OT: ImageInfo or some other tool to detect Animated Gifs.

[Greg Borders]

Duncan, Brian M. wrote:
>
> So if there was a way to detect GIF's that contain offset frames that
> would be great. (Through something like ImageInfo.pm)
I've used imagemagick's "identify"command at shell level to pull info 
out about graphics images in the past.
A quick test of an animated gif gives this result:

[root at mailbox]# identify test.gif
test.gif[0] GIF 300x300 300x300+0+0 PseudoClass 256c 8-bit 87.1406kb
test.gif[1] GIF 300x300 300x300+0+0 PseudoClass 256c 8-bit 87.1406kb
test.gif[2] GIF 300x300 300x300+0+0 PseudoClass 256c 8-bit 87.1406kb
test.gif[3] GIF 300x300 300x300+0+0 PseudoClass 256c 8-bit 87.1406kb
test.gif[4] GIF 300x300 300x300+0+0 PseudoClass 256c 8-bit 87.1406kb

Displays info about each frame.  Feed that to a wc line count and you 
get a frame count in your image:

[root at mailbox]# identify test.gif | wc -l
5

The "identify -verbose" command gives even more detailed info for adding 
to SA rules.

Hope you can use this info!

Greg. Borders
Sys. Admin.
JLC Co.

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