def bitshuffle_decode(data, itemsize=1, blocksize=0, out=None):
"""Bitunshuffle."""
if isinstance(data, numpy.ndarray):
return bitshuffle.bitunshuffle(data, blocksize)
data = numpy.frombuffer(data, dtype=f'uint{itemsize * 8}')
data = bitshuffle.bitunshuffle(data, blocksize)
return data.tobytes()
def buff_unshuffle(buff):
buff = numpy.frombuffer(buff)
buff = bitshuffle.bitunshuffle(buff).tostring()
return buff