Moving to AV Kit and AV Foundation

AV Foundation is the recommended framework for working with time-based audiovisual media. Learn how to transition your QuickTime or QTKit based media app to AV Foundation and understand the key concepts underlying the modern media architecture of OS X. Explore how AV Kit makes it easy to play modern media in your OS X apps by providing view-level services for playback, standard navigation controls, chapter selection, and support for subtitles.

WWDC 2013 - Session 606 - macOS