Clock reference comparison in/out
Posted: Tue Jul 17, 2018 12:45 pm
Hi all,
My company is designing a test bench to verify some video requirements from our systems. We have already used Decklink Quad 2 in other projects, but this time we need one particular capability and I would like to confirm that Quad 2 (or Duo 2) can fit.
Is it possible to verify that the clock reference of 1 input video signal matches the frequency and phase of 1 output signal?
I have gone over the SDK information and I wonder if I can do that with these methods:
- IDeckLinkInput::GetHardwareReferenceClock
- IDeckLinkOutput::GetHardwareReferenceClock
I cannot understand clearly what is the information provided through the output parameters: hardwareTime, timeInFrame and ticksPerFrame. Could you explain further, please?
Is there any other method we should use instead of this?
On the other hand. would it be necessary to plug some Genlock to REF IN?
Thanks in advance
KR
Alvaro
My company is designing a test bench to verify some video requirements from our systems. We have already used Decklink Quad 2 in other projects, but this time we need one particular capability and I would like to confirm that Quad 2 (or Duo 2) can fit.
Is it possible to verify that the clock reference of 1 input video signal matches the frequency and phase of 1 output signal?
I have gone over the SDK information and I wonder if I can do that with these methods:
- IDeckLinkInput::GetHardwareReferenceClock
- IDeckLinkOutput::GetHardwareReferenceClock
I cannot understand clearly what is the information provided through the output parameters: hardwareTime, timeInFrame and ticksPerFrame. Could you explain further, please?
Is there any other method we should use instead of this?
On the other hand. would it be necessary to plug some Genlock to REF IN?
Thanks in advance
KR
Alvaro