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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 | #include <stdint.h> | |
27 | ||
28 | #include "libavutil/channel_layout.h" | |
29 | #include "libavcodec/avcodec.h" | |
30 | #include "mov_chan.h" | |
31 | ||
32 | /** | |
33 | * Channel Layout Tag | |
34 | * This tells which channels are present in the audio stream and the order in | |
35 | * which they appear. | |
36 | * | |
37 | * @note We're using the channel layout tag to indicate channel order | |
38 | * when the value is greater than 0x10000. The Apple documentation has | |
39 | * some contradictions as to how this is actually supposed to be handled. | |
40 | * | |
41 | * Core Audio File Format Spec: | |
42 | * "The high 16 bits indicates a specific ordering of the channels." | |
43 | * Core Audio Data Types Reference: | |
44 | * "These identifiers specify the channels included in a layout but | |
45 | * do not specify a particular ordering of those channels." | |
46 | */ | |
47 | enum MovChannelLayoutTag { | |
48 | MOV_CH_LAYOUT_UNKNOWN = 0xFFFF0000, | |
49 | MOV_CH_LAYOUT_USE_DESCRIPTIONS = ( 0 << 16) | 0, | |
50 | MOV_CH_LAYOUT_USE_BITMAP = ( 1 << 16) | 0, | |
51 | MOV_CH_LAYOUT_DISCRETEINORDER = (147 << 16) | 0, | |
52 | MOV_CH_LAYOUT_MONO = (100 << 16) | 1, | |
53 | MOV_CH_LAYOUT_STEREO = (101 << 16) | 2, | |
54 | MOV_CH_LAYOUT_STEREOHEADPHONES = (102 << 16) | 2, | |
55 | MOV_CH_LAYOUT_MATRIXSTEREO = (103 << 16) | 2, | |
56 | MOV_CH_LAYOUT_MIDSIDE = (104 << 16) | 2, | |
57 | MOV_CH_LAYOUT_XY = (105 << 16) | 2, | |
58 | MOV_CH_LAYOUT_BINAURAL = (106 << 16) | 2, | |
59 | MOV_CH_LAYOUT_AMBISONIC_B_FORMAT = (107 << 16) | 4, | |
60 | MOV_CH_LAYOUT_QUADRAPHONIC = (108 << 16) | 4, | |
61 | MOV_CH_LAYOUT_PENTAGONAL = (109 << 16) | 5, | |
62 | MOV_CH_LAYOUT_HEXAGONAL = (110 << 16) | 6, | |
63 | MOV_CH_LAYOUT_OCTAGONAL = (111 << 16) | 8, | |
64 | MOV_CH_LAYOUT_CUBE = (112 << 16) | 8, | |
65 | MOV_CH_LAYOUT_MPEG_3_0_A = (113 << 16) | 3, | |
66 | MOV_CH_LAYOUT_MPEG_3_0_B = (114 << 16) | 3, | |
67 | MOV_CH_LAYOUT_MPEG_4_0_A = (115 << 16) | 4, | |
68 | MOV_CH_LAYOUT_MPEG_4_0_B = (116 << 16) | 4, | |
69 | MOV_CH_LAYOUT_MPEG_5_0_A = (117 << 16) | 5, | |
70 | MOV_CH_LAYOUT_MPEG_5_0_B = (118 << 16) | 5, | |
71 | MOV_CH_LAYOUT_MPEG_5_0_C = (119 << 16) | 5, | |
72 | MOV_CH_LAYOUT_MPEG_5_0_D = (120 << 16) | 5, | |
73 | MOV_CH_LAYOUT_MPEG_5_1_A = (121 << 16) | 6, | |
74 | MOV_CH_LAYOUT_MPEG_5_1_B = (122 << 16) | 6, | |
