[MPlayer-dev-eng] inverse of tfields filter

[Not Zed]

> > I also had a problem with audio not working on a tv card (sound going
> > via a soundcard), which i fixed by changing the way the tv demux control
> > method detects if it has sound, but i would presume this would have been
> > fixed since 0.90 was released (?), and i doubt my patch is correct
> > anyway.
> 
> send the patch (separated from tfields thing), we'll see

I just checked cvs, its already got a fix for this.