[mythtv-users] question involving multiple frontends

Michael T. Dean mtdean at thirdcontact.com
Tue Feb 10 16:58:15 UTC 2009

On 02/10/2009 02:50 AM, Simon Hobson wrote:
> Michael T. Dean wrote:
>>>> Is it possible to lock a card to a multiplex ? And is it possible 
>>>> to have the system work with that ?
>>> Yeah, you could do it by having separate Video Sources defined in 
>>> mythtv-setup for each capture card. 
> So that would be a case of configuring each card/source to use only 
> the channels on one multiplex then ?


> When a user changes from (say) BBC 2 to BBC 3, the system sees that 
> BBC 3 isn't available from the current source, and automatically 
> switches the a source that does offer it ?

Not automatically in LiveTV.  You'd have to do it using the NEXTCARD 
binding (not bound to any key by default, so you'd have to map it) or 
using the OSD menu.

> Hopefully the last question, is there any problem with more than one 
> person (or recording) using the same channel from the same card ?

Nope.  Only the HDD sees a difference (i.e. assuming the same 
subchannel, you're writing multiple copies of the same program to disk).

> Does the card driver simply split out the data stream for the channel 
> and feed it to each destination that wants it.

Well, Myth does, but yeah.

Chances are, because of the extra work involved in switching muxes, 
you'd be /much/ happier just having a couple extra capture cards (or 
teaching people to not use LiveTV).


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