FFmpeg
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alldevices.c
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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 "avdevice.h"
23 
24 #define REGISTER_OUTDEV(X, x) \
25  { \
26  extern AVOutputFormat ff_##x##_muxer; \
27  if (CONFIG_##X##_OUTDEV) \
28  av_register_output_format(&ff_##x##_muxer); \
29  }
30 
31 #define REGISTER_INDEV(X, x) \
32  { \
33  extern AVInputFormat ff_##x##_demuxer; \
34  if (CONFIG_##X##_INDEV) \
35  av_register_input_format(&ff_##x##_demuxer); \
36  }
37 
38 #define REGISTER_INOUTDEV(X, x) REGISTER_OUTDEV(X, x); REGISTER_INDEV(X, x)
39 
41 {
42  static int initialized;
43 
44  if (initialized)
45  return;
46  initialized = 1;
47 
48  /* devices */
49  REGISTER_INOUTDEV(ALSA, alsa);
50  REGISTER_INDEV (BKTR, bktr);
51  REGISTER_OUTDEV (CACA, caca);
52  REGISTER_INDEV (DSHOW, dshow);
53  REGISTER_INDEV (DV1394, dv1394);
54  REGISTER_INDEV (FBDEV, fbdev);
55  REGISTER_INDEV (IEC61883, iec61883);
56  REGISTER_INDEV (JACK, jack);
57  REGISTER_INDEV (LAVFI, lavfi);
58  REGISTER_INDEV (OPENAL, openal);
59  REGISTER_INOUTDEV(OSS, oss);
60  REGISTER_INDEV (PULSE, pulse);
61  REGISTER_OUTDEV (SDL, sdl);
62  REGISTER_INOUTDEV(SNDIO, sndio);
63  REGISTER_INDEV (V4L2, v4l2);
64 // REGISTER_INDEV (V4L, v4l
65  REGISTER_INDEV (VFWCAP, vfwcap);
66  REGISTER_INDEV (X11GRAB, x11grab);
67 
68  /* external libraries */
69  REGISTER_INDEV (LIBCDIO, libcdio);
70  REGISTER_INDEV (LIBDC1394, libdc1394);
71 }