1 /* 2 * Copyright (c) 2011 Justin Ruggles 3 * 4 * This file is part of FFmpeg. 5 * 6 * FFmpeg is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * FFmpeg is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with FFmpeg; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 19 */ 20 21 /** 22 * mov 'chan' tag reading/writing. 23 * @author Justin Ruggles 24 */ 25 26 #ifndef AVFORMAT_MOV_CHAN_H 27 #define AVFORMAT_MOV_CHAN_H 28 29 #include <stdint.h> 30 31 #include "libavutil/channel_layout.h" 32 #include "libavcodec/codec_id.h" 33 #include "libavcodec/codec_par.h" 34 #include "avformat.h" 35 36 /** 37 * Channel Layout Tag 38 * This tells which channels are present in the audio stream and the order in 39 * which they appear. 40 * 41 * @note We're using the channel layout tag to indicate channel order 42 * when the value is greater than 0x10000. The Apple documentation has 43 * some contradictions as to how this is actually supposed to be handled. 44 * 45 * Core Audio File Format Spec: 46 * "The high 16 bits indicates a specific ordering of the channels." 47 * Core Audio Data Types Reference: 48 * "These identifiers specify the channels included in a layout but 49 * do not specify a particular ordering of those channels." 50 */ 51 enum MovChannelLayoutTag { 52 #define MOV_CH_LAYOUT_UNKNOWN 0xFFFF0000 53 MOV_CH_LAYOUT_USE_DESCRIPTIONS = ( 0 << 16) | 0, 54 MOV_CH_LAYOUT_USE_BITMAP = ( 1 << 16) | 0, 55 MOV_CH_LAYOUT_DISCRETEINORDER = (147 << 16) | 0, 56 MOV_CH_LAYOUT_MONO = (100 << 16) | 1, 57 MOV_CH_LAYOUT_STEREO = (101 << 16) | 2, 58 MOV_CH_LAYOUT_STEREOHEADPHONES = (102 << 16) | 2, 59 MOV_CH_LAYOUT_MATRIXSTEREO = (103 << 16) | 2, 60 MOV_CH_LAYOUT_MIDSIDE = (104 << 16) | 2, 61 MOV_CH_LAYOUT_XY = (105 << 16) | 2, 62 MOV_CH_LAYOUT_BINAURAL = (106 << 16) | 2, 63 MOV_CH_LAYOUT_AMBISONIC_B_FORMAT = (107 << 16) | 4, 64 MOV_CH_LAYOUT_QUADRAPHONIC = (108 << 16) | 4, 65 MOV_CH_LAYOUT_PENTAGONAL = (109 << 16) | 5, 66 MOV_CH_LAYOUT_HEXAGONAL = (110 << 16) | 6, 67 MOV_CH_LAYOUT_OCTAGONAL = (111 << 16) | 8, 68 MOV_CH_LAYOUT_CUBE = (112 << 16) | 8, 69 MOV_CH_LAYOUT_MPEG_3_0_A = (113 << 16) | 3, 70 MOV_CH_LAYOUT_MPEG_3_0_B = (114 << 16) | 3, 71 MOV_CH_LAYOUT_MPEG_4_0_A = (115 << 16) | 4, 72 MOV_CH_LAYOUT_MPEG_4_0_B = (116 << 16) | 4, 73 MOV_CH_LAYOUT_MPEG_5_0_A = (117 << 16) | 5, 74 MOV_CH_LAYOUT_MPEG_5_0_B = (118 << 16) | 5, 75 MOV_CH_LAYOUT_MPEG_5_0_C = (119 << 16) | 5, 76 MOV_CH_LAYOUT_MPEG_5_0_D = (120 << 16) | 5, 77 MOV_CH_LAYOUT_MPEG_5_1_A = (121 << 16) | 6, 78 MOV_CH_LAYOUT_MPEG_5_1_B = (122 << 16) | 6, 79 MOV_CH_LAYOUT_MPEG_5_1_C = (123 << 16) | 6, 80 MOV_CH_LAYOUT_MPEG_5_1_D = (124 << 16) | 6, 81 MOV_CH_LAYOUT_MPEG_6_1_A = (125 << 16) | 7, 82 MOV_CH_LAYOUT_MPEG_7_1_A = (126 << 16) | 8, 83 MOV_CH_LAYOUT_MPEG_7_1_B = (127 << 16) | 8, 84 MOV_CH_LAYOUT_MPEG_7_1_C = (128 << 16) | 8, 85 MOV_CH_LAYOUT_EMAGIC_DEFAULT_7_1 = (129 << 16) | 8, 86 MOV_CH_LAYOUT_SMPTE_DTV = (130 << 16) | 8, 87 MOV_CH_LAYOUT_ITU_2_1 = (131 << 16) | 3, 88 MOV_CH_LAYOUT_ITU_2_2 = (132 << 16) | 4, 89 MOV_CH_LAYOUT_DVD_4 = (133 << 16) | 3, 90 MOV_CH_LAYOUT_DVD_5 = (134 << 16) | 4, 91 MOV_CH_LAYOUT_DVD_6 = (135 << 16) | 5, 92 MOV_CH_LAYOUT_DVD_10 = (136 << 16) | 4, 93 MOV_CH_LAYOUT_DVD_11 = (137 << 16) | 5, 94 MOV_CH_LAYOUT_DVD_18 = (138 << 16) | 5, 95 MOV_CH_LAYOUT_AUDIOUNIT_6_0 = (139 << 16) | 6, 96 MOV_CH_LAYOUT_AUDIOUNIT_7_0 = (140 << 16) | 7, 97 MOV_CH_LAYOUT_AUDIOUNIT_7_0_FRONT = (148 << 16) | 7, 98 MOV_CH_LAYOUT_AAC_6_0 = (141 << 16) | 6, 99 MOV_CH_LAYOUT_AAC_6_1 = (142 << 16) | 7, 100 MOV_CH_LAYOUT_AAC_7_0 = (143 << 16) | 7, 101 MOV_CH_LAYOUT_AAC_OCTAGONAL = (144 << 16) | 8, 102 MOV_CH_LAYOUT_TMH_10_2_STD = (145 << 16) | 16, 103 MOV_CH_LAYOUT_TMH_10_2_FULL = (146 << 16) | 21, 104 MOV_CH_LAYOUT_AC3_1_0_1 = (149 << 16) | 2, 105 MOV_CH_LAYOUT_AC3_3_0 = (150 << 16) | 3, 106 MOV_CH_LAYOUT_AC3_3_1 = (151 << 16) | 4, 107 MOV_CH_LAYOUT_AC3_3_0_1 = (152 << 16) | 4, 108 MOV_CH_LAYOUT_AC3_2_1_1 = (153 << 16) | 4, 109 MOV_CH_LAYOUT_AC3_3_1_1 = (154 << 16) | 5, 110 MOV_CH_LAYOUT_EAC3_6_0_A = (155 << 16) | 6, 111 MOV_CH_LAYOUT_EAC3_7_0_A = (156 << 16) | 7, 112 MOV_CH_LAYOUT_EAC3_6_1_A = (157 << 16) | 7, 113 MOV_CH_LAYOUT_EAC3_6_1_B = (158 << 16) | 7, 114 MOV_CH_LAYOUT_EAC3_6_1_C = (159 << 16) | 7, 115 MOV_CH_LAYOUT_EAC3_7_1_A = (160 << 16) | 8, 116 MOV_CH_LAYOUT_EAC3_7_1_B = (161 << 16) | 8, 117 MOV_CH_LAYOUT_EAC3_7_1_C = (162 << 16) | 8, 118 MOV_CH_LAYOUT_EAC3_7_1_D = (163 << 16) | 8, 119 MOV_CH_LAYOUT_EAC3_7_1_E = (164 << 16) | 8, 120 MOV_CH_LAYOUT_EAC3_7_1_F = (165 << 16) | 8, 121 MOV_CH_LAYOUT_EAC3_7_1_G = (166 << 16) | 8, 122 MOV_CH_LAYOUT_EAC3_7_1_H = (167 << 16) | 8, 123 MOV_CH_LAYOUT_DTS_3_1 = (168 << 16) | 4, 124 MOV_CH_LAYOUT_DTS_4_1 = (169 << 16) | 5, 125 MOV_CH_LAYOUT_DTS_6_0_A = (170 << 16) | 6, 126 MOV_CH_LAYOUT_DTS_6_0_B = (171 << 16) | 6, 127 MOV_CH_LAYOUT_DTS_6_0_C = (172 << 16) | 6, 128 MOV_CH_LAYOUT_DTS_6_1_A = (173 << 16) | 7, 129 MOV_CH_LAYOUT_DTS_6_1_B = (174 << 16) | 7, 130 MOV_CH_LAYOUT_DTS_6_1_C = (175 << 16) | 7, 131 MOV_CH_LAYOUT_DTS_6_1_D = (182 << 16) | 7, 132 MOV_CH_LAYOUT_DTS_7_0 = (176 << 16) | 7, 133 MOV_CH_LAYOUT_DTS_7_1 = (177 << 16) | 8, 134 MOV_CH_LAYOUT_DTS_8_0_A = (178 << 16) | 8, 135 MOV_CH_LAYOUT_DTS_8_0_B = (179 << 16) | 8, 136 MOV_CH_LAYOUT_DTS_8_1_A = (180 << 16) | 9, 137 MOV_CH_LAYOUT_DTS_8_1_B = (181 << 16) | 9, 138 }; 139 140 /** 141 * Get the channel layout tag for the specified codec id and channel layout. 142 * If the layout tag was not found, use a channel bitmap if possible. 143 * 144 * @param[in] codec_id codec id 145 * @param[in] channel_layout channel layout 146 * @param[out] bitmap channel bitmap 147 * @return channel layout tag 148 */ 149 int ff_mov_get_channel_layout_tag(const AVCodecParameters *par, 150 uint32_t *layout, 151 uint32_t *bitmap, 152 uint32_t **pchannel_desc); 153 154 /** 155 * Read 'chan' tag from the input stream. 156 * 157 * @param s AVFormatContext 158 * @param pb AVIOContext 159 * @param st The stream to set codec values for 160 * @param size Remaining size in the 'chan' tag 161 * @return 0 if ok, or negative AVERROR code on failure 162 */ 163 int ff_mov_read_chan(AVFormatContext *s, AVIOContext *pb, AVStream *st, 164 int64_t size); 165 166 #endif /* AVFORMAT_MOV_CHAN_H */ 167