moviepy.video.fx.all.accel_decel¶

moviepy.video.fx.all.accel_decel(clip, new_duration=None, abruptness=1.0, soonness=1.0)[source]¶

new_duration: If None, will be that of the current clip.
abruptness: negative abruptness (>-1): speed up down up zero abruptness : no effect positive abruptness: speed down up down
soonness: for positive abruptness, determines how soon the speedup occurs (0<soonness < inf)