discarding frames at the start

ppg.cpp

@@ -96,22 +96,43 @@ int main()
     //! [start]
 
     cv::Mat rgbmat;
+    
+    bool isDiscardData = true;
+    int countDiscard = 0;
+    const int DISCARD_DURATION = 5;//maybe do a float?
+    const int FPS = 30;//can actually switch to 15fps in low light, but for this application it is not very important
 
+    std::cout << "beginning loop" << std::endl;
     while(!protonect_shutdown)
     {
         listener.waitForNewFrame(frames);
         libfreenect2::Frame *rgb = frames[libfreenect2::Frame::Color];
         cv::Mat(rgb->height, rgb->width, CV_8UC4, rgb->data).copyTo(rgbmat);
-        cv::imshow("rgb", rgbmat);
-        
+
         if(cv::waitKey(1) >= 0){//the listener waits for frames, there is no need to limit speed ourselves
 
             protonect_shutdown = true;
         }
 
-
-
         listener.release(frames);
+        
+        
+        
+        
+        cv::imshow("rgb", rgbmat);
+        
+        if(isDiscardData){
+            countDiscard++;
+            if(countDiscard == DISCARD_DURATION*FPS){
+                isDiscardData = false;
+                std::cout << "not discarding data anymore" << std::endl;
+            }
+            
+            continue;
+        }
+        
+        
+        
     }
     //! [loop end]