h264_cabac.c 115 KB
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/*
 * 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
 */

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

28
#define CABAC(h) 1
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#define UNCHECKED_BITSTREAM_READER 1
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#define INT_BIT (CHAR_BIT * sizeof(int))
31

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#include "libavutil/attributes.h"
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#include "libavutil/avassert.h"
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#include "libavutil/timer.h"
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#include "config.h"
#include "cabac.h"
#include "cabac_functions.h"
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#include "internal.h"
#include "avcodec.h"
#include "h264.h"
#include "h264data.h"
#include "h264_mvpred.h"
#include "golomb.h"
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#include "mpegutils.h"
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#if ARCH_X86
#include "x86/h264_i386.h"
#endif

/* Cabac pre state table */

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static const int8_t cabac_context_init_I[1024][2] =
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217
{
    /* 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 },
218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361
    {  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 }
362 363
};

364
static const int8_t cabac_context_init_PB[3][1024][2] =
365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519
{
    /* 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 },
520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662

        /* 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 }
663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818
    },

    /* 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 },
819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961

        /* 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 }
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 1117
    },

    /* 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 },
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 1260

        /* 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 }
1261 1262 1263
    }
};

1264
void ff_h264_init_cabac_states(const H264Context *h, H264SliceContext *sl)
1265
{
1266
    int i;
1267
    const int8_t (*tab)[2];
1268
    const int slice_qp = av_clip(sl->qscale - 6*(h->ps.sps->bit_depth_luma-8), 0, 51);
1269

1270
    if (sl->slice_type_nos == AV_PICTURE_TYPE_I) tab = cabac_context_init_I;
1271
    else                                 tab = cabac_context_init_PB[sl->cabac_init_idc];
1272 1273

    /* calculate pre-state */
1274
    for( i= 0; i < 1024; i++ ) {
1275
        int pre = 2*(((tab[i][0] * slice_qp) >>4 ) + tab[i][1]) - 127;
1276 1277 1278 1279 1280

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

1281
        sl->cabac_state[i] =  pre;
1282 1283 1284
    }
}

1285
static int decode_cabac_field_decoding_flag(const H264Context *h, H264SliceContext *sl)
1286
{
1287
    const int mbb_xy = sl->mb_xy - 2*h->mb_stride;
1288

1289
    unsigned long ctx = 0;
1290

1291
    ctx += sl->mb_field_decoding_flag & !!sl->mb_x; //for FMO:(s->current_picture.mb_type[mba_xy] >> 7) & (h->slice_table[mba_xy] == h->slice_num);
1292
    ctx += (h->cur_pic.mb_type[mbb_xy] >> 7) & (h->slice_table[mbb_xy] == sl->slice_num);
1293

1294
    return get_cabac_noinline( &sl->cabac, &(sl->cabac_state+70)[ctx] );
1295 1296
}

1297
static int decode_cabac_intra_mb_type(H264SliceContext *sl,
1298 1299
                                      int ctx_base, int intra_slice)
{
1300
    uint8_t *state= &sl->cabac_state[ctx_base];
1301 1302 1303 1304
    int mb_type;

    if(intra_slice){
        int ctx=0;
1305
        if (sl->left_type[LTOP] & (MB_TYPE_INTRA16x16|MB_TYPE_INTRA_PCM))
1306
            ctx++;
1307
        if (sl->top_type        & (MB_TYPE_INTRA16x16|MB_TYPE_INTRA_PCM))
1308
            ctx++;
1309
        if( get_cabac_noinline( &sl->cabac, &state[ctx] ) == 0 )
1310 1311 1312
            return 0;   /* I4x4 */
        state += 2;
    }else{
1313
        if( get_cabac_noinline( &sl->cabac, state ) == 0 )
1314 1315 1316
            return 0;   /* I4x4 */
    }

1317
    if( get_cabac_terminate( &sl->cabac ) )
1318 1319 1320
        return 25;  /* PCM */

    mb_type = 1; /* I16x16 */
1321 1322 1323 1324 1325
    mb_type += 12 * get_cabac_noinline( &sl->cabac, &state[1] ); /* cbp_luma != 0 */
    if( get_cabac_noinline( &sl->cabac, &state[2] ) ) /* cbp_chroma */
        mb_type += 4 + 4 * get_cabac_noinline( &sl->cabac, &state[2+intra_slice] );
    mb_type += 2 * get_cabac_noinline( &sl->cabac, &state[3+intra_slice] );
    mb_type += 1 * get_cabac_noinline( &sl->cabac, &state[3+2*intra_slice] );
1326 1327 1328
    return mb_type;
}

1329
static int decode_cabac_mb_skip(const H264Context *h, H264SliceContext *sl,
1330 1331
                                int mb_x, int mb_y)
{
1332 1333 1334
    int mba_xy, mbb_xy;
    int ctx = 0;

1335
    if (FRAME_MBAFF(h)) { //FIXME merge with the stuff in fill_caches?
1336
        int mb_xy = mb_x + (mb_y&~1)*h->mb_stride;
1337 1338
        mba_xy = mb_xy - 1;
        if( (mb_y&1)
1339
            && h->slice_table[mba_xy] == sl->slice_num
1340
            && MB_FIELD(sl) == !!IS_INTERLACED( h->cur_pic.mb_type[mba_xy] ) )
1341
            mba_xy += h->mb_stride;
1342
        if (MB_FIELD(sl)) {
1343
            mbb_xy = mb_xy - h->mb_stride;
1344
            if( !(mb_y&1)
1345
                && h->slice_table[mbb_xy] == sl->slice_num
1346
                && IS_INTERLACED( h->cur_pic.mb_type[mbb_xy] ) )
1347
                mbb_xy -= h->mb_stride;
1348
        }else
1349
            mbb_xy = mb_x + (mb_y-1)*h->mb_stride;
1350
    }else{
1351
        int mb_xy = sl->mb_xy;
1352
        mba_xy = mb_xy - 1;
1353
        mbb_xy = mb_xy - (h->mb_stride << FIELD_PICTURE(h));
1354 1355
    }

1356
    if( h->slice_table[mba_xy] == sl->slice_num && !IS_SKIP(h->cur_pic.mb_type[mba_xy] ))
1357
        ctx++;
1358
    if( h->slice_table[mbb_xy] == sl->slice_num && !IS_SKIP(h->cur_pic.mb_type[mbb_xy] ))
1359 1360
        ctx++;

1361
    if (sl->slice_type_nos == AV_PICTURE_TYPE_B)
1362
        ctx += 13;
1363
    return get_cabac_noinline( &sl->cabac, &sl->cabac_state[11+ctx] );
1364 1365
}

1366
static int decode_cabac_mb_intra4x4_pred_mode(H264SliceContext *sl, int pred_mode)
1367
{
1368 1369
    int mode = 0;

1370
    if( get_cabac( &sl->cabac, &sl->cabac_state[68] ) )
1371 1372
        return pred_mode;

1373 1374 1375
    mode += 1 * get_cabac( &sl->cabac, &sl->cabac_state[69] );
    mode += 2 * get_cabac( &sl->cabac, &sl->cabac_state[69] );
    mode += 4 * get_cabac( &sl->cabac, &sl->cabac_state[69] );
1376

1377
    return mode + ( mode >= pred_mode );
1378 1379
}

1380
static int decode_cabac_mb_chroma_pre_mode(const H264Context *h, H264SliceContext *sl)
1381 1382 1383
{
    const int mba_xy = sl->left_mb_xy[0];
    const int mbb_xy = sl->top_mb_xy;
1384 1385 1386 1387

    int ctx = 0;

