23 }, { 31, 38 },
1194  { 20, 64 }, { 9, -2 }, { 30, -10 }, { 31, -4 },
1195  { 33, -1 }, { 33, 7 }, { 31, 12 }, { 37, 23 },
1196  { 31, 38 }, { 20, 64 }, { -9, 71 }, { -7, 37 },
1197  { -8, 44 }, { -11, 49 }, { -10, 56 }, { -12, 59 },
1198  { -8, 63 }, { -9, 67 }, { -6, 68 }, { -10, 79 },
1199  { -22, 127 }, { -25, 127 }, { -25, 120 }, { -27, 127 },
1200  { -19, 114 }, { -23, 117 }, { -25, 118 }, { -26, 117 },
1201  { -24, 113 }, { -28, 118 }, { -31, 120 }, { -37, 124 },
1202  { -10, 94 }, { -15, 102 }, { -10, 99 }, { -13, 106 },
1203  { -50, 127 }, { -5, 92 }, { 17, 57 }, { -5, 86 },
1204  { -13, 94 }, { -12, 91 }, { -2, 77 }, { 0, 71 },
1205  { -1, 73 }, { 4, 64 }, { -7, 81 }, { 5, 64 },
1206  { 15, 57 }, { 1, 67 }, { 0, 68 }, { -10, 67 },
1207  { 1, 68 }, { 0, 77 }, { 2, 64 }, { 0, 68 },
1208  { -5, 78 }, { 7, 55 }, { 5, 59 }, { 2, 65 },
1209  { 14, 54 }, { 15, 44 }, { 5, 60 }, { 2, 70 },
1210  { -22, 127 }, { -25, 127 }, { -25, 120 }, { -27, 127 },
1211  { -19, 114 }, { -23, 117 }, { -25, 118 }, { -26, 117 },
1212  { -24, 113 }, { -28, 118 }, { -31, 120 }, { -37, 124 },
1213  { -10, 94 }, { -15, 102 }, { -10, 99 }, { -13, 106 },
1214  { -50, 127 }, { -5, 92 }, { 17, 57 }, { -5, 86 },
1215  { -13, 94 }, { -12, 91 }, { -2, 77 }, { 0, 71 },
1216  { -1, 73 }, { 4, 64 }, { -7, 81 }, { 5, 64 },
1217  { 15, 57 }, { 1, 67 }, { 0, 68 }, { -10, 67 },
1218  { 1, 68 }, { 0, 77 }, { 2, 64 }, { 0, 68 },
1219  { -5, 78 }, { 7, 55 }, { 5, 59 }, { 2, 65 },
1220  { 14, 54 }, { 15, 44 }, { 5, 60 }, { 2, 70 },
1221  { 17, -13 }, { 16, -9 }, { 17, -12 }, { 27, -21 },
1222  { 37, -30 }, { 41, -40 }, { 42, -41 }, { 48, -47 },
1223  { 39, -32 }, { 46, -40 }, { 52, -51 }, { 46, -41 },
1224  { 52, -39 }, { 43, -19 }, { 32, 11 }, { 61, -55 },
1225  { 56, -46 }, { 62, -50 }, { 81, -67 }, { 45, -20 },
1226  { 35, -2 }, { 28, 15 }, { 34, 1 }, { 39, 1 },
1227  { 30, 17 }, { 20, 38 }, { 18, 45 }, { 15, 54 },
1228  { 0, 79 }, { 36, -16 }, { 37, -14 }, { 37, -17 },
1229  { 32, 1 }, { 34, 15 }, { 29, 15 }, { 24, 25 },
1230  { 34, 22 }, { 31, 16 }, { 35, 18 }, { 31, 28 },
1231  { 33, 41 }, { 36, 28 }, { 27, 47 }, { 21, 62 },
1232  { 17, -13 }, { 16, -9 }, { 17, -12 }, { 27, -21 },
1233  { 37, -30 }, { 41, -40 }, { 42, -41 }, { 48, -47 },
1234  { 39, -32 }, { 46, -40 }, { 52, -51 }, { 46, -41 },
1235  { 52, -39 }, { 43, -19 }, { 32, 11 }, { 61, -55 },
1236  { 56, -46 }, { 62, -50 }, { 81, -67 }, { 45, -20 },
1237  { 35, -2 }, { 28, 15 }, { 34, 1 }, { 39, 1 },
1238  { 30, 17 }, { 20, 38 }, { 18, 45 }, { 15, 54 },
1239  { 0, 79 }, { 36, -16 }, { 37, -14 }, { 37, -17 },
1240  { 32, 1 }, { 34, 15 }, { 29, 15 }, { 24, 25 },
1241  { 34, 22 }, { 31, 16 }, { 35, 18 }, { 31, 28 },
1242  { 33, 41 }, { 36, 28 }, { 27, 47 }, { 21, 62 },
1243  { -24, 115 }, { -22, 82 }, { -9, 62 }, { 0, 53 },
1244  { 0, 59 }, { -14, 85 }, { -13, 89 }, { -13, 94 },
1245  { -11, 92 }, { -29, 127 }, { -21, 100 }, { -14, 57 },
1246  { -12, 67 }, { -11, 71 }, { -10, 77 }, { -21, 85 },
1247  { -16, 88 }, { -23, 104 }, { -15, 98 }, { -37, 127 },
1248  { -10, 82 }, { -8, 48 }, { -8, 61 }, { -8, 66 },
1249  { -7, 70 }, { -14, 75 }, { -10, 79 }, { -9, 83 },
1250  { -12, 92 }, { -18, 108 }, { -24, 115 }, { -22, 82 },
1251  { -9, 62 }, { 0, 53 }, { 0, 59 }, { -14, 85 },
1252  { -13, 89 }, { -13, 94 }, { -11, 92 }, { -29, 127 },
1253  { -21, 100 }, { -14, 57 }, { -12, 67 }, { -11, 71 },
1254  { -10, 77 }, { -21, 85 }, { -16, 88 }, { -23, 104 },
1255  { -15, 98 }, { -37, 127 }, { -10, 82 }, { -8, 48 },
1256  { -8, 61 }, { -8, 66 }, { -7, 70 }, { -14, 75 },
1257  { -10, 79 }, { -9, 83 }, { -12, 92 }, { -18, 108 },
1258  { -5, 79 }, { -11, 104 }, { -11, 91 }, { -30, 127 },
1259  { -5, 79 }, { -11, 104 }, { -11, 91 }, { -30, 127 },
1260  { -5, 79 }, { -11, 104 }, { -11, 91 }, { -30, 127 }
1261  }
1262 };
1263 
1264 void ff_h264_init_cabac_states(const H264Context *h, H264SliceContext *sl)
1265 {
1266  int i;
1267  const int8_t (*tab)[2];
1268  const int slice_qp = av_clip(sl->qscale - 6*(h->sps.bit_depth_luma-8), 0, 51);
1269 
1270  if (sl->slice_type_nos == AV_PICTURE_TYPE_I) tab = cabac_context_init_I;
1271  else tab = cabac_context_init_PB[sl->cabac_init_idc];
1272 
1273  /* calculate pre-state */
1274  for( i= 0; i < 1024; i++ ) {
1275  int pre = 2*(((tab[i][0] * slice_qp) >>4 ) + tab[i][1]) - 127;
1276 
1277  pre^= pre>>31;
1278  if(pre > 124)
1279  pre= 124 + (pre&1);
1280 
1281  sl->cabac_state[i] = pre;
1282  }
1283 }
1284 
1285 static int decode_cabac_field_decoding_flag(const H264Context *h, H264SliceContext *sl)
1286 {
1287  const int mbb_xy = sl->mb_xy - 2*h->mb_stride;
1288 
1289  unsigned long ctx = 0;
1290 
1291  ctx += sl->mb_field_decoding_flag & !!sl->mb_x; //for FMO:(s->current_picture.mb_type[mba_xy] >> 7) & (h->slice_table[mba_xy] == h->slice_num);
1292  ctx += (h->cur_pic.mb_type[mbb_xy] >> 7) & (h->slice_table[mbb_xy] == sl->slice_num);
1293 
1294  return get_cabac_noinline( &sl->cabac, &(sl->cabac_state+70)[ctx] );
1295 }
1296 
1297 static int decode_cabac_intra_mb_type(H264SliceContext *sl,
1298  int ctx_base, int intra_slice)
1299 {
1300  uint8_t *state= &sl->cabac_state[ctx_base];
1301  int mb_type;
1302 
1303  if(intra_slice){
1304  int ctx=0;
1305  if (sl->left_type[LTOP] & (MB_TYPE_INTRA16x16|MB_TYPE_INTRA_PCM))
1306  ctx++;
1307  if (sl->top_type & (MB_TYPE_INTRA16x16|MB_TYPE_INTRA_PCM))
1308  ctx++;
1309  if( get_cabac_noinline( &sl->cabac, &state[ctx] ) == 0 )
1310  return 0; /* I4x4 */
1311  state += 2;
1312  }else{
1313  if( get_cabac_noinline( &sl->cabac, state ) == 0 )
1314  return 0; /* I4x4 */
1315  }
1316 
1317  if( get_cabac_terminate( &sl->cabac ) )
1318  return 25; /* PCM */
1319 
1320  mb_type = 1; /* I16x16 */
1321  mb_type += 12 * get_cabac_noinline( &sl->cabac, &state[1] ); /* cbp_luma != 0 */
1322  if( get_cabac_noinline( &sl->cabac, &state[2] ) ) /* cbp_chroma */
1323  mb_type += 4 + 4 * get_cabac_noinline( &sl->cabac, &state[2+intra_slice] );
1324  mb_type += 2 * get_cabac_noinline( &sl->cabac, &state[3+intra_slice] );
1325  mb_type += 1 * get_cabac_noinline( &sl->cabac, &state[3+2*intra_slice] );
1326  return mb_type;
1327 }
1328 
1329 static int decode_cabac_mb_skip(const H264Context *h, H264SliceContext *sl,
1330  int mb_x, int mb_y)
1331 {
1332  int mba_xy, mbb_xy;
1333  int ctx = 0;
1334 
1335  if (FRAME_MBAFF(h)) { //FIXME merge with the stuff in fill_caches?
