An array containing the types of files the session can write.
- iOS 4.0+
- macOS 10.7+
- Mac Catalyst 13.0+
- tvOS 9.0+
The types of files the session can write are determined by the asset and export preset with which the session was initialized. If you need to determine the compatible file formats before initiating the export operation, use the
You can observe this property using Key-value observing.
The URL of the export session’s output.
The file length that the output of the session should not exceed.
The time range exported from the source.
The metadata written to the output file by the export session.
Specifies a filter object used during export to determine which metadata items to transfer from the source asset.
The parameters for audio mixing and an indication whether to enable nondefault audio mixing for export.
The instructions for video composition, and indicates whether video composition is enabled for export.