Force open a camera after crash

[rk-exxec]

Hey, is there a way to force open a camera ( i.e. close all other connections)? I am working on a program, and it crashes a lot. It leaves the vimba object and the camera in the open state which causes issues when I try to start my program again.

I tried self.cam.run_feature_command('DeviceReset') but this requires an open connection. I tried closing the camera before opening it, doesn't work.

I'm using vimba 4.0

The crashes themselves seem to be caused by self.cam.disarm() during a continuous acquisition. My callback looks like this:

def frame_handler(self, frame: Frame, delay: Optional[int] = 1) -> None:
    try:
        img = frame.buffer_data_numpy()
    except:
        pass
    self.change_pixmap_signal.emit(img)

If I omit the last line, my program doesn't crash anymore. So if someone has an idea about that, please let me know.

[rk-exxec]

I started using the official library and figured out a way to "force close" a camera. This should also work here. You need to get the "AcquisitionStatus" feature value after selecting "AcquisitionActive" in the "AcquisitionStatusSelector" feature. Then if its true, run the "AcquisitionStop" command feature.

The crash is also gone, but I don't know exactly why.

[rk-exxec]

BTW here is how:

def _init_camera(self):
    with self._vimba:
        cams = self._vimba.get_all_cameras()
        self._cam = cams[0]
        with self._cam:
            self._cam.AcquisitionStatusSelector.set('AcquisitionActive')
            if self._cam.AcquisitionStatus.get():
                self._cam.AcquisitionStop.run()
                # fetch broken frame
                self._cam.get_frame()

could be ported to this library, I'm sure.