沒有得到來自cv2.VideoCapture視頻，鸚鵡AR無人機

Question

我不是從cv2.VideoCapture，鸚鵡AR無人機獲取視頻：ret總是False

import numpy as np 
import cv2 

cap = cv2.VideoCapture("tcp://192.168.1.1:5555") 

ret, frame = cap.read() 

print ret 

cap.release() 
cv2.destroyAllWindows() 

Answer 1

I am not used to Python, but If it was in Windows I will first check whether cap is getting frames from the given IP Address using: 

if(!cap.IsOpened()) 
{ 
cerr <<"No video Frames were read, please check your IP and Port" <<endl; 
return -1; 
} 

This will easily help me know whether I am fetching from the Drone or not. 

//Secondly, we have to check for the case where we are able to fetch from the drone.. 

while(true) 
{ 
cap >>frame; 
char c = waitkey(10); 
if(c== 27) break 
}