- m98
- 音视频的引擎是管理channel的
- 看起来是外部强加给CompositeMediaEngine 管理的。
CompositeMediaEngine ：合成媒体引擎
- G:\CDN\rtcCli\m98\src\media\base\media_engine.h
// CompositeMediaEngine constructs a MediaEngine from separate
// voice and video engine classes.
// Optionally owns a WebRtcKeyValueConfig trials map.
class CompositeMediaEngine : public MediaEngineInterface {
public: