def __init__(self, sequence, frame_offset, nframe):
SpanBase.__init__(self, sequence.ring, sequence, writeable=False)
tensor = sequence.tensor
self.obj = _bf.BFrspan()
_check(
_bf.bfRingSpanAcquire(self.obj, sequence.obj,
frame_offset * tensor['frame_nbyte'],
nframe * tensor['frame_nbyte']))
self._set_base_obj(self.obj)
self.nframe_skipped = min(self.frame_offset - frame_offset, nframe)
self.requested_frame_offset = frame_offset
def __init__(self, sequence, offset, size):
SpanBase.__init__(self, sequence.ring, writeable=False)
self.obj = _bf.BFrspan()
_check(_bf.bfRingSpanAcquire(self.obj, sequence.obj, offset, size))