-fixed initialising Variables problem at starting video new

bbiwarg/VideoHandle.cs

@@ -40,6 +40,7 @@ namespace bbiwarg
                     return videoFrame;
             }
         }
+        private int lastFrame = int.MaxValue;
 
         public OutputImage[] OutputImages { get; private set; }
         
@@ -58,7 +59,7 @@ namespace bbiwarg
 
         private TouchEventVisualizer touchEventVisualizer;
 
-        private int videoFrame = 1;
+        private int videoFrame = 0;
 
         public VideoHandle(IInputProvider inputProvider)
         {
@@ -124,9 +125,10 @@ namespace bbiwarg
 
         private void processFrameUpdate()
         {
+            bool newStarted = (lastFrame > CurrentFrame);
             Timer.start("processFrameUpdate");
 
-            if (CurrentFrame == 1) {
+            if (newStarted) {
                 //initialize trackers
                 touchTracker = new TouchTracker();
                 fingerTracker = new FingerTracker();
@@ -190,7 +192,7 @@ namespace bbiwarg
 
             //detect palm
             Timer.start("palmDetection");
-            if (CurrentFrame == 1)
+            if (newStarted)
                 palmDetector.reset();
             palmDetector.findPalmQuad(OutputImages[3], handDetector.Hands);
             Timer.stop("palmDetection");
@@ -234,7 +236,7 @@ namespace bbiwarg
             // touch event visualizer
             if (touchEventVisualizer == null)
                 touchEventVisualizer = new TouchEventVisualizer(Width, Height);
-            if (CurrentFrame == 1)
+            if (newStarted)
                 touchEventVisualizer.Reset();
             if (palmTouchDetector != null)
             {
@@ -254,6 +256,7 @@ namespace bbiwarg
             }
 
             Timer.stop("processFrameUpdate");
+            lastFrame = CurrentFrame;
         }
     }
 }