[mythtv-users] Playback On Intel

Greg Thompson gthompson20 at gmail.com
Sun Jun 1 18:45:11 UTC 2014


On May 24, 2014, at 4:27 PM, Cédric Schieli <cschieli at gmail.com> wrote:

> 2014-05-11 17:10 GMT+02:00 David Edwards <david at more.fool.me.uk>:
> 
> Judder - On SD MPEG-2 broadcasts there is a noticeable judder every
> second or so, particularly on horizontal pans. On HD H.264 broadcasts
> the judder is there, but less noticeable. I am in the UK, so these are
> 25fps interfaced. On ripped DVDs (deinterlaced with Handbrake where
> applicable) at 25fps and Blurays at 23.976 fps playback is generally
> smooth, but there is an occasional jump. This happens on all playback
> profiles. The refresh rate on the TV appears to be correctly switching
> based on the content.
> ... 
> 2. The worst of the judder can *sometimes* be fixed by running
> "DISPLAY=:0.0 xrandr" from an SSH session - ie, with no params -
> during playback. The picture jerks once and then settles to be smooth.
> It is also fixed sometimes by returning to the playback settings menu
> and then starting playback again.
>  
> I suspect those to be caused by bug #12150. Running xrandr from SSH would refresh the modeline used by avsync_predictor in MythPlayer, so does my patch from this bug report.


I am still getting occasional segfaults on my NUC unit using VAAPI (Never Segfaults using OpenGL). I am using fixes 27.1 which I believe includes the VAAPI patch. Can someone tell me how compile with debugging symbols so that I can submit a ticket?

Greg

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