1336  int mb_xy = mb_x + (mb_y&~1)*h->mb_stride;
1337  mba_xy = mb_xy - 1;
1338  if( (mb_y&1)
1339  && h->slice_table[mba_xy] == sl->slice_num
1340  && MB_FIELD(sl) == !!IS_INTERLACED( h->cur_pic.mb_type[mba_xy] ) )
1341  mba_xy += h->mb_stride;
1342  if (MB_FIELD(sl)) {
1343  mbb_xy = mb_xy - h->mb_stride;
1344  if( !(mb_y&1)
1345  && h->slice_table[mbb_xy] == sl->slice_num
1346  && IS_INTERLACED( h->cur_pic.mb_type[mbb_xy] ) )
1347  mbb_xy -= h->mb_stride;
1348  }else
1349  mbb_xy = mb_x + (mb_y-1)*h->mb_stride;
1350  }else{
1351  int mb_xy = sl->mb_xy;
1352  mba_xy = mb_xy - 1;
1353  mbb_xy = mb_xy - (h->mb_stride << FIELD_PICTURE(h));
1354  }
1355 
1356  if( h->slice_table[mba_xy] == sl->slice_num && !IS_SKIP(h->cur_pic.mb_type[mba_xy] ))
1357  ctx++;
1358  if( h->slice_table[mbb_xy] == sl->slice_num && !IS_SKIP(h->cur_pic.mb_type[mbb_xy] ))
1359  ctx++;
1360 
1361  if (sl->slice_type_nos == AV_PICTURE_TYPE_B)
1362  ctx += 13;
1363  return get_cabac_noinline( &sl->cabac, &sl->cabac_state[11+ctx] );
1364 }
1365 
1366 static int decode_cabac_mb_intra4x4_pred_mode(H264SliceContext *sl, int pred_mode)
1367 {
1368  int mode = 0;
1369 
1370  if( get_cabac( &sl->cabac, &sl->cabac_state[68] ) )
1371  return pred_mode;
1372 
1373  mode += 1 * get_cabac( &sl->cabac, &sl->cabac_state[69] );
1374  mode += 2 * get_cabac( &sl->cabac, &sl->cabac_state[69] );
1375  mode += 4 * get_cabac( &sl->cabac, &sl->cabac_state[69] );
1376 
1377  return mode + ( mode >= pred_mode );
1378 }
1379 
1380 static int decode_cabac_mb_chroma_pre_mode(const H264Context *h, H264SliceContext *sl)
1381 {
1382  const int mba_xy = sl->left_mb_xy[0];
1383  const int mbb_xy = sl->top_mb_xy;
1384 
1385  int ctx = 0;
1386 
1387  /* No need to test for IS_INTRA4x4 and IS_INTRA16x16, as we set chroma_pred_mode_table to 0 */
1388  if (sl->left_type[LTOP] && h->chroma_pred_mode_table[mba_xy] != 0)
1389  ctx++;
1390 
1391  if (sl->top_type && h->chroma_pred_mode_table[mbb_xy] != 0)
1392  ctx++;
1393 
1394  if( get_cabac_noinline( &sl->cabac, &sl->cabac_state[64+ctx] ) == 0 )
1395  return 0;
1396 
1397  if( get_cabac_noinline( &sl->cabac, &sl->cabac_state[64+3] ) == 0 )
1398  return 1;
1399  if( get_cabac_noinline( &sl->cabac, &sl->cabac_state[64+3] ) == 0 )
1400  return 2;
1401  else
1402  return 3;
1403 }
1404 
1405 static int decode_cabac_mb_cbp_luma(H264SliceContext *sl)
1406 {
1407  int cbp_b, cbp_a, ctx, cbp = 0;
1408 
1409  cbp_a = sl->left_cbp;
1410  cbp_b = sl->top_cbp;
1411 
1412  ctx = !(cbp_a & 0x02) + 2 * !(cbp_b & 0x04);
1413  cbp += get_cabac_noinline(&sl->cabac, &sl->cabac_state[73 + ctx]);
1414  ctx = !(cbp & 0x01) + 2 * !(cbp_b & 0x08);
1415  cbp += get_cabac_noinline(&sl->cabac, &sl->cabac_state[73 + ctx]) << 1;
1416  ctx = !(cbp_a & 0x08) + 2 * !(cbp & 0x01);
1417  cbp += get_cabac_noinline(&sl->cabac, &sl->cabac_state[73 + ctx]) << 2;
1418  ctx = !(cbp & 0x04) + 2 * !(cbp & 0x02);
1419  cbp += get_cabac_noinline(&sl->cabac, &sl->cabac_state[73 + ctx]) << 3;
1420  return cbp;
1421 }
1422 static int decode_cabac_mb_cbp_chroma(H264SliceContext *sl)
1423 {
1424  int ctx;
1425  int cbp_a, cbp_b;
1426 
1427  cbp_a = (sl->left_cbp>>4)&0x03;
1428  cbp_b = (sl-> top_cbp>>4)&0x03;
1429 
1430  ctx = 0;
1431  if( cbp_a > 0 ) ctx++;
1432  if( cbp_b > 0 ) ctx += 2;
1433  if( get_cabac_noinline( &sl->cabac, &sl->cabac_state[77 + ctx] ) == 0 )
1434  return 0;
1435 
1436  ctx = 4;
1437  if( cbp_a == 2 ) ctx++;
1438  if( cbp_b == 2 ) ctx += 2;
1439  return 1 + get_cabac_noinline( &sl->cabac, &sl->cabac_state[77 + ctx] );
1440 }
1441 
1442 static int decode_cabac_p_mb_sub_type(H264SliceContext *sl)
1443 {
1444  if( get_cabac( &sl->cabac, &sl->cabac_state[21] ) )
1445  return 0; /* 8x8 */
1446  if( !get_cabac( &sl->cabac, &sl->cabac_state[22] ) )
1447  return 1; /* 8x4 */
1448  if( get_cabac( &sl->cabac, &sl->cabac_state[23] ) )
1449  return 2; /* 4x8 */
1450  return 3; /* 4x4 */
1451 }
1452 static int decode_cabac_b_mb_sub_type(H264SliceContext *sl)
1453 {
1454  int type;
1455  if( !get_cabac( &sl->cabac, &sl->cabac_state[36] ) )
1456  return 0; /* B_Direct_8x8 */
1457  if( !get_cabac( &sl->cabac, &sl->cabac_state[37] ) )
1458  return 1 + get_cabac( &sl->cabac, &sl->cabac_state[39] ); /* B_L0_8x8, B_L1_8x8 */
1459  type = 3;
1460  if( get_cabac( &sl->cabac, &sl->cabac_state[38] ) ) {
1461  if( get_cabac( &sl->cabac, &sl->cabac_state[39] ) )
1462  return 11 + get_cabac( &sl->cabac, &sl->cabac_state[39] ); /* B_L1_4x4, B_Bi_4x4 */
1463  type += 4;
1464  }
1465  type += 2*get_cabac( &sl->cabac, &sl->cabac_state[39] );
1466  type += get_cabac( &sl->cabac, &sl->cabac_state[39] );
1467  return type;
1468 }
1469 
1470 static int decode_cabac_mb_ref(H264SliceContext *sl, int list, int n)
1471 {
1472  int refa = sl->ref_cache[list][scan8[n] - 1];
1473  int refb = sl->ref_cache[list][scan8[n] - 8];
1474  int ref = 0;
1475  int ctx = 0;
1476 
1477  if (sl->slice_type_nos == AV_PICTURE_TYPE_B) {
1478  if( refa > 0 && !(sl->direct_cache[scan8[n] - 1]&(MB_TYPE_DIRECT2>>1)) )
1479  ctx++;
1480  if( refb > 0 && !(sl->direct_cache[scan8[n] - 8]&(MB_TYPE_DIRECT2>>1)) )
1481  ctx += 2;
1482  } else {
1483  if( refa > 0 )
1484  ctx++;
1485  if( refb > 0 )
1486  ctx += 2;
1487  }
1488 
1489  while( get_cabac( &sl->cabac, &sl->cabac_state[54+ctx] ) ) {
1490  ref++;
1491  ctx = (ctx>>2)+4;
1492  if(ref >= 32 /*h->ref_list[list]*/){
1493  return -1;
1494  }
1495  }
1496  return ref;
1497 }
1498 
1499 static int decode_cabac_mb_mvd(H264SliceContext *sl, int ctxbase, int amvd, int *mvda)
1500 {
1501  int mvd;
1502 
1503  if(!get_cabac(&sl->cabac, &sl->cabac_state[ctxbase+((amvd-3)>>(INT_BIT-1))+((amvd-33)>>(INT_BIT-1))+2])){
1504 // if(!get_cabac(&sl->cabac, &sl->cabac_state[ctxbase+(amvd>2)+(amvd>32)])){
1505  *mvda= 0;
1506  return 0;
1507  }
1508 
1509  mvd= 1;
1510  ctxbase+= 3;
1511  while( mvd < 9 && get_cabac( &sl->cabac, &sl->cabac_state[ctxbase] ) ) {
1512  if( mvd < 4 )
1513  ctxbase++;
1514  mvd++;
1515  }
1516 
1517  if( mvd >= 9 ) {
1518  int k = 3;
1519  while( get_cabac_bypass( &sl->cabac ) ) {
1520  mvd += 1 << k;
1521  k++;
1522  if(k>24){
1523  av_log(sl->h264->avctx, AV_LOG_ERROR, "overflow in decode_cabac_mb_mvd\n");
1524  return INT_MIN;
1525  }
1526  }
1527  while( k-- ) {
1528  mvd += get_cabac_bypass( &sl->cabac )<<k;
1529  }
1530  *mvda=mvd < 70 ? mvd : 70;
1531  }else
1532  *mvda=mvd;
1533  return get_cabac_bypass_sign( &sl->cabac, -mvd );
1534 }
1535 
1536 #define DECODE_CABAC_MB_MVD(sl, list, n )\
1537 {\
1538  int amvd0 = sl->mvd_cache[list][scan8[n] - 1][0] +\
1539  sl->mvd_cache[list][scan8[n] - 8][0];\
1540  int amvd1 = sl->mvd_cache[list][scan8[n] - 1][1] +\
1541  sl->mvd_cache[list][scan8[n] - 8][1];\
1542 \
1543  int mxd = decode_cabac_mb_mvd(sl, 40, amvd0, &mpx);\
1544  int myd = decode_cabac_mb_mvd(sl, 47, amvd1, &mpy);\
1545  if (mxd == INT_MIN || myd == INT_MIN) \
1546  return AVERROR_INVALIDDATA; \
1547  mx += mxd;\
1548  my += myd;\
1549 }
1550 
1551 static av_always_inline int get_cabac_cbf_ctx(H264SliceContext *sl,
1552  int cat, int idx, int max_coeff,
1553  int is_dc)
1554 {
1555  int nza, nzb;
1556  int ctx = 0;
1557  static const uint16_t base_ctx[14] = {85,89,93,97,101,1012,460,464,468,1016,472,476,480,1020};
1558 
1559  if( is_dc ) {
1560  if( cat == 3 ) {
1561  idx -= CHROMA_DC_BLOCK_INDEX;
1562  nza = (sl->left_cbp>>(6+idx))&0x01;
1563  nzb = (sl-> top_cbp>>(6+idx))&0x01;
1564  } else {
1565  idx -= LUMA_DC_BLOCK_INDEX;
1566  nza = sl->left_cbp&(0x100<<idx);
1567  nzb = sl-> top_cbp&(0x100<<idx);
1568  }
1569  } else {
1570  nza = sl->non_zero_count_cache[scan8[idx] - 1];
1571  nzb = sl->non_zero_count_cache[scan8[idx] - 8];
1572  }
1573 
1574  if( nza > 0 )
1575  ctx++;
1576 
1577  if( nzb > 0 )
1578  ctx += 2;
1579 
1580  return base_ctx[cat] + ctx;
1581 }
1582 
1583 static av_always_inline void
1584 decode_cabac_residual_internal(const H264Context *h, H264SliceContext *sl,
1585  int16_t *block,
1586  int cat, int n, const uint8_t *scantable,
1587  const uint32_t *qmul, int max_coeff,
1588  int is_dc, int chroma422)
1589 {
1590  static const int significant_coeff_flag_offset[2][14] = {
1591  { 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 },
1592  { 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 }
1593  };
1594  static const int last_coeff_flag_offset[2][14] = {
1595  { 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 },
1596  { 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 }
1597  };
1598  static const int coeff_abs_level_m1_offset[14] = {
1599  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
1600  };
1601  static const uint8_t significant_coeff_flag_offset_8x8[2][63] = {
1602  { 0, 1, 2, 3, 4, 5, 5, 4, 4, 3, 3, 4, 4, 4, 5, 5,
1603  4, 4, 4, 4, 3, 3, 6, 7, 7, 7, 8, 9,10, 9, 8, 7,
1604  7, 6,11,12,13,11, 6, 7, 8, 9,14,10, 9, 8, 6,11,
1605  12,13,11, 6, 9,14,10, 9,11,12,13,11,14,10,12 },
1606  { 0, 1, 1, 2, 2, 3, 3, 4, 5, 6, 7, 7, 7, 8, 4, 5,
1607  6, 9,10,10, 8,11,12,11, 9, 9,10,10, 8,11,12,11,
1608  9, 9,10,10, 8,11,12,11, 9, 9,10,10, 8,13,13, 9,
1609  9,10,10, 8,13,13, 9, 9,10,10,14,14,14,14,14 }
1610  };
1611  static const uint8_t sig_coeff_offset_dc[7] = { 0, 0, 1, 1, 2, 2, 2 };
1612  /* node ctx: 0..3: abslevel1 (with abslevelgt1 == 0).
