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• NGINX-RTMP : adaptive multi bitrate streaming by ffmpeg got BLACK SREEN OUT PUT

  28 mars 2022, par duxng17

  I am using Nginx-rtmp for live adaptive bitrate streaming with HLS from OBS .
The encoding is run ok , but my livestream output in my web got black screen and still have the sound . i tried many ways to fix my issue but i cant . just helping me .
THIS IS MY NGINX CONFIG :

  


  rtmp {
    server {
        listen 1935;
        chunk_size 4000;
        application live {
            live on;
            on_publish http://auth_sever:8000/auth;
            exec ffmpeg -i rtmp://localhost/live/$name
                        -c:v libx264 -profile:v baseline -b:v 768K -s 640x360 -crf 23 -f flv -c:a aac -ac 1 -strict -2 -b:a 96k rtmp://localhost/show/$name_360
                        -c:v libx264 -profile:v baseline -b:v 1024K -s 960x540 -crf 23 -f flv -c:a aac -ac 1 -strict -2 -b:a 128k rtmp://localhost/show/$name_480
                        -c:v libx264 -profile:v baseline -b:v 1920K -s 1280x720  -crf 23 -f flv -c:a aac -ac 1 -strict -2 -b:a 128k rtmp://localhost/show/$name_720
                       -c:v libx264 -profile:v baseline -b:v 4000K -s 1920x1080 -crf 23 -f flv -c:a aac -ac 1 -strict -2 -b:a 128k rtmp://localhost/show/$name_1080;
        }
        application show {
            live on;
            deny play all; # disable consuming the stream from nginx as rtmp
            hls on;
            hls_path /tmp/hls; 
            hls_nested on;
            hls_fragment 4s; # default is 5s
            hls_playlist_length 60s;
            hls_variant _360 BANDWIDTH=448000;
            hls_variant _480 BANDWIDTH=1152000;
            hls_variant _720  BANDWIDTH=2048000;
            hls_variant _1080 BANDWIDTH=4096000; 
        }
    }
}

http {
    sendfile off;
    tcp_nopush on;
    directio 512;
    default_type application/octet-stream;
    # LOAD-BALANCED
    upstream myapp {
        server localhost:8001;
        server auth_sever:8000;
    }
    server {
        listen 8080 default_server;
        location / {
        proxy_pass http://myapp;
        proxy_set_header Host            $host;
        proxy_set_header X-Forwarded-For $remote_addr;
        }
    }
    server {
        listen 8081;
        location / {
            root /www;
        }
        location /hls {
            types {
                application/vnd.apple.mpegurl m3u8;
                application/octet-stream ts;
            }
            # Disable cache
            add_header 'Cache-Control' 'no-cache';

            # CORS setup
            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;
            }
            root /tmp;
        }
    }
}


  


  THIS MY DOCKERFILE CONFIG :

  


  FROM tiangolo/nginx-rtmp
RUN apt-get -y update
RUN apt-get -y upgrade
RUN apt-get install -y ffmpeg
COPY nginx.conf /etc/nginx/nginx.conf
COPY index.html /www/


  


  THE LAST , SORRY , MY ENG IS NOT GOOD ! thank for helping !

  


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  I'd been making single-image slideshows with ffmpegs for a long while without issue. Suddenly, sans any alteration to my previous install, the output from simple inputs like

  


  


  ffmpeg -r 1 -ss 00:00:17 -i "D :\x\y\z\a.flac" -i "C :\b\c\d\e.jpg" -b:v 1M -t 30 -map 0:a:0 -map 1:v:0 C :\f\g.mp4

  


  


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