/*
  * Register all the grabbing devices.
  *
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
  * FFmpeg is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */

 #include "config.h"

 #include "avdevice.h"

 #define REGISTER_OUTDEV(X,x) { \

           extern AVOutputFormat ff_##x##_muxer; \
           if(CONFIG_##X##_OUTDEV)  av_register_output_format(&ff_##x##_muxer); }

 #define REGISTER_INDEV(X,x) { \

           extern AVInputFormat ff_##x##_demuxer; \
           if(CONFIG_##X##_INDEV)   av_register_input_format(&ff_##x##_demuxer); }

 #define REGISTER_INOUTDEV(X,x)  REGISTER_OUTDEV(X,x); REGISTER_INDEV(X,x)

 
 void avdevice_register_all(void)
 {

     static int initialized;

     if (initialized)

         return;

     initialized = 1;

 
     /* devices */

     REGISTER_INOUTDEV (ALSA, alsa);
     REGISTER_INDEV    (BKTR, bktr);

     REGISTER_INDEV    (DSHOW, dshow);

     REGISTER_INDEV    (DV1394, dv1394);

     REGISTER_INDEV    (FBDEV, fbdev);

     REGISTER_INDEV    (JACK, jack);
     REGISTER_INOUTDEV (OSS, oss);

     REGISTER_OUTDEV   (SDL, sdl);

     REGISTER_INOUTDEV (SNDIO, sndio);

     REGISTER_INDEV    (V4L2, v4l2);

 #if FF_API_V4L

     REGISTER_INDEV    (V4L, v4l);

 #endif

     REGISTER_INDEV    (VFWCAP, vfwcap);
     REGISTER_INDEV    (X11_GRAB_DEVICE, x11_grab_device);

 
     /* external libraries */

     REGISTER_INDEV    (LIBDC1394, libdc1394);

 }