yading@11: /* yading@11: * Copyright (c) 2011 Justin Ruggles yading@11: * yading@11: * This file is part of Libav. yading@11: * yading@11: * Libav is free software; you can redistribute it and/or yading@11: * modify it under the terms of the GNU Lesser General Public yading@11: * License as published by the Free Software Foundation; either yading@11: * version 2.1 of the License, or (at your option) any later version. yading@11: * yading@11: * Libav is distributed in the hope that it will be useful, yading@11: * but WITHOUT ANY WARRANTY; without even the implied warranty of yading@11: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU yading@11: * Lesser General Public License for more details. yading@11: * yading@11: * You should have received a copy of the GNU Lesser General Public yading@11: * License along with Libav; if not, write to the Free Software yading@11: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA yading@11: */ yading@11: yading@11: /** yading@11: * mov 'chan' tag reading/writing. yading@11: * @author Justin Ruggles yading@11: */ yading@11: yading@11: #include yading@11: yading@11: #include "libavutil/channel_layout.h" yading@11: #include "libavcodec/avcodec.h" yading@11: #include "mov_chan.h" yading@11: yading@11: /** yading@11: * Channel Layout Tag yading@11: * This tells which channels are present in the audio stream and the order in yading@11: * which they appear. yading@11: * yading@11: * @note We're using the channel layout tag to indicate channel order yading@11: * when the value is greater than 0x10000. The Apple documentation has yading@11: * some contradictions as to how this is actually supposed to be handled. yading@11: * yading@11: * Core Audio File Format Spec: yading@11: * "The high 16 bits indicates a specific ordering of the channels." yading@11: * Core Audio Data Types Reference: yading@11: * "These identifiers specify the channels included in a layout but yading@11: * do not specify a particular ordering of those channels." yading@11: */ yading@11: enum MovChannelLayoutTag { yading@11: MOV_CH_LAYOUT_UNKNOWN = 0xFFFF0000, yading@11: MOV_CH_LAYOUT_USE_DESCRIPTIONS = ( 0 << 16) | 0, yading@11: MOV_CH_LAYOUT_USE_BITMAP = ( 1 << 16) | 0, yading@11: MOV_CH_LAYOUT_DISCRETEINORDER = (147 << 16) | 0, yading@11: MOV_CH_LAYOUT_MONO = (100 << 16) | 1, yading@11: MOV_CH_LAYOUT_STEREO = (101 << 16) | 2, yading@11: MOV_CH_LAYOUT_STEREOHEADPHONES = (102 << 16) | 2, yading@11: MOV_CH_LAYOUT_MATRIXSTEREO = (103 << 16) | 2, yading@11: MOV_CH_LAYOUT_MIDSIDE = (104 << 16) | 2, yading@11: MOV_CH_LAYOUT_XY = (105 << 16) | 2, yading@11: MOV_CH_LAYOUT_BINAURAL = (106 << 16) | 2, yading@11: MOV_CH_LAYOUT_AMBISONIC_B_FORMAT = (107 << 16) | 4, yading@11: MOV_CH_LAYOUT_QUADRAPHONIC = (108 << 16) | 4, yading@11: MOV_CH_LAYOUT_PENTAGONAL = (109 << 16) | 5, yading@11: MOV_CH_LAYOUT_HEXAGONAL = (110 << 16) | 6, yading@11: MOV_CH_LAYOUT_OCTAGONAL = (111 << 16) | 8, yading@11: MOV_CH_LAYOUT_CUBE = (112 << 16) | 8, yading@11: MOV_CH_LAYOUT_MPEG_3_0_A = (113 << 16) | 3, yading@11: MOV_CH_LAYOUT_MPEG_3_0_B = (114 << 16) | 3, yading@11: MOV_CH_LAYOUT_MPEG_4_0_A = (115 << 16) | 4, yading@11: MOV_CH_LAYOUT_MPEG_4_0_B = (116 << 16) | 4, yading@11: MOV_CH_LAYOUT_MPEG_5_0_A = (117 << 16) | 