    /* No need to test for IS_INTRA4x4 and IS_INTRA16x16, as we set chroma_pred_mode_table to 0 */
1388
    if (sl->left_type[LTOP] && h->chroma_pred_mode_table[mba_xy] != 0)
1389 1390
        ctx++;

1391
    if (sl->top_type        && h->chroma_pred_mode_table[mbb_xy] != 0)
1392 1393
        ctx++;

1394
    if( get_cabac_noinline( &sl->cabac, &sl->cabac_state[64+ctx] ) == 0 )
1395 1396
        return 0;

1397
    if( get_cabac_noinline( &sl->cabac, &sl->cabac_state[64+3] ) == 0 )
1398
        return 1;
1399
    if( get_cabac_noinline( &sl->cabac, &sl->cabac_state[64+3] ) == 0 )
1400 1401 1402 1403 1404
        return 2;
    else
        return 3;
}

1405
static int decode_cabac_mb_cbp_luma(H264SliceContext *sl)
1406
{
1407 1408
    int cbp_b, cbp_a, ctx, cbp = 0;

1409 1410
    cbp_a = sl->left_cbp;
    cbp_b = sl->top_cbp;
1411 1412

    ctx = !(cbp_a & 0x02) + 2 * !(cbp_b & 0x04);
1413
    cbp += get_cabac_noinline(&sl->cabac, &sl->cabac_state[73 + ctx]);
1414
    ctx = !(cbp   & 0x01) + 2 * !(cbp_b & 0x08);
1415
    cbp += get_cabac_noinline(&sl->cabac, &sl->cabac_state[73 + ctx]) << 1;
1416
    ctx = !(cbp_a & 0x08) + 2 * !(cbp   & 0x01);
1417
    cbp += get_cabac_noinline(&sl->cabac, &sl->cabac_state[73 + ctx]) << 2;
1418
    ctx = !(cbp   & 0x04) + 2 * !(cbp   & 0x02);
1419
    cbp += get_cabac_noinline(&sl->cabac, &sl->cabac_state[73 + ctx]) << 3;
1420 1421
    return cbp;
}
1422
static int decode_cabac_mb_cbp_chroma(H264SliceContext *sl)
1423
{
1424 1425 1426
    int ctx;
    int cbp_a, cbp_b;

1427 1428
    cbp_a = (sl->left_cbp>>4)&0x03;
    cbp_b = (sl-> top_cbp>>4)&0x03;
1429 1430 1431 1432

    ctx = 0;
    if( cbp_a > 0 ) ctx++;
    if( cbp_b > 0 ) ctx += 2;
1433
    if( get_cabac_noinline( &sl->cabac, &sl->cabac_state[77 + ctx] ) == 0 )
1434 1435 1436 1437 1438
        return 0;

    ctx = 4;
    if( cbp_a == 2 ) ctx++;
    if( cbp_b == 2 ) ctx += 2;
1439
    return 1 + get_cabac_noinline( &sl->cabac, &sl->cabac_state[77 + ctx] );
1440 1441
}

1442
static int decode_cabac_p_mb_sub_type(H264SliceContext *sl)
1443 1444
{
    if( get_cabac( &sl->cabac, &sl->cabac_state[21] ) )
1445
        return 0;   /* 8x8 */
1446
    if( !get_cabac( &sl->cabac, &sl->cabac_state[22] ) )
1447
        return 1;   /* 8x4 */
1448
    if( get_cabac( &sl->cabac, &sl->cabac_state[23] ) )
1449 1450 1451
        return 2;   /* 4x8 */
    return 3;       /* 4x4 */
}
1452
static int decode_cabac_b_mb_sub_type(H264SliceContext *sl)
1453
{
1454
    int type;
1455
    if( !get_cabac( &sl->cabac, &sl->cabac_state[36] ) )
1456
        return 0;   /* B_Direct_8x8 */
1457 1458
    if( !get_cabac( &sl->cabac, &sl->cabac_state[37] ) )
        return 1 + get_cabac( &sl->cabac, &sl->cabac_state[39] ); /* B_L0_8x8, B_L1_8x8 */
1459
    type = 3;
1460 1461 1462
    if( get_cabac( &sl->cabac, &sl->cabac_state[38] ) ) {
        if( get_cabac( &sl->cabac, &sl->cabac_state[39] ) )
            return 11 + get_cabac( &sl->cabac, &sl->cabac_state[39] ); /* B_L1_4x4, B_Bi_4x4 */
1463 1464
        type += 4;
    }
1465 1466
    type += 2*get_cabac( &sl->cabac, &sl->cabac_state[39] );
    type +=   get_cabac( &sl->cabac, &sl->cabac_state[39] );
1467 1468 1469
    return type;
}

1470
static int decode_cabac_mb_ref(H264SliceContext *sl, int list, int n)
1471 1472 1473
{
    int refa = sl->ref_cache[list][scan8[n] - 1];
    int refb = sl->ref_cache[list][scan8[n] - 8];
1474 1475 1476
    int ref  = 0;
    int ctx  = 0;

1477
    if (sl->slice_type_nos == AV_PICTURE_TYPE_B) {
1478
        if( refa > 0 && !(sl->direct_cache[scan8[n] - 1]&(MB_TYPE_DIRECT2>>1)) )
1479
            ctx++;
1480
        if( refb > 0 && !(sl->direct_cache[scan8[n] - 8]&(MB_TYPE_DIRECT2>>1)) )
1481 1482 1483 1484 1485 1486 1487 1488
            ctx += 2;
    } else {
        if( refa > 0 )
            ctx++;
        if( refb > 0 )
            ctx += 2;
    }

1489
    while( get_cabac( &sl->cabac, &sl->cabac_state[54+ctx] ) ) {
1490 1491 1492 1493 1494 1495 1496 1497 1498
        ref++;
        ctx = (ctx>>2)+4;
        if(ref >= 32 /*h->ref_list[list]*/){
            return -1;
        }
    }
    return ref;
}

1499
static int decode_cabac_mb_mvd(H264SliceContext *sl, int ctxbase, int amvd, int *mvda)
1500
{
1501 1502
    int mvd;

1503
    if(!get_cabac(&sl->cabac, &sl->cabac_state[ctxbase+((amvd-3)>>(INT_BIT-1))+((amvd-33)>>(INT_BIT-1))+2])){
1504
//    if(!get_cabac(&sl->cabac, &sl->cabac_state[ctxbase+(amvd>2)+(amvd>32)])){
1505
        *mvda= 0;
1506
        return 0;
1507
    }
1508 1509

    mvd= 1;
1510
    ctxbase+= 3;
1511
    while( mvd < 9 && get_cabac( &sl->cabac, &sl->cabac_state[ctxbase] ) ) {
1512 1513
        if( mvd < 4 )
            ctxbase++;
1514 1515 1516 1517 1518
        mvd++;
    }

    if( mvd >= 9 ) {
        int k = 3;
1519
        while( get_cabac_bypass( &sl->cabac ) ) {
1520 1521 1522
            mvd += 1 << k;
            k++;
            if(k>24){
1523
                av_log(sl->h264->avctx, AV_LOG_ERROR, "overflow in decode_cabac_mb_mvd\n");
1524 1525 1526 1527
                return INT_MIN;
            }
        }
        while( k-- ) {
1528
            mvd += get_cabac_bypass( &sl->cabac )<<k;
1529
        }
1530 1531 1532
        *mvda=mvd < 70 ? mvd : 70;
    }else
        *mvda=mvd;
1533
    return get_cabac_bypass_sign( &sl->cabac, -mvd );
1534 1535
}

