一个简单的音乐视频

原文链接：http://zulko.github.io/moviepy/examples/ukulele_concerto.html

视频地址：https://youtu.be/AqGZ4JFkQTU

这只是一个没有声音的示例（对于一个音乐视频来说是不完整的），我将用一个带有真实音乐的视频示例来取代它（99%的代码将一致）。MoviePy的哲学就是，我每做一个新视频，我就会复制粘贴这些代码，然后修改其中的几行。

from moviepy.editor import *

# UKULELE CLIP, OBTAINED BY CUTTING AND CROPPING
# RAW FOOTAGE

ukulele = VideoFileClip("../../videos/moi_ukulele.MOV", audio=False).\
               subclip(60+33, 60+50).\
               crop(486, 180, 1196, 570)

w,h = moviesize = ukulele.size

# THE PIANO FOOTAGE IS DOWNSIZED, HAS A WHITE MARGIN, IS
# IN THE BOTTOM RIGHT CORNER 

piano = (VideoFileClip("../../videos/douceamb.mp4",audio=False).
         subclip(30,50).
         resize((w/3,h/3)).    # one third of the total screen
         margin( 6,color=(255,255,255)).  #white margin
         margin( bottom=20, right=20, opacity=0). # transparent
         set_pos(('right','bottom')) )



# A CLIP WITH A TEXT AND A BLACK SEMI-OPAQUE BACKGROUND

txt = TextClip("V. Zulkoninov - Ukulele Sonata", font='Amiri-regular',
	               color='white',fontsize=24)

txt_col = txt.on_color(size=(ukulele.w + txt.w,txt.h-10),
                  color=(0,0,0), pos=(6,'center'), col_opacity=0.6)


# THE TEXT CLIP IS ANIMATED.
# I am *NOT* explaining the formula, understands who can/want.
txt_mov = txt_col.set_pos( lambda t: (max(w/30,int(w-0.5*w*t)),
                                  max(5*h/6,int(100*t))) )



# FINAL ASSEMBLY
final = CompositeVideoClip([ukulele,txt_mov,piano])