| /***************************************************************************** |
| * cabac.c: h264 encoder library |
| ***************************************************************************** |
| * Copyright (C) 2003-2008 x264 project |
| * |
| * Authors: Laurent Aimar <fenrir@via.ecp.fr> |
| * Loren Merritt <lorenm@u.washington.edu> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program 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 General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA. |
| *****************************************************************************/ |
| |
| #include "common.h" |
| |
| |
| static const int8_t x264_cabac_context_init_I[460][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 unused 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, x264_cabac_encode_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 }, |
| { 29, 9 }, { 35, 20 }, { 29, 36 }, { 14, 67 } |
| }; |
| |
| static const int8_t x264_cabac_context_init_PB[3][460][2] = |
| { |
| /* 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, x264_cabac_encode_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 }, |
| }, |
| |
| /* 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, x264_cabac_encode_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 }, |
| }, |
| |
| /* 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, x264_cabac_encode_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 }, |
| } |
| }; |
| |
| /* FIXME could avoid this duplication by reversing the order of states |
| * with MPS=0, but that would uglify the other tables */ |
| const uint8_t x264_cabac_range_lps[128][4] = |
| { |
| { 2, 2, 2, 2 }, |
| { 6, 7, 8, 9 }, { 6, 7, 9, 10 }, { 6, 8, 9, 11 }, |
| { 7, 8, 10, 11 }, { 7, 9, 10, 12 }, { 7, 9, 11, 12 }, |
| { 8, 9, 11, 13 }, { 8, 10, 12, 14 }, { 9, 11, 12, 14 }, |
| { 9, 11, 13, 15 }, { 10, 12, 14, 16 }, { 10, 12, 15, 17 }, |
| { 11, 13, 15, 18 }, { 11, 14, 16, 19 }, { 12, 14, 17, 20 }, |
| { 12, 15, 18, 21 }, { 13, 16, 19, 22 }, { 14, 17, 20, 23 }, |
| { 14, 18, 21, 24 }, { 15, 19, 22, 25 }, { 16, 20, 23, 27 }, |
| { 17, 21, 25, 28 }, { 18, 22, 26, 30 }, { 19, 23, 27, 31 }, |
| { 20, 24, 29, 33 }, { 21, 26, 30, 35 }, { 22, 27, 32, 37 }, |
| { 23, 28, 33, 39 }, { 24, 30, 35, 41 }, { 26, 31, 37, 43 }, |
| { 27, 33, 39, 45 }, { 29, 35, 41, 48 }, { 30, 37, 43, 50 }, |
| { 32, 39, 46, 53 }, { 33, 41, 48, 56 }, { 35, 43, 51, 59 }, |
| { 37, 45, 54, 62 }, { 39, 48, 56, 65 }, { 41, 50, 59, 69 }, |
| { 43, 53, 63, 72 }, { 46, 56, 66, 76 }, { 48, 59, 69, 80 }, |
| { 51, 62, 73, 85 }, { 53, 65, 77, 89 }, { 56, 69, 81, 94 }, |
| { 59, 72, 86, 99 }, { 62, 76, 90, 104 }, { 66, 80, 95, 110 }, |
| { 69, 85, 100, 116 }, { 73, 89, 105, 122 }, { 77, 94, 111, 128 }, |
| { 81, 99, 117, 135 }, { 85, 104, 123, 142 }, { 90, 110, 130, 150 }, |
| { 95, 116, 137, 158 }, { 100, 122, 144, 166 }, { 105, 128, 152, 175 }, |
