宣告：網上有很多關於Linux系統的配置，這裡就不記錄了。剛開始搭建直播室，用的是Java語言，

Java開源的流媒體服務有Red5,但是很久沒更新了，而且文件較少不容易上手，對於直播功能相對要求較低的還是選擇ngin來搭建流媒體服務，下面是記錄搭建步驟。

一、下載搭建時需要用到的軟體

1、下載 nginx 1.7.11.3 Gryphon

連結: http://nginx-win.ecsds.eu/download/nginx 1.7.11.3 Gryphon.zip

下載完成後解壓，將檔案重新命名因為含有空格，nginx

2、下載伺服器狀態檢查程式

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

下載完成後解壓，將解壓過的檔案放到nginx根目錄，例如：E:\nginx\nginx-rtmp-module

3、下載OBS推流軟體

連結：https://obsproject.com/ 進入官網選擇下載

二、配置流媒體服務

1、修改nginx伺服器中 conf 目錄下的 nginx-win.conf 檔案，配置如下

#user  nobody;
# multiple workers works !
worker_processes  2;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs
 
/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  8192;
    # max value 32768, nginx recycling connections+registry optimization = 
    #   this.value * 20 = max concurrent connections currently tested with one worker
    #   C1000K should be possible depending there is enough ram/cpu power
    # multi_accept on;
}

rtmp {
    server {
        listen 
 
1935;
        chunk_size 4000;
        notify_method get;
        application live { #rtmp推流地址：rtmp://ip地址:1935/live
             live on;
             on_publish http://192.168.8.210/on_publish.php; #rtmp推流鑑權,如果鑑權不通過則沒有許可權進行推流
        }
    }
}

http {
    #include      /nginx/conf/naxsi_core.rules;
    include       mime.types;
    default_type  application/octet-stream;

    #log_format  main  '$remote_addr:$remote_port - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';

    #access_log  logs/access.log  main;

#     # loadbalancing PHP
#     upstream myLoadBalancer {
#         server 127.0.0.1:9001 weight=1 fail_timeout=5;
#         server 127.0.0.1:9002 weight=1 fail_timeout=5;
#         server 127.0.0.1:9003 weight=1 fail_timeout=5;
#         server 127.0.0.1:9004 weight=1 fail_timeout=5;
#         server 127.0.0.1:9005 weight=1 fail_timeout=5;
#         server 127.0.0.1:9006 weight=1 fail_timeout=5;
#         server 127.0.0.1:9007 weight=1 fail_timeout=5;
#         server 127.0.0.1:9008 weight=1 fail_timeout=5;
#         server 127.0.0.1:9009 weight=1 fail_timeout=5;
#         server 127.0.0.1:9010 weight=1 fail_timeout=5;
#         least_conn;
#     }

    sendfile        off;
    #tcp_nopush     on;

    server_names_hash_bucket_size 128;

## Start: Timeouts ##
    client_body_timeout   10;
    client_header_timeout 10;
    keepalive_timeout     30;
    send_timeout          10;
    keepalive_requests    10;
## End: Timeouts ##

    #gzip  on;

    server {
        listen       8081;
        server_name  localhost;

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

        location /stat.xsl {
            root nginx-rtmp-module/;
        }

        location /control {
            rtmp_control all;
        }

        #charset koi8-r;
        #access_log  logs/host.access.log  main;

        ## Caching Static Files, put before first location
        #location ~* \.(jpg|jpeg|png|gif|ico|css|js)$ {
        #    expires 14d;
        #    add_header Vary Accept-Encoding;
        #}

# For Naxsi remove the single # line for learn mode, or the ## lines for full WAF mode
        location / {
            #include    /nginx/conf/mysite.rules; # see also http block naxsi include line
            ##SecRulesEnabled;
              ##DeniedUrl "/RequestDenied";
              ##CheckRule "$SQL >= 8" BLOCK;
              ##CheckRule "$RFI >= 8" BLOCK;
              ##CheckRule "$TRAVERSAL >= 4" BLOCK;
              ##CheckRule "$XSS >= 8" BLOCK;
            root   html;
            index  index.html index.htm;
        }

# For Naxsi remove the ## lines for full WAF mode, redirect location block used by naxsi
        ##location /RequestDenied {
        ##    return 412;
        ##}

## Lua examples !
#         location /robots.txt {
#           rewrite_by_lua '
#             if ngx.var.http_host ~= "localhost" then
#               return ngx.exec("/robots_disallow.txt");
#             end
#           ';
#         }

        #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; # single backend process
        #    fastcgi_pass   myLoadBalancer; # or multiple, see example above
        #    fastcgi_index  index.php;
        #    fastcgi_param  SCRIPT_FILENAME  $document_root$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 spdy;
    #    server_name  localhost;

    #    ssl                  on;
    #    ssl_certificate      cert.pem;
    #    ssl_certificate_key  cert.key;

    #    ssl_session_timeout  5m;

    #    ssl_prefer_server_ciphers On;
    #    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
    #    ssl_ciphers ECDH+AESGCM:ECDH+AES256:ECDH+AES128:ECDH+3DES:RSA+AESGCM:RSA+AES:RSA+3DES:!aNULL:!eNULL:!MD5:!DSS:!EXP:!ADH:!LOW:!MEDIUM;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}

}

推流鑑權檔案PHP：on_publish.php，可以為任意服務端檔案， on_publish 指定伺服器鑑權地址,此程式碼簡單的作了使用者驗證，也可以改成帶資料庫驗證以及加入更多引數進行驗證。

<?php

// ?user=user&pass=pass

$user = isset($_POST['user']) ? $_POST['user'] : '';
$pass = isset($_POST['pass']) ? $_POST['pass'] : '';

if (empty($user) || empty($pass)) {
    echo "wrong query input";
    header('HTTP/1.0 500 error...');
    exit();
}

$saveuser = $user;
$savepass = $pass;

if (strcmp($user, $saveuser) == 0 && strcmp($pass, $savepass) == 0) {
    echo "Username and Password OK";
} else {
    echo "Username or Password wrong";
    header('HTTP/1.0 404 Not Found');
    exit();
}

?>

注意：在接受引數時一定用POST接收，否則鑑權失敗。

更新配置檔案，執行cmd命令：

> cd nginx
> nginx.exe -c conf\nginx-win.conf

2、開啟OBS客戶端進行推流測試，按照如下步驟進行配置

注意：rtmp地址：rtmp://ip地址:1935/live?user=1&pass=2，後面的引數為鑑權所用，否則連線失敗。