1613  * 4..7: abslevelgt1 + 3 (and abslevel1 doesn't matter).
1614  * map node ctx => cabac ctx for level=1 */
1615  static const uint8_t coeff_abs_level1_ctx[8] = { 1, 2, 3, 4, 0, 0, 0, 0 };
1616  /* map node ctx => cabac ctx for level>1 */
1617  static const uint8_t coeff_abs_levelgt1_ctx[2][8] = {
1618  { 5, 5, 5, 5, 6, 7, 8, 9 },
1619  { 5, 5, 5, 5, 6, 7, 8, 8 }, // 422/dc case
1620  };
1621  static const uint8_t coeff_abs_level_transition[2][8] = {
1622  /* update node ctx after decoding a level=1 */
1623  { 1, 2, 3, 3, 4, 5, 6, 7 },
1624  /* update node ctx after decoding a level>1 */
1625  { 4, 4, 4, 4, 5, 6, 7, 7 }
1626  };
1627 
1628  int index[64];
1629 
1630  int last;
1631  int coeff_count = 0;
1632  int node_ctx = 0;
1633 
1634  uint8_t *significant_coeff_ctx_base;
1635  uint8_t *last_coeff_ctx_base;
1636  uint8_t *abs_level_m1_ctx_base;
1637 
1638 #if !ARCH_X86
1639 #define CABAC_ON_STACK
1640 #endif
1641 #ifdef CABAC_ON_STACK
1642 #define CC &cc
1643  CABACContext cc;
1644  cc.range = sl->cabac.range;
1645  cc.low = sl->cabac.low;
1646  cc.bytestream= sl->cabac.bytestream;
1647 #if !UNCHECKED_BITSTREAM_READER || ARCH_AARCH64
1648  cc.bytestream_end = sl->cabac.bytestream_end;
1649 #endif
1650 #else
1651 #define CC &sl->cabac
1652 #endif
1653 
1654  significant_coeff_ctx_base = sl->cabac_state
1655  + significant_coeff_flag_offset[MB_FIELD(sl)][cat];
1656  last_coeff_ctx_base = sl->cabac_state
1657  + last_coeff_flag_offset[MB_FIELD(sl)][cat];
1658  abs_level_m1_ctx_base = sl->cabac_state
1659  + coeff_abs_level_m1_offset[cat];
1660 
1661  if( !is_dc && max_coeff == 64 ) {
1662 #define DECODE_SIGNIFICANCE( coefs, sig_off, last_off ) \
1663  for(last= 0; last < coefs; last++) { \
1664  uint8_t *sig_ctx = significant_coeff_ctx_base + sig_off; \
1665  if( get_cabac( CC, sig_ctx )) { \
1666  uint8_t *last_ctx = last_coeff_ctx_base + last_off; \
1667  index[coeff_count++] = last; \
1668  if( get_cabac( CC, last_ctx ) ) { \
1669  last= max_coeff; \
1670  break; \
1671  } \
1672  } \
1673  }\
1674  if( last == max_coeff -1 ) {\
1675  index[coeff_count++] = last;\
1676  }
1677  const uint8_t *sig_off = significant_coeff_flag_offset_8x8[MB_FIELD(sl)];
1678 #ifdef decode_significance
1679  coeff_count = decode_significance_8x8(CC, significant_coeff_ctx_base, index,
1680  last_coeff_ctx_base, sig_off);
1681  } else {
1682  if (is_dc && chroma422) { // dc 422
1683  DECODE_SIGNIFICANCE(7, sig_coeff_offset_dc[last], sig_coeff_offset_dc[last]);
1684  } else {
1685  coeff_count = decode_significance(CC, max_coeff, significant_coeff_ctx_base, index,
1686  last_coeff_ctx_base-significant_coeff_ctx_base);
1687  }
1688 #else
1689  DECODE_SIGNIFICANCE( 63, sig_off[last], ff_h264_last_coeff_flag_offset_8x8[last] );
1690  } else {
1691  if (is_dc && chroma422) { // dc 422
1692  DECODE_SIGNIFICANCE(7, sig_coeff_offset_dc[last], sig_coeff_offset_dc[last]);
1693  } else {
1694  DECODE_SIGNIFICANCE(max_coeff - 1, last, last);
1695  }
1696 #endif
1697  }
1698  av_assert2(coeff_count > 0);
1699 
1700  if( is_dc ) {
1701  if( cat == 3 )
1702  h->cbp_table[sl->mb_xy] |= 0x40 << (n - CHROMA_DC_BLOCK_INDEX);
1703  else
1704  h->cbp_table[sl->mb_xy] |= 0x100 << (n - LUMA_DC_BLOCK_INDEX);
1705  sl->non_zero_count_cache[scan8[n]] = coeff_count;
1706  } else {
1707  if( max_coeff == 64 )
1708  fill_rectangle(&sl->non_zero_count_cache[scan8[n]], 2, 2, 8, coeff_count, 1);
1709  else {
1710  av_assert2( cat == 1 || cat == 2 || cat == 4 || cat == 7 || cat == 8 || cat == 11 || cat == 12 );
1711  sl->non_zero_count_cache[scan8[n]] = coeff_count;
1712  }
1713  }
1714 
1715 #define STORE_BLOCK(type) \
1716  do { \
1717  uint8_t *ctx = coeff_abs_level1_ctx[node_ctx] + abs_level_m1_ctx_base; \
1718  \
1719  int j= scantable[index[--coeff_count]]; \
1720  \
1721  if( get_cabac( CC, ctx ) == 0 ) { \
1722  node_ctx = coeff_abs_level_transition[0][node_ctx]; \
1723  if( is_dc ) { \
1724  ((type*)block)[j] = get_cabac_bypass_sign( CC, -1); \
1725  }else{ \
1726  ((type*)block)[j] = (get_cabac_bypass_sign( CC, -qmul[j]) + 32) >> 6; \
1727  } \
1728  } else { \
1729  int coeff_abs = 2; \
1730  ctx = coeff_abs_levelgt1_ctx[is_dc && chroma422][node_ctx] + abs_level_m1_ctx_base; \
1731  node_ctx = coeff_abs_level_transition[1][node_ctx]; \
1732 \
1733  while( coeff_abs < 15 && get_cabac( CC, ctx ) ) { \
1734  coeff_abs++; \
1735  } \
1736 \
1737  if( coeff_abs >= 15 ) { \
1738  int j = 0; \
1739  while (get_cabac_bypass(CC) && j < 30) { \
1740  j++; \
1741  } \
1742 \
1743  coeff_abs=1; \
1744  while( j-- ) { \
1745  coeff_abs += coeff_abs + get_cabac_bypass( CC ); \
1746  } \
1747  coeff_abs+= 14; \
1748  } \
1749 \
1750  if( is_dc ) { \
1751  ((type*)block)[j] = get_cabac_bypass_sign( CC, -coeff_abs ); \
1752  }else{ \
1753  ((type*)block)[j] = ((int)(get_cabac_bypass_sign( CC, -coeff_abs ) * qmul[j] + 32)) >> 6; \
1754  } \
1755  } \
1756  } while ( coeff_count );
1757 
1758  if (h->pixel_shift) {
1759  STORE_BLOCK(int32_t)
1760  } else {
1761  STORE_BLOCK(int16_t)
1762  }
1763 #ifdef CABAC_ON_STACK
1764  sl->cabac.range = cc.range ;
1765  sl->cabac.low = cc.low ;
1766  sl->cabac.bytestream= cc.bytestream;
1767 #endif
1768 
1769 }
1770 
1771 static av_noinline void decode_cabac_residual_dc_internal(const H264Context *h,
1772  H264SliceContext *sl,
1773  int16_t *block,
1774  int cat, int n,
1775  const uint8_t *scantable,
1776  int max_coeff)
1777 {
1778  decode_cabac_residual_internal(h, sl, block, cat, n, scantable, NULL, max_coeff, 1, 0);
1779 }
1780 
1781 static av_noinline void decode_cabac_residual_dc_internal_422(const H264Context *h,
1782  H264SliceContext *sl,
1783  int16_t *block,
1784  int cat, int n,
1785  const uint8_t *scantable,
1786  int max_coeff)
1787 {
1788  decode_cabac_residual_internal(h, sl, block, cat, n, scantable, NULL, max_coeff, 1, 1);
1789 }
1790 
1791 static av_noinline void decode_cabac_residual_nondc_internal(const H264Context *h,
1792  H264SliceContext *sl,
1793  int16_t *block,
1794  int cat, int n,
1795  const uint8_t *scantable,
1796  const uint32_t *qmul,
1797  int max_coeff)
1798 {
1799  decode_cabac_residual_internal(h, sl, block, cat, n, scantable, qmul, max_coeff, 0, 0);
1800 }
1801 
1802 /* cat: 0-> DC 16x16 n = 0
1803  * 1-> AC 16x16 n = luma4x4idx
1804  * 2-> Luma4x4 n = luma4x4idx
1805  * 3-> DC Chroma n = iCbCr
1806  * 4-> AC Chroma n = 16 + 4 * iCbCr + chroma4x4idx
1807  * 5-> Luma8x8 n = 4 * luma8x8idx */
1808 
1809 /* Partially inline the CABAC residual decode: inline the coded block flag.