5, yading@11: MOV_CH_LAYOUT_MPEG_5_0_B = (118 << 16) | 5, yading@11: MOV_CH_LAYOUT_MPEG_5_0_C = (119 << 16) | 5, yading@11: MOV_CH_LAYOUT_MPEG_5_0_D = (120 << 16) | 5, yading@11: MOV_CH_LAYOUT_MPEG_5_1_A = (121 << 16) | 6, yading@11: MOV_CH_LAYOUT_MPEG_5_1_B = (122 << 16) | 6, yading@11: MOV_CH_LAYOUT_MPEG_5_1_C = (123 << 16) | 6, yading@11: MOV_CH_LAYOUT_MPEG_5_1_D = (124 << 16) | 6, yading@11: MOV_CH_LAYOUT_MPEG_6_1_A = (125 << 16) | 7, yading@11: MOV_CH_LAYOUT_MPEG_7_1_A = (126 << 16) | 8, yading@11: MOV_CH_LAYOUT_MPEG_7_1_B = (127 << 16) | 8, yading@11: MOV_CH_LAYOUT_MPEG_7_1_C = (128 << 16) | 8, yading@11: MOV_CH_LAYOUT_EMAGIC_DEFAULT_7_1 = (129 << 16) | 8, yading@11: MOV_CH_LAYOUT_SMPTE_DTV = (130 << 16) | 8, yading@11: MOV_CH_LAYOUT_ITU_2_1 = (131 << 16) | 3, yading@11: MOV_CH_LAYOUT_ITU_2_2 = (132 << 16) | 4, yading@11: MOV_CH_LAYOUT_DVD_4 = (133 << 16) | 3, yading@11: MOV_CH_LAYOUT_DVD_5 = (134 << 16) | 4, yading@11: MOV_CH_LAYOUT_DVD_6 = (135 << 16) | 5, yading@11: MOV_CH_LAYOUT_DVD_10 = (136 << 16) | 4, yading@11: MOV_CH_LAYOUT_DVD_11 = (137 << 16) | 5, yading@11: MOV_CH_LAYOUT_DVD_18 = (138 << 16) | 5, yading@11: MOV_CH_LAYOUT_AUDIOUNIT_6_0 = (139 << 16) | 6, yading@11: MOV_CH_LAYOUT_AUDIOUNIT_7_0 = (140 << 16) | 7, yading@11: MOV_CH_LAYOUT_AUDIOUNIT_7_0_FRONT = (148 << 16) | 7, yading@11: MOV_CH_LAYOUT_AAC_6_0 = (141 << 16) | 6, yading@11: MOV_CH_LAYOUT_AAC_6_1 = (142 << 16) | 7, yading@11: MOV_CH_LAYOUT_AAC_7_0 = (143 << 16) | 7, yading@11: MOV_CH_LAYOUT_AAC_OCTAGONAL = (144 << 16) | 8, yading@11: MOV_CH_LAYOUT_TMH_10_2_STD = (145 << 16) | 16, yading@11: MOV_CH_LAYOUT_TMH_10_2_FULL = (146 << 16) | 21, yading@11: MOV_CH_LAYOUT_AC3_1_0_1 = (149 << 16) | 2, yading@11: MOV_CH_LAYOUT_AC3_3_0 = (150 << 16) | 3, yading@11: MOV_CH_LAYOUT_AC3_3_1 = (151 << 16) | 4, yading@11: MOV_CH_LAYOUT_AC3_3_0_1 = (152 << 16) | 4, yading@11: MOV_CH_LAYOUT_AC3_2_1_1 = (153 << 16) | 4, yading@11: MOV_CH_LAYOUT_AC3_3_1_1 = (154 << 16) | 5, yading@11: MOV_CH_LAYOUT_EAC3_6_0_A = (155 << 16) | 6, yading@11: MOV_CH_LAYOUT_EAC3_7_0_A = (156 << 16) | 7, yading@11: MOV_CH_LAYOUT_EAC3_6_1_A = (157 << 16) | 7, yading@11: MOV_CH_LAYOUT_EAC3_6_1_B = (158 << 16) | 7, yading@11: MOV_CH_LAYOUT_EAC3_6_1_C = (159 << 16) | 7, yading@11: MOV_CH_LAYOUT_EAC3_7_1_A = (160 << 16) | 8, yading@11: MOV_CH_LAYOUT_EAC3_7_1_B = (161 << 16) | 8, yading@11: MOV_CH_LAYOUT_EAC3_7_1_C = (162 << 16) | 8, yading@11: MOV_CH_LAYOUT_EAC3_7_1_D = (163 << 16) | 8, yading@11: MOV_CH_LAYOUT_EAC3_7_1_E = (164 << 16) | 8, yading@11: MOV_CH_LAYOUT_EAC3_7_1_F = (165 << 16) | 8, yading@11: MOV_CH_LAYOUT_EAC3_7_1_G = (166 << 16) | 8, yading@11: MOV_CH_LAYOUT_EAC3_7_1_H = (167 << 16) | 8, yading@11: MOV_CH_LAYOUT_DTS_3_1 = (168 << 16) | 4, yading@11: MOV_CH_LAYOUT_DTS_4_1 = (169 << 16) | 5, yading@11: MOV_CH_LAYOUT_DTS_6_0_A = (170 << 16) | 6, yading@11: MOV_CH_LAYOUT_DTS_6_0_B = (171 << 16) | 6, yading@11: MOV_CH_LAYOUT_DTS_6_0_C = (172 << 16) | 6, yading@11: MOV_CH_LAYOUT_DTS_6_1_A = (173 << 16) | 7, yading@11: MOV_CH_LAYOUT_DTS_6_1_B = (174 << 16) | 7, yading@11: MOV_CH_LAYOUT_DTS_6_1_C = (175 << 16) | 7, yading@11: MOV_CH_LAYOUT_DTS_6_1_D = (182 << 16) | 7, yading@11: MOV_CH_LAYOUT_DTS_7_0 = (176 << 16) | 7, yading@11: MOV_CH_LAYOUT_DTS_7_1 = (177 << 16) | 