75 | MOV_CH_LAYOUT_MPEG_5_1_C = (123 << 16) | 6, | |
76 | MOV_CH_LAYOUT_MPEG_5_1_D = (124 << 16) | 6, | |
77 | MOV_CH_LAYOUT_MPEG_6_1_A = (125 << 16) | 7, | |
78 | MOV_CH_LAYOUT_MPEG_7_1_A = (126 << 16) | 8, | |
79 | MOV_CH_LAYOUT_MPEG_7_1_B = (127 << 16) | 8, | |
80 | MOV_CH_LAYOUT_MPEG_7_1_C = (128 << 16) | 8, | |
81 | MOV_CH_LAYOUT_EMAGIC_DEFAULT_7_1 = (129 << 16) | 8, | |
82 | MOV_CH_LAYOUT_SMPTE_DTV = (130 << 16) | 8, | |
83 | MOV_CH_LAYOUT_ITU_2_1 = (131 << 16) | 3, | |
84 | MOV_CH_LAYOUT_ITU_2_2 = (132 << 16) | 4, | |
85 | MOV_CH_LAYOUT_DVD_4 = (133 << 16) | 3, | |
86 | MOV_CH_LAYOUT_DVD_5 = (134 << 16) | 4, | |
87 | MOV_CH_LAYOUT_DVD_6 = (135 << 16) | 5, | |
88 | MOV_CH_LAYOUT_DVD_10 = (136 << 16) | 4, | |
89 | MOV_CH_LAYOUT_DVD_11 = (137 << 16) | 5, | |
90 | MOV_CH_LAYOUT_DVD_18 = (138 << 16) | 5, | |
91 | MOV_CH_LAYOUT_AUDIOUNIT_6_0 = (139 << 16) | 6, | |
92 | MOV_CH_LAYOUT_AUDIOUNIT_7_0 = (140 << 16) | 7, | |
93 | MOV_CH_LAYOUT_AUDIOUNIT_7_0_FRONT = (148 << 16) | 7, | |
94 | MOV_CH_LAYOUT_AAC_6_0 = (141 << 16) | 6, | |
95 | MOV_CH_LAYOUT_AAC_6_1 = (142 << 16) | 7, | |
96 | MOV_CH_LAYOUT_AAC_7_0 = (143 << 16) | 7, | |
97 | MOV_CH_LAYOUT_AAC_OCTAGONAL = (144 << 16) | 8, | |
98 | MOV_CH_LAYOUT_TMH_10_2_STD = (145 << 16) | 16, | |
99 | MOV_CH_LAYOUT_TMH_10_2_FULL = (146 << 16) | 21, | |
100 | MOV_CH_LAYOUT_AC3_1_0_1 = (149 << 16) | 2, | |
101 | MOV_CH_LAYOUT_AC3_3_0 = (150 << 16) | 3, | |
102 | MOV_CH_LAYOUT_AC3_3_1 = (151 << 16) | 4, | |
103 | MOV_CH_LAYOUT_AC3_3_0_1 = (152 << 16) | 4, | |
104 | MOV_CH_LAYOUT_AC3_2_1_1 = (153 << 16) | 4, | |
105 | MOV_CH_LAYOUT_AC3_3_1_1 = (154 << 16) | 5, | |
106 | MOV_CH_LAYOUT_EAC3_6_0_A = (155 << 16) | 6, | |
107 | MOV_CH_LAYOUT_EAC3_7_0_A = (156 << 16) | 7, | |
108 | MOV_CH_LAYOUT_EAC3_6_1_A = (157 << 16) | 7, | |
109 | MOV_CH_LAYOUT_EAC3_6_1_B = (158 << 16) | 7, | |
110 | MOV_CH_LAYOUT_EAC3_6_1_C = (159 << 16) | 7, | |
111 | MOV_CH_LAYOUT_EAC3_7_1_A = (160 << 16) | 8, | |
112 | MOV_CH_LAYOUT_EAC3_7_1_B = (161 << 16) | 8, | |
113 | MOV_CH_LAYOUT_EAC3_7_1_C = (162 << 16) | 8, | |
114 | MOV_CH_LAYOUT_EAC3_7_1_D = (163 << 16) | 8, | |
115 | MOV_CH_LAYOUT_EAC3_7_1_E = (164 << 16) | 8, | |
116 | MOV_CH_LAYOUT_EAC3_7_1_F = (165 << 16) | 8, | |
117 | MOV_CH_LAYOUT_EAC3_7_1_G = (166 << 16) | 8, | |
118 | MOV_CH_LAYOUT_EAC3_7_1_H = (167 << 16) | 8, | |
119 | MOV_CH_LAYOUT_DTS_3_1 = (168 << 16) | 4, | |
120 | MOV_CH_LAYOUT_DTS_4_1 = (169 << 16) | 5, | |
