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• SWF to PNG.. but merge all pngs inside into 1

  14 novembre 2014, par Jayden

  The title says it all,

  I’ve tried swftools and ffmepg but I don’t ’think’ they achieve what I need to do.

  Basically there is a SWF file that is made up of up to 60 images, them 60 images inside the SWF all are parts of an image that make up 1 final image or animation on an online game.

  I need to be able to download the swf as a png image with the same output it will look like on the virtual game - so not 60 images if seperate graphics, just one image with them all (merged ?) together.

  I am not even sure if this is possible to do in the commandline so if you understand any of this, please point me in the right direction.

  I am using Ubuntu 14.04

• Sending 2 streams to FFmpeg from nodejs

  18 août 2019, par Sylens

  I am trying to send 2 ReadableStreams to FFmpeg from nodejs. I have tried using fluent-ffmpeg library to do this, but it only supports sending one stream for processing. Check here

  My problem is :
  I have 2 incoming mono audio streams, I want to send them to ffmpeg to create a stereo stream, which I will then send to google’s speech to text service, to generate a transcription.

  I am successfully receiving both the mono streams to the nodejs server.
  How to utilize FFmpeg to merge them in realtime is still unclear, I could spawn a FFmpeg child process, but I’m not sure how to give 2 ReadableStreams as inputs and get the output as another stream ? FFmpeg supports multiple input streams.

  I can merge the 2 mono streams if they are in two separate files with this code.

  const { spawn } = childProcess;
  
  const ffmpeg = spawn('ffmpeg', [
  
    '-i', this.phoneAudioFile,
  
    '-i', this.micAudioFile,
  
    '-filter_complex', '[0:a][1:a]amerge=inputs=2[a]',
  
    '-map', '[a]',
  
    this.outputLosslessFile,
  
  ]);

  How can I acheive the same using 2 streams instead of 2 files ?

  EDIT

  • The incoming streams both have PCM audio data.
  • This entire process runs on a linux Ubuntu server.
  • The final output must be a wav file.

• Anomalie #3407 : La colonne "extension" est vide concernant certaine url distante

  12 mars 2015, par Franck Dalot

  Je viens de découvrir un truc qui aidera peut-être.
  Comme je disais, les 2 docs, avec les adresses youtube ne sont pas visible ici :
  .../ecrire/ ?exec=documents
  Par contre, ils sont visible (mais sans l’extension) lorsque l’on fait la création d’un article et que l’on clique sur "parcourir" depuis la médiathèque.