1 files changed, 6 insertions, 1 deletions
diff --git a/lib/frame.h b/lib/frame.h
index 988f460..66c2ce7 100644
--- a/lib/frame.h
+++ b/lib/frame.h
@@ -28,12 +28,15 @@
 #ifndef __FRAME_H__
 #define __FRAME_H__
 
+#define START_USE_FRAME(x) x->usage++
+#define STOP_USE_FRAME(x) if(--x->usage == 0) delete x; x = NULL
+
 // Definition of vector
 #include <vector>
 
 class Frame {
 public:
-  Frame(unsigned char *d, int sz);
+  Frame(unsigned char *d, int sz = 0);
   ~Frame();
   
   unsigned char *data;
@@ -51,6 +54,8 @@ public:
   char timecode[12];
 
   bool endOfFrameStream;
+
+  int usage;
 };
 
 typedef std::vector< Frame* > FrameVector;