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MLP/TrueHD parser

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Patch by Ian Caulfield, ian D caulfield <at> gmail D com
Thread: [PATCH] MLP/TrueHD decoder, 12 Oct 14:26

Originally committed as revision 11109 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Ian Caulfield
2007-11-28 14:27:53 +00:00
committed by Carl Eugen Hoyos
parent 0fe93f07ba
commit 6b493b2f2f
4 changed files with 367 additions and 0 deletions
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58
libavcodec/mlp_parser.h Normal file
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/*
* 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.h
* MLP parser prototypes
*/
#ifndef FFMPEG_MLP_PARSER_H
#define FFMPEG_MLP_PARSER_H
typedef struct MLPHeaderInfo
{
int stream_type; ///< 0xBB for MLP, 0xBA for TrueHD
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 channels_mlp; ///< Channel arrangement for MLP streams
int channels_thd_stream1; ///< Channel arrangement for substream 1 of TrueHD streams (5.1)
int channels_thd_stream2; ///< Channel arrangement for substream 2 of TrueHD streams (7.1)
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, const uint8_t *buf,
unsigned int buf_size);
#endif /* FFMPEG_MLP_PARSER_H */