- Posts: 2
- Joined: Tue Jul 17, 2018 9:43 am
- Real Name: Alvaro Gippini
Hi Alvaro,
The only way you can guarantee that the input and output are phase aligned is with external reference in.
The GetHardwareReferenceClock timestamps are based on the system time captured by the DeckLink driver. It does not account for time delays for the card to capture the frame, nor system delays via PCIe. As such GetHardwareReferenceClock should only be used for long term average stream times or assessing potential bottlenecks that may arise from callback function handling.
Regards
Cameron