Hi,

Thanks for code. It looks to work well.

I would like to generate the output filename the following way.

> anicons foo/bar.ani
> ls -l
foo/bar-0.ico
foo/bar-1.ico
foo/bar-2.ico
foo/bar-3.ico

Also ImageMagic convert use the following way to specify an output and generate multi output files.

> convert foo.ico foo.png
> ls -l
foo-0.png
foo-1.png
foo-2.png
foo-3.png

I also would like to have a way to specify the output.

Would you agree to have such patch?