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Hej there.
I'm using $Image.SetWidth(...) to resize images inside the template (various sizes for responsive design).
The problem is, that only the first frame of the animated gif comes back. Is there any setting or workaround to avoid this, so that the whole animated gif is given back?
Thanks in advance!
Cheers, Mario
SilverStripe uses GD to resize images, and it doesn't seem to support animated gifs.
Just thinking... One thing that has come up before is that SilverStripe will resize the image, even if the original image already has the required size. I'm not 100% sure but I think that is still the case, but if so, there is a very old post here: http://www.silverstripe.org/community/forums/archive/show/1200. Note: the current function has changed somewhat., but the idea still stands. So this behaviour could be overruled by extending Image and overriding the cachedFile function...
Hm, that's bad. How to make a image responsive then?
Right now, I use srcset with different images generated via $Image.SetWidth() and a Polyfill. But when animated GIFs are not supported, this solution won't work.
Anyone any ideas?
I guess you'd have to create multiple sized files up front, and skip the setWidth. At this point I just don't think you can generate resized animated GIFs on the fly out of the box...
There seems to be an imagick backend available in silverstripe, for which you need to have imagick installed. I have no experience with it, but it should be able to resize animated GIFs (http://php.net/manual/en/imagick.coalesceimages.php). Maybe someone else..?
