（Python）OpenCV帧通过套接字发送

Question

我正在尝试通过套接字发送OpenCV的帧，如下面的代码。 问题是视频最终变得怪异，分成多行或多列。

（Python 2.7）

ob：这段代码不是我的。

来源：http://answers.opencv.org/question/69123/sending-opencv-frames-through-udp-socket-python/

客户端：

import socket
import numpy as np
import cv2


UDP_IP = "127.0.0.1"
UDP_PORT = 5005

cap = cv2.VideoCapture(0)
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
while 1:
    ret, frame = cap.read()
    cv2.imshow('frame', frame)

    d = frame.flatten()
    s = d.tostring()
    for i in range(20):
        sock.sendto(s[i*46080:(i+1)*46080], (UDP_IP, UDP_PORT))
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

cap.release()
cv2.destroyAllWindows()

服务器：

import socket
import numpy as np
import cv2


UDP_IP = "127.0.0.1"
UDP_PORT = 5005

sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.bind((UDP_IP, UDP_PORT))
s = ""
while True:
    data, addr = sock.recvfrom(46080)
    s += data
    if len(s) == (46080*20):
        frame = np.fromstring(s, dtype='uint8')
        frame = frame.reshape(480, 640, 3)
        cv2.imshow('frame', frame)
        s = ""
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break