blob: 0bcb06c07563bdc29fa37051126d7ad64e4049d7
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 | }; |
57 |