[mythtv] XvMC VLD Decoding stuttering problems on some videos

[Terry Barnaby]

Hi,

I have been using MythTv 0.16 with little problem for a long time but 
now have "upgraded" to 0.20. However I am having problems with the XvMC 
VLD decoding. Basically the system works but there is quite a lot of 
stuttering in the video and audio on some stored video.

My systems client is a Via M10K system running a relatively virgin 
Fedora Core 5 installation. The server is also running Fedora Core 5 and 
has a couple of DVB-T tuner cards.

Xine is running fine with about 11% CPU usage so the hardware/OS/drivers 
appear to be fine.

I have been doing some testing using the "mythtv" application with a 
stored file. With some videos there is no stuttering: see Works 
attachment but with some videos there is a lot of stuttering: see 
Glitches. With the working video the system uses about 40% CPU and with 
the bad video about 60% CPU. These are rather high CPU figures compared 
with Xine.

Does anyone have any clues on where to look to solve this problem ?

Cheers


Terry

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