advanceIntervalForDelegateInvocation
The time interval, in seconds, that a player item legible output object messages its delegate earlier than normal.
Declaration
var advanceIntervalForDelegateInvocation: TimeInterval { get set }Discussion
If possible, an AVPlayerItemLegibleOutput instance messages its delegate advanceIntervalForDelegateInvocation seconds earlier than it otherwise would.
If the value provided is large, the delegate methods are invoked as soon as possible.