8, yading@11: MOV_CH_LAYOUT_DTS_8_0_A = (178 << 16) | 8, yading@11: MOV_CH_LAYOUT_DTS_8_0_B = (179 << 16) | 8, yading@11: MOV_CH_LAYOUT_DTS_8_1_A = (180 << 16) | 9, yading@11: MOV_CH_LAYOUT_DTS_8_1_B = (181 << 16) | 9, yading@11: }; yading@11: yading@11: struct MovChannelLayoutMap { yading@11: uint32_t tag; yading@11: uint64_t layout; yading@11: }; yading@11: yading@11: static const struct MovChannelLayoutMap mov_ch_layout_map_misc[] = { yading@11: { MOV_CH_LAYOUT_USE_DESCRIPTIONS, 0 }, yading@11: { MOV_CH_LAYOUT_USE_BITMAP, 0 }, yading@11: { MOV_CH_LAYOUT_DISCRETEINORDER, 0 }, yading@11: { MOV_CH_LAYOUT_UNKNOWN, 0 }, yading@11: { MOV_CH_LAYOUT_TMH_10_2_STD, 0 }, // L, R, C, Vhc, Lsd, Rsd, yading@11: // Ls, Rs, Vhl, Vhr, Lw, Rw, yading@11: // Csd, Cs, LFE1, LFE2 yading@11: { MOV_CH_LAYOUT_TMH_10_2_FULL, 0 }, // L, R, C, Vhc, Lsd, Rsd, yading@11: // Ls, Rs, Vhl, Vhr, Lw, Rw, yading@11: // Csd, Cs, LFE1, LFE2, Lc, Rc, yading@11: // HI, VI, Haptic yading@11: { 0, 0 }, yading@11: }; yading@11: yading@11: static const struct MovChannelLayoutMap mov_ch_layout_map_1ch[] = { yading@11: { MOV_CH_LAYOUT_MONO, AV_CH_LAYOUT_MONO }, // C yading@11: { 0, 0 }, yading@11: }; yading@11: yading@11: static const struct MovChannelLayoutMap mov_ch_layout_map_2ch[] = { yading@11: { MOV_CH_LAYOUT_STEREO, AV_CH_LAYOUT_STEREO }, // L, R yading@11: { MOV_CH_LAYOUT_STEREOHEADPHONES, AV_CH_LAYOUT_STEREO }, // L, R yading@11: { MOV_CH_LAYOUT_BINAURAL, AV_CH_LAYOUT_STEREO }, // L, R yading@11: { MOV_CH_LAYOUT_MIDSIDE, AV_CH_LAYOUT_STEREO }, // C, sides yading@11: { MOV_CH_LAYOUT_XY, AV_CH_LAYOUT_STEREO }, // X (left), Y (right) yading@11: yading@11: { MOV_CH_LAYOUT_MATRIXSTEREO, AV_CH_LAYOUT_STEREO_DOWNMIX }, // Lt, Rt yading@11: yading@11: { MOV_CH_LAYOUT_AC3_1_0_1, AV_CH_LAYOUT_MONO | // C, LFE yading@11: AV_CH_LOW_FREQUENCY }, yading@11: { 0, 0 }, yading@11: }; yading@11: yading@11: static const struct MovChannelLayoutMap mov_ch_layout_map_3ch[] = { yading@11: { MOV_CH_LAYOUT_MPEG_3_0_A, AV_CH_LAYOUT_SURROUND }, // L, R, C yading@11: { MOV_CH_LAYOUT_MPEG_3_0_B, AV_CH_LAYOUT_SURROUND }, // C, L, R yading@11: { MOV_CH_LAYOUT_AC3_3_0, AV_CH_LAYOUT_SURROUND }, // L, C, R yading@11: yading@11: { MOV_CH_LAYOUT_ITU_2_1, AV_CH_LAYOUT_2_1 }, // L, R, Cs yading@11: yading@11: { MOV_CH_LAYOUT_DVD_4, AV_CH_LAYOUT_2POINT1 }, // L, R, LFE yading@11: { 0, 0 }, yading@11: }; yading@11: yading@11: static const struct MovChannelLayoutMap mov_ch_layout_map_4ch[] = { yading@11: { MOV_CH_LAYOUT_AMBISONIC_B_FORMAT, 0 }, // W, X, Y, Z yading@11: yading@11: { MOV_CH_LAYOUT_QUADRAPHONIC, AV_CH_LAYOUT_QUAD }, // L, R, Rls, Rrs yading@11: yading@11: { MOV_CH_LAYOUT_MPEG_4_0_A, AV_CH_LAYOUT_4POINT0 }, // L, R, C, Cs yading@11: { MOV_CH_LAYOUT_MPEG_4_0_B, AV_CH_LAYOUT_4POINT0 }, // C, L, R, Cs yading@11: { MOV_CH_LAYOUT_AC3_3_1, AV_CH_LAYOUT_4POINT0 }, // L, C, R, Cs yading@11: yading@11: { MOV_CH_LAYOUT_ITU_2_2, AV_CH_LAYOUT_2_2 }, // L, R, Ls, Rs yading@11: yading@11: { MOV_CH_LAYOUT_DVD_5, AV_CH_LAYOUT_2_1 | // L, R, LFE, Cs yading@11: AV_CH_LOW_FREQUENCY }, yading@11: { MOV_CH_LAYOUT_AC3_2_1_1, AV_CH_LAYOUT_2_1 | // L, R, Cs, LFE yading@11: AV_CH_LOW_FREQUENCY }, yading@11: yading@11: { MOV_CH_LAYOUT_DVD_10, AV_CH_LAYOUT_3POINT1 }, // L, R, C, LFE