Doesn't work nvv4l2decoder for decoding RTSP in gstreamer + opencv

Autonomous Machines Jetson & Embedded Systems Jetson Nano
3

Hi,
We try to launch public RTSP source and it works fine:

import sys
import cv2

def read_cam():
    cap = cv2.VideoCapture("rtspsrc location=rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mov ! rtph264depay ! h264parse ! nvv4l2decoder ! nvvidconv ! video/x-raw, format=(string)BGRx ! videoconvert ! video/x-raw,format=BGR ! appsink ")
    if cap.isOpened():
        cv2.namedWindow("demo", cv2.WINDOW_AUTOSIZE)
        while True:
            ret_val, img = cap.read();
            cv2.imshow('demo',img)
            cv2.waitKey(10)
    else:
     print "rtsp open failed"

    cv2.destroyAllWindows()


if __name__ == '__main__':
    read_cam()

FYR.

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