Timecode from Ref Input?

Hello, is it possible to get Timecode of incoming IDeckLinkVideoFrame frame in IDeckLinkVideoOutputCallback.ScheduledFrameCompleted callback, that works from Ref Input (synchro pulse)?
Or Timecode can only be obtained from incoming video from camera?

In case of working with Ref Input the timecode == null:

Code: Select all

void IDeckLinkVideoOutputCallback.ScheduledFrameCompleted(IDeckLinkVideoFrame completedFrame, _BMDOutputFrameCompletionResult result)
        {
            IDeckLinkTimecode timecode;
            completedFrame.GetTimecode(_BMDTimecodeFormat.bmdTimecodeLTC, out timecode);
            if (timecode != null)
...

Regards
Sergey

Ref signal is Genlock / Blackburst and has NO time info in it at all.
This signal is only used as a clock source to keep things happening at the same point in time.. But it's just a pulse..

Timecode can be derived from the SDI signal if a Timecode is present in the SDI signal from the source..

Hello, thanks, I just wanted to make sure of this

Regards
Sergey