MediaDevices

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Esta es una tecnología experimental
Comprueba la Tabla de compabilidad de navegadores cuidadosamente antes de usarla en producción.

The MediaDevices interface provides access to connected media input devices like cameras and microphones, as well as screensharing.

Properties

None.

Methods

MediaDevices.getUserMedia(): With the user's permission through a prompt, turns on a camera or screensharing and/or a microphone on the system and provides a MediaStream containing a video track and/or an audio track with the input.
MediaDevices.enumerateDevices(): Obtains an array of information about the media input and output devices available on the system.

Example

'use strict';

// Put variables in global scope to make them available to the browser console.
var video = document.querySelector('video');
var constraints = window.constraints = {
  audio: false,
  video: true
};
var errorElement = document.querySelector('#errorMsg');

navigator.mediaDevices.getUserMedia(constraints)
.then(function(stream) {
  var videoTracks = stream.getVideoTracks();
  console.log('Got stream with constraints:', constraints);
  console.log('Using video device: ' + videoTracks[0].label);
  stream.onended = function() {
    console.log('Stream ended');
  };
  window.stream = stream; // make variable available to browser console
  video.srcObject = stream;
})
.catch(function(error) {
  if (error.name === 'ConstraintNotSatisfiedError') {
    errorMsg('The resolution ' + constraints.video.width.exact + 'x' +
        constraints.video.width.exact + ' px is not supported by your device.');
  } else if (error.name === 'PermissionDeniedError') {
    errorMsg('Permissions have not been granted to use your camera and ' +
      'microphone, you need to allow the page access to your devices in ' +
      'order for the demo to work.');
  }
  errorMsg('getUserMedia error: ' + error.name, error);
});

function errorMsg(msg, error) {
  errorElement.innerHTML += '<p>' + msg + '</p>';
  if (typeof error !== 'undefined') {
    console.error(error);
  }
}

Specifications

Specification	Status	Comment
Media Capture and Streams La definición de 'MediaDevices' en esta especificación.	Candidate Recommendation	Initial definition

Browser compatibility

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

Escritorio
Móvil

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari (WebKit)
Basic support	Sin soporte	36.0 (36.0)	Sin soporte	Sin soporte	Sin soporte
`enumerateDevices()`	45.0^[1]	?	Sin soporte	Sin soporte	Sin soporte

Feature	Android	Android Webview	Firefox Mobile (Gecko)	Firefox OS	IE Mobile	Opera Mobile	Safari Mobile	Chrome for Android
Basic support	Sin soporte	Sin soporte	36.0 (36.0)	2.2	Sin soporte	Sin soporte	Sin soporte	Sin soporte
`enumerateDevices()`	Sin soporte	Sin soporte	?	?	Sin soporte	Sin soporte	Sin soporte	Sin soporte

[1] Behind a flag.