[mythtv-users] Internal player, Mac Mini, HD

[Tino Keitel]

On Fri, Apr 11, 2008 at 17:24:37 +0100, David Campbell wrote:
> Hi - I am having a few issues playing back HD files in mkv container 
> using Myth's internal player on a dual core mac mini.  The playback is 
> jerky particularly during action scenes or long pans.  This despite lots 

Could it be that you mean tearing video, caused by non-existent vblank
support in the textured video XV port of the Intel driver?

You could check it this way:

$ xvinfo | grep -Ei "adaptor|port base"

This gives you the base ports of both XV ports (textured video and
video overlay). The former is used as a default, as it comes first in
the list.

Now, take a video file where you see that jerky playback, and start it
with mplayer:

$ mplayer video.file

Watch out for the jerky playback.

Now start again mplayer using the video overlay port:

$ mplayer -vo xv:port=<video overlay base port> video.file

Look if the jerky playback is still present.

I hope this helps.

Regards,
Tino