1 /*
2  *  aud_scan.h
3  *
4  *  Scans the audio track
5  *
6  *  Copyright (C) Tilmann Bitterberg - June 2003
7  *
8  *  This file is part of transcode, a video stream processing tool
9  *
10  *  transcode is free software; you can redistribute it and/or modify
11  *  it under the terms of the GNU General Public License as published by
12  *  the Free Software Foundation; either version 2, or (at your option)
13  *  any later version.
14  *
15  *  transcode is distributed in the hope that it will be useful,
16  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
17  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  *  GNU General Public License for more details.
19  *
20  *  You should have received a copy of the GNU General Public License
21  *  along with GNU Make; see the file COPYING.  If not, write to
22  *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
23  *
24  */
25 
26 int tc_get_mp3_header(unsigned char* hbuf, int* chans, int* srate, int *bitrate);
27 #define tc_decode_mp3_header(hbuf)  tc_get_mp3_header(hbuf, NULL, NULL, NULL)
28 int tc_get_ac3_header(unsigned char* _buf, int len, int* chans, int* srate, int *bitrate);
29 
30 // main entrance
31 int tc_get_audio_header(unsigned char* buf, int buflen, int format, int* chans, int* srate, int *bitrate);
32 int tc_probe_audio_header(unsigned char* buf, int buflen);
33 
34 int tc_format_ms_supported(int format);
35 void tc_format_mute(unsigned char *buf, int buflen, int format);
36 
37