如何使用cv2.VideoCapture接收tello udp流

import cv2
import numpy as np
import time
import threading

import socket

# Tello无人机的IP和端口
tello_ip = '192.168.10.1'
tello_port = 8889

# 本地IP和端口
local_ip = ''
local_port = 9000

# 创建UDP socket
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.bind((local_ip, local_port))

# 发送命令以启动视频流
sock.sendto(b'command', (tello_ip, tello_port))
sock.sendto(b'streamon', (tello_ip, tello_port))

def receive_video():
    # 创建视频捕获对象
    cap = cv2.VideoCapture('udp://@' + tello_ip + ':11111')

    while True:
        # 读取视频帧
        ret, frame = cap.read()

        if ret:
            # 在窗口中显示视频帧
            cv2.imshow('Tello Video Stream', frame)

        # 按下'q'键退出循环
        if cv2.waitKey(1) & 0xFF == ord('q'):
            break

    # 释放视频捕获对象和关闭窗口
    cap.release()
    cv2.destroyAllWindows()

# 创建一个线程来接收视频流
video_thread = threading.Thread(target=receive_video)
video_thread.start()