gstreamer/gstreamer-sharp/TunerNorm.custom

		[DllImport ("gstreamersharpglue-0.10")]
		extern static uint gst__interfacessharp_gst__interfaces_tunernorm_get_framerate_offset ();

		static uint framerate_offset = gst__interfacessharp_gst__interfaces_tunernorm_get_framerate_offset ();
		public Gst.Fraction Framerate {
			get {
				unsafe {
					IntPtr raw_ptr = (IntPtr)(((byte*)Handle) + framerate_offset);
					GLib.Value v = (GLib.Value) Marshal.PtrToStructure (raw_ptr, typeof (GLib.Value));
					return (Gst.Fraction) v.Val;
				}
			}
		}

		[DllImport ("gstreamer-0.10.dll") ]
		private static extern void gst_value_set_fraction (IntPtr v, int numerator, int denominator);

		public TunerNorm (string label, Gst.Fraction framerate) {
		    unsafe {
		    	IntPtr* raw_ptr = (IntPtr*) ( ( (byte*) Handle) + label_offset);
			*raw_ptr = GLib.Marshaller.StringToPtrGStrdup (label);

		    }
		    unsafe {
		        IntPtr raw_ptr = (IntPtr)(((byte*)Handle) + framerate_offset);
			gst_value_set_fraction (raw_ptr, framerate.Numerator, framerate.Denominator);
		    }			
		}