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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * Copyright (c) 2011 Justin Ruggles |
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| 3 | * |
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| 4 | * This file is part of FFmpeg. |
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| 5 | * |
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| 6 | * FFmpeg is free software; you can redistribute it and/or |
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| 7 | * modify it under the terms of the GNU Lesser General Public |
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| 8 | * License as published by the Free Software Foundation; either |
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| 9 | * version 2.1 of the License, or (at your option) any later version. |
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| 10 | * |
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| 11 | * FFmpeg is distributed in the hope that it will be useful, |
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 14 | * Lesser General Public License for more details. |
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| 15 | * |
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| 16 | * You should have received a copy of the GNU Lesser General Public |
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| 17 | * License along with FFmpeg; if not, write to the Free Software |
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| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 19 | */ |
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| 20 | |||
| 21 | /** |
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| 22 | * mov 'chan' tag reading/writing. |
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| 23 | * @author Justin Ruggles |
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| 24 | */ |
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| 25 | |||
| 26 | #include |
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| 27 | |||
| 28 | #include "libavutil/channel_layout.h" |
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| 29 | #include "libavcodec/avcodec.h" |
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| 30 | #include "mov_chan.h" |
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| 31 | |||
| 32 | /** |
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| 33 | * Channel Layout Tag |
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| 34 | * This tells which channels are present in the audio stream and the order in |
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| 35 | * which they appear. |
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| 36 | * |
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| 37 | * @note We're using the channel layout tag to indicate channel order |
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| 38 | * when the value is greater than 0x10000. The Apple documentation has |
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| 39 | * some contradictions as to how this is actually supposed to be handled. |
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| 40 | * |
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| 41 | * Core Audio File Format Spec: |
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| 42 | * "The high 16 bits indicates a specific ordering of the channels." |
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| 43 | * Core Audio Data Types Reference: |
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| 44 | * "These identifiers specify the channels included in a layout but |
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| 45 | * do not specify a particular ordering of those channels." |
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| 46 | */ |
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| 47 | enum MovChannelLayoutTag { |
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| 48 | MOV_CH_LAYOUT_UNKNOWN = 0xFFFF0000, |
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| 49 | MOV_CH_LAYOUT_USE_DESCRIPTIONS = ( 0 << 16) | 0, |
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| 50 | MOV_CH_LAYOUT_USE_BITMAP = ( 1 << 16) | 0, |
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| 51 | MOV_CH_LAYOUT_DISCRETEINORDER = (147 << 16) | 0, |
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| 52 | MOV_CH_LAYOUT_MONO = (100 << 16) | 1, |
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| 53 | MOV_CH_LAYOUT_STEREO = (101 << 16) | 2, |
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| 54 | MOV_CH_LAYOUT_STEREOHEADPHONES = (102 << 16) | 2, |
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| 55 | MOV_CH_LAYOUT_MATRIXSTEREO = (103 << 16) | 2, |
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| 56 | MOV_CH_LAYOUT_MIDSIDE = (104 << 16) | 2, |
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| 57 | MOV_CH_LAYOUT_XY = (105 << 16) | 2, |
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| 58 | MOV_CH_LAYOUT_BINAURAL = (106 << 16) | 2, |
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| 59 | MOV_CH_LAYOUT_AMBISONIC_B_FORMAT = (107 << 16) | 4, |
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| 60 | MOV_CH_LAYOUT_QUADRAPHONIC = (108 << 16) | 4, |
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| 61 | MOV_CH_LAYOUT_PENTAGONAL = (109 << 16) | 5, |
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| 62 | MOV_CH_LAYOUT_HEXAGONAL = (110 << 16) | 6, |
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| 63 | MOV_CH_LAYOUT_OCTAGONAL = (111 << 16) | 8, |
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| 64 | MOV_CH_LAYOUT_CUBE = (112 << 16) | 8, |
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| 65 | MOV_CH_LAYOUT_MPEG_3_0_A = (113 << 16) | 3, |