| { 111, 135, 160, 185 }, { 116, 142, 169, 195 }, { 123, 150, 178, 205 }, |
| { 128, 158, 187, 216 }, { 128, 167, 197, 227 }, { 128, 176, 208, 240 }, |
| |
| { 128, 176, 208, 240 }, { 128, 167, 197, 227 }, { 128, 158, 187, 216 }, |
| { 123, 150, 178, 205 }, { 116, 142, 169, 195 }, { 111, 135, 160, 185 }, |
| { 105, 128, 152, 175 }, { 100, 122, 144, 166 }, { 95, 116, 137, 158 }, |
| { 90, 110, 130, 150 }, { 85, 104, 123, 142 }, { 81, 99, 117, 135 }, |
| { 77, 94, 111, 128 }, { 73, 89, 105, 122 }, { 69, 85, 100, 116 }, |
| { 66, 80, 95, 110 }, { 62, 76, 90, 104 }, { 59, 72, 86, 99 }, |
| { 56, 69, 81, 94 }, { 53, 65, 77, 89 }, { 51, 62, 73, 85 }, |
| { 48, 59, 69, 80 }, { 46, 56, 66, 76 }, { 43, 53, 63, 72 }, |
| { 41, 50, 59, 69 }, { 39, 48, 56, 65 }, { 37, 45, 54, 62 }, |
| { 35, 43, 51, 59 }, { 33, 41, 48, 56 }, { 32, 39, 46, 53 }, |
| { 30, 37, 43, 50 }, { 29, 35, 41, 48 }, { 27, 33, 39, 45 }, |
| { 26, 31, 37, 43 }, { 24, 30, 35, 41 }, { 23, 28, 33, 39 }, |
| { 22, 27, 32, 37 }, { 21, 26, 30, 35 }, { 20, 24, 29, 33 }, |
| { 19, 23, 27, 31 }, { 18, 22, 26, 30 }, { 17, 21, 25, 28 }, |
| { 16, 20, 23, 27 }, { 15, 19, 22, 25 }, { 14, 18, 21, 24 }, |
| { 14, 17, 20, 23 }, { 13, 16, 19, 22 }, { 12, 15, 18, 21 }, |
| { 12, 14, 17, 20 }, { 11, 14, 16, 19 }, { 11, 13, 15, 18 }, |
| { 10, 12, 15, 17 }, { 10, 12, 14, 16 }, { 9, 11, 13, 15 }, |
| { 9, 11, 12, 14 }, { 8, 10, 12, 14 }, { 8, 9, 11, 13 }, |
| { 7, 9, 11, 12 }, { 7, 9, 10, 12 }, { 7, 8, 10, 11 }, |
| { 6, 8, 9, 11 }, { 6, 7, 9, 10 }, { 6, 7, 8, 9 }, |
| { 2, 2, 2, 2 }, |
| }; |
| |
| const uint8_t x264_cabac_transition[128][2] = |
| { |
| { 0, 0}, { 1, 25}, { 1, 25}, { 2, 26}, { 3, 26}, { 4, 26}, { 5, 27}, { 6, 27}, |
| { 7, 27}, { 8, 28}, { 9, 28}, { 10, 28}, { 11, 29}, { 12, 29}, { 13, 30}, { 14, 30}, |
| { 15, 30}, { 16, 31}, { 17, 31}, { 18, 32}, { 19, 33}, { 20, 33}, { 21, 33}, { 22, 34}, |
| { 23, 34}, { 24, 35}, { 25, 36}, { 26, 36}, { 27, 37}, { 28, 37}, { 29, 38}, { 30, 39}, |
| { 31, 39}, { 32, 40}, { 33, 41}, { 34, 41}, { 35, 42}, { 36, 42}, { 37, 44}, { 38, 44}, |
| { 39, 45}, { 40, 45}, { 41, 47}, { 42, 47}, { 43, 48}, { 44, 48}, { 45, 50}, { 46, 50}, |
| { 47, 51}, { 48, 52}, { 49, 52}, { 50, 54}, { 51, 54}, { 52, 55}, { 53, 56}, { 54, 57}, |
| { 55, 58}, { 56, 59}, { 57, 59}, { 58, 61}, { 59, 61}, { 60, 62}, { 61, 63}, { 62, 64}, |
| { 63, 65}, { 64, 66}, { 65, 67}, { 66, 68}, { 66, 69}, { 68, 70}, { 68, 71}, { 69, 72}, |
| { 70, 73}, { 71, 74}, { 72, 75}, { 73, 76}, { 73, 77}, { 75, 78}, { 75, 79}, { 76, 80}, |
| { 77, 81}, { 77, 82}, { 79, 83}, { 79, 84}, { 80, 85}, { 80, 86}, { 82, 87}, { 82, 88}, |
| { 83, 89}, { 83, 90}, { 85, 91}, { 85, 92}, { 86, 93}, { 86, 94}, { 87, 95}, { 88, 96}, |
| { 88, 97}, { 89, 98}, { 90, 99}, { 90,100}, { 91,101}, { 91,102}, { 92,103}, { 93,104}, |
| { 93,105}, { 94,106}, { 94,107}, { 94,108}, { 95,109}, { 96,110}, { 96,111}, { 97,112}, |
| { 97,113}, { 97,114}, { 98,115}, { 98,116}, { 99,117}, { 99,118}, { 99,119}, {100,120}, |