yading@11: { MOV_CH_LAYOUT_AC3_3_0_1, AV_CH_LAYOUT_3POINT1 }, // L, C, R, LFE yading@11: { MOV_CH_LAYOUT_DTS_3_1, AV_CH_LAYOUT_3POINT1 }, // C, L, R, LFE yading@11: { 0, 0 }, yading@11: }; yading@11: yading@11: static const struct MovChannelLayoutMap mov_ch_layout_map_5ch[] = { yading@11: { MOV_CH_LAYOUT_PENTAGONAL, AV_CH_LAYOUT_5POINT0_BACK }, // L, R, Rls, Rrs, C yading@11: yading@11: { MOV_CH_LAYOUT_MPEG_5_0_A, AV_CH_LAYOUT_5POINT0 }, // L, R, C, Ls, Rs yading@11: { MOV_CH_LAYOUT_MPEG_5_0_B, AV_CH_LAYOUT_5POINT0 }, // L, R, Ls, Rs, C yading@11: { MOV_CH_LAYOUT_MPEG_5_0_C, AV_CH_LAYOUT_5POINT0 }, // L, C, R, Ls, Rs yading@11: { MOV_CH_LAYOUT_MPEG_5_0_D, AV_CH_LAYOUT_5POINT0 }, // C, L, R, Ls, Rs yading@11: yading@11: { MOV_CH_LAYOUT_DVD_6, AV_CH_LAYOUT_2_2 | // L, R, LFE, Ls, Rs yading@11: AV_CH_LOW_FREQUENCY }, yading@11: { MOV_CH_LAYOUT_DVD_18, AV_CH_LAYOUT_2_2 | // L, R, Ls, Rs, LFE yading@11: AV_CH_LOW_FREQUENCY }, yading@11: yading@11: { MOV_CH_LAYOUT_DVD_11, AV_CH_LAYOUT_4POINT1 }, // L, R, C, LFE, Cs yading@11: { MOV_CH_LAYOUT_AC3_3_1_1, AV_CH_LAYOUT_4POINT1 }, // L, C, R, Cs, LFE yading@11: { MOV_CH_LAYOUT_DTS_4_1, AV_CH_LAYOUT_4POINT1 }, // C, L, R, Cs, LFE yading@11: { 0, 0 }, yading@11: }; yading@11: yading@11: static const struct MovChannelLayoutMap mov_ch_layout_map_6ch[] = { yading@11: { MOV_CH_LAYOUT_HEXAGONAL, AV_CH_LAYOUT_HEXAGONAL }, // L, R, Rls, Rrs, C, Cs yading@11: { MOV_CH_LAYOUT_DTS_6_0_C, AV_CH_LAYOUT_HEXAGONAL }, // C, Cs, L, R, Rls, Rrs yading@11: yading@11: { MOV_CH_LAYOUT_MPEG_5_1_A, AV_CH_LAYOUT_5POINT1 }, // L, R, C, LFE, Ls, Rs yading@11: { MOV_CH_LAYOUT_MPEG_5_1_B, AV_CH_LAYOUT_5POINT1 }, // L, R, Ls, Rs, C, LFE yading@11: { MOV_CH_LAYOUT_MPEG_5_1_C, AV_CH_LAYOUT_5POINT1 }, // L, C, R, Ls, Rs, LFE yading@11: { MOV_CH_LAYOUT_MPEG_5_1_D, AV_CH_LAYOUT_5POINT1 }, // C, L, R, Ls, Rs, LFE yading@11: yading@11: { MOV_CH_LAYOUT_AUDIOUNIT_6_0, AV_CH_LAYOUT_6POINT0 }, // L, R, Ls, Rs, C, Cs yading@11: { MOV_CH_LAYOUT_AAC_6_0, AV_CH_LAYOUT_6POINT0 }, // C, L, R, Ls, Rs, Cs yading@11: { MOV_CH_LAYOUT_EAC3_6_0_A, AV_CH_LAYOUT_6POINT0 }, // L, C, R, Ls, Rs, Cs yading@11: yading@11: { MOV_CH_LAYOUT_DTS_6_0_A, AV_CH_LAYOUT_6POINT0_FRONT }, // Lc, Rc, L, R, Ls, Rs yading@11: yading@11: { MOV_CH_LAYOUT_DTS_6_0_B, AV_CH_LAYOUT_5POINT0_BACK | // C, L, R, Rls, Rrs, Ts yading@11: AV_CH_TOP_CENTER }, yading@11: { 0, 0 }, yading@11: }; yading@11: yading@11: static const struct MovChannelLayoutMap mov_ch_layout_map_7ch[] = { yading@11: { MOV_CH_LAYOUT_MPEG_6_1_A, AV_CH_LAYOUT_6POINT1 }, // L, R, C, LFE, Ls, Rs, Cs yading@11: { MOV_CH_LAYOUT_AAC_6_1, AV_CH_LAYOUT_6POINT1 }, // C, L, R, Ls, Rs, Cs, LFE yading@11: { MOV_CH_LAYOUT_EAC3_6_1_A, AV_CH_LAYOUT_6POINT1 }, // L, C, R, Ls, Rs, LFE, Cs yading@11: { MOV_CH_LAYOUT_DTS_6_1_D, AV_CH_LAYOUT_6POINT1 }, // C, L, R, Ls, Rs, LFE, Cs yading@11: yading@11: { MOV_CH_LAYOUT_AUDIOUNIT_7_0, AV_CH_LAYOUT_7POINT0 }, // L, R, Ls, Rs, C, Rls, Rrs yading@11: { MOV_CH_LAYOUT_AAC_7_0, AV_CH_LAYOUT_7POINT0 }, // C, L, R, Ls, Rs, Rls, Rrs yading@11: { MOV_CH_LAYOUT_EAC3_7_0_A, AV_CH_LAYOUT_7POINT0 }, // L, C, R, Ls, Rs, Rls, Rrs yading@11: yading@11: { MOV_CH_LAYOUT_AUDIOUNIT_7_0_FRONT, AV_CH_LAYOUT_7POINT0_FRONT }, // L, R, Ls, Rs, C, Lc, Rc yading@11: { MOV_CH_LAYOUT_DTS_7_0, AV_CH_LAYOUT_7POINT0_FRONT }, // Lc, C, Rc, L, R, Ls, Rs yading@11: yading@11: { MOV_CH_LAYOUT_EAC3_6_1_B, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Ts yading@11: AV_CH_TOP_CENTER }, yading@11: yading@11: { MOV_CH_LAYOUT_EAC3_6_1_C, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Vhc yading@11: AV_CH_TOP_FRONT_CENTER }, yading@11: yading@11: { MOV_CH_LAYOUT_DTS_6_1_A, AV_CH_LAYOUT_6POINT1_FRONT }, // Lc, Rc, L, R, Ls, Rs, LFE yading@11: yading@11: { MOV_CH_LAYOUT_DTS_6_1_B, AV_CH_LAYOUT_5POINT1_BACK | // C, L, R, Rls, Rrs, Ts, LFE yading@11: AV_CH_TOP_CENTER }, yading@11: yading@11: { MOV_CH_LAYOUT_DTS_6_1_C, AV_CH_LAYOUT_6POINT1_BACK }, // C, Cs, L, R, Rls, Rrs, LFE yading@11: { 0, 0 }, yading@11: }; yading@11: yading@11: static const struct MovChannelLayoutMap mov_ch_layout_map_8ch[] = { yading@11: { MOV_CH_LAYOUT_OCTAGONAL, AV_CH_LAYOUT_OCTAGONAL }, // L, R, Rls, Rrs, C, Cs, Ls, Rs yading@11: { MOV_CH_LAYOUT_AAC_OCTAGONAL, AV_CH_LAYOUT_OCTAGONAL }, // C, L, R, Ls, Rs, Rls, Rrs, Cs yading@11: yading@11: { MOV_CH_LAYOUT_CUBE, AV_CH_LAYOUT_QUAD | // L, R, Rls, Rrs, Vhl, Vhr, Rlt, Rrt yading@11: AV_CH_TOP_FRONT_LEFT | yading@11: AV_CH_TOP_FRONT_RIGHT | yading@11: AV_CH_TOP_BACK_LEFT | yading@11: AV_CH_TOP_BACK_RIGHT }, yading@11: yading@11: { MOV_CH_LAYOUT_MPEG_7_1_A, AV_CH_LAYOUT_7POINT1_WIDE }, // L, R, C, LFE, Ls, Rs, Lc, Rc yading@11: { MOV_CH_LAYOUT_MPEG_7_1_B, AV_CH_LAYOUT_7POINT1_WIDE }, // C, Lc, Rc, L, R, Ls, Rs, LFE yading@11: { MOV_CH_LAYOUT_EMAGIC_DEFAULT_7_1, AV_CH_LAYOUT_7POINT1_WIDE }, // L, R, Ls, Rs, C, LFE, Lc, Rc yading@11: { MOV_CH_LAYOUT_EAC3_7_1_B, AV_CH_LAYOUT_7POINT1_WIDE }, // L, C, R, Ls, Rs, LFE, Lc, Rc yading@11: { MOV_CH_LAYOUT_DTS_7_1, AV_CH_LAYOUT_7POINT1_WIDE }, // Lc, C, Rc, L, R, Ls, Rs, LFE yading@11: yading@11: { MOV_CH_LAYOUT_MPEG_7_1_C, AV_CH_LAYOUT_7POINT1 }, // L, R, C, LFE, Ls, Rs, Rls, Rrs yading@11: { MOV_CH_LAYOUT_EAC3_7_1_A, AV_CH_LAYOUT_7POINT1 }, // L, C, R, Ls, Rs, LFE, Rls, Rrs yading@11: yading@11: { MOV_CH_LAYOUT_SMPTE_DTV, AV_CH_LAYOUT_5POINT1 | // L, R, C, LFE, Ls, Rs, Lt, Rt yading@11: AV_CH_LAYOUT_STEREO_DOWNMIX }, yading@11: yading@11: { MOV_CH_LAYOUT_EAC3_7_1_C, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Lsd, Rsd yading@11: AV_CH_SURROUND_DIRECT_LEFT | yading@11: AV_CH_SURROUND_DIRECT_RIGHT }, yading@11: yading@11: { MOV_CH_LAYOUT_EAC3_7_1_D, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Lw, Rw yading@11: AV_CH_WIDE_LEFT | yading@11: AV_CH_WIDE_RIGHT }, yading@11: yading@11: { MOV_CH_LAYOUT_EAC3_7_1_E, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Vhl, Vhr yading@11: AV_CH_TOP_FRONT_LEFT | yading@11: AV_CH_TOP_FRONT_RIGHT }, yading@11: yading@11: { MOV_CH_LAYOUT_EAC3_7_1_F, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Cs, Ts yading@11: AV_CH_BACK_CENTER | yading@11: AV_CH_TOP_CENTER }, yading@11: yading@11: { MOV_CH_LAYOUT_EAC3_7_1_G, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Cs, Vhc yading@11: AV_CH_BACK_CENTER | yading@11: AV_CH_TOP_FRONT_CENTER }, yading@11: yading@11: { MOV_CH_LAYOUT_EAC3_7_1_H, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Ts, Vhc yading@11: AV_CH_TOP_CENTER | yading@11: AV_CH_TOP_FRONT_CENTER }, yading@11: yading@11: { MOV_CH_LAYOUT_DTS_8_0_A, AV_CH_LAYOUT_2_2 | // Lc, Rc, L, R, Ls, Rs, Rls, Rrs yading@11: AV_CH_BACK_LEFT | yading@11: AV_CH_BACK_RIGHT | yading@11: AV_CH_FRONT_LEFT_OF_CENTER | yading@11: AV_CH_FRONT_RIGHT_OF_CENTER }, yading@11: yading@11: { MOV_CH_LAYOUT_DTS_8_0_B, AV_CH_LAYOUT_5POINT0 | // Lc, C, Rc, L, R, Ls, Cs, Rs yading@11: AV_CH_FRONT_LEFT_OF_CENTER | yading@11: AV_CH_FRONT_RIGHT_OF_CENTER | yading@11: AV_CH_BACK_CENTER }, yading@11: { 0, 0 }, yading@11: }; yading@11: yading@11: static const struct MovChannelLayoutMap mov_ch_layout_map_9ch[] = { yading@11: { MOV_CH_LAYOUT_DTS_8_1_A, AV_CH_LAYOUT_2_2 | // Lc, Rc, L, R, Ls, Rs, Rls, Rrs, LFE yading@11: AV_CH_BACK_LEFT | yading@11: AV_CH_BACK_RIGHT | yading@11: AV_CH_FRONT_LEFT_OF_CENTER | yading@11: AV_CH_FRONT_RIGHT_OF_CENTER | yading@11: AV_CH_LOW_FREQUENCY }, yading@11: yading@11: { MOV_CH_LAYOUT_DTS_8_1_B, AV_CH_LAYOUT_7POINT1_WIDE | // Lc, C, Rc, L, R, Ls, Cs, Rs, LFE yading@11: AV_CH_BACK_CENTER }, yading@11: { 0, 0 }, yading@11: }; yading@11: yading@11: static const struct MovChannelLayoutMap *mov_ch_layout_map[] = { yading@11: mov_ch_layout_map_misc, yading@11: mov_ch_layout_map_1ch, yading@11: mov_ch_layout_map_2ch, yading@11: mov_ch_layout_map_3ch, yading@11: mov_ch_layout_map_4ch, yading@11: mov_ch_layout_map_5ch, yading@11: mov_ch_layout_map_6ch, yading@11: mov_ch_layout_map_7ch, yading@11: mov_ch_layout_map_8ch, yading@11: mov_ch_layout_map_9ch, yading@11: }; yading@11: yading@11: static const enum MovChannelLayoutTag mov_ch_layouts_aac[] = { yading@11: MOV_CH_LAYOUT_MONO, yading@11: MOV_CH_LAYOUT_STEREO, yading@11: MOV_CH_LAYOUT_AC3_1_0_1, yading@11: MOV_CH_LAYOUT_MPEG_3_0_B, yading@11: MOV_CH_LAYOUT_ITU_2_1, yading@11: MOV_CH_LAYOUT_DVD_4, yading@11: MOV_CH_LAYOUT_QUADRAPHONIC, yading@11: MOV_CH_LAYOUT_MPEG_4_0_B, yading@11: MOV_CH_LAYOUT_ITU_2_2, yading@11: MOV_CH_LAYOUT_AC3_2_1_1, yading@11: MOV_CH_LAYOUT_DTS_3_1, yading@11: MOV_CH_LAYOUT_MPEG_5_0_D, yading@11: MOV_CH_LAYOUT_DVD_18, yading@11: MOV_CH_LAYOUT_DTS_4_1, yading@11: MOV_CH_LAYOUT_MPEG_5_1_D, yading@11: MOV_CH_LAYOUT_AAC_6_0, yading@11: MOV_CH_LAYOUT_DTS_6_0_A, yading@11: MOV_CH_LAYOUT_AAC_6_1, yading@11: MOV_CH_LAYOUT_AAC_7_0, yading@11: MOV_CH_LAYOUT_DTS_6_1_A, yading@11: MOV_CH_LAYOUT_AAC_OCTAGONAL, yading@11: MOV_CH_LAYOUT_MPEG_7_1_B, yading@11: MOV_CH_LAYOUT_DTS_8_0_A, yading@11: 0, yading@11: }; yading@11: yading@11: static const enum MovChannelLayoutTag mov_ch_layouts_ac3[] = { yading@11: MOV_CH_LAYOUT_MONO, yading@11: MOV_CH_LAYOUT_STEREO, yading@11: MOV_CH_LAYOUT_AC3_1_0_1, yading@11: MOV_CH_LAYOUT_AC3_3_0, yading@11: MOV_CH_LAYOUT_ITU_2_1, yading@11: MOV_CH_LAYOUT_DVD_4, yading@11: MOV_CH_LAYOUT_AC3_3_1, yading@11: MOV_CH_LAYOUT_ITU_2_2, yading@11: MOV_CH_LAYOUT_AC3_2_1_1, yading@11: MOV_CH_LAYOUT_AC3_3_0_1, yading@11: MOV_CH_LAYOUT_MPEG_5_0_C, yading@11: MOV_CH_LAYOUT_DVD_18, yading@11: MOV_CH_LAYOUT_AC3_3_1_1, yading@11: MOV_CH_LAYOUT_MPEG_5_1_C, yading@11: 0, yading@11: }; yading@11: yading@11: static const enum MovChannelLayoutTag mov_ch_layouts_alac[] = { yading@11: MOV_CH_LAYOUT_MONO, yading@11: MOV_CH_LAYOUT_STEREO, yading@11: MOV_CH_LAYOUT_MPEG_3_0_B, yading@11: MOV_CH_LAYOUT_MPEG_4_0_B, yading@11: MOV_CH_LAYOUT_MPEG_5_0_D, yading@11: MOV_CH_LAYOUT_MPEG_5_1_D, yading@11: