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/*
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* Copyright (c) 2011 Justin Ruggles
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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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* mov 'chan' tag reading/writing.
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* @author Justin Ruggles
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*/
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#include <stdint.h>
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#include "libavutil/channel_layout.h"
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#include "libavcodec/codec_id.h"
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#include "mov_chan.h"
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/**
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* Channel Layout Tag
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* This tells which channels are present in the audio stream and the order in
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* which they appear.
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*
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* @note We're using the channel layout tag to indicate channel order
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* when the value is greater than 0x10000. The Apple documentation has
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* some contradictions as to how this is actually supposed to be handled.
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*
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* Core Audio File Format Spec:
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* "The high 16 bits indicates a specific ordering of the channels."
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* Core Audio Data Types Reference:
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* "These identifiers specify the channels included in a layout but
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* do not specify a particular ordering of those channels."
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*/
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enum MovChannelLayoutTag {
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#define MOV_CH_LAYOUT_UNKNOWN 0xFFFF0000
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MOV_CH_LAYOUT_USE_DESCRIPTIONS = ( 0 << 16) | 0,
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MOV_CH_LAYOUT_USE_BITMAP = ( 1 << 16) | 0,
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MOV_CH_LAYOUT_DISCRETEINORDER = (147 << 16) | 0,
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MOV_CH_LAYOUT_MONO = (100 << 16) | 1,
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MOV_CH_LAYOUT_STEREO = (101 << 16) | 2,
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MOV_CH_LAYOUT_STEREOHEADPHONES = (102 << 16) | 2,
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MOV_CH_LAYOUT_MATRIXSTEREO = (103 << 16) | 2,
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MOV_CH_LAYOUT_MIDSIDE = (104 << 16) | 2,
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MOV_CH_LAYOUT_XY = (105 << 16) | 2,
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MOV_CH_LAYOUT_BINAURAL = (106 << 16) | 2,
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MOV_CH_LAYOUT_AMBISONIC_B_FORMAT = (107 << 16) | 4,
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MOV_CH_LAYOUT_QUADRAPHONIC = (108 << 16) | 4,
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MOV_CH_LAYOUT_PENTAGONAL = (109 << 16) | 5,
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MOV_CH_LAYOUT_HEXAGONAL = (110 << 16) | 6,
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MOV_CH_LAYOUT_OCTAGONAL = (111 << 16) | 8,
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MOV_CH_LAYOUT_CUBE = (112 << 16) | 8,
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MOV_CH_LAYOUT_MPEG_3_0_A = (113 << 16) | 3,
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MOV_CH_LAYOUT_MPEG_3_0_B = (114 << 16) | 3,
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MOV_CH_LAYOUT_MPEG_4_0_A = (115 << 16) | 4,
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MOV_CH_LAYOUT_MPEG_4_0_B = (116 << 16) | 4,
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MOV_CH_LAYOUT_MPEG_5_0_A = (117 << 16) | 5,
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MOV_CH_LAYOUT_MPEG_5_0_B = (118 << 16) | 5,
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MOV_CH_LAYOUT_MPEG_5_0_C = (119 << 16) | 5,
