Live video chat app using open cv2 Python module.

The motive of this task is to make a video call between server and client so for this, we need to make a server and client.

Creating Server-side scripting

First we have to import socket , cv2, pickle , struct and imutils libraries.

import socket, cv2, pickle, struct, imutils

Now we have to create a socket

server_socket = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
host_name = socket.gethostname()
host_ip = socket.gethostbyname(host_name)
port = 9999
socket_address = (host_ip,port)

Bind the socket

server_socket.bind(socket_address)

Socket Listen

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=680)

a = pickle.dumps(frame) message = struct.pack(“Q”,len(a))+a

client_socket.sendall(message)

cv2.imshow(‘TRANSMITTING VIDEO’,frame)

key = cv2.waitKey(1) & 0xFF

if key ==13 or key ==113 or key==81: msg=”q”

client_socket.send(msg.encode())

client_socket.close()

cv2.destroyAllWindows()

Now we have created a server-side socket.

Creating Client-side scripting

So as server-side socket same as we have to import python libraries

import socket, cv2, pickle, struct, imutils

Now we can create our client-side socket

client_socket = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
host_ip = ‘192.168.56.1’ # paste your server ip address here
port = 9999
client_socket.connect((host_ip,port)) # a tuple
data = b

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 ==13 or key ==113 or key==81:

cv2.destroyAllWindows()
break
client_socket.close()

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