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How to register and use a callback to capture images from a DeckLink device

Hi everyone,

 

I have to pilot a DeckLinck video graber , to capture video and sound data from it.

 

My problems are about the callback :

  • First, the SDK indicates that we have to declare a callback (IDecklinkInput, method Setcallback), but this method nodes doesn't accept a static vi reference.
  • Second, when connecting the Register for event node, I have not event to choose...
  • Third, I think the callback VI should contain IDeckLinkCallBack, method VideoInputFrameArrived... but I'm not sure of that, because this method has only inputs (that I don't know how to fill), as I'd prefer some outputs (like video or sound datas)...

 

 If you've already met this board, your help will be very appriciated.

 

 thanks in advance

 

Philippe

Message Edité par Ficare le 03-21-2010 06:30 PM
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Could you include a copy of the VIs you are using?  I am also working on something similar with Decklink cards.
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Hi,

 

after several tests, I understood that I couldn't achieve what I wanted with LabVIEW. I found a workaround with direct X.

 

BR

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