Slow capture video from camera via OpenCV IMX 8 Mini EVK

[SYakubson]

Hello! I tried to catch video from nxp csi camera via opencv, but it works too slow. When i paste command to catch video in terminal it works fine.

Code to terminal:
gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw, framerate=30/1,width=1920,height=1080 ! videoconvert ! waylandsink

OpenCV code:

import cv2

import numpy as np

pipeline = 'v4l2src device=/dev/video0 ! video/x-raw, framerate=30/1,width=1920,height=1080 ! videoconvert ! appsink'

camera = cv2.VideoCapture(pipeline, cv2.CAP_ANY)

data = np.zeros((1920, 1080))

while True:

success, data = camera.read()

if(success == True

cv2.imshow("Image", data)

if cv2.waitKey(1) == 27:

break

print(success)

cv2.destroyAllWindows()

camera.release()

[Bio_TICFSL]

Hello SYakubson,

You are using /dev/video1 this is for USB or remove the data np.zeros.

Regards

[SYakubson]

@Bio_TICFSL in my code everywhere video0
I try to use it without numpy arrays, work similar