Getting RTSP stream with Opencv and python

Question

I know this could be the 100th question of this kind, but I dug up google and everything, and I could not find anything working.
I need to get an RTSP stream with opencv in python, and I'm out of ideas.
Here's what I tried so far:

Tried to stream with ffserver and ffmpeg but even when I got it working, I could see the stream only in the browser with very high latency, and not working in opencv
Tried to stream directly to udp with ffmpeg but again, no luck
Tried this script, but all I got was corrupted and unusable images.

Any ideas? I'm running on Mac OSX Sierra, I have compiled OpenCV 3.2.0 with ffmpeg support and I'm using Python 2.7.
My cam is a Sricam SP09 and my RTSP url is the following:

rtsp://973704:[email protected]:554/onvif1

We used to make do with just cap=cv2.VideoCapture("rtsp://link_here"). But if it wasn't good on ffserver, it seems like your stream doesn't work quite well. — Quang Hoang
– Quang Hoang, Commented May 3, 2017 at 1:17
I've read that opencv does not behave quite well with the rtsp protocol, hence the need to use ffserver. I'm convinced that I'm doing something wrong with ffserver, because often I cannot see the stream on my browser too :/ — magicleon94
– magicleon94, Commented May 3, 2017 at 8:01

hyung ook An · Accepted Answer · 2019-10-23 07:18:51Z

1

I had the same problem. You might be able to solve it with some additional codes.

import os

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

vcap = cv2.VideoCapture("rtsp://[IP_CAM_ADDRESS]", cv2.CAP_FFMPEG)

Hope to be helpful to somebody.

edited Oct 23, 2019 at 7:18

answered Sep 24, 2019 at 9:32

hyung ook An

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