poor perf with WMV 8 & 9 movies due to WMP10 upgrade ?

  • Thread starter Thread starter Guest
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G

Guest

On my DELL Inspiron 4000 laptop (PIII 700 MHz, ATI Mobility 8 MB video card),
I used to playback WMV8 or 9 encoded video with WMP9 in full screen at rates
in the range of 1 Mbps with excellent quality (no frame loss) and about 70~80
% CPU usage.
Lately, I noticed that playback of such files has become problematic: CPU is
at 100% and the video playback is shaky (frame rate is about 15 fps
(expected: 25 fps - PAL))
I cannot find the cause of this degradation, as the display driver is still
the same (the latest one provided by DELL for this machine) and DXDiag
reports no issue.
The only changes that have occurred since the last successful playback is
SP2 for WinXP installation, and installation of WMP 10; DVD playback
(Intervideo 4 decoder) is still ok with CPU at ~50 % and no frame loss.
Could SP2 or WMP10 be the cause of this WMV perf degradation ? Are there any
reg keys I could check (CPU intensive playback optimizations to turn off
maybe,...) ?

Thanks for any hint
 
Try tweaking some of the performance options in
Tools->Options->Performance->Advanced

Particularly the Video smoothing and "overlay" may be the culprit.
 
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