CVDisplayLinkGetOutputVideoLatency(_:)
Retrieves the nominal latency of a display link.
Declaration
func CVDisplayLinkGetOutputVideoLatency(_ displayLink: CVDisplayLink) -> CVTimeParameters
- displayLink:
The display link whose latency value you want to obtain.
Return Value
A CVTime structure that holds the latency value. This value may be indefinite.
Discussion
This call allows you to retrieve the device’s built-in output latency. For example, an NTSC device with one frame of latency might report back 1001/30000 or 2002/60000.