problem with ofQTKitPlayer in examples

Hello all

I am using the osxHighPerformanceVideoPlayerExample to test the long running of a looping video,
i have noticed that after about 20 mins the video “” will start to get choppy playback,
the only thing i have changed in the test app is to set the setspeed to 1, so i could test it.
does any one else have this problem?
or can help me figure out what is going on?

i am on mbp 2.3ghz i7, osx10.8.2, of 0.7.4

here a shot of my heap growth,