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HTML | DOM Video defaultPlaybackRate Property

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The Video defaultPlaybackRate property is used for setting or returning the default playback speed of the video. The Video defaultPlaybackRate property only changes the default playback speed, not the current playback speed. 

Syntax:

  • Returning the defaultPlaybackRate property:
videoObject.defaultPlaybackRate
  • Setting the defaultPlaybackRate property:
videoObject.defaultPlaybackRate = number

Property Values:

  • 1.0 is normal speed.
  • 0.5 is half speed.
  • 2.0 is double speed.
  • -1.0 is backwards, normal speed.
  • -0.5 is backwards, half speed.

Below program illustrates the Video defaultPlaybackRate Property : 

Example: Setting the video to double speed by default. 

html




<!DOCTYPE html>
<html>
 
<head>
    <title>
        HTML | DOM Video defaultPlaybackRate Property
    </title>
    <style>
        h1 {
            color: green;
        }
         
        h2 {
            font-family: Impact;
        }
         
        body {
            text-align: center;
        }
    </style>
</head>
 
<body>
 
    <h1>GeeksforGeeks</h1>
    <h2>
      Video defaultPlaybackRate Property
    </h2>
    <br>
 
    <video id="Test_Video"
           width="360"
           height="240"
           controls>
        <source src="samplevideo.mp4"
                type="video/mp4">
       
        <source src="movie.ogg"
                type="video/ogg">
    </video>
 
    <p>
      For returning the playback rate of the
      video by default, double click the
      "Return Playback Rate" button.
    </p>
    <button ondblclick="My_VideoRate()"
            type="button">
      Return Playback Rate
    </button>
 
    <p>
      For changing the playback rate of the
      video by default, double click the
      "Change Playback Rate" button.
    </p>
    <button ondblclick="Set_VideoRate()"
            type="button">
      Change Playback Rate
    </button>
 
    <script>
        var v =
            document.getElementById(
              "Test_Video");
 
        function My_VideoRate() {
            alert(v.defaultPlaybackRate);
        }
 
        function Set_VideoRate() {
            v.defaultPlaybackRate = 2;
            v.load();
        }
    </script>
 
</body>
 
</html>


Output: Initial Playback Rate Updated Playback Rate Supported Browsers: The supported browser by HTML | DOM Video defaultPlaybackRate Property are listed below:

  • Google Chrome 1 and above
  • Edge 12 and above
  • Internet Explorer 9 and above
  • Firefox 20 and above
  • Opera 12.1 and above
  • Apple Safari 3.1 and above


Last Updated : 16 Aug, 2022
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