objective c - Cocoa, Flicker with animation when overlaying a NSWindow on a QTMovieView -


In a project that I am currently working on, I have overlayed a transparent NSWindow on a QTMovieView. At some points, I slide a custom footage into the window with this animation so that it can be displayed on the film for a short period of time. The only strange behavior is that the animation is smooth on the Mac Book Pro, but there is an important flicker on the Mac Book (the same OS-X version). The flick is only on the part of that window whose real Qtimovie is behind it.

Has anyone seen this behavior before or found a way to work around it?

Old MacBooks do not have real video hardware and shared memory is used, so it's probably a The problem is a slow video card trying to update @ 30 fps. Did you try short films to see if the problem has gone away?

You might be better off the pipeline, such as the CuratorVideo 101 sample code from Apple. It will be a bit more work, you have to take care of the animation, but you will get the ultimate control over what is being pulled.


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