Quitting when running in console without vis window

vital

How do I make it so that I can quit out of a running script in the console when there is no visualization window open without using CTRL-C? If the vis window is up I just hit Q, but if it is outputting to stdout it just keeps looping forever until I manually break it.

from depthai_sdk import OakCamera
import time

def cb(packet):
    print('looping is fun')
    time.sleep(1)

with OakCamera() as oak:
    color = oak.create_camera('color')
    nn = oak.create_nn('yolov6nr3_coco_640x352', color)

    oak.callback(nn, callback=cb)
    oak.start(blocking=True)

Thanks

jakaskerl

Hi vital
You can exit the program with a key when cv2 window is open, because the oak is constantly running the cv2.waitkey() function which expects a "Q" key press.
You should be able to do the same without cv2 by putting a similar function into a callback of the camera. Just something to check whether a key has been detected.

Thanks,
Jaka

jremington

vital If the vis window is up I just hit Q, but if it is outputting to stdout it just keeps looping forever

I hover the mouse cursor over the CV display window and hit 'q' to stop the python program.

vital

jakaskerl

Doesn't work. What am I doing wrong?

from depthai_sdk import OakCamera
import time

def cb(packet):
    print('looping is fun')
    time.sleep(1)

with OakCamera() as oak:
    color = oak.create_camera('color')
    nn = oak.create_nn('yolov6nr3_coco_640x352', color)

    oak.callback(nn, callback=cb)
    oak.start()

    while oak.running:
        key = oak.poll()
        if key == ord('q'):
            break

jakaskerl

Hi vital
Opencv won't be able to detect a key press unless a window is open. I meant running some other keylogger function inside the cb function instead of opencvs waitkey().

Thanks,
Jaka

vital

jakaskerl

Thanks. I am still working my way through Python. Onward and upward.

jakaskerl

vital I am still working my way through Python

We all are 🙂