[Libva] Playback Issue

Sander Jansen s.jansen at gmail.com
Thu May 16 13:13:41 PDT 2013


I think I found my problem. I had forgotten I had set my refresh rate to
24Hz.

Sander


On Tue, May 14, 2013 at 8:57 AM, Sander Jansen <s.jansen at gmail.com> wrote:

> I'm having issues playing back certain videos using mplayer and vaapi. It
> usually results in the audio getting out of sync pretty quickly with video
> not being able to keep up. mplayer usually will spit out a message that the
> system is too slow to play this, but system almost uses no CPU !?
> I'm using the latest Intel drivers (2.21.6) and va-intel-driver 1.0.20 on
> a Ivy Bridge hardware (Intel NUC*).
> Comparing two videos where one doesn't work and the other plays fine:
>
> slow.mp4**
> 1 video H264 High at 3.1, 2588.880 secs, 1833 kbps, 1280x720 @ 25.000000 fps
> 2 audio MPEG-4 AAC LC, 2588.885 secs, 152 kbps, 44100 Hz
>
> plays_fine.mp4
> 1 video H264 High at 3.1, 548.666 secs, 2913 kbps, 1280x720 @ 24.000029 fps
> 2 audio MPEG-4 AAC LC, 548.687 secs, 256 kbps, 44100 Hz
>
>
> Is this perhaps an issue of framerate? I also have the same exact problem
> when I switch from vaapi to the gl backend of mplayer. The x11 backend
> seems to work fine (no sync issues), but shows frame tearing.
>
>
> *
> http://www.intel.com/content/www/us/en/motherboards/desktop-motherboards/desktop-board-d33217gke.html
>
> **https://www.youtube.com/watch?v=Wm174EquYLc (video can be downloaded
> with the various command line tools like youtube-dl)
>
>
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