[FFmpeg-devel] [PATCH 3/4] ituh263dec: Optimize new RL_VLC based decoding.

[Michael Niedermayer]

On Sun, Aug 31, 2014 at 08:06:54PM +0200, Reimar Döffinger wrote:
> On Sun, Aug 31, 2014 at 07:09:13PM +0200, Michael Niedermayer wrote:
> > On Sun, Aug 31, 2014 at 04:48:43PM +0200, Reimar Döffinger wrote:
> > > @@ -549,11 +549,8 @@ retry:
> > >              av_log(s->avctx, AV_LOG_ERROR, "run overflow at %dx%d i:%d\n", s->mb_x, s->mb_y, s->mb_intra);
> > >              return -1;
> > >          }
> > > -        j = scan_table[i];
> > > +        j = scan_table[i-1];
> > 
> > the - 1 feels avoidable
> 
> I have no good idea how so far.

cant i be offset at entry & exit of the loop ?
or
scan_table be offset by -1 ?

anyway not really important, its faster as is than before so this is
maybe better in a seperate later patch


> Note that it is not really an extra cost: we save on a i++ at this place
> exchange...
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-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

No snowflake in an avalanche ever feels responsible. -- Voltaire
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