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MOV_CH_LAYOUT_MPEG_5_0_D = (120 << 16) | 5,
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MOV_CH_LAYOUT_MPEG_5_1_A = (121 << 16) | 6,
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MOV_CH_LAYOUT_MPEG_5_1_B = (122 << 16) | 6,
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MOV_CH_LAYOUT_MPEG_5_1_C = (123 << 16) | 6,
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MOV_CH_LAYOUT_MPEG_5_1_D = (124 << 16) | 6,
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MOV_CH_LAYOUT_MPEG_6_1_A = (125 << 16) | 7,
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MOV_CH_LAYOUT_MPEG_7_1_A = (126 << 16) | 8,
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MOV_CH_LAYOUT_MPEG_7_1_B = (127 << 16) | 8,
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MOV_CH_LAYOUT_MPEG_7_1_C = (128 << 16) | 8,
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MOV_CH_LAYOUT_EMAGIC_DEFAULT_7_1 = (129 << 16) | 8,
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MOV_CH_LAYOUT_SMPTE_DTV = (130 << 16) | 8,
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MOV_CH_LAYOUT_ITU_2_1 = (131 << 16) | 3,
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MOV_CH_LAYOUT_ITU_2_2 = (132 << 16) | 4,
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MOV_CH_LAYOUT_DVD_4 = (133 << 16) | 3,
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MOV_CH_LAYOUT_DVD_5 = (134 << 16) | 4,
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MOV_CH_LAYOUT_DVD_6 = (135 << 16) | 5,
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MOV_CH_LAYOUT_DVD_10 = (136 << 16) | 4,
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MOV_CH_LAYOUT_DVD_11 = (137 << 16) | 5,
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MOV_CH_LAYOUT_DVD_18 = (138 << 16) | 5,
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MOV_CH_LAYOUT_AUDIOUNIT_6_0 = (139 << 16) | 6,
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MOV_CH_LAYOUT_AUDIOUNIT_7_0 = (140 << 16) | 7,
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MOV_CH_LAYOUT_AUDIOUNIT_7_0_FRONT = (148 << 16) | 7,
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MOV_CH_LAYOUT_AAC_6_0 = (141 << 16) | 6,
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MOV_CH_LAYOUT_AAC_6_1 = (142 << 16) | 7,
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MOV_CH_LAYOUT_AAC_7_0 = (143 << 16) | 7,
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MOV_CH_LAYOUT_AAC_OCTAGONAL = (144 << 16) | 8,
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MOV_CH_LAYOUT_TMH_10_2_STD = (145 << 16) | 16,
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MOV_CH_LAYOUT_TMH_10_2_FULL = (146 << 16) | 21,
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MOV_CH_LAYOUT_AC3_1_0_1 = (149 << 16) | 2,
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MOV_CH_LAYOUT_AC3_3_0 = (150 << 16) | 3,
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MOV_CH_LAYOUT_AC3_3_1 = (151 << 16) | 4,
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MOV_CH_LAYOUT_AC3_3_0_1 = (152 << 16) | 4,
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MOV_CH_LAYOUT_AC3_2_1_1 = (153 << 16) | 4,
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MOV_CH_LAYOUT_AC3_3_1_1 = (154 << 16) | 5,
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MOV_CH_LAYOUT_EAC3_6_0_A = (155 << 16) | 6,
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MOV_CH_LAYOUT_EAC3_7_0_A = (156 << 16) | 7,
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MOV_CH_LAYOUT_EAC3_6_1_A = (157 << 16) | 7,
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MOV_CH_LAYOUT_EAC3_6_1_B = (158 << 16) | 7,
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MOV_CH_LAYOUT_EAC3_6_1_C = (159 << 16) | 7,
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MOV_CH_LAYOUT_EAC3_7_1_A = (160 << 16) | 8,
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MOV_CH_LAYOUT_EAC3_7_1_B = (161 << 16) | 8,
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MOV_CH_LAYOUT_EAC3_7_1_C = (162 << 16) | 8,
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MOV_CH_LAYOUT_EAC3_7_1_D = (163 << 16) | 8,
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MOV_CH_LAYOUT_EAC3_7_1_E = (164 << 16) | 8,
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MOV_CH_LAYOUT_EAC3_7_1_F = (165 << 16) | 8,
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MOV_CH_LAYOUT_EAC3_7_1_G = (166 << 16) | 8,
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MOV_CH_LAYOUT_EAC3_7_1_H = (167 << 16) | 8,
