Nginx +Nginx-http-flv-module 推流&拉流

这两天为了利用云服务器实现 Nginx 进行OBS Rtmp推流，Flv拉流时发生了诸多情况，记录实现过程。

环境

• OS：阿里云CentOS 7.9 64位
• Nginx：nginx-1.28.0
• Nginx-http-flv-module：nginx-http-flv-module-1.2.12

  安装Nginx编译的依赖包：

  yum install -y gcc gcc-c++ autoconf automake make
  yum install zlib zlib-devel openssl openssl-devel pcre pcre-devel wget httpd-tools vim -y
  

  Nginx配置

  2.1 获取nginx源码

   wget http://nginx.org/download/nginx-1.28.0.tar.gz
  

  2.2 解压

  tar -xzvf nginx-1.28.0.tar.gz
  

  2.3 重命名

  mv nginx-1.28.0 nginx
  

  2.4 移动到/usr/local/

  mv nginx/ usr/local/
  

  Nginx-http-flv-module配置

  3.1 在/usr/local/nginx中下载

  wget https://github.com/winshining/nginx-http-flv-module/archive/refs/tags/v1.2.12.tar.gz
  

  3.2 解压

  tar -xzvf v1.2.12.tar.gz
  

  3.3 关闭防火墙

  systemctl disable --now firewalld
  setenforce 0
  getenforce
  

  3.4 配置nginx编译环境

  ./configure --prefix=/usr/local/nginx --add-module=/usr/local/nginx/nginx-http-flv-module-1.2.12
  

  3.5编译&安装

  make
  make install
  

  3.6设置Nginx环境变量

  vi /etc/profile # vi 打开环境变量文件
  export PATH=$PATH:/usr/local/nginx/sbin # 添加到文件最后一行
  source /etc/profile # 立即生效
  

  修改Nginx配置文件

  4.1 将下方文本替换/usr/local/nginx/conf/nginx.conf的内容：

  #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;
  }
  rtmp_auto_push on;
  rtmp_auto_push_reconnect 1s;
  rtmp_socket_dir /tmp;
   
  rtmp {
      out_queue           4096;
      out_cork            8;
      max_streams         128;
      timeout             15s;
      drop_idle_publisher 15s;
   
      log_interval 5s; #log模块在access.log中记录日志的间隔时间，对调试非常有用
      log_size     1m; #log模块用来记录日志的缓冲区大小
   
      server {
          listen 1935;
          #ffmpeg推流的application 
          application app {
              live on;
              allow publish all;
              allow play all;
              record off;
              meta copy;
              gop_cache on; #打开GOP缓存，减少首屏等待时间
          }
      }
  }
   
  http {
      include       mime.types;
      default_type  application/octet-stream;
      #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
      #                  '$status $body_bytes_sent "$http_referer" '
      #                  '"$http_user_agent" "$http_x_forwarded_for"';
      #access_log  logs/access.log  main;
      sendfile        on;
      #tcp_nopush     on;
      #keepalive_timeout  0;
      keepalive_timeout  65;
      #gzip  on;
      server {
          listen       80; # http-flv 拉流端口
          #server_name  localhost;
  	location /live {
              flv_live on; #打开HTTP播放FLV直播流功能
              chunked_transfer_encoding on; #支持'Transfer-Encoding: chunked'方式回复
   
              add_header 'Access-Control-Allow-Origin' '*'; #添加额外的HTTP头
              add_header 'Access-Control-Allow-Credentials' 'true'; #添加额外的HTTP头
          }
          #charset koi8-r;
          #access_log  logs/host.access.log  main;
          location / {
              root   html;
              index  index.html index.htm;
          }
          #error_page  404              /404.html;
          # redirect server error pages to the static page /50x.html
          #
          error_page   500 502 503 504  /50x.html;
          location = /50x.html {
              root   html;
          }
          # proxy the PHP scripts to Apache listening on 127.0.0.1:80
          #
          #location ~ \.php$ {
          #    proxy_pass   http://127.0.0.1;
          #}
          # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
          #
          #location ~ \.php$ {
          #    root           html;
          #    fastcgi_pass   127.0.0.1:9000;
          #    fastcgi_index  index.php;
          #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
          #    include        fastcgi_params;
          #}
          # deny access to .htaccess files, if Apache's document root
          # concurs with nginx's one
          #
          #location ~ /\.ht {
          #    deny  all;
          #}
      }
      # another virtual host using mix of IP-, name-, and port-based configuration
      #
      #server {
      #    listen       8000;
      #    listen       somename:8080;
      #    server_name  somename  alias  another.alias;
      #    location / {
      #        root   html;
      #        index  index.html index.htm;
      #    }
      #}
      # HTTPS server
      #
      #server {
      #    listen       443 ssl;
      #    server_name  localhost;
      #    ssl_certificate      cert.pem;
      #    ssl_certificate_key  cert.key;
      #    ssl_session_cache    shared:SSL:1m;
      #    ssl_session_timeout  5m;
      #    ssl_ciphers  HIGH:!aNULL:!MD5;
      #    ssl_prefer_server_ciphers  on;
      #    location / {
      #        root   html;
      #        index  index.html index.htm;
      #    }
      #}
  }
  

  4.2 新建/usr/local/nginx/logs文件夹存放日志

  sudo mkdir -p /usr/local/nginx/logs # sudo 是使用root权限创建
  

  4.3 测试配置文件是否问题

  /usr/local/nginx/sbin/nginx -t
  

  4.4 运行Nginx

  nginx
  

  4.5 查看端口，如果1935 & 80端口正在监听就表明完成了

  netstat -tulnp # 查看所有端口 加上 | grep x 可以过滤出端口x的情况
  

  

  5.OBS推流

  rtmp://${服务器公网地址}:1935/app/room-1

  使用obs进行推流，其中推流地址和推流码为：

  

  6.使用VLC进行拉流

  6.1 rtmp拉流地址为：rtmp://${服务器公网地址}:80/app/room-1

  6.2 flv 拉流地址为：http://${服务器公网地址}:80/live?port=1935&app=app&stream=room-1

  flv拉流地址，其中live的是配置文件中的http模块设置的、port的值应该是推流端口、app的值是配置文件中rtmp模块自定义的名称、stream的值是OBS推流自定义的推流码。

  效果：

  

  （ 延迟大概15s ）

  7. 参考

  • 使用Nginx搭建流媒体服务器
  • nginx+ffmpeg推流环境搭建
  • CentOS7安装 FFmpeg