[FFmpeg-devel] MPEG-2 FLAGS2_FAST benchmarks

Michael Niedermayer michael at niedermayer.cc
Sun Jun 14 23:26:08 EEST 2020


On Sun, Jun 14, 2020 at 06:50:04PM +0100, Kieran Kunhya wrote:
> On Sun, 14 Jun 2020 at 18:47, Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:
> 
> > Am So., 14. Juni 2020 um 02:33 Uhr schrieb Kieran Kunhya <kierank at obe.tv>:
> >
> > > Logical fallacy.
> >
> > Could you please stop this?
> >
> > Apart from the personal attack, we have far too many known, reproducible
> > bugs to spend time on discussing code that you don't like (for whatever
> > reason) but fortunately don't have to maintain.
> >
> 
> The code is not maintained at all, it will produce junk chroma on anything
> that is not 4:2:0 as it has hardcoded values.
> 

> Also the speed benefits are tiny overall, sub-1%. 

This claim is not supported by the statistics you posted


> Removing it and some
> other small changes to the existing code will make the existing code run at
> the same speed.

its a long time since we had mpeg1/2 optimizations
iam very happy about this being speed up more.
If you manage to make it as fast as fast mode i surely would be happy
If you manage to make the difference shrink by half i too would be happy.
Faster decoding of mainstream codecs is a good thing. It has many
advantages ...

Thanks alot

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

it is not once nor twice but times without number that the same ideas make
their appearance in the world. -- Aristotle
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