Welcome folks today in this blog post we will be using the moviepy library to increase or decrease the speed of mp4 video file in command line. All the full source code of the application is shown below.
Get Started
First of all we need to install the below moviepylibrary using the pip command as shown below
pip install moviepy
In order to get started you need to make an app.py file and copy paste the following code
app.py
Decreasing the Speed of Video
First of all we will see how to decrease the speed of video.
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# Import everything needed to edit video clips from moviepy.editor import * # loading video dsa gfg intro video clip = VideoFileClip("video.mp4") # getting only first 5 seconds clip = clip.subclip(0, 5) # applying speed effect final = clip.fx(vfx.speedx, 0.2) # showing final clip final.ipython_display() |
As you can see at the very top we are importing the moviepy library and then we are using the VideoFileClip class to load the input video and then we are using the subclip method to cut the video into 5 seconds and then we are applying the speed filter into these 5 seconds using the fx method and inside the argument we are passing the speed constant which is 0.2.This means lower the value simply means we are decreasing the speed of the video. And lastly we are saving the output video in the same directory.
Increasing the Speed of Video
For increasing the speed you need to follow the same steps that are illustrated above but you just need to increase the speed value that you pass to the fx method.
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# Import everything needed to edit video clips from moviepy.editor import * # loading video dsa gfg intro video clip = VideoFileClip("video.mp4") # getting only first 5 seconds clip = clip.subclip(0, 5) # applying speed effect final = clip.fx(vfx.speedx, 2.2) # showing final clip final.ipython_display() |
