这个也属于玩玩闹闹系列0.0 啥也不懂纯属瞎玩儿~ 步骤大概如下：
- 安装Nginx (服务器)
- 安装FFmpeg (推流用，把视频推给服务器)
- 安装VLC客户端 (拉流用，从服务器拿数据)
1. 安装nginx
// 拉取nginx
brew tap denji/nginx
// 安装带有rtmp模块的nginx
brew install nginx-full --with-rtmp-module
安装过程中，homebrew或帮我们自动的安装如pcre、openssl等模块。因此相对于其他平台的安装方式或者源码安装方式，homebrew非常方便。
然后我们可以通过下面的命令看nginx的信息：
brew info nginx-full
我们可以看到nginx安装目录之类的信息：
$ brew info nginx-full
denji/nginx/nginx-full: stable 1.17.8, HEAD
HTTP(S) server, reverse proxy, IMAP/POP3 proxy server
https://nginx.org/
Conflicts with:
nginx (because nginx-full symlink with the name for compatibility with nginx)
/usr/local/Cellar/nginx-full/1.17.8 (8 files, 1.3MB) *
Built from source on 2020-02-09 at 08:19:10 with: --with-rtmp-module
From: https://github.com/denji/homebrew-nginx/blob/master/Formula/nginx-full.rb
==> Dependencies
Required: pcre ✔, openssl@1.1 ✔
Optional: gd ✘, geoip ✘, gperftools ✘, passenger ✘, imlib2 ✘
==> Options
……
--HEAD
Install HEAD version
==> Caveats
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/opt/nginx-full/bin/nginx
$ sudo chmod u+s /usr/local/opt/nginx-full/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 denji/nginx/nginx-full now and restart at login:
brew services start denji/nginx/nginx-full
Or, if you don't want/need a background service you can just run:
nginx
config文件在/usr/local/etc/nginx/nginx.conf，web容器路径为/usr/local/var/www。
然后我们就需要配置rtmp啦~ 在nginx.conf配置文件里面和http同级加一段rtmp：
#user nobody;
worker_processes 1;
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
#pid logs/nginx.pid;
events {
worker_connections 1024;
}
http {
……
}
// 添加
rtmp {
server {
listen 1935;
chunk_size 4000;
application rtmplive {
live on;
max_connections 1024;
}
application hls {
live on;
hls on;
hls_path /usr/local/var/www/hls;
hls_fragment 1s;
}
}
}
最后面hls_path就是待会要用到的推流文件目录了。一般来说不必创建，如果出现文件夹权限问题的话，手动添加下可读可写权限就可以了。
2. 安装ffmpeg
FFmpeg是一套可以用来记录、转换数字音频、视频，并能将其转化为流的开源计算机程序。
brew install ffmpeg
中间可能经常error不断重新install就好~ 成功以后可以通过ffmpeg命令来查看这个库的信息：
ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
built with Apple clang version 11.0.0 (clang-1100.0.33.16)
configuration: --prefix=/usr/local/Cellar/ffmpeg/4.2.2_1 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags='-I/Library/Java/JavaVirtualMachines/adoptopenjdk-13.0.1.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/adoptopenjdk-13.0.1.jdk/Contents/Home/include/darwin -fno-stack-check' --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-videotoolbox --disable-libjack --disable-indev=jack
libavutil 56. 31.100 / 56. 31.100
libavcodec 58. 54.100 / 58. 54.100
libavformat 58. 29.100 / 58. 29.100
libavdevice 58. 8.100 / 58. 8.100
libavfilter 7. 57.100 / 7. 57.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 5.100 / 5. 5.100
libswresample 3. 5.100 / 3. 5.100
libpostproc 55. 5.100 / 55. 5.100
Hyper fast Audio and Video encoder
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...
3. 下载VLC客户端（支持rtmp协议的视频播放器）
https://get.videolan.org/vlc/3.0.8/macosx/vlc-3.0.8.dmg
4. 联调
首先是关于server的一些命令，我们先reload一下server：
// 关闭nginx
nginx -s stop
// 打开：
nginx
// reload：
nginx -s reload
然后准备一个视频命名为test.mp4，通过ffmpeg把它推上去：（注意这里的rtmplive和nginx config里面的配置要一致如果你的服务名不是这个需要替换哦）
ffmpeg -re -i test.mp4 -vcodec libx264 -acodec aac -f flv rtmp://localhost:1935/rtmplive/rtmp
然后打开VLC，通过菜单中File-Open Network输入网址rtmp://localhost:1935/rtmplive/rtmp即可：
VLC client
效果就是酱紫的：
推拉流
用手机端推流，电脑拉流的效果是酱紫的：
客户端推流
好啦这就是今天的玩儿一下啦~~ 最近都没啥深度，真的是在家太痛苦了想出去逛街买衣服0.0 anyway希望所有人健健康康开开心心的吖！
参考：
https://www.jianshu.com/p/4f96e18827e2
https://www.jianshu.com/p/7fecc80ae51c
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