WebRTC：Support Cluster over QUIC.

[yzw607]

Two questions:

1. Does WebRTC not function on an Edge server?
2. Does WebRTC also not function on an Origin server?

How can WebRTC be supported in a cluster configuration?

[winlinvip]

The Edge is just designed for live streaming, that is RTMP, so the Edge only supports RTMP/HTTP-FLV. Neither WebRTC nor HLS is not supported by Edge, it's the features of Origin.

The cluster for HLS is regular HTTP file-based server, like Nginx or ATS. And cluster for WebRTC is called Cascading over QUIC, it's actually an OriginCluster connected with QUIC not RTMP.

Right now, most of WebRTC server does not support cluster, or does not work well, because WebRTC is too complex. We need time to design the arch carefully, especially we support both live streaming and WebRTC.

Note that TURN server is also could use as "Edge-like" for WebRTC origin server, but it does not support stream aggregation, which means it by-pass all connections and streams to SRS, so it won't help to extend the capability, it only works as a "by-pass proxy" over TCP or UDP. In one word, TURN is not a WebRTC cluster, it's a proxy near user to improve the network quality.

We may support WebRTC cluster, the OriginCluster over QUIC, in SRS 5.0 or later. It depends on our time resource, and whether we get a stable and simple enough arch.

The arch for WebRTC Cluster：

• No edge for WebRTC.
• Origin works for LiveStreaming and WebRTC, it holds the stream.
• The OriginCluster for LiveStreaming is based on RTMP302, while OriginCluster for WebRTC is based on QUIC.

[yzw607]

RTC中叫级联而不是RTMP这种树状结构的回源。

级联是要支持的，但目前其他的RTC服务器也没有支持。

可以替代的方案是用TURN配合SRS做级联。

明白了，感谢大神回复！

[winlinvip]

肖志宏大神正在看这个，预计会在SRS5支持。

[yzw607]

肖志宏大神正在看这个，预计会在SRS5支持。

期待！

[winlinvip]

Moved to #2091 (comment)

[wangjin]

RTC中叫级联而不是RTMP这种树状结构的回源。

级联是要支持的，但目前其他的RTC服务器也没有支持。

可以替代的方案是用TURN配合SRS做级联。

请教大神，TURN配合SRS做级联具体是怎么实现呢？能大致说说方向吗？