1/*
2 * Register all the grabbing devices.
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#include "config.h"
22#include "libavformat/avformat.h"
23#include "avdevice.h"
24
25unsigned avdevice_version(void)
26{
27    return LIBAVDEVICE_VERSION_INT;
28}
29
30#define REGISTER_MUXER(X,x) { \
31          extern AVOutputFormat x##_muxer; \
32          if(CONFIG_##X##_MUXER)   av_register_output_format(&x##_muxer); }
33#define REGISTER_DEMUXER(X,x) { \
34          extern AVInputFormat x##_demuxer; \
35          if(CONFIG_##X##_DEMUXER) av_register_input_format(&x##_demuxer); }
36#define REGISTER_MUXDEMUX(X,x)  REGISTER_MUXER(X,x); REGISTER_DEMUXER(X,x)
37
38void avdevice_register_all(void)
39{
40    static int initialized;
41
42    if (initialized)
43        return;
44    initialized = 1;
45
46    /* devices */
47    REGISTER_MUXDEMUX (ALSA, alsa);
48    REGISTER_MUXDEMUX (AUDIO_BEOS, audio_beos);
49    REGISTER_DEMUXER  (BKTR, bktr);
50    REGISTER_DEMUXER  (DV1394, dv1394);
51    REGISTER_MUXDEMUX (OSS, oss);
52    REGISTER_DEMUXER  (V4L2, v4l2);
53    REGISTER_DEMUXER  (V4L, v4l);
54    REGISTER_DEMUXER  (VFWCAP, vfwcap);
55    REGISTER_DEMUXER  (X11_GRAB_DEVICE, x11_grab_device);
56
57    /* external libraries */
58    REGISTER_DEMUXER  (LIBDC1394, libdc1394);
59}
60