Specifies a filter object used during export to determine which metadata items to transfer from the source asset.
- iOS 7.0+
- macOS 10.9+
- Mac Catalyst 13.0+
- tvOS 9.0+
If the value of this key is
nil, no filter will be applied. This is the default.
The filter will not be applied to metadata set with via the metadata property. To apply the filter to metadata before it is set on the metadata property, see
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.
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.