In [29]:

    

from moviepy.editor import *
from moviepy.video.tools.cuts import find_video_period
from moviepy.audio.tools.cuts import find_audio_period
import os


    

In [30]:

    

INPUT_FOLDER = 'data/'
OUTPUT_FOLDER = 'output/'
names = ["knights.mp4", "frontier.mp4"]
fullNames = [INPUT_FOLDER + name for name in names]
if not (os.path.exists(fullNames[0]) and os.path.exists(fullNames[1])):
    os.system("youtube-dl zvCvOC2VwDc -o " + fullNames[0])
    os.system("youtube-dl lkY3Ek9VPtg -o" + fullNames[1])


    

In [31]:

    

audio = (AudioFileClip(fullNames[1])
         .subclip((4,7), (4,18))
         .audio_fadein(1)
         .audio_fadeout(1))

audio_period = find_audio_period(audio)
print ('Analyzed the audio, found a period of %.02f seconds'% audio_period )


    

    




Analyzed the audio, found a period of 0.48 seconds

In [32]:

    

clip = (VideoFileClip(fullNames[0], audio=False)
        .subclip((1,24.15),(1,26))
        .crop(x1=332, x2=910, y2=686))

video_period = find_video_period(clip, tmin=.3)
print ('Analyzed the video, found a period of %.02f seconds'% video_period)


    

    




Analyzed the video, found a period of 1.23 seconds

In [33]:

    

edited_right = (clip.subclip(0, video_period)
                .speedx(final_duration = 2*audio_period)
                .fx(vfx.loop, duration = audio.duration)
                .subclip(.25))

edited_left = edited_right.fx(vfx.mirror_x)

dancing_knights = (clips_array([[edited_left, edited_right]])
                   .fadein(1).fadeout(1).set_audio(audio).subclip(.3))


    

In [42]:

    

ipython_display(dancing_knights, width = 300)


    

    










    
Out[42]:

In [34]:

    

txt_title = (TextClip("15th century dancing\n(hypothetical)", fontsize=70,
               font="Arial", color="white")
             .margin(top=25, opacity=0)
             .set_position(("center","top")))

title = (CompositeVideoClip([dancing_knights.to_ImageClip(), txt_title])
         .fadein(.5)
         .set_duration(1.5))


    

In [35]:

    

txt_credits = """
CREDITS
Video excerpt: Le combat en armure au XVe siècle
By J. Donzé, D. Jaquet, T. Schmuziger,
Université de Genève, Musée National de Moyen Age
Music: "Frontier", by DOCTOR VOX
Under licence Creative Commons
https://www.youtube.com/user/DOCTORVOXofficial
Video editing © Zulko 2014
 Licence Creative Commons (CC BY 4.0)
Edited with MoviePy: http://zulko.github.io/moviepy/
"""

credits = (TextClip(txt_credits, color='white',
            font="Century-Schoolbook-Roman", fontsize=35, kerning=-2,
            interline=-1, bg_color='black', size=title.size)
          .set_duration(2.5)
          .fadein(.5)
          .fadeout(.5))


    

In [43]:

    

final = concatenate_videoclips([title, dancing_knights, credits])

final.write_videofile("dancing_knights.mp4", fps=clip.fps, codec='libx264', 
                  audio_codec='aac', temp_audiofile='temp-audio.m4a', 
                  remove_temp=True, audio_bitrate="1000k", bitrate="4000k")


    

    




[MoviePy] >>>> Building video dancing_knights.mp4
[MoviePy] Writing audio in temp-audio.m4a






    




                                                  





    




[MoviePy] Done.
[MoviePy] Writing video dancing_knights.mp4






    




                                                 





    




[MoviePy] Done.
[MoviePy] >>>> Video ready: dancing_knights.mp4 







    

In [44]:

    

ipython_display("dancing_knights.mp4", width=300)


    

    
Out[44]:

In [38]:

    

ipython_display(audio)


    

    










    
Out[38]: