[vdr] Re: Necessity of Emergency Exits...

[ma.hoff@t-online.de (Martin Hoffmann)]

Am Montag, 22. Juli 2002 21:15 schrieb Ulrich Petri:
> Martin Hoffmann wrote:
> > Another idea would be to monitor the signal strength - i do
> > not know what
> > signal strengh is reported by the driver in case it already
> > got stuck and
> > delivers no video stream ! Maybe in spite of delivering black
> > screen still
> > the correct signal strength is reported ? Then VDR could
> > dinstinguish between
> > external signal loss and f**k up of the driver !?
> >
> > Unfortunately i havent applied the signal strength patch (i
> > remember there was
> > one !?) - so i cannot test ...
>
> Hi,
>
> i can confirm that this is (at least with my 2.1 TT board) correct.
> when the driver gets stuck (happens sometimes after extensively OSD use
> and heavy channel switching mixed) the signal strength and snr values
> are still "normal" (i.e. don't change)
> If a real signal loss happens (rain, trees, etc.) the ss and snr are
> going down.
>
> Cu Ulrich
Cool ! Then this would be a way for VDR to distinguish these cases !

So, all we nee is to implement a check for snr values>0 before restarting in 
case the videostream is broken !? Klaus ?

Martin.