h264_cabac.c 113 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
/*
 * H.26L/H.264/AVC/JVT/14496-10/... cabac decoding
 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

/**
23
 * @file
24 25 26 27
 * H.264 / AVC / MPEG4 part10 cabac decoding.
 * @author Michael Niedermayer <michaelni@gmx.at>
 */

28
#define CABAC(h) 1
29
#define UNCHECKED_BITSTREAM_READER 1
30

31
#include "libavutil/attributes.h"
32
#include "libavutil/avassert.h"
33
#include "libavutil/timer.h"
34 35 36
#include "config.h"
#include "cabac.h"
#include "cabac_functions.h"
37 38 39 40 41 42
#include "internal.h"
#include "avcodec.h"
#include "h264.h"
#include "h264data.h"
#include "h264_mvpred.h"
#include "golomb.h"
43
#include "mpegutils.h"
44 45 46 47 48 49 50

#if ARCH_X86
#include "x86/h264_i386.h"
#endif

/* Cabac pre state table */

51
static const int8_t cabac_context_init_I[1024][2] =
52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216
{
    /* 0 - 10 */
    { 20, -15 }, {  2, 54 },  {  3,  74 }, { 20, -15 },
    {  2,  54 }, {  3, 74 },  { -28,127 }, { -23, 104 },
    { -6,  53 }, { -1, 54 },  {  7,  51 },

    /* 11 - 23 unsused for I */
    { 0, 0 },    { 0, 0 },    { 0, 0 },      { 0, 0 },
    { 0, 0 },    { 0, 0 },    { 0, 0 },      { 0, 0 },
    { 0, 0 },    { 0, 0 },    { 0, 0 },      { 0, 0 },
    { 0, 0 },

    /* 24- 39 */
    { 0, 0 },    { 0, 0 },    { 0, 0 },      { 0, 0 },
    { 0, 0 },    { 0, 0 },    { 0, 0 },      { 0, 0 },
    { 0, 0 },    { 0, 0 },    { 0, 0 },      { 0, 0 },
    { 0, 0 },    { 0, 0 },    { 0, 0 },      { 0, 0 },

    /* 40 - 53 */
    { 0, 0 },    { 0, 0 },    { 0, 0 },      { 0, 0 },
    { 0, 0 },    { 0, 0 },    { 0, 0 },      { 0, 0 },
    { 0, 0 },    { 0, 0 },    { 0, 0 },      { 0, 0 },
    { 0, 0 },    { 0, 0 },

    /* 54 - 59 */
    { 0, 0 },    { 0, 0 },    { 0, 0 },      { 0, 0 },
    { 0, 0 },    { 0, 0 },

    /* 60 - 69 */
    { 0, 41 },   { 0, 63 },   { 0, 63 },     { 0, 63 },
    { -9, 83 },  { 4, 86 },   { 0, 97 },     { -7, 72 },
    { 13, 41 },  { 3, 62 },

    /* 70 -> 87 */
    { 0, 11 },   { 1, 55 },   { 0, 69 },     { -17, 127 },
    { -13, 102 },{ 0, 82 },   { -7, 74 },    { -21, 107 },
    { -27, 127 },{ -31, 127 },{ -24, 127 },  { -18, 95 },
    { -27, 127 },{ -21, 114 },{ -30, 127 },  { -17, 123 },
    { -12, 115 },{ -16, 122 },

    /* 88 -> 104 */
    { -11, 115 },{ -12, 63 }, { -2, 68 },    { -15, 84 },
    { -13, 104 },{ -3, 70 },  { -8, 93 },    { -10, 90 },
    { -30, 127 },{ -1, 74 },  { -6, 97 },    { -7, 91 },
    { -20, 127 },{ -4, 56 },  { -5, 82 },    { -7, 76 },
    { -22, 125 },

    /* 105 -> 135 */
    { -7, 93 },  { -11, 87 }, { -3, 77 },    { -5, 71 },
    { -4, 63 },  { -4, 68 },  { -12, 84 },   { -7, 62 },
    { -7, 65 },  { 8, 61 },   { 5, 56 },     { -2, 66 },
    { 1, 64 },   { 0, 61 },   { -2, 78 },    { 1, 50 },
    { 7, 52 },   { 10, 35 },  { 0, 44 },     { 11, 38 },
    { 1, 45 },   { 0, 46 },   { 5, 44 },     { 31, 17 },
    { 1, 51 },   { 7, 50 },   { 28, 19 },    { 16, 33 },
    { 14, 62 },  { -13, 108 },{ -15, 100 },

    /* 136 -> 165 */
    { -13, 101 },{ -13, 91 }, { -12, 94 },   { -10, 88 },
    { -16, 84 }, { -10, 86 }, { -7, 83 },    { -13, 87 },
    { -19, 94 }, { 1, 70 },   { 0, 72 },     { -5, 74 },
    { 18, 59 },  { -8, 102 }, { -15, 100 },  { 0, 95 },
    { -4, 75 },  { 2, 72 },   { -11, 75 },   { -3, 71 },
    { 15, 46 },  { -13, 69 }, { 0, 62 },     { 0, 65 },
    { 21, 37 },  { -15, 72 }, { 9, 57 },     { 16, 54 },
    { 0, 62 },   { 12, 72 },

    /* 166 -> 196 */
    { 24, 0 },   { 15, 9 },   { 8, 25 },     { 13, 18 },
    { 15, 9 },   { 13, 19 },  { 10, 37 },    { 12, 18 },
    { 6, 29 },   { 20, 33 },  { 15, 30 },    { 4, 45 },
    { 1, 58 },   { 0, 62 },   { 7, 61 },     { 12, 38 },
    { 11, 45 },  { 15, 39 },  { 11, 42 },    { 13, 44 },
    { 16, 45 },  { 12, 41 },  { 10, 49 },    { 30, 34 },
    { 18, 42 },  { 10, 55 },  { 17, 51 },    { 17, 46 },
    { 0, 89 },   { 26, -19 }, { 22, -17 },

    /* 197 -> 226 */
    { 26, -17 }, { 30, -25 }, { 28, -20 },   { 33, -23 },
    { 37, -27 }, { 33, -23 }, { 40, -28 },   { 38, -17 },
    { 33, -11 }, { 40, -15 }, { 41, -6 },    { 38, 1 },
    { 41, 17 },  { 30, -6 },  { 27, 3 },     { 26, 22 },
    { 37, -16 }, { 35, -4 },  { 38, -8 },    { 38, -3 },
    { 37, 3 },   { 38, 5 },   { 42, 0 },     { 35, 16 },
    { 39, 22 },  { 14, 48 },  { 27, 37 },    { 21, 60 },
    { 12, 68 },  { 2, 97 },

    /* 227 -> 251 */
    { -3, 71 },  { -6, 42 },  { -5, 50 },    { -3, 54 },
    { -2, 62 },  { 0, 58 },   { 1, 63 },     { -2, 72 },
    { -1, 74 },  { -9, 91 },  { -5, 67 },    { -5, 27 },
    { -3, 39 },  { -2, 44 },  { 0, 46 },     { -16, 64 },
    { -8, 68 },  { -10, 78 }, { -6, 77 },    { -10, 86 },
    { -12, 92 }, { -15, 55 }, { -10, 60 },   { -6, 62 },
    { -4, 65 },

    /* 252 -> 275 */
    { -12, 73 }, { -8, 76 },  { -7, 80 },    { -9, 88 },
    { -17, 110 },{ -11, 97 }, { -20, 84 },   { -11, 79 },
    { -6, 73 },  { -4, 74 },  { -13, 86 },   { -13, 96 },
    { -11, 97 }, { -19, 117 },{ -8, 78 },    { -5, 33 },
    { -4, 48 },  { -2, 53 },  { -3, 62 },    { -13, 71 },
    { -10, 79 }, { -12, 86 }, { -13, 90 },   { -14, 97 },

    /* 276 a bit special (not used, bypass is used instead) */
    { 0, 0 },

    /* 277 -> 307 */
    { -6, 93 },  { -6, 84 },  { -8, 79 },    { 0, 66 },
    { -1, 71 },  { 0, 62 },   { -2, 60 },    { -2, 59 },
    { -5, 75 },  { -3, 62 },  { -4, 58 },    { -9, 66 },
    { -1, 79 },  { 0, 71 },   { 3, 68 },     { 10, 44 },
    { -7, 62 },  { 15, 36 },  { 14, 40 },    { 16, 27 },
    { 12, 29 },  { 1, 44 },   { 20, 36 },    { 18, 32 },
    { 5, 42 },   { 1, 48 },   { 10, 62 },    { 17, 46 },
    { 9, 64 },   { -12, 104 },{ -11, 97 },

    /* 308 -> 337 */
    { -16, 96 }, { -7, 88 },  { -8, 85 },    { -7, 85 },
    { -9, 85 },  { -13, 88 }, { 4, 66 },     { -3, 77 },
    { -3, 76 },  { -6, 76 },  { 10, 58 },    { -1, 76 },
    { -1, 83 },  { -7, 99 },  { -14, 95 },   { 2, 95 },
    { 0, 76 },   { -5, 74 },  { 0, 70 },     { -11, 75 },
    { 1, 68 },   { 0, 65 },   { -14, 73 },   { 3, 62 },
    { 4, 62 },   { -1, 68 },  { -13, 75 },   { 11, 55 },
    { 5, 64 },   { 12, 70 },

    /* 338 -> 368 */
    { 15, 6 },   { 6, 19 },   { 7, 16 },     { 12, 14 },
    { 18, 13 },  { 13, 11 },  { 13, 15 },    { 15, 16 },
    { 12, 23 },  { 13, 23 },  { 15, 20 },    { 14, 26 },
    { 14, 44 },  { 17, 40 },  { 17, 47 },    { 24, 17 },
    { 21, 21 },  { 25, 22 },  { 31, 27 },    { 22, 29 },
    { 19, 35 },  { 14, 50 },  { 10, 57 },    { 7, 63 },
    { -2, 77 },  { -4, 82 },  { -3, 94 },    { 9, 69 },
    { -12, 109 },{ 36, -35 }, { 36, -34 },

    /* 369 -> 398 */
    { 32, -26 }, { 37, -30 }, { 44, -32 },   { 34, -18 },
    { 34, -15 }, { 40, -15 }, { 33, -7 },    { 35, -5 },
    { 33, 0 },   { 38, 2 },   { 33, 13 },    { 23, 35 },
    { 13, 58 },  { 29, -3 },  { 26, 0 },     { 22, 30 },
    { 31, -7 },  { 35, -15 }, { 34, -3 },    { 34, 3 },
    { 36, -1 },  { 34, 5 },   { 32, 11 },    { 35, 5 },
    { 34, 12 },  { 39, 11 },  { 30, 29 },    { 34, 26 },
    { 29, 39 },  { 19, 66 },

    /* 399 -> 435 */
    {  31,  21 }, {  31,  31 }, {  25,  50 },
    { -17, 120 }, { -20, 112 }, { -18, 114 }, { -11,  85 },
    { -15,  92 }, { -14,  89 }, { -26,  71 }, { -15,  81 },
    { -14,  80 }, {   0,  68 }, { -14,  70 }, { -24,  56 },
    { -23,  68 }, { -24,  50 }, { -11,  74 }, {  23, -13 },
    {  26, -13 }, {  40, -15 }, {  49, -14 }, {  44,   3 },
    {  45,   6 }, {  44,  34 }, {  33,  54 }, {  19,  82 },
    {  -3,  75 }, {  -1,  23 }, {   1,  34 }, {   1,  43 },
    {   0,  54 }, {  -2,  55 }, {   0,  61 }, {   1,  64 },
    {   0,  68 }, {  -9,  92 },

    /* 436 -> 459 */
    { -14, 106 }, { -13,  97 }, { -15,  90 }, { -12,  90 },
    { -18,  88 }, { -10,  73 }, {  -9,  79 }, { -14,  86 },
    { -10,  73 }, { -10,  70 }, { -10,  69 }, {  -5,  66 },
    {  -9,  64 }, {  -5,  58 }, {   2,  59 }, {  21, -10 },
    {  24, -11 }, {  28,  -8 }, {  28,  -1 }, {  29,   3 },
217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360
    {  29,   9 }, {  35,  20 }, {  29,  36 }, {  14,  67 },

    /* 460 -> 1024 */
    { -17, 123 }, { -12, 115 }, { -16, 122 }, { -11, 115 },
    { -12,  63 }, {  -2,  68 }, { -15,  84 }, { -13, 104 },
    {  -3,  70 }, {  -8,  93 }, { -10,  90 }, { -30, 127 },
    { -17, 123 }, { -12, 115 }, { -16, 122 }, { -11, 115 },
    { -12,  63 }, {  -2,  68 }, { -15,  84 }, { -13, 104 },
    {  -3,  70 }, {  -8,  93 }, { -10,  90 }, { -30, 127 },
    {  -7,  93 }, { -11,  87 }, {  -3,  77 }, {  -5,  71 },
    {  -4,  63 }, {  -4,  68 }, { -12,  84 }, {  -7,  62 },
    {  -7,  65 }, {   8,  61 }, {   5,  56 }, {  -2,  66 },
    {   1,  64 }, {   0,  61 }, {  -2,  78 }, {   1,  50 },
    {   7,  52 }, {  10,  35 }, {   0,  44 }, {  11,  38 },
    {   1,  45 }, {   0,  46 }, {   5,  44 }, {  31,  17 },
    {   1,  51 }, {   7,  50 }, {  28,  19 }, {  16,  33 },
    {  14,  62 }, { -13, 108 }, { -15, 100 }, { -13, 101 },
    { -13,  91 }, { -12,  94 }, { -10,  88 }, { -16,  84 },
    { -10,  86 }, {  -7,  83 }, { -13,  87 }, { -19,  94 },
    {   1,  70 }, {   0,  72 }, {  -5,  74 }, {  18,  59 },
    {  -7,  93 }, { -11,  87 }, {  -3,  77 }, {  -5,  71 },
    {  -4,  63 }, {  -4,  68 }, { -12,  84 }, {  -7,  62 },
    {  -7,  65 }, {   8,  61 }, {   5,  56 }, {  -2,  66 },
    {   1,  64 }, {   0,  61 }, {  -2,  78 }, {   1,  50 },
    {   7,  52 }, {  10,  35 }, {   0,  44 }, {  11,  38 },
    {   1,  45 }, {   0,  46 }, {   5,  44 }, {  31,  17 },
    {   1,  51 }, {   7,  50 }, {  28,  19 }, {  16,  33 },
    {  14,  62 }, { -13, 108 }, { -15, 100 }, { -13, 101 },
    { -13,  91 }, { -12,  94 }, { -10,  88 }, { -16,  84 },
    { -10,  86 }, {  -7,  83 }, { -13,  87 }, { -19,  94 },
    {   1,  70 }, {   0,  72 }, {  -5,  74 }, {  18,  59 },
    {  24,   0 }, {  15,   9 }, {   8,  25 }, {  13,  18 },
    {  15,   9 }, {  13,  19 }, {  10,  37 }, {  12,  18 },
    {   6,  29 }, {  20,  33 }, {  15,  30 }, {   4,  45 },
    {   1,  58 }, {   0,  62 }, {   7,  61 }, {  12,  38 },
    {  11,  45 }, {  15,  39 }, {  11,  42 }, {  13,  44 },
    {  16,  45 }, {  12,  41 }, {  10,  49 }, {  30,  34 },
    {  18,  42 }, {  10,  55 }, {  17,  51 }, {  17,  46 },
    {   0,  89 }, {  26, -19 }, {  22, -17 }, {  26, -17 },
    {  30, -25 }, {  28, -20 }, {  33, -23 }, {  37, -27 },
    {  33, -23 }, {  40, -28 }, {  38, -17 }, {  33, -11 },
    {  40, -15 }, {  41,  -6 }, {  38,   1 }, {  41,  17 },
    {  24,   0 }, {  15,   9 }, {   8,  25 }, {  13,  18 },
    {  15,   9 }, {  13,  19 }, {  10,  37 }, {  12,  18 },
    {   6,  29 }, {  20,  33 }, {  15,  30 }, {   4,  45 },
    {   1,  58 }, {   0,  62 }, {   7,  61 }, {  12,  38 },
    {  11,  45 }, {  15,  39 }, {  11,  42 }, {  13,  44 },
    {  16,  45 }, {  12,  41 }, {  10,  49 }, {  30,  34 },
    {  18,  42 }, {  10,  55 }, {  17,  51 }, {  17,  46 },
    {   0,  89 }, {  26, -19 }, {  22, -17 }, {  26, -17 },
    {  30, -25 }, {  28, -20 }, {  33, -23 }, {  37, -27 },
    {  33, -23 }, {  40, -28 }, {  38, -17 }, {  33, -11 },
    {  40, -15 }, {  41,  -6 }, {  38,   1 }, {  41,  17 },
    { -17, 120 }, { -20, 112 }, { -18, 114 }, { -11,  85 },
    { -15,  92 }, { -14,  89 }, { -26,  71 }, { -15,  81 },
    { -14,  80 }, {   0,  68 }, { -14,  70 }, { -24,  56 },
    { -23,  68 }, { -24,  50 }, { -11,  74 }, { -14, 106 },
    { -13,  97 }, { -15,  90 }, { -12,  90 }, { -18,  88 },
    { -10,  73 }, {  -9,  79 }, { -14,  86 }, { -10,  73 },
    { -10,  70 }, { -10,  69 }, {  -5,  66 }, {  -9,  64 },
    {  -5,  58 }, {   2,  59 }, {  23, -13 }, {  26, -13 },
    {  40, -15 }, {  49, -14 }, {  44,   3 }, {  45,   6 },
    {  44,  34 }, {  33,  54 }, {  19,  82 }, {  21, -10 },
    {  24, -11 }, {  28,  -8 }, {  28,  -1 }, {  29,   3 },
    {  29,   9 }, {  35,  20 }, {  29,  36 }, {  14,  67 },
    {  -3,  75 }, {  -1,  23 }, {   1,  34 }, {   1,  43 },
    {   0,  54 }, {  -2,  55 }, {   0,  61 }, {   1,  64 },
    {   0,  68 }, {  -9,  92 }, { -17, 120 }, { -20, 112 },
    { -18, 114 }, { -11,  85 }, { -15,  92 }, { -14,  89 },
    { -26,  71 }, { -15,  81 }, { -14,  80 }, {   0,  68 },
    { -14,  70 }, { -24,  56 }, { -23,  68 }, { -24,  50 },
    { -11,  74 }, { -14, 106 }, { -13,  97 }, { -15,  90 },
    { -12,  90 }, { -18,  88 }, { -10,  73 }, {  -9,  79 },
    { -14,  86 }, { -10,  73 }, { -10,  70 }, { -10,  69 },
    {  -5,  66 }, {  -9,  64 }, {  -5,  58 }, {   2,  59 },
    {  23, -13 }, {  26, -13 }, {  40, -15 }, {  49, -14 },
    {  44,   3 }, {  45,   6 }, {  44,  34 }, {  33,  54 },
    {  19,  82 }, {  21, -10 }, {  24, -11 }, {  28,  -8 },
    {  28,  -1 }, {  29,   3 }, {  29,   9 }, {  35,  20 },
    {  29,  36 }, {  14,  67 }, {  -3,  75 }, {  -1,  23 },
    {   1,  34 }, {   1,  43 }, {   0,  54 }, {  -2,  55 },
    {   0,  61 }, {   1,  64 }, {   0,  68 }, {  -9,  92 },
    {  -6,  93 }, {  -6,  84 }, {  -8,  79 }, {   0,  66 },
    {  -1,  71 }, {   0,  62 }, {  -2,  60 }, {  -2,  59 },
    {  -5,  75 }, {  -3,  62 }, {  -4,  58 }, {  -9,  66 },
    {  -1,  79 }, {   0,  71 }, {   3,  68 }, {  10,  44 },
    {  -7,  62 }, {  15,  36 }, {  14,  40 }, {  16,  27 },
    {  12,  29 }, {   1,  44 }, {  20,  36 }, {  18,  32 },
    {   5,  42 }, {   1,  48 }, {  10,  62 }, {  17,  46 },
    {   9,  64 }, { -12, 104 }, { -11,  97 }, { -16,  96 },
    {  -7,  88 }, {  -8,  85 }, {  -7,  85 }, {  -9,  85 },
    { -13,  88 }, {   4,  66 }, {  -3,  77 }, {  -3,  76 },
    {  -6,  76 }, {  10,  58 }, {  -1,  76 }, {  -1,  83 },
    {  -6,  93 }, {  -6,  84 }, {  -8,  79 }, {   0,  66 },
    {  -1,  71 }, {   0,  62 }, {  -2,  60 }, {  -2,  59 },
    {  -5,  75 }, {  -3,  62 }, {  -4,  58 }, {  -9,  66 },
    {  -1,  79 }, {   0,  71 }, {   3,  68 }, {  10,  44 },
    {  -7,  62 }, {  15,  36 }, {  14,  40 }, {  16,  27 },
    {  12,  29 }, {   1,  44 }, {  20,  36 }, {  18,  32 },
    {   5,  42 }, {   1,  48 }, {  10,  62 }, {  17,  46 },
    {   9,  64 }, { -12, 104 }, { -11,  97 }, { -16,  96 },
    {  -7,  88 }, {  -8,  85 }, {  -7,  85 }, {  -9,  85 },
    { -13,  88 }, {   4,  66 }, {  -3,  77 }, {  -3,  76 },
    {  -6,  76 }, {  10,  58 }, {  -1,  76 }, {  -1,  83 },
    {  15,   6 }, {   6,  19 }, {   7,  16 }, {  12,  14 },
    {  18,  13 }, {  13,  11 }, {  13,  15 }, {  15,  16 },
    {  12,  23 }, {  13,  23 }, {  15,  20 }, {  14,  26 },
    {  14,  44 }, {  17,  40 }, {  17,  47 }, {  24,  17 },
    {  21,  21 }, {  25,  22 }, {  31,  27 }, {  22,  29 },
    {  19,  35 }, {  14,  50 }, {  10,  57 }, {   7,  63 },
    {  -2,  77 }, {  -4,  82 }, {  -3,  94 }, {   9,  69 },
    { -12, 109 }, {  36, -35 }, {  36, -34 }, {  32, -26 },
    {  37, -30 }, {  44, -32 }, {  34, -18 }, {  34, -15 },
    {  40, -15 }, {  33,  -7 }, {  35,  -5 }, {  33,   0 },
    {  38,   2 }, {  33,  13 }, {  23,  35 }, {  13,  58 },
    {  15,   6 }, {   6,  19 }, {   7,  16 }, {  12,  14 },
    {  18,  13 }, {  13,  11 }, {  13,  15 }, {  15,  16 },
    {  12,  23 }, {  13,  23 }, {  15,  20 }, {  14,  26 },
    {  14,  44 }, {  17,  40 }, {  17,  47 }, {  24,  17 },
    {  21,  21 }, {  25,  22 }, {  31,  27 }, {  22,  29 },
    {  19,  35 }, {  14,  50 }, {  10,  57 }, {   7,  63 },
    {  -2,  77 }, {  -4,  82 }, {  -3,  94 }, {   9,  69 },
    { -12, 109 }, {  36, -35 }, {  36, -34 }, {  32, -26 },
    {  37, -30 }, {  44, -32 }, {  34, -18 }, {  34, -15 },
    {  40, -15 }, {  33,  -7 }, {  35,  -5 }, {  33,   0 },
    {  38,   2 }, {  33,  13 }, {  23,  35 }, {  13,  58 },
    {  -3,  71 }, {  -6,  42 }, {  -5,  50 }, {  -3,  54 },
    {  -2,  62 }, {   0,  58 }, {   1,  63 }, {  -2,  72 },
    {  -1,  74 }, {  -9,  91 }, {  -5,  67 }, {  -5,  27 },
    {  -3,  39 }, {  -2,  44 }, {   0,  46 }, { -16,  64 },
    {  -8,  68 }, { -10,  78 }, {  -6,  77 }, { -10,  86 },
    { -12,  92 }, { -15,  55 }, { -10,  60 }, {  -6,  62 },
    {  -4,  65 }, { -12,  73 }, {  -8,  76 }, {  -7,  80 },
    {  -9,  88 }, { -17, 110 }, {  -3,  71 }, {  -6,  42 },
    {  -5,  50 }, {  -3,  54 }, {  -2,  62 }, {   0,  58 },
    {   1,  63 }, {  -2,  72 }, {  -1,  74 }, {  -9,  91 },
    {  -5,  67 }, {  -5,  27 }, {  -3,  39 }, {  -2,  44 },
    {   0,  46 }, { -16,  64 }, {  -8,  68 }, { -10,  78 },
    {  -6,  77 }, { -10,  86 }, { -12,  92 }, { -15,  55 },
    { -10,  60 }, {  -6,  62 }, {  -4,  65 }, { -12,  73 },
    {  -8,  76 }, {  -7,  80 }, {  -9,  88 }, { -17, 110 },
    {  -3,  70 }, {  -8,  93 }, { -10,  90 }, { -30, 127 },
    {  -3,  70 }, {  -8,  93 }, { -10,  90 }, { -30, 127 },
    {  -3,  70 }, {  -8,  93 }, { -10,  90 }, { -30, 127 }
361 362
};

