How to use

mozGetUserMedia

function

in

Navigator

function getUserMedia(...args) {
 if (!hasGetUserMedia()) {
  return;
 return navigator.getUserMedia && navigator.getUserMedia(...args)||
     navigator.webkitGetUserMedia && navigator.webkitGetUserMedia(...args)||
     navigator.mozGetUserMedia && navigator.mozGetUserMedia(...args) ||
     navigator.msGetUserMedia && navigator.msGetUserMedia(...args)

function hasGetUserMedia() {
  return !!(navigator.getUserMedia || navigator.webkitGetUserMedia ||
    navigator.mozGetUserMedia || navigator.msGetUserMedia);

getMedia(callbacks) {
  navigator.getUserMedia =
   navigator.getUserMedia ||
   navigator.mozGetUserMedia || 
   navigator.mediaDevices.getUserMedia ||
   navigator.webkitGetUserMedia;
  const constraints = { audio: true, video: true};
  navigator.getUserMedia(constraints, callbacks.success, callbacks.error);

/**
 * Captures microphone input from the browser.
 * Works at least on latest versions of Firefox and Chrome
function Microphone(_options) {
 var options = _options || {};
 // we record in mono because the speech recognition service
 // does not support stereo.
 this.bufferSize = options.bufferSize || 8192;
 this.inputChannels = options.inputChannels || 1;
 this.outputChannels = options.outputChannels || 1;
 this.recording = false;
 this.requestedAccess = false;
 this.sampleRate = 16000;
 // auxiliar buffer to keep unused samples (used when doing downsampling)
 this.bufferUnusedSamples = new Float32Array(0);
 this.samplesAll = new Float32Array(20000000);
 this.samplesAllOffset = 0;
 // Chrome or Firefox or IE User media
 if (!navigator.getUserMedia) {
  navigator.getUserMedia = navigator.webkitGetUserMedia ||
  navigator.mozGetUserMedia || navigator.msGetUserMedia;

/**
   * Incorporate different versions of getUserMedia
   * @method
  initUserMedia() {
    if (navigator.mediaDevices === undefined) {
      navigator.mediaDevices = {};
    if (navigator.mediaDevices.getUserMedia === undefined) {
      navigator.mediaDevices.getUserMedia = function (constraints) {
        let getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia;
        if (!getUserMedia) {
          return Promise.reject(new Error('浏览器不支持 getUserMedia !'));
        return new Promise(function (resolve, reject) {
          getUserMedia.call(navigator, constraints, resolve, reject);

 navigator.mozGetUserMedia ||
 navigator.msGetUserMedia;
this.navigator = navigator;

requestMic() {
  return new Promise((resolve, reject) => {
   this._log('Requesting microphone.');
   // Ensure that the file can be loaded in environments where navigator is not defined (node servers)
   if (!navigator.getUserMedia) {
    navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia ||
     navigator.mozGetUserMedia || navigator.msGetUserMedia;
   navigator.getUserMedia({
    audio: true
   }, (stream) => {
    this._log('Microphone connected.');
    return this.connectMediaStream(stream).then(resolve);
   }, (error) => {
    this._log('error', error);
    this.emit(AVS.EventTypes.ERROR, error);
    return reject(error);

navigator.mozGetUserMedia ||
navigator.msGetUserMedia;

constructor() {
  super();
  navigator.getUserMedia = ( navigator.getUserMedia ||
              navigator.webkitGetUserMedia ||
              navigator.mozGetUserMedia ||
              navigator.msGetUserMedia);
  const audioCtx = new (window.AudioContext || webkitAudioContext)();
  const analyser = audioCtx.createAnalyser();
  this.state = {
   audioCtx: audioCtx,
   analyser: analyser,
   chunks: []
  this.draw = this.draw.bind(this);
  this.visualize = this.visualize.bind(this);
  this.recordOnClick = this.recordOnClick.bind(this);
  this.stopOnClick = this.stopOnClick.bind(this);
  this.mediaRecorderOnStop = this.mediaRecorderOnStop.bind(this);
  this.mediaRecorderOnDataAvailable = this.mediaRecorderOnDataAvailable.bind(this);

navigator.mozGetUserMedia ||
navigator.msGetUserMedia;

navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia || navigator.oGetUserMedia;

startRecording() {
    navigator.getUserMedia = navigator.getUserMedia ||
      navigator.webkitGetUserMedia ||
      navigator.mozGetUserMedia ||
      navigator.msGetUserMedia;
    if(typeof navigator.getUserMedia !== 'function') {

getMedia(callbacks) {
  navigator.getUserMedia =
   navigator.getUserMedia ||
   navigator.mozGetUserMedia || 
   navigator.mediaDevices.getUserMedia ||
   navigator.webkitGetUserMedia;
  const constraints = { audio: true, video: true};
  navigator.getUserMedia(constraints, callbacks.success, callbacks.error);

function hasGetUserMedia() {
 return !!(navigator.getUserMedia || navigator.webkitGetUserMedia ||