Instance Property


Returns whether the receiver’s track is enabled.


var marksOutputTrackAsEnabled: Bool { get set }


For file types that support enabled and disabled tracks, such as QuickTime Movie files, specifies whether to enable the track corresponding to the receiver by default for playback and processing.

The default value is true.

See Also

Configuring a Writer Input

var metadata: [AVMetadataItem]

The collection of track-level metadata to associate with the asset and for carriage in the output file.

var transform: CGAffineTransform

The transform specified in the output file as the preferred transformation of the visual media data for display purposes.

var mediaTimeScale: CMTimeScale

Specifies the media time scale to be used.

var expectsMediaDataInRealTime: Bool

A Boolean value that indicates whether the input should tailor its processing of media data for real-time sources.

var naturalSize: CGSize

Size specified in the output file as the natural dimensions of the visual media data for display.

var preferredVolume: Float

The preferred volume level for storing in the output file.