Hi Vinod, Thank you for the suggestion. I do send EOS in my application. But it doesn't help. -jarvis -- View this message in context: http://gstreamer-devel.966125.n4.nabble.com/Does-mp4mux-really-support-opus-tp4676842p4676845.html Sent from the GStreamer-devel mailing list archive at Nabble.com.