nginx.conf

daemon off;
worker_processes  1;
error_log /dev/stdout info;

events {
    worker_connections 1024;
}

rtmp_auto_push on;
rtmp {
    server {
        listen ${RTMP_PORT};
        chunk_size 4000;
	play_time_fix off;
	interleave on;
	publish_time_fix on;
	
        application stream {
            live on;
            exec /usr/local/bin/ffmpeg -hwaccel cuda -hwaccel_output_format cuda -c:v h264_cuvid -i rtmp://localhost:1935/stream/$name
              -c:a libfdk_aac -b:a 128k -vf scale_npp=1280:720 -c:v h264_nvenc -b:v 2500k -f flv -g 30 -r 30 rtmp://localhost:1935/hls/$name_720p2628kbs
              -c:a libfdk_aac -b:a 128k -vf scale_npp=854:480 -c:v h264_nvenc -b:v 1000k -f flv -g 30 -r 30 rtmp://localhost:1935/hls/$name_480p1128kbs
              -c:a libfdk_aac -b:a 128k -vf scale_npp=640:360 -c:v h264_nvenc -b:v 750k -f flv -g 30 -r 30 rtmp://localhost:1935/hls/$name_360p878kbs
              -c:a libfdk_aac -b:a 128k -vf scale_npp=426:240 -c:v h264_nvenc -b:v 400k -f flv -g 30 -r 30 rtmp://localhost:1935/hls/$name_240p528kbs
              -c:a libfdk_aac -b:a 64k -vf scale_npp=426:240 -c:v h264_nvenc -b:v 200k -f flv -g 15 -r 15 rtmp://localhost:1935/hls/$name_240p264kbs;

	}

        application hls {
            live on;
            hls on;
            hls_fragment_naming system;
            hls_fragment 5;
            hls_playlist_length 5;
            hls_path /opt/data/hls;
            hls_nested on;

            hls_variant _720p2628kbs BANDWIDTH=2628000,RESOLUTION=1280x720;
            hls_variant _480p1128kbs BANDWIDTH=1128000,RESOLUTION=854x480;
            hls_variant _360p878kbs BANDWIDTH=878000,RESOLUTION=640x360;
            hls_variant _240p528kbs BANDWIDTH=528000,RESOLUTION=426x240;
            hls_variant _240p264kbs BANDWIDTH=264000,RESOLUTION=426x240;
        }
    }
}

http {
    access_log /dev/stdout combined;

    ssl_ciphers         HIGH:!aNULL:!MD5;
    ssl_protocols       TLSv1 TLSv1.1 TLSv1.2;
    ssl_session_cache   shared:SSL:10m;
    ssl_session_timeout 10m;

    sendfile off;
    tcp_nopush on;
    aio on;
    directio 512;
    default_type application/octet-stream;

    server {
        listen ${HTTP_PORT};

        # Uncomment these lines to enable SSL.
        # Update the ssl paths with your own certificate and private key.
        # listen 443 ssl;
        # ssl_certificate     /opt/certs/example.com.crt;
        # ssl_certificate_key /opt/certs/example.com.key;

        location /hls {
            root /opt/data;
            add_header 'Cache-Control' 'no-cache';
	    add_header 'Access-Control-Allow-Origin' '*' always;
            add_header 'Access-Control-Expose-Headers' 'Content-Length';
	    # allow CORS preflight requests
            if ($request_method = 'OPTIONS') {
                add_header 'Access-Control-Allow-Origin' '*';
                add_header 'Access-Control-Max-Age' 1728000;
                add_header 'Content-Type' 'text/plain charset=UTF-8';
                add_header 'Content-Length' 0;
                return 204;
            }
            types {
                application/dash+xml mpd;
                application/vnd.apple.mpegurl m3u8;
                video/mp2t ts;
            }
	}

        location /live {
          alias /opt/data/hls;
	  add_header 'Cache-Control' 'no-cache';
            add_header 'Access-Control-Allow-Origin' '*' always;
            add_header 'Access-Control-Expose-Headers' 'Content-Length';
            # allow CORS preflight requests
            if ($request_method = 'OPTIONS') {
                add_header 'Access-Control-Allow-Origin' '*';
                add_header 'Access-Control-Max-Age' 1728000;
                add_header 'Content-Type' 'text/plain charset=UTF-8';
                add_header 'Content-Length' 0;
                return 204;
            }
            types {
                application/dash+xml mpd;
                application/vnd.apple.mpegurl m3u8;
                video/mp2t ts;
            }
	}

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

        location /static {
            alias /www/static;
        }
	location / {
	    root /www/static;
	}
    }
}