MediaStreamTrackEvent

The MediaStreamTrackEvent interface represents events which indicate that a MediaStream has had tracks added to or removed from the stream through calls to Media Stream API methods. These events are sent to the stream when these changes occur.

  <div id="interfaceDiagram" style="display: inline-block; position: relative; width: 100%; padding-bottom: 11.666666666666666%; vertical-align: middle; overflow: hidden;"><svg style="display: inline-block; position: absolute; top: 0; left: 0;" viewbox="-50 0 600 70" preserveAspectRatio="xMinYMin meet"><a xlink:href="/docs/Web/API/Event" target="_top"><rect x="1" y="1" width="75" height="50" fill="#fff" stroke="#D4DDE4" stroke-width="2px" /><text  x="38.5" y="30" font-size="12px" font-family="Consolas,Monaco,Andale Mono,monospace" fill="#4D4E53" text-anchor="middle" alignment-baseline="middle">Event</text></a><polyline points="76,25  86,20  86,30  76,25" stroke="#D4DDE4" fill="none"/><line x1="86" y1="25" x2="116" y2="25" stroke="#D4DDE4"/><a xlink:href="/docs/Web/API/MediaStreamTrackEvent" target="_top"><rect x="116" y="1" width="210" height="50" fill="#F4F7F8" stroke="#D4DDE4" stroke-width="2px" /><text  x="221" y="30" font-size="12px" font-family="Consolas,Monaco,Andale Mono,monospace" fill="#4D4E53" text-anchor="middle" alignment-baseline="middle">MediaStreamTrackEvent</text></a></svg></div>

  a:hover text { fill: #0095DD; pointer-events: all;}

The events based on this interface are addtrack and removetrack

Properties

Also inherits properties from its parent interface, Event.

track Read only: A MediaStreamTrack object representing the track which was added to the stream.

Constructor

MediaStreamTrackEvent(): Constructs a new MediaStreamTrackEvent with the specified configuration.

Methods

Also inherits methods from its parent Event.

Specifications

Specification	Status	Comment
Media Capture and Streams The definition of 'MediaStreamTrackEvent' in that specification.	Candidate Recommendation

Browser compatibility

	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
`MediaStreamTrackEvent`	Chrome Full support 55	Edge Full support ≤18	Firefox Full support 50	IE No support No	Opera Full support 42	Safari Full support Yes	WebView Android Full support 55	Chrome Android Full support 55	Firefox Android Full support 50	Opera Android Full support 42	Safari iOS Full support Yes	Samsung Internet Android Full support 6.0
`MediaStreamTrackEvent()` constructor	Chrome Full support 55	Edge Full support ≤79	Firefox Full support 50	IE No support No	Opera Full support 42	Safari ?	WebView Android Full support 55	Chrome Android Full support 55	Firefox Android Full support 50	Opera Android Full support 42	Safari iOS ?	Samsung Internet Android Full support 6.0
`track`	Chrome Full support Yes	Edge Full support 12	Firefox Full support Yes	IE No support No	Opera Full support Yes	Safari Full support Yes	WebView Android Full support Yes	Chrome Android Full support Yes	Firefox Android Full support Yes	Opera Android Full support Yes	Safari iOS Full support Yes	Samsung Internet Android Full support Yes

Legend

Full support: Full support
No support: No support
Compatibility unknown: Compatibility unknown