OpenCV - RTSP stream not opening

Question

I have a RTPS streaming camera. The stream works fine when I test it with VLC:

vlc -vvv rtsp://192.168.0.23:554/stream

However with openCV it does not open:

cv::VideoCapture capture; bool ok = capture.open("rtsp://192.168.0.23:554/stream");

returns false.

What can be the reason?

score 2 · Answer 1 · answered Jun 06 '19 at 09:38

2

I had a similar problem. In my case the dll starts with "opencv_ffmpeg" was missing in the run path.

answered Jun 06 '19 at 09:38

Nocturne

21
3

Guys, this is actually a correct answer! Well maybe there are some other cases, but adding 'opencv_ffmpeg320_64.dll' (chose your version) fixed my case. Thank you – Alexander Lyapin Mar 26 '20 at 19:01

score 1 · Answer 2 · answered Oct 13 '20 at 06:57

If you are using OpenCV 4+ you need to copy the ffmpeg related dll and paste it next to your executable. For example I've built my OpenCV with the BUILD_opencv_world option and I have a file named opencv_videoio_ffmpeg430_64.dll in my bin folder in the my build directory. Without that file it won't open the stream and shows nothing.

score -1 · Answer 3 · answered Feb 10 '20 at 05:50

-1

When using the VideoCaptuer class with OpenCV 4, in C++, it does not work with RTSP streams.

answered Feb 10 '20 at 05:50

Faizan Cassim

19
6

score -2 · Answer 4 · answered May 21 '19 at 06:17

-2

you can do it by OpenCV and python as below:

import cv2
str1=cv2.VideoCapture("RTSP Address")
while True:
    _,frame=str1.read()
    cv2.imshow('SOMENAME',frame)
    s=cv2.waitkey(0)

answered May 21 '19 at 06:17

Jafar Tavana

1
1

1

adding an explanation to the answer would help – Anantha Raju C May 21 '19 at 06:23
explanations about which section ! ? – Jafar Tavana Jan 08 '20 at 13:45

OpenCV - RTSP stream not opening

4 Answers4