121 | MOV_CH_LAYOUT_DTS_6_0_A = (170 << 16) | 6, | |
122 | MOV_CH_LAYOUT_DTS_6_0_B = (171 << 16) | 6, | |
123 | MOV_CH_LAYOUT_DTS_6_0_C = (172 << 16) | 6, | |
124 | MOV_CH_LAYOUT_DTS_6_1_A = (173 << 16) | 7, | |
125 | MOV_CH_LAYOUT_DTS_6_1_B = (174 << 16) | 7, | |
126 | MOV_CH_LAYOUT_DTS_6_1_C = (175 << 16) | 7, | |
127 | MOV_CH_LAYOUT_DTS_6_1_D = (182 << 16) | 7, | |
128 | MOV_CH_LAYOUT_DTS_7_0 = (176 << 16) | 7, | |
129 | MOV_CH_LAYOUT_DTS_7_1 = (177 << 16) | 8, | |
130 | MOV_CH_LAYOUT_DTS_8_0_A = (178 << 16) | 8, | |
131 | MOV_CH_LAYOUT_DTS_8_0_B = (179 << 16) | 8, | |
132 | MOV_CH_LAYOUT_DTS_8_1_A = (180 << 16) | 9, | |
133 | MOV_CH_LAYOUT_DTS_8_1_B = (181 << 16) | 9, | |
134 | }; | |
135 | ||
136 | struct MovChannelLayoutMap { | |
137 | uint32_t tag; | |
138 | uint64_t layout; | |
139 | }; | |
140 | ||
141 | static const struct MovChannelLayoutMap mov_ch_layout_map_misc[] = { | |
142 | { MOV_CH_LAYOUT_USE_DESCRIPTIONS, 0 }, | |
143 | { MOV_CH_LAYOUT_USE_BITMAP, 0 }, | |
144 | { MOV_CH_LAYOUT_DISCRETEINORDER, 0 }, | |
145 | { MOV_CH_LAYOUT_UNKNOWN, 0 }, | |
146 | { MOV_CH_LAYOUT_TMH_10_2_STD, 0 }, // L, R, C, Vhc, Lsd, Rsd, | |
147 | // Ls, Rs, Vhl, Vhr, Lw, Rw, | |
148 | // Csd, Cs, LFE1, LFE2 | |
149 | { MOV_CH_LAYOUT_TMH_10_2_FULL, 0 }, // L, R, C, Vhc, Lsd, Rsd, | |
150 | // Ls, Rs, Vhl, Vhr, Lw, Rw, | |
151 | // Csd, Cs, LFE1, LFE2, Lc, Rc, | |
152 | // HI, VI, Haptic | |
153 | { 0, 0 }, | |
154 | }; | |
155 | ||
156 | static const struct MovChannelLayoutMap mov_ch_layout_map_1ch[] = { | |
157 | { MOV_CH_LAYOUT_MONO, AV_CH_LAYOUT_MONO }, // C | |
158 | { 0, 0 }, | |
159 | }; | |
160 | ||
161 | static const struct MovChannelLayoutMap mov_ch_layout_map_2ch[] = { | |
162 | { MOV_CH_LAYOUT_STEREO, AV_CH_LAYOUT_STEREO }, // L, R | |
163 | { MOV_CH_LAYOUT_STEREOHEADPHONES, AV_CH_LAYOUT_STEREO }, // L, R | |
164 | { MOV_CH_LAYOUT_BINAURAL, AV_CH_LAYOUT_STEREO }, // L, R | |
165 | { MOV_CH_LAYOUT_MIDSIDE, AV_CH_LAYOUT_STEREO }, // C, sides | |
166 | { MOV_CH_LAYOUT_XY, AV_CH_LAYOUT_STEREO }, // X (left), Y (right) | |
167 | ||
168 | { MOV_CH_LAYOUT_MATRIXSTEREO, AV_CH_LAYOUT_STEREO_DOWNMIX }, // Lt, Rt | |
169 | ||
170 | { MOV_CH_LAYOUT_AC3_1_0_1, AV_CH_LAYOUT_MONO | // C, LFE | |
171 | AV_CH_LOW_FREQUENCY }, | |
172 | { 0, 0 }, | |
173 | }; | |
174 | ||
175 | static const struct MovChannelLayoutMap mov_ch_layout_map_3ch[] = { | |
176 | { MOV_CH_LAYOUT_MPEG_3_0_A, AV_CH_LAYOUT_SURROUND }, // L, R, C | |
