Bizarre problem - GBPVR stutters on HD recordings

[autumnmist]

I have (had) a completely functional GBPVR setup. I could record and watch HD and SD tv shows just fine. Then last night, I returned and found that I can no longer play recorded HD tv shows without major stuttering!

I hadn't changed any decoder settings. The files themselves are fine and play back without stuttering in VLC, just not in GBPVR or in Windows Media Player. I can watch HD TV shows without stuttering. The only things I can think of that changed between last night (when HD playback was working) and now is that I installed the most recent batch of Microsoft updates and that I checked off the deinterlacing option in the Nvidia Control Panel (I unchecked it just now to see if that was the cause of the stutter, but no dice). The stutter is such that both video and audio are stuttering and the GBPVR interface becomes less responsive (it takes a few tries to Esc/right click back out of the playback view).

Any ideas?

[autumnmist]

Arghhh, I even went and tried every audio/video decoder combination I could try, and still no improvement. I uninstalled and reinstalled ffdshow, updated to Windows Media Player 11, nothing. It was working perfectly yesterday!

[whurlston]

have you defragged?

[autumnmist]

have you defragged?

Er, no... but I'm not sure that is relevant to this situation (why would it only affected WMP/GBPVR and not affect VLC playing the same file)

[whurlston]

Er, no... but I'm not sure that is relevant to this situation (why would it only affected WMP/GBPVR and not affect VLC playing the same file)

VLC has a read ahead cache setting which could be the reason it plays fine. WMP and GBPVR are both DirectShow applications and VLC is not.

[pBS]

still sounds like codecs...have you looked at logs or lastgraph to see what filters are actually being used?
maybe a codec trial timed out, or is broken..

oh, windows updates? ewwwww, they can be very risky...they aren't tested in real world first..nor with eachother..service packs best way to go..
what win ver? sp level?
updates are more often a disruption than a cure for anything...

vlc has own codecs, but neither wmp or gbpvr do..points to directshow or codecs..

and where is this deinterlacing setting in nv control panel? all i see is 'inverse telecine'

[martint123]

I'm not sure of the relevance to HD, but didn't some of M/S updates dump a new Quartz.dll on the system and wasn't that the cause of some stuttering in the old days???

[autumnmist]

still sounds like codecs...have you looked at logs or lastgraph to see what filters are actually being used?
maybe a codec trial timed out, or is broken..

oh, windows updates? ewwwww, they can be very risky...they aren't tested in real world first..nor with eachother..service packs best way to go..
what win ver? sp level?
updates are more often a disruption than a cure for anything...

vlc has own codecs, but neither wmp or gbpvr do..points to directshow or codecs..

and where is this deinterlacing setting in nv control panel? all i see is 'inverse telecine'

Yeah "inverse telecine" is what I'm talking about - but checking/unchecking it doesn't make a difference.

I'm on XP SP3. Yeah I'm inclined to think it's some change in Directshow/codecs. I didn't have any trial codecs setup, so that's not it.

[autumnmist]

Oh here's some more information: the stutter is not as bad (but still unwatchable) if I switch to Enhanced Video Renderer vs. any of the other choices.

I will look at lastgraph tonight.

[autumnmist]

Edit: Quartz.dll file swap did *not* help (yes swap worked correctly, the older version is now in use, but did not help the stutter). Also, I only get the error mentioned below when I use VMR9 Custom (not when I use VMR9 Fullscreen Exclusive, Overlay Manager, EVR) but I have the stutter no matter which I use.

-----------------

I'm attaching my pvrx2.exe-native.log log file... I guess the decoders loaded seem ok to me, but I'm not sure what to make of this error message and/or whether it's relevant to the problem I'm having with stuttering. Could use some advice.

The error that's catching my eye:

Code:

2009-07-20 22:25:09.203    VERBOSE    relative position is (-0.007353,-0.013021,0.000735,0.001302)
2009-07-20 22:25:10.531    VERBOSE    m_pD3DDev->Present() failed
Error code : 80004005
E_FAIL
An undetermined error occurred

2009-07-20 22:25:10.546    VERBOSE    DirectShowPlayerBase::stop

Also, I took a look at lastgraph.grf and the audio is fine. When I delete the video renderer filter, the audio plays without stuttering, once I add the video renderer filter back, I get stuttering. There is no stuttering if I use the DShow video renderer (however I don't see any video displayed which I do not understand).

I'm going to try the quartz.dll swap (http://gbpvr.com/pmwiki/pmwiki.php/FAQ/Codec#toc6) even though I have an NVidia 7200 GS (not an ATI card).