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| 66 | MOV_CH_LAYOUT_MPEG_3_0_B = (114 << 16) | 3, |
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| 67 | MOV_CH_LAYOUT_MPEG_4_0_A = (115 << 16) | 4, |
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| 68 | MOV_CH_LAYOUT_MPEG_4_0_B = (116 << 16) | 4, |
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| 69 | MOV_CH_LAYOUT_MPEG_5_0_A = (117 << 16) | 5, |
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| 70 | MOV_CH_LAYOUT_MPEG_5_0_B = (118 << 16) | 5, |
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| 71 | MOV_CH_LAYOUT_MPEG_5_0_C = (119 << 16) | 5, |
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| 72 | MOV_CH_LAYOUT_MPEG_5_0_D = (120 << 16) | 5, |
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| 73 | MOV_CH_LAYOUT_MPEG_5_1_A = (121 << 16) | 6, |
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| 74 | MOV_CH_LAYOUT_MPEG_5_1_B = (122 << 16) | 6, |
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| 75 | MOV_CH_LAYOUT_MPEG_5_1_C = (123 << 16) | 6, |
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| 76 | MOV_CH_LAYOUT_MPEG_5_1_D = (124 << 16) | 6, |
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| 77 | MOV_CH_LAYOUT_MPEG_6_1_A = (125 << 16) | 7, |
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| 78 | MOV_CH_LAYOUT_MPEG_7_1_A = (126 << 16) | 8, |
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| 79 | MOV_CH_LAYOUT_MPEG_7_1_B = (127 << 16) | 8, |
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| 80 | MOV_CH_LAYOUT_MPEG_7_1_C = (128 << 16) | 8, |
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| 81 | MOV_CH_LAYOUT_EMAGIC_DEFAULT_7_1 = (129 << 16) | 8, |
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| 82 | MOV_CH_LAYOUT_SMPTE_DTV = (130 << 16) | 8, |
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| 83 | MOV_CH_LAYOUT_ITU_2_1 = (131 << 16) | 3, |
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| 84 | MOV_CH_LAYOUT_ITU_2_2 = (132 << 16) | 4, |
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| 85 | MOV_CH_LAYOUT_DVD_4 = (133 << 16) | 3, |
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| 86 | MOV_CH_LAYOUT_DVD_5 = (134 << 16) | 4, |
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| 87 | MOV_CH_LAYOUT_DVD_6 = (135 << 16) | 5, |
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| 88 | MOV_CH_LAYOUT_DVD_10 = (136 << 16) | 4, |
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| 89 | MOV_CH_LAYOUT_DVD_11 = (137 << 16) | 5, |
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| 90 | MOV_CH_LAYOUT_DVD_18 = (138 << 16) | 5, |
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| 91 | MOV_CH_LAYOUT_AUDIOUNIT_6_0 = (139 << 16) | 6, |
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| 92 | MOV_CH_LAYOUT_AUDIOUNIT_7_0 = (140 << 16) | 7, |
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| 93 | MOV_CH_LAYOUT_AUDIOUNIT_7_0_FRONT = (148 << 16) | 7, |
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| 94 | MOV_CH_LAYOUT_AAC_6_0 = (141 << 16) | 6, |
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| 95 | MOV_CH_LAYOUT_AAC_6_1 = (142 << 16) | 7, |
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| 96 | MOV_CH_LAYOUT_AAC_7_0 = (143 << 16) | 7, |
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| 97 | MOV_CH_LAYOUT_AAC_OCTAGONAL = (144 << 16) | 8, |
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| 98 | MOV_CH_LAYOUT_TMH_10_2_STD = (145 << 16) | 16, |
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| 99 | MOV_CH_LAYOUT_TMH_10_2_FULL = (146 << 16) | 21, |
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| 100 | MOV_CH_LAYOUT_AC3_1_0_1 = (149 << 16) | 2, |
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| 101 | MOV_CH_LAYOUT_AC3_3_0 = (150 << 16) | 3, |
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| 102 | MOV_CH_LAYOUT_AC3_3_1 = (151 << 16) | 4, |
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| 103 | MOV_CH_LAYOUT_AC3_3_0_1 = (152 << 16) | 4, |
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| 104 | MOV_CH_LAYOUT_AC3_2_1_1 = (153 << 16) | 4, |
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| 105 | MOV_CH_LAYOUT_AC3_3_1_1 = (154 << 16) | 5, |
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| 106 | MOV_CH_LAYOUT_EAC3_6_0_A = (155 << 16) | 6, |
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| 107 | MOV_CH_LAYOUT_EAC3_7_0_A = (156 << 16) | 7, |
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| 108 | MOV_CH_LAYOUT_EAC3_6_1_A = (157 << 16) | 7, |
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| 109 | MOV_CH_LAYOUT_EAC3_6_1_B = (158 << 16) | 7, |
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| 110 | MOV_CH_LAYOUT_EAC3_6_1_C = (159 << 16) | 7, |
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| 111 | MOV_CH_LAYOUT_EAC3_7_1_A = (160 << 16) | 8, |
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| 112 | MOV_CH_LAYOUT_EAC3_7_1_B = (161 << 16) | 8, |
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| 113 | MOV_CH_LAYOUT_EAC3_7_1_C = (162 << 16) | 8, |
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| 114 | MOV_CH_LAYOUT_EAC3_7_1_D = (163 << 16) | 8, |
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| 115 | MOV_CH_LAYOUT_EAC3_7_1_E = (164 << 16) | 8, |
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| 116 | MOV_CH_LAYOUT_EAC3_7_1_F = (165 << 16) | 8, |
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| 117 | MOV_CH_LAYOUT_EAC3_7_1_G = (166 << 16) | 8, |
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| 118 | MOV_CH_LAYOUT_EAC3_7_1_H = (167 << 16) | 8, |
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| 119 | MOV_CH_LAYOUT_DTS_3_1 = (168 << 16) | 4, |