177 | { MOV_CH_LAYOUT_MPEG_3_0_B, AV_CH_LAYOUT_SURROUND }, // C, L, R | |
178 | { MOV_CH_LAYOUT_AC3_3_0, AV_CH_LAYOUT_SURROUND }, // L, C, R | |
179 | ||
180 | { MOV_CH_LAYOUT_ITU_2_1, AV_CH_LAYOUT_2_1 }, // L, R, Cs | |
181 | ||
182 | { MOV_CH_LAYOUT_DVD_4, AV_CH_LAYOUT_2POINT1 }, // L, R, LFE | |
183 | { 0, 0 }, | |
184 | }; | |
185 | ||
186 | static const struct MovChannelLayoutMap mov_ch_layout_map_4ch[] = { | |
187 | { MOV_CH_LAYOUT_AMBISONIC_B_FORMAT, 0 }, // W, X, Y, Z | |
188 | ||
189 | { MOV_CH_LAYOUT_QUADRAPHONIC, AV_CH_LAYOUT_QUAD }, // L, R, Rls, Rrs | |
190 | ||
191 | { MOV_CH_LAYOUT_MPEG_4_0_A, AV_CH_LAYOUT_4POINT0 }, // L, R, C, Cs | |
192 | { MOV_CH_LAYOUT_MPEG_4_0_B, AV_CH_LAYOUT_4POINT0 }, // C, L, R, Cs | |
193 | { MOV_CH_LAYOUT_AC3_3_1, AV_CH_LAYOUT_4POINT0 }, // L, C, R, Cs | |
194 | ||
195 | { MOV_CH_LAYOUT_ITU_2_2, AV_CH_LAYOUT_2_2 }, // L, R, Ls, Rs | |
196 | ||
197 | { MOV_CH_LAYOUT_DVD_5, AV_CH_LAYOUT_2_1 | // L, R, LFE, Cs | |
198 | AV_CH_LOW_FREQUENCY }, | |
199 | { MOV_CH_LAYOUT_AC3_2_1_1, AV_CH_LAYOUT_2_1 | // L, R, Cs, LFE | |
200 | AV_CH_LOW_FREQUENCY }, | |
201 | ||
202 | { MOV_CH_LAYOUT_DVD_10, AV_CH_LAYOUT_3POINT1 }, // L, R, C, LFE | |
203 | { MOV_CH_LAYOUT_AC3_3_0_1, AV_CH_LAYOUT_3POINT1 }, // L, C, R, LFE | |
204 | { MOV_CH_LAYOUT_DTS_3_1, AV_CH_LAYOUT_3POINT1 }, // C, L, R, LFE | |
205 | { 0, 0 }, | |
206 | }; | |
207 | ||
208 | static const struct MovChannelLayoutMap mov_ch_layout_map_5ch[] = { | |
209 | { MOV_CH_LAYOUT_PENTAGONAL, AV_CH_LAYOUT_5POINT0_BACK }, // L, R, Rls, Rrs, C | |
210 | ||
211 | { MOV_CH_LAYOUT_MPEG_5_0_A, AV_CH_LAYOUT_5POINT0 }, // L, R, C, Ls, Rs | |
212 | { MOV_CH_LAYOUT_MPEG_5_0_B, AV_CH_LAYOUT_5POINT0 }, // L, R, Ls, Rs, C | |
213 | { MOV_CH_LAYOUT_MPEG_5_0_C, AV_CH_LAYOUT_5POINT0 }, // L, C, R, Ls, Rs | |
214 | { MOV_CH_LAYOUT_MPEG_5_0_D, AV_CH_LAYOUT_5POINT0 }, // C, L, R, Ls, Rs | |
215 | ||
216 | { MOV_CH_LAYOUT_DVD_6, AV_CH_LAYOUT_2_2 | // L, R, LFE, Ls, Rs | |
217 | AV_CH_LOW_FREQUENCY }, | |
218 | { MOV_CH_LAYOUT_DVD_18, AV_CH_LAYOUT_2_2 | // L, R, Ls, Rs, LFE | |
219 | AV_CH_LOW_FREQUENCY }, | |
220 | ||
221 | { MOV_CH_LAYOUT_DVD_11, AV_CH_LAYOUT_4POINT1 }, // L, R, C, LFE, Cs | |
222 | { MOV_CH_LAYOUT_AC3_3_1_1, AV_CH_LAYOUT_4POINT1 }, // L, C, R, Cs, LFE | |
223 | { MOV_CH_LAYOUT_DTS_4_1, AV_CH_LAYOUT_4POINT1 }, // C, L, R, Cs, LFE | |
224 | { 0, 0 }, | |
225 | }; | |
226 | ||
227 | static const struct MovChannelLayoutMap mov_ch_layout_map_6ch[] = { | |
