diff -ruN OpenSceneGraph-3.0.1/src/osgPlugins/ffmpeg/FFmpegHeaders.hpp my/src/osgPlugins/ffmpeg/FFmpegHeaders.hpp
--- OpenSceneGraph-3.0.1/src/osgPlugins/ffmpeg/FFmpegHeaders.hpp	2011-06-17 10:41:56.000000000 +0200
+++ my/src/osgPlugins/ffmpeg/FFmpegHeaders.hpp	2011-11-17 19:44:33.194607494 +0100
@@ -9,12 +9,13 @@
 #define FF_API_OLD_SAMPLE_FMT 0
 #include <errno.h>    // for error codes defined in avformat.h
 #include <stdint.h>
-#include <avcodec.h>
-#include <avformat.h>
-#include <avdevice.h>
+#include <libavcodec/avcodec.h>
+#include <libavformat/avformat.h>
+#include <libavdevice/avdevice.h>
+#include <libavutil/mathematics.h>
 
-#ifdef USE_SWSCALE    
-    #include <swscale.h>
+#ifdef USE_SWSCALE
+    #include <libswscale/swscale.h>
 #endif
 
 }