events.py 文件源码

def speed_multiply(self, speed: Union[float, Fraction],
                       offset: Opt[int] = None):
        """
        Speeds up or slows down events by grouping them together or splitting them up.
        For slowdowns, event type group boundaries and isolated events are preserved.

        Parameters
        ----------
        speed
            Factor to speedup or slowdown by. 
            Must be of the form x (speedup) or 1/x (slowdown), where x is a natural number.
            Otherwise, 0 to remove all events.

        offset
            Offsets the grouping of events for slowdowns.
            Takes a max offset of x - 1 for a slowdown of 1/x, where x is a natural number
        """
        if speed == 0:
            self.clear()
        elif speed > 1:
            self._split(speed.numerator)
        elif speed < 1:
            self._merge(speed.denominator, offset)