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| 120 | MOV_CH_LAYOUT_DTS_4_1 = (169 << 16) | 5, |
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| 121 | MOV_CH_LAYOUT_DTS_6_0_A = (170 << 16) | 6, |
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| 122 | MOV_CH_LAYOUT_DTS_6_0_B = (171 << 16) | 6, |
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| 123 | MOV_CH_LAYOUT_DTS_6_0_C = (172 << 16) | 6, |
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| 124 | MOV_CH_LAYOUT_DTS_6_1_A = (173 << 16) | 7, |
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| 125 | MOV_CH_LAYOUT_DTS_6_1_B = (174 << 16) | 7, |
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| 126 | MOV_CH_LAYOUT_DTS_6_1_C = (175 << 16) | 7, |
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| 127 | MOV_CH_LAYOUT_DTS_6_1_D = (182 << 16) | 7, |
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| 128 | MOV_CH_LAYOUT_DTS_7_0 = (176 << 16) | 7, |
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| 129 | MOV_CH_LAYOUT_DTS_7_1 = (177 << 16) | 8, |
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| 130 | MOV_CH_LAYOUT_DTS_8_0_A = (178 << 16) | 8, |
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| 131 | MOV_CH_LAYOUT_DTS_8_0_B = (179 << 16) | 8, |
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| 132 | MOV_CH_LAYOUT_DTS_8_1_A = (180 << 16) | 9, |
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| 133 | MOV_CH_LAYOUT_DTS_8_1_B = (181 << 16) | 9, |
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| 134 | }; |
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| 135 | |||
| 136 | struct MovChannelLayoutMap { |
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| 137 | uint32_t tag; |
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| 138 | uint64_t layout; |
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| 139 | }; |
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| 140 | |||
| 141 | static const struct MovChannelLayoutMap mov_ch_layout_map_misc[] = { |
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| 142 | { MOV_CH_LAYOUT_USE_DESCRIPTIONS, 0 }, |
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| 143 | { MOV_CH_LAYOUT_USE_BITMAP, 0 }, |
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| 144 | { MOV_CH_LAYOUT_DISCRETEINORDER, 0 }, |
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| 145 | { MOV_CH_LAYOUT_UNKNOWN, 0 }, |
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| 146 | { MOV_CH_LAYOUT_TMH_10_2_STD, 0 }, // L, R, C, Vhc, Lsd, Rsd, |
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| 147 | // Ls, Rs, Vhl, Vhr, Lw, Rw, |
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| 148 | // Csd, Cs, LFE1, LFE2 |
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| 149 | { MOV_CH_LAYOUT_TMH_10_2_FULL, 0 }, // L, R, C, Vhc, Lsd, Rsd, |
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| 150 | // Ls, Rs, Vhl, Vhr, Lw, Rw, |
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| 151 | // Csd, Cs, LFE1, LFE2, Lc, Rc, |
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| 152 | // HI, VI, Haptic |
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| 153 | { 0, 0 }, |
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| 154 | }; |
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| 155 | |||
| 156 | static const struct MovChannelLayoutMap mov_ch_layout_map_1ch[] = { |
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| 157 | { MOV_CH_LAYOUT_MONO, AV_CH_LAYOUT_MONO }, // C |
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| 158 | { 0, 0 }, |
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| 159 | }; |
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| 160 | |||
| 161 | static const struct MovChannelLayoutMap mov_ch_layout_map_2ch[] = { |
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| 162 | { MOV_CH_LAYOUT_STEREO, AV_CH_LAYOUT_STEREO }, // L, R |
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| 163 | { MOV_CH_LAYOUT_STEREOHEADPHONES, AV_CH_LAYOUT_STEREO }, // L, R |
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| 164 | { MOV_CH_LAYOUT_BINAURAL, AV_CH_LAYOUT_STEREO }, // L, R |
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| 165 | { MOV_CH_LAYOUT_MIDSIDE, AV_CH_LAYOUT_STEREO }, // C, sides |
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| 166 | { MOV_CH_LAYOUT_XY, AV_CH_LAYOUT_STEREO }, // X (left), Y (right) |
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| 167 | |||
| 168 | { MOV_CH_LAYOUT_MATRIXSTEREO, AV_CH_LAYOUT_STEREO_DOWNMIX }, // Lt, Rt |
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| 169 | |||
| 170 | { MOV_CH_LAYOUT_AC3_1_0_1, AV_CH_LAYOUT_MONO | // C, LFE |
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| 171 | AV_CH_LOW_FREQUENCY }, |
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| 172 | { 0, 0 }, |
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| 173 | }; |
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| 174 | |||
| 175 | static const struct MovChannelLayoutMap mov_ch_layout_map_3ch[] = { |
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| 176 | { MOV_CH_LAYOUT_MPEG_3_0_A, AV_CH_LAYOUT_SURROUND }, // L, R, C |
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| 177 | { MOV_CH_LAYOUT_MPEG_3_0_B, AV_CH_LAYOUT_SURROUND }, // C, L, R |
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| 178 | { MOV_CH_LAYOUT_AC3_3_0, AV_CH_LAYOUT_SURROUND }, // L, C, R |
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| 179 | |||
| 180 | { MOV_CH_LAYOUT_ITU_2_1, AV_CH_LAYOUT_2_1 }, // L, R, Cs |
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| 181 | |||
| 182 | { MOV_CH_LAYOUT_DVD_4, AV_CH_LAYOUT_2POINT1 }, // L, R, LFE |
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| 183 | { 0, 0 }, |
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| 184 | }; |
