ffmpeg / libavcodec / h264_cabac.c @ ce5e49b0
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/*
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* H.26L/H.264/AVC/JVT/14496-10/... cabac decoding
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* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* H.264 / AVC / MPEG4 part10 cabac decoding.
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* @author Michael Niedermayer <michaelni@gmx.at>
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*/
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#define CABAC 1 |
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#include "internal.h" |
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#include "dsputil.h" |
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#include "avcodec.h" |
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#include "h264.h" |
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#include "h264data.h" |
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#include "h264_mvpred.h" |
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#include "golomb.h" |
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#include "cabac.h" |
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#if ARCH_X86
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#include "x86/h264_i386.h" |
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#endif
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//#undef NDEBUG
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#include <assert.h> |
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/* Cabac pre state table */
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static const int8_t cabac_context_init_I[460][2] = |
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{
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/* 0 - 10 */
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{ 20, -15 }, { 2, 54 }, { 3, 74 }, { 20, -15 },
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{ 2, 54 }, { 3, 74 }, { -28,127 }, { -23, 104 },
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{ -6, 53 }, { -1, 54 }, { 7, 51 },
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/* 11 - 23 unsused for I */
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
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{ 0, 0 },
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/* 24- 39 */
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
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/* 40 - 53 */
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
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{ 0, 0 }, { 0, 0 },
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/* 54 - 59 */
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
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{ 0, 0 }, { 0, 0 },
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/* 60 - 69 */
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{ 0, 41 }, { 0, 63 }, { 0, 63 }, { 0, 63 },
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{ -9, 83 }, { 4, 86 }, { 0, 97 }, { -7, 72 },
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{ 13, 41 }, { 3, 62 },
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/* 70 -> 87 */
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{ 0, 11 }, { 1, 55 }, { 0, 69 }, { -17, 127 },
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{ -13, 102 },{ 0, 82 }, { -7, 74 }, { -21, 107 },
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{ -27, 127 },{ -31, 127 },{ -24, 127 }, { -18, 95 },
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{ -27, 127 },{ -21, 114 },{ -30, 127 }, { -17, 123 },
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{ -12, 115 },{ -16, 122 },
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/* 88 -> 104 */
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{ -11, 115 },{ -12, 63 }, { -2, 68 }, { -15, 84 },
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{ -13, 104 },{ -3, 70 }, { -8, 93 }, { -10, 90 },
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{ -30, 127 },{ -1, 74 }, { -6, 97 }, { -7, 91 },
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{ -20, 127 },{ -4, 56 }, { -5, 82 }, { -7, 76 },
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{ -22, 125 },
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/* 105 -> 135 */
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{ -7, 93 }, { -11, 87 }, { -3, 77 }, { -5, 71 },
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{ -4, 63 }, { -4, 68 }, { -12, 84 }, { -7, 62 },
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{ -7, 65 }, { 8, 61 }, { 5, 56 }, { -2, 66 },
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{ 1, 64 }, { 0, 61 }, { -2, 78 }, { 1, 50 },
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{ 7, 52 }, { 10, 35 }, { 0, 44 }, { 11, 38 },
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{ 1, 45 }, { 0, 46 }, { 5, 44 }, { 31, 17 },
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{ 1, 51 }, { 7, 50 }, { 28, 19 }, { 16, 33 },
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{ 14, 62 }, { -13, 108 },{ -15, 100 },
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| 105 |
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/* 136 -> 165 */
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{ -13, 101 },{ -13, 91 }, { -12, 94 }, { -10, 88 },
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{ -16, 84 }, { -10, 86 }, { -7, 83 }, { -13, 87 },
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{ -19, 94 }, { 1, 70 }, { 0, 72 }, { -5, 74 },
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{ 18, 59 }, { -8, 102 }, { -15, 100 }, { 0, 95 },
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{ -4, 75 }, { 2, 72 }, { -11, 75 }, { -3, 71 },
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{ 15, 46 }, { -13, 69 }, { 0, 62 }, { 0, 65 },
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{ 21, 37 }, { -15, 72 }, { 9, 57 }, { 16, 54 },
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{ 0, 62 }, { 12, 72 },
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/* 166 -> 196 */
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{ 24, 0 }, { 15, 9 }, { 8, 25 }, { 13, 18 },
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{ 15, 9 }, { 13, 19 }, { 10, 37 }, { 12, 18 },
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{ 6, 29 }, { 20, 33 }, { 15, 30 }, { 4, 45 },
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| 120 |
{ 1, 58 }, { 0, 62 }, { 7, 61 }, { 12, 38 },
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| 121 |
{ 11, 45 }, { 15, 39 }, { 11, 42 }, { 13, 44 },
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{ 16, 45 }, { 12, 41 }, { 10, 49 }, { 30, 34 },
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| 123 |
{ 18, 42 }, { 10, 55 }, { 17, 51 }, { 17, 46 },
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{ 0, 89 }, { 26, -19 }, { 22, -17 },
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| 125 |
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/* 197 -> 226 */
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{ 26, -17 }, { 30, -25 }, { 28, -20 }, { 33, -23 },
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| 128 |
{ 37, -27 }, { 33, -23 }, { 40, -28 }, { 38, -17 },
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{ 33, -11 }, { 40, -15 }, { 41, -6 }, { 38, 1 },
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{ 41, 17 }, { 30, -6 }, { 27, 3 }, { 26, 22 },
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{ 37, -16 }, { 35, -4 }, { 38, -8 }, { 38, -3 },
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{ 37, 3 }, { 38, 5 }, { 42, 0 }, { 35, 16 },
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{ 39, 22 }, { 14, 48 }, { 27, 37 }, { 21, 60 },
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{ 12, 68 }, { 2, 97 },
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/* 227 -> 251 */
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{ -3, 71 }, { -6, 42 }, { -5, 50 }, { -3, 54 },
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{ -2, 62 }, { 0, 58 }, { 1, 63 }, { -2, 72 },
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{ -1, 74 }, { -9, 91 }, { -5, 67 }, { -5, 27 },
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{ -3, 39 }, { -2, 44 }, { 0, 46 }, { -16, 64 },
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{ -8, 68 }, { -10, 78 }, { -6, 77 }, { -10, 86 },
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{ -12, 92 }, { -15, 55 }, { -10, 60 }, { -6, 62 },
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{ -4, 65 },
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/* 252 -> 275 */
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{ -12, 73 }, { -8, 76 }, { -7, 80 }, { -9, 88 },
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{ -17, 110 },{ -11, 97 }, { -20, 84 }, { -11, 79 },
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{ -6, 73 }, { -4, 74 }, { -13, 86 }, { -13, 96 },
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{ -11, 97 }, { -19, 117 },{ -8, 78 }, { -5, 33 },
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{ -4, 48 }, { -2, 53 }, { -3, 62 }, { -13, 71 },
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{ -10, 79 }, { -12, 86 }, { -13, 90 }, { -14, 97 },
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/* 276 a bit special (not used, bypass is used instead) */
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{ 0, 0 },
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/* 277 -> 307 */
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{ -6, 93 }, { -6, 84 }, { -8, 79 }, { 0, 66 },
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{ -1, 71 }, { 0, 62 }, { -2, 60 }, { -2, 59 },
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{ -5, 75 }, { -3, 62 }, { -4, 58 }, { -9, 66 },
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{ -1, 79 }, { 0, 71 }, { 3, 68 }, { 10, 44 },
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{ -7, 62 }, { 15, 36 }, { 14, 40 }, { 16, 27 },
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{ 12, 29 }, { 1, 44 }, { 20, 36 }, { 18, 32 },
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{ 5, 42 }, { 1, 48 }, { 10, 62 }, { 17, 46 },
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{ 9, 64 }, { -12, 104 },{ -11, 97 },
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/* 308 -> 337 */
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{ -16, 96 }, { -7, 88 }, { -8, 85 }, { -7, 85 },
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{ -9, 85 }, { -13, 88 }, { 4, 66 }, { -3, 77 },
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{ -3, 76 }, { -6, 76 }, { 10, 58 }, { -1, 76 },
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| 170 |
{ -1, 83 }, { -7, 99 }, { -14, 95 }, { 2, 95 },
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{ 0, 76 }, { -5, 74 }, { 0, 70 }, { -11, 75 },
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{ 1, 68 }, { 0, 65 }, { -14, 73 }, { 3, 62 },
