Every once in a while (okay maybe 3 times) I have some problems with some of the files I want to playback using VDPAU in myth. They are always h.264 mkvs, although most h.264 mkvs play fine. What I get is either a lot of pixelation, or as in this latest case, audio stuttering (the video seems fine). I've played with all kinds of settings in my ION Zotac Mag (Atom 330) but (different deinterlacers, modifying vdpaubuffersize) but nothing seems to help. The latest file is 3859Kbps (video), audio is DTS 6Channel 510Kbps. I've toggled the audio buffer setting in the frontend playback settings to no avail.
It's not a huge deal, as the video plays fine on my frontends that are powerful enough not to rely on VDPAU.
I'm pretty sure this is a problem with Myth's internal player or my configuring of it because on the same ION machine that has problems, I can play it back using VDPAU in XBMC or using mplayer without a problem. However, I'd prefer to use the internal player.
Any ideas on what I should look for?