Firefox：navigator.getUserMedia不是一个函数 [英] Firefox: navigator.getUserMedia is not a function

问题描述

我正在这样做

  var session = {
 audio：true，
 video：false 
}; 
 var recordRTC = null; 
 navigator.getUserMedia（session，initializeRecorder，onError）; 
  

但是，使用最新的FF我得到了一个javascript错误，说

navigator.getUserMedia不是函数

此博客文章： https ：//blog.groupbuddies.com/posts/39-tutorial-html-audio-capture-streaming-to-nodejs-no-browser-extensions

类似于最新的Chrome：

未捕获的TypeError：undefined不是函数

但是我知道这个API是来自两个浏览器的支持

我做错了什么？

解决方案

尚未支持前提。请参阅 http://caniuse.com/#search=getusermedia

您需要获取浏览器特定的前缀并使用它。正如在另一个答案中发布的那样：

  navigator.getUserMedia =（navigator.getUserMedia || 
 navigator.webkitGetUserMedia || 
 navigator.mozGetUserMedia || 
 navigator.msGetUserMedia）; 
  

这会将 navigator.getUserMedia 它会检测到正确的前缀版本。

I'm playing with browser and audio.

I'm doing this

        var session = {
          audio: true,
          video: false
        };
        var recordRTC = null;
        navigator.getUserMedia(session, initializeRecorder, onError);

But, using latest FF available I got a javascript error, saying that

navigator.getUserMedia is not a function

I copied this code from this blog post: https://blog.groupbuddies.com/posts/39-tutorial-html-audio-capture-streaming-to-nodejs-no-browser-extensions

And similar on latest Chrome:

Uncaught TypeError: undefined is not a function

But I know that this api is supported from both browser

What am I doing wrong?

解决方案

It's not supported unprefixed yet. See http://caniuse.com/#search=getusermedia

You'll need to get the browser-specific prefix and use that. As posted in another answer:

navigator.getUserMedia = ( navigator.getUserMedia ||
                       navigator.webkitGetUserMedia ||
                       navigator.mozGetUserMedia ||
                       navigator.msGetUserMedia);

This will set navigator.getUserMedia to whatever it detects to be the proper prefixed version.

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