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| 185 | |||
| 186 | static const struct MovChannelLayoutMap mov_ch_layout_map_4ch[] = { |
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| 187 | { MOV_CH_LAYOUT_AMBISONIC_B_FORMAT, 0 }, // W, X, Y, Z |
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| 188 | |||
| 189 | { MOV_CH_LAYOUT_QUADRAPHONIC, AV_CH_LAYOUT_QUAD }, // L, R, Rls, Rrs |
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| 190 | |||
| 191 | { MOV_CH_LAYOUT_MPEG_4_0_A, AV_CH_LAYOUT_4POINT0 }, // L, R, C, Cs |
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| 192 | { MOV_CH_LAYOUT_MPEG_4_0_B, AV_CH_LAYOUT_4POINT0 }, // C, L, R, Cs |
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| 193 | { MOV_CH_LAYOUT_AC3_3_1, AV_CH_LAYOUT_4POINT0 }, // L, C, R, Cs |
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| 194 | |||
| 195 | { MOV_CH_LAYOUT_ITU_2_2, AV_CH_LAYOUT_2_2 }, // L, R, Ls, Rs |
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| 196 | |||
| 197 | { MOV_CH_LAYOUT_DVD_5, AV_CH_LAYOUT_2_1 | // L, R, LFE, Cs |
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| 198 | AV_CH_LOW_FREQUENCY }, |
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| 199 | { MOV_CH_LAYOUT_AC3_2_1_1, AV_CH_LAYOUT_2_1 | // L, R, Cs, LFE |
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| 200 | AV_CH_LOW_FREQUENCY }, |
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| 201 | |||
| 202 | { MOV_CH_LAYOUT_DVD_10, AV_CH_LAYOUT_3POINT1 }, // L, R, C, LFE |
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| 203 | { MOV_CH_LAYOUT_AC3_3_0_1, AV_CH_LAYOUT_3POINT1 }, // L, C, R, LFE |
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| 204 | { MOV_CH_LAYOUT_DTS_3_1, AV_CH_LAYOUT_3POINT1 }, // C, L, R, LFE |
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| 205 | { 0, 0 }, |
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| 206 | }; |
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| 207 | |||
| 208 | static const struct MovChannelLayoutMap mov_ch_layout_map_5ch[] = { |
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| 209 | { MOV_CH_LAYOUT_PENTAGONAL, AV_CH_LAYOUT_5POINT0_BACK }, // L, R, Rls, Rrs, C |
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| 210 | |||
| 211 | { MOV_CH_LAYOUT_MPEG_5_0_A, AV_CH_LAYOUT_5POINT0 }, // L, R, C, Ls, Rs |
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| 212 | { MOV_CH_LAYOUT_MPEG_5_0_B, AV_CH_LAYOUT_5POINT0 }, // L, R, Ls, Rs, C |
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| 213 | { MOV_CH_LAYOUT_MPEG_5_0_C, AV_CH_LAYOUT_5POINT0 }, // L, C, R, Ls, Rs |
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| 214 | { MOV_CH_LAYOUT_MPEG_5_0_D, AV_CH_LAYOUT_5POINT0 }, // C, L, R, Ls, Rs |
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| 215 | |||
| 216 | { MOV_CH_LAYOUT_DVD_6, AV_CH_LAYOUT_2_2 | // L, R, LFE, Ls, Rs |
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| 217 | AV_CH_LOW_FREQUENCY }, |
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| 218 | { MOV_CH_LAYOUT_DVD_18, AV_CH_LAYOUT_2_2 | // L, R, Ls, Rs, LFE |
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| 219 | AV_CH_LOW_FREQUENCY }, |
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| 220 | |||
| 221 | { MOV_CH_LAYOUT_DVD_11, AV_CH_LAYOUT_4POINT1 }, // L, R, C, LFE, Cs |
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| 222 | { MOV_CH_LAYOUT_AC3_3_1_1, AV_CH_LAYOUT_4POINT1 }, // L, C, R, Cs, LFE |
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| 223 | { MOV_CH_LAYOUT_DTS_4_1, AV_CH_LAYOUT_4POINT1 }, // C, L, R, Cs, LFE |
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| 224 | { 0, 0 }, |
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| 225 | }; |
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| 226 | |||
| 227 | static const struct MovChannelLayoutMap mov_ch_layout_map_6ch[] = { |
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| 228 | { MOV_CH_LAYOUT_HEXAGONAL, AV_CH_LAYOUT_HEXAGONAL }, // L, R, Rls, Rrs, C, Cs |
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| 229 | { MOV_CH_LAYOUT_DTS_6_0_C, AV_CH_LAYOUT_HEXAGONAL }, // C, Cs, L, R, Rls, Rrs |
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| 230 | |||
| 231 | { MOV_CH_LAYOUT_MPEG_5_1_A, AV_CH_LAYOUT_5POINT1 }, // L, R, C, LFE, Ls, Rs |
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| 232 | { MOV_CH_LAYOUT_MPEG_5_1_B, AV_CH_LAYOUT_5POINT1 }, // L, R, Ls, Rs, C, LFE |
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| 233 | { MOV_CH_LAYOUT_MPEG_5_1_C, AV_CH_LAYOUT_5POINT1 }, // L, C, R, Ls, Rs, LFE |
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| 234 | { MOV_CH_LAYOUT_MPEG_5_1_D, AV_CH_LAYOUT_5POINT1 }, // C, L, R, Ls, Rs, LFE |
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| 235 | |||
| 236 | { MOV_CH_LAYOUT_AUDIOUNIT_6_0, AV_CH_LAYOUT_6POINT0 }, // L, R, Ls, Rs, C, Cs |
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| 237 | { MOV_CH_LAYOUT_AAC_6_0, AV_CH_LAYOUT_6POINT0 }, // C, L, R, Ls, Rs, Cs |
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| 238 | { MOV_CH_LAYOUT_EAC3_6_0_A, AV_CH_LAYOUT_6POINT0 }, // L, C, R, Ls, Rs, Cs |
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| 239 | |||
| 240 | { MOV_CH_LAYOUT_DTS_6_0_A, AV_CH_LAYOUT_6POINT0_FRONT }, // Lc, Rc, L, R, Ls, Rs |
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| 241 | |||
| 242 | { MOV_CH_LAYOUT_DTS_6_0_B, AV_CH_LAYOUT_5POINT0_BACK | // C, L, R, Rls, Rrs, Ts |
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| 243 | AV_CH_TOP_CENTER }, |
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| 244 | { 0, 0 }, |
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| 245 | }; |
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| 246 | |||