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MOV_CH_LAYOUT_DTS_3_1 = (168 << 16) | 4,
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MOV_CH_LAYOUT_DTS_4_1 = (169 << 16) | 5,
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MOV_CH_LAYOUT_DTS_6_0_A = (170 << 16) | 6,
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MOV_CH_LAYOUT_DTS_6_0_B = (171 << 16) | 6,
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MOV_CH_LAYOUT_DTS_6_0_C = (172 << 16) | 6,
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MOV_CH_LAYOUT_DTS_6_1_A = (173 << 16) | 7,
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MOV_CH_LAYOUT_DTS_6_1_B = (174 << 16) | 7,
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MOV_CH_LAYOUT_DTS_6_1_C = (175 << 16) | 7,
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MOV_CH_LAYOUT_DTS_6_1_D = (182 << 16) | 7,
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MOV_CH_LAYOUT_DTS_7_0 = (176 << 16) | 7,
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MOV_CH_LAYOUT_DTS_7_1 = (177 << 16) | 8,
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MOV_CH_LAYOUT_DTS_8_0_A = (178 << 16) | 8,
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MOV_CH_LAYOUT_DTS_8_0_B = (179 << 16) | 8,
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MOV_CH_LAYOUT_DTS_8_1_A = (180 << 16) | 9,
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MOV_CH_LAYOUT_DTS_8_1_B = (181 << 16) | 9,
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};
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struct MovChannelLayoutMap {
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uint32_t tag;
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uint64_t layout;
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};
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static const struct MovChannelLayoutMap mov_ch_layout_map_misc[] = {
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{ MOV_CH_LAYOUT_USE_DESCRIPTIONS, 0 },
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{ MOV_CH_LAYOUT_USE_BITMAP, 0 },
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{ MOV_CH_LAYOUT_DISCRETEINORDER, 0 },
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{ MOV_CH_LAYOUT_UNKNOWN, 0 },
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{ MOV_CH_LAYOUT_TMH_10_2_STD, 0 }, // L, R, C, Vhc, Lsd, Rsd,
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// Ls, Rs, Vhl, Vhr, Lw, Rw,
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// Csd, Cs, LFE1, LFE2
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{ MOV_CH_LAYOUT_TMH_10_2_FULL, 0 }, // L, R, C, Vhc, Lsd, Rsd,
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// Ls, Rs, Vhl, Vhr, Lw, Rw,
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// Csd, Cs, LFE1, LFE2, Lc, Rc,
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// HI, VI, Haptic
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{ 0, 0 },
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};
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static const struct MovChannelLayoutMap mov_ch_layout_map_1ch[] = {
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{ MOV_CH_LAYOUT_MONO, AV_CH_LAYOUT_MONO }, // C
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{ 0, 0 },
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};
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static const struct MovChannelLayoutMap mov_ch_layout_map_2ch[] = {
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{ MOV_CH_LAYOUT_STEREO, AV_CH_LAYOUT_STEREO }, // L, R
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{ MOV_CH_LAYOUT_STEREOHEADPHONES, AV_CH_LAYOUT_STEREO }, // L, R
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{ MOV_CH_LAYOUT_BINAURAL, AV_CH_LAYOUT_STEREO }, // L, R
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{ MOV_CH_LAYOUT_MIDSIDE, AV_CH_LAYOUT_STEREO }, // C, sides
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{ MOV_CH_LAYOUT_XY, AV_CH_LAYOUT_STEREO }, // X (left), Y (right)
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{ MOV_CH_LAYOUT_MATRIXSTEREO, AV_CH_LAYOUT_STEREO_DOWNMIX }, // Lt, Rt
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{ MOV_CH_LAYOUT_AC3_1_0_1, AV_CH_LAYOUT_MONO | // C, LFE
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AV_CH_LOW_FREQUENCY },
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{ 0, 0 },
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};
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static const struct MovChannelLayoutMap mov_ch_layout_map_3ch[] = {
