| 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 | #ifndef AVCODEC_ALAC_DATA_H |
| 22 | #define AVCODEC_ALAC_DATA_H |
| 23 | |
| 24 | #include <stdint.h> |
| 25 | |
| 26 | enum AlacRawDataBlockType { |
| 27 | /* At the moment, only SCE, CPE, LFE, and END are recognized. */ |
| 28 | TYPE_SCE, |
| 29 | TYPE_CPE, |
| 30 | TYPE_CCE, |
| 31 | TYPE_LFE, |
| 32 | TYPE_DSE, |
| 33 | TYPE_PCE, |
| 34 | TYPE_FIL, |
| 35 | TYPE_END |
| 36 | }; |
| 37 | |
| 38 | #define ALAC_MAX_CHANNELS 8 |
| 39 | |
| 40 | extern const uint8_t ff_alac_channel_layout_offsets[ALAC_MAX_CHANNELS][ALAC_MAX_CHANNELS]; |
| 41 | |
| 42 | extern const uint64_t ff_alac_channel_layouts[ALAC_MAX_CHANNELS + 1]; |
| 43 | |
| 44 | extern const enum AlacRawDataBlockType ff_alac_channel_elements[ALAC_MAX_CHANNELS][5]; |
| 45 | |
| 46 | #endif /* AVCODEC_ALAC_DATA_H */ |