[mythtv] RE:DVB stuttering problems

matt.jarvis at philips.com matt.jarvis at philips.com
Wed Nov 12 05:52:12 EST 2003

> Depends whether you just get one or two on channel change? The driver 
waits for the card to get it's arse in gear and if this takes more than a 
hundred ms or so I think it >prints a warning. (It usually will do). Also 
you may get a few warnings about corrupt TS during the channel change. 
Seems quite normal. 
> Basically if you can watch TV then the NO LOCK is not proving to be a 
problem. Watch the output of tzap to see what I mean. 

I only get this NO LOCK message on channel change, followed by a couple of 
warning messages about continuity in the transport stream. It actually 
changes channels correctly ( apart from the stuttering across muxes ). 
Switching between channels on the same mux is absolutely fine between BBC 
and BBC2 for example. If I switch to ITV1 from a BBC mux then it stutters, 
however if I change the other way ie. start on ITV1 mux and switch to BBC1 
or BBC2 then no stuttering .. hmmmm

My sound card supports full duplex ( SoundBlaster Live 1024 ).

Could this be related to the timestamps issue you were talking about ? I'm 
certainly also seeing some sync issues in the channels which do work 


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