ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
如果安装后, 想要卸载
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"
2.安装nginx
先clone nginx项目到本地
brew tap homebrew/nginx
执行安装：
brew install nginx-full --with-rtmp-module
此时, nginx和rtmp模块就安装好了
输入命令:
nginx
在浏览器里打开http://localhost:8080

nginx安装所在位置  /usr/local/Cellar/nginx-full/1.10.1/bin/nginx
nginx配置文件所在位置  /usr/local/etc/nginx/nginx.conf
nginx服务器根目录所在位置  /usr/local/var/www

# 在http节点后面加上rtmp配置：

rtmp {  
    server {  
        listen 1935;  
  
        application myapp {  
            live on;  
  
            #record keyframes;  
            #record_path /tmp;  
            #record_max_size 128K;  
            #record_interval 30s;  
            #record_suffix .this.is.flv;  
  
            #on_publish http://localhost:8080/publish;  
            #on_play http://localhost:8080/play;  
            #on_record_done http://localhost:8080/record_done;  
  
       }  
       application hls {  
             live on;  
             hls on;  
             hls_path /tmp/app;  
             hls_fragment 5s;  
  
  
       }  
    }  
}