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{ 4, 62 }, { -1, 68 }, { -13, 75 }, { 11, 55 },
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{ 5, 64 }, { 12, 70 },
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/* 338 -> 368 */
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{ 15, 6 }, { 6, 19 }, { 7, 16 }, { 12, 14 },
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{ 18, 13 }, { 13, 11 }, { 13, 15 }, { 15, 16 },
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{ 12, 23 }, { 13, 23 }, { 15, 20 }, { 14, 26 },
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{ 14, 44 }, { 17, 40 }, { 17, 47 }, { 24, 17 },
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{ 21, 21 }, { 25, 22 }, { 31, 27 }, { 22, 29 },
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{ 19, 35 }, { 14, 50 }, { 10, 57 }, { 7, 63 },
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{ -2, 77 }, { -4, 82 }, { -3, 94 }, { 9, 69 },
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{ -12, 109 },{ 36, -35 }, { 36, -34 },
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/* 369 -> 398 */
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{ 32, -26 }, { 37, -30 }, { 44, -32 }, { 34, -18 },
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{ 34, -15 }, { 40, -15 }, { 33, -7 }, { 35, -5 },
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{ 33, 0 }, { 38, 2 }, { 33, 13 }, { 23, 35 },
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{ 13, 58 }, { 29, -3 }, { 26, 0 }, { 22, 30 },
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{ 31, -7 }, { 35, -15 }, { 34, -3 }, { 34, 3 },
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{ 36, -1 }, { 34, 5 }, { 32, 11 }, { 35, 5 },
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{ 34, 12 }, { 39, 11 }, { 30, 29 }, { 34, 26 },
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{ 29, 39 }, { 19, 66 },
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/* 399 -> 435 */
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{ 31, 21 }, { 31, 31 }, { 25, 50 },
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{ -17, 120 }, { -20, 112 }, { -18, 114 }, { -11, 85 },
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{ -15, 92 }, { -14, 89 }, { -26, 71 }, { -15, 81 },
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{ -14, 80 }, { 0, 68 }, { -14, 70 }, { -24, 56 },
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{ -23, 68 }, { -24, 50 }, { -11, 74 }, { 23, -13 },
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{ 26, -13 }, { 40, -15 }, { 49, -14 }, { 44, 3 },
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{ 45, 6 }, { 44, 34 }, { 33, 54 }, { 19, 82 },
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{ -3, 75 }, { -1, 23 }, { 1, 34 }, { 1, 43 },
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{ 0, 54 }, { -2, 55 }, { 0, 61 }, { 1, 64 },
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{ 0, 68 }, { -9, 92 },
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/* 436 -> 459 */
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{ -14, 106 }, { -13, 97 }, { -15, 90 }, { -12, 90 },
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{ -18, 88 }, { -10, 73 }, { -9, 79 }, { -14, 86 },
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{ -10, 73 }, { -10, 70 }, { -10, 69 }, { -5, 66 },
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{ -9, 64 }, { -5, 58 }, { 2, 59 }, { 21, -10 },
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{ 24, -11 }, { 28, -8 }, { 28, -1 }, { 29, 3 },
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{ 29, 9 }, { 35, 20 }, { 29, 36 }, { 14, 67 }
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}; |
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static const int8_t cabac_context_init_PB[3][460][2] = |
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{
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/* i_cabac_init_idc == 0 */
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{
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/* 0 - 10 */
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{ 20, -15 }, { 2, 54 }, { 3, 74 }, { 20, -15 },
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{ 2, 54 }, { 3, 74 }, { -28, 127 }, { -23, 104 },
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{ -6, 53 }, { -1, 54 }, { 7, 51 },
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/* 11 - 23 */
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{ 23, 33 }, { 23, 2 }, { 21, 0 }, { 1, 9 },
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{ 0, 49 }, { -37, 118 }, { 5, 57 }, { -13, 78 },
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{ -11, 65 }, { 1, 62 }, { 12, 49 }, { -4, 73 },
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{ 17, 50 },
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/* 24 - 39 */
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{ 18, 64 }, { 9, 43 }, { 29, 0 }, { 26, 67 },
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{ 16, 90 }, { 9, 104 }, { -46, 127 }, { -20, 104 },
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{ 1, 67 }, { -13, 78 }, { -11, 65 }, { 1, 62 },
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{ -6, 86 }, { -17, 95 }, { -6, 61 }, { 9, 45 },
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/* 40 - 53 */
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{ -3, 69 }, { -6, 81 }, { -11, 96 }, { 6, 55 },
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{ 7, 67 }, { -5, 86 }, { 2, 88 }, { 0, 58 },
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{ -3, 76 }, { -10, 94 }, { 5, 54 }, { 4, 69 },
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{ -3, 81 }, { 0, 88 },
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/* 54 - 59 */
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{ -7, 67 }, { -5, 74 }, { -4, 74 }, { -5, 80 },
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{ -7, 72 }, { 1, 58 },
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/* 60 - 69 */
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{ 0, 41 }, { 0, 63 }, { 0, 63 }, { 0, 63 },
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{ -9, 83 }, { 4, 86 }, { 0, 97 }, { -7, 72 },
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{ 13, 41 }, { 3, 62 },
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| 252 |
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/* 70 - 87 */
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{ 0, 45 }, { -4, 78 }, { -3, 96 }, { -27, 126 },
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{ -28, 98 }, { -25, 101 }, { -23, 67 }, { -28, 82 },
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{ -20, 94 }, { -16, 83 }, { -22, 110 }, { -21, 91 },
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{ -18, 102 }, { -13, 93 }, { -29, 127 }, { -7, 92 },
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{ -5, 89 }, { -7, 96 }, { -13, 108 }, { -3, 46 },
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| 259 |
{ -1, 65 }, { -1, 57 }, { -9, 93 }, { -3, 74 },
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| 260 |
{ -9, 92 }, { -8, 87 }, { -23, 126 }, { 5, 54 },
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{ 6, 60 }, { 6, 59 }, { 6, 69 }, { -1, 48 },
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{ 0, 68 }, { -4, 69 }, { -8, 88 },
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| 263 |
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| 264 |
/* 105 -> 165 */
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{ -2, 85 }, { -6, 78 }, { -1, 75 }, { -7, 77 },
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{ 2, 54 }, { 5, 50 }, { -3, 68 }, { 1, 50 },
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| 267 |
{ 6, 42 }, { -4, 81 }, { 1, 63 }, { -4, 70 },
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| 268 |
{ 0, 67 }, { 2, 57 }, { -2, 76 }, { 11, 35 },
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| 269 |
{ 4, 64 }, { 1, 61 }, { 11, 35 }, { 18, 25 },
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| 270 |
{ 12, 24 }, { 13, 29 }, { 13, 36 }, { -10, 93 },
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| 271 |
{ -7, 73 }, { -2, 73 }, { 13, 46 }, { 9, 49 },
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| 272 |
{ -7, 100 }, { 9, 53 }, { 2, 53 }, { 5, 53 },
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| 273 |
{ -2, 61 }, { 0, 56 }, { 0, 56 }, { -13, 63 },
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| 274 |
{ -5, 60 }, { -1, 62 }, { 4, 57 }, { -6, 69 },
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| 275 |
{ 4, 57 }, { 14, 39 }, { 4, 51 }, { 13, 68 },
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| 276 |
{ 3, 64 }, { 1, 61 }, { 9, 63 }, { 7, 50 },
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| 277 |
{ 16, 39 }, { 5, 44 }, { 4, 52 }, { 11, 48 },
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| 278 |
{ -5, 60 }, { -1, 59 }, { 0, 59 }, { 22, 33 },
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| 279 |
{ 5, 44 }, { 14, 43 }, { -1, 78 }, { 0, 60 },
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| 280 |
{ 9, 69 },
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| 281 |
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| 282 |
/* 166 - 226 */
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| 283 |
{ 11, 28 }, { 2, 40 }, { 3, 44 }, { 0, 49 },
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{ 0, 46 }, { 2, 44 }, { 2, 51 }, { 0, 47 },
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| 285 |
{ 4, 39 }, { 2, 62 }, { 6, 46 }, { 0, 54 },
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| 286 |
{ 3, 54 }, { 2, 58 }, { 4, 63 }, { 6, 51 },
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| 287 |
{ 6, 57 }, { 7, 53 }, { 6, 52 }, { 6, 55 },
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| 288 |
{ 11, 45 }, { 14, 36 }, { 8, 53 }, { -1, 82 },
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| 289 |
{ 7, 55 }, { -3, 78 }, { 15, 46 }, { 22, 31 },
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| 290 |
{ -1, 84 }, { 25, 7 }, { 30, -7 }, { 28, 3 },
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| 291 |
{ 28, 4 }, { 32, 0 }, { 34, -1 }, { 30, 6 },
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| 292 |
{ 30, 6 }, { 32, 9 }, { 31, 19 }, { 26, 27 },
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| 293 |
{ 26, 30 }, { 37, 20 }, { 28, 34 }, { 17, 70 },
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| 294 |
{ 1, 67 }, { 5, 59 }, { 9, 67 }, { 16, 30 },
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| 295 |
{ 18, 32 }, { 18, 35 }, { 22, 29 }, { 24, 31 },
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| 296 |
{ 23, 38 }, { 18, 43 }, { 20, 41 }, { 11, 63 },
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| 297 |
{ 9, 59 }, { 9, 64 }, { -1, 94 }, { -2, 89 },
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| 298 |
{ -9, 108 },
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| 299 |
