[FFmpeg-devel] [PATCH] PPC64: Add versions of functions in libswscale/input.c optimized for POWER8 VSX SIMD.

[Ronald S. Bultje]

Hi,

On Sun, Jul 10, 2016 at 5:37 PM, Michael Niedermayer <michael at niedermayer.cc
> wrote:

> On Sun, Jul 10, 2016 at 02:30:20PM -0400, Ronald S. Bultje wrote:
> > Hi,
> >
> > On Sun, Jul 10, 2016 at 1:25 PM, Michael Niedermayer
> <michael at niedermayer.cc
> > > wrote:
> >
> > > It could be reverted, it could be left for the next developer to use
> > > as starting point, i have no oppinion on this.
> >
> >
> > So, I want to comment on this specifically: I don't think it can.
> >
> > I don't specifically mean that it's too slow, although that's a reason by
> > itself. The _specific_ reason I don't think it should be used as a basis
> > for really anything is that we _do not know what it does_. We don't know
> if
> > it uses simd instructions for the scalar operants (+=, *=, etc.) and
> there
> > is no way for us to verify other than actually understanding the complete
> > problem space.
>
> If you want to revert the patch, please revert the patch


Reverted.

Ronald