1810  * This has very little impact on binary size and improves performance
1811  * because it allows improved constant propagation into get_cabac_cbf_ctx,
1812  * as well as because most blocks have zero CBFs. */
1813 
1814 static av_always_inline void decode_cabac_residual_dc(const H264Context *h,
1815  H264SliceContext *sl,
1816  int16_t *block,
1817  int cat, int n,
1818  const uint8_t *scantable,
1819  int max_coeff)
1820 {
1821  /* read coded block flag */
1822  if( get_cabac( &sl->cabac, &sl->cabac_state[get_cabac_cbf_ctx(sl, cat, n, max_coeff, 1)]) == 0 ) {
1823  sl->non_zero_count_cache[scan8[n]] = 0;
1824  return;
1825  }
1826  decode_cabac_residual_dc_internal(h, sl, block, cat, n, scantable, max_coeff);
1827 }
1828 
1829 static av_always_inline void
1830 decode_cabac_residual_dc_422(const H264Context *h, H264SliceContext *sl,
1831  int16_t *block,
1832  int cat, int n, const uint8_t *scantable,
1833  int max_coeff)
1834 {
1835  /* read coded block flag */
1836  if (get_cabac(&sl->cabac, &sl->cabac_state[get_cabac_cbf_ctx(sl, cat, n, max_coeff, 1)]) == 0) {
1837  sl->non_zero_count_cache[scan8[n]] = 0;
1838  return;
1839  }
1840  decode_cabac_residual_dc_internal_422(h, sl, block, cat, n, scantable, max_coeff);
1841 }
1842 
1843 static av_always_inline void decode_cabac_residual_nondc(const H264Context *h,
1844  H264SliceContext *sl,
1845  int16_t *block,
1846  int cat, int n,
1847  const uint8_t *scantable,
1848  const uint32_t *qmul,
1849  int max_coeff)
1850 {
1851  /* read coded block flag */
1852  if( (cat != 5 || CHROMA444(h)) && get_cabac( &sl->cabac, &sl->cabac_state[get_cabac_cbf_ctx(sl, cat, n, max_coeff, 0)]) == 0) {
1853  if( max_coeff == 64 ) {
1854  fill_rectangle(&sl->non_zero_count_cache[scan8[n]], 2, 2, 8, 0, 1);
1855  } else {
1856  sl->non_zero_count_cache[scan8[n]] = 0;
1857  }
1858  return;
1859  }
1860  decode_cabac_residual_nondc_internal(h, sl, block, cat, n, scantable, qmul, max_coeff);
1861 }
1862 
1863 static av_always_inline void decode_cabac_luma_residual(const H264Context *h, H264SliceContext *sl,
1864  const uint8_t *scan, const uint8_t *scan8x8,
1865  int pixel_shift, int mb_type, int cbp, int p)
1866 {
1867  static const uint8_t ctx_cat[4][3] = {{0,6,10},{1,7,11},{2,8,12},{5,9,13}};
1868  const uint32_t *qmul;
1869  int i8x8, i4x4;
1870  int qscale = p == 0 ? sl->qscale : sl->chroma_qp[p - 1];
1871  if( IS_INTRA16x16( mb_type ) ) {
1872  AV_ZERO128(sl->mb_luma_dc[p]+0);
1873  AV_ZERO128(sl->mb_luma_dc[p]+8);
1874  AV_ZERO128(sl->mb_luma_dc[p]+16);
1875  AV_ZERO128(sl->mb_luma_dc[p]+24);
1876  decode_cabac_residual_dc(h, sl, sl->mb_luma_dc[p], ctx_cat[0][p], LUMA_DC_BLOCK_INDEX+p, scan, 16);
1877 
1878  if( cbp&15 ) {
1879  qmul = h->dequant4_coeff[p][qscale];
1880  for( i4x4 = 0; i4x4 < 16; i4x4++ ) {
1881  const int index = 16*p + i4x4;
1882  decode_cabac_residual_nondc(h, sl, sl->mb + (16*index << pixel_shift), ctx_cat[1][p], index, scan + 1, qmul, 15);
1883  }
1884  } else {
1885  fill_rectangle(&sl->non_zero_count_cache[scan8[16*p]], 4, 4, 8, 0, 1);
1886  }
1887  } else {
1888  int cqm = (IS_INTRA( mb_type ) ? 0:3) + p;
1889  for( i8x8 = 0; i8x8 < 4; i8x8++ ) {
1890  if( cbp & (1<<i8x8) ) {
1891  if( IS_8x8DCT(mb_type) ) {
1892  const int index = 16*p + 4*i8x8;
1893  decode_cabac_residual_nondc(h, sl, sl->mb + (16*index << pixel_shift), ctx_cat[3][p], index,
1894  scan8x8, h->dequant8_coeff[cqm][qscale], 64);
1895  } else {
1896  qmul = h->dequant4_coeff[cqm][qscale];
1897  for( i4x4 = 0; i4x4 < 4; i4x4++ ) {
1898  const int index = 16*p + 4*i8x8 + i4x4;
1899 //START_TIMER
1900  decode_cabac_residual_nondc(h, sl, sl->mb + (16*index << pixel_shift), ctx_cat[2][p], index, scan, qmul, 16);
1901 //STOP_TIMER("decode_residual")
1902  }
1903  }
1904  } else {
1905  fill_rectangle(&sl->non_zero_count_cache[scan8[4*i8x8+16*p]], 2, 2, 8, 0, 1);
1906  }
1907  }
1908  }
1909 }
1910 
1911 /**
1912  * Decode a macroblock.
1913  * @return 0 if OK, ER_AC_ERROR / ER_DC_ERROR / ER_MV_ERROR if an error is noticed
1914  */
1915 int ff_h264_decode_mb_cabac(const H264Context *h, H264SliceContext *sl)
1916 {
1917  int mb_xy;
1918  int mb_type, partition_count, cbp = 0;
1919  int dct8x8_allowed= h->pps.transform_8x8_mode;
1920  int decode_chroma = h->sps.chroma_format_idc == 1 || h->sps.chroma_format_idc == 2;
1921  const int pixel_shift = h->pixel_shift;
1922 
1923  mb_xy = sl->mb_xy = sl->mb_x + sl->mb_y*h->mb_stride;
1924 
1925  ff_tlog(h->avctx, "pic:%d mb:%d/%d\n", h->frame_num, sl->mb_x, sl->mb_y);
1926  if (sl->slice_type_nos != AV_PICTURE_TYPE_I) {
1927  int skip;
1928  /* a skipped mb needs the aff flag from the following mb */
1929  if (FRAME_MBAFF(h) && (sl->mb_y & 1) == 1 && sl->prev_mb_skipped)
1930  skip = sl->next_mb_skipped;
1931  else
1932  skip = decode_cabac_mb_skip(h, sl, sl->mb_x, sl->mb_y );
1933  /* read skip flags */
1934  if( skip ) {
1935  if (FRAME_MBAFF(h) && (sl->mb_y & 1) == 0) {
1936  h->cur_pic.mb_type[mb_xy] = MB_TYPE_SKIP;
1937  sl->next_mb_skipped = decode_cabac_mb_skip(h, sl, sl->mb_x, sl->mb_y+1 );
1938  if(!sl->next_mb_skipped)
1939  sl->mb_mbaff = sl->mb_field_decoding_flag = decode_cabac_field_decoding_flag(h, sl);
1940  }
1941 
1942  decode_mb_skip(h, sl);
1943 
1944  h->cbp_table[mb_xy] = 0;
1945  h->chroma_pred_mode_table[mb_xy] = 0;
1946  sl->last_qscale_diff = 0;
1947 
1948  return 0;
1949 
1950  }
1951  }
1952  if (FRAME_MBAFF(h)) {
1953  if ((sl->mb_y & 1) == 0)
1954  sl->mb_mbaff =
1955  sl->mb_field_decoding_flag = decode_cabac_field_decoding_flag(h, sl);
1956  }
1957 
1958  sl->prev_mb_skipped = 0;
1959 
1960  fill_decode_neighbors(h, sl, -(MB_FIELD(sl)));
1961 
1962  if (sl->slice_type_nos == AV_PICTURE_TYPE_B) {
1963  int ctx = 0;
1964  av_assert2(sl->slice_type_nos == AV_PICTURE_TYPE_B);
1965 
1966  if (!IS_DIRECT(sl->left_type[LTOP] - 1))
1967  ctx++;
1968  if (!IS_DIRECT(sl->top_type - 1))
1969  ctx++;
1970 
1971  if( !get_cabac_noinline( &sl->cabac, &sl->cabac_state[27+ctx] ) ){
1972  mb_type= 0; /* B_Direct_16x16 */
1973  }else if( !get_cabac_noinline( &sl->cabac, &sl->cabac_state[27+3] ) ) {
1974  mb_type= 1 + get_cabac_noinline( &sl->cabac, &sl->cabac_state[27+5] ); /* B_L[01]_16x16 */
1975  }else{
1976  int bits;
1977  bits = get_cabac_noinline( &sl->cabac, &sl->cabac_state[27+4] ) << 3;
1978  bits+= get_cabac_noinline( &sl->cabac, &sl->cabac_state[27+5] ) << 2;
1979  bits+= get_cabac_noinline( &sl->cabac, &sl->cabac_state[27+5] ) << 1;
1980  bits+= get_cabac_noinline( &sl->cabac, &sl->cabac_state[27+5] );
1981  if( bits < 8 ){
1982  mb_type= bits + 3; /* B_Bi_16x16 through B_L1_L0_16x8 */
1983  }else if( bits == 13 ){
1984  mb_type = decode_cabac_intra_mb_type(sl, 32, 0);
1985  goto decode_intra_mb;
1986  }else if( bits == 14 ){
1987  mb_type= 11; /* B_L1_L0_8x16 */
1988  }else if( bits == 15 ){
1989  mb_type= 22; /* B_8x8 */
1990  }else{
1991  bits= ( bits<<1 ) + get_cabac_noinline( &sl->cabac, &sl->cabac_state[27+5] );
1992  mb_type= bits - 4; /* B_L0_Bi_* through B_Bi_Bi_* */
1993  }
1994  }
1995  partition_count= b_mb_type_info[mb_type].partition_count;
1996  mb_type= b_mb_type_info[mb_type].type;
1997  } else if (sl->slice_type_nos == AV_PICTURE_TYPE_P) {
1998  if( get_cabac_noinline( &sl->cabac, &sl->cabac_state[14] ) == 0 ) {
1999  /* P-type */
2000  if( get_cabac_noinline( &sl->cabac, &sl->cabac_state[15] ) == 0 ) {
2001  /* P_L0_D16x16, P_8x8 */
2002  mb_type= 3 * get_cabac_noinline( &sl->cabac, &sl->cabac_state[16] );
2003  } else {
2004  /* P_L0_D8x16, P_L0_D16x8 */
2005  mb_type= 2 - get_cabac_noinline( &sl->cabac, &sl->cabac_state[17] );
2006  }
2007  partition_count= p_mb_type_info[mb_type].partition_count;
2008  mb_type= p_mb_type_info[mb_type].type;
2009  } else {
2010  mb_type = decode_cabac_intra_mb_type(sl, 17, 0);
2011  goto decode_intra_mb;
2012  }
2013  } else {
2014  mb_type = decode_cabac_intra_mb_type(sl, 3, 1);
2015  if (sl->slice_type == AV_PICTURE_TYPE_SI && mb_type)
2016  mb_type--;
2017  av_assert2(sl->slice_type_nos == AV_PICTURE_TYPE_I);
2018 decode_intra_mb:
2019  partition_count = 0;
2020  cbp= i_mb_type_info[mb_type].cbp;
2021  sl->intra16x16_pred_mode = i_mb_type_info[mb_type].pred_mode;
2022  mb_type= i_mb_type_info[mb_type].type;
2023  }
2024  if (MB_FIELD(sl))
2025  mb_type |= MB_TYPE_INTERLACED;
2026 
2027  h->slice_table[mb_xy] = sl->slice_num;
2028 
2029  if(IS_INTRA_PCM(mb_type)) {
2030  const int mb_size = ff_h264_mb_sizes[h->sps.chroma_format_idc] *
2031  h->sps.bit_depth_luma >> 3;
2032  const uint8_t *ptr;
2033  int ret;
2034 
2035  // We assume these blocks are very rare so we do not optimize it.
