How to set values dynamically or during runtime??

[Dipankar1997161]

I have passed a json file with predefined values of the control settings which works fine. but now few of the settings I wish to run dynamicaly or change under cli or other arguments. Is that actually possible?

Is there a way to activate the flags since it returned 'inactive' ERROR:

   Control value: IntegerControl  focus_absolute min=0 max=1023 step=1 default=0 value=160 flags=inactive focus_absolute
Traceback (most recent call last):
  File "/home/dipankar/Desktop/Camera_test/camera_operator_new.py", line 142, in <module>
    co.saveImg(imgindex=0)
  File "/home/dipankar/Desktop/Camera_test/camera_operator_new.py", line 117, in saveImg
    self.SetCamParams(cam)
  File "/home/dipankar/Desktop/Camera_test/camera_operator_new.py", line 37, in SetCamParams
    cam.controls[cval].value = controlvals[cval]
  File "/home/dipankar/miniconda3/envs/camera_test/lib/python3.10/site-packages/linuxpy/video/device.py", line 998, in value
    self._set_control(v)
  File "/home/dipankar/miniconda3/envs/camera_test/lib/python3.10/site-packages/linuxpy/video/device.py", line 899, in _set_control
    raise AttributeError(f"{self.__class__.__name__} {self.config_name} is not writeable: {', '.join(reasons)}")
AttributeError: IntegerControl focus_absolute is not writeable: inactive

CODE:

if __name__ == "__main__":

parser = argparse.ArgumentParser(description="Camera Control Script")
parser.add_argument("--exposure", type=int, help="Set exposure time in microseconds")
parser.add_argument("--focus", type=int, help="Set focus absolute value")
args = parser.parse_args()

co = CamControl()
print("End of Initialization")

for cam in co.cams:
    if args.exposure is not None:
        co.setExposureTime(cam, args.exposure)
    if args.focus is not None:
        co.setFocusAbsolute(cam, args.focus)

def setExposureTime(self, cam, exposure_time):
  cam.controls['exposure_time_absolute'].value = exposure_time
  print(f"Setting exposure_time_absolute to {exposure_time}")

def setFocusAbsolute(self, cam, focus_absolute):
    cam.controls['focus_absolute'].value = focus_absolute
    print(f"Setting focus_absolute to {focus_absolute}")

Thank you in advance

[tiagocoutinho]

I think this is a bug. I thought I fixed it before. It should be possible to set the value of an inactive control. I'll make a PR to fix

[tiagocoutinho]

It should be fixed in master Also on the new 0.12.0 available on pypi

[Dipankar1997161]

We are able to set values to the variables where the flags are inactive. For that, one has to first change the mode to Manual Mode before setting the values