Mon May 18, 2020 12:45 pm
I think I'm missing some fundamental understanding.
Setup Decklink Monitor connected back to back with Decklink Recorder
UPDATE: The following paragraph is INCORRECT. Enabling VITC and VANC together does work correctly. I was unable to reproduce the problem that led me to this wrong conclusion. It is likely that it had to do with running on a 10-year old computer that was not fast enough and causing a variety of instabilities. I've since updated to a faster computer.
Since the SDK doesn't allow the Monitor card to both set TimeCodes and also manipulate VANC for VideoOutput, I figured I could enable VANC without timecodes and use liklvanc to write a VITC timecode to line 9 of the VANC.
I write the Timecode to VANC on the Monitor Card and confirm that the The Recorder card receives the Timecode in the VANC as I wrote it. DID=0x60, SDID=0x60 etc...
What I don't understand is why the BlackMagic SDK doesn't see a timecode on the frame? Shouldn't it be looking into the VANC and see the timecode I wrote? Does it only look in a specific location?
Appreciate any assistance.
Last edited by
wreuven on Sat Jun 13, 2020 6:10 pm, edited 2 times in total.