Instance Property

metadataItemFilter

Specifies a filter object used during export to determine which metadata items to transfer from the source asset.

Declaration

var metadataItemFilter: AVMetadataItemFilter? { get set }

Discussion

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 AVMetadataItem.

See Also

Configuring Output

var outputURL: URL?

The URL of the export session’s output.

var supportedFileTypes: [AVFileType]

An array containing the types of files the session can write.

var outputFileType: AVFileType?

The type of file written by the session.

var fileLengthLimit: Int64

The file length that the output of the session should not exceed.

var timeRange: CMTimeRange

The time range exported from the source.

var metadata: [AVMetadataItem]?

The metadata written to the output file by the export session.

var audioMix: AVAudioMix?

The parameters for audio mixing and an indication whether to enable nondefault audio mixing for export.

var audioTimePitchAlgorithm: AVAudioTimePitchAlgorithm

A processing algorithm used to manage audio pitch for scaled audio edits.

var shouldOptimizeForNetworkUse: Bool

A Boolean value that indicates whether to optimize the movie should for network use.

var videoComposition: AVVideoComposition?

The instructions for video composition, and indicates whether video composition is enabled for export.

var customVideoCompositor: AVVideoCompositing?

The custom video compositor instance used, if any.

var canPerformMultiplePassesOverSourceMediaData: Bool

A Boolean value that indicates whether the export session can perform multiple passes over the source media to achieve better results.

var directoryForTemporaryFiles: URL?

A directory that is suitable for containing temporary files generated during the export process.