root@porteus:/mnt/sdb1/surv# ffplay -f v4l2 /dev/video5
ffplay version 0.10.2.git-e9d5c05 Copyright (c) 2003-2012 the FFmpeg developers
  built on Jun 23 2012 01:58:33 with gcc 4.5.2
  configuration: --disable-yasm --enable-libmp3lame
  libavutil      51. 61.100 / 51. 61.100
  libavcodec     54. 29.100 / 54. 29.100
  libavformat    54. 11.100 / 54. 11.100
  libavdevice    54.  0.100 / 54.  0.100
  libavfilter     2. 82.100 /  2. 82.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0. 15.100 /  0. 15.100
Bus error
root@porteus:/mnt/sdb1/surv#



But this works:


root@porteus:/mnt/sdb1/surv# mplayer tv:// -tv width=640:height=480:device=/dev/video5
MPlayer SVN-r34180-4.5.1 (C) 2000-2011 MPlayer Team

Playing tv://.
TV file format detected.
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: UVC Camera (046d:0825)
 Capabilities:  video capture  streaming
 supported norms:
 inputs: 0 = Camera 1;
 Current input: 0
 Current format: YUYV
v4l2: ioctl set format failed: Invalid argument
v4l2: ioctl set format failed: Invalid argument
v4l2: ioctl set format failed: Invalid argument
tv.c: norm_from_string(pal): Bogus norm parameter, setting default.
v4l2: ioctl enum norm failed: Invalid argument
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
Xlib:  extension "XFree86-VidModeExtension" missing on display "127.1:0".
Failed to open VDPAU backend libvdpau_nvidia.so: cannot open shared object file: No such file or directory
[vdpau] Error when calling vdp_device_create_x11: 1
Xlib:  extension "XVideo" missing on display "127.1:0".
[VO_XV] Sorry, Xv not supported by this X11 version/driver
[VO_XV] ******** Try with  -vo x11  or  -vo sdl  *********
==========================================================================
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 @ 0xa7134f0] BICUBIC scaler, from yuyv422 to bgra using MMX2
VO: [x11] 640x480 => 640x480 BGRA
Shared memory not supported
Reverting to normal Xlib
Selected video codec: [rawyuy2] vfm: raw (RAW YUY2)
==========================================================================
Audio: no sound
Starting playback...
v4l2: select timeout
V:   0.0 200/200 ??% ??% ??,?% 0 0
v4l2: ioctl set mute failed: Invalid argument
v4l2: 202 frames successfully processed, -127 frames dropped.

Exiting... (Quit)
root@porteus:/mnt/sdb1/surv#