| 247 | static const struct MovChannelLayoutMap mov_ch_layout_map_7ch[] = { |
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| 248 | { MOV_CH_LAYOUT_MPEG_6_1_A, AV_CH_LAYOUT_6POINT1 }, // L, R, C, LFE, Ls, Rs, Cs |
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| 249 | { MOV_CH_LAYOUT_AAC_6_1, AV_CH_LAYOUT_6POINT1 }, // C, L, R, Ls, Rs, Cs, LFE |
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| 250 | { MOV_CH_LAYOUT_EAC3_6_1_A, AV_CH_LAYOUT_6POINT1 }, // L, C, R, Ls, Rs, LFE, Cs |
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| 251 | { MOV_CH_LAYOUT_DTS_6_1_D, AV_CH_LAYOUT_6POINT1 }, // C, L, R, Ls, Rs, LFE, Cs |
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| 252 | |||
| 253 | { MOV_CH_LAYOUT_AUDIOUNIT_7_0, AV_CH_LAYOUT_7POINT0 }, // L, R, Ls, Rs, C, Rls, Rrs |
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| 254 | { MOV_CH_LAYOUT_AAC_7_0, AV_CH_LAYOUT_7POINT0 }, // C, L, R, Ls, Rs, Rls, Rrs |
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| 255 | { MOV_CH_LAYOUT_EAC3_7_0_A, AV_CH_LAYOUT_7POINT0 }, // L, C, R, Ls, Rs, Rls, Rrs |
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| 256 | |||
| 257 | { MOV_CH_LAYOUT_AUDIOUNIT_7_0_FRONT, AV_CH_LAYOUT_7POINT0_FRONT }, // L, R, Ls, Rs, C, Lc, Rc |
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| 258 | { MOV_CH_LAYOUT_DTS_7_0, AV_CH_LAYOUT_7POINT0_FRONT }, // Lc, C, Rc, L, R, Ls, Rs |
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| 259 | |||
| 260 | { MOV_CH_LAYOUT_EAC3_6_1_B, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Ts |
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| 261 | AV_CH_TOP_CENTER }, |
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| 262 | |||
| 263 | { MOV_CH_LAYOUT_EAC3_6_1_C, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Vhc |
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| 264 | AV_CH_TOP_FRONT_CENTER }, |
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| 265 | |||
| 266 | { MOV_CH_LAYOUT_DTS_6_1_A, AV_CH_LAYOUT_6POINT1_FRONT }, // Lc, Rc, L, R, Ls, Rs, LFE |
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| 267 | |||
| 268 | { MOV_CH_LAYOUT_DTS_6_1_B, AV_CH_LAYOUT_5POINT1_BACK | // C, L, R, Rls, Rrs, Ts, LFE |
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| 269 | AV_CH_TOP_CENTER }, |
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| 270 | |||
| 271 | { MOV_CH_LAYOUT_DTS_6_1_C, AV_CH_LAYOUT_6POINT1_BACK }, // C, Cs, L, R, Rls, Rrs, LFE |
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| 272 | { 0, 0 }, |
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| 273 | }; |
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| 274 | |||
| 275 | static const struct MovChannelLayoutMap mov_ch_layout_map_8ch[] = { |
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| 276 | { MOV_CH_LAYOUT_OCTAGONAL, AV_CH_LAYOUT_OCTAGONAL }, // L, R, Rls, Rrs, C, Cs, Ls, Rs |
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| 277 | { MOV_CH_LAYOUT_AAC_OCTAGONAL, AV_CH_LAYOUT_OCTAGONAL }, // C, L, R, Ls, Rs, Rls, Rrs, Cs |
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| 278 | |||
| 279 | { MOV_CH_LAYOUT_CUBE, AV_CH_LAYOUT_QUAD | // L, R, Rls, Rrs, Vhl, Vhr, Rlt, Rrt |
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| 280 | AV_CH_TOP_FRONT_LEFT | |
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| 281 | AV_CH_TOP_FRONT_RIGHT | |
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| 282 | AV_CH_TOP_BACK_LEFT | |
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| 283 | AV_CH_TOP_BACK_RIGHT }, |
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| 284 | |||
| 285 | { MOV_CH_LAYOUT_MPEG_7_1_A, AV_CH_LAYOUT_7POINT1_WIDE }, // L, R, C, LFE, Ls, Rs, Lc, Rc |
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| 286 | { MOV_CH_LAYOUT_MPEG_7_1_B, AV_CH_LAYOUT_7POINT1_WIDE }, // C, Lc, Rc, L, R, Ls, Rs, LFE |
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| 287 | { MOV_CH_LAYOUT_EMAGIC_DEFAULT_7_1, AV_CH_LAYOUT_7POINT1_WIDE }, // L, R, Ls, Rs, C, LFE, Lc, Rc |
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| 288 | { MOV_CH_LAYOUT_EAC3_7_1_B, AV_CH_LAYOUT_7POINT1_WIDE }, // L, C, R, Ls, Rs, LFE, Lc, Rc |
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| 289 | { MOV_CH_LAYOUT_DTS_7_1, AV_CH_LAYOUT_7POINT1_WIDE }, // Lc, C, Rc, L, R, Ls, Rs, LFE |
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| 290 | |||
| 291 | { MOV_CH_LAYOUT_MPEG_7_1_C, AV_CH_LAYOUT_7POINT1 }, // L, R, C, LFE, Ls, Rs, Rls, Rrs |
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| 292 | { MOV_CH_LAYOUT_EAC3_7_1_A, AV_CH_LAYOUT_7POINT1 }, // L, C, R, Ls, Rs, LFE, Rls, Rrs |
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| 293 | |||
| 294 | { MOV_CH_LAYOUT_SMPTE_DTV, AV_CH_LAYOUT_5POINT1 | // L, R, C, LFE, Ls, Rs, Lt, Rt |
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| 295 | AV_CH_LAYOUT_STEREO_DOWNMIX }, |
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| 296 | |||
| 297 | { MOV_CH_LAYOUT_EAC3_7_1_C, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Lsd, Rsd |
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| 298 | AV_CH_SURROUND_DIRECT_LEFT | |
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| 299 | AV_CH_SURROUND_DIRECT_RIGHT }, |
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| 300 | |||
| 301 | { MOV_CH_LAYOUT_EAC3_7_1_D, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Lw, Rw |
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| 302 | AV_CH_WIDE_LEFT | |
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| 303 | AV_CH_WIDE_RIGHT }, |
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| 304 | |||
| 305 | { MOV_CH_LAYOUT_EAC3_7_1_E, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Vhl, Vhr |
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| 306 | AV_CH_TOP_FRONT_LEFT | |
