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我在按照WebRTC documents的chrome浏览器上启动Express + node.js web服务器时部署了此Agora.io Webrtc示例。什么是“无法正确解析视频编解码器”。意思？
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，并试图重新安装某些谷歌浏览器版本中包含的V54，V56，V57，V59和最新的一个。但是，每一个Chrome版本具有相同的错误
adapter.js:340 Uncaught (in promise) DOMException: Failed to parse SessionDescription. Failed to parse video codecs correctly.
是什么意思呢？