1 Mar 2005 02:42
Re: Re: [-] Re: [-] TV-recording with mencoder, "video-buffer full"
D Richard Felker III <dalias <at> aerifal.cx>
2005-03-01 01:42:22 GMT
2005-03-01 01:42:22 GMT
On Mon, Feb 28, 2005 at 10:26:39PM +0100, Matthias Wieser wrote: > Am Montag, 28. Februar 2005 17:01 schrieb D Richard Felker III: > > On Mon, Feb 28, 2005 at 12:23:50PM +0100, Matthias Wieser wrote: > > > > > You could try pp=fd instead of pp=lb. The former should give a > > > sharper image quality. > > > > Bad suggestion, IMO. If you're going to use pp=fd, just capture a > > single field (height=288) instead. The quality will be comparable > > either way, > > My tests show the opposite. (http://home.knuut.de/MWieser_/index.html) The opposite of what? I didn't say pp=lb looks good (in fact it's very bad). What I said is that pp=fd essentially throws away a whole field, and it has other flaws, so it should never be used. > > since pp=fd essentially throws away one whole field > > ..only when it actually needs to deinterlace. Static scenes show much > better quality than pp=md, pp=ci, and so on. pp=md or perhaps kerndeint throws away the least for static scenes. But both still have underirable side effects. It's impossible to fix the fact that interlacing is fundamentally mathematically flawed. All you can do is lessen the ugliness. > > (but also adds edge ghosting from the other field -- very ugly!) > > I have never seen those edge ghosting. Do you have screenshots?(Continue reading)
> I didn't say pp=lb looks good (in fact it's very
> bad). What I said is that pp=fd essentially throws away a whole field,
> and it has other flaws, so it should never be used.
I know it has flaws, but I have never seen ghost images and I think the
other flwas are not as bad as when using pp=md, pp=lb, pp=ci,...
> > > since pp=fd essentially throws away one whole field
> >
> > ..only when it actually needs to deinterlace. Static scenes show much
> > better quality than pp=md, pp=ci, and so on.
>
> pp=md or perhaps kerndeint throws away the least for static scenes.
That's right. For that reason I have recommended to use kerndeint if the
CPU is fast enough. But pp=md is nearly unusable because it produces 1x2

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