2036  // FIXME The two following lines get the bitstream position in the cabac
2037  // decode, I think it should be done by a function in cabac.h (or cabac.c).
2038  ptr= sl->cabac.bytestream;
2039  if(sl->cabac.low&0x1) ptr--;
2040  if(CABAC_BITS==16){
2041  if(sl->cabac.low&0x1FF) ptr--;
2042  }
2043 
2044  // The pixels are stored in the same order as levels in h->mb array.
2045  if ((int) (sl->cabac.bytestream_end - ptr) < mb_size)
2046  return -1;
2047  sl->intra_pcm_ptr = ptr;
2048  ptr += mb_size;
2049 
2050  ret = ff_init_cabac_decoder(&sl->cabac, ptr, sl->cabac.bytestream_end - ptr);
2051  if (ret < 0)
2052  return ret;
2053 
2054  // All blocks are present
2055  h->cbp_table[mb_xy] = 0xf7ef;
2056  h->chroma_pred_mode_table[mb_xy] = 0;
2057  // In deblocking, the quantizer is 0
2058  h->cur_pic.qscale_table[mb_xy] = 0;
2059  // All coeffs are present
2060  memset(h->non_zero_count[mb_xy], 16, 48);
2061  h->cur_pic.mb_type[mb_xy] = mb_type;
2062  sl->last_qscale_diff = 0;
2063  return 0;
2064  }
2065 
2066  fill_decode_caches(h, sl, mb_type);
2067 
2068  if( IS_INTRA( mb_type ) ) {
2069  int i, pred_mode;
2070  if( IS_INTRA4x4( mb_type ) ) {
2071  if (dct8x8_allowed && get_cabac_noinline(&sl->cabac, &sl->cabac_state[399 + sl->neighbor_transform_size])) {
2072  mb_type |= MB_TYPE_8x8DCT;
2073  for( i = 0; i < 16; i+=4 ) {
2074  int pred = pred_intra_mode(h, sl, i);
2075  int mode = decode_cabac_mb_intra4x4_pred_mode(sl, pred);
2076  fill_rectangle(&sl->intra4x4_pred_mode_cache[scan8[i]], 2, 2, 8, mode, 1);
2077  }
2078  } else {
2079  for( i = 0; i < 16; i++ ) {
2080  int pred = pred_intra_mode(h, sl, i);
2081  sl->intra4x4_pred_mode_cache[scan8[i]] = decode_cabac_mb_intra4x4_pred_mode(sl, pred);
2082 
2083  ff_tlog(h->avctx, "i4x4 pred=%d mode=%d\n", pred,
2084  sl->intra4x4_pred_mode_cache[scan8[i]]);
2085  }
2086  }
2087  write_back_intra_pred_mode(h, sl);
2088  if (ff_h264_check_intra4x4_pred_mode(h, sl) < 0 ) return -1;
2089  } else {
2090  sl->intra16x16_pred_mode = ff_h264_check_intra_pred_mode(h, sl, sl->intra16x16_pred_mode, 0);
2091  if (sl->intra16x16_pred_mode < 0) return -1;
2092  }
2093  if(decode_chroma){
2094  h->chroma_pred_mode_table[mb_xy] =
2095  pred_mode = decode_cabac_mb_chroma_pre_mode(h, sl);
2096 
2097  pred_mode= ff_h264_check_intra_pred_mode(h, sl, pred_mode, 1 );
2098  if( pred_mode < 0 ) return -1;
2099  sl->chroma_pred_mode = pred_mode;
2100  } else {
2101  sl->chroma_pred_mode = DC_128_PRED8x8;
2102  }
2103  } else if( partition_count == 4 ) {
2104  int i, j, sub_partition_count[4], list, ref[2][4];
2105 
2106  if (sl->slice_type_nos == AV_PICTURE_TYPE_B ) {
2107  for( i = 0; i < 4; i++ ) {
2108  sl->sub_mb_type[i] = decode_cabac_b_mb_sub_type(sl);
2109  sub_partition_count[i] = b_sub_mb_type_info[sl->sub_mb_type[i]].partition_count;
2110  sl->sub_mb_type[i] = b_sub_mb_type_info[sl->sub_mb_type[i]].type;
2111  }
2112  if (IS_DIRECT(sl->sub_mb_type[0] | sl->sub_mb_type[1] |
2113  sl->sub_mb_type[2] | sl->sub_mb_type[3])) {
2114  ff_h264_pred_direct_motion(h, sl, &mb_type);
2115  sl->ref_cache[0][scan8[4]] =
2116  sl->ref_cache[1][scan8[4]] =
2117  sl->ref_cache[0][scan8[12]] =
2118  sl->ref_cache[1][scan8[12]] = PART_NOT_AVAILABLE;
2119  for( i = 0; i < 4; i++ )
2120  fill_rectangle(&sl->direct_cache[scan8[4*i]], 2, 2, 8, (sl->sub_mb_type[i] >> 1) & 0xFF, 1);
2121  }
2122  } else {
2123  for( i = 0; i < 4; i++ ) {
2124  sl->sub_mb_type[i] = decode_cabac_p_mb_sub_type(sl);
2125  sub_partition_count[i] = p_sub_mb_type_info[sl->sub_mb_type[i]].partition_count;
2126  sl->sub_mb_type[i] = p_sub_mb_type_info[sl->sub_mb_type[i]].type;
2127  }
2128  }
2129 
2130  for( list = 0; list < sl->list_count; list++ ) {
2131  for( i = 0; i < 4; i++ ) {
2132  if(IS_DIRECT(sl->sub_mb_type[i])) continue;
2133  if(IS_DIR(sl->sub_mb_type[i], 0, list)){
2134  unsigned rc = sl->ref_count[list] << MB_MBAFF(sl);
2135  if (rc > 1) {
2136  ref[list][i] = decode_cabac_mb_ref(sl, list, 4 * i);
2137  if (ref[list][i] >= rc) {
2138  av_log(h->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref[list][i], rc);
2139  return -1;
2140  }
2141  }else
2142  ref[list][i] = 0;
2143  } else {
2144  ref[list][i] = -1;
2145  }
2146  sl->ref_cache[list][scan8[4 * i] + 1] =
2147  sl->ref_cache[list][scan8[4 * i] + 8] = sl->ref_cache[list][scan8[4 * i] + 9] = ref[list][i];
2148  }
2149  }
2150 
2151  if(dct8x8_allowed)
2152  dct8x8_allowed = get_dct8x8_allowed(h, sl);
2153 
2154  for (list = 0; list < sl->list_count; list++) {
2155  for(i=0; i<4; i++){
2156  sl->ref_cache[list][scan8[4 * i]] = sl->ref_cache[list][scan8[4 * i] + 1];
2157  if(IS_DIRECT(sl->sub_mb_type[i])){
2158  fill_rectangle(sl->mvd_cache[list][scan8[4*i]], 2, 2, 8, 0, 2);
2159  continue;
2160  }
2161 
2162  if(IS_DIR(sl->sub_mb_type[i], 0, list) && !IS_DIRECT(sl->sub_mb_type[i])){
2163  const int sub_mb_type= sl->sub_mb_type[i];
2164  const int block_width= (sub_mb_type & (MB_TYPE_16x16|MB_TYPE_16x8)) ? 2 : 1;
2165  for(j=0; j<sub_partition_count[i]; j++){
2166  int mpx, mpy;
2167  int mx, my;
2168  const int index= 4*i + block_width*j;
2169  int16_t (* mv_cache)[2] = &sl->mv_cache[list][ scan8[index] ];
2170  uint8_t (* mvd_cache)[2]= &sl->mvd_cache[list][ scan8[index] ];
2171  pred_motion(h, sl, index, block_width, list, sl->ref_cache[list][ scan8[index] ], &mx, &my);
2172  DECODE_CABAC_MB_MVD(sl, list, index)
2173  ff_tlog(h->avctx, "final mv:%d %d\n", mx, my);
2174 
2175  if(IS_SUB_8X8(sub_mb_type)){
2176  mv_cache[ 1 ][0]=
2177  mv_cache[ 8 ][0]= mv_cache[ 9 ][0]= mx;
2178  mv_cache[ 1 ][1]=
2179  mv_cache[ 8 ][1]= mv_cache[ 9 ][1]= my;
2180 
2181  mvd_cache[ 1 ][0]=
2182  mvd_cache[ 8 ][0]= mvd_cache[ 9 ][0]= mpx;
2183  mvd_cache[ 1 ][1]=
2184  mvd_cache[ 8 ][1]= mvd_cache[ 9 ][1]= mpy;
2185  }else if(IS_SUB_8X4(sub_mb_type)){
2186  mv_cache[ 1 ][0]= mx;
2187  mv_cache[ 1 ][1]= my;
2188 
2189  mvd_cache[ 1 ][0]= mpx;
2190  mvd_cache[ 1 ][1]= mpy;
2191  }else if(IS_SUB_4X8(sub_mb_type)){
2192  mv_cache[ 8 ][0]= mx;
2193  mv_cache[ 8 ][1]= my;
2194 
2195  mvd_cache[ 8 ][0]= mpx;
2196  mvd_cache[ 8 ][1]= mpy;
2197  }
2198  mv_cache[ 0 ][0]= mx;
2199  mv_cache[ 0 ][1]= my;
2200 
2201  mvd_cache[ 0 ][0]= mpx;
2202  mvd_cache[ 0 ][1]= mpy;
2203  }
2204  }else{
2205  fill_rectangle(sl->mv_cache [list][ scan8[4*i] ], 2, 2, 8, 0, 4);
2206  fill_rectangle(sl->mvd_cache[list][ scan8[4*i] ], 2, 2, 8, 0, 2);
2207  }
2208  }
2209  }
2210  } else if( IS_DIRECT(mb_type) ) {
2211  ff_h264_pred_direct_motion(h, sl, &mb_type);
2212  fill_rectangle(sl->mvd_cache[0][scan8[0]], 4, 4, 8, 0, 2);
2213  fill_rectangle(sl->mvd_cache[1][scan8[0]], 4, 4, 8, 0, 2);
2214  dct8x8_allowed &= h->sps.direct_8x8_inference_flag;
2215  } else {
2216  int list, i;
2217  if(IS_16X16(mb_type)){
2218  for (list = 0; list < sl->list_count; list++) {
2219  if(IS_DIR(mb_type, 0, list)){
2220  int ref;
2221  unsigned rc = sl->ref_count[list] << MB_MBAFF(sl);
2222  if (rc > 1) {
2223  ref= decode_cabac_mb_ref(sl, list, 0);
2224  if (ref >= rc) {
2225  av_log(h->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref, rc);
2226  return -1;
2227  }
2228  }else
2229  ref=0;
2230  fill_rectangle(&sl->ref_cache[list][ scan8[0] ], 4, 4, 8, ref, 1);
2231  }
2232  }
2233  for (list = 0; list < sl->list_count; list++) {
2234  if(IS_DIR(mb_type, 0, list)){
2235  int mx,my,mpx,mpy;
2236  pred_motion(h, sl, 0, 4, list, sl->ref_cache[list][ scan8[0] ], &mx, &my);
2237  DECODE_CABAC_MB_MVD(sl, list, 0)
2238  ff_tlog(h->avctx, "final mv:%d %d\n", mx, my);
2239 
2240  fill_rectangle(sl->mvd_cache[list][ scan8[0] ], 4, 4, 8, pack8to16(mpx,mpy), 2);
2241  fill_rectangle(sl->mv_cache[list][ scan8[0] ], 4, 4, 8, pack16to32(mx,my), 4);
2242  }
2243  }
2244  }
2245  else if(IS_16X8(mb_type)){
2246  for (list = 0; list < sl->list_count; list++) {
2247  for(i=0; i<2; i++){
2248  if(IS_DIR(mb_type, i, list)){
2249  int ref;
2250  unsigned rc = sl->ref_count[list] << MB_MBAFF(sl);
2251  if (rc > 1) {
2252  ref= decode_cabac_mb_ref(sl, list, 8 * i);
2253  if (ref >= rc) {
2254  av_log(h->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref, rc);
2255  return -1;
2256  }
2257  }else
2258  ref=0;
2259  fill_rectangle(&sl->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, ref, 1);
2260  }else
