Connect to RTSP URL from OpenCV

asked 2018-01-24 13:33:07 -0500

malharjajoo gravatar image

updated 2018-01-24 13:34:29 -0500

I am currently working on a project that requires me to interface with an IP camera (Company name: sricam) using openCV 3.3.1. I am using sricam SP019 IP(Wireless) camera. I have been able to find the RTSP URL for my camera: "rtsp://IP_ADDRESS:554/onvif1" and also managed to play it in VLC and the onvifer Android app provided.

As an extra, the app also provided the following info -

  • Encoding: H264
  • Transport Protocol: RTP/RTSP/TCP
  • RTSP port: 554

Issue: But I keep getting this error related to the Gstreamer library.-

GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed

What I have tried (and hasn't worked)-

  • Recompiling OpenCV from scratch ensuring FFMPEG and Gstreamer cmake Options are enabled(=ON). Also recompiled OpernCV versions 3.3.1 and 3.1.0 but didn't work.

  • Switching backends (ffmpeg and gstreamer) using flags in cv::VideoCapture( )

What I have tried (and has worked)-

  • Using the VLC player: Media->Open Network stream commands, I can view the camera feed properly, which means the issue seems only in OpenCV side and not on the camera side.
  • The big buck bunny wowza URL plays fine - rtsp://

It would be extremely helpful if someone can just point me in the right direction as a minimum.


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