[mythtv-users] PCTV 292e DVB-T2

David Matthews dm at prolingua.co.uk
Fri Nov 28 18:26:30 UTC 2014


On 26/11/2014 15:42, Chris Simmons wrote:
> I'd be interested in seeing your patch.  It looks like I'm not the only
> one that would like to get it working and it would be good to share
> effort.  I'd quite like to get HDTV back in time for Christmas even if I
> have to hack it in ;)
>

> I'm not sure how tuning etc would work.  Some of the code refers to the
> DVB bluebook and it seems like DVB-T2 might be completely different in
> some respects but I rapidly got lost.  It would probably be sufficient
> for a first cut if you could enter T2 transports manually, presumably it
> could pick up the channels okay from there.

I've added my patch to the fixes/0.27 branch of my fork of MythTV on 
github.

git clone -b fixes/0.27 git://github.com/dcjm/mythtv.git
should get you the code.  It requires the DVB-T2 multiplexes to be in 
the database with mod_sys containing the string "DVB-T2".  It's then 
possible to tune the multiplex with mythtv-setup and that should fill 
the channels.  I'll look into trying to add the ability to enter DVB-T2 
multiplexes from within mythtv-setup.  Let me know how you get on and 
feel free to email me directly.

DVB-T2 tuning can be complicated because it does support
virtual channels called Physical Layer Pipes (PLPs).  Fortunately that 
doesn't seem to be used in the UK but there is a request ticket (11679) 
from someone asking for it.  Adding it wouldn't be hard (it's set using 
DTV_STREAM_ID) but I think it would require an extra field in the 
dtv_multiplex table to hold the pipe ID.

David


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