2 * ALAC encoder and decoder common data
4 * This file is part of FFmpeg.
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.
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.
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
21 #include "libavutil/channel_layout.h"
22 #include "alac_data.h"
24 const uint8_t ff_alac_channel_layout_offsets[ALAC_MAX_CHANNELS][ALAC_MAX_CHANNELS] = {
31 { 2, 0, 1, 4, 5, 6, 3 },
32 { 2, 6, 7, 0, 1, 4, 5, 3 }
35 const uint64_t ff_alac_channel_layouts[ALAC_MAX_CHANNELS + 1] = {
38 AV_CH_LAYOUT_SURROUND,
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,
47 const enum AlacRawDataBlockType ff_alac_channel_elements[ALAC_MAX_CHANNELS][5] = {
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, },