在linux下，使用python无法打开摄像头，第一次编译程序是没有任何反映，第二次就显示libv4l2: error setting pixformat: Device or resource busy
HIGHGUI ERROR: libv4l unable to ioctl S_FMT
libv4l2: error setting pixformat: Device or resource busy
libv4l1: error setting pixformat: Device or resource busy
libv4l2: error setting pixformat: Device or resource busy
libv4l1: error setting pixformat: Device or resource busy
HIGHGUI ERROR: libv4l unable to ioctl VIDIOCSPICT
这种错误，此后一直显示资源繁忙。但是使用opencv能够正常的打开摄像头。以下是python的程序import cv2
import numpy as np
cap = cv2.VideoCapture(0)
while(1):
# get a frame
ret, frame = cap.read()
# show a frame
cv2.imshow('capture', frame)
if cv2.waitKey(1) & 0xFF == ord('q'):
break
cap.release()
cv2.destroyAllWindows()
求大神帮忙解决，没有人有类似的问题吗
