[mythtv] Re: [mythtv-commits] Re: Ticket #345: starting live TV failed

Ashley Bostock abostock at gmail.com
Tue Sep 20 07:25:59 UTC 2005


All the new dvb signal monitoring code was added after the 18.2 release.

Ash.

On 9/20/05, Jason Weinstein <potuncle at gmail.com> wrote:
> 
> So, I take it that now is not a good time to upgrade to the "stable 0.18.2branch" considering I'm also using DVB on a HD3000?
> 
> I've been running 0.18.1 for a while and have been waiting until I had the 
> time to update to the most recent release-0-18-fixes. My main hope was to 
> fix the problem of mythbackend freezing up whenever it tuned to a channel 
> with a weak or no signal. 
> 
> Jason
> 
> On 9/19/05, Daniel Kristjansson <danielk at cuymedia.net> wrote:
> 
> > On Mon, 2005-09-19 at 07:55 -0600, Greg Grotsky wrote:
> > > I get this same stuff with my recent SVN last night (7272) using DVB
> > > on HD-3000. Kernel version: 2.6.13.2 <http://2.6.13.2>. LiveTV works 
> > the first time but 
> > > exiting and reentering LiveTV or changing channels is very risky.
> > 
> > I'm working on a comprehensive solution to the tuning problem.
> > 
> > Fixing the current code is a losing battle. The code was originally
> > written when tuning was atomic, i.e. with the bttv framegrabber cards.
> > Then less atomic tuning processes were added little by little, with
> > the current tuning process involving multiple threads being the result.
> > 
> > I'm removing tuning from the mainserver thread and removing the separate
> > tuning thread for the DTV cards and removing RingBuffer pausing. All of
> > the tuning will be done in a HandleTuning() function called by RunTV(), 
> > so it will all be handled in the TVRec event thread. But this will take
> > at least a few days as it is a fairly radical change. The upshot will be
> > a much simpler, if not actually simple, process which can be debugged 
> > more easily.
> > 
> > -- Daniel
> > 
> > 
> > 
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> > 
> > 
> > 
> 
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