ftp://ftp.smr.ru/pub/0/FreeBSD/releases/distfiles/xscreensaver-3.16.tar.gz

[xscreensaver] / local / man / man.1 / vidwhacker.1

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-.TH XScreenSaver 1 "17-Jun-99" "X Version 11"
-.SH NAME
-vidwhacker - grab images and apply random filters to them
-.SH SYNOPSIS
-.B vidwhacker
-[\-display \fIhost:display.screen\fP] [\-root] [\-window] [\-verbose] [\-stdin] [\-stdout] [\-delay seconds]
-.SH DESCRIPTION
-The \fIvidwhacker\fP program grabs a image from the system's video input,
-applies random image filters to it, and displays the result.  
-The \fIvidwhacker\fP program does not terminate until killed.
-It depends heavily on
-.BR xv (1)
-and the various PBM tools
-(e.g.,
-.BR ppmrelief (1).)
-.SH OPTIONS
-.I vidwhacker
-accepts the following options:
-.TP 8
-.B \-root
-Draw on the root window.
-.TP 8
-.B \-window
-Pop up a new window displaying the image.  When a new image has been fully
-processed, destroy that window and pop up a new one.  This is the default.
-.TP 8
-.B \-verbose
-Print diagnostics.
-.TP 8
-.B \-stdin
-Instead of grabbing an image from the system's video input, read an image
-to maniupulate from stdin.  This image must be in 
-.TP 8
-.B \-delay \fIseconds\fP
-How long to sleep between images.  Default 3 seconds (the actual
-elapsed time is significantly longer, due to processing time.)
-.BR ppm (5)
-format.  The program will still perform repeated random image 
-transformations, but it will always use this one image as its starting point.
-.TP 8
-.B \-stdout
-Instead of displaying the image on a window or on the root, write the new
-image on stdout, and exit.
-.SH ENVIRONMENT
-.PP
-.TP 8
-.B DISPLAY
-to get the default host and display number.
-.TP 8
-.B XENVIRONMENT
-to get the name of a resource file that overrides the global resources
-stored in the RESOURCE_MANAGER property.
-.SH BUGS
-Grabbing video images is, of course, very system-dependent.  It works
-on SGIs, and on Linux systems that have the
-.BR qcam (1)
-program.  If your system does things differently, you'll need to edit
-the vidwhacker script (look for the \fIgrab()\fP function.)
-
-It's slow.
-.SH TO DO
-It might be interesting to rewrite this to use
-.BR gimp (1)
-plugins instead of the pbm tools.  It probably wouldn't be any faster,
-but there would be a wider variety of effects available.
-.SH SEE ALSO
-.BR X (1),
-.BR xscreensaver (1),
-.BR xv (1),
-.BR ppmtogif (1),
-.BR cjpeg (1)
-.SH COPYRIGHT
-Copyright \(co 1998, 1999 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.
-.SH AUTHOR
-Jamie Zawinski <jwz@jwz.org>, 18-Jan-98.