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.
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'.
Needs better documentation.
Only save colormaps that are different from preceeding ones.
have an option that compares current image with previous and then only save the smallest rectangle that encompasses changes. I need sample code- the most efficient algorithms are patented?
option for luma sorting of colormaps
define extension block in order to have frame lists.
This program is available from
http://www.msg.net/utility/whirlgif/
V2.01 Kevin Kadow kadokev@msg.net
Based on 'txtmerge' written by:
Mark Podlipec podlipec@wellfleet.com
Man Page by Mintak Ng <mintak@hitak.com>