Boxed updates

MP4/box_stbl.h

@@ -0,0 +1,17 @@
+#include "box.h"
+#include <vector>
+#include <string>
+
+class Box_stbl {
+  public:
+    Box_stbl();
+    ~Box_stbl();
+    Box * GetBox();
+    void AddContent( Box * newcontent, uint32_t offset = 0 );
+  private:
+    Box * Container;
+
+    void WriteContent( );
+    std::vector<Box *> Content;
+};//Box_ftyp Class
+