alldevices.c
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1 /*
2  * Register all the grabbing devices.
3  *
4  * This file is part of Libav.
5  *
6  * Libav 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  * Libav 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 Libav; 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 
25 #define REGISTER_OUTDEV(X, x) \
26  { \
27  extern AVOutputFormat ff_##x##_muxer; \
28  if (CONFIG_##X##_OUTDEV) \
29  av_register_output_format(&ff_##x##_muxer); \
30  }
31 
32 #define REGISTER_INDEV(X, x) \
33  { \
34  extern AVInputFormat ff_##x##_demuxer; \
35  if (CONFIG_##X##_INDEV) \
36  av_register_input_format(&ff_##x##_demuxer); \
37  }
38 
39 #define REGISTER_INOUTDEV(X, x) REGISTER_OUTDEV(X, x); REGISTER_INDEV(X, x)
40 
42 {
43  static int initialized;
44 
45  if (initialized)
46  return;
47  initialized = 1;
48 
49  /* devices */
50  REGISTER_INOUTDEV(ALSA, alsa);
51  REGISTER_INDEV (BKTR, bktr);
52  REGISTER_INDEV (DV1394, dv1394);
53  REGISTER_INDEV (FBDEV, fbdev);
54  REGISTER_INDEV (JACK, jack);
55  REGISTER_INOUTDEV(OSS, oss);
56  REGISTER_INDEV (PULSE, pulse);
57  REGISTER_INOUTDEV(SNDIO, sndio);
58  REGISTER_INDEV (V4L2, v4l2);
59  REGISTER_INDEV (VFWCAP, vfwcap);
60  REGISTER_INDEV (X11GRAB, x11grab);
61 
62  /* external libraries */
63  REGISTER_INDEV (LIBCDIO, libcdio);
64  REGISTER_INDEV (LIBDC1394, libdc1394);
65 }