MoviePy example

Moviepy.py

from moviepy.editor import *
import moviepy.video.fx.all as vfx

clip = VideoFileClip('fname.mp4')
mclip = clip.fx(vfx.mirror_x) # all frame in clip will be mirrored in x-axis

mclip.write_videofile('mirror_fname.mp4')

##################################################
clip = VideoFileClip('fname.mp4')
rclip = clip.resize(0.8).without_audio()
comp = CompositeVideoClip([clip, rclip.set_pos('center')])
comp.write_videofile('resize_fname.mp4')

###############
from pydub import AudioSegment
sound1 = AudioSegment.from_file("/path/to/my_sound.mp3")
sound2 = AudioSegment.from_file("/path/to/background_music.mp3")

sound2 = sound2 - 50  # reduce the volumn of background sound
combined = sound1.overlay(sound2)
combined.export("/path/to/combined.mp3", format='mp3')

###############
fl = lambda gf, t : gf(t) + np.random.uniform(0, 1) # filter: every frame is added a value randomly drawing from 0 and 1
newclip = clip.fl(fl, apply_to='mask')  # apply the filter to clip
newclip.write_videofile('new_f.mp4')

###############
# make clip backward
import moviepy.video.fx.all as vfx
backwardClip = clip.fx(vfx.time_mirror)
backwardClip.write_videofile('backwardClip.mp4')

#############
# 
clip = VideoFileClip('clip.mp4')
newClip = clip.fx(vfx.speedx, 0.7).fx(vfx.colorx, 0.8) # make clip slower 0.7 and darken the video