Reading mp4 file via gstreamer in opencv

Autonomous Machines Jetson & Embedded Systems Jetson Nano
18

This is using V4L API, not gstreamer API, so the messages are different.

Be sure the filepath is correct. This works fine for me:

import os
import cv2
print(cv2.__version__)

filepath = "/home/nvidia/Desktop/opencv/opencv/samples/data/Megamind.avi"
if os.system('ls -l '+filepath):
	print('Error file not found')
	exit()

cap = cv2.VideoCapture('filesrc location={} ! mpeg4videoparse ! omxmpeg4videodec ! nvvidconv ! video/x-raw,format=BGRx ! queue ! videoconvert ! queue ! video/x-raw, format=BGR ! appsink'.format(filepath), cv2.CAP_GSTREAMER)

if  not cap.isOpened():
	print("Failed to open capture")
	exit()

while True:
	ret, frame = cap.read()
	cv2.imshow('Test', frame)
	cv2.waitKey(1)
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