[MEncoder-users] Encode SD to H264 via mencoder - best settings

[Grozdan Nikolov]

On Tuesday 08 January 2008 00:50, James Hastings-Trew wrote:
> Warpme wrote:
> > Hi *
> >
> > As subject line says, I want to encode SD (720x576 interlaced,
> > 4-6Mb/s) content to non-interlaced H264. Container can be avi.
> >
> > Currently I was able to achieve quite good quality with latest
> > mencoder SVN & following settings (here only video part):
> >
> > VIDEO_FirstPass="-ovc x264 -x264encopts
> > pass=1:bitrate=1200:cabac:deblock:frameref=3:bframes=2:b_adapt:qp_step=4:
> >weight_b:chroma_me"
> >
> >
> > VIDEO_SecndPass="-ovc x264 -x264encopts
> > pass=2:bitrate=1200:cabac:deblock:frameref=3:bframes=2:b_adapt:qp_step=4:
> >weight_b:chroma_me"
> >
> >
> > Issue is interlacing. Converted content is still interlaced. Playing
> > it on VLC with deinterlace ON gives really nice picture, however with
> > deinterlace OFF it has classical "interlace" distortions on fast
> > moving parts :-(
> > As my system is default noninterlaced - I want to have sll contene as
> > noninterlaced.
> >
> > I was trying add video filters like i.e. "-vf yadif=3,mcdeint" but
> > result was:
> > -content start to be deinterlaced
> > -all movements are visibly "vibrant"
> > -video & audio are out of sync & video is much slower
>
> I've always had better luck with -vf pp=lb
>
> yadif can leave bits of the image still interlaced, and can also create
> weird artifacts of it's own.

Here's a comparison of deinterlacers. In the end there's no perfect 
deinterlacer, they all have their strong and weak points.

http://guru.multimedia.cx/deinterlacing-filters/


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