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{ MOV_CH_LAYOUT_MPEG_3_0_A, AV_CH_LAYOUT_SURROUND }, // L, R, C
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{ MOV_CH_LAYOUT_MPEG_3_0_B, AV_CH_LAYOUT_SURROUND }, // C, L, R
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{ MOV_CH_LAYOUT_AC3_3_0, AV_CH_LAYOUT_SURROUND }, // L, C, R
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{ MOV_CH_LAYOUT_ITU_2_1, AV_CH_LAYOUT_2_1 }, // L, R, Cs
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{ MOV_CH_LAYOUT_DVD_4, AV_CH_LAYOUT_2POINT1 }, // L, R, LFE
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{ 0, 0 },
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};
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static const struct MovChannelLayoutMap mov_ch_layout_map_4ch[] = {
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{ MOV_CH_LAYOUT_AMBISONIC_B_FORMAT, 0 }, // W, X, Y, Z
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{ MOV_CH_LAYOUT_QUADRAPHONIC, AV_CH_LAYOUT_QUAD }, // L, R, Rls, Rrs
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{ MOV_CH_LAYOUT_MPEG_4_0_A, AV_CH_LAYOUT_4POINT0 }, // L, R, C, Cs
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{ MOV_CH_LAYOUT_MPEG_4_0_B, AV_CH_LAYOUT_4POINT0 }, // C, L, R, Cs
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{ MOV_CH_LAYOUT_AC3_3_1, AV_CH_LAYOUT_4POINT0 }, // L, C, R, Cs
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{ MOV_CH_LAYOUT_ITU_2_2, AV_CH_LAYOUT_2_2 }, // L, R, Ls, Rs
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{ MOV_CH_LAYOUT_DVD_5, AV_CH_LAYOUT_2_1 | // L, R, LFE, Cs
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AV_CH_LOW_FREQUENCY },
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{ MOV_CH_LAYOUT_AC3_2_1_1, AV_CH_LAYOUT_2_1 | // L, R, Cs, LFE
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AV_CH_LOW_FREQUENCY },
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{ MOV_CH_LAYOUT_DVD_10, AV_CH_LAYOUT_3POINT1 }, // L, R, C, LFE
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{ MOV_CH_LAYOUT_AC3_3_0_1, AV_CH_LAYOUT_3POINT1 }, // L, C, R, LFE
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{ MOV_CH_LAYOUT_DTS_3_1, AV_CH_LAYOUT_3POINT1 }, // C, L, R, LFE
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{ 0, 0 },
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};
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static const struct MovChannelLayoutMap mov_ch_layout_map_5ch[] = {
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{ MOV_CH_LAYOUT_PENTAGONAL, AV_CH_LAYOUT_5POINT0_BACK }, // L, R, Rls, Rrs, C
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{ MOV_CH_LAYOUT_MPEG_5_0_A, AV_CH_LAYOUT_5POINT0 }, // L, R, C, Ls, Rs
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{ MOV_CH_LAYOUT_MPEG_5_0_B, AV_CH_LAYOUT_5POINT0 }, // L, R, Ls, Rs, C
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{ MOV_CH_LAYOUT_MPEG_5_0_C, AV_CH_LAYOUT_5POINT0 }, // L, C, R, Ls, Rs
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{ MOV_CH_LAYOUT_MPEG_5_0_D, AV_CH_LAYOUT_5POINT0 }, // C, L, R, Ls, Rs
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{ MOV_CH_LAYOUT_DVD_6, AV_CH_LAYOUT_2_2 | // L, R, LFE, Ls, Rs
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AV_CH_LOW_FREQUENCY },
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{ MOV_CH_LAYOUT_DVD_18, AV_CH_LAYOUT_2_2 | // L, R, Ls, Rs, LFE
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AV_CH_LOW_FREQUENCY },
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{ MOV_CH_LAYOUT_DVD_11, AV_CH_LAYOUT_4POINT1 }, // L, R, C, LFE, Cs
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{ MOV_CH_LAYOUT_AC3_3_1_1, AV_CH_LAYOUT_4POINT1 }, // L, C, R, Cs, LFE
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{ MOV_CH_LAYOUT_DTS_4_1, AV_CH_LAYOUT_4POINT1 }, // C, L, R, Cs, LFE
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{ 0, 0 },
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};
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static const struct MovChannelLayoutMap mov_ch_layout_map_6ch[] = {
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{ MOV_CH_LAYOUT_HEXAGONAL, AV_CH_LAYOUT_HEXAGONAL }, // L, R, Rls, Rrs, C, Cs
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{ MOV_CH_LAYOUT_DTS_6_0_C, AV_CH_LAYOUT_HEXAGONAL }, // C, Cs, L, R, Rls, Rrs
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{ MOV_CH_LAYOUT_MPEG_5_1_A, AV_CH_LAYOUT_5POINT1 }, // L, R, C, LFE, Ls, Rs
