[MPlayer-users] How to tell if the video input is interlaced or not?

[Florin Gherendi]

On Fri, 2005-12-16 at 02:47, RC wrote:
> On Thu, 15 Dec 2005 22:51:43 +0200
> "Jouni.Lohikoski at iki.fi" <jlohikos at cc.hut.fi> wrote:
> 
> > I have Leadtek WinFast A310 Ultra MyViVo which works with the rivatv
> > driver providing v4l interface. But it only works without X.
> 
> It only works without X?  That really doesn't make any sense to me.  I
> can't think of any reason a capture card would stop working when X
> starts.

I've noticed some overlay problems with the last versions of Xorg and
the nvidia drivers (official or not). In my case (nvidia GeForce2 MX200)
Xorg does not accept more than one overlay application to run
simultaneously. More than that, mplayer changes some overlay settings
that prevents xawtv to run after it. Might be a similar problem here?
I guess it is rather related to Xorg.

> > I am able to watch video input in a concole with:
> > mplayer -vo vesa -tv
> > driver=v4l:norm=PAL:input=0:outfmt=uyvy:width=704:height=576:fps=50
> > tv://
> 
> fps=50?  The F in fps means frames not fields, so that should be fps=25.
>  You're just wasting CPU time doing that, AFAIK.
> 
> > Any tests, tricks, How do I tell if the video input is really
> > interlaced or not?
> 
> What?  I think you can safely assume (PAL) TV is always going to be
> interlaced.
> 
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