Add limited range rendering for rendering YUV non-full range sources

libobs/obs.h

@@ -166,6 +166,9 @@ struct source_frame {
 
 	enum video_format   format;
 	float               color_matrix[16];
+	bool                full_range;
+	float               color_range_min[3];
+	float               color_range_max[3];
 	bool                flip;
 };