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

Greg Oliver oliver.greg at gmail.com
Mon Mar 1 17:49:06 UTC 2010


On Mon, Mar 1, 2010 at 11:11 AM, Andre Newman <mythtv-list at dinkum.org.uk> wrote:
>
> 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 ;-)

Much thanks!  I'll try it as soon as I get home tonight.


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