363
static const int8_t cabac_context_init_PB[3][1024][2] =
364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518
{
    /* i_cabac_init_idc == 0 */
    {
        /* 0 - 10 */
        {  20, -15 }, {   2,  54 }, {   3,  74 }, {  20, -15 },
        {   2,  54 }, {   3,  74 }, { -28, 127 }, { -23, 104 },
        {  -6,  53 }, {  -1,  54 }, {   7,  51 },

        /* 11 - 23 */
        {  23,  33 }, {  23,   2 }, {  21,   0 }, {   1,   9 },
        {   0,  49 }, { -37, 118 }, {   5,  57 }, { -13,  78 },
        { -11,  65 }, {   1,  62 }, {  12,  49 }, {  -4,  73 },
        {  17,  50 },

        /* 24 - 39 */
        {  18,  64 }, {   9,  43 }, {  29,   0 }, {  26,  67 },
        {  16,  90 }, {   9, 104 }, { -46, 127 }, { -20, 104 },
        {   1,  67 }, { -13,  78 }, { -11,  65 }, {   1,  62 },
        {  -6,  86 }, { -17,  95 }, {  -6,  61 }, {   9,  45 },

        /* 40 - 53 */
        {  -3,  69 }, {  -6,  81 }, { -11,  96 }, {   6,  55 },
        {   7,  67 }, {  -5,  86 }, {   2,  88 }, {   0,  58 },
        {  -3,  76 }, { -10,  94 }, {   5,  54 }, {   4,  69 },
        {  -3,  81 }, {   0,  88 },

        /* 54 - 59 */
        {  -7,  67 }, {  -5,  74 }, {  -4,  74 }, {  -5,  80 },
        {  -7,  72 }, {   1,  58 },

        /* 60 - 69 */
        {   0,  41 }, {   0,  63 }, {   0,  63 }, { 0, 63 },
        {  -9,  83 }, {   4,  86 }, {   0,  97 }, { -7, 72 },
        {  13,  41 }, {   3,  62 },

        /* 70 - 87 */
        {   0,  45 }, {  -4,  78 }, {  -3,  96 }, { -27,  126 },
        { -28,  98 }, { -25, 101 }, { -23,  67 }, { -28,  82 },
        { -20,  94 }, { -16,  83 }, { -22, 110 }, { -21,  91 },
        { -18, 102 }, { -13,  93 }, { -29, 127 }, {  -7,  92 },
        {  -5,  89 }, {  -7,  96 }, { -13, 108 }, {  -3,  46 },
        {  -1,  65 }, {  -1,  57 }, {  -9,  93 }, {  -3,  74 },
        {  -9,  92 }, {  -8,  87 }, { -23, 126 }, {   5,  54 },
        {   6,  60 }, {   6,  59 }, {   6,  69 }, {  -1,  48 },
        {   0,  68 }, {  -4,  69 }, {  -8,  88 },

        /* 105 -> 165 */
        {  -2,  85 }, {  -6,  78 }, {  -1,  75 }, {  -7,  77 },
        {   2,  54 }, {   5,  50 }, {  -3,  68 }, {   1,  50 },
        {   6,  42 }, {  -4,  81 }, {   1,  63 }, {  -4,  70 },
        {   0,  67 }, {   2,  57 }, {  -2,  76 }, {  11,  35 },
        {   4,  64 }, {   1,  61 }, {  11,  35 }, {  18,  25 },
        {  12,  24 }, {  13,  29 }, {  13,  36 }, { -10,  93 },
        {  -7,  73 }, {  -2,  73 }, {  13,  46 }, {   9,  49 },
        {  -7, 100 }, {   9,  53 }, {   2,  53 }, {   5,  53 },
        {  -2,  61 }, {   0,  56 }, {   0,  56 }, { -13,  63 },
        {  -5,  60 }, {  -1,  62 }, {   4,  57 }, {  -6,  69 },
        {   4,  57 }, {  14,  39 }, {   4,  51 }, {  13,  68 },
        {   3,  64 }, {   1,  61 }, {   9,  63 }, {   7,  50 },
        {  16,  39 }, {   5,  44 }, {   4,  52 }, {  11,  48 },
        {  -5,  60 }, {  -1,  59 }, {   0,  59 }, {  22,  33 },
        {   5,  44 }, {  14,  43 }, {  -1,  78 }, {   0,  60 },
        {   9,  69 },

        /* 166 - 226 */
        {  11,  28 }, {   2,  40 }, {   3,  44 }, {   0,  49 },
        {   0,  46 }, {   2,  44 }, {   2,  51 }, {   0,  47 },
        {   4,  39 }, {   2,  62 }, {   6,  46 }, {   0,  54 },
        {   3,  54 }, {   2,  58 }, {   4,  63 }, {   6,  51 },
        {   6,  57 }, {   7,  53 }, {   6,  52 }, {   6,  55 },
        {  11,  45 }, {  14,  36 }, {   8,  53 }, {  -1,  82 },
        {   7,  55 }, {  -3,  78 }, {  15,  46 }, {  22,  31 },
        {  -1,  84 }, {  25,   7 }, {  30,  -7 }, {  28,   3 },
        {  28,   4 }, {  32,   0 }, {  34,  -1 }, {  30,   6 },
        {  30,   6 }, {  32,   9 }, {  31,  19 }, {  26,  27 },
        {  26,  30 }, {  37,  20 }, {  28,  34 }, {  17,  70 },
        {   1,  67 }, {   5,  59 }, {   9,  67 }, {  16,  30 },
        {  18,  32 }, {  18,  35 }, {  22,  29 }, {  24,  31 },
        {  23,  38 }, {  18,  43 }, {  20,  41 }, {  11,  63 },
        {   9,  59 }, {   9,  64 }, {  -1,  94 }, {  -2,  89 },
        {  -9, 108 },

        /* 227 - 275 */
        {  -6,  76 }, {  -2,  44 }, {   0,  45 }, {   0,  52 },
        {  -3,  64 }, {  -2,  59 }, {  -4,  70 }, {  -4,  75 },
        {  -8,  82 }, { -17, 102 }, {  -9,  77 }, {   3,  24 },
        {   0,  42 }, {   0,  48 }, {   0,  55 }, {  -6,  59 },
        {  -7,  71 }, { -12,  83 }, { -11,  87 }, { -30, 119 },
        {   1,  58 }, {  -3,  29 }, {  -1,  36 }, {   1,  38 },
        {   2,  43 }, {  -6,  55 }, {   0,  58 }, {   0,  64 },
        {  -3,  74 }, { -10,  90 }, {   0,  70 }, {  -4,  29 },
        {   5,  31 }, {   7,  42 }, {   1,  59 }, {  -2,  58 },
        {  -3,  72 }, {  -3,  81 }, { -11,  97 }, {   0,  58 },
        {   8,   5 }, {  10,  14 }, {  14,  18 }, {  13,  27 },
        {   2,  40 }, {   0,  58 }, {  -3,  70 }, {  -6,  79 },
        {  -8,  85 },

        /* 276 a bit special (not used, bypass is used instead) */
        { 0, 0 },

        /* 277 - 337 */
        { -13, 106 }, { -16, 106 }, { -10,  87 }, { -21, 114 },
        { -18, 110 }, { -14,  98 }, { -22, 110 }, { -21, 106 },
        { -18, 103 }, { -21, 107 }, { -23, 108 }, { -26, 112 },
        { -10,  96 }, { -12,  95 }, {  -5,  91 }, {  -9,  93 },
        { -22,  94 }, {  -5,  86 }, {   9,  67 }, {  -4,  80 },
        { -10,  85 }, {  -1,  70 }, {   7,  60 }, {   9,  58 },
        {   5,  61 }, {  12,  50 }, {  15,  50 }, {  18,  49 },
        {  17,  54 }, {  10,  41 }, {   7,  46 }, {  -1,  51 },
        {   7,  49 }, {   8,  52 }, {   9,  41 }, {   6,  47 },
        {   2,  55 }, {  13,  41 }, {  10,  44 }, {   6,  50 },
        {   5,  53 }, {  13,  49 }, {   4,  63 }, {   6,  64 },
        {  -2,  69 }, {  -2,  59 }, {   6,  70 }, {  10,  44 },
        {   9,  31 }, {  12,  43 }, {   3,  53 }, {  14,  34 },
        {  10,  38 }, {  -3,  52 }, {  13,  40 }, {  17,  32 },
        {   7,  44 }, {   7,  38 }, {  13,  50 }, {  10,  57 },
        {  26,  43 },

        /* 338 - 398 */
        {  14,  11 }, {  11,  14 }, {   9,  11 }, {  18,  11 },
        {  21,   9 }, {  23,  -2 }, {  32, -15 }, {  32, -15 },
        {  34, -21 }, {  39, -23 }, {  42, -33 }, {  41, -31 },
        {  46, -28 }, {  38, -12 }, {  21,  29 }, {  45, -24 },
        {  53, -45 }, {  48, -26 }, {  65, -43 }, {  43, -19 },
        {  39, -10 }, {  30,   9 }, {  18,  26 }, {  20,  27 },
        {   0,  57 }, { -14,  82 }, {  -5,  75 }, { -19,  97 },
        { -35, 125 }, {  27,   0 }, {  28,   0 }, {  31,  -4 },
        {  27,   6 }, {  34,   8 }, {  30,  10 }, {  24,  22 },
        {  33,  19 }, {  22,  32 }, {  26,  31 }, {  21,  41 },
        {  26,  44 }, {  23,  47 }, {  16,  65 }, {  14,  71 },
        {   8,  60 }, {   6,  63 }, {  17,  65 }, {  21,  24 },
        {  23,  20 }, {  26,  23 }, {  27,  32 }, {  28,  23 },
        {  28,  24 }, {  23,  40 }, {  24,  32 }, {  28,  29 },
        {  23,  42 }, {  19,  57 }, {  22,  53 }, {  22,  61 },
        {  11,  86 },

        /* 399 - 435 */
        {  12,  40 }, {  11,  51 }, {  14,  59 },
        {  -4,  79 }, {  -7,  71 }, {  -5,  69 }, {  -9,  70 },
        {  -8,  66 }, { -10,  68 }, { -19,  73 }, { -12,  69 },
        { -16,  70 }, { -15,  67 }, { -20,  62 }, { -19,  70 },
        { -16,  66 }, { -22,  65 }, { -20,  63 }, {   9,  -2 },
        {  26,  -9 }, {  33,  -9 }, {  39,  -7 }, {  41,  -2 },
        {  45,   3 }, {  49,   9 }, {  45,  27 }, {  36,  59 },
        {  -6,  66 }, {  -7,  35 }, {  -7,  42 }, {  -8,  45 },
        {  -5,  48 }, { -12,  56 }, {  -6,  60 }, {  -5,  62 },
        {  -8,  66 }, {  -8,  76 },

        /* 436 - 459 */
        {  -5,  85 }, {  -6,  81 }, { -10,  77 }, {  -7,  81 },
        { -17,  80 }, { -18,  73 }, {  -4,  74 }, { -10,  83 },
        {  -9,  71 }, {  -9,  67 }, {  -1,  61 }, {  -8,  66 },
        { -14,  66 }, {   0,  59 }, {   2,  59 }, {  21, -13 },
        {  33, -14 }, {  39,  -7 }, {  46,  -2 }, {  51,   2 },
        {  60,   6 }, {  61,  17 }, {  55,  34 }, {  42,  62 },
519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661

