0.10 hasn't been maintained for 4+ years now. See if you can update to 1.10 -- View this message in context: http://gstreamer-devel.966125.n4.nabble.com/Using-GStreamer-to-realize-multimedia-stream-transcoding-tp4682154p4682160.html Sent from the GStreamer-devel mailing list archive at Nabble.com.