AVCaptureMetadataInput
A capture input for providing timed metadata to a capture session.
Declaration
class AVCaptureMetadataInputOverview
This class provides input to an AVCaptureSession. An instance of AVCaptureMetadataInput can present one and only one AVCaptureInput.Port connected to an AVCaptureMovieFileOutput. Provide metadata through the input port by conforming to a CMFormatDescription and supplying AVMetadataItem objects in an AVTimedMetadataGroup.