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| 300 |
/* 227 - 275 */
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| 301 |
{ -6, 76 }, { -2, 44 }, { 0, 45 }, { 0, 52 },
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| 302 |
{ -3, 64 }, { -2, 59 }, { -4, 70 }, { -4, 75 },
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| 303 |
{ -8, 82 }, { -17, 102 }, { -9, 77 }, { 3, 24 },
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| 304 |
{ 0, 42 }, { 0, 48 }, { 0, 55 }, { -6, 59 },
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| 305 |
{ -7, 71 }, { -12, 83 }, { -11, 87 }, { -30, 119 },
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| 306 |
{ 1, 58 }, { -3, 29 }, { -1, 36 }, { 1, 38 },
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| 307 |
{ 2, 43 }, { -6, 55 }, { 0, 58 }, { 0, 64 },
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| 308 |
{ -3, 74 }, { -10, 90 }, { 0, 70 }, { -4, 29 },
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| 309 |
{ 5, 31 }, { 7, 42 }, { 1, 59 }, { -2, 58 },
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| 310 |
{ -3, 72 }, { -3, 81 }, { -11, 97 }, { 0, 58 },
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| 311 |
{ 8, 5 }, { 10, 14 }, { 14, 18 }, { 13, 27 },
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| 312 |
{ 2, 40 }, { 0, 58 }, { -3, 70 }, { -6, 79 },
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| 313 |
{ -8, 85 },
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| 314 |
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| 315 |
/* 276 a bit special (not used, bypass is used instead) */
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| 316 |
{ 0, 0 },
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| 317 |
|
| 318 |
/* 277 - 337 */
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| 319 |
{ -13, 106 }, { -16, 106 }, { -10, 87 }, { -21, 114 },
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| 320 |
{ -18, 110 }, { -14, 98 }, { -22, 110 }, { -21, 106 },
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| 321 |
{ -18, 103 }, { -21, 107 }, { -23, 108 }, { -26, 112 },
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| 322 |
{ -10, 96 }, { -12, 95 }, { -5, 91 }, { -9, 93 },
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| 323 |
{ -22, 94 }, { -5, 86 }, { 9, 67 }, { -4, 80 },
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| 324 |
{ -10, 85 }, { -1, 70 }, { 7, 60 }, { 9, 58 },
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| 325 |
{ 5, 61 }, { 12, 50 }, { 15, 50 }, { 18, 49 },
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| 326 |
{ 17, 54 }, { 10, 41 }, { 7, 46 }, { -1, 51 },
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| 327 |
{ 7, 49 }, { 8, 52 }, { 9, 41 }, { 6, 47 },
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| 328 |
{ 2, 55 }, { 13, 41 }, { 10, 44 }, { 6, 50 },
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| 329 |
{ 5, 53 }, { 13, 49 }, { 4, 63 }, { 6, 64 },
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| 330 |
{ -2, 69 }, { -2, 59 }, { 6, 70 }, { 10, 44 },
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| 331 |
{ 9, 31 }, { 12, 43 }, { 3, 53 }, { 14, 34 },
|
| 332 |
{ 10, 38 }, { -3, 52 }, { 13, 40 }, { 17, 32 },
|
| 333 |
{ 7, 44 }, { 7, 38 }, { 13, 50 }, { 10, 57 },
|
| 334 |
{ 26, 43 },
|
| 335 |
|
| 336 |
/* 338 - 398 */
|
| 337 |
{ 14, 11 }, { 11, 14 }, { 9, 11 }, { 18, 11 },
|
| 338 |
{ 21, 9 }, { 23, -2 }, { 32, -15 }, { 32, -15 },
|
| 339 |
{ 34, -21 }, { 39, -23 }, { 42, -33 }, { 41, -31 },
|
| 340 |
{ 46, -28 }, { 38, -12 }, { 21, 29 }, { 45, -24 },
|
| 341 |
{ 53, -45 }, { 48, -26 }, { 65, -43 }, { 43, -19 },
|
| 342 |
{ 39, -10 }, { 30, 9 }, { 18, 26 }, { 20, 27 },
|
| 343 |
{ 0, 57 }, { -14, 82 }, { -5, 75 }, { -19, 97 },
|
| 344 |
{ -35, 125 }, { 27, 0 }, { 28, 0 }, { 31, -4 },
|
| 345 |
{ 27, 6 }, { 34, 8 }, { 30, 10 }, { 24, 22 },
|
| 346 |
{ 33, 19 }, { 22, 32 }, { 26, 31 }, { 21, 41 },
|
| 347 |
{ 26, 44 }, { 23, 47 }, { 16, 65 }, { 14, 71 },
|
| 348 |
{ 8, 60 }, { 6, 63 }, { 17, 65 }, { 21, 24 },
|
| 349 |
{ 23, 20 }, { 26, 23 }, { 27, 32 }, { 28, 23 },
|
| 350 |
{ 28, 24 }, { 23, 40 }, { 24, 32 }, { 28, 29 },
|
| 351 |
{ 23, 42 }, { 19, 57 }, { 22, 53 }, { 22, 61 },
|
| 352 |
{ 11, 86 },
|
| 353 |
|
| 354 |
/* 399 - 435 */
|
| 355 |
{ 12, 40 }, { 11, 51 }, { 14, 59 },
|
| 356 |
{ -4, 79 }, { -7, 71 }, { -5, 69 }, { -9, 70 },
|
| 357 |
{ -8, 66 }, { -10, 68 }, { -19, 73 }, { -12, 69 },
|
| 358 |
{ -16, 70 }, { -15, 67 }, { -20, 62 }, { -19, 70 },
|
| 359 |
{ -16, 66 }, { -22, 65 }, { -20, 63 }, { 9, -2 },
|
| 360 |
{ 26, -9 }, { 33, -9 }, { 39, -7 }, { 41, -2 },
|
| 361 |
{ 45, 3 }, { 49, 9 }, { 45, 27 }, { 36, 59 },
|
| 362 |
{ -6, 66 }, { -7, 35 }, { -7, 42 }, { -8, 45 },
|
| 363 |
{ -5, 48 }, { -12, 56 }, { -6, 60 }, { -5, 62 },
|
| 364 |
{ -8, 66 }, { -8, 76 },
|
| 365 |
|
| 366 |
/* 436 - 459 */
|
| 367 |
{ -5, 85 }, { -6, 81 }, { -10, 77 }, { -7, 81 },
|
| 368 |
{ -17, 80 }, { -18, 73 }, { -4, 74 }, { -10, 83 },
|
| 369 |
{ -9, 71 }, { -9, 67 }, { -1, 61 }, { -8, 66 },
|
| 370 |
{ -14, 66 }, { 0, 59 }, { 2, 59 }, { 21, -13 },
|
| 371 |
{ 33, -14 }, { 39, -7 }, { 46, -2 }, { 51, 2 },
|
| 372 |
{ 60, 6 }, { 61, 17 }, { 55, 34 }, { 42, 62 },
|
| 373 |
}, |
| 374 |
|
| 375 |
/* i_cabac_init_idc == 1 */
|
| 376 |
{
|
| 377 |
/* 0 - 10 */
|
| 378 |
{ 20, -15 }, { 2, 54 }, { 3, 74 }, { 20, -15 },
|
| 379 |
{ 2, 54 }, { 3, 74 }, { -28, 127 }, { -23, 104 },
|
| 380 |
{ -6, 53 }, { -1, 54 }, { 7, 51 },
|
| 381 |
|
| 382 |
/* 11 - 23 */
|
| 383 |
{ 22, 25 }, { 34, 0 }, { 16, 0 }, { -2, 9 },
|
| 384 |
{ 4, 41 }, { -29, 118 }, { 2, 65 }, { -6, 71 },
|
| 385 |
{ -13, 79 }, { 5, 52 }, { 9, 50 }, { -3, 70 },
|
| 386 |
{ 10, 54 },
|
| 387 |
|
| 388 |
/* 24 - 39 */
|
| 389 |
{ 26, 34 }, { 19, 22 }, { 40, 0 }, { 57, 2 },
|
| 390 |
{ 41, 36 }, { 26, 69 }, { -45, 127 }, { -15, 101 },
|
| 391 |
{ -4, 76 }, { -6, 71 }, { -13, 79 }, { 5, 52 },
|
| 392 |
{ 6, 69 }, { -13, 90 }, { 0, 52 }, { 8, 43 },
|
| 393 |
|
| 394 |
/* 40 - 53 */
|
| 395 |
{ -2, 69 },{ -5, 82 },{ -10, 96 },{ 2, 59 },
|
| 396 |
{ 2, 75 },{ -3, 87 },{ -3, 100 },{ 1, 56 },
|
| 397 |
{ -3, 74 },{ -6, 85 },{ 0, 59 },{ -3, 81 },
|
| 398 |
{ -7, 86 },{ -5, 95 },
|
| 399 |
|
| 400 |
/* 54 - 59 */
|
| 401 |
{ -1, 66 },{ -1, 77 },{ 1, 70 },{ -2, 86 },
|
| 402 |
{ -5, 72 },{ 0, 61 },
|
| 403 |
|
| 404 |
/* 60 - 69 */
|
| 405 |
{ 0, 41 }, { 0, 63 }, { 0, 63 }, { 0, 63 },
|
| 406 |
{ -9, 83 }, { 4, 86 }, { 0, 97 }, { -7, 72 },
|
| 407 |
{ 13, 41 }, { 3, 62 },
|
| 408 |
|
| 409 |
/* 70 - 104 */
|
| 410 |
{ 13, 15 }, { 7, 51 }, { 2, 80 }, { -39, 127 },
|
| 411 |
{ -18, 91 }, { -17, 96 }, { -26, 81 }, { -35, 98 },
|
| 412 |
{ -24, 102 }, { -23, 97 }, { -27, 119 }, { -24, 99 },
|
| 413 |
{ -21, 110 }, { -18, 102 }, { -36, 127 }, { 0, 80 },
|
| 414 |
{ -5, 89 }, { -7, 94 }, { -4, 92 }, { 0, 39 },
|
| 415 |
{ 0, 65 }, { -15, 84 }, { -35, 127 }, { -2, 73 },
|
| 416 |
{ -12, 104 }, { -9, 91 }, { -31, 127 }, { 3, 55 },
|
| 417 |
{ 7, 56 }, { 7, 55 }, { 8, 61 }, { -3, 53 },
|
| 418 |
{ 0, 68 }, { -7, 74 }, { -9, 88 },
|
| 419 |
|
| 420 |
/* 105 -> 165 */
|
| 421 |
{ -13, 103 }, { -13, 91 }, { -9, 89 }, { -14, 92 },
|
| 422 |
{ -8, 76 }, { -12, 87 }, { -23, 110 }, { -24, 105 },
|
| 423 |
{ -10, 78 }, { -20, 112 }, { -17, 99 }, { -78, 127 },
|
| 424 |
{ -70, 127 }, { -50, 127 }, { -46, 127 }, { -4, 66 },
|
| 425 |
{ -5, 78 }, { -4, 71 }, { -8, 72 }, { 2, 59 },
|
| 426 |
{ -1, 55 }, { -7, 70 }, { -6, 75 }, { -8, 89 },
|
| 427 |
{ -34, 119 }, { -3, 75 }, { 32, 20 }, { 30, 22 },
|
| 428 |
{ -44, 127 }, { 0, 54 }, { -5, 61 }, { 0, 58 },
|
| 429 |
{ -1, 60 }, { -3, 61 }, { -8, 67 }, { -25, 84 },
|
| 430 |
{ -14, 74 }, { -5, 65 }, { 5, 52 }, { 2, 57 },
|
| 431 |
{ 0, 61 }, { -9, 69 }, { -11, 70 }, { 18, 55 },
|
| 432 |
{ -4, 71 }, { 0, 58 }, { 7, 61 }, { 9, 41 },
|
| 433 |
{ 18, 25 }, { 9, 32 }, { 5, 43 }, { 9, 47 },
|
| 434 |
{ 0, 44 }, { 0, 51 }, { 2, 46 }, { 19, 38 },
|
| 435 |
{ -4, 66 }, { 15, 38 }, { 12, 42 }, { 9, 34 },
|
| 436 |
{ 0, 89 },
|
| 437 |
|
| 438 |
/* 166 - 226 */
|
| 439 |
{ 4, 45 }, { 10, 28 }, { 10, 31 }, { 33, -11 },
|
| 440 |
{ 52, -43 }, { 18, 15 }, { 28, 0 }, { 35, -22 },
|
| 441 |
{ 38, -25 }, { 34, 0 }, { 39, -18 }, { 32, -12 },
|
| 442 |
{ 102, -94 }, { 0, 0 }, { 56, -15 }, { 33, -4 },
|
| 443 |
{ 29, 10 }, { 37, -5 }, { 51, -29 }, { 39, -9 },
|
| 444 |
{ 52, -34 }, { 69, -58 }, { 67, -63 }, { 44, -5 },
|
| 445 |
{ 32, 7 }, { 55, -29 }, { 32, 1 }, { 0, 0 },
|
| 446 |
{ 27, 36 }, { 33, -25 }, { 34, -30 }, { 36, -28 },
|
| 447 |
{ 38, -28 }, { 38, -27 }, { 34, -18 }, { 35, -16 },
|
| 448 |
{ 34, -14 }, { 32, -8 }, { 37, -6 }, { 35, 0 },
|
| 449 |
{ 30, 10 }, { 28, 18 }, { 26, 25 }, { 29, 41 },
|
| 450 |
{ 0, 75 }, { 2, 72 }, { 8, 77 }, { 14, 35 },
|
| 451 |
{ 18, 31 }, { 17, 35 }, { 21, 30 }, { 17, 45 },
|
| 452 |
{ 20, 42 }, { 18, 45 }, { 27, 26 }, { 16, 54 },
|
| 453 |
{ 7, 66 }, { 16, 56 }, { 11, 73 }, { 10, 67 },
|
| 454 |
{ -10, 116 },
|
| 455 |
|
| 456 |
/* 227 - 275 */
|
| 457 |
{ -23, 112 }, { -15, 71 }, { -7, 61 }, { 0, 53 },
|
| 458 |
{ -5, 66 }, { -11, 77 }, { -9, 80 }, { -9, 84 },
|
| 459 |
{ -10, 87 }, { -34, 127 }, { -21, 101 }, { -3, 39 },
|
| 460 |
{ -5, 53 }, { -7, 61 }, { -11, 75 }, { -15, 77 },
|
| 461 |
{ -17, 91 }, { -25, 107 }, { -25, 111 }, { -28, 122 },
|
| 462 |
{ -11, 76 }, { -10, 44 }, { -10, 52 }, { -10, 57 },
|
| 463 |
{ -9, 58 }, { -16, 72 }, { -7, 69 }, { -4, 69 },
|
| 464 |
{ -5, 74 }, { -9, 86 }, { 2, 66 }, { -9, 34 },
|
| 465 |
{ 1, 32 }, { 11, 31 }, { 5, 52 }, { -2, 55 },
|
| 466 |
{ -2, 67 }, { 0, 73 }, { -8, 89 }, { 3, 52 },
|
| 467 |
{ 7, 4 }, { 10, 8 }, { 17, 8 }, { 16, 19 },
|
| 468 |
{ 3, 37 }, { -1, 61 }, { -5, 73 }, { -1, 70 },
|
| 469 |
{ -4, 78 },
|
| 470 |
|
| 471 |
/* 276 a bit special (not used, bypass is used instead) */
|
| 472 |
{ 0, 0 },
|
| 473 |
|
| 474 |
/* 277 - 337 */
|
| 475 |
{ -21, 126 }, { -23, 124 }, { -20, 110 }, { -26, 126 },
|
| 476 |
{ -25, 124 }, { -17, 105 }, { -27, 121 }, { -27, 117 },
|
| 477 |
{ -17, 102 }, { -26, 117 }, { -27, 116 }, { -33, 122 },
|
| 478 |
{ -10, 95 }, { -14, 100 }, { -8, 95 }, { -17, 111 },
|
| 479 |
{ -28, 114 }, { -6, 89 }, { -2, 80 }, { -4, 82 },
|
| 480 |
{ -9, 85 }, { -8, 81 }, { -1, 72 }, { 5, 64 },
|
| 481 |
{ 1, 67 }, { 9, 56 }, { 0, 69 }, { 1, 69 },
|
| 482 |
{ 7, 69 }, { -7, 69 }, { -6, 67 }, { -16, 77 },
|
| 483 |
{ -2, 64 }, { 2, 61 }, { -6, 67 }, { -3, 64 },
|
| 484 |
{ 2, 57 }, { -3, 65 }, { -3, 66 }, { 0, 62 },
|
| 485 |
{ 9, 51 }, { -1, 66 }, { -2, 71 }, { -2, 75 },
|
| 486 |
{ -1, 70 }, { -9, 72 }, { 14, 60 }, { 16, 37 },
|
| 487 |
{ 0, 47 }, { 18, 35 }, { 11, 37 }, { 12, 41 },
|
| 488 |
{ 10, 41 }, { 2, 48 }, { 12, 41 }, { 13, 41 },
|
| 489 |
{ 0, 59 }, { 3, 50 }, { 19, 40 }, { 3, 66 },
|
| 490 |
{ 18, 50 },
|
| 491 |
|
| 492 |
/* 338 - 398 */
|
| 493 |
{ 19, -6 }, { 18, -6 }, { 14, 0 }, { 26, -12 },
|
| 494 |
{ 31, -16 }, { 33, -25 }, { 33, -22 }, { 37, -28 },
|
| 495 |
{ 39, -30 }, { 42, -30 }, { 47, -42 }, { 45, -36 },
|
| 496 |
