$ v4l2-ctl --list-formats-ext $ gst-launch-1.0 v4l2src ! video/x-raw,width=640,height=480,framerate=15/2 ! videoconvert ! ximagesink
ScreencastがLinuxで出来る。 音声は??
gst-launch-1.0 v4l2src device=/dev/video0 do-timestamp=1 ! video/x-raw,format=I420,width=800,height=600,framerate=30/1 videoconvert ! ximagesink sync=false
fswebcam -r 800x600 -S 15 ./video0.jpg