def start_live(self,
exp_time=None,
buffer_frame_count=16,
stream_to_disk_path=None):
"""Calls the pvc.start_live function to setup a circular buffer acquisition.
Parameter:
exp_time (int): The exposure time (optional).
Returns:
None
"""
self._set_dtype()
if not isinstance(exp_time, int):
exp_time = self.exp_time
if isinstance(stream_to_disk_path, str):
stream_to_disk_path_abs = os.path.abspath(stream_to_disk_path)
directory, filename = os.path.split(stream_to_disk_path_abs)
if os.path.exists(directory):
try:
os.remove(filename)
except OSError:
pass
else:
raise ValueError('Invalid directory for stream to disk: ' +
directory)
self.__acquisition_mode = 'Live'
self.__exposure_bytes = pvc.start_live(self.__handle, self.__rois,
exp_time, self.__mode,
buffer_frame_count,
stream_to_disk_path)
def start_live(self, exp_time=None):
"""Calls the pvc.start_live function to setup a circular buffer acquisition.
Parameter:
exp_time (int): The exposure time (optional).
Returns:
None
"""
x_start, x_end, y_start, y_end = self.__roi
if not isinstance(exp_time, int):
exp_time = self.exp_time
self.__exposure_bytes = pvc.start_live(self.__handle, x_start, x_end - 1,
self.bin_x, y_start, y_end - 1,
self.bin_x, exp_time, self.__mode)