Record webcam video

vlc v4l2:// :v4l2-dev=/dev/video0 :v4l2-width=320 :v4l2-height=240  --sout '#transcode{vcodec=mp4v,vb=3072,scale=1,acodec=mpga,ab=192,channels=2}:duplicate{dst=display,dst=std{access=file,mux=mp4,dst="/tmp/test.mpg"}}'

Webcam is typically /dev/video0 in linux