[mythtv] CVS XVMC-VLD status?

Daniel Kristjansson danielk at cat.nyu.edu
Sun Jun 26 19:25:09 UTC 2005


On Sun, 2005-06-26 at 21:06 +0200, Steven wrote:
> Hi,
> 
> It been a while since I updated my EPIA-M frontend to CVS but today I did.
> I compiled using ./configure --cpu=pentium-mmx --enable-xvmc
> and all seems well but there are strange hickups in blackback.
> This is in the log :
> 2005-06-26 20:52:53.265 prebuffering pause
> 2005-06-26 20:52:59.436 prebuffering pause
> 2005-06-26 20:53:01.669 prebuffering pause
> 2005-06-26 20:53:02.237 WriteAudio: buffer underrun
> 2005-06-26 20:53:02.239 prebuffering pause
> 2005-06-26 20:53:03.303 prebuffering pause
> 2005-06-26 20:53:15.209 prebuffering paus
> 
> I have xvmc off, xvmc-vld on , bob deint on, extra audio buffering on,
> libmpeg2 off, video as timebase on and chmod+s and realtime priority on.
> 
> Anyone else seeing these?

I believe there is a patch out there that will up the number of XvMC
buffers when using VLD to 16. That should resolve the problem if you
are only using XvMC w/VLD. I haven't applied it yet because MythTV
should be using 16 buffers already whenever they are available, I
don't want to put in a fix for VLD that will break regular XvMC when
it is VLD is enabled at compile time.

-- Daniel



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