From Guillaume Taze, "Here are some bugs fix :

- missing copy attribute _referenceFrame in ClipNode in copy constructor
- checked iterators against the end in osgText
- close codec context in ffmpeg plugin to avoid memory leak

"

src/osgPlugins/ffmpeg/FFmpegDecoderVideo.cpp

@@ -67,6 +67,11 @@ FFmpegDecoderVideo::~FFmpegDecoderVideo()
     }
 #endif
 
+    if (m_context)
+    {
+        avcodec_close(m_context);
+    }
+
     OSG_INFO<<"Destructed FFmpegDecoderVideo"<<std::endl;
 }