说明
Janus是一个开源的WebRTC服务，由Meetecho设计和开发。该服务目前只支持Linux系统，或者MacOS，不支持Windows系统，如果要在Windows下编译和使用，需要WSL。
编译依赖
基本依赖
libnice (at least v0.1.16 suggested, master recommended)
OpenSSL (at least v1.0.1e)
libsrtp (at least v1.5 suggested)
usrsctp (only needed if you are interested in Data Channels)
libmicrohttpd (at least v0.9.59; only needed if you are interested in REST support for the Janus API)
libwebsockets (only needed if you are interested in WebSockets support for the Janus API)
cmake (only needed if you are interested in WebSockets and/or BoringSSL support, as they make use of it)
rabbitmq-c (only needed if you are interested in RabbitMQ support for the Janus API or events)
paho.mqtt.c (only needed if you are interested in MQTT support for the Janus API or events)
nanomsg (only needed if you are interested in Nanomsg support for the Janus API)
libcurl (only needed if you are interested in the TURN REST API support)
一些插件的依赖
Sofia-SIP (only needed for the SIP plugin)
libopus (only needed for the bridge plugin)
libogg (needed for the voicemail plugin and/or post-processor)
libcurl (only needed if you are interested in RTSP support in the Streaming plugin or in the sample Event Handler plugin)
Lua (only needed for the Lua plugin)
此外，您还需要以下库和工具
GLib
zlib
pkg-config
gengetopt
安装依赖
CentOS
yum install libmicrohttpd-devel jansson-devel \
openssl-devel libsrtp-devel sofia-sip-devel glib2-devel \
opus-devel libogg-devel libcurl-devel pkgconfig gengetopt \
libconfig-devel libtool autoconf automake
Ubuntu
使用aptitude进行安装，会自动安装相关依赖
aptitude install libmicrohttpd-dev libjansson-dev \
libssl-dev libsrtp-dev libsofia-sip-ua-dev libglib2.0-dev \
libopus-dev libogg-dev libcurl4-openssl-dev liblua5.3-dev \
libconfig-dev pkg-config gengetopt libtool automake
其他安装依赖
Doxygen
Graphviz
编译过程
git clone https://github.com/meetecho/janus-gateway.git
cd janus-gateway
sh autogen.sh
./configure --prefix=/opt/janus
make
make install
make configs
执行完步骤后默认会在/opt/janus下生成整个工程的可执行文件及配置。
可执行文件janus在/opt/janus/bin下面。