mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
970c76f322
request_channel_layout is a decoder option and it makes no sense to have it in a parser. This feature was needed in the past when the decoder was allowed to reuse the avctx from the demuxer. Nowadays the decoder receives only the parameters from it, already containing the real channel layout (and the correct request_channel_layout option). After initialization the decoder overwrites the channel layout with the downmixed one that is actually output, so there is no need to preserve this functionality in the parser. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
67 lines
3.1 KiB
C
67 lines
3.1 KiB
C
/*
|
|
* MLP parser prototypes
|
|
* Copyright (c) 2007 Ian Caulfield
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav 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.
|
|
*
|
|
* Libav 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 Libav; 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 "bitstream.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_modifier_thd_stream0; ///< Channel modifier for substream 0 of TrueHD streams ("2-channel presentation")
|
|
int channel_modifier_thd_stream1; ///< Channel modifier for substream 1 of TrueHD streams ("6-channel presentation")
|
|
int channel_modifier_thd_stream2; ///< Channel modifier for substream 2 of TrueHD streams ("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, BitstreamContext *bc);
|
|
|
|
#endif /* AVCODEC_MLP_PARSER_H */
|