[mythtv] [mythtv-commits] Ticket #10442: MythFrontend jittery video playboack on 2010 Mac mini

[Tom Lichti]

On Mon, Mar 12, 2012 at 12:08 PM,  <noreply at mythtv.org> wrote:
> #10442: MythFrontend jittery video playboack on 2010 Mac mini
> ------------------------------+-----------------------------------------
>  Reporter:  joenyland@…       |           Type:  Bug Report - General
>   Status:  new               |       Priority:  minor
> Milestone:  unknown           |      Component:  MythTV - Video Playback
>  Version:  0.24.2            |       Severity:  medium
>  Keywords:  mac frontend      |  Ticket locked:  0
> ------------------------------+-----------------------------------------
>  I have posted this to the mythtv-users mailing list, but unfortunately no-
>  one has been able to offer any advice, other than installing Ubuntu on the
>  Mac mini, which isn't a solution.
>
>  Basically, 95% of the channels and recordings I watch (both live TV and
>  recordings) have jittery playback - no pixelation, but motion is not
>  fluid. This makes 95% of the stuff I watch/record in MythTV unwatchable on
>  my Mac mini, which is my main frontend system.
>
>  I am able to play back the same recordings files on the same system in
>  XBMC (via MythTV's UPNP), VLC (again, via UPNP) and on other frontends
>  too, without any issues.
>
>  There seems to be some issue with MythTV's ability to utilise the GPU on
>  my model of Mac mini, where other applications can utilise it fine. I can
>  play back 1080p content with all the bells and whistles in the likes of
>  XBMC, etc. so the GPU is definitely capable of what I am giving it.
>
>  Primary frontend
>  Mac mini (Mid 2010)
>  Core 2 Duo 2.4 GHz CPU
>  4GB RAM 1067 MHz DDR3
>  NVIDIA GeForce 320M 256MB GPU
>  OS X Lion (10.7.3)
>  MythFrontend jyavenard/backports/fixes/0.24 [v0.24.2-216-g247c4f1-dirty]
>
>  Backend
>  Dell PowerEdge T110II
>  Xeon E31230 3.2 GHz (Quad core +HT) CPU - 4 cores assigned to MythTV
>  backend server
>  1GB RAM 1333MHz DDR3 assigned to MythTV backend server
>  Recordings stored on 3 1TB Seagate drives in md RAID5
>  Ubuntu 10.04 LTS x64
>  MythBackend fixes/0.24 [v0.24.2-19-g02dd6ee]
>  HDHomeRun HDHR3 as the TV source - UK Freeview, so SD quality
>
>  I should be able to post a sample clip later on, as I believe this will
>  help support my description of the issue.
>
>  If there are any other logs/versions/traces that I could provide, which
>  would be useful, please let me know.

This could be related to 10414...

Tom