        /* 460 - 1024 */
        {  -7,  92 }, {  -5,  89 }, {  -7,  96 }, { -13, 108 },
        {  -3,  46 }, {  -1,  65 }, {  -1,  57 }, {  -9,  93 },
        {  -3,  74 }, {  -9,  92 }, {  -8,  87 }, { -23, 126 },
        {  -7,  92 }, {  -5,  89 }, {  -7,  96 }, { -13, 108 },
        {  -3,  46 }, {  -1,  65 }, {  -1,  57 }, {  -9,  93 },
        {  -3,  74 }, {  -9,  92 }, {  -8,  87 }, { -23, 126 },
        {  -2,  85 }, {  -6,  78 }, {  -1,  75 }, {  -7,  77 },
        {   2,  54 }, {   5,  50 }, {  -3,  68 }, {   1,  50 },
        {   6,  42 }, {  -4,  81 }, {   1,  63 }, {  -4,  70 },
        {   0,  67 }, {   2,  57 }, {  -2,  76 }, {  11,  35 },
        {   4,  64 }, {   1,  61 }, {  11,  35 }, {  18,  25 },
        {  12,  24 }, {  13,  29 }, {  13,  36 }, { -10,  93 },
        {  -7,  73 }, {  -2,  73 }, {  13,  46 }, {   9,  49 },
        {  -7, 100 }, {   9,  53 }, {   2,  53 }, {   5,  53 },
        {  -2,  61 }, {   0,  56 }, {   0,  56 }, { -13,  63 },
        {  -5,  60 }, {  -1,  62 }, {   4,  57 }, {  -6,  69 },
        {   4,  57 }, {  14,  39 }, {   4,  51 }, {  13,  68 },
        {  -2,  85 }, {  -6,  78 }, {  -1,  75 }, {  -7,  77 },
        {   2,  54 }, {   5,  50 }, {  -3,  68 }, {   1,  50 },
        {   6,  42 }, {  -4,  81 }, {   1,  63 }, {  -4,  70 },
        {   0,  67 }, {   2,  57 }, {  -2,  76 }, {  11,  35 },
        {   4,  64 }, {   1,  61 }, {  11,  35 }, {  18,  25 },
        {  12,  24 }, {  13,  29 }, {  13,  36 }, { -10,  93 },
        {  -7,  73 }, {  -2,  73 }, {  13,  46 }, {   9,  49 },
        {  -7, 100 }, {   9,  53 }, {   2,  53 }, {   5,  53 },
        {  -2,  61 }, {   0,  56 }, {   0,  56 }, { -13,  63 },
        {  -5,  60 }, {  -1,  62 }, {   4,  57 }, {  -6,  69 },
        {   4,  57 }, {  14,  39 }, {   4,  51 }, {  13,  68 },
        {  11,  28 }, {   2,  40 }, {   3,  44 }, {   0,  49 },
        {   0,  46 }, {   2,  44 }, {   2,  51 }, {   0,  47 },
        {   4,  39 }, {   2,  62 }, {   6,  46 }, {   0,  54 },
        {   3,  54 }, {   2,  58 }, {   4,  63 }, {   6,  51 },
        {   6,  57 }, {   7,  53 }, {   6,  52 }, {   6,  55 },
        {  11,  45 }, {  14,  36 }, {   8,  53 }, {  -1,  82 },
        {   7,  55 }, {  -3,  78 }, {  15,  46 }, {  22,  31 },
        {  -1,  84 }, {  25,   7 }, {  30,  -7 }, {  28,   3 },
        {  28,   4 }, {  32,   0 }, {  34,  -1 }, {  30,   6 },
        {  30,   6 }, {  32,   9 }, {  31,  19 }, {  26,  27 },
        {  26,  30 }, {  37,  20 }, {  28,  34 }, {  17,  70 },
        {  11,  28 }, {   2,  40 }, {   3,  44 }, {   0,  49 },
        {   0,  46 }, {   2,  44 }, {   2,  51 }, {   0,  47 },
        {   4,  39 }, {   2,  62 }, {   6,  46 }, {   0,  54 },
        {   3,  54 }, {   2,  58 }, {   4,  63 }, {   6,  51 },
        {   6,  57 }, {   7,  53 }, {   6,  52 }, {   6,  55 },
        {  11,  45 }, {  14,  36 }, {   8,  53 }, {  -1,  82 },
        {   7,  55 }, {  -3,  78 }, {  15,  46 }, {  22,  31 },
        {  -1,  84 }, {  25,   7 }, {  30,  -7 }, {  28,   3 },
        {  28,   4 }, {  32,   0 }, {  34,  -1 }, {  30,   6 },
        {  30,   6 }, {  32,   9 }, {  31,  19 }, {  26,  27 },
        {  26,  30 }, {  37,  20 }, {  28,  34 }, {  17,  70 },
        {  -4,  79 }, {  -7,  71 }, {  -5,  69 }, {  -9,  70 },
        {  -8,  66 }, { -10,  68 }, { -19,  73 }, { -12,  69 },
        { -16,  70 }, { -15,  67 }, { -20,  62 }, { -19,  70 },
        { -16,  66 }, { -22,  65 }, { -20,  63 }, {  -5,  85 },
        {  -6,  81 }, { -10,  77 }, {  -7,  81 }, { -17,  80 },
        { -18,  73 }, {  -4,  74 }, { -10,  83 }, {  -9,  71 },
        {  -9,  67 }, {  -1,  61 }, {  -8,  66 }, { -14,  66 },
        {   0,  59 }, {   2,  59 }, {   9,  -2 }, {  26,  -9 },
        {  33,  -9 }, {  39,  -7 }, {  41,  -2 }, {  45,   3 },
        {  49,   9 }, {  45,  27 }, {  36,  59 }, {  21, -13 },
        {  33, -14 }, {  39,  -7 }, {  46,  -2 }, {  51,   2 },
        {  60,   6 }, {  61,  17 }, {  55,  34 }, {  42,  62 },
        {  -6,  66 }, {  -7,  35 }, {  -7,  42 }, {  -8,  45 },
        {  -5,  48 }, { -12,  56 }, {  -6,  60 }, {  -5,  62 },
        {  -8,  66 }, {  -8,  76 }, {  -4,  79 }, {  -7,  71 },
        {  -5,  69 }, {  -9,  70 }, {  -8,  66 }, { -10,  68 },
        { -19,  73 }, { -12,  69 }, { -16,  70 }, { -15,  67 },
        { -20,  62 }, { -19,  70 }, { -16,  66 }, { -22,  65 },
        { -20,  63 }, {  -5,  85 }, {  -6,  81 }, { -10,  77 },
        {  -7,  81 }, { -17,  80 }, { -18,  73 }, {  -4,  74 },
        { -10,  83 }, {  -9,  71 }, {  -9,  67 }, {  -1,  61 },
        {  -8,  66 }, { -14,  66 }, {   0,  59 }, {   2,  59 },
        {   9,  -2 }, {  26,  -9 }, {  33,  -9 }, {  39,  -7 },
        {  41,  -2 }, {  45,   3 }, {  49,   9 }, {  45,  27 },
        {  36,  59 }, {  21, -13 }, {  33, -14 }, {  39,  -7 },
        {  46,  -2 }, {  51,   2 }, {  60,   6 }, {  61,  17 },
        {  55,  34 }, {  42,  62 }, {  -6,  66 }, {  -7,  35 },
        {  -7,  42 }, {  -8,  45 }, {  -5,  48 }, { -12,  56 },
        {  -6,  60 }, {  -5,  62 }, {  -8,  66 }, {  -8,  76 },
        { -13, 106 }, { -16, 106 }, { -10,  87 }, { -21, 114 },
        { -18, 110 }, { -14,  98 }, { -22, 110 }, { -21, 106 },
        { -18, 103 }, { -21, 107 }, { -23, 108 }, { -26, 112 },
        { -10,  96 }, { -12,  95 }, {  -5,  91 }, {  -9,  93 },
        { -22,  94 }, {  -5,  86 }, {   9,  67 }, {  -4,  80 },
        { -10,  85 }, {  -1,  70 }, {   7,  60 }, {   9,  58 },
        {   5,  61 }, {  12,  50 }, {  15,  50 }, {  18,  49 },
        {  17,  54 }, {  10,  41 }, {   7,  46 }, {  -1,  51 },
        {   7,  49 }, {   8,  52 }, {   9,  41 }, {   6,  47 },
        {   2,  55 }, {  13,  41 }, {  10,  44 }, {   6,  50 },
        {   5,  53 }, {  13,  49 }, {   4,  63 }, {   6,  64 },
        { -13, 106 }, { -16, 106 }, { -10,  87 }, { -21, 114 },
        { -18, 110 }, { -14,  98 }, { -22, 110 }, { -21, 106 },
        { -18, 103 }, { -21, 107 }, { -23, 108 }, { -26, 112 },
        { -10,  96 }, { -12,  95 }, {  -5,  91 }, {  -9,  93 },
        { -22,  94 }, {  -5,  86 }, {   9,  67 }, {  -4,  80 },
        { -10,  85 }, {  -1,  70 }, {   7,  60 }, {   9,  58 },
        {   5,  61 }, {  12,  50 }, {  15,  50 }, {  18,  49 },
        {  17,  54 }, {  10,  41 }, {   7,  46 }, {  -1,  51 },
        {   7,  49 }, {   8,  52 }, {   9,  41 }, {   6,  47 },
        {   2,  55 }, {  13,  41 }, {  10,  44 }, {   6,  50 },
        {   5,  53 }, {  13,  49 }, {   4,  63 }, {   6,  64 },
        {  14,  11 }, {  11,  14 }, {   9,  11 }, {  18,  11 },
        {  21,   9 }, {  23,  -2 }, {  32, -15 }, {  32, -15 },
        {  34, -21 }, {  39, -23 }, {  42, -33 }, {  41, -31 },
        {  46, -28 }, {  38, -12 }, {  21,  29 }, {  45, -24 },
        {  53, -45 }, {  48, -26 }, {  65, -43 }, {  43, -19 },
        {  39, -10 }, {  30,   9 }, {  18,  26 }, {  20,  27 },
        {   0,  57 }, { -14,  82 }, {  -5,  75 }, { -19,  97 },
        { -35, 125 }, {  27,   0 }, {  28,   0 }, {  31,  -4 },
        {  27,   6 }, {  34,   8 }, {  30,  10 }, {  24,  22 },
        {  33,  19 }, {  22,  32 }, {  26,  31 }, {  21,  41 },
        {  26,  44 }, {  23,  47 }, {  16,  65 }, {  14,  71 },
        {  14,  11 }, {  11,  14 }, {   9,  11 }, {  18,  11 },
        {  21,   9 }, {  23,  -2 }, {  32, -15 }, {  32, -15 },
        {  34, -21 }, {  39, -23 }, {  42, -33 }, {  41, -31 },
        {  46, -28 }, {  38, -12 }, {  21,  29 }, {  45, -24 },
        {  53, -45 }, {  48, -26 }, {  65, -43 }, {  43, -19 },
        {  39, -10 }, {  30,   9 }, {  18,  26 }, {  20,  27 },
        {   0,  57 }, { -14,  82 }, {  -5,  75 }, { -19,  97 },
        { -35, 125 }, {  27,   0 }, {  28,   0 }, {  31,  -4 },
        {  27,   6 }, {  34,   8 }, {  30,  10 }, {  24,  22 },
        {  33,  19 }, {  22,  32 }, {  26,  31 }, {  21,  41 },
        {  26,  44 }, {  23,  47 }, {  16,  65 }, {  14,  71 },
        {  -6,  76 }, {  -2,  44 }, {   0,  45 }, {   0,  52 },
        {  -3,  64 }, {  -2,  59 }, {  -4,  70 }, {  -4,  75 },
        {  -8,  82 }, { -17, 102 }, {  -9,  77 }, {   3,  24 },
        {   0,  42 }, {   0,  48 }, {   0,  55 }, {  -6,  59 },
        {  -7,  71 }, { -12,  83 }, { -11,  87 }, { -30, 119 },
        {   1,  58 }, {  -3,  29 }, {  -1,  36 }, {   1,  38 },
        {   2,  43 }, {  -6,  55 }, {   0,  58 }, {   0,  64 },
        {  -3,  74 }, { -10,  90 }, {  -6,  76 }, {  -2,  44 },
        {   0,  45 }, {   0,  52 }, {  -3,  64 }, {  -2,  59 },
        {  -4,  70 }, {  -4,  75 }, {  -8,  82 }, { -17, 102 },
        {  -9,  77 }, {   3,  24 }, {   0,  42 }, {   0,  48 },
        {   0,  55 }, {  -6,  59 }, {  -7,  71 }, { -12,  83 },
        { -11,  87 }, { -30, 119 }, {   1,  58 }, {  -3,  29 },
        {  -1,  36 }, {   1,  38 }, {   2,  43 }, {  -6,  55 },
        {   0,  58 }, {   0,  64 }, {  -3,  74 }, { -10,  90 },
        {  -3,  74 }, {  -9,  92 }, {  -8,  87 }, { -23, 126 },
        {  -3,  74 }, {  -9,  92 }, {  -8,  87 }, { -23, 126 },
        {  -3,  74 }, {  -9,  92 }, {  -8,  87 }, { -23, 126 }
662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817
    },

    /* i_cabac_init_idc == 1 */
    {
        /* 0 - 10 */
        {  20, -15 }, {   2,  54 }, {   3,  74 }, {  20, -15 },
        {   2,  54 }, {   3,  74 }, { -28, 127 }, { -23, 104 },
        {  -6,  53 }, {  -1,  54 }, {   7,  51 },

        /* 11 - 23 */
        {  22,  25 }, {  34,   0 }, {  16,   0 }, {  -2,   9 },
        {   4,  41 }, { -29, 118 }, {   2,  65 }, {  -6,  71 },
        { -13,  79 }, {   5,  52 }, {   9,  50 }, {  -3,  70 },
        {  10,  54 },

        /* 24 - 39 */
        {  26,  34 }, {  19,  22 }, {  40,   0 }, {  57,   2 },
        {  41,  36 }, {  26,  69 }, { -45, 127 }, { -15, 101 },
        {  -4,  76 }, {  -6,  71 }, { -13,  79 }, {   5,  52 },
        {   6,  69 }, { -13,  90 }, {   0,  52 }, {   8,  43 },

        /* 40 - 53 */
        {  -2,  69 },{  -5,  82 },{ -10,  96 },{   2,  59 },
        {   2,  75 },{  -3,  87 },{  -3,  100 },{   1,  56 },
        {  -3,  74 },{  -6,  85 },{   0,  59 },{  -3,  81 },
        {  -7,  86 },{  -5,  95 },

        /* 54 - 59 */
        {  -1,  66 },{  -1,  77 },{   1,  70 },{  -2,  86 },
        {  -5,  72 },{   0,  61 },

        /* 60 - 69 */
        { 0, 41 },   { 0, 63 },   { 0, 63 },     { 0, 63 },
        { -9, 83 },  { 4, 86 },   { 0, 97 },     { -7, 72 },
        { 13, 41 },  { 3, 62 },

        /* 70 - 104 */
        {  13,  15 }, {   7,  51 }, {   2,  80 }, { -39, 127 },
        { -18,  91 }, { -17,  96 }, { -26,  81 }, { -35,  98 },
        { -24, 102 }, { -23,  97 }, { -27, 119 }, { -24,  99 },
        { -21, 110 }, { -18, 102 }, { -36, 127 }, {   0,  80 },
        {  -5,  89 }, {  -7,  94 }, {  -4,  92 }, {   0,  39 },
        {   0,  65 }, { -15,  84 }, { -35, 127 }, {  -2,  73 },
        { -12, 104 }, {  -9,  91 }, { -31, 127 }, {   3,  55 },
        {   7,  56 }, {   7,  55 }, {   8,  61 }, {  -3,  53 },
        {   0,  68 }, {  -7,  74 }, {  -9,  88 },

        /* 105 -> 165 */
        { -13, 103 }, { -13,  91 }, {  -9,  89 }, { -14,  92 },
        {  -8,  76 }, { -12,  87 }, { -23, 110 }, { -24, 105 },
        { -10,  78 }, { -20, 112 }, { -17,  99 }, { -78, 127 },
        { -70, 127 }, { -50, 127 }, { -46, 127 }, {  -4,  66 },
        {  -5,  78 }, {  -4,  71 }, {  -8,  72 }, {   2,  59 },
        {  -1,  55 }, {  -7,  70 }, {  -6,  75 }, {  -8,  89 },
        { -34, 119 }, {  -3,  75 }, {  32,  20 }, {  30,  22 },
        { -44, 127 }, {   0,  54 }, {  -5,  61 }, {   0,  58 },
        {  -1,  60 }, {  -3,  61 }, {  -8,  67 }, { -25,  84 },
        { -14,  74 }, {  -5,  65 }, {   5,  52 }, {   2,  57 },
        {   0,  61 }, {  -9,  69 }, { -11,  70 }, {  18,  55 },
        {  -4,  71 }, {   0,  58 }, {   7,  61 }, {   9,  41 },
        {  18,  25 }, {   9,  32 }, {   5,  43 }, {   9,  47 },
        {   0,  44 }, {   0,  51 }, {   2,  46 }, {  19,  38 },
        {  -4,  66 }, {  15,  38 }, {  12,  42 }, {   9,  34 },
        {   0,  89 },

        /* 166 - 226 */
        {   4,  45 }, {  10,  28 }, {  10,  31 }, {  33, -11 },
        {  52, -43 }, {  18,  15 }, {  28,   0 }, {  35, -22 },
        {  38, -25 }, {  34,   0 }, {  39, -18 }, {  32, -12 },
        { 102, -94 }, {   0,   0 }, {  56, -15 }, {  33,  -4 },
        {  29,  10 }, {  37,  -5 }, {  51, -29 }, {  39,  -9 },
        {  52, -34 }, {  69, -58 }, {  67, -63 }, {  44,  -5 },
        {  32,   7 }, {  55, -29 }, {  32,   1 }, {   0,   0 },
        {  27,  36 }, {  33, -25 }, {  34, -30 }, {  36, -28 },
        {  38, -28 }, {  38, -27 }, {  34, -18 }, {  35, -16 },
        {  34, -14 }, {  32,  -8 }, {  37,  -6 }, {  35,   0 },
        {  30,  10 }, {  28,  18 }, {  26,  25 }, {  29,  41 },
        {   0,  75 }, {   2,  72 }, {   8,  77 }, {  14,  35 },
        {  18,  31 }, {  17,  35 }, {  21,  30 }, {  17,  45 },
        {  20,  42 }, {  18,  45 }, {  27,  26 }, {  16,  54 },
        {   7,  66 }, {  16,  56 }, {  11,  73 }, {  10,  67 },
        { -10, 116 },

        /* 227 - 275 */
        { -23, 112 }, { -15,  71 }, {  -7,  61 }, {   0,  53 },
        {  -5,  66 }, { -11,  77 }, {  -9,  80 }, {  -9,  84 },
        { -10,  87 }, { -34, 127 }, { -21, 101 }, {  -3,  39 },
        {  -5,  53 }, {  -7,  61 }, { -11,  75 }, { -15,  77 },
        { -17,  91 }, { -25, 107 }, { -25, 111 }, { -28, 122 },
        { -11,  76 }, { -10,  44 }, { -10,  52 }, { -10,  57 },
        {  -9,  58 }, { -16,  72 }, {  -7,  69 }, {  -4,  69 },
        {  -5,  74 }, {  -9,  86 }, {   2,  66 }, {  -9,  34 },
        {   1,  32 }, {  11,  31 }, {   5,  52 }, {  -2,  55 },
        {  -2,  67 }, {   0,  73 }, {  -8,  89 }, {   3,  52 },
        {   7,   4 }, {  10,   8 }, {  17,   8 }, {  16,  19 },
        {   3,  37 }, {  -1,  61 }, {  -5,  73 }, {  -1,  70 },
        {  -4,  78 },

        /* 276 a bit special (not used, bypass is used instead) */
        { 0, 0 },

        /* 277 - 337 */
        { -21, 126 }, { -23, 124 }, { -20, 110 }, { -26, 126 },
        { -25, 124 }, { -17, 105 }, { -27, 121 }, { -27, 117 },
        { -17, 102 }, { -26, 117 }, { -27, 116 }, { -33, 122 },
        { -10,  95 }, { -14, 100 }, {  -8,  95 }, { -17, 111 },
        { -28, 114 }, {  -6,  89 }, {  -2,  80 }, {  -4,  82 },
        {  -9,  85 }, {  -8,  81 }, {  -1,  72 }, {   5,  64 },
        {   1,  67 }, {   9,  56 }, {   0,  69 }, {   1,  69 },
        {   7,  69 }, {  -7,  69 }, {  -6,  67 }, { -16,  77 },
        {  -2,  64 }, {   2,  61 }, {  -6,  67 }, {  -3,  64 },
        {   2,  57 }, {  -3,  65 }, {  -3,  66 }, {   0,  62 },
        {   9,  51 }, {  -1,  66 }, {  -2,  71 }, {  -2,  75 },
        {  -1,  70 }, {  -9,  72 }, {  14,  60 }, {  16,  37 },
        {   0,  47 }, {  18,  35 }, {  11,  37 }, {  12,  41 },
        {  10,  41 }, {   2,  48 }, {  12,  41 }, {  13,  41 },
        {   0,  59 }, {   3,  50 }, {  19,  40 }, {   3,  66 },
        {  18,  50 },

        /* 338 - 398 */
        {  19,  -6 }, {  18,  -6 }, {  14,   0 }, {  26, -12 },
        {  31, -16 }, {  33, -25 }, {  33, -22 }, {  37, -28 },
        {  39, -30 }, {  42, -30 }, {  47, -42 }, {  45, -36 },
        {  49, -34 }, {  41, -17 }, {  32,   9 }, {  69, -71 },
        {  63, -63 }, {  66, -64 }, {  77, -74 }, {  54, -39 },
        {  52, -35 }, {  41, -10 }, {  36,   0 }, {  40,  -1 },
        {  30,  14 }, {  28,  26 }, {  23,  37 }, {  12,  55 },
        {  11,  65 }, {  37, -33 }, {  39, -36 }, {  40, -37 },
        {  38, -30 }, {  46, -33 }, {  42, -30 }, {  40, -24 },
        {  49, -29 }, {  38, -12 }, {  40, -10 }, {  38,  -3 },
        {  46,  -5 }, {  31,  20 }, {  29,  30 }, {  25,  44 },
        {  12,  48 }, {  11,  49 }, {  26,  45 }, {  22,  22 },
        {  23,  22 }, {  27,  21 }, {  33,  20 }, {  26,  28 },
        {  30,  24 }, {  27,  34 }, {  18,  42 }, {  25,  39 },
        {  18,  50 }, {  12,  70 }, {  21,  54 }, {  14,  71 },
        {  11,  83 },

