A segment of a track, consisting of a URL, a track identifier, and a time mapping from the source track to the composition track.
- iOS 4.0+
- macOS 10.7+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 2.0+
You typically use this class to save the low-level representation of a composition to storage formats of your choosing and to reconstitute them from storage.
Getting Segment Properties
An object that combines media data from multiple file-based sources to present or process media data from multiple sources.
A track in a composition object, consisting of a media type, a track identifier, and track segments.
A mutable track in a composition object that you use to insert, remove, and scale track segments without affecting their low-level representation.