REGISTER_INOUTDEV   49 libavdevice/alldevices.c     REGISTER_INOUTDEV(ALSA,             alsa);
REGISTER_INOUTDEV   53 libavdevice/alldevices.c     REGISTER_INOUTDEV(DECKLINK,         decklink);
REGISTER_INOUTDEV   56 libavdevice/alldevices.c     REGISTER_INOUTDEV(FBDEV,            fbdev);
REGISTER_INOUTDEV   63 libavdevice/alldevices.c     REGISTER_INOUTDEV(OSS,              oss);
REGISTER_INOUTDEV   64 libavdevice/alldevices.c     REGISTER_INOUTDEV(PULSE,            pulse);
REGISTER_INOUTDEV   67 libavdevice/alldevices.c     REGISTER_INOUTDEV(SNDIO,            sndio);
REGISTER_INOUTDEV   68 libavdevice/alldevices.c     REGISTER_INOUTDEV(V4L2,             v4l2);