[FFmpeg-devel] [PATCH] Port tinterlace filter from MPlayer.

Stefano Sabatini stefano.sabatini-lala at poste.it
Tue Aug 30 10:50:12 CEST 2011

On date Monday 2011-08-29 03:16:43 +0200, Michael Niedermayer encoded:
> On Sun, Aug 28, 2011 at 02:49:13AM +0200, Stefano Sabatini wrote:
> > Updated, tested against the mp=tinterlace filter, same output is
> > issued (but mp=tinterlace has broken PTSes all set to 0), only
> > difference is in mode 3 where tinterlace correctly set pad lines luma
> > values to 16 rather than to 0.
> If it supports the same syntax, same or more features and no code
> was lost in the porting and its same speed or faster
> then it should be ok

Main difference from the performance point of view is that tinterlace
calls copy_picture_fields(), I can inline it for improving

Apart from that, vf_tinterlace.c looks more complex of the
corresponding vf_tinterlace.c libmpcodecs code - 326 vs. 236 LOC
(lavfi tends to be more verbose, and I added more checks and docs for
internal functions).

I'm going to apply the patch in a few days if I see no comments, then
I'll remove the mp=tinterlace wrapper if there are no objections.
FFmpeg = Fantastic and Foolish Marvellous Picky Entertaining Gadget
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