228 | { MOV_CH_LAYOUT_HEXAGONAL, AV_CH_LAYOUT_HEXAGONAL }, // L, R, Rls, Rrs, C, Cs | |
229 | { MOV_CH_LAYOUT_DTS_6_0_C, AV_CH_LAYOUT_HEXAGONAL }, // C, Cs, L, R, Rls, Rrs | |
230 | ||
231 | { MOV_CH_LAYOUT_MPEG_5_1_A, AV_CH_LAYOUT_5POINT1 }, // L, R, C, LFE, Ls, Rs | |
232 | { MOV_CH_LAYOUT_MPEG_5_1_B, AV_CH_LAYOUT_5POINT1 }, // L, R, Ls, Rs, C, LFE | |
233 | { MOV_CH_LAYOUT_MPEG_5_1_C, AV_CH_LAYOUT_5POINT1 }, // L, C, R, Ls, Rs, LFE | |
234 | { MOV_CH_LAYOUT_MPEG_5_1_D, AV_CH_LAYOUT_5POINT1 }, // C, L, R, Ls, Rs, LFE | |
235 | ||
236 | { MOV_CH_LAYOUT_AUDIOUNIT_6_0, AV_CH_LAYOUT_6POINT0 }, // L, R, Ls, Rs, C, Cs | |
237 | { MOV_CH_LAYOUT_AAC_6_0, AV_CH_LAYOUT_6POINT0 }, // C, L, R, Ls, Rs, Cs | |
238 | { MOV_CH_LAYOUT_EAC3_6_0_A, AV_CH_LAYOUT_6POINT0 }, // L, C, R, Ls, Rs, Cs | |
239 | ||
240 | { MOV_CH_LAYOUT_DTS_6_0_A, AV_CH_LAYOUT_6POINT0_FRONT }, // Lc, Rc, L, R, Ls, Rs | |
241 | ||
242 | { MOV_CH_LAYOUT_DTS_6_0_B, AV_CH_LAYOUT_5POINT0_BACK | // C, L, R, Rls, Rrs, Ts | |
243 | AV_CH_TOP_CENTER }, | |
244 | { 0, 0 }, | |
245 | }; | |
246 | ||
247 | static const struct MovChannelLayoutMap mov_ch_layout_map_7ch[] = { | |
248 | { MOV_CH_LAYOUT_MPEG_6_1_A, AV_CH_LAYOUT_6POINT1 }, // L, R, C, LFE, Ls, Rs, Cs | |
249 | { MOV_CH_LAYOUT_AAC_6_1, AV_CH_LAYOUT_6POINT1 }, // C, L, R, Ls, Rs, Cs, LFE | |
250 | { MOV_CH_LAYOUT_EAC3_6_1_A, AV_CH_LAYOUT_6POINT1 }, // L, C, R, Ls, Rs, LFE, Cs | |
251 | { MOV_CH_LAYOUT_DTS_6_1_D, AV_CH_LAYOUT_6POINT1 }, // C, L, R, Ls, Rs, LFE, Cs | |
252 | ||
253 | { MOV_CH_LAYOUT_AUDIOUNIT_7_0, AV_CH_LAYOUT_7POINT0 }, // L, R, Ls, Rs, C, Rls, Rrs | |
254 | { MOV_CH_LAYOUT_AAC_7_0, AV_CH_LAYOUT_7POINT0 }, // C, L, R, Ls, Rs, Rls, Rrs | |
255 | { MOV_CH_LAYOUT_EAC3_7_0_A, AV_CH_LAYOUT_7POINT0 }, // L, C, R, Ls, Rs, Rls, Rrs | |
256 | ||
257 | { MOV_CH_LAYOUT_AUDIOUNIT_7_0_FRONT, AV_CH_LAYOUT_7POINT0_FRONT }, // L, R, Ls, Rs, C, Lc, Rc | |
258 | { MOV_CH_LAYOUT_DTS_7_0, AV_CH_LAYOUT_7POINT0_FRONT }, // Lc, C, Rc, L, R, Ls, Rs | |
259 | ||
260 | { MOV_CH_LAYOUT_EAC3_6_1_B, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Ts | |
261 | AV_CH_TOP_CENTER }, | |
262 | ||
263 | { MOV_CH_LAYOUT_EAC3_6_1_C, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Vhc | |
264 | AV_CH_TOP_FRONT_CENTER }, | |
265 | ||
266 | { MOV_CH_LAYOUT_DTS_6_1_A, AV_CH_LAYOUT_6POINT1_FRONT }, // Lc, Rc, L, R, Ls, Rs, LFE | |
267 | ||
268 | { MOV_CH_LAYOUT_DTS_6_1_B, AV_CH_LAYOUT_5POINT1_BACK | // C, L, R, Rls, Rrs, Ts, LFE | |