1536
#define DECODE_CABAC_MB_MVD(sl, list,  n )\
1537
{\
1538 1539 1540 1541
    int amvd0 = sl->mvd_cache[list][scan8[n] - 1][0] +\
                sl->mvd_cache[list][scan8[n] - 8][0];\
    int amvd1 = sl->mvd_cache[list][scan8[n] - 1][1] +\
                sl->mvd_cache[list][scan8[n] - 8][1];\
1542
\
1543 1544 1545 1546 1547 1548
    int mxd = decode_cabac_mb_mvd(sl, 40, amvd0, &mpx);\
    int myd = decode_cabac_mb_mvd(sl, 47, amvd1, &mpy);\
    if (mxd == INT_MIN || myd == INT_MIN) \
        return AVERROR_INVALIDDATA; \
    mx += mxd;\
    my += myd;\
1549 1550
}

1551
static av_always_inline int get_cabac_cbf_ctx(H264SliceContext *sl,
1552 1553 1554
                                              int cat, int idx, int max_coeff,
                                              int is_dc)
{
1555 1556
    int nza, nzb;
    int ctx = 0;
1557
    static const uint16_t base_ctx[14] = {85,89,93,97,101,1012,460,464,468,1016,472,476,480,1020};
1558 1559

    if( is_dc ) {
1560
        if( cat == 3 ) {
1561
            idx -= CHROMA_DC_BLOCK_INDEX;
1562 1563
            nza = (sl->left_cbp>>(6+idx))&0x01;
            nzb = (sl-> top_cbp>>(6+idx))&0x01;
1564 1565
        } else {
            idx -= LUMA_DC_BLOCK_INDEX;
1566 1567
            nza = sl->left_cbp&(0x100<<idx);
            nzb = sl-> top_cbp&(0x100<<idx);
1568 1569
        }
    } else {
1570 1571
        nza = sl->non_zero_count_cache[scan8[idx] - 1];
        nzb = sl->non_zero_count_cache[scan8[idx] - 8];
1572 1573 1574 1575 1576 1577 1578 1579
    }

    if( nza > 0 )
        ctx++;

    if( nzb > 0 )
        ctx += 2;

1580
    return base_ctx[cat] + ctx;
1581 1582
}

1583
static av_always_inline void
1584
decode_cabac_residual_internal(const H264Context *h, H264SliceContext *sl,
1585
                               int16_t *block,
1586 1587 1588 1589
                               int cat, int n, const uint8_t *scantable,
                               const uint32_t *qmul, int max_coeff,
                               int is_dc, int chroma422)
{
1590 1591 1592
    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 }
1593
    };
1594 1595 1596
    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 }
1597
    };
1598 1599
    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
1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610
    };
    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 }
    };
1611
    static const uint8_t sig_coeff_offset_dc[7] = { 0, 0, 1, 1, 2, 2, 2 };
1612 1613 1614 1615 1616
    /* 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 */
1617 1618 1619 1620
    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
    };
1621 1622 1623 1624 1625 1626 1627 1628 1629
    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];

1630
    int last;
1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643
    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;
1644 1645 1646
    cc.range     = sl->cabac.range;
    cc.low       = sl->cabac.low;
    cc.bytestream= sl->cabac.bytestream;
1647
#if !UNCHECKED_BITSTREAM_READER || ARCH_AARCH64
1648
    cc.bytestream_end = sl->cabac.bytestream_end;
1649
#endif
1650
#else
1651
#define CC &sl->cabac
1652 1653
#endif

1654
    significant_coeff_ctx_base = sl->cabac_state
1655
        + significant_coeff_flag_offset[MB_FIELD(sl)][cat];
1656
    last_coeff_ctx_base = sl->cabac_state
1657
        + last_coeff_flag_offset[MB_FIELD(sl)][cat];
1658
    abs_level_m1_ctx_base = sl->cabac_state
1659 1660
        + coeff_abs_level_m1_offset[cat];

1661
    if( !is_dc && max_coeff == 64 ) {
1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676
#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;\
        }
1677
        const uint8_t *sig_off = significant_coeff_flag_offset_8x8[MB_FIELD(sl)];
1678 1679
#ifdef decode_significance
        coeff_count = decode_significance_8x8(CC, significant_coeff_ctx_base, index,
1680
                                                 last_coeff_ctx_base, sig_off);
1681
    } else {
1682
        if (is_dc && chroma422) { // dc 422
1683 1684
            DECODE_SIGNIFICANCE(7, sig_coeff_offset_dc[last], sig_coeff_offset_dc[last]);
        } else {
1685
            coeff_count = decode_significance(CC, max_coeff, significant_coeff_ctx_base, index,
1686 1687
                                                 last_coeff_ctx_base-significant_coeff_ctx_base);
        }
1688
#else
1689
        DECODE_SIGNIFICANCE( 63, sig_off[last], ff_h264_last_coeff_flag_offset_8x8[last] );
1690
    } else {
1691
        if (is_dc && chroma422) { // dc 422
1692 1693 1694 1695
            DECODE_SIGNIFICANCE(7, sig_coeff_offset_dc[last], sig_coeff_offset_dc[last]);
        } else {
            DECODE_SIGNIFICANCE(max_coeff - 1, last, last);
        }
1696 1697
#endif
    }
1698
    av_assert2(coeff_count > 0);
1699 1700

    if( is_dc ) {
1701
        if( cat == 3 )
1702
            h->cbp_table[sl->mb_xy] |= 0x40 << (n - CHROMA_DC_BLOCK_INDEX);
1703
        else
1704
            h->cbp_table[sl->mb_xy] |= 0x100 << (n - LUMA_DC_BLOCK_INDEX);
1705
        sl->non_zero_count_cache[scan8[n]] = coeff_count;
1706
    } else {
1707
        if( max_coeff == 64 )
1708
            fill_rectangle(&sl->non_zero_count_cache[scan8[n]], 2, 2, 8, coeff_count, 1);
1709
        else {
1710
            av_assert2( cat == 1 || cat ==  2 || cat ==  4 || cat == 7 || cat == 8 || cat == 11 || cat == 12 );
1711
            sl->non_zero_count_cache[scan8[n]] = coeff_count;
1712 1713 1714
        }
    }

1715
#define STORE_BLOCK(type) \
1716 1717 1718 1719 1720
    do { \
        uint8_t *ctx = coeff_abs_level1_ctx[node_ctx] + abs_level_m1_ctx_base; \
 \
        int j= scantable[index[--coeff_count]]; \
 \
1721 1722 1723 1724 1725 1726 1727 1728 1729
        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; \
1730
            ctx = coeff_abs_levelgt1_ctx[is_dc && chroma422][node_ctx] + abs_level_m1_ctx_base; \
1731 1732 1733 1734 1735 1736 1737 1738
            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; \
1739
                while (get_cabac_bypass(CC) && j < 30) { \
1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754
                    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; \
            } \
1755 1756
        } \
    } while ( coeff_count );
1757

1758 1759 1760 1761 1762
    if (h->pixel_shift) {
        STORE_BLOCK(int32_t)
    } else {
        STORE_BLOCK(int16_t)
    }
1763
#ifdef CABAC_ON_STACK
1764 1765 1766
            sl->cabac.range     = cc.range     ;
            sl->cabac.low       = cc.low       ;
            sl->cabac.bytestream= cc.bytestream;
1767 1768 1769 1770
#endif

