RTSP Viewer
RTSP_PATH=rtsp://id:pwd@1.1.1.1:3000/Streaming/Channels/101/
gst-launch-1.0 rtspsrc location="$RTSP_PATH" latency=500 ! rtph264depay ! h264parse ! nvv4l2decoder enable-max-performance=1 ! nvoverlaysink overlay-x=800 overlay-y=50 overlay-w=640 overlay-h=480 overlay=2