269 | AV_CH_TOP_CENTER }, | |
270 | ||
271 | { MOV_CH_LAYOUT_DTS_6_1_C, AV_CH_LAYOUT_6POINT1_BACK }, // C, Cs, L, R, Rls, Rrs, LFE | |
272 | { 0, 0 }, | |
273 | }; | |
274 | ||
275 | static const struct MovChannelLayoutMap mov_ch_layout_map_8ch[] = { | |
276 | { MOV_CH_LAYOUT_OCTAGONAL, AV_CH_LAYOUT_OCTAGONAL }, // L, R, Rls, Rrs, C, Cs, Ls, Rs | |
277 | { MOV_CH_LAYOUT_AAC_OCTAGONAL, AV_CH_LAYOUT_OCTAGONAL }, // C, L, R, Ls, Rs, Rls, Rrs, Cs | |
278 | ||
279 | { MOV_CH_LAYOUT_CUBE, AV_CH_LAYOUT_QUAD | // L, R, Rls, Rrs, Vhl, Vhr, Rlt, Rrt | |
280 | AV_CH_TOP_FRONT_LEFT | | |
281 | AV_CH_TOP_FRONT_RIGHT | | |
282 | AV_CH_TOP_BACK_LEFT | | |
283 | AV_CH_TOP_BACK_RIGHT }, | |
284 | ||
285 | { MOV_CH_LAYOUT_MPEG_7_1_A, AV_CH_LAYOUT_7POINT1_WIDE }, // L, R, C, LFE, Ls, Rs, Lc, Rc | |
286 | { MOV_CH_LAYOUT_MPEG_7_1_B, AV_CH_LAYOUT_7POINT1_WIDE }, // C, Lc, Rc, L, R, Ls, Rs, LFE | |
287 | { MOV_CH_LAYOUT_EMAGIC_DEFAULT_7_1, AV_CH_LAYOUT_7POINT1_WIDE }, // L, R, Ls, Rs, C, LFE, Lc, Rc | |
288 | { MOV_CH_LAYOUT_EAC3_7_1_B, AV_CH_LAYOUT_7POINT1_WIDE }, // L, C, R, Ls, Rs, LFE, Lc, Rc | |
289 | { MOV_CH_LAYOUT_DTS_7_1, AV_CH_LAYOUT_7POINT1_WIDE }, // Lc, C, Rc, L, R, Ls, Rs, LFE | |
290 | ||
291 | { MOV_CH_LAYOUT_MPEG_7_1_C, AV_CH_LAYOUT_7POINT1 }, // L, R, C, LFE, Ls, Rs, Rls, Rrs | |
292 | { MOV_CH_LAYOUT_EAC3_7_1_A, AV_CH_LAYOUT_7POINT1 }, // L, C, R, Ls, Rs, LFE, Rls, Rrs | |
293 | ||
294 | { MOV_CH_LAYOUT_SMPTE_DTV, AV_CH_LAYOUT_5POINT1 | // L, R, C, LFE, Ls, Rs, Lt, Rt | |
295 | AV_CH_LAYOUT_STEREO_DOWNMIX }, | |
296 | ||
297 | { MOV_CH_LAYOUT_EAC3_7_1_C, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Lsd, Rsd | |
298 | AV_CH_SURROUND_DIRECT_LEFT | | |
299 | AV_CH_SURROUND_DIRECT_RIGHT }, | |
300 | ||
301 | { MOV_CH_LAYOUT_EAC3_7_1_D, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Lw, Rw | |
302 | AV_CH_WIDE_LEFT | | |
303 | AV_CH_WIDE_RIGHT }, | |
304 | ||
305 | { MOV_CH_LAYOUT_EAC3_7_1_E, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Vhl, Vhr | |
306 | AV_CH_TOP_FRONT_LEFT | | |
307 | AV_CH_TOP_FRONT_RIGHT }, | |
308 | ||
309 | { MOV_CH_LAYOUT_EAC3_7_1_F, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Cs, Ts | |
310 | AV_CH_BACK_CENTER | | |
311 | AV_CH_TOP_CENTER }, | |
312 | ||
313 | { MOV_CH_LAYOUT_EAC3_7_1_G, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Cs, Vhc | |
314 | AV_CH_BACK_CENTER | | |
315 | AV_CH_TOP_FRONT_CENTER }, | |
316 | ||
