[FFmpeg-user] Using FFmpeg with LGPL license

Carl Eugen Hoyos cehoyos at ag.or.at
Mon Sep 1 23:50:30 CEST 2014

Victor Elizondo <velizondo <at> growthaccelerationpartners.com> writes:

> I am developing three pieces of software; an 
> iOS App, an Android app and a Website. I need 
> to user FFmpeg to encode and decode video and 
> audio. Could you provide me a checklist to 
> comply your LGPL license and successfully
> distribute my app in the Apple App Store and 
> Google Play Store.

What's wrong with http://ffmpeg.org/legal.html ?

If you will not use dynamic linking, don't 
forget to provide object files of your 
(proprietary) software for download together 
with the FFmpeg source you used: Make sure 
a user with the appropriate toolchain is 
able to change the FFmpeg source code that 
you used, can compile FFmpeg and (re-) link 
the whole application.

> One important thing to consider is that these 
> pieces of software are not open source and 
> are intended completely for commercial 
> purposes; so source code availability is out 
> of the table. Please I need your guidance.

Just to avoid any misunderstandings:
If you distribute (proprietary or non-
proprietary) software that includes FFmpeg 
source code, you have to provide the exact 
source code of FFmpeg that you used (NOT a 
link to ffmpeg.org!) to give users the usual 

Carl Eugen

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