[MPlayer-users] Re: [-] Re: Crop before deinterlacing OK?

[Matthias Wieser]

Am Dienstag, 26. Juli 2005 21:45 schrieb Rich Felker:
> On Tue, Jul 26, 2005 at 08:53:29PM +0200, Matthias Wieser wrote:
> > Am Dienstag, 26. Juli 2005 01:19 schrieb Rich Felker:
> > > On Mon, Jul 25, 2005 at 03:08:46PM +0200, Matthias Wieser wrote:
> > > > > This makes nasty ghosts, in the
> > > > > form of an edge-detected version of the discarded field...
> > > >
> > > > ...which no person has ever seen?...
> > >
> > > It's clearly visible. See this example I created a long time ago:
> > > http://brightrain.aerifal.cx/~dalias/lavcdeint_sucks.jpg
> >
> > OK.
> >
> > This ist what pp=lb would make out of it:
> > http://home.knuut.de/MWieser_/lb.jpeg
> >
> > What's the alternative? pp=ci?
>
> Never use pp=ci; it is completely useless. Alll it does is create
> redundant information.

You know how it was meant :-)
Unfortunately Mplayer has no better deinterlacer than pp=fd because pp=ci 
creates bad looking edges and you could just capture one field and let 
the graphics card do the bicubic scaling. On the other hand pp=md 
produces even worse looking micro-blocks. So pp=lb, kerndeint and pp=fd 
are imho the only usable deinterlacers. (maybe pp=md if you scale down 
the video before compression).


> BUT, in general, the (only) alternative is tfields.

That's why the upcoming Kalva release (0.7) will be able to use this high 
quality 50Hz profile:
http://www.kde-files.org/content/show.php?content=26921&PHPSESSID=adfed4c8b6897fe82e42dfc1cb5a1c44
This "get-hot-new-stuff" technology is really nice. Anybody will be able 
to provide profiles for tv capturing. 

Regards,
  Matthias