}

1771
static av_noinline void decode_cabac_residual_dc_internal(const H264Context *h,
1772
                                                          H264SliceContext *sl,
1773 1774 1775 1776
                                                          int16_t *block,
                                                          int cat, int n,
                                                          const uint8_t *scantable,
                                                          int max_coeff)
Diego Biurrun's avatar
Diego Biurrun committed
1777
{
1778
    decode_cabac_residual_internal(h, sl, block, cat, n, scantable, NULL, max_coeff, 1, 0);
1779 1780
}

1781
static av_noinline void decode_cabac_residual_dc_internal_422(const H264Context *h,
1782
                                                              H264SliceContext *sl,
1783 1784 1785 1786
                                                              int16_t *block,
                                                              int cat, int n,
                                                              const uint8_t *scantable,
                                                              int max_coeff)
1787
{
1788
    decode_cabac_residual_internal(h, sl, block, cat, n, scantable, NULL, max_coeff, 1, 1);
1789 1790
}

1791
static av_noinline void decode_cabac_residual_nondc_internal(const H264Context *h,
1792
                                                             H264SliceContext *sl,
1793 1794 1795 1796 1797
                                                             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
1798
{
1799
    decode_cabac_residual_internal(h, sl, block, cat, n, scantable, qmul, max_coeff, 0, 0);
1800 1801
}

1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813
/* 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. */

1814
static av_always_inline void decode_cabac_residual_dc(const H264Context *h,
1815
                                                      H264SliceContext *sl,
Diego Biurrun's avatar
Diego Biurrun committed
1816 1817 1818 1819 1820
                                                      int16_t *block,
                                                      int cat, int n,
                                                      const uint8_t *scantable,
                                                      int max_coeff)
{
1821
    /* read coded block flag */
1822
    if( get_cabac( &sl->cabac, &sl->cabac_state[get_cabac_cbf_ctx(sl, cat, n, max_coeff, 1)]) == 0 ) {
1823
        sl->non_zero_count_cache[scan8[n]] = 0;
1824 1825
        return;
    }
1826
    decode_cabac_residual_dc_internal(h, sl, block, cat, n, scantable, max_coeff);
1827 1828
}

1829
static av_always_inline void
1830
decode_cabac_residual_dc_422(const H264Context *h, H264SliceContext *sl,
1831
                             int16_t *block,
1832 1833 1834 1835
                             int cat, int n, const uint8_t *scantable,
                             int max_coeff)
{
    /* read coded block flag */
1836
    if (get_cabac(&sl->cabac, &sl->cabac_state[get_cabac_cbf_ctx(sl, cat, n, max_coeff, 1)]) == 0) {
1837
        sl->non_zero_count_cache[scan8[n]] = 0;
1838 1839
        return;
    }
1840
    decode_cabac_residual_dc_internal_422(h, sl, block, cat, n, scantable, max_coeff);
1841 1842
}

1843
static av_always_inline void decode_cabac_residual_nondc(const H264Context *h,
1844
                                                         H264SliceContext *sl,
Diego Biurrun's avatar
Diego Biurrun committed
1845 1846 1847 1848 1849 1850
                                                         int16_t *block,
                                                         int cat, int n,
                                                         const uint8_t *scantable,
                                                         const uint32_t *qmul,
                                                         int max_coeff)
{
1851
    /* read coded block flag */
1852
    if( (cat != 5 || CHROMA444(h)) && get_cabac( &sl->cabac, &sl->cabac_state[get_cabac_cbf_ctx(sl, cat, n, max_coeff, 0)]) == 0) {
1853
        if( max_coeff == 64 ) {
1854
            fill_rectangle(&sl->non_zero_count_cache[scan8[n]], 2, 2, 8, 0, 1);
1855
        } else {
1856
            sl->non_zero_count_cache[scan8[n]] = 0;
1857
        }
1858 1859
        return;
    }
1860
    decode_cabac_residual_nondc_internal(h, sl, block, cat, n, scantable, qmul, max_coeff);
1861 1862
}

1863
static av_always_inline void decode_cabac_luma_residual(const H264Context *h, H264SliceContext *sl,
1864 1865
                                                        const uint8_t *scan, const uint8_t *scan8x8,
                                                        int pixel_shift, int mb_type, int cbp, int p)
1866 1867 1868 1869
{
    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;
1870
    int qscale = p == 0 ? sl->qscale : sl->chroma_qp[p - 1];
1871
    if( IS_INTRA16x16( mb_type ) ) {
1872 1873 1874 1875 1876
        AV_ZERO128(sl->mb_luma_dc[p]+0);
        AV_ZERO128(sl->mb_luma_dc[p]+8);
        AV_ZERO128(sl->mb_luma_dc[p]+16);
        AV_ZERO128(sl->mb_luma_dc[p]+24);
        decode_cabac_residual_dc(h, sl, sl->mb_luma_dc[p], ctx_cat[0][p], LUMA_DC_BLOCK_INDEX+p, scan, 16);
1877 1878

        if( cbp&15 ) {
1879
            qmul = h->ps.pps->dequant4_coeff[p][qscale];
1880 1881
            for( i4x4 = 0; i4x4 < 16; i4x4++ ) {
                const int index = 16*p + i4x4;
1882
                decode_cabac_residual_nondc(h, sl, sl->mb + (16*index << pixel_shift), ctx_cat[1][p], index, scan + 1, qmul, 15);
1883 1884
            }
        } else {
1885
            fill_rectangle(&sl->non_zero_count_cache[scan8[16*p]], 4, 4, 8, 0, 1);
1886 1887 1888 1889 1890 1891 1892
        }
    } 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;
1893
                    decode_cabac_residual_nondc(h, sl, sl->mb + (16*index << pixel_shift), ctx_cat[3][p], index,
1894
                                                scan8x8, h->ps.pps->dequant8_coeff[cqm][qscale], 64);
1895
                } else {
1896
                    qmul = h->ps.pps->dequant4_coeff[cqm][qscale];
1897 1898 1899
                    for( i4x4 = 0; i4x4 < 4; i4x4++ ) {
                        const int index = 16*p + 4*i8x8 + i4x4;
//START_TIMER
1900
                        decode_cabac_residual_nondc(h, sl, sl->mb + (16*index << pixel_shift), ctx_cat[2][p], index, scan, qmul, 16);
1901 1902 1903 1904
//STOP_TIMER("decode_residual")
                    }
                }
            } else {
1905
                fill_rectangle(&sl->non_zero_count_cache[scan8[4*i8x8+16*p]], 2, 2, 8, 0, 1);
1906 1907 1908 1909 1910
            }
        }
    }
}

1911
/**
1912
 * Decode a macroblock.
1913
 * @return 0 if OK, ER_AC_ERROR / ER_DC_ERROR / ER_MV_ERROR if an error is noticed
1914
 */
1915
int ff_h264_decode_mb_cabac(const H264Context *h, H264SliceContext *sl)
1916
{
1917
    const SPS *sps = h->ps.sps;
1918 1919
    int mb_xy;
    int mb_type, partition_count, cbp = 0;
1920 1921
    int dct8x8_allowed= h->ps.pps->transform_8x8_mode;
    int decode_chroma = sps->chroma_format_idc == 1 || sps->chroma_format_idc == 2;
1922
    const int pixel_shift = h->pixel_shift;
1923

