[FFmpeg-devel] [PATCH]avfilter: add Intel IPP library based x86 optimized video scaling filter

[Hendrik Leppkes]

On Tue, May 25, 2021 at 4:27 PM Gyan Doshi <ffmpeg at gyani.pro> wrote:
>
>
>
> On 2021-05-25 18:40, Nicolas George wrote:
> > Zhislina, Victoria (12021-05-25):
> >> While you are right that IPP is not GPL based and is closed source
> >> currently (but free for any commercial usage) and therefore does
> >> require --enable-nonfree,
> >> I'm sorry to mention that you are not right about "doing the same but
> >> faster". If you read my commit message you could see that it:
> >> Introduces superscaling interpolation method for video downscale.
> >> Adds antialiasing option to linear, cubic and lanczos interpolation.
> >>
> >> Moreover, IPP has 100-s of functions that could be added to ffmeg processing in the future.
> >> One more thing to mention - when you say "one single platform" it is
> >> x86 that undoubtedly covers top part of video processing market. Such
> >> filter creation request comes from one of the top ISVs in this market.
> > So, are you working on getting this library GPL-compatible? Notify us
> > once it's done.
> >
> > But there is no way we will accept code for a non-libre library coming
> > from the company that made the library in the first place. That would be
> > allowing freeloaders.
>
> Put it to a vote instead of one or a few developers declaring it NAK.
>

No developer has even proposed an actual counter argument yet (except
the submitter, of course), so there hasn't even been disagreement,
which would be the basis for a vote.

External libraries should be put under extra scrutiny, because in many
cases they don't necessarily serve the project - perhaps even the
opposite as it can slow down work on the native component in favor of
the external one being used.
This can have the effect that such a contribution does not benefit
FFmpeg in the long run, and only benefits the (paying) customers of
company X that requested the inclusion.

- Hendrik