[MPlayer-users] performance isue?

[D Richard Felker III]

On Wed, Oct 29, 2003 at 08:44:12PM +0100, Magnus Damm wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> It sounds like you experience problems with interlaced video.
> I get the same problem when watching various DVD:s on a 450 Mhz
> powerpc machine. Try using a filter, I use "-af halfpack" but 

Repeat after me: halfpack is NOT a deinterlacer! In fact for real
interlaced video it will make the picture worse. The only time it
serves as a deinterlacer is with bttv's buggy fake yv12 output, and
even then it's not quite right.

> there are probably better alternatives if you have enough cpu.
> Or you can try to find the reason behind the bad performance...

If you want cheap deinterlacing, -vf field=0 is much faster and
actually correct.

But I'm not sure the problem is interlacing. IMO it's more likely to
be tearing that Tom is describing. But without a proper bugreport
(showing which vo he's using, etc.) it's hard to say.

Rich


> 
> / magnus
> 
> On Wed, 29 Oct 2003 20:13:35 +0100
> MPlayer Mailinglist <mplayer-mlist at tomdp.com> wrote:
> 
> > [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> > Hi!
> > 
> > I'm running MPlayer 1.0pre2-3.2.2 without any problem, everything works 
> > how it should work. But I do have what I think is a performance isue... 
> > In scenes with 'big' moves (like for example panoramic views... I can't 
> > really explain..), I get horizontal lines on the screen, and it looks 
> > like the upper half of the screen is out of sync with the lower half so 
> > to speak. Are there some things I can do to avoid this?  The pc is a 
> > pentium 4 1.7Mhz, kernel 2.4.22 with a nvidia geforce card with the 
> > latest drivers installed. I should not be having this kind of 
> > performance problems on a system like this, right?
> > 
> > I know this is hard to explain, but I hope you all understand :)  
> > English is not my native language so I tried to explain the best I can..
> > 
> > 
> > Tom.
> > 
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