I am getting this error error: (-2:Unspecified error) could not open

vedioStream = new VideoCapture();
vedioStream.setExceptionMode(true);
boolean openStatus =vedioStream.open(“rtsp://root:55555dgfg@201.201.201.191:554/axis-media/media.amp?camera=1&videocodec=h264”);
image = new Mat();
vedioStream.read(image);

please clarify:
exact opencv version ?
is this really on android ?
what does System.out.println(Core.getBuildInformation()); print ?