Originally committed as revision 25502 to svn://svn.ffmpeg.org/ffmpeg/trunk
Originally committed as revision 25442 to svn://svn.ffmpeg.org/ffmpeg/trunk
Also link avfiltergraph.o and graphparser.o against libavfilter, as it uses them. Originally committed as revision 22063 to svn://svn.ffmpeg.org/ffmpeg/trunk