Add StkFrames constructor that wraps pointer to existing buffer

include/Stk.h

@@ -285,6 +285,9 @@ public:
   //! Overloaded constructor that initializes the frame data to the specified size with \c value.
   StkFrames( const StkFloat& value, unsigned int nFrames, unsigned int nChannels );
 
+  //! Overloaded constructor that wraps the provided pointer to \c data.
+  StkFrames( StkFloat* data, unsigned int nFrames, unsigned int nChannels = 1 );
+
   //! The destructor.
   ~StkFrames();
 
@@ -440,6 +443,7 @@ private:
   unsigned int nChannels_;
   size_t size_;
   size_t bufferSize_;
+  bool ownData_;
 
 };