Philip Hodgetts: There is a lot of new audio functions. A lot, as in heaps. […] We’ve had AVAssets and AVCompositions in AVFoundation up until now, which do not support reference movies. It seems a reasonable inference that an AVFragmentedMovie is what we’d have called a QT Reference movie in the past. Update (2014-10-18): Mike … Continue reading AVFoundation in Yosemite