[MPlayer-users] Jerky video encoding when using deinterlacers

Mark Williams (MWP) mwp at internode.on.net
Thu May 19 08:02:02 CEST 2005


> > On Thu, May 19, 2005 at 01:35:36AM +0930, Mark Williams (MWP) wrote:
> > > Greetings all,
> > > 
> > > I have a rather odd problem.
> > > 
> > > The video i am trying to encode is 1440x1088 interlaced at 25fps.
> > > Its a HDTV recording.
> > > 
> > > If i encode with just the VF options of "crop=1424:1072:8:6,scale=1024:576" i
> > > get smoothly encoded video (ignoring the interlacing).
> > 
> > Crop offset (vertical) MUST ALWAYS BE A MULTIPLE OF 4 FOR INTERLACED
> > VIDEO!
> > This is in the documentation.
> 
> Ok, thanks.
> 
> Those crop numbers came from cropdetect, so i assumed they would be ok.
> 
> I dont think this will make a difference though as i was putting the
> deinterlacers before the crop & scale to make sure it wasnt an effect of them on
> the deinterlacer.
> 
> Ill change the crop values and report back.

It did not make a difference.

Infact just using "-vf pp=md" and no other VF filters (no crop or resize) still causes the jerky
motion every second.

Any other ideas?

Thanks.




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