Errors when exporting motion-corrected frames with large size (>4GB) using Sima

[yatangli]

dataset.export_frames(output_filenames)
Traceback (most recent call last):

File "", line 1, in
dataset.export_frames(output_filenames)

File "C:\Anaconda2\lib\site-packages\sima\imaging.py", line 613, in export_frames
sequence.export(fns, fmt, fill_gaps, self.channel_names)

File "C:\Anaconda2\lib\site-packages\sima\sequence.py", line 439, in export
f.write_page(channel.astype('uint16'))

File "C:\Anaconda2\lib\site-packages\sima\misc\tifffile.py", line 372, in write_page
self._write(self._offset_format, pos)

File "C:\Anaconda2\lib\site-packages\sima\misc\tifffile.py", line 363, in _write
self.fh.write(pack(arg, *args) if args else arg)

File "C:\Anaconda2\lib\site-packages\sima\misc\tifffile.py", line 362, in pack
return struct.pack(self._byteorder+fmt, *val)

error: integer out of range for 'I' format code