#16 APNG support

[Rene Leonhardt]

Andrew Smith made a great APNG Google Summer of Code contribution and continued to catch up his patch with the latest libpng releases.

As greater APNG support by Firefox 3 and Opera 9.5 is emerging it would be great to give all tools using libpng the possibility to support APNG as well by testing and integrating his patch.

http://littlesvr.ca/apng/

Best regards
René

[Glenn Randers-Pehrson]

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no

[Rene Leonhardt]

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Thanks for the info... everything is fine as long as APNG support is already in the official Firefox release.
Maybe MNG will reach that goal in less then another 5 years...

[Glenn Randers-Pehrson]

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For what it's worth, I'm the one who is keeping the mozilla APNG patch in sync with libpng
releases. For the latest developments in MNG, see the anipng and PLAY/RECO proposals at
ftp://ftp.simplesystems.org/pub/png-group/documents

Glenn

[coleman kane]

Hi, I'd just like to comment really quick on the APNG support. It seems to me that it is a reimplementation of functionality already solved by the MNG format. Why didn't the mozilla team actually just use/update libmng instead of patching libpng and pushing this new "APNG Standard", drafted by a few other developers?

That said, I tried building Thunderbird 3 against my system's libpng and found that the APNG support is a requirement. So I went out and found the newest patch (1.2.29) that I could find, and updated it to match my version (1.2.33) of libpng.

I've got this patch uploaded at the following place:
* http://people.freebsd.org/~cokane/patches/libpng-apng.patch

It would probably become helpful to many people's sanity if this were to just make it into libpng, rather than attempt to manage a separate patch forever. This is especially true if the mozilla-backed APNG becomes a "fork" of the original lib.

[Quentin "Sardem FF7" Glidic]

Is there any news here?

*Many* web developers would appreciate in this support as Chrome/Safari would probably support APNG in case of merge.

Actually, APNG is not as much useful as we can think, but some usages are, like a little loader image, or a rapid logo animation. APNG just fits these needs with simplicity.

Is there any /good/ reasons to reject it now?

[Anonymous]

Webkit developers need the support of apng in libpng.
Web developers need support of apng in major browsers to yse it instead of shitty gif.
http://sourceforge.net/tracker/index.php?func=detail&aid=1799624&group_id=5624&atid=355624