{ 49, -34 }, { 41, -17 }, { 32, 9 }, { 69, -71 },
|
| 497 |
{ 63, -63 }, { 66, -64 }, { 77, -74 }, { 54, -39 },
|
| 498 |
{ 52, -35 }, { 41, -10 }, { 36, 0 }, { 40, -1 },
|
| 499 |
{ 30, 14 }, { 28, 26 }, { 23, 37 }, { 12, 55 },
|
| 500 |
{ 11, 65 }, { 37, -33 }, { 39, -36 }, { 40, -37 },
|
| 501 |
{ 38, -30 }, { 46, -33 }, { 42, -30 }, { 40, -24 },
|
| 502 |
{ 49, -29 }, { 38, -12 }, { 40, -10 }, { 38, -3 },
|
| 503 |
{ 46, -5 }, { 31, 20 }, { 29, 30 }, { 25, 44 },
|
| 504 |
{ 12, 48 }, { 11, 49 }, { 26, 45 }, { 22, 22 },
|
| 505 |
{ 23, 22 }, { 27, 21 }, { 33, 20 }, { 26, 28 },
|
| 506 |
{ 30, 24 }, { 27, 34 }, { 18, 42 }, { 25, 39 },
|
| 507 |
{ 18, 50 }, { 12, 70 }, { 21, 54 }, { 14, 71 },
|
| 508 |
{ 11, 83 },
|
| 509 |
|
| 510 |
/* 399 - 435 */
|
| 511 |
{ 25, 32 }, { 21, 49 }, { 21, 54 },
|
| 512 |
{ -5, 85 }, { -6, 81 }, { -10, 77 }, { -7, 81 },
|
| 513 |
{ -17, 80 }, { -18, 73 }, { -4, 74 }, { -10, 83 },
|
| 514 |
{ -9, 71 }, { -9, 67 }, { -1, 61 }, { -8, 66 },
|
| 515 |
{ -14, 66 }, { 0, 59 }, { 2, 59 }, { 17, -10 },
|
| 516 |
{ 32, -13 }, { 42, -9 }, { 49, -5 }, { 53, 0 },
|
| 517 |
{ 64, 3 }, { 68, 10 }, { 66, 27 }, { 47, 57 },
|
| 518 |
{ -5, 71 }, { 0, 24 }, { -1, 36 }, { -2, 42 },
|
| 519 |
{ -2, 52 }, { -9, 57 }, { -6, 63 }, { -4, 65 },
|
| 520 |
{ -4, 67 }, { -7, 82 },
|
| 521 |
|
| 522 |
/* 436 - 459 */
|
| 523 |
{ -3, 81 }, { -3, 76 }, { -7, 72 }, { -6, 78 },
|
| 524 |
{ -12, 72 }, { -14, 68 }, { -3, 70 }, { -6, 76 },
|
| 525 |
{ -5, 66 }, { -5, 62 }, { 0, 57 }, { -4, 61 },
|
| 526 |
{ -9, 60 }, { 1, 54 }, { 2, 58 }, { 17, -10 },
|
| 527 |
{ 32, -13 }, { 42, -9 }, { 49, -5 }, { 53, 0 },
|
| 528 |
{ 64, 3 }, { 68, 10 }, { 66, 27 }, { 47, 57 },
|
| 529 |
}, |
| 530 |
|
| 531 |
/* i_cabac_init_idc == 2 */
|
| 532 |
{
|
| 533 |
/* 0 - 10 */
|
| 534 |
{ 20, -15 }, { 2, 54 }, { 3, 74 }, { 20, -15 },
|
| 535 |
{ 2, 54 }, { 3, 74 }, { -28, 127 }, { -23, 104 },
|
| 536 |
{ -6, 53 }, { -1, 54 }, { 7, 51 },
|
| 537 |
|
| 538 |
/* 11 - 23 */
|
| 539 |
{ 29, 16 }, { 25, 0 }, { 14, 0 }, { -10, 51 },
|
| 540 |
{ -3, 62 }, { -27, 99 }, { 26, 16 }, { -4, 85 },
|
| 541 |
{ -24, 102 }, { 5, 57 }, { 6, 57 }, { -17, 73 },
|
| 542 |
{ 14, 57 },
|
| 543 |
|
| 544 |
/* 24 - 39 */
|
| 545 |
{ 20, 40 }, { 20, 10 }, { 29, 0 }, { 54, 0 },
|
| 546 |
{ 37, 42 }, { 12, 97 }, { -32, 127 }, { -22, 117 },
|
| 547 |
{ -2, 74 }, { -4, 85 }, { -24, 102 }, { 5, 57 },
|
| 548 |
{ -6, 93 }, { -14, 88 }, { -6, 44 }, { 4, 55 },
|
| 549 |
|
| 550 |
/* 40 - 53 */
|
| 551 |
{ -11, 89 },{ -15, 103 },{ -21, 116 },{ 19, 57 },
|
| 552 |
{ 20, 58 },{ 4, 84 },{ 6, 96 },{ 1, 63 },
|
| 553 |
{ -5, 85 },{ -13, 106 },{ 5, 63 },{ 6, 75 },
|
| 554 |
{ -3, 90 },{ -1, 101 },
|
| 555 |
|
| 556 |
/* 54 - 59 */
|
| 557 |
{ 3, 55 },{ -4, 79 },{ -2, 75 },{ -12, 97 },
|
| 558 |
{ -7, 50 },{ 1, 60 },
|
| 559 |
|
| 560 |
/* 60 - 69 */
|
| 561 |
{ 0, 41 }, { 0, 63 }, { 0, 63 }, { 0, 63 },
|
| 562 |
{ -9, 83 }, { 4, 86 }, { 0, 97 }, { -7, 72 },
|
| 563 |
{ 13, 41 }, { 3, 62 },
|
| 564 |
|
| 565 |
/* 70 - 104 */
|
| 566 |
{ 7, 34 }, { -9, 88 }, { -20, 127 }, { -36, 127 },
|
| 567 |
{ -17, 91 }, { -14, 95 }, { -25, 84 }, { -25, 86 },
|
| 568 |
{ -12, 89 }, { -17, 91 }, { -31, 127 }, { -14, 76 },
|
| 569 |
{ -18, 103 }, { -13, 90 }, { -37, 127 }, { 11, 80 },
|
| 570 |
{ 5, 76 }, { 2, 84 }, { 5, 78 }, { -6, 55 },
|
| 571 |
{ 4, 61 }, { -14, 83 }, { -37, 127 }, { -5, 79 },
|
| 572 |
{ -11, 104 }, { -11, 91 }, { -30, 127 }, { 0, 65 },
|
| 573 |
{ -2, 79 }, { 0, 72 }, { -4, 92 }, { -6, 56 },
|
| 574 |
{ 3, 68 }, { -8, 71 }, { -13, 98 },
|
| 575 |
|
| 576 |
/* 105 -> 165 */
|
| 577 |
{ -4, 86 }, { -12, 88 }, { -5, 82 }, { -3, 72 },
|
| 578 |
{ -4, 67 }, { -8, 72 }, { -16, 89 }, { -9, 69 },
|
| 579 |
{ -1, 59 }, { 5, 66 }, { 4, 57 }, { -4, 71 },
|
| 580 |
{ -2, 71 }, { 2, 58 }, { -1, 74 }, { -4, 44 },
|
| 581 |
{ -1, 69 }, { 0, 62 }, { -7, 51 }, { -4, 47 },
|
| 582 |
{ -6, 42 }, { -3, 41 }, { -6, 53 }, { 8, 76 },
|
| 583 |
{ -9, 78 }, { -11, 83 }, { 9, 52 }, { 0, 67 },
|
| 584 |
{ -5, 90 }, { 1, 67 }, { -15, 72 }, { -5, 75 },
|
| 585 |
{ -8, 80 }, { -21, 83 }, { -21, 64 }, { -13, 31 },
|
| 586 |
{ -25, 64 }, { -29, 94 }, { 9, 75 }, { 17, 63 },
|
| 587 |
{ -8, 74 }, { -5, 35 }, { -2, 27 }, { 13, 91 },
|
| 588 |
{ 3, 65 }, { -7, 69 }, { 8, 77 }, { -10, 66 },
|
| 589 |
{ 3, 62 }, { -3, 68 }, { -20, 81 }, { 0, 30 },
|
| 590 |
{ 1, 7 }, { -3, 23 }, { -21, 74 }, { 16, 66 },
|
| 591 |
{ -23, 124 }, { 17, 37 }, { 44, -18 }, { 50, -34 },
|
| 592 |
{ -22, 127 },
|
| 593 |
|
| 594 |
/* 166 - 226 */
|
| 595 |
{ 4, 39 }, { 0, 42 }, { 7, 34 }, { 11, 29 },
|
| 596 |
{ 8, 31 }, { 6, 37 }, { 7, 42 }, { 3, 40 },
|
| 597 |
{ 8, 33 }, { 13, 43 }, { 13, 36 }, { 4, 47 },
|
| 598 |
{ 3, 55 }, { 2, 58 }, { 6, 60 }, { 8, 44 },
|
| 599 |
{ 11, 44 }, { 14, 42 }, { 7, 48 }, { 4, 56 },
|
| 600 |
{ 4, 52 }, { 13, 37 }, { 9, 49 }, { 19, 58 },
|
| 601 |
{ 10, 48 }, { 12, 45 }, { 0, 69 }, { 20, 33 },
|
| 602 |
{ 8, 63 }, { 35, -18 }, { 33, -25 }, { 28, -3 },
|
| 603 |
{ 24, 10 }, { 27, 0 }, { 34, -14 }, { 52, -44 },
|
| 604 |
{ 39, -24 }, { 19, 17 }, { 31, 25 }, { 36, 29 },
|
| 605 |
{ 24, 33 }, { 34, 15 }, { 30, 20 }, { 22, 73 },
|
| 606 |
{ 20, 34 }, { 19, 31 }, { 27, 44 }, { 19, 16 },
|
| 607 |
{ 15, 36 }, { 15, 36 }, { 21, 28 }, { 25, 21 },
|
| 608 |
{ 30, 20 }, { 31, 12 }, { 27, 16 }, { 24, 42 },
|
| 609 |
{ 0, 93 }, { 14, 56 }, { 15, 57 }, { 26, 38 },
|
| 610 |
{ -24, 127 },
|
| 611 |
|
| 612 |
/* 227 - 275 */
|
| 613 |
{ -24, 115 }, { -22, 82 }, { -9, 62 }, { 0, 53 },
|
| 614 |
{ 0, 59 }, { -14, 85 }, { -13, 89 }, { -13, 94 },
|
| 615 |
{ -11, 92 }, { -29, 127 }, { -21, 100 }, { -14, 57 },
|
| 616 |
{ -12, 67 }, { -11, 71 }, { -10, 77 }, { -21, 85 },
|
| 617 |
{ -16, 88 }, { -23, 104 }, { -15, 98 }, { -37, 127 },
|
| 618 |
{ -10, 82 }, { -8, 48 }, { -8, 61 }, { -8, 66 },
|
| 619 |
{ -7, 70 }, { -14, 75 }, { -10, 79 }, { -9, 83 },
|
| 620 |
{ -12, 92 }, { -18, 108 }, { -4, 79 }, { -22, 69 },
|
| 621 |
{ -16, 75 }, { -2, 58 }, { 1, 58 }, { -13, 78 },
|
| 622 |
{ -9, 83 }, { -4, 81 }, { -13, 99 }, { -13, 81 },
|
| 623 |
{ -6, 38 }, { -13, 62 }, { -6, 58 }, { -2, 59 },
|
| 624 |
{ -16, 73 }, { -10, 76 }, { -13, 86 }, { -9, 83 },
|
| 625 |
{ -10, 87 },
|
| 626 |
|
| 627 |
/* 276 a bit special (not used, bypass is used instead) */
|
| 628 |
{ 0, 0 },
|
| 629 |
|
| 630 |
/* 277 - 337 */
|
| 631 |
{ -22, 127 }, { -25, 127 }, { -25, 120 }, { -27, 127 },
|
| 632 |
{ -19, 114 }, { -23, 117 }, { -25, 118 }, { -26, 117 },
|
| 633 |
{ -24, 113 }, { -28, 118 }, { -31, 120 }, { -37, 124 },
|
| 634 |
{ -10, 94 }, { -15, 102 }, { -10, 99 }, { -13, 106 },
|
| 635 |
{ -50, 127 }, { -5, 92 }, { 17, 57 }, { -5, 86 },
|
| 636 |
{ -13, 94 }, { -12, 91 }, { -2, 77 }, { 0, 71 },
|
| 637 |
{ -1, 73 }, { 4, 64 }, { -7, 81 }, { 5, 64 },
|
| 638 |
{ 15, 57 }, { 1, 67 }, { 0, 68 }, { -10, 67 },
|
| 639 |
{ 1, 68 }, { 0, 77 }, { 2, 64 }, { 0, 68 },
|
| 640 |
{ -5, 78 }, { 7, 55 }, { 5, 59 }, { 2, 65 },
|
| 641 |
{ 14, 54 }, { 15, 44 }, { 5, 60 }, { 2, 70 },
|
| 642 |
{ -2, 76 }, { -18, 86 }, { 12, 70 }, { 5, 64 },
|
| 643 |
{ -12, 70 }, { 11, 55 }, { 5, 56 }, { 0, 69 },
|
| 644 |
{ 2, 65 }, { -6, 74 }, { 5, 54 }, { 7, 54 },
|
| 645 |
{ -6, 76 }, { -11, 82 }, { -2, 77 }, { -2, 77 },
|
| 646 |
{ 25, 42 },
|
| 647 |
|
| 648 |
/* 338 - 398 */
|
| 649 |
{ 17, -13 }, { 16, -9 }, { 17, -12 }, { 27, -21 },
|
| 650 |
{ 37, -30 }, { 41, -40 }, { 42, -41 }, { 48, -47 },
|
| 651 |
{ 39, -32 }, { 46, -40 }, { 52, -51 }, { 46, -41 },
|
| 652 |
{ 52, -39 }, { 43, -19 }, { 32, 11 }, { 61, -55 },
|
| 653 |
{ 56, -46 }, { 62, -50 }, { 81, -67 }, { 45, -20 },
|
| 654 |
{ 35, -2 }, { 28, 15 }, { 34, 1 }, { 39, 1 },
|
| 655 |
{ 30, 17 }, { 20, 38 }, { 18, 45 }, { 15, 54 },
|
| 656 |
{ 0, 79 }, { 36, -16 }, { 37, -14 }, { 37, -17 },
|
| 657 |
{ 32, 1 }, { 34, 15 }, { 29, 15 }, { 24, 25 },
|
| 658 |
{ 34, 22 }, { 31, 16 }, { 35, 18 }, { 31, 28 },
|
| 659 |
{ 33, 41 }, { 36, 28 }, { 27, 47 }, { 21, 62 },
|
| 660 |
{ 18, 31 }, { 19, 26 }, { 36, 24 }, { 24, 23 },
|
| 661 |
{ 27, 16 }, { 24, 30 }, { 31, 29 }, { 22, 41 },
|
| 662 |
{ 22, 42 }, { 16, 60 }, { 15, 52 }, { 14, 60 },
|
| 663 |
{ 3, 78 }, { -16, 123 }, { 21, 53 }, { 22, 56 },
|
| 664 |
{ 25, 61 },
|
| 665 |
|
| 666 |
/* 399 - 435 */
|
| 667 |
{ 21, 33 }, { 19, 50 }, { 17, 61 },
|
| 668 |
{ -3, 78 }, { -8, 74 }, { -9, 72 }, { -10, 72 },
|
| 669 |
{ -18, 75 }, { -12, 71 }, { -11, 63 }, { -5, 70 },
|
| 670 |
{ -17, 75 }, { -14, 72 }, { -16, 67 }, { -8, 53 },
|
| 671 |
{ -14, 59 }, { -9, 52 }, { -11, 68 }, { 9, -2 },
|
| 672 |
{ 30, -10 }, { 31, -4 }, { 33, -1 }, { 33, 7 },
|
| 673 |
{ 31, 12 }, { 37, 23 }, { 31, 38 }, { 20, 64 },
|
| 674 |
{ -9, 71 }, { -7, 37 }, { -8, 44 }, { -11, 49 },
|
| 675 |
{ -10, 56 }, { -12, 59 }, { -8, 63 }, { -9, 67 },
|
| 676 |
{ -6, 68 }, { -10, 79 },
|
| 677 |
|
| 678 |
/* 436 - 459 */
|
| 679 |
{ -3, 78 }, { -8, 74 }, { -9, 72 }, { -10, 72 },
|
| 680 |
{ -18, 75 }, { -12, 71 }, { -11, 63 }, { -5, 70 },
|
| 681 |
{ -17, 75 }, { -14, 72 }, { -16, 67 }, { -8, 53 },
|
| 682 |
{ -14, 59 }, { -9, 52 }, { -11, 68 }, { 9, -2 },
|
| 683 |
{ 30, -10 }, { 31, -4 }, { 33, -1 }, { 33, 7 },
|
| 684 |
{ 31, 12 }, { 37, 23 }, { 31, 38 }, { 20, 64 },
|
| 685 |
} |
| 686 |
}; |
| 687 |
|
| 688 |
void ff_h264_init_cabac_states(H264Context *h) {
|
| 689 |
MpegEncContext * const s = &h->s;
|
| 690 |
int i;
|
| 691 |
const int8_t (*tab)[2]; |
| 692 |
const int slice_qp = av_clip(s->qscale - 6*(h->sps.bit_depth_luma-8), 0, 51); |
| 693 |
|
| 694 |
if( h->slice_type_nos == AV_PICTURE_TYPE_I ) tab = cabac_context_init_I;
|
| 695 |
else tab = cabac_context_init_PB[h->cabac_init_idc];
|
| 696 |
|
| 697 |
/* calculate pre-state */
|
| 698 |
for( i= 0; i < 460; i++ ) { |
| 699 |
int pre = 2*(((tab[i][0] * slice_qp) >>4 ) + tab[i][1]) - 127; |
| 700 |
|
| 701 |
pre^= pre>>31;
|
| 702 |
if(pre > 124) |
| 703 |
pre= 124 + (pre&1); |
| 704 |
|
| 705 |
h->cabac_state[i] = pre; |
| 706 |
} |
| 707 |
} |
| 708 |
|
| 709 |
static int decode_cabac_field_decoding_flag(H264Context *h) { |
| 710 |
MpegEncContext * const s = &h->s;
|
| 711 |
const long mbb_xy = h->mb_xy - 2L*s->mb_stride; |
| 712 |
|
| 713 |
unsigned long ctx = 0; |
| 714 |
|
| 715 |
ctx += h->mb_field_decoding_flag & !!s->mb_x; //for FMO:(s->current_picture.mb_type[mba_xy]>>7)&(h->slice_table[mba_xy] == h->slice_num);
|
| 716 |
ctx += (s->current_picture.mb_type[mbb_xy]>>7)&(h->slice_table[mbb_xy] == h->slice_num);
|
| 717 |
|
| 718 |
return get_cabac_noinline( &h->cabac, &(h->cabac_state+70)[ctx] ); |
| 719 |
} |
| 720 |
|
| 721 |
static int decode_cabac_intra_mb_type(H264Context *h, int ctx_base, int intra_slice) { |
| 722 |
uint8_t *state= &h->cabac_state[ctx_base]; |
| 723 |
int mb_type;
|
| 724 |
|
| 725 |
if(intra_slice){
|
| 726 |
int ctx=0; |
| 727 |
if( h->left_type[0] & (MB_TYPE_INTRA16x16|MB_TYPE_INTRA_PCM)) |
| 728 |
ctx++; |
| 729 |
if( h->top_type & (MB_TYPE_INTRA16x16|MB_TYPE_INTRA_PCM))
|
| 730 |
ctx++; |
| 731 |
if( get_cabac_noinline( &h->cabac, &state[ctx] ) == 0 ) |
| 732 |
return 0; /* I4x4 */ |
| 733 |
state += 2;
|
| 734 |
}else{
|
