Index: OpenSceneGraph/trunk/include/osg/ImageStream
===================================================================
--- OpenSceneGraph/trunk/include/osg/ImageStream (revision 9827)
+++ OpenSceneGraph/trunk/include/osg/ImageStream (revision 9910)
@@ -79,5 +79,6 @@
 
         virtual double getLength() const { return 0.0; }
-        
+        virtual double getFrameRate() const { return 0.0; } 
+
         virtual void setReferenceTime(double) {}
         virtual double getReferenceTime() const { return 0.0; }
@@ -88,5 +89,4 @@
         virtual void setVolume(float) {}
         virtual float getVolume() const { return 0.0f; }
-
 
         typedef std::vector< osg::ref_ptr<osg::AudioStream> > AudioStreams;