ac3_common.h

/*
  ogmmerge -- utility for splicing together ogg bitstreams
  from component media subtypes

  ac3common.cpp
  AC3 header decoding functions

  Written by Moritz Bunkus <moritz@bunkus.org>
  Based on Xiph.org's 'oggmerge' found in their CVS repository
  See http://www.xiph.org

  Distributed under the GPL
  see the file COPYING for details
  or visit http://www.gnu.org/copyleft/gpl.html
*/
#ifndef __AC3COMMON_H
#define __AC3COMMON_H

#ifdef __cplusplus
extern "C" {
#endif

#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);

#ifdef __cplusplus
}
#endif

#endif