        /* 399 - 435 */
        {  25,  32 }, {  21,  49 }, {  21,  54 },
        {  -5,  85 }, {  -6,  81 }, { -10,  77 }, {  -7,  81 },
        { -17,  80 }, { -18,  73 }, {  -4,  74 }, { -10,  83 },
        {  -9,  71 }, {  -9,  67 }, {  -1,  61 }, {  -8,  66 },
        { -14,  66 }, {   0,  59 }, {   2,  59 }, {  17, -10 },
        {  32, -13 }, {  42,  -9 }, {  49,  -5 }, {  53,   0 },
        {  64,   3 }, {  68,  10 }, {  66,  27 }, {  47,  57 },
        {  -5,  71 }, {   0,  24 }, {  -1,  36 }, {  -2,  42 },
        {  -2,  52 }, {  -9,  57 }, {  -6,  63 }, {  -4,  65 },
        {  -4,  67 }, {  -7,  82 },

        /* 436 - 459 */
        {  -3,  81 }, {  -3,  76 }, {  -7,  72 }, {  -6,  78 },
        { -12,  72 }, { -14,  68 }, {  -3,  70 }, {  -6,  76 },
        {  -5,  66 }, {  -5,  62 }, {   0,  57 }, {  -4,  61 },
        {  -9,  60 }, {   1,  54 }, {   2,  58 }, {  17, -10 },
        {  32, -13 }, {  42,  -9 }, {  49,  -5 }, {  53,   0 },
        {  64,   3 }, {  68,  10 }, {  66,  27 }, {  47,  57 },
818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960

        /* 460 - 1024 */
        {   0,  80 }, {  -5,  89 }, {  -7,  94 }, {  -4,  92 },
        {   0,  39 }, {   0,  65 }, { -15,  84 }, { -35, 127 },
        {  -2,  73 }, { -12, 104 }, {  -9,  91 }, { -31, 127 },
        {   0,  80 }, {  -5,  89 }, {  -7,  94 }, {  -4,  92 },
        {   0,  39 }, {   0,  65 }, { -15,  84 }, { -35, 127 },
        {  -2,  73 }, { -12, 104 }, {  -9,  91 }, { -31, 127 },
        { -13, 103 }, { -13,  91 }, {  -9,  89 }, { -14,  92 },
        {  -8,  76 }, { -12,  87 }, { -23, 110 }, { -24, 105 },
        { -10,  78 }, { -20, 112 }, { -17,  99 }, { -78, 127 },
        { -70, 127 }, { -50, 127 }, { -46, 127 }, {  -4,  66 },
        {  -5,  78 }, {  -4,  71 }, {  -8,  72 }, {   2,  59 },
        {  -1,  55 }, {  -7,  70 }, {  -6,  75 }, {  -8,  89 },
        { -34, 119 }, {  -3,  75 }, {  32,  20 }, {  30,  22 },
        { -44, 127 }, {   0,  54 }, {  -5,  61 }, {   0,  58 },
        {  -1,  60 }, {  -3,  61 }, {  -8,  67 }, { -25,  84 },
        { -14,  74 }, {  -5,  65 }, {   5,  52 }, {   2,  57 },
        {   0,  61 }, {  -9,  69 }, { -11,  70 }, {  18,  55 },
        { -13, 103 }, { -13,  91 }, {  -9,  89 }, { -14,  92 },
        {  -8,  76 }, { -12,  87 }, { -23, 110 }, { -24, 105 },
        { -10,  78 }, { -20, 112 }, { -17,  99 }, { -78, 127 },
        { -70, 127 }, { -50, 127 }, { -46, 127 }, {  -4,  66 },
        {  -5,  78 }, {  -4,  71 }, {  -8,  72 }, {   2,  59 },
        {  -1,  55 }, {  -7,  70 }, {  -6,  75 }, {  -8,  89 },
        { -34, 119 }, {  -3,  75 }, {  32,  20 }, {  30,  22 },
        { -44, 127 }, {   0,  54 }, {  -5,  61 }, {   0,  58 },
        {  -1,  60 }, {  -3,  61 }, {  -8,  67 }, { -25,  84 },
        { -14,  74 }, {  -5,  65 }, {   5,  52 }, {   2,  57 },
        {   0,  61 }, {  -9,  69 }, { -11,  70 }, {  18,  55 },
        {   4,  45 }, {  10,  28 }, {  10,  31 }, {  33, -11 },
        {  52, -43 }, {  18,  15 }, {  28,   0 }, {  35, -22 },
        {  38, -25 }, {  34,   0 }, {  39, -18 }, {  32, -12 },
        { 102, -94 }, {   0,   0 }, {  56, -15 }, {  33,  -4 },
        {  29,  10 }, {  37,  -5 }, {  51, -29 }, {  39,  -9 },
        {  52, -34 }, {  69, -58 }, {  67, -63 }, {  44,  -5 },
        {  32,   7 }, {  55, -29 }, {  32,   1 }, {   0,   0 },
        {  27,  36 }, {  33, -25 }, {  34, -30 }, {  36, -28 },
        {  38, -28 }, {  38, -27 }, {  34, -18 }, {  35, -16 },
        {  34, -14 }, {  32,  -8 }, {  37,  -6 }, {  35,   0 },
        {  30,  10 }, {  28,  18 }, {  26,  25 }, {  29,  41 },
        {   4,  45 }, {  10,  28 }, {  10,  31 }, {  33, -11 },
        {  52, -43 }, {  18,  15 }, {  28,   0 }, {  35, -22 },
        {  38, -25 }, {  34,   0 }, {  39, -18 }, {  32, -12 },
        { 102, -94 }, {   0,   0 }, {  56, -15 }, {  33,  -4 },
        {  29,  10 }, {  37,  -5 }, {  51, -29 }, {  39,  -9 },
        {  52, -34 }, {  69, -58 }, {  67, -63 }, {  44,  -5 },
        {  32,   7 }, {  55, -29 }, {  32,   1 }, {   0,   0 },
        {  27,  36 }, {  33, -25 }, {  34, -30 }, {  36, -28 },
        {  38, -28 }, {  38, -27 }, {  34, -18 }, {  35, -16 },
        {  34, -14 }, {  32,  -8 }, {  37,  -6 }, {  35,   0 },
        {  30,  10 }, {  28,  18 }, {  26,  25 }, {  29,  41 },
        {  -5,  85 }, {  -6,  81 }, { -10,  77 }, {  -7,  81 },
        { -17,  80 }, { -18,  73 }, {  -4,  74 }, { -10,  83 },
        {  -9,  71 }, {  -9,  67 }, {  -1,  61 }, {  -8,  66 },
        { -14,  66 }, {   0,  59 }, {   2,  59 }, {  -3,  81 },
        {  -3,  76 }, {  -7,  72 }, {  -6,  78 }, { -12,  72 },
        { -14,  68 }, {  -3,  70 }, {  -6,  76 }, {  -5,  66 },
        {  -5,  62 }, {   0,  57 }, {  -4,  61 }, {  -9,  60 },
        {   1,  54 }, {   2,  58 }, {  17, -10 }, {  32, -13 },
        {  42,  -9 }, {  49,  -5 }, {  53,   0 }, {  64,   3 },
        {  68,  10 }, {  66,  27 }, {  47,  57 }, {  17, -10 },
        {  32, -13 }, {  42,  -9 }, {  49,  -5 }, {  53,   0 },
        {  64,   3 }, {  68,  10 }, {  66,  27 }, {  47,  57 },
        {  -5,  71 }, {   0,  24 }, {  -1,  36 }, {  -2,  42 },
        {  -2,  52 }, {  -9,  57 }, {  -6,  63 }, {  -4,  65 },
        {  -4,  67 }, {  -7,  82 }, {  -5,  85 }, {  -6,  81 },
        { -10,  77 }, {  -7,  81 }, { -17,  80 }, { -18,  73 },
        {  -4,  74 }, { -10,  83 }, {  -9,  71 }, {  -9,  67 },
        {  -1,  61 }, {  -8,  66 }, { -14,  66 }, {   0,  59 },
        {   2,  59 }, {  -3,  81 }, {  -3,  76 }, {  -7,  72 },
        {  -6,  78 }, { -12,  72 }, { -14,  68 }, {  -3,  70 },
        {  -6,  76 }, {  -5,  66 }, {  -5,  62 }, {   0,  57 },
        {  -4,  61 }, {  -9,  60 }, {   1,  54 }, {   2,  58 },
        {  17, -10 }, {  32, -13 }, {  42,  -9 }, {  49,  -5 },
        {  53,   0 }, {  64,   3 }, {  68,  10 }, {  66,  27 },
        {  47,  57 }, {  17, -10 }, {  32, -13 }, {  42,  -9 },
        {  49,  -5 }, {  53,   0 }, {  64,   3 }, {  68,  10 },
        {  66,  27 }, {  47,  57 }, {  -5,  71 }, {   0,  24 },
        {  -1,  36 }, {  -2,  42 }, {  -2,  52 }, {  -9,  57 },
        {  -6,  63 }, {  -4,  65 }, {  -4,  67 }, {  -7,  82 },
        { -21, 126 }, { -23, 124 }, { -20, 110 }, { -26, 126 },
        { -25, 124 }, { -17, 105 }, { -27, 121 }, { -27, 117 },
        { -17, 102 }, { -26, 117 }, { -27, 116 }, { -33, 122 },
        { -10,  95 }, { -14, 100 }, {  -8,  95 }, { -17, 111 },
        { -28, 114 }, {  -6,  89 }, {  -2,  80 }, {  -4,  82 },
        {  -9,  85 }, {  -8,  81 }, {  -1,  72 }, {   5,  64 },
        {   1,  67 }, {   9,  56 }, {   0,  69 }, {   1,  69 },
        {   7,  69 }, {  -7,  69 }, {  -6,  67 }, { -16,  77 },
        {  -2,  64 }, {   2,  61 }, {  -6,  67 }, {  -3,  64 },
        {   2,  57 }, {  -3,  65 }, {  -3,  66 }, {   0,  62 },
        {   9,  51 }, {  -1,  66 }, {  -2,  71 }, {  -2,  75 },
        { -21, 126 }, { -23, 124 }, { -20, 110 }, { -26, 126 },
        { -25, 124 }, { -17, 105 }, { -27, 121 }, { -27, 117 },
        { -17, 102 }, { -26, 117 }, { -27, 116 }, { -33, 122 },
        { -10,  95 }, { -14, 100 }, {  -8,  95 }, { -17, 111 },
        { -28, 114 }, {  -6,  89 }, {  -2,  80 }, {  -4,  82 },
        {  -9,  85 }, {  -8,  81 }, {  -1,  72 }, {   5,  64 },
        {   1,  67 }, {   9,  56 }, {   0,  69 }, {   1,  69 },
        {   7,  69 }, {  -7,  69 }, {  -6,  67 }, { -16,  77 },
        {  -2,  64 }, {   2,  61 }, {  -6,  67 }, {  -3,  64 },
        {   2,  57 }, {  -3,  65 }, {  -3,  66 }, {   0,  62 },
        {   9,  51 }, {  -1,  66 }, {  -2,  71 }, {  -2,  75 },
        {  19,  -6 }, {  18,  -6 }, {  14,   0 }, {  26, -12 },
        {  31, -16 }, {  33, -25 }, {  33, -22 }, {  37, -28 },
        {  39, -30 }, {  42, -30 }, {  47, -42 }, {  45, -36 },
        {  49, -34 }, {  41, -17 }, {  32,   9 }, {  69, -71 },
        {  63, -63 }, {  66, -64 }, {  77, -74 }, {  54, -39 },
        {  52, -35 }, {  41, -10 }, {  36,   0 }, {  40,  -1 },
        {  30,  14 }, {  28,  26 }, {  23,  37 }, {  12,  55 },
        {  11,  65 }, {  37, -33 }, {  39, -36 }, {  40, -37 },
        {  38, -30 }, {  46, -33 }, {  42, -30 }, {  40, -24 },
        {  49, -29 }, {  38, -12 }, {  40, -10 }, {  38,  -3 },
        {  46,  -5 }, {  31,  20 }, {  29,  30 }, {  25,  44 },
        {  19,  -6 }, {  18,  -6 }, {  14,   0 }, {  26, -12 },
        {  31, -16 }, {  33, -25 }, {  33, -22 }, {  37, -28 },
        {  39, -30 }, {  42, -30 }, {  47, -42 }, {  45, -36 },
        {  49, -34 }, {  41, -17 }, {  32,   9 }, {  69, -71 },
        {  63, -63 }, {  66, -64 }, {  77, -74 }, {  54, -39 },
        {  52, -35 }, {  41, -10 }, {  36,   0 }, {  40,  -1 },
        {  30,  14 }, {  28,  26 }, {  23,  37 }, {  12,  55 },
        {  11,  65 }, {  37, -33 }, {  39, -36 }, {  40, -37 },
        {  38, -30 }, {  46, -33 }, {  42, -30 }, {  40, -24 },
        {  49, -29 }, {  38, -12 }, {  40, -10 }, {  38,  -3 },
        {  46,  -5 }, {  31,  20 }, {  29,  30 }, {  25,  44 },
        { -23, 112 }, { -15,  71 }, {  -7,  61 }, {   0,  53 },
        {  -5,  66 }, { -11,  77 }, {  -9,  80 }, {  -9,  84 },
        { -10,  87 }, { -34, 127 }, { -21, 101 }, {  -3,  39 },
        {  -5,  53 }, {  -7,  61 }, { -11,  75 }, { -15,  77 },
        { -17,  91 }, { -25, 107 }, { -25, 111 }, { -28, 122 },
        { -11,  76 }, { -10,  44 }, { -10,  52 }, { -10,  57 },
        {  -9,  58 }, { -16,  72 }, {  -7,  69 }, {  -4,  69 },
        {  -5,  74 }, {  -9,  86 }, { -23, 112 }, { -15,  71 },
        {  -7,  61 }, {   0,  53 }, {  -5,  66 }, { -11,  77 },
        {  -9,  80 }, {  -9,  84 }, { -10,  87 }, { -34, 127 },
        { -21, 101 }, {  -3,  39 }, {  -5,  53 }, {  -7,  61 },
        { -11,  75 }, { -15,  77 }, { -17,  91 }, { -25, 107 },
        { -25, 111 }, { -28, 122 }, { -11,  76 }, { -10,  44 },
        { -10,  52 }, { -10,  57 }, {  -9,  58 }, { -16,  72 },
        {  -7,  69 }, {  -4,  69 }, {  -5,  74 }, {  -9,  86 },
        {  -2,  73 }, { -12, 104 }, {  -9,  91 }, { -31, 127 },
        {  -2,  73 }, { -12, 104 }, {  -9,  91 }, { -31, 127 },
        {  -2,  73 }, { -12, 104 }, {  -9,  91 }, { -31, 127 }
961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116
    },

    /* i_cabac_init_idc == 2 */
    {
        /* 0 - 10 */
        {  20, -15 }, {   2,  54 }, {   3,  74 }, {  20, -15 },
        {   2,  54 }, {   3,  74 }, { -28, 127 }, { -23, 104 },
        {  -6,  53 }, {  -1,  54 }, {   7,  51 },

        /* 11 - 23 */
        {  29,  16 }, {  25,   0 }, {  14,   0 }, { -10,  51 },
        {  -3,  62 }, { -27,  99 }, {  26,  16 }, {  -4,  85 },
        { -24, 102 }, {   5,  57 }, {   6,  57 }, { -17,  73 },
        {  14,  57 },

        /* 24 - 39 */
        {  20,  40 }, {  20,  10 }, {  29,   0 }, {  54,   0 },
        {  37,  42 }, {  12,  97 }, { -32, 127 }, { -22, 117 },
        {  -2,  74 }, {  -4,  85 }, { -24, 102 }, {   5,  57 },
        {  -6,  93 }, { -14,  88 }, {  -6,  44 }, {   4,  55 },

        /* 40 - 53 */
        { -11,  89 },{ -15,  103 },{ -21,  116 },{  19,  57 },
        {  20,  58 },{   4,  84 },{   6,  96 },{   1,  63 },
        {  -5,  85 },{ -13,  106 },{   5,  63 },{   6,  75 },
        {  -3,  90 },{  -1,  101 },

        /* 54 - 59 */
        {   3,  55 },{  -4,  79 },{  -2,  75 },{ -12,  97 },
        {  -7,  50 },{   1,  60 },

        /* 60 - 69 */
        { 0, 41 },   { 0, 63 },   { 0, 63 },     { 0, 63 },
        { -9, 83 },  { 4, 86 },   { 0, 97 },     { -7, 72 },
        { 13, 41 },  { 3, 62 },

        /* 70 - 104 */
        {   7,  34 }, {  -9,  88 }, { -20, 127 }, { -36, 127 },
        { -17,  91 }, { -14,  95 }, { -25,  84 }, { -25,  86 },
        { -12,  89 }, { -17,  91 }, { -31, 127 }, { -14,  76 },
        { -18, 103 }, { -13,  90 }, { -37, 127 }, {  11,  80 },
        {   5,  76 }, {   2,  84 }, {   5,  78 }, {  -6,  55 },
        {   4,  61 }, { -14,  83 }, { -37, 127 }, {  -5,  79 },
        { -11, 104 }, { -11,  91 }, { -30, 127 }, {   0,  65 },
        {  -2,  79 }, {   0,  72 }, {  -4,  92 }, {  -6,  56 },
        {   3,  68 }, {  -8,  71 }, { -13,  98 },

        /* 105 -> 165 */
        {  -4,  86 }, { -12,  88 }, {  -5,  82 }, {  -3,  72 },
        {  -4,  67 }, {  -8,  72 }, { -16,  89 }, {  -9,  69 },
        {  -1,  59 }, {   5,  66 }, {   4,  57 }, {  -4,  71 },
        {  -2,  71 }, {   2,  58 }, {  -1,  74 }, {  -4,  44 },
        {  -1,  69 }, {   0,  62 }, {  -7,  51 }, {  -4,  47 },
        {  -6,  42 }, {  -3,  41 }, {  -6,  53 }, {   8,  76 },
        {  -9,  78 }, { -11,  83 }, {   9,  52 }, {   0,  67 },
        {  -5,  90 }, {   1,  67 }, { -15,  72 }, {  -5,  75 },
        {  -8,  80 }, { -21,  83 }, { -21,  64 }, { -13,  31 },
        { -25,  64 }, { -29,  94 }, {   9,  75 }, {  17,  63 },
        {  -8,  74 }, {  -5,  35 }, {  -2,  27 }, {  13,  91 },
        {   3,  65 }, {  -7,  69 }, {   8,  77 }, { -10,  66 },
        {   3,  62 }, {  -3,  68 }, { -20,  81 }, {   0,  30 },
        {   1,   7 }, {  -3,  23 }, { -21,  74 }, {  16,  66 },
        { -23, 124 }, {  17,  37 }, {  44, -18 }, {  50, -34 },
        { -22, 127 },

        /* 166 - 226 */
        {   4,  39 }, {   0,  42 }, {   7,  34 }, {  11,  29 },
        {   8,  31 }, {   6,  37 }, {   7,  42 }, {   3,  40 },
        {   8,  33 }, {  13,  43 }, {  13,  36 }, {   4,  47 },
        {   3,  55 }, {   2,  58 }, {   6,  60 }, {   8,  44 },
        {  11,  44 }, {  14,  42 }, {   7,  48 }, {   4,  56 },
        {   4,  52 }, {  13,  37 }, {   9,  49 }, {  19,  58 },
        {  10,  48 }, {  12,  45 }, {   0,  69 }, {  20,  33 },
        {   8,  63 }, {  35, -18 }, {  33, -25 }, {  28,  -3 },
        {  24,  10 }, {  27,   0 }, {  34, -14 }, {  52, -44 },
        {  39, -24 }, {  19,  17 }, {  31,  25 }, {  36,  29 },
        {  24,  33 }, {  34,  15 }, {  30,  20 }, {  22,  73 },
        {  20,  34 }, {  19,  31 }, {  27,  44 }, {  19,  16 },
        {  15,  36 }, {  15,  36 }, {  21,  28 }, {  25,  21 },
        {  30,  20 }, {  31,  12 }, {  27,  16 }, {  24,  42 },
        {   0,  93 }, {  14,  56 }, {  15,  57 }, {  26,  38 },
        { -24, 127 },

