Re: [dvd::rip] Re: Deinterlacing

[Sylvain <alivarys_dubyran@xxxxxxxx>]

Brian J. Murrell wrote:

> On Mon, 2005-07-25 at 22:26 +0200, Sylvain wrote:
>  
>
> > But then, why are deinterlacing method so cpu intensive ?
> >    
>
> For a source that is PS (progressive scan) it shouldn't be in fact I
> wouldn't think, unless transcode (i.e. it's mpeg library) is doing the
> artificial interlacing, producing an interlaced stream and then
> de-interlacing that.
>  
I can hardly imagine the transcode team doing such a thing...

> If it is smart like mplayer is (which I would think it would be) and can
> see that the source is really already PS and just "flagged" to be
> interlaced with a 3;2 pulldown when output, it should not be at all
> expensive to de-interlace as there is no de-interlace needed in fact.
>
>  
>
> > > So with a good player, if you are seeing interlacing artifacts, the
> > > source material was probably recorded on video tape originally and
> > > interlaced at that point.
> > >
> > >  
> > >      
> > "mplayer dvd://1" with no option sure gives me an interlaced video with
> > my "Abyss" dvd, while everything is fine with "Apocalypse Now" as an
> > example.
> >    
>
> Do either give you the:
>
> demux_mpg: 24000/1001fps progressive NTSC content detected, switching
> framerate.
>
> message from mplayer?  That is a sign of an MPEG that is flagged to be
> interlaced but is not actually interlaced.
>
>  
nope, not even in verbose mode.
maybe there be something wrong with my mplayer ?

Thanks,
Sylvain