2261  fill_rectangle(&sl->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, (LIST_NOT_USED&0xFF), 1);
2262  }
2263  }
2264  for (list = 0; list < sl->list_count; list++) {
2265  for(i=0; i<2; i++){
2266  if(IS_DIR(mb_type, i, list)){
2267  int mx,my,mpx,mpy;
2268  pred_16x8_motion(h, sl, 8*i, list, sl->ref_cache[list][scan8[0] + 16*i], &mx, &my);
2269  DECODE_CABAC_MB_MVD(sl, list, 8*i)
2270  ff_tlog(h->avctx, "final mv:%d %d\n", mx, my);
2271 
2272  fill_rectangle(sl->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack8to16(mpx,mpy), 2);
2273  fill_rectangle(sl->mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack16to32(mx,my), 4);
2274  }else{
2275  fill_rectangle(sl->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 2);
2276  fill_rectangle(sl->mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 4);
2277  }
2278  }
2279  }
2280  }else{
2281  av_assert2(IS_8X16(mb_type));
2282  for (list = 0; list < sl->list_count; list++) {
2283  for(i=0; i<2; i++){
2284  if(IS_DIR(mb_type, i, list)){ //FIXME optimize
2285  int ref;
2286  unsigned rc = sl->ref_count[list] << MB_MBAFF(sl);
2287  if (rc > 1) {
2288  ref = decode_cabac_mb_ref(sl, list, 4 * i);
2289  if (ref >= rc) {
2290  av_log(h->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref, rc);
2291  return -1;
2292  }
2293  }else
2294  ref=0;
2295  fill_rectangle(&sl->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, ref, 1);
2296  }else
2297  fill_rectangle(&sl->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, (LIST_NOT_USED&0xFF), 1);
2298  }
2299  }
2300  for (list = 0; list < sl->list_count; list++) {
2301  for(i=0; i<2; i++){
2302  if(IS_DIR(mb_type, i, list)){
2303  int mx,my,mpx,mpy;
2304  pred_8x16_motion(h, sl, i*4, list, sl->ref_cache[list][ scan8[0] + 2*i ], &mx, &my);
2305  DECODE_CABAC_MB_MVD(sl, list, 4*i)
2306 
2307  ff_tlog(h->avctx, "final mv:%d %d\n", mx, my);
2308  fill_rectangle(sl->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack8to16(mpx,mpy), 2);
2309  fill_rectangle(sl->mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack16to32(mx,my), 4);
2310  }else{
2311  fill_rectangle(sl->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 2);
2312  fill_rectangle(sl->mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 4);
2313  }
2314  }
2315  }
2316  }
2317  }
2318 
2319  if( IS_INTER( mb_type ) ) {
2320  h->chroma_pred_mode_table[mb_xy] = 0;
2321  write_back_motion(h, sl, mb_type);
2322  }
2323 
2324  if( !IS_INTRA16x16( mb_type ) ) {
2325  cbp = decode_cabac_mb_cbp_luma(sl);
2326  if(decode_chroma)
2327  cbp |= decode_cabac_mb_cbp_chroma(sl) << 4;
2328  } else {
2329  if (!decode_chroma && cbp>15) {
2330  av_log(h->avctx, AV_LOG_ERROR, "gray chroma\n");
2331  return AVERROR_INVALIDDATA;
2332  }
2333  }
2334 
2335  h->cbp_table[mb_xy] = sl->cbp = cbp;
2336 
2337  if( dct8x8_allowed && (cbp&15) && !IS_INTRA( mb_type ) ) {
2338  mb_type |= MB_TYPE_8x8DCT * get_cabac_noinline(&sl->cabac, &sl->cabac_state[399 + sl->neighbor_transform_size]);
2339  }
2340 
2341  /* It would be better to do this in fill_decode_caches, but we don't know
2342  * the transform mode of the current macroblock there. */
2343  if (CHROMA444(h) && IS_8x8DCT(mb_type)){
2344  int i;
2345  uint8_t *nnz_cache = sl->non_zero_count_cache;
2346  for (i = 0; i < 2; i++){
2347  if (sl->left_type[LEFT(i)] && !IS_8x8DCT(sl->left_type[LEFT(i)])) {
2348  nnz_cache[3+8* 1 + 2*8*i]=
2349  nnz_cache[3+8* 2 + 2*8*i]=
2350  nnz_cache[3+8* 6 + 2*8*i]=
2351  nnz_cache[3+8* 7 + 2*8*i]=
2352  nnz_cache[3+8*11 + 2*8*i]=
2353  nnz_cache[3+8*12 + 2*8*i]= IS_INTRA(mb_type) ? 64 : 0;
2354  }
2355  }
2356  if (sl->top_type && !IS_8x8DCT(sl->top_type)){
2357  uint32_t top_empty = CABAC(h) && !IS_INTRA(mb_type) ? 0 : 0x40404040;
2358  AV_WN32A(&nnz_cache[4+8* 0], top_empty);
2359  AV_WN32A(&nnz_cache[4+8* 5], top_empty);
2360  AV_WN32A(&nnz_cache[4+8*10], top_empty);
2361  }
2362  }
2363  h->cur_pic.mb_type[mb_xy] = mb_type;
2364 
2365  if( cbp || IS_INTRA16x16( mb_type ) ) {
2366  const uint8_t *scan, *scan8x8;
2367  const uint32_t *qmul;
2368 
2369  if(IS_INTERLACED(mb_type)){
2370  scan8x8 = sl->qscale ? h->field_scan8x8 : h->field_scan8x8_q0;
2371  scan = sl->qscale ? h->field_scan : h->field_scan_q0;
2372  }else{
2373  scan8x8 = sl->qscale ? h->zigzag_scan8x8 : h->zigzag_scan8x8_q0;
2374  scan = sl->qscale ? h->zigzag_scan : h->zigzag_scan_q0;
2375  }
2376 
2377  // decode_cabac_mb_dqp
2378  if(get_cabac_noinline( &sl->cabac, &sl->cabac_state[60 + (sl->last_qscale_diff != 0)])){
2379  int val = 1;
2380  int ctx= 2;
2381  const int max_qp = 51 + 6*(h->sps.bit_depth_luma-8);
2382 
2383  while( get_cabac_noinline( &sl->cabac, &sl->cabac_state[60 + ctx] ) ) {
2384  ctx= 3;
2385  val++;
2386  if(val > 2*max_qp){ //prevent infinite loop
2387  av_log(h->avctx, AV_LOG_ERROR, "cabac decode of qscale diff failed at %d %d\n", sl->mb_x, sl->mb_y);
2388  return -1;
2389  }
2390  }
2391 
2392  if( val&0x01 )
2393  val= (val + 1)>>1 ;
2394  else
2395  val= -((val + 1)>>1);
2396  sl->last_qscale_diff = val;
2397  sl->qscale += val;
2398  if (((unsigned)sl->qscale) > max_qp){
2399  if (sl->qscale < 0) sl->qscale += max_qp + 1;
2400  else sl->qscale -= max_qp + 1;
2401  }
2402  sl->chroma_qp[0] = get_chroma_qp(h, 0, sl->qscale);
2403  sl->chroma_qp[1] = get_chroma_qp(h, 1, sl->qscale);
2404  }else
2405  sl->last_qscale_diff=0;
2406 
2407  decode_cabac_luma_residual(h, sl, scan, scan8x8, pixel_shift, mb_type, cbp, 0);
2408  if (CHROMA444(h)) {
2409  decode_cabac_luma_residual(h, sl, scan, scan8x8, pixel_shift, mb_type, cbp, 1);
2410  decode_cabac_luma_residual(h, sl, scan, scan8x8, pixel_shift, mb_type, cbp, 2);
2411  } else if (CHROMA422(h)) {
2412  if( cbp&0x30 ){
2413  int c;
2414  for (c = 0; c < 2; c++)
2415  decode_cabac_residual_dc_422(h, sl, sl->mb + ((256 + 16*16*c) << pixel_shift), 3,
2416  CHROMA_DC_BLOCK_INDEX + c,
2417  chroma422_dc_scan, 8);
2418  }
2419 
2420  if( cbp&0x20 ) {
2421  int c, i, i8x8;
2422  for( c = 0; c < 2; c++ ) {
2423  int16_t *mb = sl->mb + (16*(16 + 16*c) << pixel_shift);
2424  qmul = h->dequant4_coeff[c+1+(IS_INTRA( mb_type ) ? 0:3)][sl->chroma_qp[c]];
2425  for (i8x8 = 0; i8x8 < 2; i8x8++) {
2426  for (i = 0; i < 4; i++) {
2427  const int index = 16 + 16 * c + 8*i8x8 + i;
2428  decode_cabac_residual_nondc(h, sl, mb, 4, index, scan + 1, qmul, 15);
2429  mb += 16<<pixel_shift;
2430  }
2431  }
2432  }
2433  } else {
2434  fill_rectangle(&sl->non_zero_count_cache[scan8[16]], 4, 4, 8, 0, 1);
2435  fill_rectangle(&sl->non_zero_count_cache[scan8[32]], 4, 4, 8, 0, 1);
2436  }
2437  } else /* yuv420 */ {
2438  if( cbp&0x30 ){
2439  int c;
2440  for (c = 0; c < 2; c++)
2441  decode_cabac_residual_dc(h, sl, sl->mb + ((256 + 16*16*c) << pixel_shift), 3, CHROMA_DC_BLOCK_INDEX+c, chroma_dc_scan, 4);
2442  }
2443 
2444  if( cbp&0x20 ) {
2445  int c, i;
2446  for( c = 0; c < 2; c++ ) {
2447  qmul = h->dequant4_coeff[c+1+(IS_INTRA( mb_type ) ? 0:3)][sl->chroma_qp[c]];
2448  for( i = 0; i < 4; i++ ) {
2449  const int index = 16 + 16 * c + i;
2450  decode_cabac_residual_nondc(h, sl, sl->mb + (16*index << pixel_shift), 4, index, scan + 1, qmul, 15);
2451  }
2452  }
2453  } else {
2454  fill_rectangle(&sl->non_zero_count_cache[scan8[16]], 4, 4, 8, 0, 1);
2455  fill_rectangle(&sl->non_zero_count_cache[scan8[32]], 4, 4, 8, 0, 1);
2456  }
2457  }
2458  } else {
2459  fill_rectangle(&sl->non_zero_count_cache[scan8[ 0]], 4, 4, 8, 0, 1);
2460  fill_rectangle(&sl->non_zero_count_cache[scan8[16]], 4, 4, 8, 0, 1);
2461  fill_rectangle(&sl->non_zero_count_cache[scan8[32]], 4, 4, 8, 0, 1);
2462  sl->last_qscale_diff = 0;
2463  }
2464 
2465  h->cur_pic.qscale_table[mb_xy] = sl->qscale;
2466  write_back_non_zero_count(h, sl);
2467 
2468  return 0;
2469 }
SPS::chroma_format_idc
int chroma_format_idc
Definition: h264.h:179
MB_TYPE_INTRA16x16
#define MB_TYPE_INTRA16x16
Definition: avcodec.h:1141
H264SliceContext::h264
struct H264Context * h264
Definition: h264.h:368
IMbInfo::pred_mode
uint8_t pred_mode
Definition: h264data.h:75
decode_cabac_mb_chroma_pre_mode
static int decode_cabac_mb_chroma_pre_mode(const H264Context *h, H264SliceContext *sl)
Definition: h264_cabac.c:1380
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#define ff_tlog(ctx,...)
