view:(QTMovieView *)view willDisplayImage:
view:(QTMovieView *)view willDisplayImage:
- Subject: view:(QTMovieView *)view willDisplayImage:
- From: julius <email@hidden>
- Date: Thu, 04 Aug 2011 20:13:29 +0100
Hi,
I've been looking for a way to draw on top of a QT movie whose display dimensions the user can vary using the window's resize handle(?) while it is running.
I have previously stepped through the individual frames but the result was jerky.
I obtained a smoother result by first converting the movie into an image sequence but the time required to perform the convertion and memory use are unacceptable.
The most promising suggestion I've found so far is the (undocumented) delegate method in QTMovieView.h
- (CIImage *)view:(QTMovieView *)view willDisplayImage:(CIImage *)image
Some discussions on various forums circa 2008, suggest the method had been used successfully in the past but it's not worked for me.
XCode seems not to recognise it.
Is the method no longer extant?
Should I look to try another approach e.g. Core Video?
I use XCode 3.2.6
Julius
http://juliuspaintings.co.uk
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