        /* 227 - 275 */
        { -24, 115 }, { -22,  82 }, {  -9,  62 }, {   0,  53 },
        {   0,  59 }, { -14,  85 }, { -13,  89 }, { -13,  94 },
        { -11,  92 }, { -29, 127 }, { -21, 100 }, { -14,  57 },
        { -12,  67 }, { -11,  71 }, { -10,  77 }, { -21,  85 },
        { -16,  88 }, { -23, 104 }, { -15,  98 }, { -37, 127 },
        { -10,  82 }, {  -8,  48 }, {  -8,  61 }, {  -8,  66 },
        {  -7,  70 }, { -14,  75 }, { -10,  79 }, {  -9,  83 },
        { -12,  92 }, { -18, 108 }, {  -4,  79 }, { -22,  69 },
        { -16,  75 }, {  -2,  58 }, {   1,  58 }, { -13,  78 },
        {  -9,  83 }, {  -4,  81 }, { -13,  99 }, { -13,  81 },
        {  -6,  38 }, { -13,  62 }, {  -6,  58 }, {  -2,  59 },
        { -16,  73 }, { -10,  76 }, { -13,  86 }, {  -9,  83 },
        { -10,  87 },

        /* 276 a bit special (not used, bypass is used instead) */
        { 0, 0 },

        /* 277 - 337 */
        { -22, 127 }, { -25, 127 }, { -25, 120 }, { -27, 127 },
        { -19, 114 }, { -23, 117 }, { -25, 118 }, { -26, 117 },
        { -24, 113 }, { -28, 118 }, { -31, 120 }, { -37, 124 },
        { -10,  94 }, { -15, 102 }, { -10,  99 }, { -13, 106 },
        { -50, 127 }, {  -5,  92 }, {  17,  57 }, {  -5,  86 },
        { -13,  94 }, { -12,  91 }, {  -2,  77 }, {   0,  71 },
        {  -1,  73 }, {   4,  64 }, {  -7,  81 }, {   5,  64 },
        {  15,  57 }, {   1,  67 }, {   0,  68 }, { -10,  67 },
        {   1,  68 }, {   0,  77 }, {   2,  64 }, {   0,  68 },
        {  -5,  78 }, {   7,  55 }, {   5,  59 }, {   2,  65 },
        {  14,  54 }, {  15,  44 }, {   5,  60 }, {   2,  70 },
        {  -2,  76 }, { -18,  86 }, {  12,  70 }, {   5,  64 },
        { -12,  70 }, {  11,  55 }, {   5,  56 }, {   0,  69 },
        {   2,  65 }, {  -6,  74 }, {   5,  54 }, {   7,  54 },
        {  -6,  76 }, { -11,  82 }, {  -2,  77 }, {  -2,  77 },
        {  25,  42 },

        /* 338 - 398 */
        {  17, -13 }, {  16,  -9 }, {  17, -12 }, {  27, -21 },
        {  37, -30 }, {  41, -40 }, {  42, -41 }, {  48, -47 },
        {  39, -32 }, {  46, -40 }, {  52, -51 }, {  46, -41 },
        {  52, -39 }, {  43, -19 }, {  32,  11 }, {  61, -55 },
        {  56, -46 }, {  62, -50 }, {  81, -67 }, {  45, -20 },
        {  35,  -2 }, {  28,  15 }, {  34,   1 }, {  39,   1 },
        {  30,  17 }, {  20,  38 }, {  18,  45 }, {  15,  54 },
        {   0,  79 }, {  36, -16 }, {  37, -14 }, {  37, -17 },
        {  32,   1 }, {  34,  15 }, {  29,  15 }, {  24,  25 },
        {  34,  22 }, {  31,  16 }, {  35,  18 }, {  31,  28 },
        {  33,  41 }, {  36,  28 }, {  27,  47 }, {  21,  62 },
        {  18,  31 }, {  19,  26 }, {  36,  24 }, {  24,  23 },
        {  27,  16 }, {  24,  30 }, {  31,  29 }, {  22,  41 },
        {  22,  42 }, {  16,  60 }, {  15,  52 }, {  14,  60 },
        {   3,  78 }, { -16, 123 }, {  21,  53 }, {  22,  56 },
        {  25,  61 },

        /* 399 - 435 */
        {  21,  33 }, {  19,  50 }, {  17,  61 },
        {  -3,  78 }, {  -8,  74 }, {  -9,  72 }, { -10,  72 },
        { -18,  75 }, { -12,  71 }, { -11,  63 }, {  -5,  70 },
        { -17,  75 }, { -14,  72 }, { -16,  67 }, {  -8,  53 },
        { -14,  59 }, {  -9,  52 }, { -11,  68 }, {   9,  -2 },
        {  30, -10 }, {  31,  -4 }, {  33,  -1 }, {  33,   7 },
        {  31,  12 }, {  37,  23 }, {  31,  38 }, {  20,  64 },
        {  -9,  71 }, {  -7,  37 }, {  -8,  44 }, { -11,  49 },
        { -10,  56 }, { -12,  59 }, {  -8,  63 }, {  -9,  67 },
        {  -6,  68 }, { -10,  79 },

        /* 436 - 459 */
        {  -3,  78 }, {  -8,  74 }, {  -9,  72 }, { -10,  72 },
        { -18,  75 }, { -12,  71 }, { -11,  63 }, {  -5,  70 },
        { -17,  75 }, { -14,  72 }, { -16,  67 }, {  -8,  53 },
        { -14,  59 }, {  -9,  52 }, { -11,  68 }, {   9,  -2 },
        {  30, -10 }, {  31,  -4 }, {  33,  -1 }, {  33,   7 },
        {  31,  12 }, {  37,  23 }, {  31,  38 }, {  20,  64 },
1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259

        /* 460 - 1024 */
        {  11,  80 }, {   5,  76 }, {   2,  84 }, {   5,  78 },
        {  -6,  55 }, {   4,  61 }, { -14,  83 }, { -37, 127 },
        {  -5,  79 }, { -11, 104 }, { -11,  91 }, { -30, 127 },
        {  11,  80 }, {   5,  76 }, {   2,  84 }, {   5,  78 },
        {  -6,  55 }, {   4,  61 }, { -14,  83 }, { -37, 127 },
        {  -5,  79 }, { -11, 104 }, { -11,  91 }, { -30, 127 },
        {  -4,  86 }, { -12,  88 }, {  -5,  82 }, {  -3,  72 },
        {  -4,  67 }, {  -8,  72 }, { -16,  89 }, {  -9,  69 },
        {  -1,  59 }, {   5,  66 }, {   4,  57 }, {  -4,  71 },
        {  -2,  71 }, {   2,  58 }, {  -1,  74 }, {  -4,  44 },
        {  -1,  69 }, {   0,  62 }, {  -7,  51 }, {  -4,  47 },
        {  -6,  42 }, {  -3,  41 }, {  -6,  53 }, {   8,  76 },
        {  -9,  78 }, { -11,  83 }, {   9,  52 }, {   0,  67 },
        {  -5,  90 }, {   1,  67 }, { -15,  72 }, {  -5,  75 },
        {  -8,  80 }, { -21,  83 }, { -21,  64 }, { -13,  31 },
        { -25,  64 }, { -29,  94 }, {   9,  75 }, {  17,  63 },
        {  -8,  74 }, {  -5,  35 }, {  -2,  27 }, {  13,  91 },
        {  -4,  86 }, { -12,  88 }, {  -5,  82 }, {  -3,  72 },
        {  -4,  67 }, {  -8,  72 }, { -16,  89 }, {  -9,  69 },
        {  -1,  59 }, {   5,  66 }, {   4,  57 }, {  -4,  71 },
        {  -2,  71 }, {   2,  58 }, {  -1,  74 }, {  -4,  44 },
        {  -1,  69 }, {   0,  62 }, {  -7,  51 }, {  -4,  47 },
        {  -6,  42 }, {  -3,  41 }, {  -6,  53 }, {   8,  76 },
        {  -9,  78 }, { -11,  83 }, {   9,  52 }, {   0,  67 },
        {  -5,  90 }, {   1,  67 }, { -15,  72 }, {  -5,  75 },
        {  -8,  80 }, { -21,  83 }, { -21,  64 }, { -13,  31 },
        { -25,  64 }, { -29,  94 }, {   9,  75 }, {  17,  63 },
        {  -8,  74 }, {  -5,  35 }, {  -2,  27 }, {  13,  91 },
        {   4,  39 }, {   0,  42 }, {   7,  34 }, {  11,  29 },
        {   8,  31 }, {   6,  37 }, {   7,  42 }, {   3,  40 },
        {   8,  33 }, {  13,  43 }, {  13,  36 }, {   4,  47 },
        {   3,  55 }, {   2,  58 }, {   6,  60 }, {   8,  44 },
        {  11,  44 }, {  14,  42 }, {   7,  48 }, {   4,  56 },
        {   4,  52 }, {  13,  37 }, {   9,  49 }, {  19,  58 },
        {  10,  48 }, {  12,  45 }, {   0,  69 }, {  20,  33 },
        {   8,  63 }, {  35, -18 }, {  33, -25 }, {  28,  -3 },
        {  24,  10 }, {  27,   0 }, {  34, -14 }, {  52, -44 },
        {  39, -24 }, {  19,  17 }, {  31,  25 }, {  36,  29 },
        {  24,  33 }, {  34,  15 }, {  30,  20 }, {  22,  73 },
        {   4,  39 }, {   0,  42 }, {   7,  34 }, {  11,  29 },
        {   8,  31 }, {   6,  37 }, {   7,  42 }, {   3,  40 },
        {   8,  33 }, {  13,  43 }, {  13,  36 }, {   4,  47 },
        {   3,  55 }, {   2,  58 }, {   6,  60 }, {   8,  44 },
        {  11,  44 }, {  14,  42 }, {   7,  48 }, {   4,  56 },
        {   4,  52 }, {  13,  37 }, {   9,  49 }, {  19,  58 },
        {  10,  48 }, {  12,  45 }, {   0,  69 }, {  20,  33 },
        {   8,  63 }, {  35, -18 }, {  33, -25 }, {  28,  -3 },
        {  24,  10 }, {  27,   0 }, {  34, -14 }, {  52, -44 },
        {  39, -24 }, {  19,  17 }, {  31,  25 }, {  36,  29 },
        {  24,  33 }, {  34,  15 }, {  30,  20 }, {  22,  73 },
        {  -3,  78 }, {  -8,  74 }, {  -9,  72 }, { -10,  72 },
        { -18,  75 }, { -12,  71 }, { -11,  63 }, {  -5,  70 },
        { -17,  75 }, { -14,  72 }, { -16,  67 }, {  -8,  53 },
        { -14,  59 }, {  -9,  52 }, { -11,  68 }, {  -3,  78 },
        {  -8,  74 }, {  -9,  72 }, { -10,  72 }, { -18,  75 },
        { -12,  71 }, { -11,  63 }, {  -5,  70 }, { -17,  75 },
        { -14,  72 }, { -16,  67 }, {  -8,  53 }, { -14,  59 },
        {  -9,  52 }, { -11,  68 }, {   9,  -2 }, {  30, -10 },
        {  31,  -4 }, {  33,  -1 }, {  33,   7 }, {  31,  12 },
        {  37,  23 }, {  31,  38 }, {  20,  64 }, {   9,  -2 },
        {  30, -10 }, {  31,  -4 }, {  33,  -1 }, {  33,   7 },
        {  31,  12 }, {  37,  23 }, {  31,  38 }, {  20,  64 },
        {  -9,  71 }, {  -7,  37 }, {  -8,  44 }, { -11,  49 },
        { -10,  56 }, { -12,  59 }, {  -8,  63 }, {  -9,  67 },
        {  -6,  68 }, { -10,  79 }, {  -3,  78 }, {  -8,  74 },
        {  -9,  72 }, { -10,  72 }, { -18,  75 }, { -12,  71 },
        { -11,  63 }, {  -5,  70 }, { -17,  75 }, { -14,  72 },
        { -16,  67 }, {  -8,  53 }, { -14,  59 }, {  -9,  52 },
        { -11,  68 }, {  -3,  78 }, {  -8,  74 }, {  -9,  72 },
        { -10,  72 }, { -18,  75 }, { -12,  71 }, { -11,  63 },
        {  -5,  70 }, { -17,  75 }, { -14,  72 }, { -16,  67 },
        {  -8,  53 }, { -14,  59 }, {  -9,  52 }, { -11,  68 },
        {   9,  -2 }, {  30, -10 }, {  31,  -4 }, {  33,  -1 },
        {  33,   7 }, {  31,  12 }, {  37,  23 }, {  31,  38 },
        {  20,  64 }, {   9,  -2 }, {  30, -10 }, {  31,  -4 },
        {  33,  -1 }, {  33,   7 }, {  31,  12 }, {  37,  23 },
        {  31,  38 }, {  20,  64 }, {  -9,  71 }, {  -7,  37 },
        {  -8,  44 }, { -11,  49 }, { -10,  56 }, { -12,  59 },
        {  -8,  63 }, {  -9,  67 }, {  -6,  68 }, { -10,  79 },
        { -22, 127 }, { -25, 127 }, { -25, 120 }, { -27, 127 },
        { -19, 114 }, { -23, 117 }, { -25, 118 }, { -26, 117 },
        { -24, 113 }, { -28, 118 }, { -31, 120 }, { -37, 124 },
        { -10,  94 }, { -15, 102 }, { -10,  99 }, { -13, 106 },
        { -50, 127 }, {  -5,  92 }, {  17,  57 }, {  -5,  86 },
        { -13,  94 }, { -12,  91 }, {  -2,  77 }, {   0,  71 },
        {  -1,  73 }, {   4,  64 }, {  -7,  81 }, {   5,  64 },
        {  15,  57 }, {   1,  67 }, {   0,  68 }, { -10,  67 },
        {   1,  68 }, {   0,  77 }, {   2,  64 }, {   0,  68 },
        {  -5,  78 }, {   7,  55 }, {   5,  59 }, {   2,  65 },
        {  14,  54 }, {  15,  44 }, {   5,  60 }, {   2,  70 },
        { -22, 127 }, { -25, 127 }, { -25, 120 }, { -27, 127 },
        { -19, 114 }, { -23, 117 }, { -25, 118 }, { -26, 117 },
        { -24, 113 }, { -28, 118 }, { -31, 120 }, { -37, 124 },
        { -10,  94 }, { -15, 102 }, { -10,  99 }, { -13, 106 },
        { -50, 127 }, {  -5,  92 }, {  17,  57 }, {  -5,  86 },
        { -13,  94 }, { -12,  91 }, {  -2,  77 }, {   0,  71 },
        {  -1,  73 }, {   4,  64 }, {  -7,  81 }, {   5,  64 },
        {  15,  57 }, {   1,  67 }, {   0,  68 }, { -10,  67 },
        {   1,  68 }, {   0,  77 }, {   2,  64 }, {   0,  68 },
        {  -5,  78 }, {   7,  55 }, {   5,  59 }, {   2,  65 },
        {  14,  54 }, {  15,  44 }, {   5,  60 }, {   2,  70 },
        {  17, -13 }, {  16,  -9 }, {  17, -12 }, {  27, -21 },
        {  37, -30 }, {  41, -40 }, {  42, -41 }, {  48, -47 },
        {  39, -32 }, {  46, -40 }, {  52, -51 }, {  46, -41 },
        {  52, -39 }, {  43, -19 }, {  32,  11 }, {  61, -55 },
        {  56, -46 }, {  62, -50 }, {  81, -67 }, {  45, -20 },
        {  35,  -2 }, {  28,  15 }, {  34,   1 }, {  39,   1 },
        {  30,  17 }, {  20,  38 }, {  18,  45 }, {  15,  54 },
        {   0,  79 }, {  36, -16 }, {  37, -14 }, {  37, -17 },
        {  32,   1 }, {  34,  15 }, {  29,  15 }, {  24,  25 },
        {  34,  22 }, {  31,  16 }, {  35,  18 }, {  31,  28 },
        {  33,  41 }, {  36,  28 }, {  27,  47 }, {  21,  62 },
        {  17, -13 }, {  16,  -9 }, {  17, -12 }, {  27, -21 },
        {  37, -30 }, {  41, -40 }, {  42, -41 }, {  48, -47 },
        {  39, -32 }, {  46, -40 }, {  52, -51 }, {  46, -41 },
        {  52, -39 }, {  43, -19 }, {  32,  11 }, {  61, -55 },
        {  56, -46 }, {  62, -50 }, {  81, -67 }, {  45, -20 },
        {  35,  -2 }, {  28,  15 }, {  34,   1 }, {  39,   1 },
        {  30,  17 }, {  20,  38 }, {  18,  45 }, {  15,  54 },
        {   0,  79 }, {  36, -16 }, {  37, -14 }, {  37, -17 },
        {  32,   1 }, {  34,  15 }, {  29,  15 }, {  24,  25 },
        {  34,  22 }, {  31,  16 }, {  35,  18 }, {  31,  28 },
        {  33,  41 }, {  36,  28 }, {  27,  47 }, {  21,  62 },
        { -24, 115 }, { -22,  82 }, {  -9,  62 }, {   0,  53 },
        {   0,  59 }, { -14,  85 }, { -13,  89 }, { -13,  94 },
        { -11,  92 }, { -29, 127 }, { -21, 100 }, { -14,  57 },
        { -12,  67 }, { -11,  71 }, { -10,  77 }, { -21,  85 },
        { -16,  88 }, { -23, 104 }, { -15,  98 }, { -37, 127 },
        { -10,  82 }, {  -8,  48 }, {  -8,  61 }, {  -8,  66 },
        {  -7,  70 }, { -14,  75 }, { -10,  79 }, {  -9,  83 },
        { -12,  92 }, { -18, 108 }, { -24, 115 }, { -22,  82 },
        {  -9,  62 }, {   0,  53 }, {   0,  59 }, { -14,  85 },
        { -13,  89 }, { -13,  94 }, { -11,  92 }, { -29, 127 },
        { -21, 100 }, { -14,  57 }, { -12,  67 }, { -11,  71 },
        { -10,  77 }, { -21,  85 }, { -16,  88 }, { -23, 104 },
        { -15,  98 }, { -37, 127 }, { -10,  82 }, {  -8,  48 },
        {  -8,  61 }, {  -8,  66 }, {  -7,  70 }, { -14,  75 },
        { -10,  79 }, {  -9,  83 }, { -12,  92 }, { -18, 108 },
        {  -5,  79 }, { -11, 104 }, { -11,  91 }, { -30, 127 },
        {  -5,  79 }, { -11, 104 }, { -11,  91 }, { -30, 127 },
        {  -5,  79 }, { -11, 104 }, { -11,  91 }, { -30, 127 }
1260 1261 1262 1263 1264
    }
};

void ff_h264_init_cabac_states(H264Context *h) {
    int i;
1265
    const int8_t (*tab)[2];
1266
    const int slice_qp = av_clip(h->qscale - 6*(h->sps.bit_depth_luma-8), 0, 51);
1267

1268
    if( h->slice_type_nos == AV_PICTURE_TYPE_I ) tab = cabac_context_init_I;
1269
    else                                 tab = cabac_context_init_PB[h->cabac_init_idc];
1270 1271

