[mythtv] [PATCH] position map using frame numbers, rev 2

[Ed Wildgoose]

Doug Larrick wrote:

> On 12/14/03 11:34:18, Ed Wildgoose wrote:
>
>> have just tested the patch with DVB and it seems to cause live
>> tv audio to stutter
>
>
> I have seen this once or twice but don't know enough about what  
> determines buffer sizes to know what causes it.  I do get the  
> "prebuffering pause" message from frontend.  I had also seen it  
> occasionally before I made these changes, so it's probably best to  
> debug it as a separate problem.  Unfortunately I've also never seen 
> it  with a prerecorded program so it's hard to reproduce for me.
>
>> Also, the watch recordings screen bails out immediately that it  
>> starts trying to play the thumbnails.
>
>
> Is this static thumbnail preview, or video preview?  I've tried both  
> with HDTV and they work OK.
>
> If you can get an exact backtrace of the crash that would be a big  help.

Yes, sure.  I just wanted to try it after removing all my old position 
maps from the DB - since they might in fact be the problem? 

The stutter is consistent with what happens when the audio rate doesn't 
match with what the sound card is expecting.  I have actually tweaked 
the pre-buffering down to a very low value and this may well be 
contributing to the problem.  I will revert back to vanilla cvs before 
commenting further (although tweaking this does make channel changing 
somewhat faster)

Thanks for listening

Ed W