[mythtv-users] revo 3600, vdpau, bbc hd stutters

Andre Newman mythtv-list at dinkum.org.uk
Mon Mar 1 17:11:29 UTC 2010

On 1 Mar 2010, at 15:58, Greg Oliver wrote:

> On Mon, Mar 1, 2010 at 9:41 AM, James Thorpe <james at tfxsoft.com> wrote:
>> On 01/03/2010 15:23, James Stembridge wrote:
>>> On 1 March 2010 15:15, James Thorpe<james at tfxsoft.com>  wrote:
>>>> One other thing to ask in this thread - I'm still seeing slight juddering
>>>> on
>>>> panning backgrounds (like it's missing frames, rather than stuttering -
>>>> the
>>>> audio is fine), I'm wondering if this has anything to do with screen
>>>> refresh
>>>> rates and video FPS etc - should I start reading about these?
>>> If you're not already you'll want to use a 50hz video mode to get
>>> smooth pans with PAL content.
>> That's probably it then - I think it's on default 60hz at the moment.
>>  Thanks for that - will try it out later.
> Hmmm, I just did some searching for this as I am currently transcoding
> a lot of UK VHS tape rips to PAL.  It seems that some video players
> automagically change the refresh rate of the video out depending on
> the video being played.
> I assuem mythtv does not do this, because on my revo frontends, I can
> see they are mismatched and nothing in the logs regarding it.  Since

It does in trunk or in JYA's .22-fixes, I'm using it now.

You need refresh rate set to any and separate modes for GUI & playback in the FE, now you know it exists google will find the details. 

> the resolution is so low I am not really affected, but it would be a
> nice feature :)

The resolution make no difference, if the display and source frame rates don't match it's going to be juddery!
It's the sort of thing that a lot of people can tolerate but like banging your head against a wall, it's really nice when it stops ;-)


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