    /* calculate pre-state */
1272
    for( i= 0; i < 1024; i++ ) {
1273
        int pre = 2*(((tab[i][0] * slice_qp) >>4 ) + tab[i][1]) - 127;
1274 1275 1276 1277 1278 1279

        pre^= pre>>31;
        if(pre > 124)
            pre= 124 + (pre&1);

        h->cabac_state[i] =  pre;
1280 1281 1282 1283
    }
}

static int decode_cabac_field_decoding_flag(H264Context *h) {
1284
    const long mbb_xy = h->mb_xy - 2L*h->mb_stride;
1285

1286
    unsigned long ctx = 0;
1287

1288 1289
    ctx += h->mb_field_decoding_flag & !!h->mb_x; //for FMO:(s->current_picture.mb_type[mba_xy] >> 7) & (h->slice_table[mba_xy] == h->slice_num);
    ctx += (h->cur_pic.mb_type[mbb_xy] >> 7) & (h->slice_table[mbb_xy] == h->slice_num);
1290

1291
    return get_cabac_noinline( &h->cabac, &(h->cabac_state+70)[ctx] );
1292 1293 1294 1295 1296 1297 1298 1299
}

static int decode_cabac_intra_mb_type(H264Context *h, int ctx_base, int intra_slice) {
    uint8_t *state= &h->cabac_state[ctx_base];
    int mb_type;

    if(intra_slice){
        int ctx=0;
1300
        if( h->left_type[LTOP] & (MB_TYPE_INTRA16x16|MB_TYPE_INTRA_PCM))
1301
            ctx++;
1302
        if( h->top_type        & (MB_TYPE_INTRA16x16|MB_TYPE_INTRA_PCM))
1303 1304 1305 1306 1307
            ctx++;
        if( get_cabac_noinline( &h->cabac, &state[ctx] ) == 0 )
            return 0;   /* I4x4 */
        state += 2;
    }else{
1308
        if( get_cabac_noinline( &h->cabac, state ) == 0 )
1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327
            return 0;   /* I4x4 */
    }

    if( get_cabac_terminate( &h->cabac ) )
        return 25;  /* PCM */

    mb_type = 1; /* I16x16 */
    mb_type += 12 * get_cabac_noinline( &h->cabac, &state[1] ); /* cbp_luma != 0 */
    if( get_cabac_noinline( &h->cabac, &state[2] ) ) /* cbp_chroma */
        mb_type += 4 + 4 * get_cabac_noinline( &h->cabac, &state[2+intra_slice] );
    mb_type += 2 * get_cabac_noinline( &h->cabac, &state[3+intra_slice] );
    mb_type += 1 * get_cabac_noinline( &h->cabac, &state[3+2*intra_slice] );
    return mb_type;
}

static int decode_cabac_mb_skip( H264Context *h, int mb_x, int mb_y ) {
    int mba_xy, mbb_xy;
    int ctx = 0;

1328
    if (FRAME_MBAFF(h)) { //FIXME merge with the stuff in fill_caches?
1329
        int mb_xy = mb_x + (mb_y&~1)*h->mb_stride;
1330 1331 1332
        mba_xy = mb_xy - 1;
        if( (mb_y&1)
            && h->slice_table[mba_xy] == h->slice_num
1333
            && MB_FIELD(h) == !!IS_INTERLACED( h->cur_pic.mb_type[mba_xy] ) )
1334
            mba_xy += h->mb_stride;
1335
        if (MB_FIELD(h)) {
1336
            mbb_xy = mb_xy - h->mb_stride;
1337 1338
            if( !(mb_y&1)
                && h->slice_table[mbb_xy] == h->slice_num
1339
                && IS_INTERLACED( h->cur_pic.mb_type[mbb_xy] ) )
1340
                mbb_xy -= h->mb_stride;
1341
        }else
1342
            mbb_xy = mb_x + (mb_y-1)*h->mb_stride;
1343 1344 1345
    }else{
        int mb_xy = h->mb_xy;
        mba_xy = mb_xy - 1;
1346
        mbb_xy = mb_xy - (h->mb_stride << FIELD_PICTURE(h));
1347 1348
    }

1349
    if( h->slice_table[mba_xy] == h->slice_num && !IS_SKIP(h->cur_pic.mb_type[mba_xy] ))
1350
        ctx++;
1351
    if( h->slice_table[mbb_xy] == h->slice_num && !IS_SKIP(h->cur_pic.mb_type[mbb_xy] ))
1352 1353
        ctx++;

1354
    if( h->slice_type_nos == AV_PICTURE_TYPE_B )
1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368
        ctx += 13;
    return get_cabac_noinline( &h->cabac, &h->cabac_state[11+ctx] );
}

static int decode_cabac_mb_intra4x4_pred_mode( H264Context *h, int pred_mode ) {
    int mode = 0;

    if( get_cabac( &h->cabac, &h->cabac_state[68] ) )
        return pred_mode;

    mode += 1 * get_cabac( &h->cabac, &h->cabac_state[69] );
    mode += 2 * get_cabac( &h->cabac, &h->cabac_state[69] );
    mode += 4 * get_cabac( &h->cabac, &h->cabac_state[69] );

1369
    return mode + ( mode >= pred_mode );
1370 1371 1372 1373 1374 1375 1376 1377 1378
}

static int decode_cabac_mb_chroma_pre_mode( H264Context *h) {
    const int mba_xy = h->left_mb_xy[0];
    const int mbb_xy = h->top_mb_xy;

    int ctx = 0;

    /* No need to test for IS_INTRA4x4 and IS_INTRA16x16, as we set chroma_pred_mode_table to 0 */
1379
    if( h->left_type[LTOP] && h->chroma_pred_mode_table[mba_xy] != 0 )
1380 1381
        ctx++;

1382
    if( h->top_type        && h->chroma_pred_mode_table[mbb_xy] != 0 )
1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398
        ctx++;

    if( get_cabac_noinline( &h->cabac, &h->cabac_state[64+ctx] ) == 0 )
        return 0;

    if( get_cabac_noinline( &h->cabac, &h->cabac_state[64+3] ) == 0 )
        return 1;
    if( get_cabac_noinline( &h->cabac, &h->cabac_state[64+3] ) == 0 )
        return 2;
    else
        return 3;
}

static int decode_cabac_mb_cbp_luma( H264Context *h) {
    int cbp_b, cbp_a, ctx, cbp = 0;

1399 1400
    cbp_a = h->left_cbp;
    cbp_b = h->top_cbp;
1401 1402

    ctx = !(cbp_a & 0x02) + 2 * !(cbp_b & 0x04);
1403
    cbp += get_cabac_noinline(&h->cabac, &h->cabac_state[73 + ctx]);
1404
    ctx = !(cbp   & 0x01) + 2 * !(cbp_b & 0x08);
1405
    cbp += get_cabac_noinline(&h->cabac, &h->cabac_state[73 + ctx]) << 1;
1406
    ctx = !(cbp_a & 0x08) + 2 * !(cbp   & 0x01);
1407
    cbp += get_cabac_noinline(&h->cabac, &h->cabac_state[73 + ctx]) << 2;
1408
    ctx = !(cbp   & 0x04) + 2 * !(cbp   & 0x02);
1409
    cbp += get_cabac_noinline(&h->cabac, &h->cabac_state[73 + ctx]) << 3;
1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462
    return cbp;
}
static int decode_cabac_mb_cbp_chroma( H264Context *h) {
    int ctx;
    int cbp_a, cbp_b;

    cbp_a = (h->left_cbp>>4)&0x03;
    cbp_b = (h-> top_cbp>>4)&0x03;

    ctx = 0;
    if( cbp_a > 0 ) ctx++;
    if( cbp_b > 0 ) ctx += 2;
    if( get_cabac_noinline( &h->cabac, &h->cabac_state[77 + ctx] ) == 0 )
        return 0;

    ctx = 4;
    if( cbp_a == 2 ) ctx++;
    if( cbp_b == 2 ) ctx += 2;
    return 1 + get_cabac_noinline( &h->cabac, &h->cabac_state[77 + ctx] );
}

static int decode_cabac_p_mb_sub_type( H264Context *h ) {
    if( get_cabac( &h->cabac, &h->cabac_state[21] ) )
        return 0;   /* 8x8 */
    if( !get_cabac( &h->cabac, &h->cabac_state[22] ) )
        return 1;   /* 8x4 */
    if( get_cabac( &h->cabac, &h->cabac_state[23] ) )
        return 2;   /* 4x8 */
    return 3;       /* 4x4 */
}
static int decode_cabac_b_mb_sub_type( H264Context *h ) {
    int type;
    if( !get_cabac( &h->cabac, &h->cabac_state[36] ) )
        return 0;   /* B_Direct_8x8 */
    if( !get_cabac( &h->cabac, &h->cabac_state[37] ) )
        return 1 + get_cabac( &h->cabac, &h->cabac_state[39] ); /* B_L0_8x8, B_L1_8x8 */
    type = 3;
    if( get_cabac( &h->cabac, &h->cabac_state[38] ) ) {
        if( get_cabac( &h->cabac, &h->cabac_state[39] ) )
            return 11 + get_cabac( &h->cabac, &h->cabac_state[39] ); /* B_L1_4x4, B_Bi_4x4 */
        type += 4;
    }
    type += 2*get_cabac( &h->cabac, &h->cabac_state[39] );
    type +=   get_cabac( &h->cabac, &h->cabac_state[39] );
    return type;
}

static int decode_cabac_mb_ref( H264Context *h, int list, int n ) {
    int refa = h->ref_cache[list][scan8[n] - 1];
    int refb = h->ref_cache[list][scan8[n] - 8];
    int ref  = 0;
    int ctx  = 0;

1463
    if( h->slice_type_nos == AV_PICTURE_TYPE_B) {
1464
        if( refa > 0 && !(h->direct_cache[scan8[n] - 1]&(MB_TYPE_DIRECT2>>1)) )
1465
            ctx++;
1466
        if( refb > 0 && !(h->direct_cache[scan8[n] - 8]&(MB_TYPE_DIRECT2>>1)) )
1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484
            ctx += 2;
    } else {
        if( refa > 0 )
            ctx++;
        if( refb > 0 )
            ctx += 2;
    }

    while( get_cabac( &h->cabac, &h->cabac_state[54+ctx] ) ) {
        ref++;
        ctx = (ctx>>2)+4;
        if(ref >= 32 /*h->ref_list[list]*/){
            return -1;
        }
    }
    return ref;
}

1485
static int decode_cabac_mb_mvd( H264Context *h, int ctxbase, int amvd, int *mvda) {
1486 1487
    int mvd;

1488 1489
    if(!get_cabac(&h->cabac, &h->cabac_state[ctxbase+((amvd-3)>>(INT_BIT-1))+((amvd-33)>>(INT_BIT-1))+2])){
//    if(!get_cabac(&h->cabac, &h->cabac_state[ctxbase+(amvd>2)+(amvd>32)])){
1490
        *mvda= 0;
1491
        return 0;
1492
    }
1493 1494

    mvd= 1;
1495 1496 1497 1498
    ctxbase+= 3;
    while( mvd < 9 && get_cabac( &h->cabac, &h->cabac_state[ctxbase] ) ) {
        if( mvd < 4 )
            ctxbase++;
1499 1500 1501 1502 1503 1504 1505 1506 1507
        mvd++;
    }

    if( mvd >= 9 ) {
        int k = 3;
        while( get_cabac_bypass( &h->cabac ) ) {
            mvd += 1 << k;
            k++;
            if(k>24){
1508
                av_log(h->avctx, AV_LOG_ERROR, "overflow in decode_cabac_mb_mvd\n");
1509 1510 1511 1512
                return INT_MIN;
            }
        }
        while( k-- ) {
1513
            mvd += get_cabac_bypass( &h->cabac )<<k;
1514
        }
1515 1516 1517
        *mvda=mvd < 70 ? mvd : 70;
    }else
        *mvda=mvd;
1518 1519 1520
    return get_cabac_bypass_sign( &h->cabac, -mvd );
}

1521 1522 1523 1524 1525 1526 1527
#define DECODE_CABAC_MB_MVD( h,  list,  n )\
{\
    int amvd0 = h->mvd_cache[list][scan8[n] - 1][0] +\
                h->mvd_cache[list][scan8[n] - 8][0];\
    int amvd1 = h->mvd_cache[list][scan8[n] - 1][1] +\
                h->mvd_cache[list][scan8[n] - 8][1];\
\
1528 1529
    mx += decode_cabac_mb_mvd( h, 40, amvd0, &mpx );\
    my += decode_cabac_mb_mvd( h, 47, amvd1, &mpy );\
1530 1531
}

1532
static av_always_inline int get_cabac_cbf_ctx( H264Context *h, int cat, int idx, int max_coeff, int is_dc ) {
1533 1534
    int nza, nzb;
    int ctx = 0;
1535
    static const uint16_t base_ctx[14] = {85,89,93,97,101,1012,460,464,468,1016,472,476,480,1020};
1536 1537

    if( is_dc ) {
1538
        if( cat == 3 ) {
1539
            idx -= CHROMA_DC_BLOCK_INDEX;
1540 1541
            nza = (h->left_cbp>>(6+idx))&0x01;
            nzb = (h-> top_cbp>>(6+idx))&0x01;
1542 1543 1544 1545
        } else {
            idx -= LUMA_DC_BLOCK_INDEX;
            nza = h->left_cbp&(0x100<<idx);
            nzb = h-> top_cbp&(0x100<<idx);
1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557
        }
    } else {
        nza = h->non_zero_count_cache[scan8[idx] - 1];
        nzb = h->non_zero_count_cache[scan8[idx] - 8];
    }

    if( nza > 0 )
        ctx++;

    if( nzb > 0 )
        ctx += 2;

1558
    return base_ctx[cat] + ctx;
1559 1560
}

1561
static av_always_inline void
Diego Biurrun's avatar
Diego Biurrun committed
1562
decode_cabac_residual_internal(H264Context *h, int16_t *block,
1563 1564 1565 1566
                               int cat, int n, const uint8_t *scantable,
                               const uint32_t *qmul, int max_coeff,
                               int is_dc, int chroma422)
{
1567 1568 1569
    static const int significant_coeff_flag_offset[2][14] = {
      { 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 },
      { 277+0, 277+15, 277+29, 277+44, 277+47, 436, 776+0, 776+15, 776+29, 675, 820+0, 820+15, 820+29, 733 }
1570
    };
1571 1572 1573
    static const int last_coeff_flag_offset[2][14] = {
      { 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 },
      { 338+0, 338+15, 338+29, 338+44, 338+47, 451, 864+0, 864+15, 864+29, 699, 908+0, 908+15, 908+29, 757 }
1574
    };
1575 1576
    static const int coeff_abs_level_m1_offset[14] = {
        227+0, 227+10, 227+20, 227+30, 227+39, 426, 952+0, 952+10, 952+20, 708, 982+0, 982+10, 982+20, 766
1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587
    };
    static const uint8_t significant_coeff_flag_offset_8x8[2][63] = {
      { 0, 1, 2, 3, 4, 5, 5, 4, 4, 3, 3, 4, 4, 4, 5, 5,
        4, 4, 4, 4, 3, 3, 6, 7, 7, 7, 8, 9,10, 9, 8, 7,
        7, 6,11,12,13,11, 6, 7, 8, 9,14,10, 9, 8, 6,11,
       12,13,11, 6, 9,14,10, 9,11,12,13,11,14,10,12 },
      { 0, 1, 1, 2, 2, 3, 3, 4, 5, 6, 7, 7, 7, 8, 4, 5,
        6, 9,10,10, 8,11,12,11, 9, 9,10,10, 8,11,12,11,
        9, 9,10,10, 8,11,12,11, 9, 9,10,10, 8,13,13, 9,
        9,10,10, 8,13,13, 9, 9,10,10,14,14,14,14,14 }
    };
1588
    static const uint8_t sig_coeff_offset_dc[7] = { 0, 0, 1, 1, 2, 2, 2 };
1589 1590 1591 1592 1593
    /* node ctx: 0..3: abslevel1 (with abslevelgt1 == 0).
     * 4..7: abslevelgt1 + 3 (and abslevel1 doesn't matter).
     * map node ctx => cabac ctx for level=1 */
    static const uint8_t coeff_abs_level1_ctx[8] = { 1, 2, 3, 4, 0, 0, 0, 0 };
    /* map node ctx => cabac ctx for level>1 */
1594 1595 1596 1597
    static const uint8_t coeff_abs_levelgt1_ctx[2][8] = {
        { 5, 5, 5, 5, 6, 7, 8, 9 },
        { 5, 5, 5, 5, 6, 7, 8, 8 }, // 422/dc case
    };
1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623
    static const uint8_t coeff_abs_level_transition[2][8] = {
    /* update node ctx after decoding a level=1 */
        { 1, 2, 3, 3, 4, 5, 6, 7 },
    /* update node ctx after decoding a level>1 */
        { 4, 4, 4, 4, 5, 6, 7, 7 }
    };

    int index[64];

    int av_unused last;
    int coeff_count = 0;
    int node_ctx = 0;

    uint8_t *significant_coeff_ctx_base;
    uint8_t *last_coeff_ctx_base;
    uint8_t *abs_level_m1_ctx_base;

#if !ARCH_X86
#define CABAC_ON_STACK
#endif
#ifdef CABAC_ON_STACK
#define CC &cc
    CABACContext cc;
    cc.range     = h->cabac.range;
    cc.low       = h->cabac.low;
    cc.bytestream= h->cabac.bytestream;
1624
#if !UNCHECKED_BITSTREAM_READER || ARCH_AARCH64
1625 1626
    cc.bytestream_end = h->cabac.bytestream_end;
#endif
1627 1628 1629 1630 1631
#else
#define CC &h->cabac
#endif

    significant_coeff_ctx_base = h->cabac_state
1632
        + significant_coeff_flag_offset[MB_FIELD(h)][cat];
1633
    last_coeff_ctx_base = h->cabac_state
1634
        + last_coeff_flag_offset[MB_FIELD(h)][cat];
1635 1636 1637
    abs_level_m1_ctx_base = h->cabac_state
        + coeff_abs_level_m1_offset[cat];

1638
    if( !is_dc && max_coeff == 64 ) {
1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653
#define DECODE_SIGNIFICANCE( coefs, sig_off, last_off ) \
        for(last= 0; last < coefs; last++) { \
            uint8_t *sig_ctx = significant_coeff_ctx_base + sig_off; \
            if( get_cabac( CC, sig_ctx )) { \
                uint8_t *last_ctx = last_coeff_ctx_base + last_off; \
                index[coeff_count++] = last; \
                if( get_cabac( CC, last_ctx ) ) { \
                    last= max_coeff; \
                    break; \
                } \
            } \
        }\
        if( last == max_coeff -1 ) {\
            index[coeff_count++] = last;\
        }
1654
        const uint8_t *sig_off = significant_coeff_flag_offset_8x8[MB_FIELD(h)];
1655 1656
#ifdef decode_significance
        coeff_count = decode_significance_8x8(CC, significant_coeff_ctx_base, index,
1657
                                                 last_coeff_ctx_base, sig_off);
1658
    } else {
1659
        if (is_dc && chroma422) { // dc 422
1660 1661
            DECODE_SIGNIFICANCE(7, sig_coeff_offset_dc[last], sig_coeff_offset_dc[last]);
        } else {
1662
            coeff_count = decode_significance(CC, max_coeff, significant_coeff_ctx_base, index,
1663 1664
                                                 last_coeff_ctx_base-significant_coeff_ctx_base);
        }
1665
#else
1666
        DECODE_SIGNIFICANCE( 63, sig_off[last], ff_h264_last_coeff_flag_offset_8x8[last] );
1667
    } else {
1668
        if (is_dc && chroma422) { // dc 422
1669 1670 1671 1672
            DECODE_SIGNIFICANCE(7, sig_coeff_offset_dc[last], sig_coeff_offset_dc[last]);
        } else {
            DECODE_SIGNIFICANCE(max_coeff - 1, last, last);
        }
1673 1674
#endif
    }
1675
    av_assert2(coeff_count > 0);
1676 1677

    if( is_dc ) {
1678
        if( cat == 3 )
1679
            h->cbp_table[h->mb_xy] |= 0x40 << (n - CHROMA_DC_BLOCK_INDEX);
1680 1681
        else
            h->cbp_table[h->mb_xy] |= 0x100 << (n - LUMA_DC_BLOCK_INDEX);
1682
        h->non_zero_count_cache[scan8[n]] = coeff_count;
1683
    } else {
1684
        if( max_coeff == 64 )
1685 1686
            fill_rectangle(&h->non_zero_count_cache[scan8[n]], 2, 2, 8, coeff_count, 1);
        else {
1687
            av_assert2( cat == 1 || cat ==  2 || cat ==  4 || cat == 7 || cat == 8 || cat == 11 || cat == 12 );
1688 1689 1690 1691
            h->non_zero_count_cache[scan8[n]] = coeff_count;
        }
    }

