Install

sudo apt-get install libgstreamer1.0-0 gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-libav gstreamer1.0-doc gstreamer1.0-tools gstreamer1.0-x gstreamer1.0-alsa gstreamer1.0-gl gstreamer1.0-gtk3 gstreamer1.0-qt5 gstreamer1.0-pulseaudio -y

gst-launch-1.0 v4l2src device="/dev/video0" ! videoconvert ! autovideosink

gst-launch-1.0 v4l2src device="/dev/video0" ! videoconvert ! clockoverlay ! autovideosink

gst-launch-1.0 rtspsrc location="rtsp://freja.hiof.no:1935/rtplive/_definst_/hessdalen03.stream" ! \
rtph264depay ! avdec_h264 ! clockoverlay ! autovideosink

http://4youngpadawans.com/stream-live-video-to-browser-using-gstreamer/

Host

sudo gst-launch-1.0 -v v4l2src device=/dev/video0 ! "image/jpeg,width=1280, height=720,framerate=30/1" ! rtpjpegpay ! udpsink host=200.200.200.185 port=5000

Client

sudo gst-launch-1.0 -e -v udpsrc port=5000 ! application/x-rtp, encoding-name=JPEG,payload=26 ! rtpjpegdepay ! jpegdec ! autovideosink