Hello how to check this? I read this article too Problems with OpenCV - #15 by notprime and made the installation with AastaNV · GitHub and now is GStremer=ON, but it still make error:
the code:
import cv2
import numpy as np
import os
dispW=1280 # 1280
dispH=960 # 960
flip=2
camSet=‘nvarguscamerasrc ! video/x-raw(memory:NVMM), width=3264, height=2464, format=NV12, framerate=21/1 ! nvvidconv flip-method=’+str(flip)+’ ! video/x-raw, width=‘+str(dispW)+’, height=‘+str(dispH)+’, format=BGRx ! videoconvert ! video/x-raw, format=BGR ! appsink’
#camSet=‘nvarguscamerasrc ! video/x-raw(memory:NVMM), width=1920, height=1080, format=NV12, framerate=29/1 ! nvvidconv flip-method=’+str(flip)+’ ! video/x-raw, width=‘+str(dispW)+’, height=‘+str(dispH)+’, format=BGRx ! videoconvert ! video/x-raw, format=BGR ! appsink’
cam=cv2.VideoCapture(camSet)
while True:
ret, frame=cam.read()
cv2.imshow(‘piCam’,frame)
if cv2.waitKey(1)==ord(‘q’):
break
cam.release()
cv2.destroyAllWindows()
the error:
(Argus) Error Timeout: (propagating from src/rpc/socket/client/SocketClientDispatch.cpp, function openSocketConnection(), line 219)
(Argus) Error Timeout: Cannot create camera provider (in src/rpc/socket/client/SocketClientDispatch.cpp, function createCameraProvider(), line 106)
Error generated. /dvs/git/dirty/git-master_linux/multimedia/nvgstreamer/gst-nvarguscamera/gstnvarguscamerasrc.cpp, execute:720 Failed to create CameraProvider
[ WARN:0] global /home/nanorobo/open_Aasta/JEP/script/workspace/opencv-4.5.0/modules/videoio/src/cap_gstreamer.cpp (935) open OpenCV | GStreamer warning: Cannot query video position: status=0, value=-1, duration=-1
Traceback (most recent call last):
File “/home/nanorobo/Desktop/Python_projects/pi_cam/pi_cam.py”, line 18, in
cv2.imshow(‘piCam’,frame)
cv2.error: OpenCV(4.5.0) /home/nanorobo/open_Aasta/JEP/script/workspace/opencv-4.5.0/modules/highgui/src/window.cpp:376: error: (-215:Assertion failed) size.width>0 && size.height>0 in function ‘imshow’