isVideoFrameDurationLocked
Whether the device’s video frame rate (expressed as a duration) is currently locked.
Declaration
var isVideoFrameDurationLocked: Bool { get }Discussion
Returns true when an AVCaptureDeviceInput associated with the device has its activeLockedVideoFrameDuration property set to something other than kCMTimeInvalid. See activeLockedVideoFrameDuration for more information on video frame duration locking.