Gif Animation Not working

Um? Can you link to what you are talking about? Please describe the issue.
GD doesn't support animation, so it's not within our control. I believe imagemagick can though, though you may get all sorts of different results.

A custom action looks like your single option (within the context of image styles). However the return value is not used by Drupal core to stop applying the subsequent effects within the image style.

Perhaps a custom field formatter that decides on what image style (if any) to use could be easier. Just let it select the image style based on file extension and/or other meta data like if it is an animation (if that can be easily extracted.

It's not impossible to do a "split to subroutine" based on filetype, like aspect switcher does.
But for now, a customaction would be able to do that.
It could mean adding a "no further processing" option to the list of subroutines - which would be generically useful.

... Next thing you know we'll be incorporating 'Rules' support there :-}

Is this issue still relevant?

If so, can you please explain once more what exactly your problem is?

If not, please close the issue.

Closing this issue, assuming that the answer was satisfactorily for OP. If not feel free to reopen this issue by stating your request more explicitly.

I'm having the same issue, the Git doesn't work after resizing and watermarking. I tried to use ImageMagic toolkit but no luck any insight to fix this would be great. Thanks.

@heshan.lk it would help if you added more information about what you have tried, and especially what systems you are using if you want more ideas than have already been discussed here.

GD will not work. It's just not available in the library.
ImageMagick probably should, but you may need to add extra processing flags to it.

You should

1. enable debugging with the imagemagick toolkit
2. review the commandline it runs
3. try running that commandline yourself and verify if it damages gifs when run independently
4. look to the imagemagick help documentation to find if there is a known flag or something you need to add
5. figure out a working commandline through reading imagemagic docs
6. try adding the extra flag through imagecache_actions customaction
7. report back here

If you find that your version of imagemagick does NOT do gif resizing, then you are out of luck entirely. Maybe try GraphicsMagick

Watermarking an animated GIF is possible with ImageMagick, but you need a version that is not stone age:
http://stackoverflow.com/questions/10531514/watermark-on-animated-gif-wi...

I guess this has been solved by now. Feel free to reopen if not, adding any additional info possible.