AFNI program: whirlgif
Output of -help
whirlgif Rev 1.00 (C) 1996 by Kevin Kadow
(C) 1991,1992 by Mark Podlipec
whirlgif is a quick program that reads a series of GIF files, and produces
a single gif file composed of those images.
Usage: whirlgif [-v] [-trans index ] [-time delay] [-o outfile]
[-loop] [-i incfile] file1 [ -time delay] file2
options:
-v verbose mode
-loop [count] add the Netscape 'loop' extension.
-time delay inter-frame timing.
-trans index set the colormap index 'index' to be transparent
-o outfile write the results to 'outfile'
-i incfile read a list of names from 'incfile'
TIPS
If you don't specify an output file, the GIF will be sent to stdout. This is
a good thing if you're using this in a CGI script, a very bad thing if you
run this from a terminal and forget to redirect stdout.
The output file (if any) and -loop _MUST_ be specified before any gif images.
You can specify several delay statements on the command line to change
the delay between images in the middle of an animation, e.g.
whirlgif -time 5 a.gif b.gif c.gif -time 100 d.gif -time 5 e.gif f.gif
Although it's generally considered to be evil, you can also specify
several transparency statements on the command line, to change the transparent
color in the middle of an animation. This may cause problems for some programs.
BUGS
+ The loop 'count' is ineffective because Netspcape always loops infinitely.
+ Should be able to specify delay in an 'incfile' list (see next bug).
+ Does not handle filenames starting with a - (hypen), except in 'incfile'.
This program is (possibly) available from:
http://web.mit.edu/javalib/working/animated-gifs/whirlgif/whirlgif.newdoc
https://www.freshports.org/graphics/whirlgif/
-------------------------------------------------------------------
Kevin Kadow kadokev@msg.net
Based on 'txtmerge' written by:
Mark Podlipec podlipec@wellfleet.com
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Tue Apr 23 20:37:58 EDT 2024