593 lines
25 KiB
C
593 lines
25 KiB
C
/*
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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/avcodec.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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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
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{ MOV_CH_LAYOUT_AAC_7_0, AV_CH_LAYOUT_7POINT0 }, // C, L, R, Ls, Rs, Rls, Rrs
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{ MOV_CH_LAYOUT_EAC3_7_0_A, AV_CH_LAYOUT_7POINT0 }, // L, C, R, Ls, Rs, Rls, Rrs
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{ MOV_CH_LAYOUT_AUDIOUNIT_7_0_FRONT, AV_CH_LAYOUT_7POINT0_FRONT }, // L, R, Ls, Rs, C, Lc, Rc
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{ MOV_CH_LAYOUT_DTS_7_0, AV_CH_LAYOUT_7POINT0_FRONT }, // Lc, C, Rc, L, R, Ls, Rs
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{ MOV_CH_LAYOUT_EAC3_6_1_B, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Ts
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AV_CH_TOP_CENTER },
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{ MOV_CH_LAYOUT_EAC3_6_1_C, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Vhc
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AV_CH_TOP_FRONT_CENTER },
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{ MOV_CH_LAYOUT_DTS_6_1_A, AV_CH_LAYOUT_6POINT1_FRONT }, // Lc, Rc, L, R, Ls, Rs, LFE
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{ MOV_CH_LAYOUT_DTS_6_1_B, AV_CH_LAYOUT_5POINT1_BACK | // C, L, R, Rls, Rrs, Ts, LFE
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AV_CH_TOP_CENTER },
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{ MOV_CH_LAYOUT_DTS_6_1_C, AV_CH_LAYOUT_6POINT1_BACK }, // C, Cs, L, R, Rls, Rrs, LFE
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{ 0, 0 },
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};
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static const struct MovChannelLayoutMap mov_ch_layout_map_8ch[] = {
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{ MOV_CH_LAYOUT_OCTAGONAL, AV_CH_LAYOUT_OCTAGONAL }, // L, R, Rls, Rrs, C, Cs, Ls, Rs
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{ MOV_CH_LAYOUT_AAC_OCTAGONAL, AV_CH_LAYOUT_OCTAGONAL }, // C, L, R, Ls, Rs, Rls, Rrs, Cs
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{ MOV_CH_LAYOUT_CUBE, AV_CH_LAYOUT_QUAD | // L, R, Rls, Rrs, Vhl, Vhr, Rlt, Rrt
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AV_CH_TOP_FRONT_LEFT |
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AV_CH_TOP_FRONT_RIGHT |
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AV_CH_TOP_BACK_LEFT |
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AV_CH_TOP_BACK_RIGHT },
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{ MOV_CH_LAYOUT_MPEG_7_1_A, AV_CH_LAYOUT_7POINT1_WIDE }, // L, R, C, LFE, Ls, Rs, Lc, Rc
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{ MOV_CH_LAYOUT_MPEG_7_1_B, AV_CH_LAYOUT_7POINT1_WIDE }, // C, Lc, Rc, L, R, Ls, Rs, LFE
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{ MOV_CH_LAYOUT_EMAGIC_DEFAULT_7_1, AV_CH_LAYOUT_7POINT1_WIDE }, // L, R, Ls, Rs, C, LFE, Lc, Rc
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{ MOV_CH_LAYOUT_EAC3_7_1_B, AV_CH_LAYOUT_7POINT1_WIDE }, // L, C, R, Ls, Rs, LFE, Lc, Rc
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{ MOV_CH_LAYOUT_DTS_7_1, AV_CH_LAYOUT_7POINT1_WIDE }, // Lc, C, Rc, L, R, Ls, Rs, LFE
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{ MOV_CH_LAYOUT_MPEG_7_1_C, AV_CH_LAYOUT_7POINT1 }, // L, R, C, LFE, Ls, Rs, Rls, Rrs
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{ MOV_CH_LAYOUT_EAC3_7_1_A, AV_CH_LAYOUT_7POINT1 }, // L, C, R, Ls, Rs, LFE, Rls, Rrs
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{ MOV_CH_LAYOUT_SMPTE_DTV, AV_CH_LAYOUT_5POINT1 | // L, R, C, LFE, Ls, Rs, Lt, Rt
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AV_CH_LAYOUT_STEREO_DOWNMIX },
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{ MOV_CH_LAYOUT_EAC3_7_1_C, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Lsd, Rsd
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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 *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_dlog(s, "chan: layout=%u bitmap=%u num_descr=%u\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;
|
|
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)
|
|
st->codec->channel_layout = label_mask;
|
|
} else
|
|
st->codec->channel_layout = ff_mov_get_channel_layout(layout_tag, bitmap);
|
|
avio_skip(pb, size - 12);
|
|
|
|
return 0;
|
|
}
|