Hi All, I am new to gstreamer.I am using pipeline below mentioned for playing Video and Audio from Live source. gst-launch rtspsrc location=rtsp://<a href="http://192.168.1.168:8554/mpeg4">192.168.1.168:8554/mpeg4</a> latency=10 name=demux demux. ! queue! rtpmp4vdepay ! mpeg4videoparse ! dmaidec_mpeg4 ! TIDmaiVideoSink sync=false videoOutput=LCD videoStd=320X240 demux. ! queue ! rtppcmudepay ! mulawdec ! alsasink Above Pipeline is working with proper Audio and Video sync.When I was testing the Video and Audio sync by running the above pipeline so many times,Sometimes Audio got delayed about half second. I am getting this warning mentioned below ../../../../src/gst-libs/gst/audio/gstbaseaudiosink.c(1449): gst_base_audio_sink_render (): /GstPipeline:pipeline0/GstAlsaSink:alsasink0: Unexpected discontinuity in audio timestamps of more than half a second (0:00:00.569375000), resyncing thanks and regards, Arasu.M