Ejemplo n.º 1
0
    def queueFrameCapture(self, frameCallback = None):
        """
        Queue frames that may be filled during frame capturing.
        Runs VmbCaptureFrameQueue

        Call after announceFrame and startCapture

        Callback must accept argument of type frame. Remember to requeue the
        frame by calling frame.queueFrameCapture(frameCallback) at the end of
        your callback function.
        """
        # remember the given callback function
        self._frameCallback = frameCallback

        # define a callback wrapper here so it doesn't bind self
        def frameCallbackWrapper(p_frame):
            # call the user's callback with the self bound outside the wrapper
            # ignore the frame pointer since we already know the callback
            # refers to this frame
            self._frameCallback(self)

        if self._frameCallback is None:
            self._frameCallbackWrapper_C = None
        else:
            # keep a reference to prevent gc issues
            self._frameCallbackWrapper_C = \
                VimbaDLL.frameDoneCallback(frameCallbackWrapper)

        errorCode = VimbaDLL.captureFrameQueue(self._handle,
                                               byref(self._frame),
                                               self._frameCallbackWrapper_C)
        if errorCode != 0:
            raise VimbaException(errorCode)
Ejemplo n.º 2
0
    def queueFrameCapture(self, frameCallback=None):
        """
        Queue frames that may be filled during frame capturing.
        Runs VmbCaptureFrameQueue

        Call after announceFrame and startCapture

        Callback must accept argument of type frame. Remember to requeue the
        frame by calling frame.queueFrameCapture(frameCallback) at the end of
        your callback function.
        """
        # remember the given callback function
        self._frameCallback = frameCallback

        # define a callback wrapper here so it doesn't bind self
        def frameCallbackWrapper(cam_handle, p_frame):
            # call the user's callback with the self bound outside the wrapper
            # ignore the frame pointer since we already know the callback
            # refers to this frame
            self._frameCallback(self)

        if self._frameCallback is None:
            self._frameCallbackWrapper_C = None
        else:
            # keep a reference to prevent gc issues
            self._frameCallbackWrapper_C = VimbaDLL.frameDoneCallback(
                frameCallbackWrapper)

        errorCode = VimbaDLL.captureFrameQueue(self._handle,
                                               byref(self._frame),
                                               self._frameCallbackWrapper_C)
        if errorCode != 0:
            raise VimbaException(errorCode)
Ejemplo n.º 3
0
	def queueFrameCapture(self):
		"""
		Queue frames that may be filled during frame capturing.
		"""
		errorCode = VimbaDLL.captureFrameQueue(self._handle,
											   byref(self._frame),
											   None)	# callback not implemented, callback example in pico?
		if errorCode != 0:
			raise VimbaException(errorCode)
Ejemplo n.º 4
0
    def queueFrameCapture(self):
        """
		Queue frames that may be filled during frame capturing.
		"""
        errorCode = VimbaDLL.captureFrameQueue(
            self._handle, byref(self._frame),
            None)  # callback not implemented, callback example in pico?
        if errorCode != 0:
            raise VimbaException(errorCode)