| 735 |
if( get_cabac_noinline( &h->cabac, state ) == 0 ) |
| 736 |
return 0; /* I4x4 */ |
| 737 |
} |
| 738 |
|
| 739 |
if( get_cabac_terminate( &h->cabac ) )
|
| 740 |
return 25; /* PCM */ |
| 741 |
|
| 742 |
mb_type = 1; /* I16x16 */ |
| 743 |
mb_type += 12 * get_cabac_noinline( &h->cabac, &state[1] ); /* cbp_luma != 0 */ |
| 744 |
if( get_cabac_noinline( &h->cabac, &state[2] ) ) /* cbp_chroma */ |
| 745 |
mb_type += 4 + 4 * get_cabac_noinline( &h->cabac, &state[2+intra_slice] ); |
| 746 |
mb_type += 2 * get_cabac_noinline( &h->cabac, &state[3+intra_slice] ); |
| 747 |
mb_type += 1 * get_cabac_noinline( &h->cabac, &state[3+2*intra_slice] ); |
| 748 |
return mb_type;
|
| 749 |
} |
| 750 |
|
| 751 |
static int decode_cabac_mb_skip( H264Context *h, int mb_x, int mb_y ) { |
| 752 |
MpegEncContext * const s = &h->s;
|
| 753 |
int mba_xy, mbb_xy;
|
| 754 |
int ctx = 0; |
| 755 |
|
| 756 |
if(FRAME_MBAFF){ //FIXME merge with the stuff in fill_caches? |
| 757 |
int mb_xy = mb_x + (mb_y&~1)*s->mb_stride; |
| 758 |
mba_xy = mb_xy - 1;
|
| 759 |
if( (mb_y&1) |
| 760 |
&& h->slice_table[mba_xy] == h->slice_num |
| 761 |
&& MB_FIELD == !!IS_INTERLACED( s->current_picture.mb_type[mba_xy] ) ) |
| 762 |
mba_xy += s->mb_stride; |
| 763 |
if( MB_FIELD ){
|
| 764 |
mbb_xy = mb_xy - s->mb_stride; |
| 765 |
if( !(mb_y&1) |
| 766 |
&& h->slice_table[mbb_xy] == h->slice_num |
| 767 |
&& IS_INTERLACED( s->current_picture.mb_type[mbb_xy] ) ) |
| 768 |
mbb_xy -= s->mb_stride; |
| 769 |
}else
|
| 770 |
mbb_xy = mb_x + (mb_y-1)*s->mb_stride;
|
| 771 |
}else{
|
| 772 |
int mb_xy = h->mb_xy;
|
| 773 |
mba_xy = mb_xy - 1;
|
| 774 |
mbb_xy = mb_xy - (s->mb_stride << FIELD_PICTURE); |
| 775 |
} |
| 776 |
|
| 777 |
if( h->slice_table[mba_xy] == h->slice_num && !IS_SKIP( s->current_picture.mb_type[mba_xy] ))
|
| 778 |
ctx++; |
| 779 |
if( h->slice_table[mbb_xy] == h->slice_num && !IS_SKIP( s->current_picture.mb_type[mbb_xy] ))
|
| 780 |
ctx++; |
| 781 |
|
| 782 |
if( h->slice_type_nos == AV_PICTURE_TYPE_B )
|
| 783 |
ctx += 13;
|
| 784 |
return get_cabac_noinline( &h->cabac, &h->cabac_state[11+ctx] ); |
| 785 |
} |
| 786 |
|
| 787 |
static int decode_cabac_mb_intra4x4_pred_mode( H264Context *h, int pred_mode ) { |
| 788 |
int mode = 0; |
| 789 |
|
| 790 |
if( get_cabac( &h->cabac, &h->cabac_state[68] ) ) |
| 791 |
return pred_mode;
|
| 792 |
|
| 793 |
mode += 1 * get_cabac( &h->cabac, &h->cabac_state[69] ); |
| 794 |
mode += 2 * get_cabac( &h->cabac, &h->cabac_state[69] ); |
| 795 |
mode += 4 * get_cabac( &h->cabac, &h->cabac_state[69] ); |
| 796 |
|
| 797 |
return mode + ( mode >= pred_mode );
|
| 798 |
} |
| 799 |
|
| 800 |
static int decode_cabac_mb_chroma_pre_mode( H264Context *h) { |
| 801 |
const int mba_xy = h->left_mb_xy[0]; |
| 802 |
const int mbb_xy = h->top_mb_xy; |
| 803 |
|
| 804 |
int ctx = 0; |
| 805 |
|
| 806 |
/* No need to test for IS_INTRA4x4 and IS_INTRA16x16, as we set chroma_pred_mode_table to 0 */
|
| 807 |
if( h->left_type[0] && h->chroma_pred_mode_table[mba_xy] != 0 ) |
| 808 |
ctx++; |
| 809 |
|
| 810 |
if( h->top_type && h->chroma_pred_mode_table[mbb_xy] != 0 ) |
| 811 |
ctx++; |
| 812 |
|
| 813 |
if( get_cabac_noinline( &h->cabac, &h->cabac_state[64+ctx] ) == 0 ) |
| 814 |
return 0; |
| 815 |
|
| 816 |
if( get_cabac_noinline( &h->cabac, &h->cabac_state[64+3] ) == 0 ) |
| 817 |
return 1; |
| 818 |
if( get_cabac_noinline( &h->cabac, &h->cabac_state[64+3] ) == 0 ) |
| 819 |
return 2; |
| 820 |
else
|
| 821 |
return 3; |
| 822 |
} |
| 823 |
|
| 824 |
static int decode_cabac_mb_cbp_luma( H264Context *h) { |
| 825 |
int cbp_b, cbp_a, ctx, cbp = 0; |
| 826 |
|
| 827 |
cbp_a = h->left_cbp; |
| 828 |
cbp_b = h->top_cbp; |
| 829 |
|
| 830 |
ctx = !(cbp_a & 0x02) + 2 * !(cbp_b & 0x04); |
| 831 |
cbp += get_cabac_noinline(&h->cabac, &h->cabac_state[73 + ctx]);
|
| 832 |
ctx = !(cbp & 0x01) + 2 * !(cbp_b & 0x08); |
| 833 |
cbp += get_cabac_noinline(&h->cabac, &h->cabac_state[73 + ctx]) << 1; |
| 834 |
ctx = !(cbp_a & 0x08) + 2 * !(cbp & 0x01); |
| 835 |
cbp += get_cabac_noinline(&h->cabac, &h->cabac_state[73 + ctx]) << 2; |
| 836 |
ctx = !(cbp & 0x04) + 2 * !(cbp & 0x02); |
| 837 |
cbp += get_cabac_noinline(&h->cabac, &h->cabac_state[73 + ctx]) << 3; |
| 838 |
return cbp;
|
| 839 |
} |
| 840 |
static int decode_cabac_mb_cbp_chroma( H264Context *h) { |
| 841 |
int ctx;
|
| 842 |
int cbp_a, cbp_b;
|
| 843 |
|
| 844 |
cbp_a = (h->left_cbp>>4)&0x03; |
| 845 |
cbp_b = (h-> top_cbp>>4)&0x03; |
| 846 |
|
| 847 |
ctx = 0;
|
| 848 |
if( cbp_a > 0 ) ctx++; |
| 849 |
if( cbp_b > 0 ) ctx += 2; |
| 850 |
if( get_cabac_noinline( &h->cabac, &h->cabac_state[77 + ctx] ) == 0 ) |
| 851 |
return 0; |
| 852 |
|
| 853 |
ctx = 4;
|
| 854 |
if( cbp_a == 2 ) ctx++; |
| 855 |
if( cbp_b == 2 ) ctx += 2; |
| 856 |
return 1 + get_cabac_noinline( &h->cabac, &h->cabac_state[77 + ctx] ); |
| 857 |
} |
| 858 |
|
| 859 |
static int decode_cabac_p_mb_sub_type( H264Context *h ) { |
| 860 |
if( get_cabac( &h->cabac, &h->cabac_state[21] ) ) |
| 861 |
return 0; /* 8x8 */ |
| 862 |
if( !get_cabac( &h->cabac, &h->cabac_state[22] ) ) |
| 863 |
return 1; /* 8x4 */ |
| 864 |
if( get_cabac( &h->cabac, &h->cabac_state[23] ) ) |
| 865 |
return 2; /* 4x8 */ |
| 866 |
return 3; /* 4x4 */ |
| 867 |
} |
| 868 |
static int decode_cabac_b_mb_sub_type( H264Context *h ) { |
| 869 |
int type;
|
| 870 |
if( !get_cabac( &h->cabac, &h->cabac_state[36] ) ) |
| 871 |
return 0; /* B_Direct_8x8 */ |
| 872 |
if( !get_cabac( &h->cabac, &h->cabac_state[37] ) ) |
| 873 |
return 1 + get_cabac( &h->cabac, &h->cabac_state[39] ); /* B_L0_8x8, B_L1_8x8 */ |
| 874 |
type = 3;
|
| 875 |
if( get_cabac( &h->cabac, &h->cabac_state[38] ) ) { |
| 876 |
if( get_cabac( &h->cabac, &h->cabac_state[39] ) ) |
| 877 |
return 11 + get_cabac( &h->cabac, &h->cabac_state[39] ); /* B_L1_4x4, B_Bi_4x4 */ |
| 878 |
type += 4;
|
| 879 |
} |
| 880 |
type += 2*get_cabac( &h->cabac, &h->cabac_state[39] ); |
| 881 |
type += get_cabac( &h->cabac, &h->cabac_state[39] );
|
| 882 |
return type;
|
| 883 |
} |
| 884 |
|
| 885 |
static int decode_cabac_mb_ref( H264Context *h, int list, int n ) { |
| 886 |
int refa = h->ref_cache[list][scan8[n] - 1]; |
| 887 |
int refb = h->ref_cache[list][scan8[n] - 8]; |
| 888 |
int ref = 0; |
| 889 |
int ctx = 0; |
| 890 |
|
| 891 |
if( h->slice_type_nos == AV_PICTURE_TYPE_B) {
|
| 892 |
if( refa > 0 && !(h->direct_cache[scan8[n] - 1]&(MB_TYPE_DIRECT2>>1)) ) |
| 893 |
ctx++; |
| 894 |
if( refb > 0 && !(h->direct_cache[scan8[n] - 8]&(MB_TYPE_DIRECT2>>1)) ) |
| 895 |
ctx += 2;
|
| 896 |
} else {
|
| 897 |
if( refa > 0 ) |
| 898 |
ctx++; |
| 899 |
if( refb > 0 ) |
| 900 |
ctx += 2;
|
| 901 |
} |
| 902 |
|
| 903 |
while( get_cabac( &h->cabac, &h->cabac_state[54+ctx] ) ) { |
| 904 |
ref++; |
| 905 |
ctx = (ctx>>2)+4; |
| 906 |
if(ref >= 32 /*h->ref_list[list]*/){ |
| 907 |
return -1; |
| 908 |
} |
| 909 |
} |
| 910 |
return ref;
|
| 911 |
} |
| 912 |
|
| 913 |
static int decode_cabac_mb_mvd( H264Context *h, int ctxbase, int amvd, int *mvda) { |
| 914 |
int mvd;
|
| 915 |
|
| 916 |
if(!get_cabac(&h->cabac, &h->cabac_state[ctxbase+((amvd-3)>>(INT_BIT-1))+((amvd-33)>>(INT_BIT-1))+2])){ |
| 917 |
// if(!get_cabac(&h->cabac, &h->cabac_state[ctxbase+(amvd>2)+(amvd>32)])){
|
| 918 |
*mvda= 0;
|
| 919 |
return 0; |
| 920 |
} |
| 921 |
|
| 922 |
mvd= 1;
|
| 923 |
ctxbase+= 3;
|
| 924 |
while( mvd < 9 && get_cabac( &h->cabac, &h->cabac_state[ctxbase] ) ) { |
| 925 |
if( mvd < 4 ) |
| 926 |
ctxbase++; |
| 927 |
mvd++; |
| 928 |
} |
| 929 |
|
| 930 |
if( mvd >= 9 ) { |
| 931 |
int k = 3; |
| 932 |
while( get_cabac_bypass( &h->cabac ) ) {
|
| 933 |
mvd += 1 << k;
|
| 934 |
k++; |
| 935 |
if(k>24){ |
| 936 |
av_log(h->s.avctx, AV_LOG_ERROR, "overflow in decode_cabac_mb_mvd\n");
|
| 937 |
return INT_MIN;
|
| 938 |
} |
| 939 |
} |
| 940 |
while( k-- ) {
|
| 941 |
mvd += get_cabac_bypass( &h->cabac )<<k; |
| 942 |
} |
| 943 |
*mvda=mvd < 70 ? mvd : 70; |
| 944 |
}else
|
| 945 |
*mvda=mvd; |
| 946 |
return get_cabac_bypass_sign( &h->cabac, -mvd );
|
| 947 |
} |
| 948 |
|
| 949 |
#define DECODE_CABAC_MB_MVD( h, list, n )\
|
| 950 |
{\
|
| 951 |
int amvd0 = h->mvd_cache[list][scan8[n] - 1][0] +\ |
| 952 |
h->mvd_cache[list][scan8[n] - 8][0];\ |
| 953 |
int amvd1 = h->mvd_cache[list][scan8[n] - 1][1] +\ |
| 954 |
h->mvd_cache[list][scan8[n] - 8][1];\ |
| 955 |
\ |
| 956 |
mx += decode_cabac_mb_mvd( h, 40, amvd0, &mpx );\
|
| 957 |
my += decode_cabac_mb_mvd( h, 47, amvd1, &mpy );\
|
| 958 |
} |
| 959 |
|
| 960 |
static av_always_inline int get_cabac_cbf_ctx( H264Context *h, int cat, int idx, int is_dc ) { |
| 961 |
int nza, nzb;
|
| 962 |
int ctx = 0; |
| 963 |
|
| 964 |
if( is_dc ) {
|
| 965 |
if( cat == 0 ) { |
| 966 |
nza = h->left_cbp&0x100;
|
| 967 |
nzb = h-> top_cbp&0x100;
|
| 968 |
} else {
|
| 969 |
idx -= CHROMA_DC_BLOCK_INDEX; |
| 970 |
nza = (h->left_cbp>>(6+idx))&0x01; |
| 971 |
nzb = (h-> top_cbp>>(6+idx))&0x01; |
| 972 |
} |
| 973 |
} else {
|
| 974 |
assert(cat == 1 || cat == 2 || cat == 4); |
| 975 |
nza = h->non_zero_count_cache[scan8[idx] - 1];
|
| 976 |
nzb = h->non_zero_count_cache[scan8[idx] - 8];
|
| 977 |
} |
| 978 |
|
| 979 |
if( nza > 0 ) |
| 980 |
ctx++; |
| 981 |
|
| 982 |
if( nzb > 0 ) |
| 983 |
ctx += 2;
|
| 984 |
|
| 985 |
return ctx + 4 * cat; |
| 986 |
} |
| 987 |
|
| 988 |
DECLARE_ASM_CONST(1, uint8_t, last_coeff_flag_offset_8x8)[63] = { |
| 989 |
0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 990 |
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
| 991 |
3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, |
| 992 |
5, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8 |
| 993 |
}; |
| 994 |
|
| 995 |
static av_always_inline void decode_cabac_residual_internal( H264Context *h, DCTELEM *block, int cat, int n, const uint8_t *scantable, const uint32_t *qmul, int max_coeff, int is_dc ) { |
| 996 |
static const int significant_coeff_flag_offset[2][6] = { |
| 997 |
{ 105+0, 105+15, 105+29, 105+44, 105+47, 402 },
|
| 998 |
{ 277+0, 277+15, 277+29, 277+44, 277+47, 436 }
|
| 999 |
}; |
| 1000 |
static const int last_coeff_flag_offset[2][6] = { |
| 1001 |
{ 166+0, 166+15, 166+29, 166+44, 166+47, 417 },
|
| 1002 |
{ 338+0, 338+15, 338+29, 338+44, 338+47, 451 }
|
| 1003 |
}; |
| 1004 |
static const int coeff_abs_level_m1_offset[6] = { |
| 1005 |
227+0, 227+10, 227+20, 227+30, 227+39, 426 |
| 1006 |
}; |
| 1007 |
static const uint8_t significant_coeff_flag_offset_8x8[2][63] = { |
| 1008 |
{ 0, 1, 2, 3, 4, 5, 5, 4, 4, 3, 3, 4, 4, 4, 5, 5,
|
| 1009 |
4, 4, 4, 4, 3, 3, 6, 7, 7, 7, 8, 9,10, 9, 8, 7, |
| 1010 |
7, 6,11,12,13,11, 6, 7, 8, 9,14,10, 9, 8, 6,11, |
| 1011 |
12,13,11, 6, 9,14,10, 9,11,12,13,11,14,10,12 }, |
| 1012 |
{ 0, 1, 1, 2, 2, 3, 3, 4, 5, 6, 7, 7, 7, 8, 4, 5,
|
| 1013 |
6, 9,10,10, 8,11,12,11, 9, 9,10,10, 8,11,12,11, |
| 1014 |
9, 9,10,10, 8,11,12,11, 9, 9,10,10, 8,13,13, 9, |
| 1015 |
9,10,10, 8,13,13, 9, 9,10,10,14,14,14,14,14 } |
| 1016 |
}; |
| 1017 |
/* node ctx: 0..3: abslevel1 (with abslevelgt1 == 0).
|
| 1018 |
* 4..7: abslevelgt1 + 3 (and abslevel1 doesn't matter).
