- iOS 13.0+
- macOS 10.11+
- Mac Catalyst 13.0+
- watchOS 6.0+
NSDataobject that contains a movie header.
A dictionary that contains key for specifying the movie object initialization. Currently, no keys are defined.
A description of the error that occurred. Default value is
On initialization, the
default property and any associated
media properties are set to
nil. To create an
AVMutable from a file and then append sample buffers to any of its tracks, you must first set one of these properties to indicate where the sample data should be written.
Use this method to create movies from movie headers that are not stored in files, which can include movies on the pasteboard.