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{ MOV_CH_LAYOUT_MPEG_5_1_B, AV_CH_LAYOUT_5POINT1 }, // L, R, Ls, Rs, C, LFE
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{ MOV_CH_LAYOUT_MPEG_5_1_C, AV_CH_LAYOUT_5POINT1 }, // L, C, R, Ls, Rs, LFE
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{ MOV_CH_LAYOUT_MPEG_5_1_D, AV_CH_LAYOUT_5POINT1 }, // C, L, R, Ls, Rs, LFE
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{ MOV_CH_LAYOUT_AUDIOUNIT_6_0, AV_CH_LAYOUT_6POINT0 }, // L, R, Ls, Rs, C, Cs
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{ MOV_CH_LAYOUT_AAC_6_0, AV_CH_LAYOUT_6POINT0 }, // C, L, R, Ls, Rs, Cs
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{ MOV_CH_LAYOUT_EAC3_6_0_A, AV_CH_LAYOUT_6POINT0 }, // L, C, R, Ls, Rs, Cs
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{ MOV_CH_LAYOUT_DTS_6_0_A, AV_CH_LAYOUT_6POINT0_FRONT }, // Lc, Rc, L, R, Ls, Rs
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{ MOV_CH_LAYOUT_DTS_6_0_B, AV_CH_LAYOUT_5POINT0_BACK | // C, L, R, Rls, Rrs, Ts
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AV_CH_TOP_CENTER },
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{ 0, 0 },
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};
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static const struct MovChannelLayoutMap mov_ch_layout_map_7ch[] = {
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{ MOV_CH_LAYOUT_MPEG_6_1_A, AV_CH_LAYOUT_6POINT1 }, // L, R, C, LFE, Ls, Rs, Cs
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{ MOV_CH_LAYOUT_AAC_6_1, AV_CH_LAYOUT_6POINT1 }, // C, L, R, Ls, Rs, Cs, LFE
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{ MOV_CH_LAYOUT_EAC3_6_1_A, AV_CH_LAYOUT_6POINT1 }, // L, C, R, Ls, Rs, LFE, Cs
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{ MOV_CH_LAYOUT_DTS_6_1_D, AV_CH_LAYOUT_6POINT1 }, // C, L, R, Ls, Rs, LFE, Cs
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{ MOV_CH_LAYOUT_AUDIOUNIT_7_0, AV_CH_LAYOUT_7POINT0 }, // L, R, Ls, Rs, C, Rls, Rrs
|
|
|
|
{ MOV_CH_LAYOUT_AAC_7_0, AV_CH_LAYOUT_7POINT0 }, // C, L, R, Ls, Rs, Rls, Rrs
|
|
|
|
{ MOV_CH_LAYOUT_EAC3_7_0_A, AV_CH_LAYOUT_7POINT0 }, // L, C, R, Ls, Rs, Rls, Rrs
|
|
|
|
|
|
|
|
{ MOV_CH_LAYOUT_AUDIOUNIT_7_0_FRONT, AV_CH_LAYOUT_7POINT0_FRONT }, // L, R, Ls, Rs, C, Lc, Rc
|
|
|
|
{ MOV_CH_LAYOUT_DTS_7_0, AV_CH_LAYOUT_7POINT0_FRONT }, // Lc, C, Rc, L, R, Ls, Rs
|
|
|
|
|
|
|
|
{ MOV_CH_LAYOUT_EAC3_6_1_B, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Ts
|
|
|
|
AV_CH_TOP_CENTER },
|
|
|
|
|
|
|
|
{ MOV_CH_LAYOUT_EAC3_6_1_C, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Vhc
|
|
|
|
AV_CH_TOP_FRONT_CENTER },
|
|
|
|
|
|
|
|
{ MOV_CH_LAYOUT_DTS_6_1_A, AV_CH_LAYOUT_6POINT1_FRONT }, // Lc, Rc, L, R, Ls, Rs, LFE
|
|
|
|
|
|
|
|
{ MOV_CH_LAYOUT_DTS_6_1_B, AV_CH_LAYOUT_5POINT1_BACK | // C, L, R, Rls, Rrs, Ts, LFE
|
|
|
|
AV_CH_TOP_CENTER },
|
|
|
|
|
|
|
|
{ MOV_CH_LAYOUT_DTS_6_1_C, AV_CH_LAYOUT_6POINT1_BACK }, // C, Cs, L, R, Rls, Rrs, LFE
|
|
|
|
{ 0, 0 },
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct MovChannelLayoutMap mov_ch_layout_map_8ch[] = {
|
|
|
|
{ MOV_CH_LAYOUT_OCTAGONAL, AV_CH_LAYOUT_OCTAGONAL }, // L, R, Rls, Rrs, C, Cs, Ls, Rs
|
|
|
|
{ MOV_CH_LAYOUT_AAC_OCTAGONAL, AV_CH_LAYOUT_OCTAGONAL }, // C, L, R, Ls, Rs, Rls, Rrs, Cs
|
|
|
|
|
|
|
|
{ MOV_CH_LAYOUT_CUBE, AV_CH_LAYOUT_QUAD | // L, R, Rls, Rrs, Vhl, Vhr, Rlt, Rrt
|
|
|
|
AV_CH_TOP_FRONT_LEFT |
|
|
|
|
AV_CH_TOP_FRONT_RIGHT |
|
|
|
|
AV_CH_TOP_BACK_LEFT |
|
|
|
|
AV_CH_TOP_BACK_RIGHT },
|
|
|
|
|
|
|
|
{ MOV_CH_LAYOUT_MPEG_7_1_A, AV_CH_LAYOUT_7POINT1_WIDE }, // L, R, C, LFE, Ls, Rs, Lc, Rc
|
|
|
|
{ MOV_CH_LAYOUT_MPEG_7_1_B, AV_CH_LAYOUT_7POINT1_WIDE }, // C, Lc, Rc, L, R, Ls, Rs, LFE
|
|
|
|
{ MOV_CH_LAYOUT_EMAGIC_DEFAULT_7_1, AV_CH_LAYOUT_7POINT1_WIDE }, // L, R, Ls, Rs, C, LFE, Lc, Rc
|
|
|
|
{ MOV_CH_LAYOUT_EAC3_7_1_B, AV_CH_LAYOUT_7POINT1_WIDE }, // L, C, R, Ls, Rs, LFE, Lc, Rc
|
|
|
|
{ MOV_CH_LAYOUT_DTS_7_1, AV_CH_LAYOUT_7POINT1_WIDE }, // Lc, C, Rc, L, R, Ls, Rs, LFE
|
|
|
|
|
|
|
|
{ MOV_CH_LAYOUT_MPEG_7_1_C, AV_CH_LAYOUT_7POINT1 }, // L, R, C, LFE, Ls, Rs, Rls, Rrs
|
|
|
|
{ MOV_CH_LAYOUT_EAC3_7_1_A, AV_CH_LAYOUT_7POINT1 }, // L, C, R, Ls, Rs, LFE, Rls, Rrs
|
|
|
|
|
|
|
|
{ MOV_CH_LAYOUT_SMPTE_DTV, AV_CH_LAYOUT_5POINT1 | // L, R, C, LFE, Ls, Rs, Lt, Rt
|
|
|
|
AV_CH_LAYOUT_STEREO_DOWNMIX },
|
|
|
|
|
|
|
|
{ MOV_CH_LAYOUT_EAC3_7_1_C, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Lsd, Rsd
|
|
|
|
AV_CH_SURROUND_DIRECT_LEFT |
|
|
|
|
AV_CH_SURROUND_DIRECT_RIGHT },
|
|
|
|
|
|
|
|
{ MOV_CH_LAYOUT_EAC3_7_1_D, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Lw, Rw
