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ffmpeg / libavcodec / mlp_parser.h @ 2912e87a

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/*
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 * MLP parser prototypes
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 * Copyright (c) 2007 Ian Caulfield
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 *
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 * This file is part of Libav.
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 *
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 * Libav is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * Libav is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with Libav; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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/**
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 * @file
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 * MLP parser prototypes
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 */
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#ifndef AVCODEC_MLP_PARSER_H
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#define AVCODEC_MLP_PARSER_H
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#include "get_bits.h"
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typedef struct MLPHeaderInfo
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{
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    int stream_type;            ///< 0xBB for MLP, 0xBA for TrueHD
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    int group1_bits;            ///< The bit depth of the first substream
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    int group2_bits;            ///< Bit depth of the second substream (MLP only)
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    int group1_samplerate;      ///< Sample rate of first substream
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    int group2_samplerate;      ///< Sample rate of second substream (MLP only)
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    int channels_mlp;           ///< Channel arrangement for MLP streams
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    int channels_thd_stream1;   ///< Channel arrangement for substream 1 of TrueHD streams (5.1)
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    int channels_thd_stream2;   ///< Channel arrangement for substream 2 of TrueHD streams (7.1)
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    int access_unit_size;       ///< Number of samples per coded frame
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    int access_unit_size_pow2;  ///< Next power of two above number of samples per frame
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    int is_vbr;                 ///< Stream is VBR instead of CBR
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    int peak_bitrate;           ///< Peak bitrate for VBR, actual bitrate (==peak) for CBR
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    int num_substreams;         ///< Number of substreams within stream
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} MLPHeaderInfo;
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int ff_mlp_read_major_sync(void *log, MLPHeaderInfo *mh, GetBitContext *gb);
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#endif /* AVCODEC_MLP_PARSER_H */
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