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| 307 | AV_CH_TOP_FRONT_RIGHT }, |
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| 308 | |||
| 309 | { MOV_CH_LAYOUT_EAC3_7_1_F, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Cs, Ts |
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| 310 | AV_CH_BACK_CENTER | |
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| 311 | AV_CH_TOP_CENTER }, |
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| 312 | |||
| 313 | { MOV_CH_LAYOUT_EAC3_7_1_G, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Cs, Vhc |
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| 314 | AV_CH_BACK_CENTER | |
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| 315 | AV_CH_TOP_FRONT_CENTER }, |
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| 316 | |||
| 317 | { MOV_CH_LAYOUT_EAC3_7_1_H, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Ts, Vhc |
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| 318 | AV_CH_TOP_CENTER | |
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| 319 | AV_CH_TOP_FRONT_CENTER }, |
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| 320 | |||
| 321 | { MOV_CH_LAYOUT_DTS_8_0_A, AV_CH_LAYOUT_2_2 | // Lc, Rc, L, R, Ls, Rs, Rls, Rrs |
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| 322 | AV_CH_BACK_LEFT | |
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| 323 | AV_CH_BACK_RIGHT | |
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| 324 | AV_CH_FRONT_LEFT_OF_CENTER | |
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| 325 | AV_CH_FRONT_RIGHT_OF_CENTER }, |
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| 326 | |||
| 327 | { MOV_CH_LAYOUT_DTS_8_0_B, AV_CH_LAYOUT_5POINT0 | // Lc, C, Rc, L, R, Ls, Cs, Rs |
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| 328 | AV_CH_FRONT_LEFT_OF_CENTER | |
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| 329 | AV_CH_FRONT_RIGHT_OF_CENTER | |
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| 330 | AV_CH_BACK_CENTER }, |
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| 331 | { 0, 0 }, |
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| 332 | }; |
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| 333 | |||
| 334 | static const struct MovChannelLayoutMap mov_ch_layout_map_9ch[] = { |
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| 335 | { MOV_CH_LAYOUT_DTS_8_1_A, AV_CH_LAYOUT_2_2 | // Lc, Rc, L, R, Ls, Rs, Rls, Rrs, LFE |
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| 336 | AV_CH_BACK_LEFT | |
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| 337 | AV_CH_BACK_RIGHT | |
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| 338 | AV_CH_FRONT_LEFT_OF_CENTER | |
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| 339 | AV_CH_FRONT_RIGHT_OF_CENTER | |
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| 340 | AV_CH_LOW_FREQUENCY }, |
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| 341 | |||
| 342 | { MOV_CH_LAYOUT_DTS_8_1_B, AV_CH_LAYOUT_7POINT1_WIDE | // Lc, C, Rc, L, R, Ls, Cs, Rs, LFE |
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| 343 | AV_CH_BACK_CENTER }, |
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| 344 | { 0, 0 }, |
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| 345 | }; |
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| 346 | |||
| 347 | static const struct MovChannelLayoutMap *mov_ch_layout_map[] = { |
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| 348 | mov_ch_layout_map_misc, |
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| 349 | mov_ch_layout_map_1ch, |
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| 350 | mov_ch_layout_map_2ch, |
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| 351 | mov_ch_layout_map_3ch, |
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| 352 | mov_ch_layout_map_4ch, |
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| 353 | mov_ch_layout_map_5ch, |
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| 354 | mov_ch_layout_map_6ch, |
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| 355 | mov_ch_layout_map_7ch, |
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| 356 | mov_ch_layout_map_8ch, |
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| 357 | mov_ch_layout_map_9ch, |
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| 358 | }; |
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| 359 | |||
| 360 | static const enum MovChannelLayoutTag mov_ch_layouts_aac[] = { |
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| 361 | MOV_CH_LAYOUT_MONO, |
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| 362 | MOV_CH_LAYOUT_STEREO, |
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| 363 | MOV_CH_LAYOUT_AC3_1_0_1, |
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| 364 | MOV_CH_LAYOUT_MPEG_3_0_B, |
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| 365 | MOV_CH_LAYOUT_ITU_2_1, |
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| 366 | MOV_CH_LAYOUT_DVD_4, |
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| 367 | MOV_CH_LAYOUT_QUADRAPHONIC, |
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| 368 | MOV_CH_LAYOUT_MPEG_4_0_B, |
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| 369 | MOV_CH_LAYOUT_ITU_2_2, |
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| 370 | MOV_CH_LAYOUT_AC3_2_1_1, |
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| 371 | MOV_CH_LAYOUT_DTS_3_1, |
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| 372 | MOV_CH_LAYOUT_MPEG_5_0_D, |
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| 373 | MOV_CH_LAYOUT_DVD_18, |
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| 374 | MOV_CH_LAYOUT_DTS_4_1, |
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| 375 | MOV_CH_LAYOUT_MPEG_5_1_D, |
