addMutableTrack(withMediaType:copySettingsFrom:options:)
Adds an empty track to the target movie.
Declaration
func addMutableTrack(withMediaType mediaType: AVMediaType, copySettingsFrom track: AVAssetTrack?, options: [String : Any]? = nil) -> AVMutableMovieTrack?Parameters
- mediaType:
The media type for the new track.
- track:
An Avassettrack containing the desired track settings to be transferred. Set to
nilto create a track with default settings. - options:
A dictionary that contains key for specifying the movie object initialization. Currently, no keys are defined.
Return Value
An AVMutableMovieTrack object.