MOV_CH_LAYOUT_AAC_6_1, yading@11: MOV_CH_LAYOUT_MPEG_7_1_B, yading@11: 0, yading@11: }; yading@11: yading@11: static const enum MovChannelLayoutTag mov_ch_layouts_wav[] = { yading@11: MOV_CH_LAYOUT_MONO, yading@11: MOV_CH_LAYOUT_STEREO, yading@11: MOV_CH_LAYOUT_MATRIXSTEREO, yading@11: MOV_CH_LAYOUT_MPEG_3_0_A, yading@11: MOV_CH_LAYOUT_QUADRAPHONIC, yading@11: MOV_CH_LAYOUT_MPEG_5_0_A, yading@11: MOV_CH_LAYOUT_MPEG_5_1_A, yading@11: MOV_CH_LAYOUT_MPEG_6_1_A, yading@11: MOV_CH_LAYOUT_MPEG_7_1_A, yading@11: MOV_CH_LAYOUT_MPEG_7_1_C, yading@11: MOV_CH_LAYOUT_SMPTE_DTV, yading@11: 0, yading@11: }; yading@11: yading@11: static const struct { yading@11: enum AVCodecID codec_id; yading@11: const enum MovChannelLayoutTag *layouts; yading@11: } mov_codec_ch_layouts[] = { yading@11: { AV_CODEC_ID_AAC, mov_ch_layouts_aac }, yading@11: { AV_CODEC_ID_AC3, mov_ch_layouts_ac3 }, yading@11: { AV_CODEC_ID_ALAC, mov_ch_layouts_alac }, yading@11: { AV_CODEC_ID_PCM_U8, mov_ch_layouts_wav }, yading@11: { AV_CODEC_ID_PCM_S8, mov_ch_layouts_wav }, yading@11: { AV_CODEC_ID_PCM_S16LE, mov_ch_layouts_wav }, yading@11: { AV_CODEC_ID_PCM_S16BE, mov_ch_layouts_wav }, yading@11: { AV_CODEC_ID_PCM_S24LE, mov_ch_layouts_wav }, yading@11: { AV_CODEC_ID_PCM_S24BE, mov_ch_layouts_wav }, yading@11: { AV_CODEC_ID_PCM_S32LE, mov_ch_layouts_wav }, yading@11: { AV_CODEC_ID_PCM_S32BE, mov_ch_layouts_wav }, yading@11: { AV_CODEC_ID_PCM_F32LE, mov_ch_layouts_wav }, yading@11: { AV_CODEC_ID_PCM_F32BE, mov_ch_layouts_wav }, yading@11: { AV_CODEC_ID_PCM_F64LE, mov_ch_layouts_wav }, yading@11: { AV_CODEC_ID_PCM_F64BE, mov_ch_layouts_wav }, yading@11: { AV_CODEC_ID_NONE, NULL }, yading@11: }; yading@11: yading@11: uint64_t ff_mov_get_channel_layout(uint32_t tag, uint32_t bitmap) yading@11: { yading@11: int i, channels; yading@11: const struct MovChannelLayoutMap *layout_map; yading@11: yading@11: /* use ff_mov_get_channel_label() to build a layout instead */ yading@11: if (tag == MOV_CH_LAYOUT_USE_DESCRIPTIONS) yading@11: return 0; yading@11: yading@11: /* handle the use of the channel bitmap */ yading@11: if (tag == MOV_CH_LAYOUT_USE_BITMAP) yading@11: return bitmap < 0x40000 ? bitmap : 0; yading@11: yading@11: /* get the layout map based on the channel count for the specified layout tag */ yading@11: channels = tag & 0xFFFF; yading@11: if (channels > 9) yading@11: channels = 0; yading@11: layout_map = mov_ch_layout_map[channels]; yading@11: yading@11: /* find the channel layout for the specified layout tag */ yading@11: for (i = 0; layout_map[i].tag != 0; i++) { yading@11: if (layout_map[i].tag == tag) yading@11: break; yading@11: } yading@11: return layout_map[i].layout; yading@11: } yading@11: yading@11: static uint32_t mov_get_channel_label(uint32_t label) yading@11: { yading@11: if (label == 0) yading@11: return 0; yading@11: if (label <= 18) yading@11: return 1U << (label - 1); yading@11: if (label == 38) yading@11: return AV_CH_STEREO_LEFT; yading@11: if (label == 39) yading@11: return AV_CH_STEREO_RIGHT; yading@11: return 0; yading@11: } yading@11: yading@11: uint32_t ff_mov_get_channel_layout_tag(enum AVCodecID codec_id, yading@11: uint64_t channel_layout, yading@11: uint32_t *bitmap) yading@11: { yading@11: int i, j; yading@11: uint32_t