| Ian Caulfield | 6b493b2 | 2007-11-28 14:27:53 | [diff] [blame^] | 1 | /* |
| 2 | * MLP parser prototypes |
| 3 | * Copyright (c) 2007 Ian Caulfield |
| 4 | * |
| 5 | * This file is part of FFmpeg. |
| 6 | * |
| 7 | * FFmpeg is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU Lesser General Public |
| 9 | * License as published by the Free Software Foundation; either |
| 10 | * version 2.1 of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * FFmpeg is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * Lesser General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Lesser General Public |
| 18 | * License along with FFmpeg; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 20 | */ |
| 21 | |
| 22 | /** |
| 23 | * @file mlp_parser.h |
| 24 | * MLP parser prototypes |
| 25 | */ |
| 26 | |
| 27 | #ifndef FFMPEG_MLP_PARSER_H |
| 28 | #define FFMPEG_MLP_PARSER_H |
| 29 | |
| 30 | typedef struct MLPHeaderInfo |
| 31 | { |
| 32 | int stream_type; ///< 0xBB for MLP, 0xBA for TrueHD |
| 33 | |
| 34 | int group1_bits; ///< The bit depth of the first substream |
| 35 | int group2_bits; ///< Bit depth of the second substream (MLP only) |
| 36 | |
| 37 | int group1_samplerate; ///< Sample rate of first substream |
| 38 | int group2_samplerate; ///< Sample rate of second substream (MLP only) |
| 39 | |
| 40 | int channels_mlp; ///< Channel arrangement for MLP streams |
| 41 | int channels_thd_stream1; ///< Channel arrangement for substream 1 of TrueHD streams (5.1) |
| 42 | int channels_thd_stream2; ///< Channel arrangement for substream 2 of TrueHD streams (7.1) |
| 43 | |
| 44 | int access_unit_size; ///< Number of samples per coded frame |
| 45 | int access_unit_size_pow2; ///< Next power of two above number of samples per frame |
| 46 | |
| 47 | int is_vbr; ///< Stream is VBR instead of CBR |
| 48 | int peak_bitrate; ///< Peak bitrate for VBR, actual bitrate (==peak) for CBR |
| 49 | |
| 50 | int num_substreams; ///< Number of substreams within stream |
| 51 | } MLPHeaderInfo; |
| 52 | |
| 53 | |
| 54 | int ff_mlp_read_major_sync(void *log, MLPHeaderInfo *mh, const uint8_t *buf, |
| 55 | unsigned int buf_size); |
| 56 | |
| 57 | #endif /* FFMPEG_MLP_PARSER_H */ |
| 58 | |
