Instance Property


The timestamp for the first timed data sample in the asset.


var startTime: TimeInterval { get set }


Timed data in an asset is clamped to the start and end times—requesting sample data for a time sample before the start time returns the sample data at the start time.

If the asset does not contain timed information, this property’s value is zero.

See Also

Working with Timed Information

var frameInterval: TimeInterval

The time interval between data samples in the asset.

var endTime: TimeInterval

The timestamp for the last timed data sample in the asset.

Beta Software

This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.

Learn more about using Apple's beta software