gst-inspect-1.0 avdec_h264 will probably give you: indicating that it is missing. As suggested above, install gst-libav -- View this message in context: http://gstreamer-devel.966125.n4.nabble.com/missing-a-plug-in-tp4678291p4678432.html Sent from the GStreamer-devel mailing list archive at Nabble.com.