MoviePy – 调整视频文件大小

在本文中，我们将了解如何在 MoviePy 中调整视频文件剪辑的大小。 MoviePy 是一个用于视频编辑的Python模块，可用于视频和 GIF 的基本操作。调整视频文件的大小意味着。当您将视频帧从一个像素网格调整到另一个像素网格或将其扭曲时，就会发生图像/帧插值。当我们需要增加或减少总像素数时，需要调整视频大小，而在校正镜头失真或旋转视频时可能会发生重新映射。

In order to do this we will use resize method with the VideoFileClip object

Syntax : clip.resize(n)

Argument : It takes float value i.e multiplier 

Return : It returns VideoFileClip object  

下面是实现

Python3

# Import everything needed to edit video clips
from moviepy.editor import *
 
# loading video dsa gfg intro video
# and getting only first 5 seconds
clip1 = VideoFileClip("dsa_geek.webm").subclip(0, 5)
 
# getting width and height of clip 1
w1 = clip1.w
h1 = clip1.h
 
print("Width x Height of clip 1 : ", end = " ")
print(str(w1) + " x ", str(h1))
 
print("---------------------------------------")
 
# resizing video downsize 50 %
clip2 = clip1.resize(0.5)
 
# getting width and height of clip 1
w2 = clip2.w
h2 = clip2.h
 
print("Width x Height of clip 2 : ", end = " ")
print(str(w2) + " x ", str(h2))
 
print("---------------------------------------")
 
# showing final clip
clip2.ipython_display(width = 480)

输出 ：

Width x Height of clip 1 :  854 x  480
---------------------------------------
Width x Height of clip 2 :  427 x  240
---------------------------------------
Moviepy - Building video __temp__.mp4.
Moviepy - Writing video __temp__.mp4


Moviepy - Done !
Moviepy - video ready __temp__.mp4 

另一个例子

Python3

# Import everything needed to edit video clips
from moviepy.editor import *
 
# loading video gfg
clip = VideoFileClip("geeks.mp4")
 
# getting subclip
clip1 = clip.subclip(0, 7)
 
# getting width and height of clip 1
w1 = clip1.w
h1 = clip1.h
 
print("Width x Height of clip 1 : ", end = " ")
print(str(w1) + " x ", str(h1))
 
print("---------------------------------------")
 
# resizing video downsize 50 %
clip2 = clip1.resize(0.5)
 
# getting width and height of clip 1
w2 = clip2.w
h2 = clip2.h
 
print("Width x Height of clip 2 : ", end = " ")
print(str(w2) + " x ", str(h2))
 
print("---------------------------------------")
 
# showing final clip
clip2.ipython_display()

输出 ：

Width x Height of clip 1 :  656 x  404
---------------------------------------
Width x Height of clip 2 :  328 x  202
---------------------------------------
Moviepy - Building video __temp__.mp4.
MoviePy - Writing audio in __temp__TEMP_MPY_wvf_snd.mp3

MoviePy - Done.
Moviepy - Writing video __temp__.mp4


Moviepy - Done !
Moviepy - video ready __temp__.mp4