libavdevice/alldevices.c

   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
  25 unsigned avdevice_version(void)
  26 {
  27     return LIBAVDEVICE_VERSION_INT;
  28 }
  29
  30 #define REGISTER_OUTDEV(X,x) { \
  31           extern AVOutputFormat x##_muxer; \
  32           if(CONFIG_##X##_OUTDEV)  av_register_output_format(&x##_muxer); }
  33 #define REGISTER_INDEV(X,x) { \
  34           extern AVInputFormat x##_demuxer; \
  35           if(CONFIG_##X##_INDEV)   av_register_input_format(&x##_demuxer); }
  36 #define REGISTER_INOUTDEV(X,x)  REGISTER_OUTDEV(X,x); REGISTER_INDEV(X,x)
  37
  38 void avdevice_register_all(void)
  39 {
  40     static int initialized;
  41
  42     if (initialized)
  43         return;
  44     initialized = 1;
  45
  46     /* devices */
  47     REGISTER_INOUTDEV (ALSA, alsa);
  48     REGISTER_INOUTDEV (AUDIO_BEOS, audio_beos);
  49     REGISTER_INDEV    (BKTR, bktr);
  50     REGISTER_INDEV    (DV1394, dv1394);
  51     REGISTER_INDEV    (JACK, jack);
  52     REGISTER_INOUTDEV (OSS, oss);
  53     REGISTER_INDEV    (V4L2, v4l2);
  54     REGISTER_INDEV    (V4L, v4l);
  55     REGISTER_INDEV    (VFWCAP, vfwcap);
  56     REGISTER_INDEV    (X11_GRAB_DEVICE, x11_grab_device);
  57
  58     /* external libraries */
  59     REGISTER_INDEV    (LIBDC1394, libdc1394);
  60 }