Frame Buffer as RTSP stream

Question

I have a RTSP viewer on a small local network that I would like to use as a monitor. I'ts really just to access the CLI in the event that an automated service on a Rspberry pi doesn't start or run correctly.

so far I have this script using gstreamer, but I can't seem to connect to it. It appears that the server is running but I can't connect to it.

I have shutdown the firewall and have verified that the port is open with netstat. I'mnot sure what do try next.

    import gi
gi.require_version('Gst', '1.0')
gi.require_version('GstRtspServer', '1.0')
from gi.repository import Gst, GstRtspServer, GLib

class CLI_RTSPServer(GstRtspServer.RTSPMediaFactory):
    def __init__(self):
        super(CLI_RTSPServer, self).__init__()
        #self.set_launch("( fbdevsrc device=/dev/fb0 ! videoconvert ! x264enc tune=zerolatency ! rtph264pay name=pay0 pt=96 )")
        self.set_launch("( fbdevsrc device=/dev/fb0 ! videoscale ! video/x-raw,width=640,height=480 ! videoconvert ! x264enc tune=zerolatency bitrate=500 ! rtph264pay name=pay0 pt=96 )")

if __name__ == "__main__":
    Gst.init(None)
    server = GstRtspServer.RTSPServer()
    factory = CLI_RTSPServer()
    factory.set_shared(True)
    server.set_service("554")  # Bind to the default RTSP port 554
    server.get_mount_points().add_factory("/cli", factory)
    server.attach(None)

    print("RTSP server is running at rtsp://localhost:8554/cli")
    loop = GLib.MainLoop()
    loop.run()