CODEWITHSUNDEEP
opencv
Muhammet PARLAK
Muhammet PARLAK

Reputation: 81

OpenCV Python RTSP stream

I want to stream the video from IP camera by using RTSP. But I am having a problem. I have installed prerequirements and also, my RTSP link works on VlC player. But when I tried it in the editor and run it, it says Camera could not be found.
Here is my code.

import cv2
import numpy as np
cap = cv2.VideoCapture("rtsp://admin:[email protected]:xxx/media/video1/video")

while True:
    ret, img = cap.read()
    if ret == True:
    cv2.imshow('video output', img)
    k = cv2.waitKey(10)& 0xff
    if k == 27:
        break
cap.release()
cv2.destroyAllWindows()

Upvotes: 4

Views: 16120

Answers (2)

Ollie Graham
Ollie Graham

Reputation: 132

I was able to solve opening an RTSP stream with OpenCV (built with FFMPEG) in Python by setting the following environment variable:

import os
os.environ["OPENCV_FFMPEG_CAPTURE_OPTIONS"] = "rtsp_transport;udp"

FFMPEG defaults to TCP transport, but some RTSP feeds are UDP, so this sets the correct mode for FFMPEG.

Then use:

cv2.VideoCapture(<stream URI>, cv2.CAP_FFMPEG)

ret, frame = cap.read()

while ret:
    cv2.imshow('frame', frame)
    # do other processing on frame...

    ret, frame = cap.read()
    if (cv2.waitKey(1) & 0xFF == ord('q')):
        break

cap.release()
cv2.destroyAllWindows()

as usual.

Upvotes: 3

Shawn Mathew
Shawn Mathew

Reputation: 2337

Do check your installation of opencv has the capability to open videos. for this try

cap=cv2.VideoCapture(r"path/to/video/file")
ret,img=cap.read()
print ret

If ret is True then your opencv install has the codecs necessary to handle videos and then confirm that the RTSP address is correct.

If ret is False then reinstall opencv using the steps here. I would recommend building opencv from source. But try the pre-built libraries first.

Upvotes: 3

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