xscreensaver-getimage-video man page
xscreensaver-getimage-video — put a video frame on the root window
xscreensaver-getimage-video [-display host:display.screen] [--verbose] [--stdout]
The xscreensaver-getimage-video program is a helper program for the xscreensaver hacks that manipulate images. Specifically, it is invoked by xscreensaver-getimage(1) as needed. This is not a user-level command.
This program grabs a random frame of video from the system's video input, and then loads it on the root window. It does this by figuring out which frame-grabbing programs are installed on the system, and invoking the first one it finds. Then it runs xscreensaver-getimage-file(1) to load that image onto the root window.
xscreensaver-getimage-video accepts the following options:
Instead of loading the image onto the root window, write it to stdout as a PBM file.
X(1), xscreensaver(1), xscreensaver-demo(1), xscreensaver-getimage(1), xscreensaver-getimage-file(1), bttvgrab(1), qcam(1), streamer(1), atitv(1), vidtomem(1)
Copyright © 2001 by Jamie Zawinski. Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation. No representations are made about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty.
Jamie Zawinski <firstname.lastname@example.org>, 14-Apr-01