| {100,121}, {100,122}, {101,123}, {101,124}, {101,125}, {102,126}, {102,126}, {127,127}, |
| }; |
| |
| const uint8_t x264_cabac_renorm_shift[64]= { |
| 6,5,4,4,3,3,3,3,2,2,2,2,2,2,2,2, |
| 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, |
| 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, |
| }; |
| |
| static const uint8_t x264_cabac_probability[128] = |
| { |
| FIX8(0.9812), FIX8(0.9802), FIX8(0.9792), FIX8(0.9781), |
| FIX8(0.9769), FIX8(0.9757), FIX8(0.9744), FIX8(0.9730), |
| FIX8(0.9716), FIX8(0.9700), FIX8(0.9684), FIX8(0.9667), |
| FIX8(0.9650), FIX8(0.9631), FIX8(0.9611), FIX8(0.9590), |
| FIX8(0.9568), FIX8(0.9545), FIX8(0.9521), FIX8(0.9495), |
| FIX8(0.9468), FIX8(0.9440), FIX8(0.9410), FIX8(0.9378), |
| FIX8(0.9345), FIX8(0.9310), FIX8(0.9273), FIX8(0.9234), |
| FIX8(0.9193), FIX8(0.9150), FIX8(0.9105), FIX8(0.9057), |
| FIX8(0.9006), FIX8(0.8953), FIX8(0.8897), FIX8(0.8838), |
| FIX8(0.8776), FIX8(0.8710), FIX8(0.8641), FIX8(0.8569), |
| FIX8(0.8492), FIX8(0.8411), FIX8(0.8326), FIX8(0.8237), |
| FIX8(0.8143), FIX8(0.8043), FIX8(0.7938), FIX8(0.7828), |
| FIX8(0.7712), FIX8(0.7590), FIX8(0.7461), FIX8(0.7325), |
| FIX8(0.7182), FIX8(0.7031), FIX8(0.6872), FIX8(0.6705), |
| FIX8(0.6528), FIX8(0.6343), FIX8(0.6147), FIX8(0.5941), |
| FIX8(0.5724), FIX8(0.5495), FIX8(0.5254), FIX8(0.5000), |
| FIX8(0.5000), FIX8(0.4746), FIX8(0.4505), FIX8(0.4276), |
| FIX8(0.4059), FIX8(0.3853), FIX8(0.3657), FIX8(0.3472), |
| FIX8(0.3295), FIX8(0.3128), FIX8(0.2969), FIX8(0.2818), |
| FIX8(0.2675), FIX8(0.2539), FIX8(0.2410), FIX8(0.2288), |
| FIX8(0.2172), FIX8(0.2062), FIX8(0.1957), FIX8(0.1857), |
| FIX8(0.1763), FIX8(0.1674), FIX8(0.1589), FIX8(0.1508), |
| FIX8(0.1431), FIX8(0.1359), FIX8(0.1290), FIX8(0.1224), |
| FIX8(0.1162), FIX8(0.1103), FIX8(0.1047), FIX8(0.0994), |
| FIX8(0.0943), FIX8(0.0895), FIX8(0.0850), FIX8(0.0807), |
| FIX8(0.0766), FIX8(0.0727), FIX8(0.0690), FIX8(0.0655), |
| FIX8(0.0622), FIX8(0.0590), FIX8(0.0560), FIX8(0.0532), |
| FIX8(0.0505), FIX8(0.0479), FIX8(0.0455), FIX8(0.0432), |
| FIX8(0.0410), FIX8(0.0389), FIX8(0.0369), FIX8(0.0350), |
| FIX8(0.0333), FIX8(0.0316), FIX8(0.0300), FIX8(0.0284), |
| FIX8(0.0270), FIX8(0.0256), FIX8(0.0243), FIX8(0.0231), |
| FIX8(0.0219), FIX8(0.0208), FIX8(0.0198), FIX8(0.0187) |
| }; |
| /* -ln2(probability) */ |
| #define F(a,b) {FIX8(a),FIX8(b)} |
| const uint16_t x264_cabac_entropy[128][2] = |
| { |
| F(0.0273,5.7370), F(0.0288,5.6618), F(0.0303,5.5866), F(0.0320,5.5114), |
| F(0.0337,5.4362), F(0.0355,5.3610), F(0.0375,5.2859), F(0.0395,5.2106), |
| F(0.0416,5.1354), F(0.0439,5.0602), F(0.0463,4.9851), F(0.0488,4.9099), |
| F(0.0515,4.8347), F(0.0543,4.7595), F(0.0572,4.6843), F(0.0604,4.6091), |
| F(0.0637,4.5339), F(0.0671,4.4588), F(0.0708,4.3836), F(0.0747,4.3083), |
| F(0.0788,4.2332), F(0.0832,4.1580), F(0.0878,4.0828), F(0.0926,4.0076), |
