Hi all,
I'm using a slightly adapted version of the sample code QTCoreVideo101
which has provided a nice starting point for CoreVideo. I'm noticing
a partcular problem.
When the video window is made sufficiently large (width, height >= 1/2
screen dimensions) and semi transparent, weird things happen. While
the performance of QTCoreVideo101 remains high, performance for a few
other apps slows down. Namely, iChat text message update scrolling
slows, text boxes are more sluggish to type in, and switching between
windows gets slower.
The ``top" app reveals the app is using < 10% CPU, but the
WindowServer app goes from 1-2% to > 20%. I'm no expert at OpenGL,
but that seems to be causing part of the problem. Does anyone have an
idea of what's going on and how to resolve it?
Thanks,
Ian
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