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@ -33,6 +33,110 @@ |
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#include "libavcodec/codec_par.h" |
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#include "avformat.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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/**
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* Get the channel layout tag for the specified codec id and channel layout. |
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* If the layout tag was not found, use a channel bitmap if possible. |
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