Index: OpenSceneGraph/trunk/src/osgPlugins/ffmpeg/FFmpegDecoderAudio.cpp
===================================================================
--- OpenSceneGraph/trunk/src/osgPlugins/ffmpeg/FFmpegDecoderAudio.cpp (revision 10925)
+++ OpenSceneGraph/trunk/src/osgPlugins/ffmpeg/FFmpegDecoderAudio.cpp (revision 10961)
@@ -113,4 +113,20 @@
 }
 
+void FFmpegDecoderAudio::setVolume(float volume)
+{
+    if (m_audio_sink.valid())
+    {
+        m_audio_sink->setVolume(volume);
+    }
+}
+
+float FFmpegDecoderAudio::getVolume() const
+{
+    if (m_audio_sink.valid())
+    {
+        return m_audio_sink->getVolume();
+    }
+    return 0.0f;
+}
 
 void FFmpegDecoderAudio::run()