|
| 1019 |
* map node ctx => cabac ctx for level=1 */
|
| 1020 |
static const uint8_t coeff_abs_level1_ctx[8] = { 1, 2, 3, 4, 0, 0, 0, 0 }; |
| 1021 |
/* map node ctx => cabac ctx for level>1 */
|
| 1022 |
static const uint8_t coeff_abs_levelgt1_ctx[8] = { 5, 5, 5, 5, 6, 7, 8, 9 }; |
| 1023 |
static const uint8_t coeff_abs_level_transition[2][8] = { |
| 1024 |
/* update node ctx after decoding a level=1 */
|
| 1025 |
{ 1, 2, 3, 3, 4, 5, 6, 7 },
|
| 1026 |
/* update node ctx after decoding a level>1 */
|
| 1027 |
{ 4, 4, 4, 4, 5, 6, 7, 7 }
|
| 1028 |
}; |
| 1029 |
|
| 1030 |
int index[64]; |
| 1031 |
|
| 1032 |
int av_unused last;
|
| 1033 |
int coeff_count = 0; |
| 1034 |
int node_ctx = 0; |
| 1035 |
|
| 1036 |
uint8_t *significant_coeff_ctx_base; |
| 1037 |
uint8_t *last_coeff_ctx_base; |
| 1038 |
uint8_t *abs_level_m1_ctx_base; |
| 1039 |
|
| 1040 |
#if !ARCH_X86
|
| 1041 |
#define CABAC_ON_STACK
|
| 1042 |
#endif
|
| 1043 |
#ifdef CABAC_ON_STACK
|
| 1044 |
#define CC &cc
|
| 1045 |
CABACContext cc; |
| 1046 |
cc.range = h->cabac.range; |
| 1047 |
cc.low = h->cabac.low; |
| 1048 |
cc.bytestream= h->cabac.bytestream; |
| 1049 |
#else
|
| 1050 |
#define CC &h->cabac
|
| 1051 |
#endif
|
| 1052 |
|
| 1053 |
significant_coeff_ctx_base = h->cabac_state |
| 1054 |
+ significant_coeff_flag_offset[MB_FIELD][cat]; |
| 1055 |
last_coeff_ctx_base = h->cabac_state |
| 1056 |
+ last_coeff_flag_offset[MB_FIELD][cat]; |
| 1057 |
abs_level_m1_ctx_base = h->cabac_state |
| 1058 |
+ coeff_abs_level_m1_offset[cat]; |
| 1059 |
|
| 1060 |
if( !is_dc && cat == 5 ) { |
| 1061 |
#define DECODE_SIGNIFICANCE( coefs, sig_off, last_off ) \
|
| 1062 |
for(last= 0; last < coefs; last++) { \ |
| 1063 |
uint8_t *sig_ctx = significant_coeff_ctx_base + sig_off; \ |
| 1064 |
if( get_cabac( CC, sig_ctx )) { \
|
| 1065 |
uint8_t *last_ctx = last_coeff_ctx_base + last_off; \ |
| 1066 |
index[coeff_count++] = last; \ |
| 1067 |
if( get_cabac( CC, last_ctx ) ) { \
|
| 1068 |
last= max_coeff; \ |
| 1069 |
break; \
|
| 1070 |
} \ |
| 1071 |
} \ |
| 1072 |
}\ |
| 1073 |
if( last == max_coeff -1 ) {\ |
| 1074 |
index[coeff_count++] = last;\ |
| 1075 |
} |
| 1076 |
const uint8_t *sig_off = significant_coeff_flag_offset_8x8[MB_FIELD];
|
| 1077 |
#if ARCH_X86 && HAVE_7REGS && HAVE_EBX_AVAILABLE && !defined(BROKEN_RELOCATIONS)
|
| 1078 |
coeff_count= decode_significance_8x8_x86(CC, significant_coeff_ctx_base, index, sig_off); |
| 1079 |
} else {
|
| 1080 |
coeff_count= decode_significance_x86(CC, max_coeff, significant_coeff_ctx_base, index); |
| 1081 |
#else
|
| 1082 |
DECODE_SIGNIFICANCE( 63, sig_off[last], last_coeff_flag_offset_8x8[last] );
|
| 1083 |
} else {
|
| 1084 |
DECODE_SIGNIFICANCE( max_coeff - 1, last, last );
|
| 1085 |
#endif
|
| 1086 |
} |
| 1087 |
assert(coeff_count > 0);
|
| 1088 |
|
| 1089 |
if( is_dc ) {
|
| 1090 |
if( cat == 0 ) |
| 1091 |
h->cbp_table[h->mb_xy] |= 0x100;
|
| 1092 |
else
|
| 1093 |
h->cbp_table[h->mb_xy] |= 0x40 << (n - CHROMA_DC_BLOCK_INDEX);
|
| 1094 |
h->non_zero_count_cache[scan8[n]] = coeff_count; |
| 1095 |
} else {
|
| 1096 |
if( cat == 5 ) |
| 1097 |
fill_rectangle(&h->non_zero_count_cache[scan8[n]], 2, 2, 8, coeff_count, 1); |
| 1098 |
else {
|
| 1099 |
assert( cat == 1 || cat == 2 || cat == 4 ); |
| 1100 |
h->non_zero_count_cache[scan8[n]] = coeff_count; |
| 1101 |
} |
| 1102 |
} |
| 1103 |
|
| 1104 |
|
| 1105 |
#define STORE_BLOCK(type) \
|
| 1106 |
do {\
|
| 1107 |
uint8_t *ctx = coeff_abs_level1_ctx[node_ctx] + abs_level_m1_ctx_base;\ |
| 1108 |
\ |
| 1109 |
int j= scantable[index[--coeff_count]];\
|
| 1110 |
if( get_cabac( CC, ctx ) == 0 ) { \ |
| 1111 |
node_ctx = coeff_abs_level_transition[0][node_ctx]; \
|
| 1112 |
if( is_dc ) { \
|
| 1113 |
((type*)block)[j] = get_cabac_bypass_sign( CC, -1); \
|
| 1114 |
}else{ \
|
| 1115 |
((type*)block)[j] = (get_cabac_bypass_sign( CC, -qmul[j]) + 32) >> 6; \ |
| 1116 |
} \ |
| 1117 |
} else { \
|
| 1118 |
int coeff_abs = 2; \ |
| 1119 |
ctx = coeff_abs_levelgt1_ctx[node_ctx] + abs_level_m1_ctx_base; \ |
| 1120 |
node_ctx = coeff_abs_level_transition[1][node_ctx]; \
|
| 1121 |
\ |
| 1122 |
while( coeff_abs < 15 && get_cabac( CC, ctx ) ) { \ |
| 1123 |
coeff_abs++; \ |
| 1124 |
} \ |
| 1125 |
\ |
| 1126 |
if( coeff_abs >= 15 ) { \ |
| 1127 |
int j = 0; \ |
| 1128 |
while( get_cabac_bypass( CC ) ) { \
|
| 1129 |
j++; \ |
| 1130 |
} \ |
| 1131 |
\ |
| 1132 |
coeff_abs=1; \
|
| 1133 |
while( j-- ) { \
|
| 1134 |
coeff_abs += coeff_abs + get_cabac_bypass( CC ); \ |
| 1135 |
} \ |
| 1136 |
coeff_abs+= 14; \
|
| 1137 |
} \ |
| 1138 |
\ |
| 1139 |
if( is_dc ) { \
|
| 1140 |
((type*)block)[j] = get_cabac_bypass_sign( CC, -coeff_abs ); \ |
| 1141 |
}else{ \
|
| 1142 |
((type*)block)[j] = ((int)(get_cabac_bypass_sign( CC, -coeff_abs ) * qmul[j] + 32)) >> 6; \ |
| 1143 |
} \ |
| 1144 |
}\ |
| 1145 |
} while( coeff_count );
|
| 1146 |
|
| 1147 |
if (h->pixel_shift) {
|
| 1148 |
STORE_BLOCK(int32_t) |
| 1149 |
} else {
|
| 1150 |
STORE_BLOCK(int16_t) |
| 1151 |
} |
| 1152 |
#ifdef CABAC_ON_STACK
|
| 1153 |
h->cabac.range = cc.range ; |
| 1154 |
h->cabac.low = cc.low ; |
| 1155 |
h->cabac.bytestream= cc.bytestream; |
| 1156 |
#endif
|
| 1157 |
|
| 1158 |
} |
| 1159 |
|
| 1160 |
static void decode_cabac_residual_dc_internal( H264Context *h, DCTELEM *block, int cat, int n, const uint8_t *scantable, int max_coeff ) { |
| 1161 |
decode_cabac_residual_internal(h, block, cat, n, scantable, NULL, max_coeff, 1); |
| 1162 |
} |
| 1163 |
|
| 1164 |
static void decode_cabac_residual_nondc_internal( H264Context *h, DCTELEM *block, int cat, int n, const uint8_t *scantable, const uint32_t *qmul, int max_coeff ) { |
| 1165 |
decode_cabac_residual_internal(h, block, cat, n, scantable, qmul, max_coeff, 0);
|
| 1166 |
} |
| 1167 |
|
| 1168 |
/* cat: 0-> DC 16x16 n = 0
|
| 1169 |
* 1-> AC 16x16 n = luma4x4idx
|
| 1170 |
* 2-> Luma4x4 n = luma4x4idx
|
| 1171 |
* 3-> DC Chroma n = iCbCr
|
| 1172 |
* 4-> AC Chroma n = 16 + 4 * iCbCr + chroma4x4idx
|
| 1173 |
* 5-> Luma8x8 n = 4 * luma8x8idx */
|
| 1174 |
|
| 1175 |
/* Partially inline the CABAC residual decode: inline the coded block flag.
|
| 1176 |
* This has very little impact on binary size and improves performance
|
| 1177 |
* because it allows improved constant propagation into get_cabac_cbf_ctx,
|
| 1178 |
* as well as because most blocks have zero CBFs. */
|
| 1179 |
|
| 1180 |
static av_always_inline void decode_cabac_residual_dc( H264Context *h, DCTELEM *block, int cat, int n, const uint8_t *scantable, int max_coeff ) { |
| 1181 |
/* read coded block flag */
|
| 1182 |
if( get_cabac( &h->cabac, &h->cabac_state[85 + get_cabac_cbf_ctx( h, cat, n, 1 ) ] ) == 0 ) { |
| 1183 |
h->non_zero_count_cache[scan8[n]] = 0;
|
| 1184 |
return;
|
| 1185 |
} |
| 1186 |
decode_cabac_residual_dc_internal( h, block, cat, n, scantable, max_coeff ); |
| 1187 |
} |
| 1188 |
|
| 1189 |
static av_always_inline void decode_cabac_residual_nondc( H264Context *h, DCTELEM *block, int cat, int n, const uint8_t *scantable, const uint32_t *qmul, int max_coeff ) { |
| 1190 |
/* read coded block flag */
|
| 1191 |
if( cat != 5 && get_cabac( &h->cabac, &h->cabac_state[85 + get_cabac_cbf_ctx( h, cat, n, 0 ) ] ) == 0 ) { |
| 1192 |
h->non_zero_count_cache[scan8[n]] = 0;
|
| 1193 |
return;
|
| 1194 |
} |
| 1195 |
decode_cabac_residual_nondc_internal( h, block, cat, n, scantable, qmul, max_coeff ); |
| 1196 |
} |
| 1197 |
|
| 1198 |
/**
|
| 1199 |
* decodes a macroblock
|
| 1200 |
* @return 0 if OK, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
|
| 1201 |
*/
|
| 1202 |
int ff_h264_decode_mb_cabac(H264Context *h) {
|
| 1203 |
MpegEncContext * const s = &h->s;
|
| 1204 |
int mb_xy;
|
| 1205 |
int mb_type, partition_count, cbp = 0; |
| 1206 |
int dct8x8_allowed= h->pps.transform_8x8_mode;
|
| 1207 |
|
| 1208 |
mb_xy = h->mb_xy = s->mb_x + s->mb_y*s->mb_stride; |
| 1209 |
|
| 1210 |
tprintf(s->avctx, "pic:%d mb:%d/%d\n", h->frame_num, s->mb_x, s->mb_y);
|
| 1211 |
if( h->slice_type_nos != AV_PICTURE_TYPE_I ) {
|
| 1212 |
int skip;
|
| 1213 |
/* a skipped mb needs the aff flag from the following mb */
|
| 1214 |
if( FRAME_MBAFF && (s->mb_y&1)==1 && h->prev_mb_skipped ) |
| 1215 |
skip = h->next_mb_skipped; |
| 1216 |
else
|
| 1217 |
skip = decode_cabac_mb_skip( h, s->mb_x, s->mb_y ); |
| 1218 |
/* read skip flags */
|
| 1219 |
if( skip ) {
|
| 1220 |
if( FRAME_MBAFF && (s->mb_y&1)==0 ){ |
| 1221 |
s->current_picture.mb_type[mb_xy] = MB_TYPE_SKIP; |
| 1222 |
h->next_mb_skipped = decode_cabac_mb_skip( h, s->mb_x, s->mb_y+1 );
|
| 1223 |
if(!h->next_mb_skipped)
|
| 1224 |
h->mb_mbaff = h->mb_field_decoding_flag = decode_cabac_field_decoding_flag(h); |
| 1225 |
} |
| 1226 |
|
| 1227 |
decode_mb_skip(h); |
| 1228 |
|
| 1229 |
h->cbp_table[mb_xy] = 0;
|
| 1230 |
h->chroma_pred_mode_table[mb_xy] = 0;
|
| 1231 |
h->last_qscale_diff = 0;
|
| 1232 |
|
| 1233 |
return 0; |
| 1234 |
|
| 1235 |
} |
| 1236 |
} |
| 1237 |
if(FRAME_MBAFF){
|
| 1238 |
if( (s->mb_y&1) == 0 ) |
| 1239 |
h->mb_mbaff = |
| 1240 |
h->mb_field_decoding_flag = decode_cabac_field_decoding_flag(h); |
| 1241 |
} |
| 1242 |
|
| 1243 |
h->prev_mb_skipped = 0;
|
| 1244 |
|
| 1245 |
fill_decode_neighbors(h, -(MB_FIELD)); |
| 1246 |
|
| 1247 |
if( h->slice_type_nos == AV_PICTURE_TYPE_B ) {
|
| 1248 |
int ctx = 0; |
| 1249 |
assert(h->slice_type_nos == AV_PICTURE_TYPE_B); |
| 1250 |
|
| 1251 |
if( !IS_DIRECT( h->left_type[0]-1 ) ) |
| 1252 |
ctx++; |
| 1253 |
if( !IS_DIRECT( h->top_type-1 ) ) |
| 1254 |
ctx++; |
| 1255 |
|
| 1256 |
if( !get_cabac_noinline( &h->cabac, &h->cabac_state[27+ctx] ) ){ |
| 1257 |
mb_type= 0; /* B_Direct_16x16 */ |
| 1258 |
}else if( !get_cabac_noinline( &h->cabac, &h->cabac_state[27+3] ) ) { |
| 1259 |
mb_type= 1 + get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] ); /* B_L[01]_16x16 */ |
| 1260 |
}else{
|
| 1261 |
int bits;
|
| 1262 |
bits = get_cabac_noinline( &h->cabac, &h->cabac_state[27+4] ) << 3; |
| 1263 |
bits+= get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] ) << 2; |
| 1264 |
bits+= get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] ) << 1; |
| 1265 |
bits+= get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] ); |
| 1266 |
if( bits < 8 ){ |
| 1267 |
mb_type= bits + 3; /* B_Bi_16x16 through B_L1_L0_16x8 */ |
| 1268 |
}else if( bits == 13 ){ |
| 1269 |
mb_type= decode_cabac_intra_mb_type(h, 32, 0); |
| 1270 |
goto decode_intra_mb;
|
| 1271 |
}else if( bits == 14 ){ |
| 1272 |
mb_type= 11; /* B_L1_L0_8x16 */ |
| 1273 |
}else if( bits == 15 ){ |
| 1274 |
mb_type= 22; /* B_8x8 */ |
| 1275 |
}else{
|
| 1276 |
bits= ( bits<<1 ) + get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] ); |
| 1277 |
mb_type= bits - 4; /* B_L0_Bi_* through B_Bi_Bi_* */ |
| 1278 |
} |
| 1279 |
} |
| 1280 |
partition_count= b_mb_type_info[mb_type].partition_count; |
| 1281 |
mb_type= b_mb_type_info[mb_type].type; |
| 1282 |
} else if( h->slice_type_nos == AV_PICTURE_TYPE_P ) { |
| 1283 |
if( get_cabac_noinline( &h->cabac, &h->cabac_state[14] ) == 0 ) { |
| 1284 |
/* P-type */
|
| 1285 |
if( get_cabac_noinline( &h->cabac, &h->cabac_state[15] ) == 0 ) { |
| 1286 |
/* P_L0_D16x16, P_8x8 */
|
| 1287 |
mb_type= 3 * get_cabac_noinline( &h->cabac, &h->cabac_state[16] ); |
| 1288 |
} else {
|
| 1289 |
/* P_L0_D8x16, P_L0_D16x8 */
|
| 1290 |
mb_type= 2 - get_cabac_noinline( &h->cabac, &h->cabac_state[17] ); |
| 1291 |
} |
| 1292 |
partition_count= p_mb_type_info[mb_type].partition_count; |
| 1293 |
mb_type= p_mb_type_info[mb_type].type; |
| 1294 |
} else {
|
| 1295 |
mb_type= decode_cabac_intra_mb_type(h, 17, 0); |
| 1296 |
goto decode_intra_mb;
|
| 1297 |
} |
| 1298 |
} else {
|
| 1299 |
mb_type= decode_cabac_intra_mb_type(h, 3, 1); |
| 1300 |
if(h->slice_type == AV_PICTURE_TYPE_SI && mb_type)
|
| 1301 |
mb_type--; |
| 1302 |
assert(h->slice_type_nos == AV_PICTURE_TYPE_I); |
| 1303 |
decode_intra_mb:
|
| 1304 |
partition_count = 0;
|
| 1305 |
cbp= i_mb_type_info[mb_type].cbp; |
| 1306 |
h->intra16x16_pred_mode= i_mb_type_info[mb_type].pred_mode; |
| 1307 |
mb_type= i_mb_type_info[mb_type].type; |
| 1308 |
} |
| 1309 |
if(MB_FIELD)
|
| 1310 |
mb_type |= MB_TYPE_INTERLACED; |
| 1311 |
|
| 1312 |
h->slice_table[ mb_xy ]= h->slice_num; |
| 1313 |
|
| 1314 |
if(IS_INTRA_PCM(mb_type)) {
|
| 1315 |
const int mb_size = 384*h->sps.bit_depth_luma/8; |
| 1316 |
const uint8_t *ptr;
|
| 1317 |
|
| 1318 |
// We assume these blocks are very rare so we do not optimize it.
