[vdr] Intelligent management of simulcast DVB-S2 / DVB-T channels

Magnus Hörlin magnus at alefors.se
Thu Feb 23 19:36:32 CET 2012

On 02/23/2012 04:50 PM, Dominic Evans wrote:
> I remember seeing patches for marking channels as identical in terms 
> of EPG (so e.g., a DVB-S version of the channel can automatically 
> share the EPG entries from the DVB-T version), but has anyone worked 
> on a patch for identifying simulcasting channels, or even had some 
> preliminary design thoughts for how one could be implemented?
> I can imagine at least the following two use cases:
> 1) When watching live TV, channel '1' automatically selects the 'best' 
> available version of 'BBC One London' depending on available tuners - 
> e.g., rotating through BBC One HD (DVB-S2), BBC One (DVB-T2), BBC One 
> (DVB-S) and BBC One London (DVB-T).  This is much more intuitive than 
> having to manually find an available broadcast of the channel.
> 2) For recordings, if a timer needs to start a recording on 'BBC One 
> London', depending on its priority and a 'required quality' attribute 
> it will similarly locate a tuner to make the recording with. Assuming 
> it needs the DVB-S2 tuner for HD, if someone with lower priority is 
> currently watching live TV on BBC One HD via DVB-S2 (and only one HD 
> tuner is available) then they will be transparently switched down to 
> the next available tuner quality.
This is an interesting topic and I have had exactly the same ideas. But 
I think this violates Klaus's "Keep it simple" philosophy and (as usual) 
I tend to agree with him.
/Magnus H

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