[mythtv-users] No stuttering but non-linear motion

Jan Schneider jan at horde.org
Mon Mar 2 12:45:15 UTC 2009


Zitat von Mark Kendall <mark.kendall at gmail.com>:

> 2009/3/2 Jan Schneider <jan at horde.org>:
>> As described in the subject, I see some non-linear motion in scenes where
>> the camera is panning linearly. This can only be noticed if you closely
>> watch a fixed point in the scene panning by.
>> I wouldn't call this stuttering because you only notice this in the
>> mentioned situation, and the motion is not completely interrupted but
>> slowing down like 2-5 times per second (I'm not good at guessing). The
>> "rhythm" is always the same, i.e. it doesn't change depending on the scene,
>> the load, etc.
>> Any hints to what might cause this and how to fix it are welcome.
>
> I'm guessing you have PAL/50Hz sources. What refresh rate is your monitor/tv?
>
> What you describe is symptomatic of playing back 25/50fps material
> with a refresh rate of 60hz.

That's it! Switching the tv refresh rate to 50Hz immediately fixed it.  
Thanks to you both!

Jan.

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