The time range exported from the source.
- iOS 4.0+
- macOS 10.7+
- Mac Catalyst 13.0+
- tvOS 9.0+
The default time range of an export session is
kCMTimePositiveInfinity, meaning that (modulo a possible limit on file length) the full duration of the asset will be exported.
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 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.