init(formatDescription:clock:)
Creates capture metadata input to provide timed groups to a capture session.
Declaration
init(formatDescription desc: CMMetadataFormatDescription, clock: CMClock)Parameters
- desc:
A Cmformatdescription that defines the metadata to be supplied by the client. Throws Invalidargumentexception if
NULLis passed. - clock:
A Cmclock that provides the timebase for the supplied samples. Throws Invalidargumentexception if
NULLis passed.