root@beaglebone:~# mplayer tv:// -tv driver=v4l2:width=320:height=240
MPlayer2 2.0-379-ge3f5043 (C) 2000-2011 MPlayer Team

Playing tv://.
Detected file format: TV
Selected driver: v4l2
 name: Video 4 Linux 2 input
 author: Martin Olschewski <olschewski@zpr.uni-koeln.de>
 comment: first try, more to come ;-)
v4l2: your device driver does not support VIDIOC_G_STD ioctl, VIDIOC_G_PARM was used instead.
Selected device: Lite Array USB2.0  Camera
 Capabilities:  video capture  streaming
 supported norms:
 inputs: 0 = Camera 1;
 Current input: 0
 Current format: YUYV
tv.c: norm_from_string(pal): Bogus norm parameter, setting default.
v4l2: ioctl enum norm failed: Inappropriate ioctl for device
Error: Cannot set norm!
Selected input hasn't got a tuner!
v4l2: ioctl set mute failed: Invalid argument
v4l2: ioctl query control failed: Invalid argument
vo: couldn't open the X11 display ()!
vo: couldn't open the X11 display ()!
VO XOverlay need a subdriver
[VO_SDL] SDL initialization failed: No available video device.
Opening video filter: [scale]
[ass] auto-open
Fontconfig error: Cannot load default config file
[ass] No usable fontconfig configuration file found, using fallback.
Fontconfig error: Cannot load default config file
Fontconfig error: Cannot load default config file
[ass] No usable fontconfig configuration file found, using fallback.
Fontconfig error: Cannot load default config file
==========================================================================
Opening video decoder: [raw] RAW Uncompressed Video
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
Movie-Aspect is undefined - no prescaling applied.
[swscaler @ 0xb5fe9538]using unscaled yuyv422 -> yuv420p special converter
[swscaler @ 0xb5fe9538]No accelerated colorspace conversion found from yuv420p to rgb565le.
VO: [fbdev] 320x240 => 320x240 BGR 16-bit
Can't put VSCREENINFO: Invalid argument
FATAL: Cannot initialize video driver.
VDecoder init failed :(
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffrawyuy2] vfm: ffmpeg (RAW YUY2)
==========================================================================
Audio: no sound
Starting playback...
Movie-Aspect is undefined - no prescaling applied.
[swscaler @ 0xb5fe9538]No accelerated colorspace conversion found from yuv420p to rgb565le.
VO: [fbdev] 320x240 => 320x240 BGR 16-bit
Can't put VSCREENINFO: Invalid argument
FATAL: Cannot initialize video driver.

FATAL: Could not initialize video filters (-vf) or video output (-vo).

v4l2: ioctl set mute failed: Invalid argument
v4l2: 3 frames successfully processed, 3 frames dropped.


MPlayer interrupted by signal 6 in module: unknown
- MPlayer crashed. This shouldn't happen.
  It can be a bug in the MPlayer code _or_ in your drivers _or_ in your
  gcc version. If you think it's MPlayer's fault, please read
  DOCS/HTML/en/bugreports.html and follow the instructions there. We can't and
  won't help unless you provide this information when reporting a possible bug.
root@beaglebone:~# [  412.037695] usb 1-1: USB disconnect, device number 2
[  412.274424] usb 1-1: new high-speed USB device number 3 using musb-hdrc
[  412.416590] usb 1-1: New USB device found, idVendor=0ac8, idProduct=3460
[  412.423656] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[  412.431115] usb 1-1: Product: Vimicro USB 2.0 PC Camera (Venus)
[  412.437312] usb 1-1: Manufacturer: Vimicro
[  412.454849] uvcvideo: Found UVC 1.00 device Vimicro USB 2.0 PC Camera (Venus) (0ac8:3460)
[  412.481729] uvcvideo: No streaming interface found for terminal 3.
[  412.502861] input: Vimicro USB 2.0 PC Camera (Venu as /devices/ocp.3/47400000.usb/musb-hdrc.1.auto/us2