$ gst-launch-0.10 v4l2src ! ffmpegcolorspace ! ximagesink
Setting pipeline to PAUSED ...
ERROR: Pipeline doesn't want to pause.
ERROR: from element /pipeline0/v4l2src0: Could not get/set settings from/on resource.
Additional debug info:
v4l2_calls.c(222): gst_v4l2_fill_lists (): /pipeline0/v4l2src0:
Failed to get 134217730 in control enumeration for /dev/video0: Input/output error
Setting pipeline to NULL ...
FREEING pipeline ...