====== V-Stream USB Video Capture ======

===== Capture Command =====

  mencoder -ffourcc XVID -oac lavc -ovc lavc \
    -lavcopts codec=mpeg4:mv0:trell:v4mv:vbitrate=3000:ildct:aspect=4/3:acodec=mp2 \
    -tv driver=v4l2:norm=pal:input=2:adevice=/dev/dsp:width=640:height=480 \
    -o test.avi tv://

===== Live View Command =====

  mplayer -tv driver=v4l2:norm=pal:input=2:adevice=/dev/dsp:width=640:height=480 tv://

===== Kernel Driver =====

em28xx

===== Kernel Log =====

  Linux video capture interface: v2.00
  em28xx v4l2 driver version 0.0.1 loaded
  em28xx new video device (eb1a:2820): interface 0, class 255
  em28xx #0: Alternate settings: 8
  em28xx #0: Alternate setting 0, max size= 0
  em28xx #0: Alternate setting 1, max size= 1024
  em28xx #0: Alternate setting 2, max size= 1448
  em28xx #0: Alternate setting 3, max size= 2048
  em28xx #0: Alternate setting 4, max size= 2304
  em28xx #0: Alternate setting 5, max size= 2580
  em28xx #0: Alternate setting 6, max size= 2892
  em28xx #0: Alternate setting 7, max size= 3072
  saa7115 2-0025: saa7113 found @ 0x4a (em28xx #0)
  registered VBI
  em28xx #0: V4L2 device registered as /dev/video0 and /dev/vbi0
  em28xx #0: Found MSI VOX USB 2.0
  usbcore: registered new driver em28xx