[FFmpeg-devel] [PATCH] h264: don't touch H264Context->ref_count[] during MB decoding.

Clément Bœsch ubitux at gmail.com
Thu Oct 4 17:46:23 CEST 2012


On Thu, Oct 04, 2012 at 05:37:27PM +0200, Clément Bœsch wrote:
> On Thu, Oct 04, 2012 at 07:51:18AM -0700, Ronald S. Bultje wrote:
> > Hi,
> > 
> > On Oct 4, 2012 7:16 AM, "Clément Bœsch" <ubitux at gmail.com> wrote:
> > >
> > > On Thu, Oct 04, 2012 at 04:13:24PM +0200, Clément Bœsch wrote:
> > > [...]
> > > > > >      if(MB_MBAFF){
> > > > > > -        h->ref_count[0] <<= 1;
> > > > > > -        h->ref_count[1] <<= 1;
> > > > > > +        local_ref_count[0] <<= 1;
> > > > > > +        local_ref_count[1] <<= 1;
> > > > > >      }
> > > > >
> > > > > maybe
> > > > > local_ref_count[0] = h->ref_count[0] << MB_MBAFF
> > > > > is faster but otherwise whatever is fast & clean is fine with me
> > > > >
> > > >
> > > > Ah right, I'll push the attached version tomorrow unless there is an
> > > > objection then.
> > > >
> > >
> > > Derp, sent a bad draft version. Fixed.
> > 
> > Has anyone been able to test if this decreases the amount of fate failures?
> > 
> 
> It's running since a while without any failure here. We'll be sure in a
> week or two with FATE. Helgrind still complains about the state issues I
> mentioned in the other mail though.
> 

Ah. It just failed with a higer cpu load. So it looks not enough.

-- 
Clément B.
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