Example of how to use the ofxLinkDeck addon to interface a decklink capture card.

testApp.cpp

#include "testApp.h"

//--------------------------------------------------------------
void testApp::setup(){
  ldeck.listDevices();
  // ldeck.setup(0, bmdModePAL, bmdFormat8BitYUV);

  if(!ldeck.setup(0, bmdFormat8BitYUV, bmdModePAL)) {
    printf("error: cannot get decklink setup.\n");
    ::exit(EXIT_FAILURE);
  }
  
  if(!ldeck.start()) {
    printf("error: cannot start the decklink device.\n");
    ::exit(EXIT_FAILURE);
  }
  
  img.allocate(ldeck.getWidth(), ldeck.getHeight(), OF_IMAGE_COLOR);
}

//--------------------------------------------------------------
void testApp::update(){

}

//--------------------------------------------------------------
void testApp::draw(){

  if(ldeck.hasNewFrame()) {
    ldeck.lock();
      img.setFromPixels(ldeck.getPixels(), ldeck.getWidth(), ldeck.getHeight(), OF_IMAGE_COLOR);
    ldeck.unlock();
    ldeck.resetHasNewFrame();
  }
  img.draw(0, 0, ldeck.getWidth(), ldeck.getHeight());
}

//--------------------------------------------------------------
void testApp::keyPressed(int key){

}

//--------------------------------------------------------------
void testApp::keyReleased(int key){

}

//--------------------------------------------------------------
void testApp::mouseMoved(int x, int y){

}

//--------------------------------------------------------------
void testApp::mouseDragged(int x, int y, int button){

}

//--------------------------------------------------------------
void testApp::mousePressed(int x, int y, int button){

}

//--------------------------------------------------------------
void testApp::mouseReleased(int x, int y, int button){

}

//--------------------------------------------------------------
void testApp::windowResized(int w, int h){

}

//--------------------------------------------------------------
void testApp::gotMessage(ofMessage msg){

}

//--------------------------------------------------------------
void testApp::dragEvent(ofDragInfo dragInfo){ 

}

testApp.h

#pragma once

#include "ofMain.h"
#include <ofxLinkDeck/ofxLinkDeck.h>


class testApp : public ofBaseApp{
	public:
		void setup();
		void update();
		void draw();
		
		void keyPressed(int key);
		void keyReleased(int key);
		void mouseMoved(int x, int y);
		void mouseDragged(int x, int y, int button);
		void mousePressed(int x, int y, int button);
		void mouseReleased(int x, int y, int button);
		void windowResized(int w, int h);
		void dragEvent(ofDragInfo dragInfo);
		void gotMessage(ofMessage msg);

    ofxLinkDeck ldeck;
    ofImage img;
};