Device doesn't close

msharad19

I'm trying to close a device using the method "close" in "depthai.Device", but it isn't closing the device. That means every time I end the execution, I have to unplug the camera and connect it again for it to be used. Can you please help?

PS - We cannot use the context manager due to some system design reasons.

msharad19

We just tried adding a delay of 1 second after using "close" and it still doesn't work

erik

Hi msharad19 , how about using contextlib? See implementation here.
Thanks, Erik

msharad19

That is unfortunately not possible as well. We cannot use "with" because we'll have to go out of scope and come back in at a certain frequency. That would mean we create the device again and again, which slows the system down

Is there a way we can make "close" work? That would be perfect

Thanks,
Sharad

erik

Hi msharad19 ,
I have tried with the code below and it works as expected, using depthai 2.17.4. Could you give it a try?

import cv2
import depthai as dai

# Create pipeline
pipeline = dai.Pipeline()

camRgb = pipeline.create(dai.node.ColorCamera)

xoutRgb = pipeline.create(dai.node.XLinkOut)
xoutRgb.setStreamName("rgb")
camRgb.preview.link(xoutRgb.input)

device = dai.Device(pipeline)

qRgb = device.getOutputQueue(name="rgb", maxSize=4, blocking=False)

while True:
    cv2.imshow("rgb", qRgb.get().getCvFrame())
    if cv2.waitKey(1) == ord('q'):
        break

device.close()

msharad19

yes it worked. Updating depthai version fixed it.

Thanks Erik