[mythtv-users] MythTV does not access hardware decoding (VIA XvMC)? But Xine does!

Raimund Moedlhammer mm44mm44 at gmx.net
Thu Mar 31 19:05:20 UTC 2005


Hello list,

I am heading to install a TV and PVR  on a VIA Epia ME6000 and
using onboard hardware acceleration (CLE 266). I use a DVB-T capture
card (TechniSat AirStar 2TV).

I installed Fedora Core 2 with kernel 2.6.10-1.8_FC2.

I applied the kernel-via-drm from Terry Barnaby´s site
(http://www.kingcot.eclipse.co.uk/unichrome/fc2/)

and most of the new xorg-x11 rpms from here:
http://washington.kelkoo.net/epia/FC2/RPMS/

I have installed
xine-lib-1.0.0-999.1.beam.rc7.fc2.i386.rpm
from
http://www.kingcot.eclipse.co.uk/unichrome/
(after I have solved the dependencies).

Now Xine is able to play DVD very well and using hw acc.

But I still struggle with MythTV 0.17.  The CPU usage is very high
(mythfrontend ~50%, total ~92%) and I get a very choppy life stream when
watching TV. 

I have compiled it with XvMC support, enabled XvMC_VLD support in "settings.pro" (and NOT nvidia-XvMC)

In mythfrontend´s settings I can select 

"use hardware XvMC MPEG Decoding" 
and 
"Use HW XVMC VLC Decoding (Via only)"
 
I have already tried all sorts of combination (one or the other on, both
on or none) and there is no difference in performance and log messages.

When I start "live TV" in mythfrontend I get no messages in console that
XvMC is being used.

First I was asking in the Unichrome list
(http://sourceforge.net/mailarchive/forum.php?thread_id=6926603&forum_id=38837) but then I was told it is a Myth issue...
So find much more details (logs, settings, suggestions, results,...) there.

Does anyone have an idea what I did wrong??

Thanks for help

Raimund



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