| F(0.0977,3.9324), F(0.1032,3.8572), F(0.1089,3.7820), F(0.1149,3.7068), |
| F(0.1214,3.6316), F(0.1282,3.5565), F(0.1353,3.4813), F(0.1429,3.4061), |
| F(0.1510,3.3309), F(0.1596,3.2557), F(0.1686,3.1805), F(0.1782,3.1053), |
| F(0.1884,3.0301), F(0.1992,2.9549), F(0.2107,2.8797), F(0.2229,2.8046), |
| F(0.2358,2.7294), F(0.2496,2.6542), F(0.2642,2.5790), F(0.2798,2.5038), |
| F(0.2964,2.4286), F(0.3142,2.3534), F(0.3331,2.2782), F(0.3532,2.2030), |
| F(0.3748,2.1278), F(0.3979,2.0527), F(0.4226,1.9775), F(0.4491,1.9023), |
| F(0.4776,1.8271), F(0.5082,1.7519), F(0.5412,1.6767), F(0.5768,1.6015), |
| F(0.6152,1.5263), F(0.6568,1.4511), F(0.7020,1.3759), F(0.7513,1.3008), |
| F(0.8050,1.2256), F(0.8638,1.1504), F(0.9285,1.0752), F(1.0000,1.0000), |
| F(1.0000,1.0000), F(1.0752,0.9285), F(1.1504,0.8638), F(1.2256,0.8050), |
| F(1.3008,0.7513), F(1.3759,0.7020), F(1.4511,0.6568), F(1.5263,0.6152), |
| F(1.6015,0.5768), F(1.6767,0.5412), F(1.7519,0.5082), F(1.8271,0.4776), |
| F(1.9023,0.4491), F(1.9775,0.4226), F(2.0527,0.3979), F(2.1278,0.3748), |
| F(2.2030,0.3532), F(2.2782,0.3331), F(2.3534,0.3142), F(2.4286,0.2964), |
| F(2.5038,0.2798), F(2.5790,0.2642), F(2.6542,0.2496), F(2.7294,0.2358), |
| F(2.8046,0.2229), F(2.8797,0.2107), F(2.9549,0.1992), F(3.0301,0.1884), |
| F(3.1053,0.1782), F(3.1805,0.1686), F(3.2557,0.1596), F(3.3309,0.1510), |
| F(3.4061,0.1429), F(3.4813,0.1353), F(3.5565,0.1282), F(3.6316,0.1214), |
| F(3.7068,0.1149), F(3.7820,0.1089), F(3.8572,0.1032), F(3.9324,0.0977), |
| F(4.0076,0.0926), F(4.0828,0.0878), F(4.1580,0.0832), F(4.2332,0.0788), |
| F(4.3083,0.0747), F(4.3836,0.0708), F(4.4588,0.0671), F(4.5339,0.0637), |
| F(4.6091,0.0604), F(4.6843,0.0572), F(4.7595,0.0543), F(4.8347,0.0515), |
| F(4.9099,0.0488), F(4.9851,0.0463), F(5.0602,0.0439), F(5.1354,0.0416), |
| F(5.2106,0.0395), F(5.2859,0.0375), F(5.3610,0.0355), F(5.4362,0.0337), |
| F(5.5114,0.0320), F(5.5866,0.0303), F(5.6618,0.0288), F(5.7370,0.0273), |
| }; |
| |
| |
| /***************************************************************************** |
| * |
| *****************************************************************************/ |
| void x264_cabac_context_init( x264_cabac_t *cb, int i_slice_type, int i_qp, int i_model ) |
| { |
| const int8_t (*cabac_context_init)[460][2]; |
| int i; |
| |
| if( i_slice_type == SLICE_TYPE_I ) |
| { |
| cabac_context_init = &x264_cabac_context_init_I; |
| } |
| else |
| { |
| cabac_context_init = &x264_cabac_context_init_PB[i_model]; |
| } |
| |
| for( i = 0; i < 460; i++ ) |
| { |
| cb->state[i] = x264_clip3( (((*cabac_context_init)[i][0] * i_qp) >> 4) + (*cabac_context_init)[i][1], 1, 126 ); |
| } |
| } |
| |
| void x264_cabac_encode_init( x264_cabac_t *cb, uint8_t *p_data, uint8_t *p_end ) |
| { |
| cb->i_low = 0; |
| cb->i_range = 0x01FE; |
| cb->i_queue = -1; // the first bit will be shifted away and not written |
| cb->i_bytes_outstanding = 0; |
| cb->p_start = p_data; |
| cb->p = p_data; |