|
| 1319 |
// FIXME The two following lines get the bitstream position in the cabac
|
| 1320 |
// decode, I think it should be done by a function in cabac.h (or cabac.c).
|
| 1321 |
ptr= h->cabac.bytestream; |
| 1322 |
if(h->cabac.low&0x1) ptr--; |
| 1323 |
if(CABAC_BITS==16){ |
| 1324 |
if(h->cabac.low&0x1FF) ptr--; |
| 1325 |
} |
| 1326 |
|
| 1327 |
// The pixels are stored in the same order as levels in h->mb array.
|
| 1328 |
memcpy(h->mb, ptr, 2*mb_size/3); ptr+=2*mb_size/3; |
| 1329 |
if(CHROMA){
|
| 1330 |
memcpy(h->mb+mb_size/3, ptr, mb_size/3); ptr+=mb_size/3; |
| 1331 |
} |
| 1332 |
|
| 1333 |
ff_init_cabac_decoder(&h->cabac, ptr, h->cabac.bytestream_end - ptr); |
| 1334 |
|
| 1335 |
// All blocks are present
|
| 1336 |
h->cbp_table[mb_xy] = 0x1ef;
|
| 1337 |
h->chroma_pred_mode_table[mb_xy] = 0;
|
| 1338 |
// In deblocking, the quantizer is 0
|
| 1339 |
s->current_picture.qscale_table[mb_xy]= 0;
|
| 1340 |
// All coeffs are present
|
| 1341 |
memset(h->non_zero_count[mb_xy], 16, 32); |
| 1342 |
s->current_picture.mb_type[mb_xy]= mb_type; |
| 1343 |
h->last_qscale_diff = 0;
|
| 1344 |
return 0; |
| 1345 |
} |
| 1346 |
|
| 1347 |
if(MB_MBAFF){
|
| 1348 |
h->ref_count[0] <<= 1; |
| 1349 |
h->ref_count[1] <<= 1; |
| 1350 |
} |
| 1351 |
|
| 1352 |
fill_decode_caches(h, mb_type); |
| 1353 |
|
| 1354 |
if( IS_INTRA( mb_type ) ) {
|
| 1355 |
int i, pred_mode;
|
| 1356 |
if( IS_INTRA4x4( mb_type ) ) {
|
| 1357 |
if( dct8x8_allowed && get_cabac_noinline( &h->cabac, &h->cabac_state[399 + h->neighbor_transform_size] ) ) { |
| 1358 |
mb_type |= MB_TYPE_8x8DCT; |
| 1359 |
for( i = 0; i < 16; i+=4 ) { |
| 1360 |
int pred = pred_intra_mode( h, i );
|
| 1361 |
int mode = decode_cabac_mb_intra4x4_pred_mode( h, pred );
|
| 1362 |
fill_rectangle( &h->intra4x4_pred_mode_cache[ scan8[i] ], 2, 2, 8, mode, 1 ); |
| 1363 |
} |
| 1364 |
} else {
|
| 1365 |
for( i = 0; i < 16; i++ ) { |
| 1366 |
int pred = pred_intra_mode( h, i );
|
| 1367 |
h->intra4x4_pred_mode_cache[ scan8[i] ] = decode_cabac_mb_intra4x4_pred_mode( h, pred ); |
| 1368 |
|
| 1369 |
//av_log( s->avctx, AV_LOG_ERROR, "i4x4 pred=%d mode=%d\n", pred, h->intra4x4_pred_mode_cache[ scan8[i] ] );
|
| 1370 |
} |
| 1371 |
} |
| 1372 |
ff_h264_write_back_intra_pred_mode(h); |
| 1373 |
if( ff_h264_check_intra4x4_pred_mode(h) < 0 ) return -1; |
| 1374 |
} else {
|
| 1375 |
h->intra16x16_pred_mode= ff_h264_check_intra_pred_mode( h, h->intra16x16_pred_mode ); |
| 1376 |
if( h->intra16x16_pred_mode < 0 ) return -1; |
| 1377 |
} |
| 1378 |
if(CHROMA){
|
| 1379 |
h->chroma_pred_mode_table[mb_xy] = |
| 1380 |
pred_mode = decode_cabac_mb_chroma_pre_mode( h ); |
| 1381 |
|
| 1382 |
pred_mode= ff_h264_check_intra_pred_mode( h, pred_mode ); |
| 1383 |
if( pred_mode < 0 ) return -1; |
| 1384 |
h->chroma_pred_mode= pred_mode; |
| 1385 |
} else {
|
| 1386 |
h->chroma_pred_mode= DC_128_PRED8x8; |
| 1387 |
} |
| 1388 |
} else if( partition_count == 4 ) { |
| 1389 |
int i, j, sub_partition_count[4], list, ref[2][4]; |
| 1390 |
|
| 1391 |
if( h->slice_type_nos == AV_PICTURE_TYPE_B ) {
|
| 1392 |
for( i = 0; i < 4; i++ ) { |
| 1393 |
h->sub_mb_type[i] = decode_cabac_b_mb_sub_type( h ); |
| 1394 |
sub_partition_count[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count; |
| 1395 |
h->sub_mb_type[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].type; |
| 1396 |
} |
| 1397 |
if( IS_DIRECT(h->sub_mb_type[0] | h->sub_mb_type[1] | |
| 1398 |
h->sub_mb_type[2] | h->sub_mb_type[3]) ) { |
| 1399 |
ff_h264_pred_direct_motion(h, &mb_type); |
| 1400 |
h->ref_cache[0][scan8[4]] = |
| 1401 |
h->ref_cache[1][scan8[4]] = |
| 1402 |
h->ref_cache[0][scan8[12]] = |
| 1403 |
h->ref_cache[1][scan8[12]] = PART_NOT_AVAILABLE; |
| 1404 |
for( i = 0; i < 4; i++ ) |
| 1405 |
fill_rectangle( &h->direct_cache[scan8[4*i]], 2, 2, 8, (h->sub_mb_type[i]>>1)&0xFF, 1 ); |
| 1406 |
} |
| 1407 |
} else {
|
| 1408 |
for( i = 0; i < 4; i++ ) { |
| 1409 |
h->sub_mb_type[i] = decode_cabac_p_mb_sub_type( h ); |
| 1410 |
sub_partition_count[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count; |
| 1411 |
h->sub_mb_type[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].type; |
| 1412 |
} |
| 1413 |
} |
| 1414 |
|
| 1415 |
for( list = 0; list < h->list_count; list++ ) { |
| 1416 |
for( i = 0; i < 4; i++ ) { |
| 1417 |
if(IS_DIRECT(h->sub_mb_type[i])) continue; |
| 1418 |
if(IS_DIR(h->sub_mb_type[i], 0, list)){ |
| 1419 |
if( h->ref_count[list] > 1 ){ |
| 1420 |
ref[list][i] = decode_cabac_mb_ref( h, list, 4*i );
|
| 1421 |
if(ref[list][i] >= (unsigned)h->ref_count[list]){ |
| 1422 |
av_log(s->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref[list][i], h->ref_count[list]);
|
| 1423 |
return -1; |
| 1424 |
} |
| 1425 |
}else
|
| 1426 |
ref[list][i] = 0;
|
| 1427 |
} else {
|
| 1428 |
ref[list][i] = -1;
|
| 1429 |
} |
| 1430 |
h->ref_cache[list][ scan8[4*i]+1 ]= |
| 1431 |
h->ref_cache[list][ scan8[4*i]+8 ]=h->ref_cache[list][ scan8[4*i]+9 ]= ref[list][i]; |
| 1432 |
} |
| 1433 |
} |
| 1434 |
|
| 1435 |
if(dct8x8_allowed)
|
| 1436 |
dct8x8_allowed = get_dct8x8_allowed(h); |
| 1437 |
|
| 1438 |
for(list=0; list<h->list_count; list++){ |
| 1439 |
for(i=0; i<4; i++){ |
| 1440 |
h->ref_cache[list][ scan8[4*i] ]=h->ref_cache[list][ scan8[4*i]+1 ]; |
| 1441 |
if(IS_DIRECT(h->sub_mb_type[i])){
|
| 1442 |
fill_rectangle(h->mvd_cache[list][scan8[4*i]], 2, 2, 8, 0, 2); |
| 1443 |
continue;
|
| 1444 |
} |
| 1445 |
|
| 1446 |
if(IS_DIR(h->sub_mb_type[i], 0, list) && !IS_DIRECT(h->sub_mb_type[i])){ |
| 1447 |
const int sub_mb_type= h->sub_mb_type[i]; |
| 1448 |
const int block_width= (sub_mb_type & (MB_TYPE_16x16|MB_TYPE_16x8)) ? 2 : 1; |
| 1449 |
for(j=0; j<sub_partition_count[i]; j++){ |
| 1450 |
int mpx, mpy;
|
| 1451 |
int mx, my;
|
| 1452 |
const int index= 4*i + block_width*j; |
| 1453 |
int16_t (* mv_cache)[2]= &h->mv_cache[list][ scan8[index] ];
|
| 1454 |
uint8_t (* mvd_cache)[2]= &h->mvd_cache[list][ scan8[index] ];
|
| 1455 |
pred_motion(h, index, block_width, list, h->ref_cache[list][ scan8[index] ], &mx, &my); |
| 1456 |
DECODE_CABAC_MB_MVD( h, list, index) |
| 1457 |
tprintf(s->avctx, "final mv:%d %d\n", mx, my);
|
| 1458 |
|
| 1459 |
if(IS_SUB_8X8(sub_mb_type)){
|
| 1460 |
mv_cache[ 1 ][0]= |
| 1461 |
mv_cache[ 8 ][0]= mv_cache[ 9 ][0]= mx; |
| 1462 |
mv_cache[ 1 ][1]= |
| 1463 |
mv_cache[ 8 ][1]= mv_cache[ 9 ][1]= my; |
| 1464 |
|
| 1465 |
mvd_cache[ 1 ][0]= |
| 1466 |
mvd_cache[ 8 ][0]= mvd_cache[ 9 ][0]= mpx; |
| 1467 |
mvd_cache[ 1 ][1]= |
| 1468 |
mvd_cache[ 8 ][1]= mvd_cache[ 9 ][1]= mpy; |
| 1469 |
}else if(IS_SUB_8X4(sub_mb_type)){ |
| 1470 |
mv_cache[ 1 ][0]= mx; |
| 1471 |
mv_cache[ 1 ][1]= my; |
| 1472 |
|
| 1473 |
mvd_cache[ 1 ][0]= mpx; |
| 1474 |
mvd_cache[ 1 ][1]= mpy; |
| 1475 |
}else if(IS_SUB_4X8(sub_mb_type)){ |
| 1476 |
mv_cache[ 8 ][0]= mx; |
| 1477 |
mv_cache[ 8 ][1]= my; |
| 1478 |
|
| 1479 |
mvd_cache[ 8 ][0]= mpx; |
| 1480 |
mvd_cache[ 8 ][1]= mpy; |
| 1481 |
} |
| 1482 |
mv_cache[ 0 ][0]= mx; |
| 1483 |
mv_cache[ 0 ][1]= my; |
| 1484 |
|
| 1485 |
mvd_cache[ 0 ][0]= mpx; |
| 1486 |
mvd_cache[ 0 ][1]= mpy; |
| 1487 |
} |
| 1488 |
}else{
|
| 1489 |
fill_rectangle(h->mv_cache [list][ scan8[4*i] ], 2, 2, 8, 0, 4); |
| 1490 |
fill_rectangle(h->mvd_cache[list][ scan8[4*i] ], 2, 2, 8, 0, 2); |
| 1491 |
} |
| 1492 |
} |
| 1493 |
} |
| 1494 |
} else if( IS_DIRECT(mb_type) ) { |
| 1495 |
ff_h264_pred_direct_motion(h, &mb_type); |
| 1496 |
fill_rectangle(h->mvd_cache[0][scan8[0]], 4, 4, 8, 0, 2); |
| 1497 |
fill_rectangle(h->mvd_cache[1][scan8[0]], 4, 4, 8, 0, 2); |
| 1498 |
dct8x8_allowed &= h->sps.direct_8x8_inference_flag; |
| 1499 |
} else {
|
| 1500 |
int list, i;
|
| 1501 |
if(IS_16X16(mb_type)){
|
| 1502 |
for(list=0; list<h->list_count; list++){ |
| 1503 |
if(IS_DIR(mb_type, 0, list)){ |
| 1504 |
int ref;
|
| 1505 |
if(h->ref_count[list] > 1){ |
| 1506 |
ref= decode_cabac_mb_ref(h, list, 0);
|
| 1507 |
if(ref >= (unsigned)h->ref_count[list]){ |
| 1508 |
av_log(s->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref, h->ref_count[list]);
|
| 1509 |
return -1; |
| 1510 |
} |
| 1511 |
}else
|
| 1512 |
ref=0;
|
| 1513 |
fill_rectangle(&h->ref_cache[list][ scan8[0] ], 4, 4, 8, ref, 1); |
| 1514 |
} |
| 1515 |
} |
| 1516 |
for(list=0; list<h->list_count; list++){ |
| 1517 |
if(IS_DIR(mb_type, 0, list)){ |
| 1518 |
int mx,my,mpx,mpy;
|
| 1519 |
pred_motion(h, 0, 4, list, h->ref_cache[list][ scan8[0] ], &mx, &my); |
| 1520 |
DECODE_CABAC_MB_MVD( h, list, 0)
|
| 1521 |
tprintf(s->avctx, "final mv:%d %d\n", mx, my);
|
| 1522 |
|
| 1523 |
fill_rectangle(h->mvd_cache[list][ scan8[0] ], 4, 4, 8, pack8to16(mpx,mpy), 2); |
| 1524 |
fill_rectangle(h->mv_cache[list][ scan8[0] ], 4, 4, 8, pack16to32(mx,my), 4); |
| 1525 |
} |
| 1526 |
} |
| 1527 |
} |
| 1528 |
else if(IS_16X8(mb_type)){ |
| 1529 |
for(list=0; list<h->list_count; list++){ |
