[MPlayer-users] MENCODER: AuDIO OF SYNC when recording from TV

Fabio Papa f.papa at mcmspa.it
Mon Aug 11 08:50:22 CEST 2003

On Friday 08 August 2003 19:30, Jindrich Makovicka wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> D Richard Felker III wrote:
> >>>No, you don't have to deinterlace since it is exactly half PAL height
> >>> and the interlacing effect is eliminated automatically then.
> >>
> >>Ugh!!?? Wh.. what are you telling me, that I deinterlaced till now,
> >> loosing much video quality, all for nothing? Godness me, please confirm!
> >> If this is true, I will have to adjust some scripts...
> >
> > No, deinterlacing loses the same quality that dropping to 288 height
> > does. BTW, if you only want 288 height, why not just capture 288 lines
> > to begin with??? That way you only get one field, and there's no need
> > for any resizing. It will make encoding a lot faster.
> If you have a decent machine, it can be better to capture whole PAL
> resolution and rescale, just because it's more resistant to noise. The
> downside of scaling to 1/2 without deinterlacing are the resulting
> "ghosts" behind moving objects (as with linear blend deint.). If it is a
> real 50fps interlaced material, median deinterlacer+scale to 1/2 PAL
> would be my choice.
That is what I'm doing right now, so it seems to be ok, after all!
Anyway, while I got the ghosty effect with pp=lb as you suggested, I'm not too 
sure about it when scaling without deinterlacing. I guess I could give it a 
go, since median deint gives other stuttering problems with some Voyager 
Thanks anyway!

Fabio Papa
Engineering division
Machining Centers Manufacturing S.p.A.
viale F. e G. Celaschi 19 - Vigolzone (PC) Italy

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