[mythtv] Re: Adding DVB-T support to MythTV

[Edward Wildgoose]

> > Hey, I hadn't thought about the fact that two channels may be available at
> > the same time from one tuner card (as long as they are on the same
> > multiplex). That is a really nice feature, one that must definitely be 
> > incorporated into any final solution.
> :)
> 
> It is a nice feature, its things like this that make me think that doing 
> DVB support properly is more complicated than it appears and will require 
> changes to myth. That doesn't change the fairly easy get it working using 
> pipes method though.

The backend already has support for multiple tuners so if the abstraction was at the "tuner" level then this would appear to fit with the current design.  So perhaps create an alternative tuner object which can read from the DVB card instead of from a v4l device.  If there are multiple streams within a DVB stream, then this is great because we effectively have multiple "tuners" available.

If this tuner object can read a pre-compressed stream, where available, then this will save a ton of resources.