|
|
|
|
AV_CH_WIDE_LEFT |
|
|
|
|
AV_CH_WIDE_RIGHT },
|
|
|
|
|
|
|
|
{ MOV_CH_LAYOUT_EAC3_7_1_E, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Vhl, Vhr
|
|
|
|
AV_CH_TOP_FRONT_LEFT |
|
|
|
|
AV_CH_TOP_FRONT_RIGHT },
|
|
|
|
|
|
|
|
{ MOV_CH_LAYOUT_EAC3_7_1_F, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Cs, Ts
|
|
|
|
AV_CH_BACK_CENTER |
|
|
|
|
AV_CH_TOP_CENTER },
|
|
|
|
|
|
|
|
{ MOV_CH_LAYOUT_EAC3_7_1_G, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Cs, Vhc
|
|
|
|
AV_CH_BACK_CENTER |
|
|
|
|
AV_CH_TOP_FRONT_CENTER },
|
|
|
|
|
|
|
|
{ MOV_CH_LAYOUT_EAC3_7_1_H, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Ts, Vhc
|
|
|
|
AV_CH_TOP_CENTER |
|
|
|
|
AV_CH_TOP_FRONT_CENTER },
|
|
|
|
|
|
|
|
{ MOV_CH_LAYOUT_DTS_8_0_A, AV_CH_LAYOUT_2_2 | // Lc, Rc, L, R, Ls, Rs, Rls, Rrs
|
|
|
|
AV_CH_BACK_LEFT |
|
|
|
|
AV_CH_BACK_RIGHT |
|
|
|
|
AV_CH_FRONT_LEFT_OF_CENTER |
|
|
|
|
AV_CH_FRONT_RIGHT_OF_CENTER },
|
|
|
|
|
|
|
|
{ MOV_CH_LAYOUT_DTS_8_0_B, AV_CH_LAYOUT_5POINT0 | // Lc, C, Rc, L, R, Ls, Cs, Rs
|
|
|
|
AV_CH_FRONT_LEFT_OF_CENTER |
|
|
|
|
AV_CH_FRONT_RIGHT_OF_CENTER |
|
|
|
|
AV_CH_BACK_CENTER },
|
|
|
|
{ 0, 0 },
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct MovChannelLayoutMap mov_ch_layout_map_9ch[] = {
|
|
|
|
{ MOV_CH_LAYOUT_DTS_8_1_A, AV_CH_LAYOUT_2_2 | // Lc, Rc, L, R, Ls, Rs, Rls, Rrs, LFE
|
|
|
|
AV_CH_BACK_LEFT |
|
|
|
|
AV_CH_BACK_RIGHT |
|
|
|
|
AV_CH_FRONT_LEFT_OF_CENTER |
|
|
|
|
AV_CH_FRONT_RIGHT_OF_CENTER |
|
|
|
|
AV_CH_LOW_FREQUENCY },
|
|
|
|
|
|
|
|
{ MOV_CH_LAYOUT_DTS_8_1_B, AV_CH_LAYOUT_7POINT1_WIDE | // Lc, C, Rc, L, R, Ls, Cs, Rs, LFE
|
|
|
|
AV_CH_BACK_CENTER },
|
|
|
|
{ 0, 0 },
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct MovChannelLayoutMap * const mov_ch_layout_map[] = {
|
|
|
|
mov_ch_layout_map_misc,
|
|
|
|
mov_ch_layout_map_1ch,
|
|
|
|
mov_ch_layout_map_2ch,
|
|
|
|
mov_ch_layout_map_3ch,
|
|
|
|
mov_ch_layout_map_4ch,
|
|
|
|
mov_ch_layout_map_5ch,
|
|
|
|
mov_ch_layout_map_6ch,
|
|
|
|
mov_ch_layout_map_7ch,
|
|
|
|
mov_ch_layout_map_8ch,
|
|
|
|
mov_ch_layout_map_9ch,
|
|
|
|
};
|
|
|
|
|
|
|
|
static const enum MovChannelLayoutTag mov_ch_layouts_aac[] = {
|
|
|
|
MOV_CH_LAYOUT_MONO,
|
|
|
|
MOV_CH_LAYOUT_STEREO,
|
|
|
|
MOV_CH_LAYOUT_AC3_1_0_1,
|
|
|
|
MOV_CH_LAYOUT_MPEG_3_0_B,
|
|
|
|
MOV_CH_LAYOUT_ITU_2_1,
|
|
|
|
MOV_CH_LAYOUT_DVD_4,
|
|
|
|
MOV_CH_LAYOUT_QUADRAPHONIC,
|
|
|
|
MOV_CH_LAYOUT_MPEG_4_0_B,
|
|
|
|
MOV_CH_LAYOUT_ITU_2_2,
|
|
|
|
MOV_CH_LAYOUT_AC3_2_1_1,
|
|
|
|
MOV_CH_LAYOUT_DTS_3_1,
|
|
|
|
MOV_CH_LAYOUT_MPEG_5_0_D,
|
|
|
|
MOV_CH_LAYOUT_DVD_18,
|
|
|
|
MOV_CH_LAYOUT_DTS_4_1,
|
|
|
|
MOV_CH_LAYOUT_MPEG_5_1_D,
|
|
|
|
MOV_CH_LAYOUT_AAC_6_0,
|
|
|
|
MOV_CH_LAYOUT_DTS_6_0_A,
|
|
|
|
MOV_CH_LAYOUT_AAC_6_1,
|
|
|
|
MOV_CH_LAYOUT_AAC_7_0,
|
|
|
|
MOV_CH_LAYOUT_DTS_6_1_A,
|
|
|
|
MOV_CH_LAYOUT_AAC_OCTAGONAL,
|
|
|
|
MOV_CH_LAYOUT_MPEG_7_1_B,
|
|
|
|
MOV_CH_LAYOUT_DTS_8_0_A,
|
|
|
|
0,
|
|
|
|
};
|
|
|
|
|
|
|
|
static const enum MovChannelLayoutTag mov_ch_layouts_ac3[] = {
|
|
|
|
MOV_CH_LAYOUT_MONO,
|
|
|
|
MOV_CH_LAYOUT_STEREO,
|
|
|
|
MOV_CH_LAYOUT_AC3_1_0_1,
|
|
|
|
MOV_CH_LAYOUT_AC3_3_0,
|
|
|
|
MOV_CH_LAYOUT_ITU_2_1,
|
|
|
|
MOV_CH_LAYOUT_DVD_4,
|
|
|
|
MOV_CH_LAYOUT_AC3_3_1,
|
|
|
|
MOV_CH_LAYOUT_ITU_2_2,
|
|
|
|
MOV_CH_LAYOUT_AC3_2_1_1,
|
|
|
|
MOV_CH_LAYOUT_AC3_3_0_1,
|
|
|
|
MOV_CH_LAYOUT_MPEG_5_0_C,
|
|
|
|
MOV_CH_LAYOUT_DVD_18,
|
|
|
|
MOV_CH_LAYOUT_AC3_3_1_1,
|
|
|
|
MOV_CH_LAYOUT_MPEG_5_1_C,
|
|
|
|
0,
|
|
|
|
};
|
|
|
|
|
|
|
|
static const enum MovChannelLayoutTag mov_ch_layouts_alac[] = {
|
|
|
|
MOV_CH_LAYOUT_MONO,
|
|
|
|
MOV_CH_LAYOUT_STEREO,
|
|
|
|
MOV_CH_LAYOUT_MPEG_3_0_B,
|
|
|
|
MOV_CH_LAYOUT_MPEG_4_0_B,
|
|
|
|
MOV_CH_LAYOUT_MPEG_5_0_D,
|
|
|
|
MOV_CH_LAYOUT_MPEG_5_1_D,
|
|
|
|
MOV_CH_LAYOUT_AAC_6_1,
|
|
|
|
MOV_CH_LAYOUT_MPEG_7_1_B,
|
|
|
|
0,
|
|
|
|
};
|
|
|
|
|
|
|
|
static const enum MovChannelLayoutTag mov_ch_layouts_wav[] = {
|
|
|
|
MOV_CH_LAYOUT_MONO,
|
|
|
|
MOV_CH_LAYOUT_STEREO,
|
|
|
|
MOV_CH_LAYOUT_MATRIXSTEREO,
|
|
|
|
MOV_CH_LAYOUT_MPEG_3_0_A,
|
|
|
|
MOV_CH_LAYOUT_QUADRAPHONIC,
|
|
|
|
MOV_CH_LAYOUT_MPEG_5_0_A,
|
|
|
|
MOV_CH_LAYOUT_MPEG_5_1_A,
|
|
|
|
MOV_CH_LAYOUT_MPEG_6_1_A,
|
|
|
|
MOV_CH_LAYOUT_MPEG_7_1_A,
|
|
|
|
MOV_CH_LAYOUT_MPEG_7_1_C,
|
|
|
|
MOV_CH_LAYOUT_SMPTE_DTV,
|
|
|
|
0,
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct {
|
|
|
|
enum AVCodecID codec_id;
|
|
|
|
const enum MovChannelLayoutTag *layouts;
|
|
|
|
} mov_codec_ch_layouts[] = {
|
|
|
|
{ AV_CODEC_ID_AAC, mov_ch_layouts_aac },
