Open In App

How to change video playing speed using JavaScript ?

Improve
Improve
Like Article
Like
Save
Share
Report

In this article, we will see how we can change the playback speed of videos embedded in an HTML document using an HTML5 video tag.

We can set the new playing speed using playbackRate attribute. It has the following syntax.

Syntax:

let video = document.querySelector('video')
video.playbackRate = newPlaybackRate

We can also set the default playing speed using defaultPlaybackRate attribute. It has the following syntax.

Syntax:

 let video = document.querySelector('video')
 video.defaultPlaybackRate = 4
 video.load()

Example: This example shows changing of playback speed using Javascript.

HTML




<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" 
          content="width=device-width, initial-scale=1.0">
    <title>change video playing speed using JavaScript</title>
</head>
  
<body>
    <h1>GeeksforGeeks</h1>
  
    <video width="890" height="500" controls loop>
        <source src="sample.mp4" type="video/mp4">
        Your browser does not support the video tag.
    </video>
  
    <p>
        <button onclick="increase()">Increase Speed</button>
        <button onclick="decrease()">Decrease Speed</button>
    </p>
</body>
</html>


CSS




<style>body {
    text-align: center;
    margin-top: 2%;
}
  
h1 {
    color: green;
}
  
p {
    margin-top: 2%;
}
  
button {
    margin-right: 20px;
}
  
</style>


Javascript




<script>
    let video = document.querySelector('video');
      
    // Set the default playing speed
    video.defaultPlaybackRate = 0.5
      
    // Loading the video after setting 
    video.load();
      
    function increase() {
      
        // Increasing the playing speed by 1
        video.playbackRate += 1;
    }
      
    function decrease() {
      
        // Decreasing the playing speed by 1
        if (video.playbackRate > 1)
            video.playbackRate -= 1;
    }
</script>


Output: Click here to check the live output



Last Updated : 10 Jan, 2023
Like Article
Save Article
Previous
Next
Share your thoughts in the comments
Similar Reads