| 1530 |
for(i=0; i<2; i++){ |
| 1531 |
if(IS_DIR(mb_type, i, list)){
|
| 1532 |
int ref;
|
| 1533 |
if(h->ref_count[list] > 1){ |
| 1534 |
ref= decode_cabac_mb_ref( h, list, 8*i );
|
| 1535 |
if(ref >= (unsigned)h->ref_count[list]){ |
| 1536 |
av_log(s->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref, h->ref_count[list]);
|
| 1537 |
return -1; |
| 1538 |
} |
| 1539 |
}else
|
| 1540 |
ref=0;
|
| 1541 |
fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, ref, 1); |
| 1542 |
}else
|
| 1543 |
fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, (LIST_NOT_USED&0xFF), 1); |
| 1544 |
} |
| 1545 |
} |
| 1546 |
for(list=0; list<h->list_count; list++){ |
| 1547 |
for(i=0; i<2; i++){ |
| 1548 |
if(IS_DIR(mb_type, i, list)){
|
| 1549 |
int mx,my,mpx,mpy;
|
| 1550 |
pred_16x8_motion(h, 8*i, list, h->ref_cache[list][scan8[0] + 16*i], &mx, &my); |
| 1551 |
DECODE_CABAC_MB_MVD( h, list, 8*i)
|
| 1552 |
tprintf(s->avctx, "final mv:%d %d\n", mx, my);
|
| 1553 |
|
| 1554 |
fill_rectangle(h->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack8to16(mpx,mpy), 2); |
| 1555 |
fill_rectangle(h->mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack16to32(mx,my), 4); |
| 1556 |
}else{
|
| 1557 |
fill_rectangle(h->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 2); |
| 1558 |
fill_rectangle(h-> mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 4); |
| 1559 |
} |
| 1560 |
} |
| 1561 |
} |
| 1562 |
}else{
|
| 1563 |
assert(IS_8X16(mb_type)); |
| 1564 |
for(list=0; list<h->list_count; list++){ |
| 1565 |
for(i=0; i<2; i++){ |
| 1566 |
if(IS_DIR(mb_type, i, list)){ //FIXME optimize |
| 1567 |
int ref;
|
| 1568 |
if(h->ref_count[list] > 1){ |
| 1569 |
ref= decode_cabac_mb_ref( h, list, 4*i );
|
| 1570 |
if(ref >= (unsigned)h->ref_count[list]){ |
| 1571 |
av_log(s->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref, h->ref_count[list]);
|
| 1572 |
return -1; |
| 1573 |
} |
| 1574 |
}else
|
| 1575 |
ref=0;
|
| 1576 |
fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, ref, 1); |
| 1577 |
}else
|
| 1578 |
fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, (LIST_NOT_USED&0xFF), 1); |
| 1579 |
} |
| 1580 |
} |
| 1581 |
for(list=0; list<h->list_count; list++){ |
| 1582 |
for(i=0; i<2; i++){ |
| 1583 |
if(IS_DIR(mb_type, i, list)){
|
| 1584 |
int mx,my,mpx,mpy;
|
| 1585 |
pred_8x16_motion(h, i*4, list, h->ref_cache[list][ scan8[0] + 2*i ], &mx, &my); |
| 1586 |
DECODE_CABAC_MB_MVD( h, list, 4*i)
|
| 1587 |
|
| 1588 |
tprintf(s->avctx, "final mv:%d %d\n", mx, my);
|
| 1589 |
fill_rectangle(h->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack8to16(mpx,mpy), 2); |
| 1590 |
fill_rectangle(h->mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack16to32(mx,my), 4); |
| 1591 |
}else{
|
| 1592 |
fill_rectangle(h->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 2); |
| 1593 |
fill_rectangle(h-> mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 4); |
| 1594 |
} |
| 1595 |
} |
| 1596 |
} |
| 1597 |
} |
| 1598 |
} |
| 1599 |
|
| 1600 |
if( IS_INTER( mb_type ) ) {
|
| 1601 |
h->chroma_pred_mode_table[mb_xy] = 0;
|
| 1602 |
write_back_motion( h, mb_type ); |
| 1603 |
} |
| 1604 |
|
| 1605 |
if( !IS_INTRA16x16( mb_type ) ) {
|
| 1606 |
cbp = decode_cabac_mb_cbp_luma( h ); |
| 1607 |
if(CHROMA)
|
| 1608 |
cbp |= decode_cabac_mb_cbp_chroma( h ) << 4;
|
| 1609 |
} |
| 1610 |
|
| 1611 |
h->cbp_table[mb_xy] = h->cbp = cbp; |
| 1612 |
|
| 1613 |
if( dct8x8_allowed && (cbp&15) && !IS_INTRA( mb_type ) ) { |
| 1614 |
mb_type |= MB_TYPE_8x8DCT * get_cabac_noinline( &h->cabac, &h->cabac_state[399 + h->neighbor_transform_size] );
|
| 1615 |
} |
| 1616 |
s->current_picture.mb_type[mb_xy]= mb_type; |
| 1617 |
|
| 1618 |
if( cbp || IS_INTRA16x16( mb_type ) ) {
|
| 1619 |
const uint8_t *scan, *scan8x8;
|
| 1620 |
const uint32_t *qmul;
|
| 1621 |
|
| 1622 |
if(IS_INTERLACED(mb_type)){
|
| 1623 |
scan8x8= s->qscale ? h->field_scan8x8 : h->field_scan8x8_q0; |
| 1624 |
scan= s->qscale ? h->field_scan : h->field_scan_q0; |
| 1625 |
}else{
|
| 1626 |
scan8x8= s->qscale ? h->zigzag_scan8x8 : h->zigzag_scan8x8_q0; |
| 1627 |
scan= s->qscale ? h->zigzag_scan : h->zigzag_scan_q0; |
| 1628 |
} |
| 1629 |
|
| 1630 |
// decode_cabac_mb_dqp
|
| 1631 |
if(get_cabac_noinline( &h->cabac, &h->cabac_state[60 + (h->last_qscale_diff != 0)])){ |
| 1632 |
int val = 1; |
| 1633 |
int ctx= 2; |
| 1634 |
const int max_qp = 51 + 6*(h->sps.bit_depth_luma-8); |
| 1635 |
|
| 1636 |
while( get_cabac_noinline( &h->cabac, &h->cabac_state[60 + ctx] ) ) { |
| 1637 |
ctx= 3;
|
| 1638 |
val++; |
| 1639 |
if(val > 2*max_qp){ //prevent infinite loop |
| 1640 |
av_log(h->s.avctx, AV_LOG_ERROR, "cabac decode of qscale diff failed at %d %d\n", s->mb_x, s->mb_y);
|
| 1641 |
return -1; |
| 1642 |
} |
| 1643 |
} |
| 1644 |
|
| 1645 |
if( val&0x01 ) |
| 1646 |
val= (val + 1)>>1 ; |
| 1647 |
else
|
| 1648 |
val= -((val + 1)>>1); |
| 1649 |
h->last_qscale_diff = val; |
| 1650 |
s->qscale += val; |
| 1651 |
if(((unsigned)s->qscale) > max_qp){ |
| 1652 |
if(s->qscale<0) s->qscale+= max_qp+1; |
| 1653 |
else s->qscale-= max_qp+1; |
| 1654 |
} |
| 1655 |
h->chroma_qp[0] = get_chroma_qp(h, 0, s->qscale); |
| 1656 |
h->chroma_qp[1] = get_chroma_qp(h, 1, s->qscale); |
| 1657 |
}else
|
| 1658 |
h->last_qscale_diff=0;
|
| 1659 |
|
| 1660 |
if( IS_INTRA16x16( mb_type ) ) {
|
| 1661 |
int i;
|
| 1662 |
//av_log( s->avctx, AV_LOG_ERROR, "INTRA16x16 DC\n" );
|
| 1663 |
AV_ZERO128(h->mb_luma_dc+0);
|
| 1664 |
AV_ZERO128(h->mb_luma_dc+8);
|
| 1665 |
AV_ZERO128(h->mb_luma_dc+16);
|
| 1666 |
AV_ZERO128(h->mb_luma_dc+24);
|
| 1667 |
decode_cabac_residual_dc( h, h->mb_luma_dc, 0, LUMA_DC_BLOCK_INDEX, scan, 16); |
| 1668 |
|
| 1669 |
if( cbp&15 ) { |
| 1670 |
qmul = h->dequant4_coeff[0][s->qscale];
|
| 1671 |
for( i = 0; i < 16; i++ ) { |
| 1672 |
//av_log( s->avctx, AV_LOG_ERROR, "INTRA16x16 AC:%d\n", i );
|
| 1673 |
decode_cabac_residual_nondc(h, h->mb + (16*i<<h->pixel_shift), 1, i, scan + 1, qmul, 15); |
| 1674 |
} |
| 1675 |
} else {
|
| 1676 |
fill_rectangle(&h->non_zero_count_cache[scan8[0]], 4, 4, 8, 0, 1); |
| 1677 |
} |
| 1678 |
} else {
|
| 1679 |
int i8x8, i4x4;
|
| 1680 |
for( i8x8 = 0; i8x8 < 4; i8x8++ ) { |
| 1681 |
if( cbp & (1<<i8x8) ) { |
| 1682 |
if( IS_8x8DCT(mb_type) ) {
|
| 1683 |
decode_cabac_residual_nondc(h, h->mb + (64*i8x8<<h->pixel_shift), 5, 4*i8x8, |
| 1684 |
scan8x8, h->dequant8_coeff[IS_INTRA( mb_type ) ? 0:1][s->qscale], 64); |
| 1685 |
} else {
|
| 1686 |
qmul = h->dequant4_coeff[IS_INTRA( mb_type ) ? 0:3][s->qscale]; |
| 1687 |
for( i4x4 = 0; i4x4 < 4; i4x4++ ) { |
| 1688 |
const int index = 4*i8x8 + i4x4; |
| 1689 |
//av_log( s->avctx, AV_LOG_ERROR, "Luma4x4: %d\n", index );
|
| 1690 |
//START_TIMER
|
| 1691 |
decode_cabac_residual_nondc(h, h->mb + (16*index<<h->pixel_shift), 2, index, scan, qmul, 16); |
| 1692 |
//STOP_TIMER("decode_residual")
|
| 1693 |
} |
| 1694 |
} |
| 1695 |
} else {
|
| 1696 |
uint8_t * const nnz= &h->non_zero_count_cache[ scan8[4*i8x8] ]; |
| 1697 |
nnz[0] = nnz[1] = nnz[8] = nnz[9] = 0; |
| 1698 |
} |
| 1699 |
} |
| 1700 |
} |
| 1701 |
|
| 1702 |
if( cbp&0x30 ){ |
| 1703 |
int c;
|
| 1704 |
for( c = 0; c < 2; c++ ) { |
| 1705 |
//av_log( s->avctx, AV_LOG_ERROR, "INTRA C%d-DC\n",c );
|
| 1706 |
decode_cabac_residual_dc(h, h->mb + ((256 + 16*4*c)<<h->pixel_shift), 3, CHROMA_DC_BLOCK_INDEX+c, chroma_dc_scan, 4); |
| 1707 |
} |
| 1708 |
} |
| 1709 |
|
| 1710 |
if( cbp&0x20 ) { |
| 1711 |
int c, i;
|
| 1712 |
for( c = 0; c < 2; c++ ) { |
| 1713 |
qmul = h->dequant4_coeff[c+1+(IS_INTRA( mb_type ) ? 0:3)][h->chroma_qp[c]]; |
| 1714 |
for( i = 0; i < 4; i++ ) { |
| 1715 |
const int index = 16 + 4 * c + i; |
| 1716 |
//av_log( s->avctx, AV_LOG_ERROR, "INTRA C%d-AC %d\n",c, index - 16 );
|
| 1717 |
decode_cabac_residual_nondc(h, h->mb + (16*index<<h->pixel_shift), 4, index, scan + 1, qmul, 15); |
| 1718 |
} |
| 1719 |
} |
| 1720 |
} else {
|
| 1721 |
uint8_t * const nnz= &h->non_zero_count_cache[0]; |
| 1722 |
nnz[ scan8[16]+0 ] = nnz[ scan8[16]+1 ] =nnz[ scan8[16]+8 ] =nnz[ scan8[16]+9 ] = |
| 1723 |
nnz[ scan8[20]+0 ] = nnz[ scan8[20]+1 ] =nnz[ scan8[20]+8 ] =nnz[ scan8[20]+9 ] = 0; |
| 1724 |
} |
| 1725 |
} else {
|
| 1726 |
uint8_t * const nnz= &h->non_zero_count_cache[0]; |
| 1727 |
fill_rectangle(&nnz[scan8[0]], 4, 4, 8, 0, 1); |
| 1728 |
nnz[ scan8[16]+0 ] = nnz[ scan8[16]+1 ] =nnz[ scan8[16]+8 ] =nnz[ scan8[16]+9 ] = |
| 1729 |
nnz[ scan8[20]+0 ] = nnz[ scan8[20]+1 ] =nnz[ scan8[20]+8 ] =nnz[ scan8[20]+9 ] = 0; |
| 1730 |
h->last_qscale_diff = 0;
|
| 1731 |
} |
| 1732 |
|
| 1733 |
s->current_picture.qscale_table[mb_xy]= s->qscale; |
| 1734 |
write_back_non_zero_count(h); |
| 1735 |
|
| 1736 |
if(MB_MBAFF){
|
| 1737 |
h->ref_count[0] >>= 1; |
| 1738 |
h->ref_count[1] >>= 1; |
| 1739 |
} |
| 1740 |
|
| 1741 |
return 0; |
| 1742 |
} |