On Sat, Feb 25, 2023 at 10:20 AM Sandro <lists(a)penguinpee.nl>
wrote:
>
> Greetings everyone,
>
> TL;DR
> Will there be AVIF (AV1) support for applications using libheif in
> Fedora?
>
> A while ago I stumbled upon AVIF files not being supported by
> applications (gThumb, ImageMagick, GIMP) in Fedora [1].
>
> It appears that the applications mentioned have switched to libheif
> for
> AVIF support in favor of libavif. Since libheif also
> provides/requires
> patent encumbered libraries/codecs (libde265) related to HEIF it is
> provided by RPMFusion.
>
> AVIF, however, is not encumbered by patents as I understand it [2].
> So
> it seems we need a compatibility libheif-av1 or the like to allow
> applications provided by fedora repos to enable AVIF (AV1) support
> using
> libheif [3].
>
> I found two threads ([4],[5]) in the archives regarding HEIF and
> AVIF.
> But none of them are conclusive with regards to enabling AVIF
> support.
>
> Are there any plans to enable AVIF support in applications that use
> libheif as their provider? If so, where can I find information
> regarding
> the status?
>
> I apologize in advance if any of the above is not entirely correct
> (or
> entirely incorrect). Aim of my message is to better understand why
> support for AVIF is lacking in some applications and if that can be
> fixed.
>
> [1]
https://bugzilla.redhat.com/show_bug.cgi?id=2165606
> [2]
https://bugzilla.redhat.com/show_bug.cgi?id=2164329#c3
> [3] This part is not entirely clear to me. Please correct me.
> [4]
>
https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.o...
> [5]
>
https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.o...
>
It looks like libheif now supports a plugin architecture, so we could
move libheif to Fedora, while having the HEVC/H.265 backend plugin in
RPM Fusion.
Also, according to the CMake, the HEVC/H.265 plugins are not built by
default anymore:
https://github.com/strukturag/libheif/blob/cdcc5b210879e0a0348032a594f8be...
So feel free to package it and bring it into Fedora. :)
So we can build libheif without H.265 on Fedora but how you propose
make H.265 available with one third repo ? just build the plugin on
third repo as a freeworld package ?
Thanks
--
真実はいつも一つ!/ Always, there's only one truth!
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