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PROGRAM:

NAME


v4l2loopback-ctl - control v4l2 loopback devices

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])

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