read frame from capture card deck link 4k extream

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  • Posts: 3
  • Joined: Sun Aug 19, 2018 6:36 pm
  • Real Name: mache hoffman

read frame from capture card deck link 4k extream

PostSat Oct 13, 2018 2:38 pm

i am having problem starting with the sdk .
can anyone help me read frames from the camera?
my set up is sony fdr ax 100 (via hdmi)-->teranex mini converter (sdi)-->decklink 4k extream .
how do do i read frame in c++ project?where can i find sample code i have tried the samples from bm site in vs 2017 and nothing worked.
thank you !

Cameron Nichols

Blackmagic Design

  • Posts: 235
  • Joined: Mon Sep 04, 2017 4:05 am

Re: read frame from capture card deck link 4k extream

PostThu Oct 18, 2018 4:02 am

Hi Mache,

To capture video frames with the DeckLink-SDK you need to subclass the IDeckLinkInputCallback interface. This interface defines the VideoInputFrameArrived callback providing the incoming frame.

A high level overview of the capture process can be found in the DeckLink SDK Manual - section 2.4.1 Capture. Also have a look at the Linux Capture sample which captures and stores out raw video to file.

Can you please provide further detail on the issues you see with VS2017? Have you stepped through debug to determine where the samples are failing?



  • Posts: 2
  • Joined: Wed Oct 24, 2018 5:09 am
  • Real Name: David Jordan

Re: read frame from capture card deck link 4k extream

PostWed Oct 24, 2018 5:16 am

Does anyone know what Decklink drivers work consistently for this plugin? We get lockups in the driver just using the demo provided with the package. When the driver locks up you have to restart the entire PC. We are using a Decklink Quad card. On top of all that, the device indexes change every time you seat the card in the pc. Has anyone had any luck with or solving any of these issues?
Thanks in advance, Regards,

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