libavcodec/mlp_parser.h
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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
  */
 
 /**
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  * @file
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  * MLP parser prototypes
  */
 
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 #ifndef AVCODEC_MLP_PARSER_H
 #define AVCODEC_MLP_PARSER_H
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 #include "get_bits.h"
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 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;
 
 
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 int ff_mlp_read_major_sync(void *log, MLPHeaderInfo *mh, GetBitContext *gb);
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 uint64_t ff_truehd_layout(int chanmap);
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 extern const uint64_t ff_mlp_layout[32];
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 #endif /* AVCODEC_MLP_PARSER_H */