I removed h264parse element, the pipeline can be set to PLAYING, So I think maybe it results from h264parse. Any suggestions? Thanks, -- View this message in context: http://gstreamer-devel.966125.n4.nabble.com/pipeline-cannot-play-halted-in-PAUSE-tp4672464p4672564.html Sent from the GStreamer-devel mailing list archive at Nabble.com.