How to get video frame by frame from stream using openCV and python

Question

I'm using VLC media player to stream .mp4 video using http. Streaming works fine (i was able to attach to this stream using another instance of VLC). Now I want to connect to this stream using OpenCV with python 2.7 and get video frame by frame.

This is modified tutorial code (which works perfectly fine with local file):

<code>
import numpy as np
import cv2    
address = '10.0.0.71' # this is my stream ip address
port = 8080 # this is stream port

# should I use socket somehow?
# found this somewhere, no idea what this do
# import socket
# msocket = socket.socket(socket.AF_INET,socket.SOCK_STREAM) 
# msocket.connect((address, port))

cap = cv2.VideoCapture('file.mp4') # how to use VideoCapture with online stream?     

# just showing video to screen
while(cap.isOpened()):
    ret, frame = cap.read()
    cv2.imshow('frame', frame)

    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

cap.release()
cv2.destroyAllWindows()

Please help.

answers.opencv.org/question/3664/ip-network-camera-access

udit043
– udit043

2016-03-28 19:23:47 +00:00
Commented Mar 28, 2016 at 19:23 — udit043
– udit043, Commented Mar 28, 2016 at 19:23

kev · Accepted Answer · 2016-06-03 16:25:38Z

3

http://answers.opencv.org/question/24154/how-to-using-opencv-api-get-web-video-stream/

You should be able to just cap = cv2.VideoCapture('yourStreamURIHere')

If you need to login to the stream, for example some stream at 127.0.0.1 with username: hello, password: goodbye:

cap = cv2.VideoCapture('http://hello:[email protected]/?action=stream?otherparamshere)

answered Jun 3, 2016 at 16:25

kev

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Comments

abhiTronix · Accepted Answer · 2019-07-25 15:04:48Z

0

I'm kind of late but I've created powerful & threaded VidGear Video Processing python library that now provides NetGear API, which is exclusively designed to transfer video frames synchronously between interconnecting systems over the network in real-time through ZmQ messaging system. For usage example, check my detailed answer here: https://stackoverflow.com/a/57205019/10158117

answered Jul 25, 2019 at 15:04

abhiTronix

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