webrtc中的rtp扩展 rtp-hdrext

在代码中，可以直接搜索： struct RTPHeaderExtension ；

      

https://webrtc.org/experiments/rtp-hdrext/#

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rtp-hdrext

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Underneath this page, RTP header extensions are listed.

• abs-send-time
• video-content-type
• video-timing

                                                                      

rfc5285

https://tools.ietf.org/html/rfc5285

A General Mechanism for RTP Header Extensions

  
Web Real-Time Communication (WebRTC): Media Transport and Use of RTP
                     
draft-ietf-rtcweb-rtp-usage-26

https://tools.ietf.org/html/draft-ietf-rtcweb-rtp-usage-26

可以参考这篇文章：

超越RFC3550 － RTP/RTCP协议族分析

http://www.jianshu.com/p/e5e21aeb219f?hmsr=toutiao.io