[mythtv-users] request to backport - Ticket #10428

[Michael T. Dean]

On 12/19/2012 10:27 AM, Dave Hill wrote:
> Hello,
> I'm not sure if this is more appropriate for -users or -dev, but I 
> figured other users might be interested.
> I believe the underlying issue with Ticket #10428 (mythbackend logs 
> RingBuf-messages every few seconds while playing LiveTV) is a bit more 
> serious than the ticket describes and I'm wondering if this fix can be 
> backported to the 0.25-fixes branch?
>
> I'm currently running Mythbuntu 12.04 with the latest 0.25-fixes 
> packages and I have been seeing  RingBuf and PrebufferEnoughFrames 
> error messages in the mythfrontend.log followed by a playback failure 
> with "Video Buffering Failed too many times".  I have found this 
> mostly happens when my backend is under load (EG recording 2 HD 
> streams on backend, while watching them separately on two remote 
> frontends).  When only playing back one LiveTV stream, it seems to 
> work fairly well.  I have also had this happen when running ffmpeg on 
> the backend while trying to watch a live HD stream on the frontend.
>
> I took the fix related to this ticket and applied it to the most 
> recent 0.25-fixes branch, then built mythtv, then just replaced my 
> libmythtv.so files on the remote frontends.  This seems to have 
> resolved the issue.  If I'm reading it right, the frontends were 
> prebuffering 1/1000th of the data they were supposed to, so I'm 
> guessing whenever the buffering was really needed, it was not there.
>
> http://code.mythtv.org/trac/ticket/10428
> http://code.mythtv.org/trac/changeset/483e06f6b8a/mythtv
>
> Let me know if you need any further information.

Why not just run the current stable release of MythTV, 0.26?  It has the 
fix.

Mike