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| 376 | MOV_CH_LAYOUT_AAC_6_0, |
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| 377 | MOV_CH_LAYOUT_DTS_6_0_A, |
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| 378 | MOV_CH_LAYOUT_AAC_6_1, |
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| 379 | MOV_CH_LAYOUT_AAC_7_0, |
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| 380 | MOV_CH_LAYOUT_DTS_6_1_A, |
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| 381 | MOV_CH_LAYOUT_AAC_OCTAGONAL, |
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| 382 | MOV_CH_LAYOUT_MPEG_7_1_B, |
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| 383 | MOV_CH_LAYOUT_DTS_8_0_A, |
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| 384 | 0, |
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| 385 | }; |
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| 386 | |||
| 387 | static const enum MovChannelLayoutTag mov_ch_layouts_ac3[] = { |
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| 388 | MOV_CH_LAYOUT_MONO, |
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| 389 | MOV_CH_LAYOUT_STEREO, |
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| 390 | MOV_CH_LAYOUT_AC3_1_0_1, |
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| 391 | MOV_CH_LAYOUT_AC3_3_0, |
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| 392 | MOV_CH_LAYOUT_ITU_2_1, |
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| 393 | MOV_CH_LAYOUT_DVD_4, |
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| 394 | MOV_CH_LAYOUT_AC3_3_1, |
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| 395 | MOV_CH_LAYOUT_ITU_2_2, |
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| 396 | MOV_CH_LAYOUT_AC3_2_1_1, |
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| 397 | MOV_CH_LAYOUT_AC3_3_0_1, |
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| 398 | MOV_CH_LAYOUT_MPEG_5_0_C, |
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| 399 | MOV_CH_LAYOUT_DVD_18, |
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| 400 | MOV_CH_LAYOUT_AC3_3_1_1, |
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| 401 | MOV_CH_LAYOUT_MPEG_5_1_C, |
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| 402 | 0, |
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| 403 | }; |
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| 404 | |||
| 405 | static const enum MovChannelLayoutTag mov_ch_layouts_alac[] = { |
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| 406 | MOV_CH_LAYOUT_MONO, |
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| 407 | MOV_CH_LAYOUT_STEREO, |
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| 408 | MOV_CH_LAYOUT_MPEG_3_0_B, |
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| 409 | MOV_CH_LAYOUT_MPEG_4_0_B, |
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| 410 | MOV_CH_LAYOUT_MPEG_5_0_D, |
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| 411 | MOV_CH_LAYOUT_MPEG_5_1_D, |
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| 412 | MOV_CH_LAYOUT_AAC_6_1, |
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| 413 | MOV_CH_LAYOUT_MPEG_7_1_B, |
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| 414 | 0, |
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| 415 | }; |
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| 416 | |||
| 417 | static const enum MovChannelLayoutTag mov_ch_layouts_wav[] = { |
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| 418 | MOV_CH_LAYOUT_MONO, |
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| 419 | MOV_CH_LAYOUT_STEREO, |
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| 420 | MOV_CH_LAYOUT_MATRIXSTEREO, |
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| 421 | MOV_CH_LAYOUT_MPEG_3_0_A, |
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| 422 | MOV_CH_LAYOUT_QUADRAPHONIC, |
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| 423 | MOV_CH_LAYOUT_MPEG_5_0_A, |
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| 424 | MOV_CH_LAYOUT_MPEG_5_1_A, |
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| 425 | MOV_CH_LAYOUT_MPEG_6_1_A, |
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| 426 | MOV_CH_LAYOUT_MPEG_7_1_A, |
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| 427 | MOV_CH_LAYOUT_MPEG_7_1_C, |
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| 428 | MOV_CH_LAYOUT_SMPTE_DTV, |
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| 429 | 0, |
||
| 430 | }; |
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| 431 | |||
| 432 | static const struct { |
||
| 433 | enum AVCodecID codec_id; |
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| 434 | const enum MovChannelLayoutTag *layouts; |
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| 435 | } mov_codec_ch_layouts[] = { |
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| 436 | { AV_CODEC_ID_AAC, mov_ch_layouts_aac }, |
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| 437 | { AV_CODEC_ID_AC3, mov_ch_layouts_ac3 }, |
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| 438 | { AV_CODEC_ID_ALAC, mov_ch_layouts_alac }, |
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| 439 | { AV_CODEC_ID_PCM_U8, mov_ch_layouts_wav }, |
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| 440 | { AV_CODEC_ID_PCM_S8, mov_ch_layouts_wav }, |
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| 441 | { AV_CODEC_ID_PCM_S16LE, mov_ch_layouts_wav }, |
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| 442 | { AV_CODEC_ID_PCM_S16BE, mov_ch_layouts_wav }, |
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| 443 | { AV_CODEC_ID_PCM_S24LE, mov_ch_layouts_wav }, |
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| 444 | { AV_CODEC_ID_PCM_S24BE, mov_ch_layouts_wav }, |
