Hi HanJIK,
If you are using linux , Install Gstreamer on your computer and simply run the command " gst-launch-1.0 -e -v udpsrc port=5600 ! application/x-rtp, payload=96 ! rtpjitterbuffer ! rtph264depay ! avdec_h264 ! fpsdisplaysink sync=false text-overlay=true"
Thanks