1692
#define STORE_BLOCK(type) \
1693 1694 1695 1696 1697
    do { \
        uint8_t *ctx = coeff_abs_level1_ctx[node_ctx] + abs_level_m1_ctx_base; \
 \
        int j= scantable[index[--coeff_count]]; \
 \
1698 1699 1700 1701 1702 1703 1704 1705 1706
        if( get_cabac( CC, ctx ) == 0 ) { \
            node_ctx = coeff_abs_level_transition[0][node_ctx]; \
            if( is_dc ) { \
                ((type*)block)[j] = get_cabac_bypass_sign( CC, -1); \
            }else{ \
                ((type*)block)[j] = (get_cabac_bypass_sign( CC, -qmul[j]) + 32) >> 6; \
            } \
        } else { \
            int coeff_abs = 2; \
1707
            ctx = coeff_abs_levelgt1_ctx[is_dc && chroma422][node_ctx] + abs_level_m1_ctx_base; \
1708 1709 1710 1711 1712 1713 1714 1715
            node_ctx = coeff_abs_level_transition[1][node_ctx]; \
\
            while( coeff_abs < 15 && get_cabac( CC, ctx ) ) { \
                coeff_abs++; \
            } \
\
            if( coeff_abs >= 15 ) { \
                int j = 0; \
1716
                while(get_cabac_bypass( CC ) && j<30) { \
1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731
                    j++; \
                } \
\
                coeff_abs=1; \
                while( j-- ) { \
                    coeff_abs += coeff_abs + get_cabac_bypass( CC ); \
                } \
                coeff_abs+= 14; \
            } \
\
            if( is_dc ) { \
                ((type*)block)[j] = get_cabac_bypass_sign( CC, -coeff_abs ); \
            }else{ \
                ((type*)block)[j] = ((int)(get_cabac_bypass_sign( CC, -coeff_abs ) * qmul[j] + 32)) >> 6; \
            } \
1732 1733
        } \
    } while ( coeff_count );
1734

1735 1736 1737 1738 1739
    if (h->pixel_shift) {
        STORE_BLOCK(int32_t)
    } else {
        STORE_BLOCK(int16_t)
    }
1740 1741 1742 1743 1744 1745 1746 1747
#ifdef CABAC_ON_STACK
            h->cabac.range     = cc.range     ;
            h->cabac.low       = cc.low       ;
            h->cabac.bytestream= cc.bytestream;
#endif

}

1748 1749 1750 1751 1752
static av_noinline void decode_cabac_residual_dc_internal(H264Context *h,
                                                          int16_t *block,
                                                          int cat, int n,
                                                          const uint8_t *scantable,
                                                          int max_coeff)
Diego Biurrun's avatar
Diego Biurrun committed
1753
{
1754 1755 1756
    decode_cabac_residual_internal(h, block, cat, n, scantable, NULL, max_coeff, 1, 0);
}

1757 1758 1759 1760 1761
static av_noinline void decode_cabac_residual_dc_internal_422(H264Context *h,
                                                              int16_t *block,
                                                              int cat, int n,
                                                              const uint8_t *scantable,
                                                              int max_coeff)
1762 1763
{
    decode_cabac_residual_internal(h, block, cat, n, scantable, NULL, max_coeff, 1, 1);
1764 1765
}

1766 1767 1768 1769 1770 1771
static av_noinline void decode_cabac_residual_nondc_internal(H264Context *h,
                                                             int16_t *block,
                                                             int cat, int n,
                                                             const uint8_t *scantable,
                                                             const uint32_t *qmul,
                                                             int max_coeff)
Diego Biurrun's avatar
Diego Biurrun committed
1772
{
1773
    decode_cabac_residual_internal(h, block, cat, n, scantable, qmul, max_coeff, 0, 0);
1774 1775
}

1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787
/* cat: 0-> DC 16x16  n = 0
 *      1-> AC 16x16  n = luma4x4idx
 *      2-> Luma4x4   n = luma4x4idx
 *      3-> DC Chroma n = iCbCr
 *      4-> AC Chroma n = 16 + 4 * iCbCr + chroma4x4idx
 *      5-> Luma8x8   n = 4 * luma8x8idx */

/* Partially inline the CABAC residual decode: inline the coded block flag.
 * This has very little impact on binary size and improves performance
 * because it allows improved constant propagation into get_cabac_cbf_ctx,
 * as well as because most blocks have zero CBFs. */

Diego Biurrun's avatar
Diego Biurrun committed
1788 1789 1790 1791 1792 1793
static av_always_inline void decode_cabac_residual_dc(H264Context *h,
                                                      int16_t *block,
                                                      int cat, int n,
                                                      const uint8_t *scantable,
                                                      int max_coeff)
{
1794
    /* read coded block flag */
1795
    if( get_cabac( &h->cabac, &h->cabac_state[get_cabac_cbf_ctx( h, cat, n, max_coeff, 1 ) ] ) == 0 ) {
1796 1797 1798 1799 1800 1801
        h->non_zero_count_cache[scan8[n]] = 0;
        return;
    }
    decode_cabac_residual_dc_internal( h, block, cat, n, scantable, max_coeff );
}

1802
static av_always_inline void
Diego Biurrun's avatar
Diego Biurrun committed
1803
decode_cabac_residual_dc_422(H264Context *h, int16_t *block,
1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814
                             int cat, int n, const uint8_t *scantable,
                             int max_coeff)
{
    /* read coded block flag */
    if (get_cabac(&h->cabac, &h->cabac_state[get_cabac_cbf_ctx(h, cat, n, max_coeff, 1)]) == 0) {
        h->non_zero_count_cache[scan8[n]] = 0;
        return;
    }
    decode_cabac_residual_dc_internal_422(h, block, cat, n, scantable, max_coeff);
}

Diego Biurrun's avatar
Diego Biurrun committed
1815 1816 1817 1818 1819 1820 1821
static av_always_inline void decode_cabac_residual_nondc(H264Context *h,
                                                         int16_t *block,
                                                         int cat, int n,
                                                         const uint8_t *scantable,
                                                         const uint32_t *qmul,
                                                         int max_coeff)
{
1822
    /* read coded block flag */
1823
    if( (cat != 5 || CHROMA444(h)) && get_cabac( &h->cabac, &h->cabac_state[get_cabac_cbf_ctx( h, cat, n, max_coeff, 0 ) ] ) == 0 ) {
1824 1825 1826 1827 1828
        if( max_coeff == 64 ) {
            fill_rectangle(&h->non_zero_count_cache[scan8[n]], 2, 2, 8, 0, 1);
        } else {
            h->non_zero_count_cache[scan8[n]] = 0;
        }
1829 1830 1831 1832 1833
        return;
    }
    decode_cabac_residual_nondc_internal( h, block, cat, n, scantable, qmul, max_coeff );
}

1834 1835 1836 1837 1838
static av_always_inline void decode_cabac_luma_residual( H264Context *h, const uint8_t *scan, const uint8_t *scan8x8, int pixel_shift, int mb_type, int cbp, int p )
{
    static const uint8_t ctx_cat[4][3] = {{0,6,10},{1,7,11},{2,8,12},{5,9,13}};
    const uint32_t *qmul;
    int i8x8, i4x4;
1839
    int qscale = p == 0 ? h->qscale : h->chroma_qp[p-1];
1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873
    if( IS_INTRA16x16( mb_type ) ) {
        AV_ZERO128(h->mb_luma_dc[p]+0);
        AV_ZERO128(h->mb_luma_dc[p]+8);
        AV_ZERO128(h->mb_luma_dc[p]+16);
        AV_ZERO128(h->mb_luma_dc[p]+24);
        decode_cabac_residual_dc(h, h->mb_luma_dc[p], ctx_cat[0][p], LUMA_DC_BLOCK_INDEX+p, scan, 16);

        if( cbp&15 ) {
            qmul = h->dequant4_coeff[p][qscale];
            for( i4x4 = 0; i4x4 < 16; i4x4++ ) {
                const int index = 16*p + i4x4;
                decode_cabac_residual_nondc(h, h->mb + (16*index << pixel_shift), ctx_cat[1][p], index, scan + 1, qmul, 15);
            }
        } else {
            fill_rectangle(&h->non_zero_count_cache[scan8[16*p]], 4, 4, 8, 0, 1);
        }
    } else {
        int cqm = (IS_INTRA( mb_type ) ? 0:3) + p;
        for( i8x8 = 0; i8x8 < 4; i8x8++ ) {
            if( cbp & (1<<i8x8) ) {
                if( IS_8x8DCT(mb_type) ) {
                    const int index = 16*p + 4*i8x8;
                    decode_cabac_residual_nondc(h, h->mb + (16*index << pixel_shift), ctx_cat[3][p], index,
                                                scan8x8, h->dequant8_coeff[cqm][qscale], 64);
                } else {
                    qmul = h->dequant4_coeff[cqm][qscale];
                    for( i4x4 = 0; i4x4 < 4; i4x4++ ) {
                        const int index = 16*p + 4*i8x8 + i4x4;
//START_TIMER
                        decode_cabac_residual_nondc(h, h->mb + (16*index << pixel_shift), ctx_cat[2][p], index, scan, qmul, 16);
//STOP_TIMER("decode_residual")
                    }
                }
            } else {
1874
                fill_rectangle(&h->non_zero_count_cache[scan8[4*i8x8+16*p]], 2, 2, 8, 0, 1);
1875 1876 1877 1878 1879
            }
        }
    }
}

1880
/**
1881
 * Decode a macroblock.
1882
 * @return 0 if OK, ER_AC_ERROR / ER_DC_ERROR / ER_MV_ERROR if an error is noticed
1883 1884 1885 1886 1887
 */
int ff_h264_decode_mb_cabac(H264Context *h) {
    int mb_xy;
    int mb_type, partition_count, cbp = 0;
    int dct8x8_allowed= h->pps.transform_8x8_mode;
1888
    int decode_chroma = h->sps.chroma_format_idc == 1 || h->sps.chroma_format_idc == 2;
1889
    const int pixel_shift = h->pixel_shift;
1890
    unsigned local_ref_count[2];
1891

1892
    mb_xy = h->mb_xy = h->mb_x + h->mb_y*h->mb_stride;
1893

1894
    tprintf(h->avctx, "pic:%d mb:%d/%d\n", h->frame_num, h->mb_x, h->mb_y);
1895
    if( h->slice_type_nos != AV_PICTURE_TYPE_I ) {
1896 1897
        int skip;
        /* a skipped mb needs the aff flag from the following mb */
1898
        if (FRAME_MBAFF(h) && (h->mb_y & 1) == 1 && h->prev_mb_skipped)
1899 1900
            skip = h->next_mb_skipped;
        else
1901
            skip = decode_cabac_mb_skip( h, h->mb_x, h->mb_y );
1902 1903
        /* read skip flags */
        if( skip ) {
1904
            if (FRAME_MBAFF(h) && (h->mb_y & 1) == 0) {
1905
                h->cur_pic.mb_type[mb_xy] = MB_TYPE_SKIP;
1906
                h->next_mb_skipped = decode_cabac_mb_skip( h, h->mb_x, h->mb_y+1 );
1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920
                if(!h->next_mb_skipped)
                    h->mb_mbaff = h->mb_field_decoding_flag = decode_cabac_field_decoding_flag(h);
            }

            decode_mb_skip(h);

            h->cbp_table[mb_xy] = 0;
            h->chroma_pred_mode_table[mb_xy] = 0;
            h->last_qscale_diff = 0;

            return 0;

        }
    }
1921
    if (FRAME_MBAFF(h)) {
1922
        if( (h->mb_y&1) == 0 )
1923 1924 1925 1926 1927 1928
            h->mb_mbaff =
            h->mb_field_decoding_flag = decode_cabac_field_decoding_flag(h);
    }

    h->prev_mb_skipped = 0;

1929
    fill_decode_neighbors(h, -(MB_FIELD(h)));
1930

1931
    if( h->slice_type_nos == AV_PICTURE_TYPE_B ) {
1932
        int ctx = 0;
1933
        av_assert2(h->slice_type_nos == AV_PICTURE_TYPE_B);
1934

1935
        if( !IS_DIRECT( h->left_type[LTOP]-1 ) )
1936
            ctx++;
1937
        if( !IS_DIRECT( h->top_type-1 ) )
1938 1939 1940 1941 1942 1943
            ctx++;

        if( !get_cabac_noinline( &h->cabac, &h->cabac_state[27+ctx] ) ){
            mb_type= 0; /* B_Direct_16x16 */
        }else if( !get_cabac_noinline( &h->cabac, &h->cabac_state[27+3] ) ) {
            mb_type= 1 + get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] ); /* B_L[01]_16x16 */
1944
        }else{
1945 1946
            int bits;
            bits = get_cabac_noinline( &h->cabac, &h->cabac_state[27+4] ) << 3;
1947 1948 1949
            bits+= get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] ) << 2;
            bits+= get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] ) << 1;
            bits+= get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] );
1950 1951 1952 1953 1954 1955 1956 1957 1958 1959
            if( bits < 8 ){
                mb_type= bits + 3; /* B_Bi_16x16 through B_L1_L0_16x8 */
            }else if( bits == 13 ){
                mb_type= decode_cabac_intra_mb_type(h, 32, 0);
                goto decode_intra_mb;
            }else if( bits == 14 ){
                mb_type= 11; /* B_L1_L0_8x16 */
            }else if( bits == 15 ){
                mb_type= 22; /* B_8x8 */
            }else{
1960
                bits= ( bits<<1 ) + get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] );
1961 1962
                mb_type= bits - 4; /* B_L0_Bi_* through B_Bi_Bi_* */
            }
1963
        }
1964 1965
            partition_count= b_mb_type_info[mb_type].partition_count;
            mb_type=         b_mb_type_info[mb_type].type;
1966
    } else if( h->slice_type_nos == AV_PICTURE_TYPE_P ) {
1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983
        if( get_cabac_noinline( &h->cabac, &h->cabac_state[14] ) == 0 ) {
            /* P-type */
            if( get_cabac_noinline( &h->cabac, &h->cabac_state[15] ) == 0 ) {
                /* P_L0_D16x16, P_8x8 */
                mb_type= 3 * get_cabac_noinline( &h->cabac, &h->cabac_state[16] );
            } else {
                /* P_L0_D8x16, P_L0_D16x8 */
                mb_type= 2 - get_cabac_noinline( &h->cabac, &h->cabac_state[17] );
            }
            partition_count= p_mb_type_info[mb_type].partition_count;
            mb_type=         p_mb_type_info[mb_type].type;
        } else {
            mb_type= decode_cabac_intra_mb_type(h, 17, 0);
            goto decode_intra_mb;
        }
    } else {
        mb_type= decode_cabac_intra_mb_type(h, 3, 1);
1984
        if(h->slice_type == AV_PICTURE_TYPE_SI && mb_type)
1985
            mb_type--;
1986
        av_assert2(h->slice_type_nos == AV_PICTURE_TYPE_I);
1987 1988 1989 1990 1991 1992
decode_intra_mb:
        partition_count = 0;
        cbp= i_mb_type_info[mb_type].cbp;
        h->intra16x16_pred_mode= i_mb_type_info[mb_type].pred_mode;
        mb_type= i_mb_type_info[mb_type].type;
    }
1993
    if(MB_FIELD(h))
1994 1995 1996 1997 1998
        mb_type |= MB_TYPE_INTERLACED;

    h->slice_table[ mb_xy ]= h->slice_num;

    if(IS_INTRA_PCM(mb_type)) {
1999 2000
        const int mb_size = ff_h264_mb_sizes[h->sps.chroma_format_idc] *
                            h->sps.bit_depth_luma >> 3;
2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
        const uint8_t *ptr;

        // We assume these blocks are very rare so we do not optimize it.
        // FIXME The two following lines get the bitstream position in the cabac
        // decode, I think it should be done by a function in cabac.h (or cabac.c).
        ptr= h->cabac.bytestream;
        if(h->cabac.low&0x1) ptr--;
        if(CABAC_BITS==16){
            if(h->cabac.low&0x1FF) ptr--;
        }

        // The pixels are stored in the same order as levels in h->mb array.
2013 2014
        if ((int) (h->cabac.bytestream_end - ptr) < mb_size)
            return -1;
2015 2016
        h->intra_pcm_ptr = ptr;
        ptr += mb_size;
2017 2018 2019 2020

        ff_init_cabac_decoder(&h->cabac, ptr, h->cabac.bytestream_end - ptr);

        // All blocks are present
2021
        h->cbp_table[mb_xy] = 0xf7ef;
2022 2023
        h->chroma_pred_mode_table[mb_xy] = 0;
        // In deblocking, the quantizer is 0
2024
        h->cur_pic.qscale_table[mb_xy] = 0;
2025
        // All coeffs are present
2026
        memset(h->non_zero_count[mb_xy], 16, 48);
2027
        h->cur_pic.mb_type[mb_xy] = mb_type;
2028 2029 2030 2031
        h->last_qscale_diff = 0;
        return 0;
    }

2032 2033
    local_ref_count[0] = h->ref_count[0] << MB_MBAFF(h);
    local_ref_count[1] = h->ref_count[1] << MB_MBAFF(h);
2034

2035
    fill_decode_caches(h, mb_type);
2036 2037 2038 2039

    if( IS_INTRA( mb_type ) ) {
        int i, pred_mode;
        if( IS_INTRA4x4( mb_type ) ) {
2040
            if( dct8x8_allowed && get_cabac_noinline( &h->cabac, &h->cabac_state[399 + h->neighbor_transform_size] ) ) {
2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051
                mb_type |= MB_TYPE_8x8DCT;
                for( i = 0; i < 16; i+=4 ) {
                    int pred = pred_intra_mode( h, i );
                    int mode = decode_cabac_mb_intra4x4_pred_mode( h, pred );
                    fill_rectangle( &h->intra4x4_pred_mode_cache[ scan8[i] ], 2, 2, 8, mode, 1 );
                }
            } else {
                for( i = 0; i < 16; i++ ) {
                    int pred = pred_intra_mode( h, i );
                    h->intra4x4_pred_mode_cache[ scan8[i] ] = decode_cabac_mb_intra4x4_pred_mode( h, pred );

2052
                    av_dlog(h->avctx, "i4x4 pred=%d mode=%d\n", pred,
2053
                            h->intra4x4_pred_mode_cache[scan8[i]]);
2054 2055
                }
            }
2056
            write_back_intra_pred_mode(h);
2057 2058
            if( ff_h264_check_intra4x4_pred_mode(h) < 0 ) return -1;
        } else {
2059
            h->intra16x16_pred_mode= ff_h264_check_intra_pred_mode( h, h->intra16x16_pred_mode, 0 );
2060 2061
            if( h->intra16x16_pred_mode < 0 ) return -1;
        }
2062
        if(decode_chroma){
2063 2064 2065
            h->chroma_pred_mode_table[mb_xy] =
            pred_mode                        = decode_cabac_mb_chroma_pre_mode( h );

