WebRTC: Learn something from Mediasoup.

[winlinvip]

Ideas

Lianxiang:

• BWE and other congestion control algorithms.
• SVC, Simulcast.
• Multi-Track support, which may conflict with RTMP to some extent.
• Status callback, such as WebRTC's getStats interface.

Li Chao:

• Congestion control algorithms: BWE, flow control, bandwidth estimation, etc., can be moved from WebRTC.
• Protocol support, feedback protocols, etc.
• The author follows up on WebRTC very quickly and has a deep understanding, which is worth learning from.

B Shen, Zhihong:

• Congestion control can use this: razor

razor author is Yuan Rongxi, a technical expert with solid skills in both database and audio/video fields.

Li Xin:

• MediaSoup supports direct TCP streaming, without TURN, refer to WebRTC: WebRTC over TCP directly, not TURN, TCP transmission (non-TURN) #2852.

[winlinvip]

Simulcast branch: https://github.com/ossrs/srs-simulcast Maintainer is @johzzy

[winlinvip]

支持WebRTC客户端带宽的统计：4fe90d4

[jinleileiking]

simulcast的进展如何？ 分支已经没了 #2792

[johzzy]

simulcast的进展如何？ 分支已经没了 #2792

https://github.com/ossrs/srs-simulcast

[winlinvip]

新增了一个分支 feature/simulcast，链接到了独立仓库 srs-simulcast

由于SRS的WebRTC基础能力还很欠缺，比如统计信息还不全（需要支持Prometheus Exporter），拥塞算法还基本没有（需要从WebRTC移植），统计页面还没加进去（类似 chrome://webrtc-internals 但我们会用Grafana实现），需要等这些基础做完善后，再支持Simulcast这种高级功能可能会更合适些。