DESCRIPTION

Usage:

utils/v4l2loopback-ctl [command] [args]

Commands:

set-fps <FPS> ,/dev/videoX/

Set device fps (if format is already negotiated).

set-timeout-image <IMAGE> ,/dev/videoX/

Set timeout on device, and optionally the placeholder picture, instead of default null frame.

set-caps <CAPS> ,/dev/videoX/

Fix format for the device (using GStreamer caps), so it will be maintained until reset, regardless of future readers/writers.

OPTIONS

FPS

frames per second, either as integer ('30') or fraction ('50/2')

IMAGE

image file ("no-input.png"), or 'videotestsrc'

CAPS

GStreamer caps ("video/x-raw-yuv, width=640, height=480"), or 'any'

,/dev/videoX/

the v4l2-loopback device file you want to act on

COPYRIGHT

Copyright © 2012 IOhannes m zmoelnig <[email protected]>
Copyright © 2012 Anton Novikov ([email protected])