diff options
Diffstat (limited to 'ffmpeg/libavformat/mov_chan.c')
| -rw-r--r-- | ffmpeg/libavformat/mov_chan.c | 592 |
1 files changed, 0 insertions, 592 deletions
diff --git a/ffmpeg/libavformat/mov_chan.c b/ffmpeg/libavformat/mov_chan.c deleted file mode 100644 index e7b5221..0000000 --- a/ffmpeg/libavformat/mov_chan.c +++ /dev/null @@ -1,592 +0,0 @@ -/* - * Copyright (c) 2011 Justin Ruggles - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -/** - * mov 'chan' tag reading/writing. - * @author Justin Ruggles - */ - -#include <stdint.h> - -#include "libavutil/channel_layout.h" -#include "libavcodec/avcodec.h" -#include "mov_chan.h" - -/** - * Channel Layout Tag - * This tells which channels are present in the audio stream and the order in - * which they appear. - * - * @note We're using the channel layout tag to indicate channel order - * when the value is greater than 0x10000. The Apple documentation has - * some contradictions as to how this is actually supposed to be handled. - * - * Core Audio File Format Spec: - * "The high 16 bits indicates a specific ordering of the channels." - * Core Audio Data Types Reference: - * "These identifiers specify the channels included in a layout but - * do not specify a particular ordering of those channels." - */ -enum MovChannelLayoutTag { - MOV_CH_LAYOUT_UNKNOWN = 0xFFFF0000, - MOV_CH_LAYOUT_USE_DESCRIPTIONS = ( 0 << 16) | 0, - MOV_CH_LAYOUT_USE_BITMAP = ( 1 << 16) | 0, - MOV_CH_LAYOUT_DISCRETEINORDER = (147 << 16) | 0, - MOV_CH_LAYOUT_MONO = (100 << 16) | 1, - MOV_CH_LAYOUT_STEREO = (101 << 16) | 2, - MOV_CH_LAYOUT_STEREOHEADPHONES = (102 << 16) | 2, - MOV_CH_LAYOUT_MATRIXSTEREO = (103 << 16) | 2, - MOV_CH_LAYOUT_MIDSIDE = (104 << 16) | 2, - MOV_CH_LAYOUT_XY = (105 << 16) | 2, - MOV_CH_LAYOUT_BINAURAL = (106 << 16) | 2, - MOV_CH_LAYOUT_AMBISONIC_B_FORMAT = (107 << 16) | 4, - MOV_CH_LAYOUT_QUADRAPHONIC = (108 << 16) | 4, - MOV_CH_LAYOUT_PENTAGONAL = (109 << 16) | 5, - MOV_CH_LAYOUT_HEXAGONAL = (110 << 16) | 6, - MOV_CH_LAYOUT_OCTAGONAL = (111 << 16) | 8, - MOV_CH_LAYOUT_CUBE = (112 << 16) | 8, - MOV_CH_LAYOUT_MPEG_3_0_A = (113 << 16) | 3, - MOV_CH_LAYOUT_MPEG_3_0_B = (114 << 16) | 3, - MOV_CH_LAYOUT_MPEG_4_0_A = (115 << 16) | 4, - MOV_CH_LAYOUT_MPEG_4_0_B = (116 << 16) | 4, - MOV_CH_LAYOUT_MPEG_5_0_A = (117 << 16) | 5, - MOV_CH_LAYOUT_MPEG_5_0_B = (118 << 16) | 5, - MOV_CH_LAYOUT_MPEG_5_0_C = (119 << 16) | 5, - MOV_CH_LAYOUT_MPEG_5_0_D = (120 << 16) | 5, - MOV_CH_LAYOUT_MPEG_5_1_A = (121 << 16) | 6, - MOV_CH_LAYOUT_MPEG_5_1_B = (122 << 16) | 6, - MOV_CH_LAYOUT_MPEG_5_1_C = (123 << 16) | 6, - MOV_CH_LAYOUT_MPEG_5_1_D = (124 << 16) | 6, - MOV_CH_LAYOUT_MPEG_6_1_A = (125 << 16) | 7, - MOV_CH_LAYOUT_MPEG_7_1_A = (126 << 16) | 8, - MOV_CH_LAYOUT_MPEG_7_1_B = (127 << 16) | 8, - MOV_CH_LAYOUT_MPEG_7_1_C = (128 << 16) | 8, - MOV_CH_LAYOUT_EMAGIC_DEFAULT_7_1 = (129 << 16) | 8, - MOV_CH_LAYOUT_SMPTE_DTV = (130 << 16) | 8, - MOV_CH_LAYOUT_ITU_2_1 = (131 << 16) | 3, - MOV_CH_LAYOUT_ITU_2_2 = (132 << 16) | 4, - MOV_CH_LAYOUT_DVD_4 = (133 << 16) | 3, - MOV_CH_LAYOUT_DVD_5 = (134 << 16) | 4, - MOV_CH_LAYOUT_DVD_6 = (135 << 16) | 5, - MOV_CH_LAYOUT_DVD_10 = (136 << 16) | 4, - MOV_CH_LAYOUT_DVD_11 = (137 << 16) | 5, - MOV_CH_LAYOUT_DVD_18 = (138 << 16) | 5, - MOV_CH_LAYOUT_AUDIOUNIT_6_0 = (139 << 16) | 6, - MOV_CH_LAYOUT_AUDIOUNIT_7_0 = (140 << 16) | 7, - MOV_CH_LAYOUT_AUDIOUNIT_7_0_FRONT = (148 << 16) | 7, - MOV_CH_LAYOUT_AAC_6_0 = (141 << 16) | 6, - MOV_CH_LAYOUT_AAC_6_1 = (142 << 16) | 7, - MOV_CH_LAYOUT_AAC_7_0 = (143 << 16) | 7, - MOV_CH_LAYOUT_AAC_OCTAGONAL = (144 << 16) | 8, - MOV_CH_LAYOUT_TMH_10_2_STD = (145 << 16) | 16, - MOV_CH_LAYOUT_TMH_10_2_FULL = (146 << 16) | 21, - MOV_CH_LAYOUT_AC3_1_0_1 = (149 << 16) | 2, - MOV_CH_LAYOUT_AC3_3_0 = (150 << 16) | 3, - MOV_CH_LAYOUT_AC3_3_1 = (151 << 16) | 4, - MOV_CH_LAYOUT_AC3_3_0_1 = (152 << 16) | 4, - MOV_CH_LAYOUT_AC3_2_1_1 = (153 << 16) | 4, - MOV_CH_LAYOUT_AC3_3_1_1 = (154 << 16) | 5, - MOV_CH_LAYOUT_EAC3_6_0_A = (155 << 16) | 6, - MOV_CH_LAYOUT_EAC3_7_0_A = (156 << 16) | 7, - MOV_CH_LAYOUT_EAC3_6_1_A = (157 << 16) | 7, - MOV_CH_LAYOUT_EAC3_6_1_B = (158 << 16) | 7, - MOV_CH_LAYOUT_EAC3_6_1_C = (159 << 16) | 7, - MOV_CH_LAYOUT_EAC3_7_1_A = (160 << 16) | 8, - MOV_CH_LAYOUT_EAC3_7_1_B = (161 << 16) | 8, - MOV_CH_LAYOUT_EAC3_7_1_C = (162 << 16) | 8, - MOV_CH_LAYOUT_EAC3_7_1_D = (163 << 16) | 8, - MOV_CH_LAYOUT_EAC3_7_1_E = (164 << 16) | 8, - MOV_CH_LAYOUT_EAC3_7_1_F = (165 << 16) | 8, - MOV_CH_LAYOUT_EAC3_7_1_G = (166 << 16) | 8, - MOV_CH_LAYOUT_EAC3_7_1_H = (167 << 16) | 8, - MOV_CH_LAYOUT_DTS_3_1 = (168 << 16) | 4, - MOV_CH_LAYOUT_DTS_4_1 = (169 << 16) | 5, - MOV_CH_LAYOUT_DTS_6_0_A = (170 << 16) | 6, - MOV_CH_LAYOUT_DTS_6_0_B = (171 << 16) | 6, - MOV_CH_LAYOUT_DTS_6_0_C = (172 << 16) | 6, - MOV_CH_LAYOUT_DTS_6_1_A = (173 << 16) | 7, - MOV_CH_LAYOUT_DTS_6_1_B = (174 << 16) | 7, - MOV_CH_LAYOUT_DTS_6_1_C = (175 << 16) | 7, - MOV_CH_LAYOUT_DTS_6_1_D = (182 << 16) | 7, - MOV_CH_LAYOUT_DTS_7_0 = (176 << 16) | 7, - MOV_CH_LAYOUT_DTS_7_1 = (177 << 16) | 8, - MOV_CH_LAYOUT_DTS_8_0_A = (178 << 16) | 8, - MOV_CH_LAYOUT_DTS_8_0_B = (179 << 16) | 8, - MOV_CH_LAYOUT_DTS_8_1_A = (180 << 16) | 9, - MOV_CH_LAYOUT_DTS_8_1_B = (181 << 16) | 9, -}; - -struct MovChannelLayoutMap { - uint32_t tag; - uint64_t layout; -}; - -static const struct MovChannelLayoutMap mov_ch_layout_map_misc[] = { - { MOV_CH_LAYOUT_USE_DESCRIPTIONS, 0 }, - { MOV_CH_LAYOUT_USE_BITMAP, 0 }, - { MOV_CH_LAYOUT_DISCRETEINORDER, 0 }, - { MOV_CH_LAYOUT_UNKNOWN, 0 }, - { MOV_CH_LAYOUT_TMH_10_2_STD, 0 }, // L, R, C, Vhc, Lsd, Rsd, - // Ls, Rs, Vhl, Vhr, Lw, Rw, - // Csd, Cs, LFE1, LFE2 - { MOV_CH_LAYOUT_TMH_10_2_FULL, 0 }, // L, R, C, Vhc, Lsd, Rsd, - // Ls, Rs, Vhl, Vhr, Lw, Rw, - // Csd, Cs, LFE1, LFE2, Lc, Rc, - // HI, VI, Haptic - { 0, 0 }, -}; - -static const struct MovChannelLayoutMap mov_ch_layout_map_1ch[] = { - { MOV_CH_LAYOUT_MONO, AV_CH_LAYOUT_MONO }, // C - { 0, 0 }, -}; - -static const struct MovChannelLayoutMap mov_ch_layout_map_2ch[] = { - { MOV_CH_LAYOUT_STEREO, AV_CH_LAYOUT_STEREO }, // L, R - { MOV_CH_LAYOUT_STEREOHEADPHONES, AV_CH_LAYOUT_STEREO }, // L, R - { MOV_CH_LAYOUT_BINAURAL, AV_CH_LAYOUT_STEREO }, // L, R - { MOV_CH_LAYOUT_MIDSIDE, AV_CH_LAYOUT_STEREO }, // C, sides - { MOV_CH_LAYOUT_XY, AV_CH_LAYOUT_STEREO }, // X (left), Y (right) - - { MOV_CH_LAYOUT_MATRIXSTEREO, AV_CH_LAYOUT_STEREO_DOWNMIX }, // Lt, Rt - - { MOV_CH_LAYOUT_AC3_1_0_1, AV_CH_LAYOUT_MONO | // C, LFE - AV_CH_LOW_FREQUENCY }, - { 0, 0 }, -}; - -static const struct MovChannelLayoutMap mov_ch_layout_map_3ch[] = { - { MOV_CH_LAYOUT_MPEG_3_0_A, AV_CH_LAYOUT_SURROUND }, // L, R, C - { MOV_CH_LAYOUT_MPEG_3_0_B, AV_CH_LAYOUT_SURROUND }, // C, L, R - { MOV_CH_LAYOUT_AC3_3_0, AV_CH_LAYOUT_SURROUND }, // L, C, R - - { MOV_CH_LAYOUT_ITU_2_1, AV_CH_LAYOUT_2_1 }, // L, R, Cs - - { MOV_CH_LAYOUT_DVD_4, AV_CH_LAYOUT_2POINT1 }, // L, R, LFE - { 0, 0 }, -}; - -static const struct MovChannelLayoutMap mov_ch_layout_map_4ch[] = { - { MOV_CH_LAYOUT_AMBISONIC_B_FORMAT, 0 }, // W, X, Y, Z - - { MOV_CH_LAYOUT_QUADRAPHONIC, AV_CH_LAYOUT_QUAD }, // L, R, Rls, Rrs - - { MOV_CH_LAYOUT_MPEG_4_0_A, AV_CH_LAYOUT_4POINT0 }, // L, R, C, Cs - { MOV_CH_LAYOUT_MPEG_4_0_B, AV_CH_LAYOUT_4POINT0 }, // C, L, R, Cs - { MOV_CH_LAYOUT_AC3_3_1, AV_CH_LAYOUT_4POINT0 }, // L, C, R, Cs - - { MOV_CH_LAYOUT_ITU_2_2, AV_CH_LAYOUT_2_2 }, // L, R, Ls, Rs - - { MOV_CH_LAYOUT_DVD_5, AV_CH_LAYOUT_2_1 | // L, R, LFE, Cs - AV_CH_LOW_FREQUENCY }, - { MOV_CH_LAYOUT_AC3_2_1_1, AV_CH_LAYOUT_2_1 | // L, R, Cs, LFE - AV_CH_LOW_FREQUENCY }, - - { MOV_CH_LAYOUT_DVD_10, AV_CH_LAYOUT_3POINT1 }, // L, R, C, LFE - { MOV_CH_LAYOUT_AC3_3_0_1, AV_CH_LAYOUT_3POINT1 }, // L, C, R, LFE - { MOV_CH_LAYOUT_DTS_3_1, AV_CH_LAYOUT_3POINT1 }, // C, L, R, LFE - { 0, 0 }, -}; - -static const struct MovChannelLayoutMap mov_ch_layout_map_5ch[] = { - { MOV_CH_LAYOUT_PENTAGONAL, AV_CH_LAYOUT_5POINT0_BACK }, // L, R, Rls, Rrs, C - - { MOV_CH_LAYOUT_MPEG_5_0_A, AV_CH_LAYOUT_5POINT0 }, // L, R, C, Ls, Rs - { MOV_CH_LAYOUT_MPEG_5_0_B, AV_CH_LAYOUT_5POINT0 }, // L, R, Ls, Rs, C - { MOV_CH_LAYOUT_MPEG_5_0_C, AV_CH_LAYOUT_5POINT0 }, // L, C, R, Ls, Rs - { MOV_CH_LAYOUT_MPEG_5_0_D, AV_CH_LAYOUT_5POINT0 }, // C, L, R, Ls, Rs - - { MOV_CH_LAYOUT_DVD_6, AV_CH_LAYOUT_2_2 | // L, R, LFE, Ls, Rs - AV_CH_LOW_FREQUENCY }, - { MOV_CH_LAYOUT_DVD_18, AV_CH_LAYOUT_2_2 | // L, R, Ls, Rs, LFE - AV_CH_LOW_FREQUENCY }, - - { MOV_CH_LAYOUT_DVD_11, AV_CH_LAYOUT_4POINT1 }, // L, R, C, LFE, Cs - { MOV_CH_LAYOUT_AC3_3_1_1, AV_CH_LAYOUT_4POINT1 }, // L, C, R, Cs, LFE - { MOV_CH_LAYOUT_DTS_4_1, AV_CH_LAYOUT_4POINT1 }, // C, L, R, Cs, LFE - { 0, 0 }, -}; - -static const struct MovChannelLayoutMap mov_ch_layout_map_6ch[] = { - { MOV_CH_LAYOUT_HEXAGONAL, AV_CH_LAYOUT_HEXAGONAL }, // L, R, Rls, Rrs, C, Cs - { MOV_CH_LAYOUT_DTS_6_0_C, AV_CH_LAYOUT_HEXAGONAL }, // C, Cs, L, R, Rls, Rrs - - { MOV_CH_LAYOUT_MPEG_5_1_A, AV_CH_LAYOUT_5POINT1 }, // L, R, C, LFE, Ls, Rs - { MOV_CH_LAYOUT_MPEG_5_1_B, AV_CH_LAYOUT_5POINT1 }, // L, R, Ls, Rs, C, LFE - { MOV_CH_LAYOUT_MPEG_5_1_C, AV_CH_LAYOUT_5POINT1 }, // L, C, R, Ls, Rs, LFE - { MOV_CH_LAYOUT_MPEG_5_1_D, AV_CH_LAYOUT_5POINT1 }, // C, L, R, Ls, Rs, LFE - - { MOV_CH_LAYOUT_AUDIOUNIT_6_0, AV_CH_LAYOUT_6POINT0 }, // L, R, Ls, Rs, C, Cs - { MOV_CH_LAYOUT_AAC_6_0, AV_CH_LAYOUT_6POINT0 }, // C, L, R, Ls, Rs, Cs - { MOV_CH_LAYOUT_EAC3_6_0_A, AV_CH_LAYOUT_6POINT0 }, // L, C, R, Ls, Rs, Cs - - { MOV_CH_LAYOUT_DTS_6_0_A, AV_CH_LAYOUT_6POINT0_FRONT }, // Lc, Rc, L, R, Ls, Rs - - { MOV_CH_LAYOUT_DTS_6_0_B, AV_CH_LAYOUT_5POINT0_BACK | // C, L, R, Rls, Rrs, Ts - AV_CH_TOP_CENTER }, - { 0, 0 }, -}; - -static const struct MovChannelLayoutMap mov_ch_layout_map_7ch[] = { - { MOV_CH_LAYOUT_MPEG_6_1_A, AV_CH_LAYOUT_6POINT1 }, // L, R, C, LFE, Ls, Rs, Cs - { MOV_CH_LAYOUT_AAC_6_1, AV_CH_LAYOUT_6POINT1 }, // C, L, R, Ls, Rs, Cs, LFE - { MOV_CH_LAYOUT_EAC3_6_1_A, AV_CH_LAYOUT_6POINT1 }, // L, C, R, Ls, Rs, LFE, Cs - { MOV_CH_LAYOUT_DTS_6_1_D, AV_CH_LAYOUT_6POINT1 }, // C, L, R, Ls, Rs, LFE, Cs - - { MOV_CH_LAYOUT_AUDIOUNIT_7_0, AV_CH_LAYOUT_7POINT0 }, // L, R, Ls, Rs, C, Rls, Rrs - { MOV_CH_LAYOUT_AAC_7_0, AV_CH_LAYOUT_7POINT0 }, // C, L, R, Ls, Rs, Rls, Rrs - { MOV_CH_LAYOUT_EAC3_7_0_A, AV_CH_LAYOUT_7POINT0 }, // L, C, R, Ls, Rs, Rls, Rrs - - { MOV_CH_LAYOUT_AUDIOUNIT_7_0_FRONT, AV_CH_LAYOUT_7POINT0_FRONT }, // L, R, Ls, Rs, C, Lc, Rc - { MOV_CH_LAYOUT_DTS_7_0, AV_CH_LAYOUT_7POINT0_FRONT }, // Lc, C, Rc, L, R, Ls, Rs - - { MOV_CH_LAYOUT_EAC3_6_1_B, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Ts - AV_CH_TOP_CENTER }, - - { MOV_CH_LAYOUT_EAC3_6_1_C, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Vhc - AV_CH_TOP_FRONT_CENTER }, - - { MOV_CH_LAYOUT_DTS_6_1_A, AV_CH_LAYOUT_6POINT1_FRONT }, // Lc, Rc, L, R, Ls, Rs, LFE - - { MOV_CH_LAYOUT_DTS_6_1_B, AV_CH_LAYOUT_5POINT1_BACK | // C, L, R, Rls, Rrs, Ts, LFE - AV_CH_TOP_CENTER }, - - { MOV_CH_LAYOUT_DTS_6_1_C, AV_CH_LAYOUT_6POINT1_BACK }, // C, Cs, L, R, Rls, Rrs, LFE - { 0, 0 }, -}; - -static const struct MovChannelLayoutMap mov_ch_layout_map_8ch[] = { - { MOV_CH_LAYOUT_OCTAGONAL, AV_CH_LAYOUT_OCTAGONAL }, // L, R, Rls, Rrs, C, Cs, Ls, Rs - { MOV_CH_LAYOUT_AAC_OCTAGONAL, AV_CH_LAYOUT_OCTAGONAL }, // C, L, R, Ls, Rs, Rls, Rrs, Cs - - { MOV_CH_LAYOUT_CUBE, AV_CH_LAYOUT_QUAD | // L, R, Rls, Rrs, Vhl, Vhr, Rlt, Rrt - AV_CH_TOP_FRONT_LEFT | - AV_CH_TOP_FRONT_RIGHT | - AV_CH_TOP_BACK_LEFT | - AV_CH_TOP_BACK_RIGHT }, - - { MOV_CH_LAYOUT_MPEG_7_1_A, AV_CH_LAYOUT_7POINT1_WIDE }, // L, R, C, LFE, Ls, Rs, Lc, Rc - { MOV_CH_LAYOUT_MPEG_7_1_B, AV_CH_LAYOUT_7POINT1_WIDE }, // C, Lc, Rc, L, R, Ls, Rs, LFE - { MOV_CH_LAYOUT_EMAGIC_DEFAULT_7_1, AV_CH_LAYOUT_7POINT1_WIDE }, // L, R, Ls, Rs, C, LFE, Lc, Rc - { MOV_CH_LAYOUT_EAC3_7_1_B, AV_CH_LAYOUT_7POINT1_WIDE }, // L, C, R, Ls, Rs, LFE, Lc, Rc - { MOV_CH_LAYOUT_DTS_7_1, AV_CH_LAYOUT_7POINT1_WIDE }, // Lc, C, Rc, L, R, Ls, Rs, LFE - - { MOV_CH_LAYOUT_MPEG_7_1_C, AV_CH_LAYOUT_7POINT1 }, // L, R, C, LFE, Ls, Rs, Rls, Rrs - { MOV_CH_LAYOUT_EAC3_7_1_A, AV_CH_LAYOUT_7POINT1 }, // L, C, R, Ls, Rs, LFE, Rls, Rrs - - { MOV_CH_LAYOUT_SMPTE_DTV, AV_CH_LAYOUT_5POINT1 | // L, R, C, LFE, Ls, Rs, Lt, Rt - AV_CH_LAYOUT_STEREO_DOWNMIX }, - - { MOV_CH_LAYOUT_EAC3_7_1_C, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Lsd, Rsd - 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; -} |