317 | { MOV_CH_LAYOUT_EAC3_7_1_H, AV_CH_LAYOUT_5POINT1 | // L, C, R, Ls, Rs, LFE, Ts, Vhc | |
318 | AV_CH_TOP_CENTER | | |
319 | AV_CH_TOP_FRONT_CENTER }, | |
320 | ||
321 | { MOV_CH_LAYOUT_DTS_8_0_A, AV_CH_LAYOUT_2_2 | // Lc, Rc, L, R, Ls, Rs, Rls, Rrs | |
322 | AV_CH_BACK_LEFT | | |
323 | AV_CH_BACK_RIGHT | | |
324 | AV_CH_FRONT_LEFT_OF_CENTER | | |
325 | AV_CH_FRONT_RIGHT_OF_CENTER }, | |
326 | ||
327 | { MOV_CH_LAYOUT_DTS_8_0_B, AV_CH_LAYOUT_5POINT0 | // Lc, C, Rc, L, R, Ls, Cs, Rs | |
328 | AV_CH_FRONT_LEFT_OF_CENTER | | |
329 | AV_CH_FRONT_RIGHT_OF_CENTER | | |
330 | AV_CH_BACK_CENTER }, | |
331 | { 0, 0 }, | |
332 | }; | |
333 | ||
334 | static const struct MovChannelLayoutMap mov_ch_layout_map_9ch[] = { | |
335 | { MOV_CH_LAYOUT_DTS_8_1_A, AV_CH_LAYOUT_2_2 | // Lc, Rc, L, R, Ls, Rs, Rls, Rrs, LFE | |
336 | AV_CH_BACK_LEFT | | |
337 | AV_CH_BACK_RIGHT | | |
338 | AV_CH_FRONT_LEFT_OF_CENTER | | |
339 | AV_CH_FRONT_RIGHT_OF_CENTER | | |
340 | AV_CH_LOW_FREQUENCY }, | |
341 | ||
342 | { MOV_CH_LAYOUT_DTS_8_1_B, AV_CH_LAYOUT_7POINT1_WIDE | // Lc, C, Rc, L, R, Ls, Cs, Rs, LFE | |
343 | AV_CH_BACK_CENTER }, | |
344 | { 0, 0 }, | |
345 | }; | |
346 | ||
347 | static const struct MovChannelLayoutMap * const mov_ch_layout_map[] = { | |
348 | mov_ch_layout_map_misc, | |
349 | mov_ch_layout_map_1ch, | |
350 | mov_ch_layout_map_2ch, | |
351 | mov_ch_layout_map_3ch, | |
352 | mov_ch_layout_map_4ch, | |
353 | mov_ch_layout_map_5ch, | |
354 | mov_ch_layout_map_6ch, | |
355 | mov_ch_layout_map_7ch, | |
356 | mov_ch_layout_map_8ch, | |
357 | mov_ch_layout_map_9ch, | |
358 | }; | |
359 | ||
360 | static const enum MovChannelLayoutTag mov_ch_layouts_aac[] = { | |
361 | MOV_CH_LAYOUT_MONO, | |
362 | MOV_CH_LAYOUT_STEREO, | |
363 | MOV_CH_LAYOUT_AC3_1_0_1, | |
364 | MOV_CH_LAYOUT_MPEG_3_0_B, | |
365 | MOV_CH_LAYOUT_ITU_2_1, | |
366 | MOV_CH_LAYOUT_DVD_4, | |
367 | MOV_CH_LAYOUT_QUADRAPHONIC, | |
368 | MOV_CH_LAYOUT_MPEG_4_0_B, | |
369 | MOV_CH_LAYOUT_ITU_2_2, | |
370 | MOV_CH_LAYOUT_AC3_2_1_1, | |
371 | MOV_CH_LAYOUT_DTS_3_1, | |
372 | MOV_CH_LAYOUT_MPEG_5_0_D, | |
373 | MOV_CH_LAYOUT_DVD_18, | |
374 | MOV_CH_LAYOUT_DTS_4_1, | |
375 | MOV_CH_LAYOUT_MPEG_5_1_D, | |
376 | MOV_CH_LAYOUT_AAC_6_0, | |
377 | MOV_CH_LAYOUT_DTS_6_0_A, | |
378 | MOV_CH_LAYOUT_AAC_6_1, | |
379 | MOV_CH_LAYOUT_AAC_7_0, | |
380 | MOV_CH_LAYOUT_DTS_6_1_A, | |
381 | MOV_CH_LAYOUT_AAC_OCTAGONAL, | |
382 | MOV_CH_LAYOUT_MPEG_7_1_B, | |