|
|
|
|
{ AV_CODEC_ID_AC3, mov_ch_layouts_ac3 },
|
|
|
|
{ AV_CODEC_ID_ALAC, mov_ch_layouts_alac },
|
|
|
|
{ AV_CODEC_ID_PCM_U8, mov_ch_layouts_wav },
|
|
|
|
{ AV_CODEC_ID_PCM_S8, mov_ch_layouts_wav },
|
|
|
|
{ AV_CODEC_ID_PCM_S16LE, mov_ch_layouts_wav },
|
|
|
|
{ AV_CODEC_ID_PCM_S16BE, mov_ch_layouts_wav },
|
|
|
|
{ AV_CODEC_ID_PCM_S24LE, mov_ch_layouts_wav },
|
|
|
|
{ AV_CODEC_ID_PCM_S24BE, mov_ch_layouts_wav },
|
|
|
|
{ AV_CODEC_ID_PCM_S32LE, mov_ch_layouts_wav },
|
|
|
|
{ AV_CODEC_ID_PCM_S32BE, mov_ch_layouts_wav },
|
|
|
|
{ AV_CODEC_ID_PCM_F32LE, mov_ch_layouts_wav },
|
|
|
|
{ AV_CODEC_ID_PCM_F32BE, mov_ch_layouts_wav },
|
|
|
|
{ AV_CODEC_ID_PCM_F64LE, mov_ch_layouts_wav },
|
|
|
|
{ AV_CODEC_ID_PCM_F64BE, mov_ch_layouts_wav },
|
|
|
|
{ AV_CODEC_ID_NONE, NULL },
|
|
|
|
};
|
|
|
|
|
|
|
|
uint64_t ff_mov_get_channel_layout(uint32_t tag, uint32_t bitmap)
|
|
|
|
{
|
|
|
|
int i, channels;
|
|
|
|
const struct MovChannelLayoutMap *layout_map;
|
|
|
|
|
|
|
|
/* use ff_mov_get_channel_label() to build a layout instead */
|
|
|
|
if (tag == MOV_CH_LAYOUT_USE_DESCRIPTIONS)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
/* handle the use of the channel bitmap */
|
|
|
|
if (tag == MOV_CH_LAYOUT_USE_BITMAP)
|
|
|
|
return bitmap < 0x40000 ? bitmap : 0;
|
|
|
|
|
|
|
|
/* get the layout map based on the channel count for the specified layout tag */
|
|
|
|
channels = tag & 0xFFFF;
|
|
|
|
if (channels > 9)
|
|
|
|
channels = 0;
|
|
|
|
layout_map = mov_ch_layout_map[channels];
|
|
|
|
|
|
|
|
/* find the channel layout for the specified layout tag */
|
|
|
|
for (i = 0; layout_map[i].tag != 0; i++) {
|
|
|
|
if (layout_map[i].tag == tag)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return layout_map[i].layout;
|
|
|
|
}
|
|
|
|
|
|
|
|
static uint32_t mov_get_channel_label(uint32_t label)
|
|
|
|
{
|
|
|
|
if (label == 0)
|
|
|
|
return 0;
|
|
|
|
if (label <= 18)
|
|
|
|
return 1U << (label - 1);
|
|
|
|
if (label == 38)
|
|
|
|
return AV_CH_STEREO_LEFT;
|
|
|
|
if (label == 39)
|
|
|
|
return AV_CH_STEREO_RIGHT;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
uint32_t ff_mov_get_channel_layout_tag(enum AVCodecID codec_id,
|
|
|
|
uint64_t channel_layout,
|
|
|
|
uint32_t *bitmap)
|
|
|
|
{
|
|
|
|
int i, j;
|
|
|
|
uint32_t tag = 0;
|
|
|
|
const enum MovChannelLayoutTag *layouts = NULL;
|
|
|
|
|
|
|
|
/* find the layout list for the specified codec */
|
|
|
|
for (i = 0; mov_codec_ch_layouts[i].codec_id != AV_CODEC_ID_NONE; i++) {
|
|
|
|
if (mov_codec_ch_layouts[i].codec_id == codec_id)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (mov_codec_ch_layouts[i].codec_id != AV_CODEC_ID_NONE)
|
|
|
|
layouts = mov_codec_ch_layouts[i].layouts;
|
|
|
|
|
|
|
|
if (layouts) {
|
|
|
|
int channels;
|
|
|
|
const struct MovChannelLayoutMap *layout_map;
|
|
|
|
|
|
|
|
/* get the layout map based on the channel count */
|
|
|
|
channels = av_get_channel_layout_nb_channels(channel_layout);
|
|
|
|
if (channels > 9)
|
|
|
|
channels = 0;
|
|
|
|
layout_map = mov_ch_layout_map[channels];
|
|
|
|
|
|
|
|
/* find the layout tag for the specified channel layout */
|
|
|
|
for (i = 0; layouts[i] != 0; i++) {
|
|
|
|
if ((layouts[i] & 0xFFFF) != channels)
|
|
|
|
continue;
|
|
|
|
for (j = 0; layout_map[j].tag != 0; j++) {
|
|
|
|
if (layout_map[j].tag == layouts[i] &&
|
|
|
|
layout_map[j].layout == channel_layout)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (layout_map[j].tag)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
tag = layouts[i];
|
|
|
|
}
|
|
|
|
|
|
|
|
/* if no tag was found, use channel bitmap as a backup if possible */
|
|
|
|
if (tag == 0 && channel_layout > 0 && channel_layout < 0x40000) {
|
|
|
|
tag = MOV_CH_LAYOUT_USE_BITMAP;
|
|
|
|
*bitmap = (uint32_t)channel_layout;
|
|
|
|
} else
|
|
|
|
*bitmap = 0;
|
|
|
|
|
|
|
|
/* TODO: set channel descriptions as a secondary backup */
|
|
|
|
|
|
|
|
return tag;
|
|
|
|
}
|
|
|
|
|
|
|
|
int ff_mov_read_chan(AVFormatContext *s, AVIOContext *pb, AVStream *st,
|
|
|
|
int64_t size)
|
|
|
|
{
|
|
|
|
uint32_t layout_tag, bitmap, num_descr, label_mask;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
if (size < 12)
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
|
|
|
|
layout_tag = avio_rb32(pb);
|
|
|
|
bitmap = avio_rb32(pb);
|
|
|
|
num_descr = avio_rb32(pb);
|
|
|
|
|
|
|
|
av_log(s, AV_LOG_TRACE, "chan: layout=%"PRIu32" "
|
|
|
|
"bitmap=%"PRIu32" num_descr=%"PRIu32"\n",
|
|
|
|
layout_tag, bitmap, num_descr);
|
|
|
|
|
|
|
|