1924
    mb_xy = sl->mb_xy = sl->mb_x + sl->mb_y*h->mb_stride;
1925

1926
    ff_tlog(h->avctx, "pic:%d mb:%d/%d\n", h->poc.frame_num, sl->mb_x, sl->mb_y);
1927
    if (sl->slice_type_nos != AV_PICTURE_TYPE_I) {
1928 1929
        int skip;
        /* a skipped mb needs the aff flag from the following mb */
1930
        if (FRAME_MBAFF(h) && (sl->mb_y & 1) == 1 && sl->prev_mb_skipped)
1931
            skip = sl->next_mb_skipped;
1932
        else
1933
            skip = decode_cabac_mb_skip(h, sl, sl->mb_x, sl->mb_y );
1934 1935
        /* read skip flags */
        if( skip ) {
1936
            if (FRAME_MBAFF(h) && (sl->mb_y & 1) == 0) {
1937
                h->cur_pic.mb_type[mb_xy] = MB_TYPE_SKIP;
1938
                sl->next_mb_skipped = decode_cabac_mb_skip(h, sl, sl->mb_x, sl->mb_y+1 );
1939
                if(!sl->next_mb_skipped)
1940
                    sl->mb_mbaff = sl->mb_field_decoding_flag = decode_cabac_field_decoding_flag(h, sl);
1941 1942
            }

1943
            decode_mb_skip(h, sl);
1944 1945 1946

            h->cbp_table[mb_xy] = 0;
            h->chroma_pred_mode_table[mb_xy] = 0;
1947
            sl->last_qscale_diff = 0;
1948 1949 1950 1951 1952

            return 0;

        }
    }
1953
    if (FRAME_MBAFF(h)) {
1954
        if ((sl->mb_y & 1) == 0)
1955
            sl->mb_mbaff =
1956
            sl->mb_field_decoding_flag = decode_cabac_field_decoding_flag(h, sl);
1957 1958
    }

1959
    sl->prev_mb_skipped = 0;
1960

1961
    fill_decode_neighbors(h, sl, -(MB_FIELD(sl)));
1962

1963
    if (sl->slice_type_nos == AV_PICTURE_TYPE_B) {
1964
        int ctx = 0;
1965
        av_assert2(sl->slice_type_nos == AV_PICTURE_TYPE_B);
1966

1967
        if (!IS_DIRECT(sl->left_type[LTOP] - 1))
1968
            ctx++;
1969
        if (!IS_DIRECT(sl->top_type - 1))
1970 1971
            ctx++;

1972
        if( !get_cabac_noinline( &sl->cabac, &sl->cabac_state[27+ctx] ) ){
1973
            mb_type= 0; /* B_Direct_16x16 */
1974 1975
        }else if( !get_cabac_noinline( &sl->cabac, &sl->cabac_state[27+3] ) ) {
            mb_type= 1 + get_cabac_noinline( &sl->cabac, &sl->cabac_state[27+5] ); /* B_L[01]_16x16 */
1976
        }else{
1977
            int bits;
1978 1979 1980 1981
            bits = get_cabac_noinline( &sl->cabac, &sl->cabac_state[27+4] ) << 3;
            bits+= get_cabac_noinline( &sl->cabac, &sl->cabac_state[27+5] ) << 2;
            bits+= get_cabac_noinline( &sl->cabac, &sl->cabac_state[27+5] ) << 1;
            bits+= get_cabac_noinline( &sl->cabac, &sl->cabac_state[27+5] );
1982 1983 1984
            if( bits < 8 ){
                mb_type= bits + 3; /* B_Bi_16x16 through B_L1_L0_16x8 */
            }else if( bits == 13 ){
1985
                mb_type = decode_cabac_intra_mb_type(sl, 32, 0);
1986 1987 1988 1989 1990 1991
                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{
1992
                bits= ( bits<<1 ) + get_cabac_noinline( &sl->cabac, &sl->cabac_state[27+5] );
1993 1994
                mb_type= bits - 4; /* B_L0_Bi_* through B_Bi_Bi_* */
            }
1995
        }
1996 1997
            partition_count = ff_h264_b_mb_type_info[mb_type].partition_count;
            mb_type         = ff_h264_b_mb_type_info[mb_type].type;
1998
    } else if (sl->slice_type_nos == AV_PICTURE_TYPE_P) {
1999
        if( get_cabac_noinline( &sl->cabac, &sl->cabac_state[14] ) == 0 ) {
2000
            /* P-type */
2001
            if( get_cabac_noinline( &sl->cabac, &sl->cabac_state[15] ) == 0 ) {
2002
                /* P_L0_D16x16, P_8x8 */
2003
                mb_type= 3 * get_cabac_noinline( &sl->cabac, &sl->cabac_state[16] );
2004 2005
            } else {
                /* P_L0_D8x16, P_L0_D16x8 */
2006
                mb_type= 2 - get_cabac_noinline( &sl->cabac, &sl->cabac_state[17] );
2007
            }
2008 2009
            partition_count = ff_h264_p_mb_type_info[mb_type].partition_count;
            mb_type         = ff_h264_p_mb_type_info[mb_type].type;
2010
        } else {
2011
            mb_type = decode_cabac_intra_mb_type(sl, 17, 0);
2012 2013 2014
            goto decode_intra_mb;
        }
    } else {
2015
        mb_type = decode_cabac_intra_mb_type(sl, 3, 1);
2016
        if (sl->slice_type == AV_PICTURE_TYPE_SI && mb_type)
2017
            mb_type--;
2018
        av_assert2(sl->slice_type_nos == AV_PICTURE_TYPE_I);
2019 2020
decode_intra_mb:
        partition_count = 0;
2021 2022 2023
        cbp                      = ff_h264_i_mb_type_info[mb_type].cbp;
        sl->intra16x16_pred_mode = ff_h264_i_mb_type_info[mb_type].pred_mode;
        mb_type                  = ff_h264_i_mb_type_info[mb_type].type;
2024
    }
2025
    if (MB_FIELD(sl))
2026 2027
        mb_type |= MB_TYPE_INTERLACED;

2028
    h->slice_table[mb_xy] = sl->slice_num;
2029 2030

    if(IS_INTRA_PCM(mb_type)) {
2031 2032
        const int mb_size = ff_h264_mb_sizes[sps->chroma_format_idc] *
                            sps->bit_depth_luma >> 3;
2033
        const uint8_t *ptr;
2034
        int ret;
2035 2036 2037 2038

        // 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).
2039 2040
        ptr= sl->cabac.bytestream;
        if(sl->cabac.low&0x1) ptr--;
2041
        if(CABAC_BITS==16){
2042
            if(sl->cabac.low&0x1FF) ptr--;
2043 2044 2045
        }

        // The pixels are stored in the same order as levels in h->mb array.
2046
        if ((int) (sl->cabac.bytestream_end - ptr) < mb_size)
2047
            return -1;
2048
        sl->intra_pcm_ptr = ptr;
2049
        ptr += mb_size;
2050

2051 2052 2053
        ret = ff_init_cabac_decoder(&sl->cabac, ptr, sl->cabac.bytestream_end - ptr);
        if (ret < 0)
            return ret;
2054 2055

        // All blocks are present
2056
        h->cbp_table[mb_xy] = 0xf7ef;
2057 2058
        h->chroma_pred_mode_table[mb_xy] = 0;
        // In deblocking, the quantizer is 0
2059
        h->cur_pic.qscale_table[mb_xy] = 0;
2060
        // All coeffs are present
2061
        memset(h->non_zero_count[mb_xy], 16, 48);
2062
        h->cur_pic.mb_type[mb_xy] = mb_type;
2063
        sl->last_qscale_diff = 0;
2064 2065 2066
        return 0;
    }

