metaRTC+ZLMediaKit实现webrtc的推拉流
概述
ZLMediaKit是一个基于C++11的高性能运营级流媒体服务框架，是一个支持webrtc SFU的优秀的流媒体服务器系统。
metaRTC新版本支持whip/whep协议，支持whip/whep协议的ZLMediaKit推拉流。
信令通信
ZLMediaKit新版本支持whip和whep协议，支持两种API。
HTTP API
metaRTC封装了HTTP API，只需将参数mediaServer设置为zlm即可
avinfo.sys.mediaServer=Yang_Server_Zlm;
//zlm 默认端口为80
url="webrtc://192.168.3.85:80/live/test"- index/api/webrtc?app=live&stream=test&type=push
- index/api/webrtc?app=live&stream=test&type=play
Whip/Whep API
- http://192.168.3.85:80/index/api/whip?app=live&stream=test
- http://192.168.3.85:80/index/api/whep?app=live&stream=test
音频参数
ZLMediaKit配置文件config.ini音频编码参数默认排序为PCMU,PCMA,opus,mpeg4-generic
如需用opus可调整其顺序如：opus,PCMU,PCMA,mpeg4-generic
推流
streamconfig.direction=YangSendonly; conn->addAudioTrack(Yang_AED_OPUS);//Yang_AED_PCMU Yang_AED_PCMAconn->addVideoTrack(Yang_VED_H264);conn->addTransceiver(streamconfig.direction);
拉流
m_context->avinfo.audio.audioDecoderType=Yang_AED_PCMU;if(m_context->avinfo.audio.audioDecoderType==Yang_AED_PCMU||m_context->avinfo.audio.audioDecoderType==Yang_AED_PCMA){m_context->avinfo.audio.sample=8000;m_context->avinfo.audio.channel=1;}streamconfig.direction=YangRecvonly; conn->addAudioTrack(&conn->peer, (YangAudioCodec)m_context->avinfo.audio.audioDecoderType);conn->addVideoTrack(&conn->peer,Yang_VED_H264);conn->addTransceiver(&conn->peer,conn->peer.streamconfig.direction);
