[FFmpeg-devel] dealing with tables in DV codec

Roman V. Shaposhnik rvs
Thu Sep 11 04:29:31 CEST 2008

On Thu, 2008-09-11 at 02:02 +0200, Stefan de Konink wrote:
> > It's a binary codec for DV that MPlayer can use.  It performs up to 50%
> > better than FFmpeg on some samples.  Not on all samples though, for a
> > few FFmpeg is slightly faster, but most of the time qdv wins by a
> > considerable and sometimes even huge margin.  Just try all DV samples
> > from the MPlayer collection.
> Could it be they have implemented partial 'caching' of motionless
> blocks? 


> By looking at the difference between two frames? Or is such case
> also handled in ffmpeg?

That goes way over my head. DV is an intra-frame codec, so what
exactly do you mean by "'caching' of motionless blocks"?


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