For creating live streaming video chat we have to install the the library that are mentioned below:

1.pip install opencv-python
2.pip install sockets
3.pip install pickle-mixin
4.pip install imutils

First we have to write the server program:

import socket, cv2, pickle,struct,imutils

Socket Create

server_socket = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
host_name = socket.gethostname()
host_ip = socket.gethostbyname(host_name)
print('HOST IP:',host_ip)
port = 9999
socket_address = (host_ip,port)

Socket Bind

server_socket.bind(socket_address)

Socket Listen

server_socket.listen(5)
print("LISTENING AT:",socket_address)

Socket Accept

while True:
client_socket,addr = server_socket.accept()
print('GOT CONNECTION FROM:',addr)
if client_socket:
vid = cv2.VideoCapture(0)

    while(vid.isOpened()):
        img,frame = vid.read()
        frame = imutils.resize(frame,width=320)
        a = pickle.dumps(frame)
        message = struct.pack("Q",len(a))+a
        client_socket.sendall(message)

        cv2.imshow('TRANSMITTING VIDEO',frame)
        key = cv2.waitKey()
        if key ==ord('return'):
            client_socket.close()

Client side Program :

lets mke the client code

import socket,cv2, pickle,struct

create socket

client_socket = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
host_ip = '192.168.43.35' # paste your server ip address here
port = 9999
client_socket.connect((host_ip,port)) # a tuple
data = b""
payload_size = struct.calcsize("Q")
while True:
while len(data) < payload_size:
packet = client_socket.recv(4*1024) # 4K
if not packet: break
data+=packet
packed_msg_size = data[:payload_size]
data = data[payload_size:]
msg_size = struct.unpack("Q",packed_msg_size)[0]

while len(data) < msg_size:
    data += client_socket.recv(4*1024)
frame_data = data[:msg_size]
data  = data[msg_size:]
frame = pickle.loads(frame_data)
cv2.imshow("RECEIVING VIDEO",frame)
key = cv2.waitKey(1) & 0xFF
if key  == ord('q'):
    break

client_socket.close()

After writing the code First we have run the server side program then we run client side Program.