macOS 搭建 RTMP 直播服务器

直播开发流程: 数据采集→ 数据编码 → 数据传输(流媒体服务器) → 解码数据 → 播放显示
本文主要介绍如何搭建RTMP直播服务器以及测试流媒体服务器是否搭建成功。

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RTMP直播服务器搭建

1. 安装Homebrew

   $ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

1. Homebrew添加nginx套件

   $ brew tap homebrew/nginx

1. 安装 nginx 和 rtmp 模块

   $ brew install nginx-full --with-rtmp-module

1. 查看 nginx 安装信息

   $ brew info nginx-full
   ...
   ...
   Docroot is: /usr/local/var/www

     The default port has been set in /usr/local/etc/nginx/nginx.conf to 8080 so that
     nginx can run without sudo.

     nginx will load all files in /usr/local/etc/nginx/servers/.

   - Tips -
   Run port 80:
    $ sudo chown root:wheel /usr/local/Cellar/nginx-full/1.10.1/bin/nginx
    $ sudo chmod u+s /usr/local/Cellar/nginx-full/1.10.1/bin/nginx
   Reload config:
    $ nginx -s reload
   Reopen Logfile:
    $ nginx -s reopen
   Stop process:
    $ nginx -s stop
   Waiting on exit process
    $ nginx -s quit

   To have launchd start homebrew/nginx/nginx-full now and restart at login:
     brew services start homebrew/nginx/nginx-full
   Or, if you don't want/need a background service you can just run:
     nginx

从以上信息可以得出

nginx 安装位置：/usr/local/Cellar/nginx-full/1.10.1

nginx 配置文件位置：/usr/local/etc/nginx/nginx.conf

nginx服务器根目录位置：`/usr/local/var/www`

1. 测试是否能成功启动nginx服务

   $ nginx

在浏览器地址栏输入：http://localhost:8080，出现 Welcome to nginx! 表示nginx安装成功了！

1. 修改nginx.conf配置文件，配置rtmp

在http节点后面添加rtmp配置

   http {
       ……
   }

   rtmp {
       server {
           listen 1935;

           application mytv {
               live on;
               record off;
           }
       }
   }

1. 重新加载nginx的配置文件

   $ nginx -s reload

现在我们可以来对推流进行测试了，看看我们的rtmp能不能推流成功。

测试服务器

推流

推流可以使用OBS软件和FFmpeg工具。

OBS

软件下载地址：https://obsproject.com

软件设置如图：

ffmpeg

安装ffmpeg

$ brew install ffmpeg

使用ffmpeg命令推流桌面

$ ffmpeg -f avfoundation -i "1:0" -vcodec libx264 -preset ultrafast -acodec aac -f flv rtmp://localhost:1935/mytv/room1

以上命令中"1:0"可以通过查看ffmpeg是否支持对应的设备

$ ffmpeg -f avfoundation -list_devices true -i ""
...
...
[AVFoundation input device @ 0x7fd3a9500b40] AVFoundation video devices:
[AVFoundation input device @ 0x7fd3a9500b40] [0] FaceTime HD Camera
[AVFoundation input device @ 0x7fd3a9500b40] [1] Capture screen 0
[AVFoundation input device @ 0x7fd3a9500b40] AVFoundation audio devices:
[AVFoundation input device @ 0x7fd3a9500b40] [0] Built-in Microphone

拉流

测试拉流可以使用VLC软件

软件下载地址：http://www.videolan.org/vlc/index.html

选择File -> Open Network...