tag = 0; yading@11: const enum MovChannelLayoutTag *layouts = NULL; yading@11: yading@11: /* find the layout list for the specified codec */ yading@11: for (i = 0; mov_codec_ch_layouts[i].codec_id != AV_CODEC_ID_NONE; i++) { yading@11: if (mov_codec_ch_layouts[i].codec_id == codec_id) yading@11: break; yading@11: } yading@11: if (mov_codec_ch_layouts[i].codec_id != AV_CODEC_ID_NONE) yading@11: layouts = mov_codec_ch_layouts[i].layouts; yading@11: yading@11: if (layouts) { yading@11: int channels; yading@11: const struct MovChannelLayoutMap *layout_map; yading@11: yading@11: /* get the layout map based on the channel count */ yading@11: channels = av_get_channel_layout_nb_channels(channel_layout); yading@11: if (channels > 9) yading@11: channels = 0; yading@11: layout_map = mov_ch_layout_map[channels]; yading@11: yading@11: /* find the layout tag for the specified channel layout */ yading@11: for (i = 0; layouts[i] != 0; i++) { yading@11: if ((layouts[i] & 0xFFFF) != channels) yading@11: continue; yading@11: for (j = 0; layout_map[j].tag != 0; j++) { yading@11: if (layout_map[j].tag == layouts[i] && yading@11: layout_map[j].layout == channel_layout) yading@11: break; yading@11: } yading@11: if (layout_map[j].tag) yading@11: break; yading@11: } yading@11: tag = layouts[i]; yading@11: } yading@11: yading@11: /* if no tag was found, use channel bitmap as a backup if possible */ yading@11: if (tag == 0 && channel_layout > 0 && channel_layout < 0x40000) { yading@11: tag = MOV_CH_LAYOUT_USE_BITMAP; yading@11: *bitmap = (uint32_t)channel_layout; yading@11: } else yading@11: *bitmap = 0; yading@11: yading@11: /* TODO: set channel descriptions as a secondary backup */ yading@11: yading@11: return tag; yading@11: } yading@11: yading@11: int ff_mov_read_chan(AVFormatContext *s, AVIOContext *pb, AVStream *st, yading@11: int64_t size) yading@11: { yading@11: uint32_t layout_tag, bitmap, num_descr, label_mask; yading@11: int i; yading@11: yading@11: if (size < 12) yading@11: return AVERROR_INVALIDDATA; yading@11: yading@11: layout_tag = avio_rb32(pb); yading@11: bitmap = avio_rb32(pb); yading@11: num_descr = avio_rb32(pb); yading@11: yading@11: av_dlog(s, "chan: layout=%u bitmap=%u num_descr=%u\n", yading@11: layout_tag, bitmap, num_descr); yading@11: yading@11: if (size < 12ULL + num_descr * 20ULL) yading@11: return 0; yading@11: yading@11: label_mask = 0; yading@11: for (i = 0; i < num_descr; i++) { yading@11: uint32_t label; yading@11: label = avio_rb32(pb); // mChannelLabel yading@11: avio_rb32(pb); // mChannelFlags yading@11: avio_rl32(pb); // mCoordinates[0] yading@11: avio_rl32(pb); // mCoordinates[1] yading@11: avio_rl32(pb); // mCoordinates[2] yading@11: size -= 20; yading@11: if (layout_tag == 0) { yading@11: uint32_t mask_incr = mov_get_channel_label(label); yading@11: if (mask_incr == 0) { yading@11: label_mask = 0; yading@11: break; yading@11: } yading@11: label_mask |= mask_incr; yading@11: } yading@11: } yading@11: if (layout_tag == 0) { yading@11: if (label_mask) yading@11: st->codec->channel_layout = label_mask; yading@11: } else yading@11: st->codec->channel_layout = ff_mov_get_channel_layout(layout_tag, bitmap); yading@11: avio_skip(pb, size - 12); yading@11: yading@11: return 0; yading@11: }