“无法正确解析视频编解码器”是什么意思。意思是？答案

【问题标题】：What does "Failed to parse video codecs correctly." mean?“无法正确解析视频编解码器”是什么意思。意思是？
【发布时间】：2017-07-03 08:45:28
【问题描述】：

我按照WebRTC documents在chrome浏览器上启动Express + node.js webserver部署这个Agora.io Webrtc示例。

This appears to be Chrome
(index):78 Init AgoraRTC client with vendor key: ***
AgoraRTCSDK-1.8.0.js:842 INFO: Client in Live mode
(index):83 AgoraRTC client initialized
AgoraRTCSDK-1.8.0.js:842 INFO: VOSGateway connected.
(index):85 User 2502359564 join channel successfully
AgoraRTCSDK-1.8.0.js:842 DEBUG: Requested access to local media
AgoraRTCSDK-1.8.0.js:842 DEBUG: Object {video: Object, audio: true, fake: undefined}
adapter.js:32 chrome: {"video":{"mandatory":{"minWidth":1280,"minHeight":720,"maxWidth":1280,"maxHeight":720,"maxFrameRate":25,"minFrameRate":25},"optional":[]},"audio":true}
AgoraRTCSDK-1.8.0.js:842 INFO: User has granted access to local media.
(index):94 getUserMedia successfully
AgoraRTCSDK-1.8.0.js:842 DEBUG: Safari
AgoraRTCSDK-1.8.0.js:842 DEBUG: Set Video Bitrate - min:30 max:1500
adapter.js:340 Uncaught (in promise) DOMException: Failed to parse SessionDescription.  Failed to parse video codecs correctly.
(anonymous) @ adapter.js:340
(anonymous) @ adapter.js:332
webkitRTCPeerConnection.(anonymous function) @ adapter.js:331
(anonymous) @ AgoraRTCSDK-1.8.0.js:457
AgoraRTCSDK-1.8.0.js:842 INFO: video dimensions: 1280 720

我得到了失败的结果并尝试重新安装一些包含 v54、v56、v57、v59 和最新版本的 google chrome 版本。但是每个 chrome 版本都有相同的错误，

adapter.js:340 Uncaught (in promise) DOMException: Failed to parse SessionDescription. Failed to parse video codecs correctly.

什么意思？

【问题讨论】：

标签： node.js google-chrome express webrtc agora.io

【解决方案1】：

“无法正确解析视频编解码器”错误是由 setMaxBW 接口引起的已知 sdp 兼容性问题。不推荐使用 1.8.0 版本，因为它已过时。我建议升级到最新版本。

【讨论】：