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• Node.js fluent-ffmpeg dependency setup

  12 mai 2016, par rpm

  I’m new to Node.js and I’m trying to work my way through using fluent-ffmpeg in my project. I have my node_modules directory setup with my dependencies that I installed with npm install. However, I’m confused with some of the wording in the fluent-ffmpeg install inst

  If the FFMPEG_PATH environment variable is set, fluent-ffmpeg will use it as the full path to the ffmpeg executable. Otherwise, it will attempt to call ffmpeg directly (so it should be in your PATH). You must also have ffprobe installed (it comes with ffmpeg in most distributions). Similarly, fluent-ffmpeg will use the FFPROBE_PATH environment variable if it is set, otherwise it will attempt to call it in the PATH.

  What does this mean ? If I’m understanding this correctly, fluent-ffmpeg will use the ffmpeg executable that is installed on my machine (if any), and that I need to set the path to that variable locally ? What if I want to use the ffmpeg executable that I have installed as a dependency in my node_modules folder of my project ?

• How to run ffmpeg on demand when someone opens my website with the player where a remote IP camera is displayed ?

  8 mai 2023, par alexiter

  I set up an nginx server to stream from an IP camera located elsewhere, I used a windows server because it was the one I had no use for (I usually prefer linux), I would need to know how I can make the ffmpeg command run only when someone opens the website where the player is located.

  


  This is my nginx.conf server code :

  


  worker_processes  1;

error_log  logs/error.log info;

events {
    worker_connections  1024;
}
rtmp {
    server {
        listen 1935;
        ping 30s;
        notify_method get;
        application live {
            live on;
            on_publish http://*******:8080/auth;
            dash on; 
            dash_path tmp/dash;
            
            
        }
    }
}
http{

   server {
        listen 8080;
        location /auth {
        if ($arg_psk = '*****') {
    return 201;
    }
  return 404;
  }
}
   
   server {
        listen 8443 ssl;
        server_name stream.*****.com;
        
        ssl on;
        ssl_certificate C:/Certbot/live/stream.*****.com/fullchain.pem;
        ssl_certificate_key C:/Certbot/live/stream.****.com/privkey.pem;
        ssl_session_timeout 5m;
        charset utf-8;
        location /dash {
            root tmp;
            add_header Cache-Control no-cache;
        }
        location / {
            root www;
        }
        

   }
}



  


  The command that I use from the DOS console in windows is this :

  


  ffmpeg -rtsp_transport tcp -i rtsp://*****:******@******.com:557/Streaming/Channels/101 -c copy -f flv -y -t 35 rtmp://********:1935/live/stream?psk=********


  


  Basically what I need is that ffmpeg is not running constantly, only when someone wants to view the video from the IP camera. (I have programmed ffmpeg to finish after 35 seconds, although I will put five minutes later)

  


• extracting header information of video file

  1er juin 2021, par david

  I have some video files that encode them using FFmpeg and produce mp4 files. now I need to extract header information of video files and dump this information (like the size of macroblock, motion vector,...) into a file and use this information for feature extraction. but I do not know how can I extract header information. do you know any software or sth like this for extracting header information. I used JM software and xmltracefile, but it doesn't work and produce lots of errors. if you have any suggestions or tutorials for this issue please let me know. Thank you.