Plans to support AV1 video codec?

[Aaron Boxer]

On Mon, Jun 26, 2017 at 1:14 AM, Sean DuBois <sean at siobud.com> wrote:

> On Sun, Jun 25, 2017 at 11:12:18PM -0400, Aaron Boxer wrote:
> > On Sun, Jun 25, 2017 at 12:53 PM, Sebastian Dröge <
> sebastian at centricular.com
> > > wrote:
> >
> > > On Sun, 2017-06-25 at 08:45 -0400, Aaron Boxer wrote:
> > > > The sad thing about this new codec is that after the inventor of part
> > > > of the encoder helped
> > > > Google for 3 years to integrate his algorithm with AV1, they are now
> > > > trying to patent his invention:
> > > >
> > > > https://news.ycombinator.com/item?id=14583691
> > >
> > > AFAIU that says that Google applied for a patent. So this generally
> > > needs more context to say anything, but keep in mind that Google also
> > > supposedly owns patents related to VP8/9/10 (which it got together with
> > > On2 back then), but it grants a free (etc) patent license for every use
> > > (see the libvpx license for details/accurate wording). In theory for
> > > AV1 this could also be for defensive measures. Who knows? They should
> > > really clarify that somewhere though.
> > >
> > > However I doubt that they plan to make AV1 useless (could as well use
> > > HEVC then) considering how much time and effort they put into it.
> > >
> >
> > Yes, most likely defensive. But, defensive or not, a patent shouldn't be
> > granted
> > if there is prior art, of which there seems to be plenty. Hopefully USPTO
> > will see the folly of their ways :)
> >
> >
> >
> >
> >
> >
> > >
> > > --
> > > Sebastian Dröge, Centricular Ltd · http://www.centricular.com
> > >
> > > _______________________________________________
> > > gstreamer-devel mailing list
> > > gstreamer-devel at lists.freedesktop.org
> > > https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
> > >
> > >
>
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>


Hi Sean,


I would love to take this on! I have only written very small patches
> that have been committed, but have a bunch of elements that I wrote that
> haven't been shared.
>
> Does anyone have any recommendations for something I should use for
> inspiration? vp8enc is in good, and maybe simpler then vp9enc?
>

Awesome! Here is the bugzilla issue:
https://bugzilla.gnome.org/show_bug.cgi?id=784160

And here is my very preliminary start to the patch, based on vp9:

https://github.com/GrokImageCompression/gst-plugins-base/tree/784160-av1
https://github.com/GrokImageCompression/gst-plugins-good/tree/784160-av1

You can fork these, or start from scratch, as you wish.

Cheers,
Aaron
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