2066
            pred_mode= ff_h264_check_intra_pred_mode( h, pred_mode, 1 );
2067 2068
            if( pred_mode < 0 ) return -1;
            h->chroma_pred_mode= pred_mode;
2069 2070
        } else {
            h->chroma_pred_mode= DC_128_PRED8x8;
2071 2072 2073 2074
        }
    } else if( partition_count == 4 ) {
        int i, j, sub_partition_count[4], list, ref[2][4];

2075
        if( h->slice_type_nos == AV_PICTURE_TYPE_B ) {
2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088
            for( i = 0; i < 4; i++ ) {
                h->sub_mb_type[i] = decode_cabac_b_mb_sub_type( h );
                sub_partition_count[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
                h->sub_mb_type[i]=      b_sub_mb_type_info[ h->sub_mb_type[i] ].type;
            }
            if( IS_DIRECT(h->sub_mb_type[0] | h->sub_mb_type[1] |
                          h->sub_mb_type[2] | h->sub_mb_type[3]) ) {
                ff_h264_pred_direct_motion(h, &mb_type);
                h->ref_cache[0][scan8[4]] =
                h->ref_cache[1][scan8[4]] =
                h->ref_cache[0][scan8[12]] =
                h->ref_cache[1][scan8[12]] = PART_NOT_AVAILABLE;
                    for( i = 0; i < 4; i++ )
2089
                        fill_rectangle( &h->direct_cache[scan8[4*i]], 2, 2, 8, (h->sub_mb_type[i]>>1)&0xFF, 1 );
2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102
            }
        } else {
            for( i = 0; i < 4; i++ ) {
                h->sub_mb_type[i] = decode_cabac_p_mb_sub_type( h );
                sub_partition_count[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
                h->sub_mb_type[i]=      p_sub_mb_type_info[ h->sub_mb_type[i] ].type;
            }
        }

        for( list = 0; list < h->list_count; list++ ) {
                for( i = 0; i < 4; i++ ) {
                    if(IS_DIRECT(h->sub_mb_type[i])) continue;
                    if(IS_DIR(h->sub_mb_type[i], 0, list)){
2103
                        if (local_ref_count[list] > 1) {
2104
                            ref[list][i] = decode_cabac_mb_ref( h, list, 4*i );
2105
                            if (ref[list][i] >= (unsigned)local_ref_count[list]) {
2106
                                av_log(h->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref[list][i], local_ref_count[list]);
2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125
                                return -1;
                            }
                        }else
                            ref[list][i] = 0;
                    } else {
                        ref[list][i] = -1;
                    }
                                                       h->ref_cache[list][ scan8[4*i]+1 ]=
                    h->ref_cache[list][ scan8[4*i]+8 ]=h->ref_cache[list][ scan8[4*i]+9 ]= ref[list][i];
                }
        }

        if(dct8x8_allowed)
            dct8x8_allowed = get_dct8x8_allowed(h);

        for(list=0; list<h->list_count; list++){
            for(i=0; i<4; i++){
                h->ref_cache[list][ scan8[4*i]   ]=h->ref_cache[list][ scan8[4*i]+1 ];
                if(IS_DIRECT(h->sub_mb_type[i])){
2126
                    fill_rectangle(h->mvd_cache[list][scan8[4*i]], 2, 2, 8, 0, 2);
2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137
                    continue;
                }

                if(IS_DIR(h->sub_mb_type[i], 0, list) && !IS_DIRECT(h->sub_mb_type[i])){
                    const int sub_mb_type= h->sub_mb_type[i];
                    const int block_width= (sub_mb_type & (MB_TYPE_16x16|MB_TYPE_16x8)) ? 2 : 1;
                    for(j=0; j<sub_partition_count[i]; j++){
                        int mpx, mpy;
                        int mx, my;
                        const int index= 4*i + block_width*j;
                        int16_t (* mv_cache)[2]= &h->mv_cache[list][ scan8[index] ];
2138
                        uint8_t (* mvd_cache)[2]= &h->mvd_cache[list][ scan8[index] ];
2139
                        pred_motion(h, index, block_width, list, h->ref_cache[list][ scan8[index] ], &mx, &my);
2140
                        DECODE_CABAC_MB_MVD( h, list, index)
2141
                        tprintf(h->avctx, "final mv:%d %d\n", mx, my);
2142 2143 2144 2145 2146 2147 2148 2149

                        if(IS_SUB_8X8(sub_mb_type)){
                            mv_cache[ 1 ][0]=
                            mv_cache[ 8 ][0]= mv_cache[ 9 ][0]= mx;
                            mv_cache[ 1 ][1]=
                            mv_cache[ 8 ][1]= mv_cache[ 9 ][1]= my;

                            mvd_cache[ 1 ][0]=
2150
                            mvd_cache[ 8 ][0]= mvd_cache[ 9 ][0]= mpx;
2151
                            mvd_cache[ 1 ][1]=
2152
                            mvd_cache[ 8 ][1]= mvd_cache[ 9 ][1]= mpy;
2153 2154 2155 2156
                        }else if(IS_SUB_8X4(sub_mb_type)){
                            mv_cache[ 1 ][0]= mx;
                            mv_cache[ 1 ][1]= my;

2157 2158
                            mvd_cache[ 1 ][0]=  mpx;
                            mvd_cache[ 1 ][1]= mpy;
2159 2160 2161 2162
                        }else if(IS_SUB_4X8(sub_mb_type)){
                            mv_cache[ 8 ][0]= mx;
                            mv_cache[ 8 ][1]= my;

2163 2164
                            mvd_cache[ 8 ][0]= mpx;
                            mvd_cache[ 8 ][1]= mpy;
2165 2166 2167 2168
                        }
                        mv_cache[ 0 ][0]= mx;
                        mv_cache[ 0 ][1]= my;

2169 2170
                        mvd_cache[ 0 ][0]= mpx;
                        mvd_cache[ 0 ][1]= mpy;
2171 2172
                    }
                }else{
2173
                    fill_rectangle(h->mv_cache [list][ scan8[4*i] ], 2, 2, 8, 0, 4);
2174
                    fill_rectangle(h->mvd_cache[list][ scan8[4*i] ], 2, 2, 8, 0, 2);
2175 2176 2177 2178 2179
                }
            }
        }
    } else if( IS_DIRECT(mb_type) ) {
        ff_h264_pred_direct_motion(h, &mb_type);
2180 2181
        fill_rectangle(h->mvd_cache[0][scan8[0]], 4, 4, 8, 0, 2);
        fill_rectangle(h->mvd_cache[1][scan8[0]], 4, 4, 8, 0, 2);
2182 2183
        dct8x8_allowed &= h->sps.direct_8x8_inference_flag;
    } else {
2184
        int list, i;
2185 2186 2187 2188
        if(IS_16X16(mb_type)){
            for(list=0; list<h->list_count; list++){
                if(IS_DIR(mb_type, 0, list)){
                    int ref;
2189
                    if (local_ref_count[list] > 1) {
2190
                        ref= decode_cabac_mb_ref(h, list, 0);
2191
                        if (ref >= (unsigned)local_ref_count[list]) {
2192
                            av_log(h->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref, local_ref_count[list]);
2193 2194 2195 2196
                            return -1;
                        }
                    }else
                        ref=0;
2197
                    fill_rectangle(&h->ref_cache[list][ scan8[0] ], 4, 4, 8, ref, 1);
2198
                }
2199 2200 2201
            }
            for(list=0; list<h->list_count; list++){
                if(IS_DIR(mb_type, 0, list)){
2202 2203
                    int mx,my,mpx,mpy;
                    pred_motion(h, 0, 4, list, h->ref_cache[list][ scan8[0] ], &mx, &my);
2204
                    DECODE_CABAC_MB_MVD( h, list, 0)
2205
                    tprintf(h->avctx, "final mv:%d %d\n", mx, my);
2206

2207
                    fill_rectangle(h->mvd_cache[list][ scan8[0] ], 4, 4, 8, pack8to16(mpx,mpy), 2);
2208
                    fill_rectangle(h->mv_cache[list][ scan8[0] ], 4, 4, 8, pack16to32(mx,my), 4);
2209
                }
2210 2211 2212 2213 2214 2215 2216
            }
        }
        else if(IS_16X8(mb_type)){
            for(list=0; list<h->list_count; list++){
                    for(i=0; i<2; i++){
                        if(IS_DIR(mb_type, i, list)){
                            int ref;
2217
                            if (local_ref_count[list] > 1) {
2218
                                ref= decode_cabac_mb_ref( h, list, 8*i );
2219
                                if (ref >= (unsigned)local_ref_count[list]) {
2220
                                    av_log(h->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref, local_ref_count[list]);
2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232
                                    return -1;
                                }
                            }else
                                ref=0;
                            fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, ref, 1);
                        }else
                            fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, (LIST_NOT_USED&0xFF), 1);
                    }
            }
            for(list=0; list<h->list_count; list++){
                for(i=0; i<2; i++){
                    if(IS_DIR(mb_type, i, list)){
2233 2234
                        int mx,my,mpx,mpy;
                        pred_16x8_motion(h, 8*i, list, h->ref_cache[list][scan8[0] + 16*i], &mx, &my);
2235
                        DECODE_CABAC_MB_MVD( h, list, 8*i)
2236
                        tprintf(h->avctx, "final mv:%d %d\n", mx, my);
2237

2238
                        fill_rectangle(h->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack8to16(mpx,mpy), 2);
2239 2240
                        fill_rectangle(h->mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack16to32(mx,my), 4);
                    }else{
2241
                        fill_rectangle(h->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 2);
2242 2243 2244 2245 2246
                        fill_rectangle(h-> mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 4);
                    }
                }
            }
        }else{
2247
            av_assert2(IS_8X16(mb_type));
2248 2249 2250 2251
            for(list=0; list<h->list_count; list++){
                    for(i=0; i<2; i++){
                        if(IS_DIR(mb_type, i, list)){ //FIXME optimize
                            int ref;
2252
                            if (local_ref_count[list] > 1) {
2253
                                ref= decode_cabac_mb_ref( h, list, 4*i );
2254
                                if (ref >= (unsigned)local_ref_count[list]) {
2255
                                    av_log(h->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref, local_ref_count[list]);
2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267
                                    return -1;
                                }
                            }else
                                ref=0;
                            fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, ref, 1);
                        }else
                            fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, (LIST_NOT_USED&0xFF), 1);
                    }
            }
            for(list=0; list<h->list_count; list++){
                for(i=0; i<2; i++){
                    if(IS_DIR(mb_type, i, list)){
2268 2269
                        int mx,my,mpx,mpy;
                        pred_8x16_motion(h, i*4, list, h->ref_cache[list][ scan8[0] + 2*i ], &mx, &my);
2270
                        DECODE_CABAC_MB_MVD( h, list, 4*i)
2271

2272
                        tprintf(h->avctx, "final mv:%d %d\n", mx, my);
2273
                        fill_rectangle(h->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack8to16(mpx,mpy), 2);
2274 2275
                        fill_rectangle(h->mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack16to32(mx,my), 4);
                    }else{
2276
                        fill_rectangle(h->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 2);
2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290
                        fill_rectangle(h-> mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 4);
                    }
                }
            }
        }
    }

   if( IS_INTER( mb_type ) ) {
        h->chroma_pred_mode_table[mb_xy] = 0;
        write_back_motion( h, mb_type );
   }

    if( !IS_INTRA16x16( mb_type ) ) {
        cbp  = decode_cabac_mb_cbp_luma( h );
2291
        if(decode_chroma)
2292
            cbp |= decode_cabac_mb_cbp_chroma( h ) << 4;
2293 2294
    } else {
        if (!decode_chroma && cbp>15) {
2295
            av_log(h->avctx, AV_LOG_ERROR, "gray chroma\n");
2296 2297
            return AVERROR_INVALIDDATA;
        }
2298 2299 2300 2301 2302
    }

    h->cbp_table[mb_xy] = h->cbp = cbp;

    if( dct8x8_allowed && (cbp&15) && !IS_INTRA( mb_type ) ) {
2303
        mb_type |= MB_TYPE_8x8DCT * get_cabac_noinline( &h->cabac, &h->cabac_state[399 + h->neighbor_transform_size] );
2304
    }
2305 2306 2307

    /* It would be better to do this in fill_decode_caches, but we don't know
     * the transform mode of the current macroblock there. */
2308
    if (CHROMA444(h) && IS_8x8DCT(mb_type)){
2309
        int i;
2310
        uint8_t *nnz_cache = h->non_zero_count_cache;
2311
        for (i = 0; i < 2; i++){
2312
            if (h->left_type[LEFT(i)] && !IS_8x8DCT(h->left_type[LEFT(i)])){
2313 2314 2315 2316 2317 2318
                nnz_cache[3+8* 1 + 2*8*i]=
                nnz_cache[3+8* 2 + 2*8*i]=
                nnz_cache[3+8* 6 + 2*8*i]=
                nnz_cache[3+8* 7 + 2*8*i]=
                nnz_cache[3+8*11 + 2*8*i]=
                nnz_cache[3+8*12 + 2*8*i]= IS_INTRA(mb_type) ? 64 : 0;
2319 2320 2321
            }
        }
        if (h->top_type && !IS_8x8DCT(h->top_type)){
2322
            uint32_t top_empty = CABAC(h) && !IS_INTRA(mb_type) ? 0 : 0x40404040;
2323 2324 2325
            AV_WN32A(&nnz_cache[4+8* 0], top_empty);
            AV_WN32A(&nnz_cache[4+8* 5], top_empty);
            AV_WN32A(&nnz_cache[4+8*10], top_empty);
2326 2327
        }
    }
2328
    h->cur_pic.mb_type[mb_xy] = mb_type;
2329 2330

    if( cbp || IS_INTRA16x16( mb_type ) ) {
2331
        const uint8_t *scan, *scan8x8;
2332 2333 2334
        const uint32_t *qmul;

        if(IS_INTERLACED(mb_type)){
2335 2336
            scan8x8= h->qscale ? h->field_scan8x8 : h->field_scan8x8_q0;
            scan= h->qscale ? h->field_scan : h->field_scan_q0;
2337
        }else{
2338 2339
            scan8x8= h->qscale ? h->zigzag_scan8x8 : h->zigzag_scan8x8_q0;
            scan= h->qscale ? h->zigzag_scan : h->zigzag_scan_q0;
2340 2341
        }

2342 2343 2344 2345
        // decode_cabac_mb_dqp
        if(get_cabac_noinline( &h->cabac, &h->cabac_state[60 + (h->last_qscale_diff != 0)])){
            int val = 1;
            int ctx= 2;
2346
            const int max_qp = 51 + 6*(h->sps.bit_depth_luma-8);
2347 2348 2349 2350

            while( get_cabac_noinline( &h->cabac, &h->cabac_state[60 + ctx] ) ) {
                ctx= 3;
                val++;
2351
                if(val > 2*max_qp){ //prevent infinite loop
2352
                    av_log(h->avctx, AV_LOG_ERROR, "cabac decode of qscale diff failed at %d %d\n", h->mb_x, h->mb_y);
2353 2354 2355 2356 2357 2358 2359 2360 2361
                    return -1;
                }
            }

            if( val&0x01 )
                val=   (val + 1)>>1 ;
            else
                val= -((val + 1)>>1);
            h->last_qscale_diff = val;
2362 2363 2364 2365
            h->qscale += val;
            if(((unsigned)h->qscale) > max_qp){
                if(h->qscale<0) h->qscale+= max_qp+1;
                else            h->qscale-= max_qp+1;
Michael Niedermayer's avatar
Michael Niedermayer committed
2366
            }
2367 2368
            h->chroma_qp[0] = get_chroma_qp(h, 0, h->qscale);
            h->chroma_qp[1] = get_chroma_qp(h, 1, h->qscale);
2369 2370
        }else
            h->last_qscale_diff=0;
2371

2372
        decode_cabac_luma_residual(h, scan, scan8x8, pixel_shift, mb_type, cbp, 0);
2373
        if (CHROMA444(h)) {
2374 2375
            decode_cabac_luma_residual(h, scan, scan8x8, pixel_shift, mb_type, cbp, 1);
            decode_cabac_luma_residual(h, scan, scan8x8, pixel_shift, mb_type, cbp, 2);
2376
        } else if (CHROMA422(h)) {
2377 2378
            if( cbp&0x30 ){
                int c;
2379
                for (c = 0; c < 2; c++)
2380 2381 2382
                    decode_cabac_residual_dc_422(h, h->mb + ((256 + 16*16*c) << pixel_shift), 3,
                                                 CHROMA_DC_BLOCK_INDEX + c,
                                                 chroma422_dc_scan, 8);
2383 2384
            }

2385
            if( cbp&0x20 ) {
2386
                int c, i, i8x8;
2387
                for( c = 0; c < 2; c++ ) {
Diego Biurrun's avatar
Diego Biurrun committed
2388
                    int16_t *mb = h->mb + (16*(16 + 16*c) << pixel_shift);
2389
                    qmul = h->dequant4_coeff[c+1+(IS_INTRA( mb_type ) ? 0:3)][h->chroma_qp[c]];
2390
                    for (i8x8 = 0; i8x8 < 2; i8x8++) {
2391 2392 2393 2394 2395
                        for (i = 0; i < 4; i++) {
                            const int index = 16 + 16 * c + 8*i8x8 + i;
                            decode_cabac_residual_nondc(h, mb, 4, index, scan + 1, qmul, 15);
                            mb += 16<<pixel_shift;
                        }
2396
                    }
2397
                }
2398 2399 2400
            } else {
                fill_rectangle(&h->non_zero_count_cache[scan8[16]], 4, 4, 8, 0, 1);
                fill_rectangle(&h->non_zero_count_cache[scan8[32]], 4, 4, 8, 0, 1);
2401
            }
2402
        } else /* yuv420 */ {
2403 2404
            if( cbp&0x30 ){
                int c;
2405
                for (c = 0; c < 2; c++)
2406
                    decode_cabac_residual_dc(h, h->mb + ((256 + 16*16*c) << pixel_shift), 3, CHROMA_DC_BLOCK_INDEX+c, chroma_dc_scan, 4);
2407 2408
            }

2409 2410 2411 2412 2413 2414 2415 2416
            if( cbp&0x20 ) {
                int c, i;
                for( c = 0; c < 2; c++ ) {
                    qmul = h->dequant4_coeff[c+1+(IS_INTRA( mb_type ) ? 0:3)][h->chroma_qp[c]];
                    for( i = 0; i < 4; i++ ) {
                        const int index = 16 + 16 * c + i;
                        decode_cabac_residual_nondc(h, h->mb + (16*index << pixel_shift), 4, index, scan + 1, qmul, 15);
                    }
2417
                }
2418 2419 2420
            } else {
                fill_rectangle(&h->non_zero_count_cache[scan8[16]], 4, 4, 8, 0, 1);
                fill_rectangle(&h->non_zero_count_cache[scan8[32]], 4, 4, 8, 0, 1);
2421 2422 2423
            }
        }
    } else {
2424 2425 2426
        fill_rectangle(&h->non_zero_count_cache[scan8[ 0]], 4, 4, 8, 0, 1);
        fill_rectangle(&h->non_zero_count_cache[scan8[16]], 4, 4, 8, 0, 1);
        fill_rectangle(&h->non_zero_count_cache[scan8[32]], 4, 4, 8, 0, 1);
2427 2428 2429
        h->last_qscale_diff = 0;
    }

2430
    h->cur_pic.qscale_table[mb_xy] = h->qscale;
2431 2432 2433 2434
    write_back_non_zero_count(h);

    return 0;
}