nginx、nginx-rtmp-module模块实现流媒体play、push、pull功能
原帖地址:http://blog.51cto.com/lyd0721/1429803
官方wiki:https://github.com/arut/nginx-rtmp-module#readme
Nginx rtmp 功能特点
1. 支持音视频直播
2. 支持flv/mp4视频格式,输入可以是文件或者HTTP流
3. 支持两种流的分发模式 pushand pull
4. 可以将直播流录制成flv文件
5. H264/AAC编码
6. 支持在线转码 Onlinetranscoding with FFmpeg
7. 支持HLS (HTTP LiveStreaming)需要 libavformat (>= 8. 53.31.100) from ffmpeg (ffmpeg.org)
8. HTTPcallbacks (publish/play/record/update etc)
9. 支持外部程序(exec)
10. HTTPcontrol module for recording audio/video and dropping clients
11. 先进内存控制技术,可以在使用少量内存的情况下完成流畅的直播功能。
12 . 可以和以下协同工作。FMS server(Wirecast, FMS, Wowza,)Player(JWPlayer, FlowPlayer, StrobeMediaPlayback,)外部程序(ffmpeg,avconv,rtmpdump,flvstreamer )
13. Statistics in XML/XSL in machine- & human- readable form
14. 支持跨平台 Linux/FreeBSD/MacOS
实现环境:
rhel6.1 | 172.16.6.36 |
rhel6.1 | 172.16.6.39 |
编译环境:安装gcc、openssl-devel、pcre-devel
网络yum源配置参考链接:http://lyd0721.blog.51cto.com/4894702/1428467
下载并解压nginx-rtmp-module模块
编译安装nginx
./configure \ --prefix=/usr/local/nginx \ --with-openssl=/usr/local/openssl \ --with-pcre \ --with-http_ssl_module \ --with-http_v2_module \ --with-http_gunzip_module \ --with-http_gzip_static_module \ --with-http_perl_module \ --with-stream \ --with-http_flv_module \ --with-http_mp4_module \ --add-module=../nginx-rtmp-module \ --add-module=../nginx_tcp_proxy_module
在/etc/init.d/目录下为nginx提供服务器脚本并赋予其执行权限
#!/bin/sh # # nginx - this script starts and stops the nginx daemon # # chkconfig: - 85 15 # description: Nginx is an HTTP(S) server, HTTP(S) reverse \ # proxy and IMAP/POP3 proxy server # processname: nginx # config: /etc/nginx/nginx.conf # config: /etc/sysconfig/nginx # pidfile: /var/run/nginx.pid # Source function library. . /etc/rc.d/init.d/functions # Source networking configuration. . /etc/sysconfig/network # Check that networking is up. [ "$NETWORKING" = "no" ] && exit 0 nginx="/usr/sbin/nginx" prog=$(basename $nginx) NGINX_CONF_FILE="/etc/nginx/nginx.conf" [ -f /etc/sysconfig/nginx ] && . /etc/sysconfig/nginx lockfile=/var/lock/subsys/nginx make_dirs() { # make required directories user=`nginx -V 2>&1 | grep "configure arguments:" | sed 's/[^*]*--user=\([^ ]*\).*/\1/g' -` options=`$nginx -V 2>&1 | grep 'configure arguments:'` for opt in $options; do if [ `echo $opt | grep '.*-temp-path'` ]; then value=`echo $opt | cut -d "=" -f 2` if [ ! -d "$value" ]; then # echo "creating" $value mkdir -p $value && chown -R $user $value fi fi done } start() { [ -x $nginx ] || exit 5 [ -f $NGINX_CONF_FILE ] || exit 6 make_dirs echo -n $"Starting $prog: " daemon $nginx -c $NGINX_CONF_FILE retval=$? echo [ $retval -eq 0 ] && touch $lockfile return $retval } stop() { echo -n $"Stopping $prog: " killproc $prog -QUIT retval=$? echo [ $retval -eq 0 ] && rm -f $lockfile return $retval } restart() { configtest || return $? stop sleep 1 start } reload() { configtest || return $? echo -n $"Reloading $prog: " killproc $nginx -HUP RETVAL=$? echo } force_reload() { restart } configtest() { $nginx -t -c $NGINX_CONF_FILE } rh_status() { status $prog } rh_status_q() { rh_status >/dev/null 2>&1 } case "$1" in start) rh_status_q && exit 0 $1 ;; stop) rh_status_q || exit 0 $1 ;; restart|configtest) $1 ;; reload) rh_status_q || exit 7 $1 ;; force-reload) force_reload ;; status) rh_status ;; condrestart|try-restart) rh_status_q || exit 0 ;; *) echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload|configtest}" exit 2 esac
[root@localhost ~]# chmod +x nginx
添加nginx至服务列表并设置其开机自动启动
[root@localhost ~]# chkconfig --add nginx
[root@localhost ~]# chkconfig nginx on
备份/etc/nginx配置文件,把nginx-rtmp-module-master/test/nginx.conf复制到/etc/nginx目录下
[root@localhost ~]# cd /etc/nginx/ [root@localhost nginx]# mv nginx.conf nginx.conf.bak [root@localhost ~]# cd nginx-rtmp-module-master/test/ [root@localhost test]# mv nginx.conf /etc/nginx/
修改/etc/nginx/nginx.conf配置文件
172.16.6.39上面的环境与172.16.6.36相同,只不过要在172.16.6.39上实现pull的功能
下载一个.flv结尾的视频文件,使用ffmpeg模拟视频直播源进行测试play、push及pull功能是否实现
使用ffmpeg模拟直播效果,ffmpeg下载链接http://www.ffmpeg.org/download.html
进入ffmpeg-2.2.1-64bit-static目录下,执行如下命令
[root@localhost ffmpeg-2.2.1-64bit-static]# ./ffmpeg -re -i ~/2014.flv -f flv rtmp://172.16.6.36/myapp/test1
然后登录此链接验证能够播放:http://www.wowza.com/resources/3.5.0/examples/LiveVideoStreaming/FlashRTMPPlayer/player.html
验证pull功能是否实现
验证push功能
使用ffmpeg推流的时候,应该推至/mypush中,/mypush有流之后才能push至172.16.6.39的/myapp中,所以执行如下命令
1
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[root@localhost ffmpeg-2.2.1-64bit-static] # ./ffmpeg -re -i ~/2014.flv -f flv rtmp://172.16.6.36/mypush/test1 |
刚开始学习nginx-rtmp,可能很多地方写的有出入