apprtc - getusermedia() 失败

Question

我从这里下载了apprtc。然后我安装了Python 2.7、Google App Engine API以及所有需要的依赖项。我把它们都添加到了我的路径中，然后运行了以下命令：

dev_appserver.py apprtc

这条命令的输出是：

INFO     2014-04-24 21:31:34,246 sdk_update_checker.py:242] Checking for updates
to the SDK.
INFO     2014-04-24 21:31:35,681 sdk_update_checker.py:286] This SDK release is
newer than the advertised release.
INFO     2014-04-24 21:31:35,917 api_server.py:171] Starting API server at: http
://localhost:46857
INFO     2014-04-24 21:31:35,924 dispatcher.py:182] Starting module "default" ru
nning at: http://localhost:8080
INFO     2014-04-24 21:31:35,927 admin_server.py:117] Starting admin server at:
http://localhost:8000

但是如果我现在在Chrome或Firefox中打开localhost:8080，就会弹出以下消息：

getusermedia() failed. is this a webrtc capable browser

Gathered ICE Candidates
Local:
Remote:
getUserMedia failed with exception: getUserMedia is not defined

不过如果我打开官方的apprtc演示，它运行得很好。

我在本地遇到的失败可能是什么原因呢？谢谢！

Answer 1

试试这个来获取用户媒体

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