MediaRecorder.onstop

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The MediaRecorder.onstop event handler (part of the MediaRecorder API) handles the stop event, allowing you to run code in response to media recording via a MediaRecorder being stopped.

The stop event is thrown either as a result of the MediaRecorder.stop() method being invoked, or when the media stream being captured ends. In each case, the stop event is preceded by a dataavailable event, making the Blob captured up to that point available for you to use in your application.

Syntax

MediaRecorder.onstop = function(event) { ... }
MediaRecorder.addEventListener('stop', function(event) { ... })

Example

...

  mediaRecorder.onstop = function(e) {
    console.log("data available after MediaRecorder.stop() called.");

    var audio = document.createElement('audio');
    audio.controls = true;
    var blob = new Blob(chunks, { 'type' : 'audio/ogg; codecs=opus' });
    var audioURL = window.URL.createObjectURL(blob);
    audio.src = audioURL;
    console.log("recorder stopped");
  }

  mediaRecorder.ondataavailable = function(e) {
    chunks.push(e.data);
  }

...

Specifications

Specification Status Comment
MediaStream Recording
The definition of 'MediaRecorder.onstop' in that specification.
Working Draft Initial definition

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Basic supportChrome Full support 47
Notes Disabled
Full support 47
Notes Disabled
Notes Full support since Chrome 49.
Disabled From version 47: this feature is behind the Experimental Web Platform features preference (needs to be set to Enabled). To change preferences in Chrome, visit chrome://flags.
Edge ? Firefox Full support 25IE ? Opera Full support 36Safari ? WebView Android Full support 49Chrome Android Full support 49Edge Mobile ? Firefox Android Full support 25Opera Android Full support 36Safari iOS ? Samsung Internet Android ?

Legend

Full support  
Full support
Compatibility unknown  
Compatibility unknown
See implementation notes.
See implementation notes.
User must explicitly enable this feature.
User must explicitly enable this feature.

See also

Метки документа и участники

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