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pythonsocketsopencvvideoframe

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

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.

Solution

  • 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:goodbye@127.0.0.1/?action=stream?otherparamshere)