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nginx-rtmp

nginx-rtmp 流媒体服务器的搭建(采集桌面,手机直播)

在线Demo,直播自己的pc机桌面音视频(现在就一单线路,1M带宽,2个人向同一个目录下推送m3u8、ts文件肯定不行,之后再改,资源有限)

1、下载ffmpeg及脚本
http://download.csdn.net/detail/pqy15005917185/8160799
2、安装screen-capture-recorder(采集windows桌面、摄像头)
下载地址:
http://download.csdn.net/detail/pqy15005917185/8160801
直接安装就ok了,安装之后才可以使用bat脚本的
“-f dshow -i video=screen-capture-recorder -f dshow -i audio=virtual-audio-capturer”

img

3、解压,点击"流服务器直播.bat",运行如下图

img

4、vlc访问地址“rtmp://182.92.69.21/hls/test” 或者直接用iphone来访问“http://182.92.69.21/hls/test.m3u8”

使用环境:

  • linux
  • nginx 安装nginx-rtmp-module模块
  • 客户端 ffmpeg 转换以及流化音视频
  • 采集桌面或摄像头 screen-capture-recorder-to-video-windows-free
https://github.com/arut/nginx-rtmp-module  nginx-rtmp流媒体模块
https://github.com/rdp/screen-capture-recorder-to-video-windows-free  采集桌面、摄像头

主要的使用场景:


1. 小米盒子提供视频源,通过设备(桌面或者摄像头)采集音视频,通过rtmp等协议,经过ffmpeg转换以及流化音视频到nginx-rtmp流媒体服务器。

2.拓扑图

img

展示(这里展示采集桌面视频)


1. pc机桌面

img

2. vlc播放直播桌面视频(rtmp://182.92.69.21/hls/test)

img

3. 手机播放m3u8流(182.92.69.21/hls/test.m3u8)

img img

环境部署及流媒体服务器搭建:


1.nignx及nginx-rtmp模块的安装

nginx-rtmp的下载,直接下源码解压就ok了,我放在这里/home/dev/pengqiuyuan/nginx-rtmp-module-master

https://github.com/arut/nginx-rtmp-module

img

在编译nginx的时候添加nginx-rtmp模块的路径

./configure --add-module=/home/dev/pengqiuyuan/nginx-rtmp-module-master --with-http_ssl_module
make
make install

2.nginx平滑安装nginx-rtmp

3.nginx.conf的修改(完整的流媒体配置)

(1).chunk_size:流整合的最大的块大小。默认值为 4096。这个值设置的越大 CPU 负载就越小。这个值不能低于 128。

(2).listen 1935:给NGINX添加一个监听端口以接收RTMP连接,iptables不需要开放1935端口。

(3).application hls:HLS协议支持。hls_path(m3u8文件生产路径)、hls_fragment、hls_playlist_length(5个分片,每片11s .注:这样设置实时直播延时在1分钟左右)

(4).http请求地址(http://182.92.69.21/hls/test.m3u8)

(5).vlc播放rtmp流(rtmp://182.92.69.21/hls/test)

(6).hls_path和location /hls{alias}的路径保持一样如:/home/dev/pengqiuyuan/streaming ,目录下面保存的是客户端推送到流服务器的m3u8、ts文件

# For more information on configuration, see:
#   * Official English Documentation: http://nginx.org/en/docs/
#   * Official Russian Documentation: http://nginx.org/ru/docs/

user              nginx;
worker_processes  1;

#error_log  /var/log/nginx/error.log;
#error_log  /var/log/nginx/error.log  notice;
#error_log  /var/log/nginx/error.log  info;

pid        /var/run/nginx.pid;


events {
    worker_connections  1024;
}

rtmp {
   server{
     listen 1935;
     chunk_size 4096;
     application hls { 
       live on;  
       hls on;  
       hls_path /home/dev/pengqiuyuan/streaming;  
       hls_fragment 11s;
       hls_playlist_length 55s;
       allow play all;
     }
   }
}

http {
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    keepalive_timeout  65;
    include /etc/nginx/conf.d/*.conf;

    server{
       listen 80;
       server_name www.fjpqy.cn;
       access_log logs/redmine.access.log;
       error_log  logs/redmine.error.log info;
       client_body_buffer_size 128k;
       proxy_connect_timeout 600;
       proxy_read_timeout 600;
       proxy_send_timeout 600;
       proxy_buffer_size 256k;
       proxy_buffers   8 256k;
       proxy_busy_buffers_size 512k;
       proxy_temp_file_write_size 512k;
      location /stat{
         rtmp_stat all;
         rtmp_stat_stylesheet stat.xsl;
      }
      location /stat.xsl{
        root /home/dev/pengqiuyuan/nginx-rtmp-module-master/;
      }
      location /test{
       alias /home/dev/pengqiuyuan/nginx-rtmp-module-master/test/rtmp-publisher/;
      }
      location /hls{
        #server hls fragments
        types{
             application/vnd.apple.mpegurl m3u8;
             video/mp2t ts;
           }
        alias /home/dev/pengqiuyuan/streaming;
        expires -1;
      }
    }
}

4.客户端部分,采集桌面视频以及ffmpeg转换以及流化音视频

之前遇到丢帧的问题,real-time buffer 276% full! frame dropped!

问题:
https://github.com/rdp/screen-capture-recorder-to-video-windows-free/issues/37

桌面音视频采集成功的例子:

ffmpeg -f dshow -i video=screen-capture-recorder -f dshow -i audio=virtual-audio-capturer -vf scale=1280:720 -vcodec libx264 -r 60.97 -acodec libvo_aacenc -ac 2 -ar 44100 -ab 128 -pix_fmt yuv420p -tune zerolatency -preset ultrafast -f flv "rtmp://192.168.1.50/hls/test"

ffmpeg(带脚本)下载地址,流媒体服务器搭建好之后,修改bat脚本里的推送地址“rtmp://192.168.1.50/hls/test”,直接点击运行就可以向服务器推送了,之后“/home/dev/pengqiuyuan/streaming”目录下面会生产m3u8、ts文件就成功了 下载地址: http://download.csdn.net/detail/pqy15005917185/8160799

阿里云就1M的带宽,被占的满满的,下载地址换到csdn上面好了

img img img img

5.视频直播+实时聊天部分,之后补充

整体思路是 nginx-rtmp(流媒体服务) + nodejs(即时聊天)

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