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| 445 | { AV_CODEC_ID_PCM_S32LE, mov_ch_layouts_wav }, |
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| 446 | { AV_CODEC_ID_PCM_S32BE, mov_ch_layouts_wav }, |
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| 447 | { AV_CODEC_ID_PCM_F32LE, mov_ch_layouts_wav }, |
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| 448 | { AV_CODEC_ID_PCM_F32BE, mov_ch_layouts_wav }, |
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| 449 | { AV_CODEC_ID_PCM_F64LE, mov_ch_layouts_wav }, |
||
| 450 | { AV_CODEC_ID_PCM_F64BE, mov_ch_layouts_wav }, |
||
| 451 | { AV_CODEC_ID_NONE, NULL }, |
||
| 452 | }; |
||
| 453 | |||
| 454 | uint64_t ff_mov_get_channel_layout(uint32_t tag, uint32_t bitmap) |
||
| 455 | { |
||
| 456 | int i, channels; |
||
| 457 | const struct MovChannelLayoutMap *layout_map; |
||
| 458 | |||
| 459 | /* use ff_mov_get_channel_label() to build a layout instead */ |
||
| 460 | if (tag == MOV_CH_LAYOUT_USE_DESCRIPTIONS) |
||
| 461 | return 0; |
||
| 462 | |||
| 463 | /* handle the use of the channel bitmap */ |
||
| 464 | if (tag == MOV_CH_LAYOUT_USE_BITMAP) |
||
| 465 | return bitmap < 0x40000 ? bitmap : 0; |
||
| 466 | |||
| 467 | /* get the layout map based on the channel count for the specified layout tag */ |
||
| 468 | channels = tag & 0xFFFF; |
||
| 469 | if (channels > 9) |
||
| 470 | channels = 0; |
||
| 471 | layout_map = mov_ch_layout_map[channels]; |
||
| 472 | |||
| 473 | /* find the channel layout for the specified layout tag */ |
||
| 474 | for (i = 0; layout_map[i].tag != 0; i++) { |
||
| 475 | if (layout_map[i].tag == tag) |
||
| 476 | break; |
||
| 477 | } |
||
| 478 | return layout_map[i].layout; |
||
| 479 | } |
||
| 480 | |||
| 481 | static uint32_t mov_get_channel_label(uint32_t label) |
||
| 482 | { |
||
| 483 | if (label == 0) |
||
| 484 | return 0; |
||
| 485 | if (label <= 18) |
||
| 486 | return 1U << (label - 1); |
||
| 487 | if (label == 38) |
||
| 488 | return AV_CH_STEREO_LEFT; |
||
| 489 | if (label == 39) |
||
| 490 | return AV_CH_STEREO_RIGHT; |
||
| 491 | return 0; |
||
| 492 | } |
||
| 493 | |||
| 494 | uint32_t ff_mov_get_channel_layout_tag(enum AVCodecID codec_id, |
||
| 495 | uint64_t channel_layout, |
||
| 496 | uint32_t *bitmap) |
||
| 497 | { |
||
| 498 | int i, j; |
||
| 499 | uint32_t tag = 0; |
||
| 500 | const enum MovChannelLayoutTag *layouts = NULL; |
||
| 501 | |||
| 502 | /* find the layout list for the specified codec */ |
||
| 503 | for (i = 0; mov_codec_ch_layouts[i].codec_id != AV_CODEC_ID_NONE; i++) { |
||
| 504 | if (mov_codec_ch_layouts[i].codec_id == codec_id) |
||
| 505 | break; |
||
| 506 | } |
||
| 507 | if (mov_codec_ch_layouts[i].codec_id != AV_CODEC_ID_NONE) |
||
| 508 | layouts = mov_codec_ch_layouts[i].layouts; |
||
| 509 | |||
| 510 | if (layouts) { |
||
| 511 | int channels; |
||
| 512 | const struct MovChannelLayoutMap *layout_map; |
||
| 513 | |||
| 514 | /* get the layout map based on the channel count */ |
||
| 515 | channels = av_get_channel_layout_nb_channels(channel_layout); |
||
| 516 | if (channels > 9) |
||
| 517 | channels = 0; |
||
| 518 | layout_map = mov_ch_layout_map[channels]; |
||
| 519 | |||
| 520 | /* find the layout tag for the specified channel layout */ |
||
| 521 | for (i = 0; layouts[i] != 0; i++) { |
||
| 522 | if ((layouts[i] & 0xFFFF) != channels) |
||
| 523 | continue; |
||
| 524 | for (j = 0; layout_map[j].tag != 0; j++) { |
||
| 525 | if (layout_map[j].tag == layouts[i] && |
||
| 526 | layout_map[j].layout == channel_layout) |
||
| 527 | break; |
||
| 528 | } |
||
| 529 | if (layout_map[j].tag) |
||
| 530 | break; |
||
| 531 | } |
||
| 532 | tag = layouts[i]; |
||
| 533 | } |
||
| 534 | |||
| 535 | /* if no tag was found, use channel bitmap as a backup if possible */ |
||
| 536 | if (tag == 0 && channel_layout > 0 && channel_layout < 0x40000) { |
||
| 537 | tag = MOV_CH_LAYOUT_USE_BITMAP; |
||
| 538 | *bitmap = (uint32_t)channel_layout; |
||
| 539 | } else |
||
| 540 | *bitmap = 0; |
||
| 541 | |||
| 542 | /* TODO: set channel descriptions as a secondary backup */ |
||
| 543 | |||
| 544 | return tag; |
||
| 545 | } |
||
| 546 | |||
| 547 | int ff_mov_read_chan(AVFormatContext *s, AVIOContext *pb, AVStream *st, |
||
| 548 | int64_t size) |
||
| 549 | { |
||
| 550 | uint32_t layout_tag, bitmap, num_descr, label_mask; |
||
| 551 | int i; |
||
| 552 | |||
| 553 | if (size < 12) |
||
| 554 | return AVERROR_INVALIDDATA; |
||
| 555 | |||
| 556 | layout_tag = avio_rb32(pb); |
||
| 557 | bitmap = avio_rb32(pb); |
||
| 558 | num_descr = avio_rb32(pb); |
||
| 559 | |||
| 560 | av_dlog(s, "chan: layout=%u bitmap=%u num_descr=%u\n", |
||
| 561 | layout_tag, bitmap, num_descr); |
||
| 562 | |||
| 563 | if (size < 12ULL + num_descr * 20ULL) |
||
| 564 | return 0; |
||
| 565 | |||
| 566 | label_mask = 0; |
||
| 567 | for (i = 0; i < num_descr; i++) { |
||
| 568 | uint32_t label; |
||
| 569 | label = avio_rb32(pb); // mChannelLabel |
||
| 570 | avio_rb32(pb); // mChannelFlags |
||
| 571 | avio_rl32(pb); // mCoordinates[0] |
||
| 572 | avio_rl32(pb); // mCoordinates[1] |
||
| 573 | avio_rl32(pb); // mCoordinates[2] |
||
| 574 | size -= 20; |
||
| 575 | if (layout_tag == 0) { |
||
| 576 | uint32_t mask_incr = mov_get_channel_label(label); |
||
| 577 | if (mask_incr == 0) { |
||
| 578 | label_mask = 0; |
||
| 579 | break; |
||
| 580 | } |
||
| 581 | label_mask |= mask_incr; |
||
| 582 | } |
||
| 583 | } |
||
| 584 | if (layout_tag == 0) { |
||
| 585 | if (label_mask) |
||
| 586 | st->codec->channel_layout = label_mask; |
||
| 587 | } else |
||
| 588 | st->codec->channel_layout = ff_mov_get_channel_layout(layout_tag, bitmap); |
||
| 589 | avio_skip(pb, size - 12); |
||
| 590 | |||
| 591 | return 0; |
||
| 592 | } |