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]
11 The \fIvidwhacker\fP program grabs an image from disk, or from the
12 system's video input, then applies random image filters to it, and
13 displays the result. The \fIvidwhacker\fP program does not terminate
16 It depends heavily on the various PBM tools (e.g.,
19 Selection of random image files is done by running the
20 .BR xscreensaver-getimage-file (1)
21 program. Capture of video frames (if requested) is done by running the
22 .BR xscreensaver-getimage-video (1)
23 program. The options of whether to do video, and which directory to
24 search for images, are specified in the \fI~/.xscreensaver\fP file.
27 accepts the following options:
30 Draw on the root window. This is the default.
36 Instead of grabbing an image from disk or video, read an image
37 to manipulate from stdin. This image must be in
39 format. The program will still perform repeated random image
40 transformations, but it will always use this one image as its starting point.
42 .B \-delay \fIseconds\fP
43 How long to sleep between images. Default 5 seconds (the actual
44 elapsed time is significantly longer, due to processing time.)
47 Instead of displaying the image on a window or on the root, write the new
48 image on stdout, and exit.
50 .B \-directory \fIdirectory\fP
51 Use this directory instead of the \fBimageDirectory\fP specified in
52 the \fI~/.xscreensaver\fP file.
55 Display the current frame rate and CPU load.
60 to get the default host and display number.
63 to get the name of a resource file that overrides the global resources
64 stored in the RESOURCE_MANAGER property.
68 It might be interesting to rewrite this to use
70 plugins instead of the pbm tools. It probably wouldn't be any faster,
71 but there would be a wider variety of effects available.
75 .BR xscreensaver-getimage-file (1),
76 .BR xscreensaver-getimage-video (1),
81 Copyright \(co 1998-2001 by Jamie Zawinski. Permission to use, copy, modify,
82 distribute, and sell this software and its documentation for any purpose is
83 hereby granted without fee, provided that the above copyright notice appear
84 in all copies and that both that copyright notice and this permission notice
85 appear in supporting documentation. No representations are made about the
86 suitability of this software for any purpose. It is provided "as is" without
87 express or implied warranty.
89 Jamie Zawinski <jwz@jwz.org>, 18-Jan-98.