if (size < 12ULL + num_descr * 20ULL)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
label_mask = 0;
|
|
|
|
for (i = 0; i < num_descr; i++) {
|
|
|
|
uint32_t label;
|
|
|
|
if (pb->eof_reached) {
|
|
|
|
av_log(s, AV_LOG_ERROR,
|
|
|
|
"reached EOF while reading channel layout\n");
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
}
|
|
|
|
label = avio_rb32(pb); // mChannelLabel
|
|
|
|
avio_rb32(pb); // mChannelFlags
|
|
|
|
avio_rl32(pb); // mCoordinates[0]
|
|
|
|
avio_rl32(pb); // mCoordinates[1]
|
|
|
|
avio_rl32(pb); // mCoordinates[2]
|
|
|
|
size -= 20;
|
|
|
|
if (layout_tag == 0) {
|
|
|
|
uint32_t mask_incr = mov_get_channel_label(label);
|
|
|
|
if (mask_incr == 0) {
|
|
|
|
label_mask = 0;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
label_mask |= mask_incr;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (layout_tag == 0) {
|
|
|
|
if (label_mask)
|
lavf: replace AVStream.codec with AVStream.codecpar
Currently, AVStream contains an embedded AVCodecContext instance, which
is used by demuxers to export stream parameters to the caller and by
muxers to receive stream parameters from the caller. It is also used
internally as the codec context that is passed to parsers.
In addition, it is also widely used by the callers as the decoding (when
demuxer) or encoding (when muxing) context, though this has been
officially discouraged since Libav 11.
There are multiple important problems with this approach:
- the fields in AVCodecContext are in general one of
* stream parameters
* codec options
* codec state
However, it's not clear which ones are which. It is consequently
unclear which fields are a demuxer allowed to set or a muxer allowed to
read. This leads to erratic behaviour depending on whether decoding or
encoding is being performed or not (and whether it uses the AVStream
embedded codec context).
- various synchronization issues arising from the fact that the same
context is used by several different APIs (muxers/demuxers,
parsers, bitstream filters and encoders/decoders) simultaneously, with
there being no clear rules for who can modify what and the different
processes being typically delayed with respect to each other.
- avformat_find_stream_info() making it necessary to support opening
and closing a single codec context multiple times, thus
complicating the semantics of freeing various allocated objects in the
codec context.
Those problems are resolved by replacing the AVStream embedded codec
context with a newly added AVCodecParameters instance, which stores only
the stream parameters exported by the demuxers or read by the muxers.
11 years ago
|
|
|
st->codecpar->channel_layout = label_mask;
|
|
|
|
} else
|
lavf: replace AVStream.codec with AVStream.codecpar
Currently, AVStream contains an embedded AVCodecContext instance, which
is used by demuxers to export stream parameters to the caller and by
muxers to receive stream parameters from the caller. It is also used
internally as the codec context that is passed to parsers.
In addition, it is also widely used by the callers as the decoding (when
demuxer) or encoding (when muxing) context, though this has been
officially discouraged since Libav 11.
There are multiple important problems with this approach:
- the fields in AVCodecContext are in general one of
* stream parameters
* codec options
* codec state
However, it's not clear which ones are which. It is consequently
unclear which fields are a demuxer allowed to set or a muxer allowed to
read. This leads to erratic behaviour depending on whether decoding or
encoding is being performed or not (and whether it uses the AVStream
embedded codec context).
- various synchronization issues arising from the fact that the same
context is used by several different APIs (muxers/demuxers,
parsers, bitstream filters and encoders/decoders) simultaneously, with
there being no clear rules for who can modify what and the different
processes being typically delayed with respect to each other.
- avformat_find_stream_info() making it necessary to support opening
and closing a single codec context multiple times, thus
complicating the semantics of freeing various allocated objects in the
codec context.
Those problems are resolved by replacing the AVStream embedded codec
context with a newly added AVCodecParameters instance, which stores only
the stream parameters exported by the demuxers or read by the muxers.
11 years ago
|
|
|
st->codecpar->channel_layout = ff_mov_get_channel_layout(layout_tag, bitmap);
|
|
|
|
avio_skip(pb, size - 12);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|