[FFmpeg-devel] [PATCH 0/2] Interpolation filter using nvidia OFFRUC Library

[Dennis Mungai]

On Tue, 3 Jan 2023 at 03:13, Philip Langdale <philipl at overt.org> wrote:

> On Tue, 3 Jan 2023 02:39:19 +0300
> Dennis Mungai <dmngaie at gmail.com> wrote:
>
> > Related,
> >
> > If this were to be implemented in mpv, can libplacebo pick up this
> > feature spec as a filter in ffmpeg? Perhaps that would make such a
> > feature easier to merge down the line, instead of re-implementing it
> > directly in ffmpeg as an additional filter.
> >
> > Adding Niklaas to the thread.
>
> It doesn't make a difference. The licensing is fundamentally unusable
> for an open-source project (and there are engineers at nvidia who know
> this and wish they could write filters leveraging all their various
> capabilities). The only thing with any nuance is what level of
> `nonfree` a project is willing to have sitting in their repo. Most
> projects (including mpv and libplacebo) would say "none", because it's
> not worth the trouble. ffmpeg has gone back and forth on what exact
> critera have to be met to qualify as mergeable vs unmergeable nonfree.
> In the past we have accepted filters based around nvidia libraries with
> prohibitive licensing - see the libnpp based filters, but I don't think
> we have the appetite for that now. If we were to decide that this
> filter was ok on that basis, I'd merge it, but honestly, the usability
> benefit of it being in master is tiny vs all the other hoops you have
> to jump through.
>
> Anyway - punchline: it is not easier to get this kind of thing merged
> into other projects.
>
> --phil
>

Got it, thanks for the clarifications.