2067
    fill_decode_caches(h, sl, mb_type);
2068 2069 2070 2071

    if( IS_INTRA( mb_type ) ) {
        int i, pred_mode;
        if( IS_INTRA4x4( mb_type ) ) {
2072
            if (dct8x8_allowed && get_cabac_noinline(&sl->cabac, &sl->cabac_state[399 + sl->neighbor_transform_size])) {
2073 2074
                mb_type |= MB_TYPE_8x8DCT;
                for( i = 0; i < 16; i+=4 ) {
2075
                    int pred = pred_intra_mode(h, sl, i);
2076
                    int mode = decode_cabac_mb_intra4x4_pred_mode(sl, pred);
2077
                    fill_rectangle(&sl->intra4x4_pred_mode_cache[scan8[i]], 2, 2, 8, mode, 1);
2078 2079 2080
                }
            } else {
                for( i = 0; i < 16; i++ ) {
2081
                    int pred = pred_intra_mode(h, sl, i);
2082
                    sl->intra4x4_pred_mode_cache[scan8[i]] = decode_cabac_mb_intra4x4_pred_mode(sl, pred);
2083

2084
                    ff_tlog(h->avctx, "i4x4 pred=%d mode=%d\n", pred,
2085
                            sl->intra4x4_pred_mode_cache[scan8[i]]);
2086 2087
                }
            }
2088
            write_back_intra_pred_mode(h, sl);
2089 2090 2091
            if (ff_h264_check_intra4x4_pred_mode(sl->intra4x4_pred_mode_cache, h->avctx,
                                                 sl->top_samples_available, sl->left_samples_available) < 0 )
                return -1;
2092
        } else {
2093 2094
            sl->intra16x16_pred_mode = ff_h264_check_intra_pred_mode(h->avctx, sl->top_samples_available,
                                                                     sl->left_samples_available, sl->intra16x16_pred_mode, 0);
2095
            if (sl->intra16x16_pred_mode < 0) return -1;
2096
        }
2097
        if(decode_chroma){
2098
            h->chroma_pred_mode_table[mb_xy] =
2099
            pred_mode                        = decode_cabac_mb_chroma_pre_mode(h, sl);
2100

2101 2102
            pred_mode= ff_h264_check_intra_pred_mode(h->avctx, sl->top_samples_available,
                                                     sl->left_samples_available, pred_mode, 1 );
2103
            if( pred_mode < 0 ) return -1;
2104
            sl->chroma_pred_mode = pred_mode;
2105
        } else {
2106
            sl->chroma_pred_mode = DC_128_PRED8x8;
2107 2108 2109 2110
        }
    } else if( partition_count == 4 ) {
        int i, j, sub_partition_count[4], list, ref[2][4];

2111
        if (sl->slice_type_nos == AV_PICTURE_TYPE_B ) {
2112
            for( i = 0; i < 4; i++ ) {
2113
                sl->sub_mb_type[i] = decode_cabac_b_mb_sub_type(sl);
2114 2115
                sub_partition_count[i] = ff_h264_b_sub_mb_type_info[sl->sub_mb_type[i]].partition_count;
                sl->sub_mb_type[i]     = ff_h264_b_sub_mb_type_info[sl->sub_mb_type[i]].type;
2116
            }
2117 2118
            if (IS_DIRECT(sl->sub_mb_type[0] | sl->sub_mb_type[1] |
                          sl->sub_mb_type[2] | sl->sub_mb_type[3])) {
2119 2120 2121 2122 2123
                ff_h264_pred_direct_motion(h, sl, &mb_type);
                sl->ref_cache[0][scan8[4]] =
                sl->ref_cache[1][scan8[4]] =
                sl->ref_cache[0][scan8[12]] =
                sl->ref_cache[1][scan8[12]] = PART_NOT_AVAILABLE;
2124
                    for( i = 0; i < 4; i++ )
2125
                        fill_rectangle(&sl->direct_cache[scan8[4*i]], 2, 2, 8, (sl->sub_mb_type[i] >> 1) & 0xFF, 1);
2126 2127 2128
            }
        } else {
            for( i = 0; i < 4; i++ ) {
2129
                sl->sub_mb_type[i] = decode_cabac_p_mb_sub_type(sl);
2130 2131
                sub_partition_count[i] = ff_h264_p_sub_mb_type_info[sl->sub_mb_type[i]].partition_count;
                sl->sub_mb_type[i]     = ff_h264_p_sub_mb_type_info[sl->sub_mb_type[i]].type;
2132 2133 2134
            }
        }

2135
        for( list = 0; list < sl->list_count; list++ ) {
2136
                for( i = 0; i < 4; i++ ) {
2137 2138
                    if(IS_DIRECT(sl->sub_mb_type[i])) continue;
                    if(IS_DIR(sl->sub_mb_type[i], 0, list)){
2139 2140
                        unsigned rc = sl->ref_count[list] << MB_MBAFF(sl);
                        if (rc > 1) {
2141
                            ref[list][i] = decode_cabac_mb_ref(sl, list, 4 * i);
2142 2143
                            if (ref[list][i] >= rc) {
                                av_log(h->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref[list][i], rc);
2144 2145 2146 2147 2148 2149 2150
                                return -1;
                            }
                        }else
                            ref[list][i] = 0;
                    } else {
                        ref[list][i] = -1;
                    }
2151 2152
                    sl->ref_cache[list][scan8[4 * i] + 1] =
                    sl->ref_cache[list][scan8[4 * i] + 8] = sl->ref_cache[list][scan8[4 * i] + 9] = ref[list][i];
2153 2154 2155 2156
                }
        }

        if(dct8x8_allowed)
2157
            dct8x8_allowed = get_dct8x8_allowed(h, sl);
2158

2159
        for (list = 0; list < sl->list_count; list++) {
2160
            for(i=0; i<4; i++){
2161
                sl->ref_cache[list][scan8[4 * i]] = sl->ref_cache[list][scan8[4 * i] + 1];
2162
                if(IS_DIRECT(sl->sub_mb_type[i])){
2163
                    fill_rectangle(sl->mvd_cache[list][scan8[4*i]], 2, 2, 8, 0, 2);
2164 2165 2166
                    continue;
                }

2167 2168
                if(IS_DIR(sl->sub_mb_type[i], 0, list) && !IS_DIRECT(sl->sub_mb_type[i])){
                    const int sub_mb_type= sl->sub_mb_type[i];
2169 2170 2171 2172 2173
                    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;
2174
                        int16_t (* mv_cache)[2] = &sl->mv_cache[list][ scan8[index] ];
2175
                        uint8_t (* mvd_cache)[2]= &sl->mvd_cache[list][ scan8[index] ];
2176
                        pred_motion(h, sl, index, block_width, list, sl->ref_cache[list][ scan8[index] ], &mx, &my);
2177
                        DECODE_CABAC_MB_MVD(sl, list, index)
2178
                        ff_tlog(h->avctx, "final mv:%d %d\n", mx, my);
2179 2180 2181 2182 2183 2184 2185 2186