Definition: internal.h:65
NULL
#define NULL
Definition: coverity.c:32
MB_TYPE_SKIP
#define MB_TYPE_SKIP
Definition: avcodec.h:1151
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const char const char void * val
Definition: avisynth_c.h:634
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int ff_h264_check_intra_pred_mode(const H264Context *h, H264SliceContext *sl, int mode, int is_chroma)
Check if the top & left blocks are available if needed and change the dc mode so it only uses the ava...
Definition: h264.c:187
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
DC_128_PRED8x8
#define DC_128_PRED8x8
Definition: h264pred.h:76
H264SliceContext::mb
int16_t mb[16 *48 *2]
Definition: h264.h:499
decode_cabac_residual_dc
static av_always_inline void decode_cabac_residual_dc(const H264Context *h, H264SliceContext *sl, int16_t *block, int cat, int n, const uint8_t *scantable, int max_coeff)
Definition: h264_cabac.c:1814
h
h
Definition: vp9dsp_template.c:2093
H264SliceContext::mv_cache
int16_t mv_cache[2][5 *8][2]
Motion vector cache.
Definition: h264.h:491
H264SliceContext::neighbor_transform_size
int neighbor_transform_size
number of neighbors (top and/or left) that used 8x8 dct
Definition: h264.h:447
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#define CHROMA444(h)
Definition: h264.h:100
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AVFormatContext * ctx
Definition: movenc-test.c:48
decode_cabac_residual_internal
static av_always_inline void decode_cabac_residual_internal(const H264Context *h, H264SliceContext *sl, int16_t *block, int cat, int n, const uint8_t *scantable, const uint32_t *qmul, int max_coeff, int is_dc, int chroma422)
Definition: h264_cabac.c:1584
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uint8_t field_scan8x8_q0[64]
Definition: h264.h:618
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static const uint8_t chroma422_dc_scan[8]
Definition: h264data.h:66
H264SliceContext::left_mb_xy
int left_mb_xy[LEFT_MBS]
Definition: h264.h:411
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const uint8_t * bytestream_end
Definition: cabac.h:49
H264Context::cbp_table
uint16_t * cbp_table
Definition: h264.h:601
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Definition: h264.h:493
CABAC_BITS
#define CABAC_BITS
Definition: cabac.h:40
H264SliceContext::prev_mb_skipped
int prev_mb_skipped
Definition: h264.h:399
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#define IS_SUB_8X8(a)
Definition: mpegutils.h:92
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static int av_unused get_cabac(CABACContext *c, uint8_t *const state)
Definition: cabac_functions.h:135
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static int decode_cabac_mb_intra4x4_pred_mode(H264SliceContext *sl, int pred_mode)
Definition: h264_cabac.c:1366
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Definition: h264.h:522
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static av_always_inline void write_back_motion(const H264Context *h, H264SliceContext *sl, int mb_type)
Definition: h264.h:1138
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static av_always_inline void write_back_non_zero_count(const H264Context *h, H264SliceContext *sl)
Definition: h264.h:1078
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#define DECODE_CABAC_MB_MVD(sl, list,n)
Definition: h264_cabac.c:1536
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#define AV_WN32A(p, v)
Definition: intreadwrite.h:538
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static const uint8_t *const ff_h264_last_coeff_flag_offset_8x8
Definition: cabac_functions.h:52
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unsigned int ref_count[2]
num_ref_idx_l0/1_active_minus1 + 1
Definition: h264.h:465
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Macro definitions for various function/variable attributes.
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static const PMbInfo b_sub_mb_type_info[13]
Definition: h264data.h:154
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Switching Intra.
Definition: avutil.h:270
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uint8_t * chroma_pred_mode_table
Definition: h264.h:604
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static int av_noinline av_unused get_cabac_noinline(CABACContext *c, uint8_t *const state)
Definition: cabac_functions.h:131
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Definition: h264_direct.c:706
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static av_always_inline uint16_t pack8to16(unsigned a, unsigned b)
Definition: h264.h:1030
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#define IS_8x8DCT(a)
Definition: h264.h:107
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const uint8_t * bytestream
Definition: cabac.h:48
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as a dct coefficient is int32_t in high depth, we need to reserve twice the space.
Definition: h264.h:496
MB_FIELD
#define MB_FIELD(sl)
Definition: h264.h:73
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uint32_t(*[6] dequant4_coeff)[16]
Definition: h264.h:588
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uint8_t bits
Definition: crc.c:295
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Definition: audio_convert.c:194
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Definition: vf_colormatrix.c:106
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assert() equivalent, that does lie in speed critical code.
Definition: avassert.h:63
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Definition: f_perms.c:27
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static int decode_cabac_intra_mb_type(H264SliceContext *sl, int ctx_base, int intra_slice)
Definition: h264_cabac.c:1297
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Definition: h264.h:373
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Definition: mpegutils.h:98
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Get the predicted intra4x4 prediction mode.
Definition: h264.h:1050
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static const IMbInfo i_mb_type_info[26]
Definition: h264data.h:79
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Definition: h264_cabac.c:1470
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Definition: h264_cabac.c:1442
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Definition: ffplay.c:805
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high precision timer, useful to profile code
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Definition: h264.h:378
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Definition: tableprint_vlc.h:28
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Definition: h264data.h:109
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H.264 / AVC / MPEG4 part10 codec.
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Definition: h264.h:372
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Definition: h264.h:655
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Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
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Definition: h264.h:1165
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static av_always_inline void write_back_intra_pred_mode(const H264Context *h, H264SliceContext *sl)
Definition: h264.h:1066
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#define CHROMA_DC_BLOCK_INDEX
Definition: h264.h:1002
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static av_always_inline int get_cabac_cbf_ctx(H264SliceContext *sl, int cat, int idx, int max_coeff, int is_dc)
Definition: h264_cabac.c:1551
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Definition: h264.h:405
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PPS pps
current pps
Definition: h264.h:582
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static av_always_inline void pred_16x8_motion(const H264Context *const h, H264SliceContext *sl, int n, int list, int ref, int *const mx, int *const my)
Get the directionally predicted 16x8 MV.
Definition: h264_mvpred.h:160
avassert.h
simple assert() macros that are a bit more flexible than ISO C assert().
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static int decode_cabac_mb_cbp_chroma(H264SliceContext *sl)
Definition: h264_cabac.c:1422
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Definition: mpegutils.h:83
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static av_always_inline uint32_t pack16to32(unsigned a, unsigned b)
Definition: h264.h:1021
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int slice_type_nos
S free slice type (SI/SP are remapped to I/P)
Definition: h264.h:374
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static av_noinline void decode_cabac_residual_nondc_internal(const H264Context *h, H264SliceContext *sl, int16_t *block, int cat, int n, const uint8_t *scantable, const uint32_t *qmul, int max_coeff)
Definition: h264_cabac.c:1791
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uint8_t zigzag_scan8x8[64]
Definition: h264.h:609
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static const uint8_t scan8[16 *3+3]
Definition: h264.h:1005
H264SliceContext::cabac_state
uint8_t cabac_state[1024]
Definition: h264.h:511
H264SliceContext::mb_luma_dc
int16_t mb_luma_dc[3][16 *2]
as mb is addressed by scantable[i] and scantable is uint8_t we can either check that i is not too lar...
Definition: h264.h:500
IS_INTRA_PCM
#define IS_INTRA_PCM(a)
Definition: mpegutils.h:84
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#define cat(a, bpp, b)
Definition: vp9dsp_init.h:29
AV_PICTURE_TYPE_I
Intra.
Definition: avutil.h:266
IS_16X8
#define IS_16X8(a)
Definition: mpegutils.h:89
H264SliceContext::chroma_pred_mode
int chroma_pred_mode
Definition: h264.h:402
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static av_always_inline void decode_cabac_luma_residual(const H264Context *h, H264SliceContext *sl, const uint8_t *scan, const uint8_t *scan8x8, int pixel_shift, int mb_type, int cbp, int p)
Definition: h264_cabac.c:1863
MB_TYPE_DIRECT2
#define MB_TYPE_DIRECT2
Definition: avcodec.h:1148
IS_SUB_4X8
#define IS_SUB_4X8(a)
Definition: mpegutils.h:94
H264Context::slice_table
uint16_t * slice_table
slice_table_base + 2*mb_stride + 1
Definition: h264.h:591
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static const int8_t cabac_context_init_PB[3][1024][2]
Definition: h264_cabac.c:364
IS_DIRECT
#define IS_DIRECT(a)
Definition: mpegutils.h:86
H264SliceContext::cabac
CABACContext cabac
Cabac.
Definition: h264.h:510
STORE_BLOCK
#define STORE_BLOCK(type)
FIELD_PICTURE
#define FIELD_PICTURE(h)
Definition: h264.h:75
pred_8x16_motion
static av_always_inline void pred_8x16_motion(const H264Context *const h, H264SliceContext *sl, int n, int list, int ref, int *const mx, int *const my)
Get the directionally predicted 8x16 MV.
