gstreamer critical error when trying to capture video using webcam python opencv
问题 i'm trying to take a video with webcam using opencv and python with a simple code import numpy as np import cv2 cap = cv2.VideoCapture(0) print('cap.isOpened') if cap.isOpened(): print ('cap is opened') while(True): re,img=cap.read() cv2.imshow("video output", img) k = cv2.waitKey(10)&0xFF if k==27: break cap.release() cv2.destroyAllWindows() it's working fine if i try to play an existing video such as .mp4 file. but when i try using a webcam i got an error GStreamer-CRITICAL **: gst_element