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

Michael Niedermayer michael at niedermayer.cc
Mon Jul 11 00:37:44 EEST 2016

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


Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

During times of universal deceit, telling the truth becomes a
revolutionary act. -- George Orwell
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