Media Player Classic (MPC) and WMV-HD hitching

[MoFoQ]

I've tried both Media Player Classic (MPC) 6.4.8.5 and 6.4.9.0 (latest "official" english version) and it will hitch (aka stutter) badly even though the CPU usage never goes above 40%.

In mplayer2 (windows media player 6.4) and in windows media player 9+, it plays just fine.

I re-encoded the file using Avisynth and vdubmod to make a divx3 and a wmva (wmv9 advanced) AVI versions which have similar hitching issues in MPC only. The divx3 version seems to have less than the wmv versions and I noticed that 6.4.9.0 is slightly better than 6.4.8.5.

I'm playing the 1080 version of the coral reef example by MS.
Coral_Reef_Adventure_1080.wmv

[clsid]

Have a look in Options->Tweaks. Disabling the WM ASF Reader tweak might have some effect.

[azumi]

Make sure that the CoreAVC filter is in use. Plus Overlay mixer.

[clsid]

CoreAVC is not a WMV decoder.

[MoFoQ]

no effect disabling the WM ASF reader tweak. :(

besides, the hitching/hard pausing also happens with the xvid version of it and with the avs script version of the wmv.
Works fine in both vdubmod and vdub (the latest per the doom9 download page) and in media player 6.4 and windows media player 9+.

[DeathWolf]

if cpu isnt at fault then the renderer being used might be, try changing the renderer in options to the other vmr/overlay.

[MoFoQ]

CPU usage is roughly the same with wmp6.4.

after a few restarts (both of windows and mpc), overlay, system default, and vmr7 windowed seemed to fix the issue...as far as I can tell.

[DeathWolf]

are you sure the filter chains are the same? that is that the decoders/source filters are the same?

[Bh4i]

I was also having this problem a few weeks ago...

MPC 6.4.9.0 wasnt playing a WMV-HD (terminator 2 extreme edition well while CPU usage was <<50% (Core2Duo E6600 @ 2,4 Ghz).

VLC was working fine tough...