[mythtv] Current DVB problems rundown

Stuart Auchterlonie stuarta at squashedfrog.net
Tue Sep 13 09:21:00 UTC 2005

On Sun, Sep 11, 2005 at 09:12:08AM +0200, Rudy Zijlstra wrote:
> Kenneth Aafløy wrote:
> >Lørdag 10 september 2005 08:04, skrev Daniel Kristjansson:
> > 
> >
> >Hu, the NIT can take a huge time to get, why not SDT as that's transmitted 
> >more frequently, or event the PAT?
> >
> > 
> >
> On a slight tangent: NIT scanning has its own pro's: Many of the Astra 
> and hotbird sats have very different customers. These customers use 
> different CA systems. Normally when you want to receive encrypted 
> streams, you will buy an CI module for 1 provider (= 1 particular 
> customer of the satellite). Enabling receiving encrypted streams in myth 
> will give you *all* encrypted streams, including most you cannot 
> decrypt: different CAS, different EMMs.... This could be solved by doing 
> a NIT scan: first check which NITs are present, then present the user 
> with a list of NIT (NIT network id, original network id and descriptor) 
> and let him select which NIT he wants to have. Only channels within the 
> users subscription (or at least from the same broadcaster) will be added 
> at that point.

Isn't that what the BAT (Bouquet Association Table) is for?

A Bouquet is used to specify logical groupings of channels
such as those by a single provider.

Somebody on a satellite feel like doing some dvb snooping to find
out if this is true???


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