| cb->p_end = p_end; |
| } |
| |
| static inline void x264_cabac_putbyte( x264_cabac_t *cb ) |
| { |
| if( cb->i_queue >= 8 ) |
| { |
| int out = cb->i_low >> (cb->i_queue+2); |
| cb->i_low &= (4<<cb->i_queue)-1; |
| cb->i_queue -= 8; |
| |
| if( (out & 0xff) == 0xff ) |
| { |
| cb->i_bytes_outstanding++; |
| } |
| else |
| { |
| int carry = out >> 8; |
| int bytes_outstanding = cb->i_bytes_outstanding; |
| // this can't modify before the beginning of the stream because |
| // that would correspond to a probability > 1. |
| // it will write before the beginning of the stream, which is ok |
| // because a slice header always comes before cabac data. |
| // this can't carry beyond the one byte, because any 0xff bytes |
| // are in bytes_outstanding and thus not written yet. |
| cb->p[-1] += carry; |
| while( bytes_outstanding > 0 ) |
| { |
| *(cb->p++) = carry-1; |
| bytes_outstanding--; |
| } |
| *(cb->p++) = out; |
| cb->i_bytes_outstanding = 0; |
| } |
| } |
| } |
| |
| static inline void x264_cabac_encode_renorm( x264_cabac_t *cb ) |
| { |
| int shift = x264_cabac_renorm_shift[cb->i_range>>3]; |
| cb->i_range <<= shift; |
| cb->i_low <<= shift; |
| cb->i_queue += shift; |
| x264_cabac_putbyte( cb ); |
| } |
| |
| void x264_cabac_encode_decision_c( x264_cabac_t *cb, int i_ctx, int b ) |
| { |
| int i_state = cb->state[i_ctx]; |
| int i_range_lps = x264_cabac_range_lps[i_state][(cb->i_range>>6)&0x03]; |
| cb->i_range -= i_range_lps; |
| if( b != (i_state >> 6) ) |
| { |
| cb->i_low += cb->i_range; |
| cb->i_range = i_range_lps; |
| } |
| cb->state[i_ctx] = x264_cabac_transition[i_state][b]; |
| x264_cabac_encode_renorm( cb ); |
| } |
| |
| void x264_cabac_encode_bypass( x264_cabac_t *cb, int b ) |
| { |
| cb->i_low <<= 1; |
| cb->i_low += -b & cb->i_range; |
| cb->i_queue += 1; |
| x264_cabac_putbyte( cb ); |
| } |
| |
| void x264_cabac_encode_ue_bypass( x264_cabac_t *cb, int exp_bits, int val ) |
| { |
| int k, i; |
| uint32_t x; |
| for( k = exp_bits; val >= (1<<k); k++ ) |
| val -= 1<<k; |
| x = (((1<<(k-exp_bits))-1)<<(k+1))+val; |
| k = 2*k+1-exp_bits; |
| i = ((k-1)&7)+1; |
| do { |
| k -= i; |
| cb->i_low <<= i; |
| cb->i_low += ((x>>k)&0xff) * cb->i_range; |
| cb->i_queue += i; |
| x264_cabac_putbyte( cb ); |
| i = 8; |
| } while( k > 0 ); |
| } |
| |
| void x264_cabac_encode_terminal( x264_cabac_t *cb ) |
| { |
| cb->i_range -= 2; |
| x264_cabac_encode_renorm( cb ); |
| } |
| |
| void x264_cabac_encode_flush( x264_t *h, x264_cabac_t *cb ) |
| { |
| cb->i_low += cb->i_range - 2; |
| cb->i_low |= 1; |
| cb->i_low <<= 9; |
| cb->i_queue += 9; |
| x264_cabac_putbyte( cb ); |
| x264_cabac_putbyte( cb ); |
| cb->i_low <<= 8 - cb->i_queue; |
| cb->i_low |= (0x35a4e4f5 >> (h->i_frame & 31) & 1) << 10; |
| cb->i_queue = 8; |
| x264_cabac_putbyte( cb ); |
| |
| while( cb->i_bytes_outstanding > 0 ) |
| { |
| *(cb->p++) = 0xff; |
| cb->i_bytes_outstanding--; |
| } |
| } |
| |
