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AVVideoCompressionPropertiesKey

A key to access the dictionary of compression properties for a video asset.

Declaration

let AVVideoCompressionPropertiesKey: String

Discussion

The value for this key is an instance of NSDictionary. Add entries to this dictionary to manually change bit rate, B-frame delivery, I-frame interval, and codec quality. Querying the supportedOutputSettingsKeys(for:) method reveals the keys supported for the current release and configuration.

See Also

Compression