The HTML DOM Video defaultPlaybackRate property returns/sets a number corresponding to default playback rate of media.
Syntax
Following is the syntax −
Returning defaultPlaybackRate as a number
mediaObject.defaultPlaybackRate
Setting defaultPlaybackRate to a number
mediaObject.defaultPlaybackRate = number
NOTE − Number has a max value of ‘16’ and if ‘0.0’ an error occurs.
Let us see an example of Video defaultPlaybackRate property −
Example
<!DOCTYPE html>
<html>
<head>
<title>HTML DOM Video defaultPlaybackRate</title>
<style>
* {
padding: 2px;
margin:5px;
}
form {
width:70%;
margin: 0 auto;
text-align: center;
}
input[type="button"] {
border-radius: 10px;
}
</style>
</head>
<body>
<form>
<fieldset>
<legend>HTML-DOM-Video-defaultPlaybackRate</legend>
<video id="demo" width="320" controls><source src="https://www.tutorialspoint.com/html5/foo.mp4" type="video/mp4"></video><br>
<input type="button" onclick="getTrackDetails(1)" value="Slow (<<)">
<input type="button" onclick="getTrackDetails(2)" value="Fast (>>)">
<div id="divDisplay"></div>
</fieldset>
</form>
<script>
var divDisplay = document.getElementById("divDisplay");
var demo = document.getElementById("demo");
function getTrackDetails(val) {
if(val === 1){
demo.defaultPlaybackRate -= 0.5;
demo.load();
divDisplay.textContent = 'Default Playback Set: '+demo.defaultPlaybackRate;
}
else{
demo.defaultPlaybackRate += 0.5;
demo.load();
divDisplay.textContent = 'Default Playback Set: '+demo.defaultPlaybackRate;
}
}
</script>
</body>
</html>Output
Clicking ‘Fast (>>)’ button 2 times −
Clicking ‘Slow (<<)’ button −
