[FFmpeg-devel] MPEG-2 FLAGS2_FAST benchmarks

[Michael Niedermayer]

On Sun, Jun 14, 2020 at 06:32:31PM +0100, Kieran Kunhya wrote:
> On Sun, 14 Jun 2020 at 17:32, Michael Niedermayer <michael at niedermayer.cc>
> wrote:
> 
> > On Sun, Jun 14, 2020 at 05:05:35PM +0100, Kieran Kunhya wrote:
> > > In addition here are results when precomputing the quant tables:
> > >
> > > Precalculated
> > > 6439
> > > 6424
> > > 6407
> > > 6436
> > > 6437
> > > Mean 6428.6
> > > Stdev 13.42758355
> >
> > does that work on a wider range of videos and CPUs ?
> > from what i remember really long ago, that codecs which change the QP
> > alot between MBs might need too much data cache on some CPUs for this
> > to be faster.
> > But time has passed and the environment changed so maybe this is better
> > now.
> >
> > But either way, great work!
> > please submit a patch for this if it is consistently better or equal
> >
> 
> These benchmarks include the removal of FAST mode...

sure, just post the patches, ill integrate them if they are faster

Thanks


[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Those who are too smart to engage in politics are punished by being
governed by those who are dumber. -- Plato 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 195 bytes
Desc: not available
URL: <https://ffmpeg.org/pipermail/ffmpeg-devel/attachments/20200614/71d94c55/attachment.sig>