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I use CoreVideo's Display Link to render a QuickTime movie and I need |
to know to which TimeValue (in the Movie's TimeScale) the returned
frame of QTVisualContextCopyImageForTime corresponds.
Is there any way to convert a CVTimeStamp to a Movie Time? Or any
other approach to get the TimeValue of the returned frame?
Have you tried geting the Movie Time from the returned CVImageBufferRef?
kCVBufferMovieTimeKey - The movie time associated with the buffer. Generally only available for frames emitted by QuickTime (type CFDictionary containing the kCVBufferTimeValueKey and kCVBufferTimeScaleKey keys).
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