repositories / deb_ffmpeg.git / blame
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|---|---|---|
| 2ba45a60 DM |
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 | |
| 24 | * MLP parser prototypes | |
| 25 | */ | |
| 26 | ||
| 27 | #ifndef AVCODEC_MLP_PARSER_H | |
| 28 | #define AVCODEC_MLP_PARSER_H | |
| 29 | ||
| 30 | #include "get_bits.h" | |
| 31 | ||
| 32 | typedef struct MLPHeaderInfo | |
| 33 | { | |
| 34 | int stream_type; ///< 0xBB for MLP, 0xBA for TrueHD | |
| f6fa7814 | 35 | int header_size; ///< Size of the major sync header, in bytes |
| 2ba45a60 DM |
36 | |
| 37 | int group1_bits; ///< The bit depth of the first substream | |
| 38 | int group2_bits; ///< Bit depth of the second substream (MLP only) | |
| 39 | ||
| 40 | int group1_samplerate; ///< Sample rate of first substream | |
| 41 | int group2_samplerate; ///< Sample rate of second substream (MLP only) | |
| 42 | ||
| 43 | int channel_arrangement; | |
| 44 | ||
| 45 | int channel_modifier_thd_stream0; ///< Channel modifier for substream 0 of TrueHD sreams ("2-channel presentation") | |
| 46 | int channel_modifier_thd_stream1; ///< Channel modifier for substream 1 of TrueHD sreams ("6-channel presentation") | |
| 47 | int channel_modifier_thd_stream2; ///< Channel modifier for substream 2 of TrueHD sreams ("8-channel presentation") | |
| 48 | ||
| 49 | int channels_mlp; ///< Channel count for MLP streams | |
| 50 | int channels_thd_stream1; ///< Channel count for substream 1 of TrueHD streams ("6-channel presentation") | |
| 51 | int channels_thd_stream2; ///< Channel count for substream 2 of TrueHD streams ("8-channel presentation") | |
| 52 | uint64_t channel_layout_mlp; ///< Channel layout for MLP streams | |
| 53 | uint64_t channel_layout_thd_stream1; ///< Channel layout for substream 1 of TrueHD streams ("6-channel presentation") | |
| 54 | uint64_t channel_layout_thd_stream2; ///< Channel layout for substream 2 of TrueHD streams ("8-channel presentation") | |
| 55 | ||
| 56 | int access_unit_size; ///< Number of samples per coded frame | |
| 57 | int access_unit_size_pow2; ///< Next power of two above number of samples per frame | |
| 58 | ||
| 59 | int is_vbr; ///< Stream is VBR instead of CBR | |
| 60 | int peak_bitrate; ///< Peak bitrate for VBR, actual bitrate (==peak) for CBR | |
| 61 | ||
| 62 | int num_substreams; ///< Number of substreams within stream | |
| 63 | } MLPHeaderInfo; | |
| 64 | ||
| 65 | ||
| 66 | int ff_mlp_read_major_sync(void *log, MLPHeaderInfo *mh, GetBitContext *gb); | |
| 67 | uint64_t ff_truehd_layout(int chanmap); | |
| 68 | ||
| 69 | extern const uint64_t ff_mlp_layout[32]; | |
| 70 | ||
| 71 | #endif /* AVCODEC_MLP_PARSER_H */ |