                        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]=
2187
                            mvd_cache[ 8 ][0]= mvd_cache[ 9 ][0]= mpx;
2188
                            mvd_cache[ 1 ][1]=
2189
                            mvd_cache[ 8 ][1]= mvd_cache[ 9 ][1]= mpy;
2190 2191 2192 2193
                        }else if(IS_SUB_8X4(sub_mb_type)){
                            mv_cache[ 1 ][0]= mx;
                            mv_cache[ 1 ][1]= my;

2194 2195
                            mvd_cache[ 1 ][0]=  mpx;
                            mvd_cache[ 1 ][1]= mpy;
2196 2197 2198 2199
                        }else if(IS_SUB_4X8(sub_mb_type)){
                            mv_cache[ 8 ][0]= mx;
                            mv_cache[ 8 ][1]= my;

2200 2201
                            mvd_cache[ 8 ][0]= mpx;
                            mvd_cache[ 8 ][1]= mpy;
2202 2203 2204 2205
                        }
                        mv_cache[ 0 ][0]= mx;
                        mv_cache[ 0 ][1]= my;

2206 2207
                        mvd_cache[ 0 ][0]= mpx;
                        mvd_cache[ 0 ][1]= mpy;
2208 2209
                    }
                }else{
2210
                    fill_rectangle(sl->mv_cache [list][ scan8[4*i] ], 2, 2, 8, 0, 4);
2211
                    fill_rectangle(sl->mvd_cache[list][ scan8[4*i] ], 2, 2, 8, 0, 2);
2212 2213 2214 2215
                }
            }
        }
    } else if( IS_DIRECT(mb_type) ) {
2216
        ff_h264_pred_direct_motion(h, sl, &mb_type);
2217 2218
        fill_rectangle(sl->mvd_cache[0][scan8[0]], 4, 4, 8, 0, 2);
        fill_rectangle(sl->mvd_cache[1][scan8[0]], 4, 4, 8, 0, 2);
2219
        dct8x8_allowed &= sps->direct_8x8_inference_flag;
2220
    } else {
2221
        int list, i;
2222
        if(IS_16X16(mb_type)){
2223
            for (list = 0; list < sl->list_count; list++) {
2224 2225
                if(IS_DIR(mb_type, 0, list)){
                    int ref;
2226 2227
                    unsigned rc = sl->ref_count[list] << MB_MBAFF(sl);
                    if (rc > 1) {
2228
                        ref= decode_cabac_mb_ref(sl, list, 0);
2229 2230
                        if (ref >= rc) {
                            av_log(h->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref, rc);
2231 2232 2233 2234
                            return -1;
                        }
                    }else
                        ref=0;
2235
                    fill_rectangle(&sl->ref_cache[list][ scan8[0] ], 4, 4, 8, ref, 1);
2236
                }
2237
            }
2238
            for (list = 0; list < sl->list_count; list++) {
2239
                if(IS_DIR(mb_type, 0, list)){
2240
                    int mx,my,mpx,mpy;
2241
                    pred_motion(h, sl, 0, 4, list, sl->ref_cache[list][ scan8[0] ], &mx, &my);
2242
                    DECODE_CABAC_MB_MVD(sl, list, 0)
2243
                    ff_tlog(h->avctx, "final mv:%d %d\n", mx, my);
2244

2245
                    fill_rectangle(sl->mvd_cache[list][ scan8[0] ], 4, 4, 8, pack8to16(mpx,mpy), 2);
2246
                    fill_rectangle(sl->mv_cache[list][ scan8[0] ], 4, 4, 8, pack16to32(mx,my), 4);
2247
                }
2248 2249 2250
            }
        }
        else if(IS_16X8(mb_type)){
2251
            for (list = 0; list < sl->list_count; list++) {
2252 2253 2254
                    for(i=0; i<2; i++){
                        if(IS_DIR(mb_type, i, list)){
                            int ref;
2255 2256
                            unsigned rc = sl->ref_count[list] << MB_MBAFF(sl);
                            if (rc > 1) {
2257
                                ref= decode_cabac_mb_ref(sl, list, 8 * i);
2258 2259
                                if (ref >= rc) {
                                    av_log(h->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref, rc);
2260 2261 2262 2263
                                    return -1;
                                }
                            }else
                                ref=0;
2264
                            fill_rectangle(&sl->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, ref, 1);
2265
                        }else
2266
                            fill_rectangle(&sl->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, (LIST_NOT_USED&0xFF), 1);
2267 2268
                    }
            }
2269
            for (list = 0; list < sl->list_count; list++) {
2270 2271
                for(i=0; i<2; i++){
                    if(IS_DIR(mb_type, i, list)){
2272
                        int mx,my,mpx,mpy;
2273
                        pred_16x8_motion(h, sl, 8*i, list, sl->ref_cache[list][scan8[0] + 16*i], &mx, &my);
2274
                        DECODE_CABAC_MB_MVD(sl, list, 8*i)
2275
                        ff_tlog(h->avctx, "final mv:%d %d\n", mx, my);
2276

2277
                        fill_rectangle(sl->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack8to16(mpx,mpy), 2);
2278
                        fill_rectangle(sl->mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack16to32(mx,my), 4);
2279
                    }else{
2280
                        fill_rectangle(sl->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 2);
2281
                        fill_rectangle(sl->mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 4);
2282 2283 2284 2285
                    }
                }
            }
        }else{
2286
            av_assert2(IS_8X16(mb_type));
2287
            for (list = 0; list < sl->list_count; list++) {
2288 2289 2290
                    for(i=0; i<2; i++){
                        if(IS_DIR(mb_type, i, list)){ //FIXME optimize
                            int ref;
2291 2292
                            unsigned rc = sl->ref_count[list] << MB_MBAFF(sl);
                            if (rc > 1) {
2293
                                ref = decode_cabac_mb_ref(sl, list, 4 * i);
2294 2295
                                if (ref >= rc) {
                                    av_log(h->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref, rc);
2296 2297 2298 2299
                                    return -1;
                                }
                            }else
                                ref=0;
2300
                            fill_rectangle(&sl->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, ref, 1);
2301
                        }else
2302
                            fill_rectangle(&sl->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, (LIST_NOT_USED&0xFF), 1);
2303 2304
                    }
            }
2305
            for (list = 0; list < sl->list_count; list++) {
2306 2307
                for(i=0; i<2; i++){
                    if(IS_DIR(mb_type, i, list)){
2308
                        int mx,my,mpx,mpy;
2309
                        pred_8x16_motion(h, sl, i*4, list, sl->ref_cache[list][ scan8[0] + 2*i ], &mx, &my);
2310
                        DECODE_CABAC_MB_MVD(sl, list, 4*i)
2311

2312
                        ff_tlog(h->avctx, "final mv:%d %d\n", mx, my);
2313
                        fill_rectangle(sl->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack8to16(mpx,mpy), 2);
2314
                        fill_rectangle(sl->mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack16to32(mx,my), 4);
2315
                    }else{
2316
                        fill_rectangle(sl->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 2);
2317
                        fill_rectangle(sl->mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 4);
2318 2319 2320 2321 2322 2323 2324 2325
                    }
                }
            }
        }
    }

   if( IS_INTER( mb_type ) ) {
        h->chroma_pred_mode_table[mb_xy] = 0;
2326
        write_back_motion(h, sl, mb_type);
2327 2328 2329
   }

    if( !IS_INTRA16x16( mb_type ) ) {
2330
        cbp  = decode_cabac_mb_cbp_luma(sl);
2331
        if(decode_chroma)
2332
            cbp |= decode_cabac_mb_cbp_chroma(sl) << 4;
2333 2334
    } else {
        if (!decode_chroma && cbp>15) {
2335
            av_log(h->avctx, AV_LOG_ERROR, "gray chroma\n");
2336 2337
            return AVERROR_INVALIDDATA;
        }
2338 2339
    }

