mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-27 09:52:17 +00:00
72 lines
3.2 KiB
C
72 lines
3.2 KiB
C
/*
|
|
* MLP parser prototypes
|
|
* Copyright (c) 2007 Ian Caulfield
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* MLP parser prototypes
|
|
*/
|
|
|
|
#ifndef AVCODEC_MLP_PARSER_H
|
|
#define AVCODEC_MLP_PARSER_H
|
|
|
|
#include "get_bits.h"
|
|
|
|
typedef struct MLPHeaderInfo
|
|
{
|
|
int stream_type; ///< 0xBB for MLP, 0xBA for TrueHD
|
|
int header_size; ///< Size of the major sync header, in bytes
|
|
|
|
int group1_bits; ///< The bit depth of the first substream
|
|
int group2_bits; ///< Bit depth of the second substream (MLP only)
|
|
|
|
int group1_samplerate; ///< Sample rate of first substream
|
|
int group2_samplerate; ///< Sample rate of second substream (MLP only)
|
|
|
|
int channel_arrangement;
|
|
|
|
int channel_modifier_thd_stream0; ///< Channel modifier for substream 0 of TrueHD sreams ("2-channel presentation")
|
|
int channel_modifier_thd_stream1; ///< Channel modifier for substream 1 of TrueHD sreams ("6-channel presentation")
|
|
int channel_modifier_thd_stream2; ///< Channel modifier for substream 2 of TrueHD sreams ("8-channel presentation")
|
|
|
|
int channels_mlp; ///< Channel count for MLP streams
|
|
int channels_thd_stream1; ///< Channel count for substream 1 of TrueHD streams ("6-channel presentation")
|
|
int channels_thd_stream2; ///< Channel count for substream 2 of TrueHD streams ("8-channel presentation")
|
|
uint64_t channel_layout_mlp; ///< Channel layout for MLP streams
|
|
uint64_t channel_layout_thd_stream1; ///< Channel layout for substream 1 of TrueHD streams ("6-channel presentation")
|
|
uint64_t channel_layout_thd_stream2; ///< Channel layout for substream 2 of TrueHD streams ("8-channel presentation")
|
|
|
|
int access_unit_size; ///< Number of samples per coded frame
|
|
int access_unit_size_pow2; ///< Next power of two above number of samples per frame
|
|
|
|
int is_vbr; ///< Stream is VBR instead of CBR
|
|
int peak_bitrate; ///< Peak bitrate for VBR, actual bitrate (==peak) for CBR
|
|
|
|
int num_substreams; ///< Number of substreams within stream
|
|
} MLPHeaderInfo;
|
|
|
|
|
|
int ff_mlp_read_major_sync(void *log, MLPHeaderInfo *mh, GetBitContext *gb);
|
|
uint64_t ff_truehd_layout(int chanmap);
|
|
|
|
extern const uint64_t ff_mlp_layout[32];
|
|
|
|
#endif /* AVCODEC_MLP_PARSER_H */
|