mkvtoolnix/ac3_common.h

/*
  mkvmerge -- utility for splicing together matroska files
      from component media subtypes

  ac3_common.h

  Written by Moritz Bunkus <moritz@bunkus.org>

  Distributed under the GPL
  see the file COPYING for details
  or visit http://www.gnu.org/copyleft/gpl.html
*/

/*!
    \file
    \version \$Id$
    \brief definitions and helper functions for AC3 data
    \author Moritz Bunkus <moritz@bunkus.org>
*/

#ifndef __AC3COMMON_H
#define __AC3COMMON_H

#define A52_CHANNEL 0
#define A52_MONO 1
#define A52_STEREO 2
#define A52_3F 3
#define A52_2F1R 4
#define A52_3F1R 5
#define A52_2F2R 6
#define A52_3F2R 7
#define A52_CHANNEL1 8
#define A52_CHANNEL2 9
#define A52_DOLBY 10
#define A52_CHANNEL_MASK 15

#define A52_LFE 16

typedef struct {
  int sample_rate;
  int bit_rate;
  int channels;
  int flags;
  int bytes;
} ac3_header_t;

int find_ac3_header(unsigned char *buf, int size, ac3_header_t *ac3_header);

#endif // __AC3COMMON_H