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• Node.js FFMPEG Reporting Progress Architecture

  11 septembre 2018, par munkee

  I’m running a node.js HTTP server which has a video conversion API built using ffmpeg. I am wondering how best to report on the progress of the file conversion to a separate front end. The HTTP server is going to be standalone as its own service, so I would like to be able to render the percentage complete of the conversion to another server with a simple front end. Upon completion of the conversion the file is downloaded automatically.

  My current end point /convert takes a file URL with a .mov extension, downloads the file and runs it through the conversion process to only output Audio. Using response headers I force the browser to download the file once the conversion has ended, I also delete the temporary file once download has completed.

  A full request would look like

  https://www.someurl.com/convert?file=https://www.filetodownload.com/Skating.mov

  I am using the fluent-ffmpeg npm package : https://github.com/fluent-ffmpeg/node-fluent-ffmpeg which serves a "progress" event :

  ffmpeg('/path/to/file.avi')
  
    .on('progress', function(progress) {
  
      console.log('Processing: ' + progress.percent + '% done');
  
    });

  I am thinking of emitting the progress.percent information on to a separate endpoint maybe along the lines of :

  https://www.someurl.com/progress

  Which will simply be my http server sending the percentage back to the browser. I feel as though I am going about the architecture incorrectly and there must be a better way of architecting the final outcome.

• Use ffmpeg to stream an updating progress-bar

  24 juin 2020, par Falk

  Is there a way to stream a filling progress-bar showing a percentage written in either a (e.g. txt) file or mysql db that updates often ? Ideally streaming to obs or straight to the platform/stream (such as twitch) ?

  


  I thought about using the text function, something like this :
  
-vf "drawtext=fontsize=40:fontfile=FreeSerif.ttf:textfile=/path/livetext.txt:x=(w-text_w)/2:y=(h-text_h)/2:reload=1"

  


• How convert High bitrate mp3 to lower rate using ffmpeg in android

  23 mars 2018, par Android Team

  We want to convert 320kbps mp3 file to 128kbps mp3 so currently we are using below ffmpeg command but its not working.

  ffmpeg -i input.mp3 -codec:a libmp3lame -qscale:a 5 output.mp3

  Result :-the output bitrate same as input mp3.

  And we are following the FFmpeg Encoding guideline for that here is the link :- https://trac.ffmpeg.org/wiki/Encode/MP3

  so please suggest any solution.