Web直播系列5——nginx-rtmp-module实现推流，播放计数统计

前提：

电脑的系统为64位Ubuntu16.04TLS及系列文章2中所实现的简易直播平台https://blog.csdn.net/zzhang_12/article/details

目的：

• ffmpeg推流rtmp://10.0.0.118:1935/live/test，数据库在地址test的推流number+1，停止推流，自动-1。
• 某直播地址（rtmp://10.0.0.118:1935/live/test）的rtmp流被播放，数据库播放number+1，停止播放，如关掉浏览器，自动-1。

Ubuntu下的搭建方法：

1）nginx服务器的配置

• 配置文件的添加

  rtmp {
      server {
          listen 1935;
          chunk_size 4000;
          application live {
  				live on;
  				on_play http://10.0.0.118/camera_monitor/on_play_servlet;
  				on_play_done http://10.0.0.118/camera_monitor/on_play_done_servlet;
  				on_publish http://10.0.0.118/camera_monitor/on_publish_servlet;
  				on_publish_done http://10.0.0.118/camera_monitor/on_publish_done_servlet;       
          }
      }
  }
  
  http {
      #include      /nginx/conf/naxsi_core.rules;
      include       mime.types;
      default_type  application/octet-stream;
  
       upstream 10.0.0.118{
           server 10.0.0.118:8080 weight=1;
           server 10.0.0.119:8080 weight=1;
           server 10.0.0.120:8080 weight=1;
       }
  
      sendfile        off;
      #tcp_nopush     on;
  
      server_names_hash_bucket_size 128;
  
      client_body_timeout   10;
      client_header_timeout 10;
      keepalive_timeout     30;
      send_timeout          10;
      keepalive_requests    10;
  
      server {
          listen       80;
          server_name  10.0.0.118;
  
       location / {
          root   html;
          index  index.html index.htm;
          proxy_pass http://10.0.0.118;   
          }
      
       location camera_monitor/on_play_servlet {
           return 202;
          }
  
       location camera_monitor/on_play_done_servlet {
           return 202;
          }
  
       location camera_monitor/on_publish_servlet {
           return 202; 
          }
  
       location camera_monitor/on_publish_done_servlet{ 
          return 202; 
          }   
      }
  }

• 参数解释

1. on_play —— 客户端播放
2. on_play_done —— 客户端播放结束
3. on_publish —— 推流开始
4. on_publish_done —— 推流结束
5. 参数说明见官方文档https://github.com/arut/nginx-rtmp-module/wiki/Directives#on_publish
    

2）servlet的内容及注意事项

• on_play_servlet的具体内容

  import java.io.IOException;
  import java.sql.SQLException;
  import javax.servlet.ServletException;
  import javax.servlet.annotation.WebServlet;
  import javax.servlet.http.HttpServlet;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  
  @WebServlet("/on_play_servlet")
  public class on_play_servlet extends HttpServlet
  {
  	/**
  	 * 
  	 */
  	private static final long serialVersionUID = 1L;
  
  	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException 
  	{
  		// TODO Auto-generated method stub
  		doPost(request, response);
  	}
  
  	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
  	{
  		String vehicleid_direction = request.getParameter("name");#依据上面的配置，此处获得的vehicleid_direction 为test
  	}
  }

• 其他参数使用与on_play_servlet相似
• 注意：在使用on_play参数时,如果已成功推流但视频由于延时及播放器等原因未显示时，数据库的播放记录可能仍会+1.

参考：

http://www.ptbird.cn/rtmp-nginx-module-status-and-people.html