2340
    h->cbp_table[mb_xy] = sl->cbp = cbp;
2341 2342

    if( dct8x8_allowed && (cbp&15) && !IS_INTRA( mb_type ) ) {
2343
        mb_type |= MB_TYPE_8x8DCT * get_cabac_noinline(&sl->cabac, &sl->cabac_state[399 + sl->neighbor_transform_size]);
2344
    }
2345 2346 2347

    /* It would be better to do this in fill_decode_caches, but we don't know
     * the transform mode of the current macroblock there. */
2348
    if (CHROMA444(h) && IS_8x8DCT(mb_type)){
2349
        int i;
2350
        uint8_t *nnz_cache = sl->non_zero_count_cache;
2351
        for (i = 0; i < 2; i++){
2352
            if (sl->left_type[LEFT(i)] && !IS_8x8DCT(sl->left_type[LEFT(i)])) {
2353 2354 2355 2356 2357 2358
                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;
2359 2360
            }
        }
2361
        if (sl->top_type && !IS_8x8DCT(sl->top_type)){
2362
            uint32_t top_empty = CABAC(h) && !IS_INTRA(mb_type) ? 0 : 0x40404040;
2363 2364 2365
            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);
2366 2367
        }
    }
2368
    h->cur_pic.mb_type[mb_xy] = mb_type;
2369 2370

    if( cbp || IS_INTRA16x16( mb_type ) ) {
2371
        const uint8_t *scan, *scan8x8;
2372 2373 2374
        const uint32_t *qmul;

        if(IS_INTERLACED(mb_type)){
2375 2376
            scan8x8 = sl->qscale ? h->field_scan8x8 : h->field_scan8x8_q0;
            scan    = sl->qscale ? h->field_scan : h->field_scan_q0;
2377
        }else{
2378 2379
            scan8x8 = sl->qscale ? h->zigzag_scan8x8 : h->zigzag_scan8x8_q0;
            scan    = sl->qscale ? h->zigzag_scan : h->zigzag_scan_q0;
2380 2381
        }

2382
        // decode_cabac_mb_dqp
2383
        if(get_cabac_noinline( &sl->cabac, &sl->cabac_state[60 + (sl->last_qscale_diff != 0)])){
2384 2385
            int val = 1;
            int ctx= 2;
2386
            const int max_qp = 51 + 6*(sps->bit_depth_luma-8);
2387

2388
            while( get_cabac_noinline( &sl->cabac, &sl->cabac_state[60 + ctx] ) ) {
2389 2390
                ctx= 3;
                val++;
2391
                if(val > 2*max_qp){ //prevent infinite loop
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                    av_log(h->avctx, AV_LOG_ERROR, "cabac decode of qscale diff failed at %d %d\n", sl->mb_x, sl->mb_y);
2393 2394 2395 2396 2397 2398 2399 2400
                    return -1;
                }
            }

            if( val&0x01 )
                val=   (val + 1)>>1 ;
            else
                val= -((val + 1)>>1);
2401
            sl->last_qscale_diff = val;
2402 2403 2404 2405
            sl->qscale += val;
            if (((unsigned)sl->qscale) > max_qp){
                if (sl->qscale < 0) sl->qscale += max_qp + 1;
                else                sl->qscale -= max_qp + 1;
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Michael Niedermayer committed
2406
            }
2407 2408
            sl->chroma_qp[0] = get_chroma_qp(h, 0, sl->qscale);
            sl->chroma_qp[1] = get_chroma_qp(h, 1, sl->qscale);
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        }else
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            sl->last_qscale_diff=0;
2411

2412
        decode_cabac_luma_residual(h, sl, scan, scan8x8, pixel_shift, mb_type, cbp, 0);
2413
        if (CHROMA444(h)) {
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            decode_cabac_luma_residual(h, sl, scan, scan8x8, pixel_shift, mb_type, cbp, 1);
            decode_cabac_luma_residual(h, sl, scan, scan8x8, pixel_shift, mb_type, cbp, 2);
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        } else if (CHROMA422(h)) {
2417 2418
            if( cbp&0x30 ){
                int c;
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                for (c = 0; c < 2; c++)
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                    decode_cabac_residual_dc_422(h, sl, sl->mb + ((256 + 16*16*c) << pixel_shift), 3,
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                                                 CHROMA_DC_BLOCK_INDEX + c,
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                                                 ff_h264_chroma422_dc_scan, 8);
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            }

2425
            if( cbp&0x20 ) {
2426
                int c, i, i8x8;
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                for( c = 0; c < 2; c++ ) {
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                    int16_t *mb = sl->mb + (16*(16 + 16*c) << pixel_shift);
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                    qmul = h->ps.pps->dequant4_coeff[c+1+(IS_INTRA( mb_type ) ? 0:3)][sl->chroma_qp[c]];
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                    for (i8x8 = 0; i8x8 < 2; i8x8++) {
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                        for (i = 0; i < 4; i++) {
                            const int index = 16 + 16 * c + 8*i8x8 + i;
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                            decode_cabac_residual_nondc(h, sl, mb, 4, index, scan + 1, qmul, 15);
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                            mb += 16<<pixel_shift;
                        }
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                    }
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                }
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            } else {
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                fill_rectangle(&sl->non_zero_count_cache[scan8[16]], 4, 4, 8, 0, 1);
                fill_rectangle(&sl->non_zero_count_cache[scan8[32]], 4, 4, 8, 0, 1);
2441
            }
2442
        } else /* yuv420 */ {
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            if( cbp&0x30 ){
                int c;
2445
                for (c = 0; c < 2; c++)
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                    decode_cabac_residual_dc(h, sl, sl->mb + ((256 + 16 * 16 * c) << pixel_shift),
                                             3, CHROMA_DC_BLOCK_INDEX + c, ff_h264_chroma_dc_scan, 4);
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            }

2450 2451 2452
            if( cbp&0x20 ) {
                int c, i;
                for( c = 0; c < 2; c++ ) {
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                    qmul = h->ps.pps->dequant4_coeff[c+1+(IS_INTRA( mb_type ) ? 0:3)][sl->chroma_qp[c]];
2454 2455
                    for( i = 0; i < 4; i++ ) {
                        const int index = 16 + 16 * c + i;
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                        decode_cabac_residual_nondc(h, sl, sl->mb + (16*index << pixel_shift), 4, index, scan + 1, qmul, 15);
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                    }
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                }
2459
            } else {
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                fill_rectangle(&sl->non_zero_count_cache[scan8[16]], 4, 4, 8, 0, 1);
                fill_rectangle(&sl->non_zero_count_cache[scan8[32]], 4, 4, 8, 0, 1);
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            }
        }
    } else {
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        fill_rectangle(&sl->non_zero_count_cache[scan8[ 0]], 4, 4, 8, 0, 1);
        fill_rectangle(&sl->non_zero_count_cache[scan8[16]], 4, 4, 8, 0, 1);
        fill_rectangle(&sl->non_zero_count_cache[scan8[32]], 4, 4, 8, 0, 1);
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        sl->last_qscale_diff = 0;
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    }

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    h->cur_pic.qscale_table[mb_xy] = sl->qscale;
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    write_back_non_zero_count(h, sl);
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    return 0;
}