GNOME Bugzilla – Bug 564691
APNG support
Last modified: 2018-01-08 08:45:49 UTC
APNG ( see http://animatedpng.com/ ) now has support in FF3. Although a separate user plugin may be written to allow reading and writing of APNG I can find no evidence of this happening anytime soon. APNG is an alteration to the PNG standard that allows any PNG aware client to load the first frame of the APNG as a normal PNG. That suggests to me that a simple adjustment of the PNG import plugin would allow import of APNG as seperate layers. APNG output support could then be added at a later date.
Hi! It might make sense to add APNG load support to the png load plug-in, it probably also would make sense to add APNG write support to it, but I'm not sure it makes sense to keep this bug report open. Someone needs to write the actual code, not file enhancement requests about it.
Definitely not. This can and should be done as a separate third-party plug-in.
(In reply to comment #2) > Definitely not. This can and should be done as a separate third-party plug-in. > Can you explain the reasoning behind this ?
The PNG plug-in is complex enough as it is. If you want support for APNG, then you can write your own plug-in. A dedicated plug-in can support an animated format much better than a combined one. GIMP provides everything you need to write such a plug-in. We don't keep requests for new plug-ins in our bug-tracker.
(In reply to comment #4) > The PNG plug-in is complex enough as it is. If you want support for APNG, then > you can write your own plug-in. A dedicated plug-in can support an animated > format much better than a combined one. > > GIMP provides everything you need to write such a plug-in. We don't keep > requests for new plug-ins in our bug-tracker. > OK, thanks. So my "easy" import solution idea is not that easy ? Oh well, I'm looking at the import PNG code in SVN right now and checking plugin guides.