[mythtv-users] XvMC, i915, latest intel drivers
R. G. Newbury
newbury at mandamus.org
Fri Apr 11 21:55:38 UTC 2008
jb17bsome wrote:
> On Thu, 10 Apr 2008 13:44:32 -0700
> "Billy Macdonald" <billymacdonald at gmail.com> wrote:
>
>> Hello,
>>
>> I decided to give the latest Intel RC drivers a shot as they are
>> supposed to incorporate XvMC. I have been able to get them installed
>> and was able to play back some mpeg using xine and xvmc. So I'm
>> pretty sure that the XvMC is working, at least somewhat.
>>
>> When I configured mythtv to try to use XvMC it crashes on SD MPEG
>> from QAM, and it falls back to xv playback in HD. Xv playback does
>> work properly, but the machine doesn't have the guts to play 1080i
>> with 1080p output, which is my goal with XvMC. Doing some debuging
>> MythTV is determining the max XvMC as 720x576, but xvinfo report
>> 1920x1088. Not sure what that's about. But until SD plays with XvMC
>> no point in even trying HD :)
>>
>> It looks to me like the myth code is deciding to use a textured
>> surface and not the overlay surface. Is this how it should work? Any
>> ideas on where I should troubleshoot? I spent last night trying to
>> dig through the code to understand how it all works, but I really
>> don't understand the XvMC stuff very well.
>>
>> I've attached my mythfrontend log and xvinfo if anyone feels like
>> looking.
>>
>> Thanks,
>> Billy
>>
>> PS
>> fedora 8 i386
>> Xorg 1.3 (i think, that's what the rpm installed is
>> xorg-x11-server-Xorg-1.3.0.0-44.fc8.i386, but the latest Xorg releases
>> are in the 7's so that confuses me.)
>> xf86-video-intel-2.2.99.902
>
> The intel xvmc drivers only support up to 720x576 surfaces. So, they
> won't help for HD. Sorry about that.
> Also, Xvinfo gives you information about Xv but not XvMC.
Where did you get that piece of information about 720x576? I understood
that the intel (with xvmc) driver could handle the full 2048x2048 xv
image size...makes no sense otherwise...
Geoff
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