[mythtv-commits] Ticket #1309: Live TV freezes; apparent buffering issue?

[MythTV]

#1309: Live TV freezes; apparent buffering issue?
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 Reporter:  derek at battams.ca  |       Owner:  ijr 
     Type:  defect            |      Status:  new 
 Priority:  minor             |   Milestone:      
Component:  mythtv            |     Version:  head
 Severity:  medium            |  
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 Unlike #942, I'm seeing live TV freezes under much narrower conditions.
 I'll attach logs, but what I've noticed is the following:

 * Sometimes when I start live TV there is a very small or no buffer at
 all.  In other words, when I display the position bar on the screen it
 shows that I'm 0-2 seconds behind.  When this happens, live TV freezes at
 a program change and the logs look like the ones attached.  Channel
 changes in live TV also can produce this condition (small/no buffer).

 * Other times when I start live TV the buffer is much larger, 3-6 seconds.
 Under this condition live TV switches with no problems at the end of a
 program.

 What I'm suggesting is that there may be a need to ensure a minimum buffer
 size at all times in live TV since it seems if the buffer isn't large
 enough then the switch of the ring buffer at program boundries may have
 problems.  Obviously, I'm not familiar enough with the code (at this
 point) to throw in some debug code or even know exactly where to start
 looking, but I'm hoping my hypothesis and the attached logs can point
 someone with the knowledge of the code in the right direction.

 I'm running SVN 8998.

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Ticket URL: <http://svn.mythtv.org/trac/ticket/1309>
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