Definition: h264_mvpred.h:201
MB_TYPE_INTERLACED
#define MB_TYPE_INTERLACED
Definition: avcodec.h:1147
decode_cabac_residual_dc_422
static av_always_inline void decode_cabac_residual_dc_422(const H264Context *h, H264SliceContext *sl, int16_t *block, int cat, int n, const uint8_t *scantable, int max_coeff)
Definition: h264_cabac.c:1830
H264Picture::mb_type
uint32_t * mb_type
Definition: h264.h:325
H264SliceContext::top_mb_xy
int top_mb_xy
Definition: h264.h:409
H264Context::sps
SPS sps
current sps
Definition: h264.h:581
H264SliceContext::next_mb_skipped
int next_mb_skipped
Definition: h264.h:400
int32_t
int32_t
Definition: audio_convert.c:194
ff_init_cabac_decoder
int ff_init_cabac_decoder(CABACContext *c, const uint8_t *buf, int buf_size)
Definition: cabac.c:178
cabac_functions.h
Context Adaptive Binary Arithmetic Coder inline functions.
SPS::direct_8x8_inference_flag
int direct_8x8_inference_flag
Definition: h264.h:194
n
int n
Definition: avisynth_c.h:547
decode_cabac_residual_dc_internal_422
static av_noinline void decode_cabac_residual_dc_internal_422(const H264Context *h, H264SliceContext *sl, int16_t *block, int cat, int n, const uint8_t *scantable, int max_coeff)
Definition: h264_cabac.c:1781
get_cabac_terminate
static int av_unused get_cabac_terminate(CABACContext *c)
Definition: cabac_functions.h:179
MB_MBAFF
#define MB_MBAFF(h)
Definition: h264.h:72
PART_NOT_AVAILABLE
#define PART_NOT_AVAILABLE
Definition: h264.h:567
IS_INTRA16x16
#define IS_INTRA16x16(a)
Definition: mpegutils.h:78
H264SliceContext::top_type
int top_type
Definition: h264.h:414
pred
static const float pred[4]
Definition: siprdata.h:259
h264_i386.h
H.264 / AVC / MPEG4 part10 codec.
H264Context::zigzag_scan_q0
uint8_t zigzag_scan_q0[16]
Definition: h264.h:614
H264SliceContext::intra16x16_pred_mode
int intra16x16_pred_mode
Definition: h264.h:403
H264Context::mb_stride
int mb_stride
Definition: h264.h:625
IS_INTERLACED
#define IS_INTERLACED(a)
Definition: mpegutils.h:85
H264Context::avctx
AVCodecContext * avctx
Definition: h264.h:524
H264Context::zigzag_scan8x8_q0
uint8_t zigzag_scan8x8_q0[64]
Definition: h264.h:615
IS_SUB_8X4
#define IS_SUB_8X4(a)
Definition: mpegutils.h:93
avcodec.h
Libavcodec external API header.
h264data.h
H264 / AVC / MPEG4 part10 codec data table
H264SliceContext::last_qscale_diff
int last_qscale_diff
Definition: h264.h:380
LTOP
#define LTOP
Definition: h264.h:77
ff_h264_decode_mb_cabac
int ff_h264_decode_mb_cabac(const H264Context *h, H264SliceContext *sl)
Decode a macroblock.
Definition: h264_cabac.c:1915
ff_h264_check_intra4x4_pred_mode
int ff_h264_check_intra4x4_pred_mode(const H264Context *h, H264SliceContext *sl)
Check if the top & left blocks are available if needed and change the dc mode so it only uses the ava...
Definition: h264.c:140
type
GLint GLenum type
Definition: opengl_enc.c:105
H264Picture::qscale_table
int8_t * qscale_table
Definition: h264.h:319
CABAC
#define CABAC(h)
Definition: h264_cabac.c:28
CABACContext::range
int range
Definition: cabac.h:45
IS_16X16
#define IS_16X16(a)
Definition: mpegutils.h:88
CHROMA422
#define CHROMA422(h)
Definition: h264.h:99
H264SliceContext::non_zero_count_cache
uint8_t non_zero_count_cache[15 *8]
non zero coeff count cache.
Definition: h264.h:486
index
int index
Definition: gxfenc.c:89
H264Context::dequant8_coeff
uint32_t(*[6] dequant8_coeff)[64]
Definition: h264.h:589
chroma_dc_scan
static const uint8_t chroma_dc_scan[4]
Definition: h264data.h:61
IS_8X16
#define IS_8X16(a)
Definition: mpegutils.h:90
H264Context::pixel_shift
int pixel_shift
0 for 8-bit H264, 1 for high-bit-depth H264
Definition: h264.h:539
decode_cabac_mb_skip
static int decode_cabac_mb_skip(const H264Context *h, H264SliceContext *sl, int mb_x, int mb_y)
Definition: h264_cabac.c:1329
MB_TYPE_16x16
#define MB_TYPE_16x16
Definition: avcodec.h:1143
H264SliceContext::mb_mbaff
int mb_mbaff
mb_aff_frame && mb_field_decoding_flag
Definition: h264.h:440
H264SliceContext::direct_cache
uint8_t direct_cache[5 *8]
Definition: h264.h:494
IS_INTER
#define IS_INTER(a)
Definition: mpegutils.h:81
fill_decode_caches
static void fill_decode_caches(const H264Context *h, H264SliceContext *sl, int mb_type)
Definition: h264_mvpred.h:445
b_mb_type_info
static const PMbInfo b_mb_type_info[23]
Definition: h264data.h:128
p_mb_type_info
static const PMbInfo p_mb_type_info[5]
Definition: h264data.h:113
p_sub_mb_type_info
static const PMbInfo p_sub_mb_type_info[4]
Definition: h264data.h:121
PPS::transform_8x8_mode
int transform_8x8_mode
transform_8x8_mode_flag
Definition: h264.h:255
H264Context::zigzag_scan
uint8_t zigzag_scan[16]
Definition: h264.h:608
H264SliceContext::list_count
unsigned int list_count
Definition: h264.h:466
INT_BIT
#define INT_BIT
Definition: h264_cabac.c:30
get_cabac_bypass_sign
static av_always_inline int get_cabac_bypass_sign(CABACContext *c, int val)
Definition: cabac_functions.h:158
get_cabac_bypass
static int av_unused get_cabac_bypass(CABACContext *c)
Definition: cabac_functions.h:140
AV_ZERO128
#define AV_ZERO128(d)
Definition: intreadwrite.h:622
H264SliceContext::left_type
int left_type[LEFT_MBS]
Definition: h264.h:416
CABACContext::low
int low
Definition: cabac.h:44
IMbInfo::cbp
uint8_t cbp
Definition: h264data.h:76
internal.h
common internal api header.
if
if(ret< 0)
Definition: vf_mcdeint.c:282
c
static double c[64]
Definition: vsrc_mptestsrc.c:87
decode_cabac_mb_cbp_luma
static int decode_cabac_mb_cbp_luma(H264SliceContext *sl)
Definition: h264_cabac.c:1405
h264_mvpred.h
H.264 / AVC / MPEG4 part10 motion vector predicion.
cabac_context_init_I
static const int8_t cabac_context_init_I[1024][2]
Definition: h264_cabac.c:52
AV_PICTURE_TYPE_B
Bi-dir predicted.
Definition: avutil.h:268
fill_decode_neighbors
static void fill_decode_neighbors(const H264Context *h, H264SliceContext *sl, int mb_type)
Definition: h264_mvpred.h:356
MB_TYPE_16x8
#define MB_TYPE_16x8
Definition: avcodec.h:1144
decode_cabac_b_mb_sub_type
static int decode_cabac_b_mb_sub_type(H264SliceContext *sl)
Definition: h264_cabac.c:1452
SPS::bit_depth_luma
int bit_depth_luma
bit_depth_luma_minus8 + 8
Definition: h264.h:228
get_chroma_qp
static av_always_inline int get_chroma_qp(const H264Context *h, int t, int qscale)
Get the chroma qp.
Definition: h264.h:1042
IS_INTRA
#define IS_INTRA(x, y)
IS_INTRA4x4
#define IS_INTRA4x4(a)
Definition: mpegutils.h:77
H264SliceContext::ref_cache
int8_t ref_cache[2][5 *8]
Definition: h264.h:492
FRAME_MBAFF
#define FRAME_MBAFF(h)
Definition: h264.h:74
ff_h264_mb_sizes
const uint16_t ff_h264_mb_sizes[4]
Definition: h264.c:57
H264Context::cur_pic
H264Picture cur_pic
Definition: h264.h:533
decode_mb_skip
static void av_unused decode_mb_skip(const H264Context *h, H264SliceContext *sl)
decodes a P_SKIP or B_SKIP macroblock
Definition: h264_mvpred.h:803
decode_cabac_mb_mvd
static int decode_cabac_mb_mvd(H264SliceContext *sl, int ctxbase, int amvd, int *mvda)
Definition: h264_cabac.c:1499
tab
static const struct twinvq_data tab
Definition: twinvq_data.h:11135
H264SliceContext::intra_pcm_ptr
const uint8_t * intra_pcm_ptr
Definition: h264.h:472
IMbInfo::type
uint16_t type
Definition: h264data.h:74
DECODE_SIGNIFICANCE
#define DECODE_SIGNIFICANCE(coefs, sig_off, last_off)
av_noinline
#define av_noinline
Definition: attributes.h:62
H264Context::field_scan8x8
uint8_t field_scan8x8[64]
Definition: h264.h:612
state
static struct @205 state
av_always_inline
#define av_always_inline
Definition: attributes.h:39
CC
#define CC
LEFT
#define LEFT
Definition: cdgraphics.c:168
decode_cabac_residual_dc_internal
static av_noinline void decode_cabac_residual_dc_internal(const H264Context *h, H264SliceContext *sl, int16_t *block, int cat, int n, const uint8_t *scantable, int max_coeff)
Definition: h264_cabac.c:1771
H264Context::field_scan_q0
uint8_t field_scan_q0[16]
Definition: h264.h:617
LIST_NOT_USED
#define LIST_NOT_USED
Definition: h264.h:566
H264SliceContext::mb_field_decoding_flag
int mb_field_decoding_flag
Definition: h264.h:439
H264Context::non_zero_count
uint8_t(* non_zero_count)[48]
Definition: h264.h:564
golomb.h
exp golomb vlc stuff
H264Context::field_scan
uint8_t field_scan[16]
Definition: h264.h:611
H264SliceContext::cabac_init_idc
int cabac_init_idc
Definition: h264.h:512
for
for(j=16;j >0;--j)
Definition: h264pred_template.c:469
AV_PICTURE_TYPE_P
Predicted.
Definition: avutil.h:267
MB_TYPE_8x8DCT
#define MB_TYPE_8x8DCT
Definition: h264.h:105
cabac.h
Context Adaptive Binary Arithmetic Coder.
H264SliceContext::left_cbp
int left_cbp
Definition: h264.h:455
ff_h264_init_cabac_states
void ff_h264_init_cabac_states(const H264Context *h, H264SliceContext *sl)
Definition: h264_cabac.c:1264
pred_motion
static av_always_inline void pred_motion(const H264Context *const h, H264SliceContext *sl, int n, int part_width, int list, int ref, int *const mx, int *const my)
Get the predicted MV.
Definition: h264_mvpred.h:95
decode_cabac_residual_nondc
static av_always_inline void decode_cabac_residual_nondc(const H264Context *h, H264SliceContext *sl, int16_t *block, int cat, int n, const uint8_t *scantable, const uint32_t *qmul, int max_coeff)
Definition: h264_cabac.c:1843
block
static int16_t block[64]
Definition: dct-test.c:112
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