Example #1
0
 def connect(self, topic, addr, port):
     addr = get_ip()
     port = 9500
     self.sock.connect((addr, port))
     print("Client:")
     print("  remote:", self.sock.sock.getpeername())
     print("  local:", self.sock.sock.getsockname())
     self.topic = topic
Example #2
0
def client(e):
    unpacker = Sensor("<3dL")

    def myfunc(data):
        d = unpacker.unpack(data)
        print(f">> Received {d}[{len(data)}]")

    sub = Subscriber()
    sub.connect("bob", get_ip(), 9500)
    sub.event = e

    sub.subscribe("bob", myfunc)
    sub.loop()
    print("end client ------------------")
Example #3
0
 def bind(self, topic, port=None):
     addr = get_ip()
     self.sock.bind(addr, port)
     addr, port = self.sock.bindaddress
     print(f">> Binding for {topic} on {addr}:{port}")
     self.topic = topic
Example #4
0
def main():
    args = handle_args()

    # if args["version"]:
    #     print(f">> udp_server version {version}")
    #     exit(0)

    port = args["port"]
    host = args["host"]
    if host is None:
        host = get_ip()
    jpeg_quality = args["quality"]
    size = args["size"]
    camera = args["camera"]
    gray = args["grayscale"]
    # gray = True

    grabber = VideoGrabber(jpeg_quality, size, camera, gray)
    grabber.daemon = True
    grabber.start()

    running = True

    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

    # Bind the socket to the port
    server_address = (host, port)
    # address = server_address

    print(f'{host_name}[{host}]:{port} at {size}\n')

    sock.bind(server_address)
    try:
        while running:
            try:
                data_packed, address = sock.recvfrom(struct.calcsize('<L'))
                data = struct.unpack('<L', data_packed)[0]
                if data == 1:
                    buffer = grabber.get_buffer()

                    if buffer is None:
                        sock.sendto(struct.pack('<L', struct.calcsize('<L')),
                                    address)
                        sock.sendto(struct.pack('<L', 404),
                                    address)  #capture error
                        continue

                    # print(len(buffer))

                    if len(buffer) > MAX_PACKET_SIZE:
                        split = MAX_PACKET_SIZE  #65000
                        num = len(buffer) // split
                        rem = len(buffer) % split
                        print(f"{num} {rem}")
                        sock.sendto(struct.pack('<LB', len(buffer), num + 1),
                                    address)

                        for i in range(num):
                            sock.sendto(buffer[i * split:i * split + split],
                                        address)
                        sock.sendto(buffer[-rem:], address)
                        continue
                    sock.sendto(struct.pack('<LB', len(buffer), 1), address)
                    sock.sendto(buffer, address)
                elif data == 0:
                    grabber.stop()
                    running = False
            except Exception as e:
                bb = buffer
                # print(bb)
                print(
                    f"{Fore.RED}*** {e} buffer: {len(bb)} {type(bb)} ***{Fore.RESET}"
                )
                time.sleep(1)
    except KeyboardInterrupt:
        print("ctrl-C ...")

    grabber.stop()
    running = False
    print("Quitting..")
    grabber.join()
    sock.close()