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• docu : add word resize to scale filter, to make searching for the word resize simpler

  15 octobre 2012, par rogerdpack

  docu : add word resize to scale filter, to make searching for the word resize simpler

• Electron, Chromium and ffmpeg licencing confusion, how to build electron with licence compatible ffmpeg [migrated]

  12 mars 2021, par Iamisti

  Intro :
Recently I'm working on an electron based application that is free to use but also has subscription based services.
It came to my attention that ffmpeg is shipped with electron, which has GPL/LGPL licence.

  


  My quetion is :

  


  

  • Am I legally able to still distribute the application and be licence-compliant with ffmpeg without owning any proper licence to it ? I thought chromium dealt with the licencing on this topic since so many applications nowadays are shipped with using electron and chromium under the hood.

  


  • How do I compile/build electron to make it licence compatible (in case its not ?)

  


  


  I did a lot of reseearch and I found out the followings :

  


  


  • ffmpeg is shipped with chromium, they built their own version of ffmpeg and it seems they also have licence for it. Although that might be that they just push the responsibility down on the software developer/company who distributes their application with chromium.
Chromium licence for ffmpeg : https://chromium.googlesource.com/chromium/third_party/ffmpeg/+/703e920bb75053bf6b87d41d198cbbfbce3fb7ad/LICENSE

    


  


  • Apparently ffmpeg has a checklist of how to be licence compliant. Does that mean if I do all these steps, I can still distribute the application and can legally use it ? Licence checklist for ffmpeg : http://ffmpeg.org/legal.html

    


  


  • checking out some popular electron applications like Discord, Figma, Slack, etc... they ALL have ffmpeg included cause of electron when you install them. I wonder how they made it legal ? I don't see any of these checklists done on any of these popular applications.

    


  


  


  I'm know very little regarding licences, so any help would be incredibly huge help for me.

  


• PHP exec not working properly

  18 octobre 2011, par asd

  I'm trying to run ffmpeg in my WAMP server with the exec command. Though I have set in the .htaccess file "php_value safe_mode off" and apache allow the override, the exec is still not working properly. if I try to execute

     <?
  
     php exec("mkdir aaa");  
  
     ?>

  it works, but when I do something like

      exec("ffmpeg.exe -y -i D:\Documents\Video.wmv -f mp4  D:\Documents\Video.mp4 -y");

  it doesn't do nothing. This works fine is prompted in the command line, but for some reason it doesn't when I try to execute it from the server.
  Do you have any ideas ?