下载库：
pip install -i https://mirrors.aliyun.com/pypi/simple moviepy运行：
from moviepy.editor import *# intp_name = r'G:\DL\unet-keras\unet-keras-master\video_test\stone_ture.mp4'# outp_name= r'G:\DL\unet-keras\unet-keras-master\video_test\stone_ture15.mp4'intp_name = 'G:/DL/unet-keras/unet-keras-master//video_test//stone_ture.mp4'outp_name = 'G:/DL/unet-keras/unet-keras-master//video_test//stone_ture15.mp4'play_speed = 15.0 #速率au = VideoFileClip(intp_name)new_au = au.fl_time(lambda t: play_speed*t, apply_to=['mask', 'audio'])new_au = new_au.set_duration(au.duration/play_speed)new_au.write_videofile(outp_name)