1 .TH XScreenSaver 1 "17-Jun-99" "X Version 11"
3 vidwhacker - grab images and apply random filters to them
6 [\-display \fIhost:display.screen\fP] [\-root] [\-verbose]
7 [\-stdin] [\-stdout] [\-delay seconds]
8 [-directory \fIdirectory\fP]
10 The \fIvidwhacker\fP program grabs an image from disk, or from the
11 system's video input, then applies random image filters to it, and
12 displays the result. The \fIvidwhacker\fP program does not terminate
15 It depends heavily on the various PBM tools (e.g.,
18 Selection of random image files is done by running the
19 .BR xscreensaver-getimage-file (1)
20 program. Capture of video frames (if requested) is done by running the
21 .BR xscreensaver-getimage-video (1)
22 program. The options of whether to do video, and which directory to
23 search for images, are specified in the \fI~/.xscreensaver\fP file.
26 accepts the following options:
29 Draw on the root window. This is the default.
35 Instead of grabbing an image from disk or video, read an image
36 to maniupulate from stdin. This image must be in
38 format. The program will still perform repeated random image
39 transformations, but it will always use this one image as its starting point.
41 .B \-delay \fIseconds\fP
42 How long to sleep between images. Default 5 seconds (the actual
43 elapsed time is significantly longer, due to processing time.)
46 Instead of displaying the image on a window or on the root, write the new
47 image on stdout, and exit.
49 .B \-directory \fIdirectory\fP
50 Use this directory instead of the \fBimageDirectory\fP specified in
51 the \fI~/.xscreensaver\fP file.
56 to get the default host and display number.
59 to get the name of a resource file that overrides the global resources
60 stored in the RESOURCE_MANAGER property.
64 It might be interesting to rewrite this to use
66 plugins instead of the pbm tools. It probably wouldn't be any faster,
67 but there would be a wider variety of effects available.
71 .BR xscreensaver-getimage-file (1),
72 .BR xscreensaver-getimage-video (1),
77 Copyright \(co 1998-2001 by Jamie Zawinski. Permission to use, copy, modify,
78 distribute, and sell this software and its documentation for any purpose is
79 hereby granted without fee, provided that the above copyright notice appear
80 in all copies and that both that copyright notice and this permission notice
81 appear in supporting documentation. No representations are made about the
82 suitability of this software for any purpose. It is provided "as is" without
83 express or implied warranty.
85 Jamie Zawinski <jwz@jwz.org>, 18-Jan-98.