您的位置:首页 > 运维架构 > Nginx

nginx+ffmpge+rtmp实现媒体流的直播

2017-05-14 21:36 435 查看
首先大概说一下这几个东西使用的流程。

这几个的原理就是,先用ffmpeg把媒体数据即视频或音频从传感器那里获取到,然后按照用于输入参数的要求压缩或编码成一串数据流,再把这一串数据流通过rtmp模块发给nginx,让他当做html数据发送给请求的客户,谁让他是html服务器呢。可见,rtmp只有在ffmpge和nginx之间,而nginx与用户之间不是rtmp协议,而是http协议。

首先下载nginx源码和nginx-rtmp-module的源码,放在同一个目录下面,因为编译nginx时需要使用nginx-rtmp-module的源码。

nginx的安装参考这里

nginx源码下载链接地址 官网下载链接地址

nginx-rtmp-module的源码下载页面 这里写链接内容

提醒一下,如果提示找不到OpenSSL的library,而你又能在系统中找到openssl,那多半是因为没有安装openssl-devel,使用:

sudo yum install openssl-devel


来安装。我本来是Fedora23中已经安装过了,后来在Centos7.0中安装时发现openssl已经有了,为什么还是找不到,就是因为缺少了openssl-devel。CentOS环境安装openssl-devel

注意,配置nginx的时候需要添加状态统计模块,这样方便查看客户端连接情况:

./configure --prefix=$PWD/installed --add-module=/home/bluez/work/nginx-rtmp-module --with-http_ssl_module --with-debug --with-http_stub_status_module


ffmpeg的安装我好想已经记录过了。这里

接下显示配置nginx的配置文件。

#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 {
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       8080;
server_name  localhost;

#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;
#    }
#}
#rtmp stat
#location /stat {
#   rtmp_stat all;
#rtmp_stat_stylesheet stat.xsl;
# }

#location /stat.xsl {
#   root /home/zhangwei/work/60G/my_tools/nginx-rtmp-modules;
# }

location /ngx_status {
stub_status on;
access_log off;
}

}

rtmp{
server {
listen 1935;
#chunk_size 4096;
application myapp {
live on;
}

application htl {
live on;
hls on;
hls_path /tmp/hls;
}

}
}


真正有用的是最后添加的那个rtmp的数据块。

先运行nginx,我的nginx保存在的它根目录的installed/sbin/nginx中

./installed/sbin/nginx -c /home/zhangz/work/60G/my_tools/nginx-1.13.0/installed/conf/nginx.conf


然后运行

ffmpeg -f alsa -i default:CARD=Device -ar 44100 -ac 2 -acodec aac -strict -2  -f flv rtmp://127.0.0.1:1935/myapp/test1


注意,客户端不要使用vlc测试,使用vlc会出现卡顿的情况,我从app store上下了一个mplayer,测试正常没有卡顿。
内容来自用户分享和网络整理,不保证内容的准确性,如有侵权内容,可联系管理员处理 点击这里给我发消息
标签:  rtmp nginx