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2ba45a60 DM |
1 | /* |
2 | * ALAC encoder and decoder common data | |
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 | #include "libavutil/channel_layout.h" | |
22 | #include "alac_data.h" | |
23 | ||
24 | const uint8_t ff_alac_channel_layout_offsets[ALAC_MAX_CHANNELS][ALAC_MAX_CHANNELS] = { | |
25 | { 0 }, | |
26 | { 0, 1 }, | |
27 | { 2, 0, 1 }, | |
28 | { 2, 0, 1, 3 }, | |
29 | { 2, 0, 1, 3, 4 }, | |
30 | { 2, 0, 1, 4, 5, 3 }, | |
31 | { 2, 0, 1, 4, 5, 6, 3 }, | |
32 | { 2, 6, 7, 0, 1, 4, 5, 3 } | |
33 | }; | |
34 | ||
35 | const uint64_t ff_alac_channel_layouts[ALAC_MAX_CHANNELS + 1] = { | |
36 | AV_CH_LAYOUT_MONO, | |
37 | AV_CH_LAYOUT_STEREO, | |
38 | AV_CH_LAYOUT_SURROUND, | |
39 | AV_CH_LAYOUT_4POINT0, | |
40 | AV_CH_LAYOUT_5POINT0_BACK, | |
41 | AV_CH_LAYOUT_5POINT1_BACK, | |
42 | AV_CH_LAYOUT_6POINT1_BACK, | |
43 | AV_CH_LAYOUT_7POINT1_WIDE_BACK, | |
44 | 0 | |
45 | }; | |
46 | ||
47 | const enum AlacRawDataBlockType ff_alac_channel_elements[ALAC_MAX_CHANNELS][5] = { | |
48 | { TYPE_SCE, }, | |
49 | { TYPE_CPE, }, | |
50 | { TYPE_SCE, TYPE_CPE, }, | |
51 | { TYPE_SCE, TYPE_CPE, TYPE_SCE }, | |
52 | { TYPE_SCE, TYPE_CPE, TYPE_CPE, }, | |
53 | { TYPE_SCE, TYPE_CPE, TYPE_CPE, TYPE_SCE, }, | |
54 | { TYPE_SCE, TYPE_CPE, TYPE_CPE, TYPE_SCE, TYPE_SCE, }, | |
55 | { TYPE_SCE, TYPE_CPE, TYPE_CPE, TYPE_CPE, TYPE_SCE, }, | |
56 | }; |