Web/API/HTMLMediaElement/loadedmetadata event

The loadedmetadata event is fired when the metadata has been loaded.

Bubbles	No
Cancelable	No
Interface	Event
Target	Element
Default Action	None
Event handler property	GlobalEventHandlers.onloadedmetadata
Specification	HTML5 media

Additional Properties

Property	Type	Description
mozChannels Read only	int	The number of channels.
mozSampleRate Read only	int	The sample rate per second.
mozFrameBufferLength Read only	int	The number of samples collected in all channels.

Examples

These examples add an event listener for the HTMLMediaElement's loadedmetadata event, then post a message when that event handler has reacted to the event firing.

Using addEventListener():

const video = document.querySelector('video');

video.addEventListener('loadedmetadata', (event) => {
  console.log('The duration and dimensions ' + '
      of the media and tracks are now known. ');
});

Using the onloadedmetadata event handler property:

const video = document.querySelector('video');

video.onloadedmetadata = (event) => {
  console.log('The duration and dimensions ' + '
      of the media and tracks are now known. ');
};

Specifications

Specification	Status
HTML Living StandardThe definition of 'loadedmetadata media event' in that specification.	Living Standard
HTML5The definition of 'canplay media event' in that specification.	Recommendation

Browser compatibility

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
loadedmetadata event	Chrome Full support 3	Edge Full support 12	Firefox Full support 3.5	IE Full support 9	Opera Full support 10.5	Safari Full support 3.1	WebView Android Full support Yes	Chrome Android Full support 18	Firefox Android Full support 4	Opera Android Full support Yes	Safari iOS Full support Yes	Samsung Internet Android Full support 1.0

Legend

Full support  

Full support

Related Events

• HTMLMediaElement: playing event
• HTMLMediaElement: waiting event
• HTMLMediaElement: seeking event
• HTMLMediaElement: seeked event
• HTMLMediaElement: ended event
• HTMLMediaElement: loadedmetadata event
• HTMLMediaElement: loadeddata event
• HTMLMediaElement: canplay event
• HTMLMediaElement: canplaythrough event
• HTMLMediaElement: durationchange event
• HTMLMediaElement: timeupdate event
• HTMLMediaElement: play event
• HTMLMediaElement: pause event
• HTMLMediaElement: ratechange event
• HTMLMediaElement: volumechange event
• HTMLMediaElement: suspend event
• HTMLMediaElement: emptied event
• HTMLMediaElement: stalled event

See Also

• HTMLAudioElement
• HTMLVideoElement
• <audio>
• <video>

• This event is part of gecko's [[../../../../Archive/Mozilla/Introducing_the_Audio_API_Extension|Audio API extension]]

HTMLMediaElement: loadedmetadata event by Mozilla Contributors is licensed under CC-BY-SA 2.5.