383 | MOV_CH_LAYOUT_DTS_8_0_A, | |
384 | 0, | |
385 | }; | |
386 | ||
387 | static const enum MovChannelLayoutTag mov_ch_layouts_ac3[] = { | |
388 | MOV_CH_LAYOUT_MONO, | |
389 | MOV_CH_LAYOUT_STEREO, | |
390 | MOV_CH_LAYOUT_AC3_1_0_1, | |
391 | MOV_CH_LAYOUT_AC3_3_0, | |
392 | MOV_CH_LAYOUT_ITU_2_1, | |
393 | MOV_CH_LAYOUT_DVD_4, | |
394 | MOV_CH_LAYOUT_AC3_3_1, | |
395 | MOV_CH_LAYOUT_ITU_2_2, | |
396 | MOV_CH_LAYOUT_AC3_2_1_1, | |
397 | MOV_CH_LAYOUT_AC3_3_0_1, | |
398 | MOV_CH_LAYOUT_MPEG_5_0_C, | |
399 | MOV_CH_LAYOUT_DVD_18, | |
400 | MOV_CH_LAYOUT_AC3_3_1_1, | |
401 | MOV_CH_LAYOUT_MPEG_5_1_C, | |
402 | 0, | |
403 | }; | |
404 | ||
405 | static const enum MovChannelLayoutTag mov_ch_layouts_alac[] = { | |
406 | MOV_CH_LAYOUT_MONO, | |
407 | MOV_CH_LAYOUT_STEREO, | |
408 | MOV_CH_LAYOUT_MPEG_3_0_B, | |
409 | MOV_CH_LAYOUT_MPEG_4_0_B, | |
410 | MOV_CH_LAYOUT_MPEG_5_0_D, | |
411 | MOV_CH_LAYOUT_MPEG_5_1_D, | |
412 | MOV_CH_LAYOUT_AAC_6_1, | |
413 | MOV_CH_LAYOUT_MPEG_7_1_B, | |
414 | 0, | |
415 | }; | |
416 | ||
417 | static const enum MovChannelLayoutTag mov_ch_layouts_wav[] = { | |
418 | MOV_CH_LAYOUT_MONO, | |
419 | MOV_CH_LAYOUT_STEREO, | |
420 | MOV_CH_LAYOUT_MATRIXSTEREO, | |
421 | MOV_CH_LAYOUT_MPEG_3_0_A, | |
422 | MOV_CH_LAYOUT_QUADRAPHONIC, | |
423 | MOV_CH_LAYOUT_MPEG_5_0_A, | |
424 | MOV_CH_LAYOUT_MPEG_5_1_A, | |
425 | MOV_CH_LAYOUT_MPEG_6_1_A, | |
426 | MOV_CH_LAYOUT_MPEG_7_1_A, | |
427 | MOV_CH_LAYOUT_MPEG_7_1_C, | |
428 | MOV_CH_LAYOUT_SMPTE_DTV, | |
429 | 0, | |
430 | }; | |
431 | ||
432 | static const struct { | |
433 | enum AVCodecID codec_id; | |
434 | const enum MovChannelLayoutTag *layouts; | |
435 | } mov_codec_ch_layouts[] = { | |
436 | { AV_CODEC_ID_AAC, mov_ch_layouts_aac }, | |
437 | { AV_CODEC_ID_AC3, mov_ch_layouts_ac3 }, | |
438 | { AV_CODEC_ID_ALAC, mov_ch_layouts_alac }, | |
439 | { AV_CODEC_ID_PCM_U8, mov_ch_layouts_wav }, | |
440 | { AV_CODEC_ID_PCM_S8, mov_ch_layouts_wav }, | |
441 | { AV_CODEC_ID_PCM_S16LE, mov_ch_layouts_wav }, | |
442 | { AV_CODEC_ID_PCM_S16BE, mov_ch_layouts_wav }, | |
443 | { AV_CODEC_ID_PCM_S24LE, mov_ch_layouts_wav }, | |
444 | { AV_CODEC_ID_PCM_S24BE, mov_ch_layouts_wav }, | |
445 | { AV_CODEC_ID_PCM_S32LE, mov_ch_layouts_wav }, | |
446 | { AV_CODEC_ID_PCM_S32BE, mov_ch_layouts_wav }, | |
447 | { AV_CODEC_ID_PCM_F32LE, mov_ch_layouts_wav }, | |
448 | { AV_CODEC_ID_PCM_F32BE, mov_ch_layouts_wav }, | |
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 | } |