Index: OpenSceneGraph/trunk/src/osgPlugins/ffmpeg/FFmpegImageStream.cpp
===================================================================
--- OpenSceneGraph/trunk/src/osgPlugins/ffmpeg/FFmpegImageStream.cpp (revision 10851)
+++ OpenSceneGraph/trunk/src/osgPlugins/ffmpeg/FFmpegImageStream.cpp (revision 10961)
@@ -153,4 +153,13 @@
 }
 
+void FFmpegImageStream::setVolume(float volume)
+{
+    m_decoder->audio_decoder().setVolume(volume);
+}
+
+float FFmpegImageStream::getVolume() const
+{
+    return m_decoder->audio_decoder().getVolume();
+}
 
 double FFmpegImageStream::getLength() const