[FFmpeg-user] Licensing: Modified FFmpeg with a call to an external library

[Carl Eugen Hoyos]

mvram <ram <at> modernvideo.co> writes:

> I make a change in a FFmpeg source file and call a function from a
> dynamically linked external library (libmyext). I configure FFmpeg 
> without "enable-gpl" and without "enable-nonfree". The only way 
> the modified code will be invoked is if FFmpeg is configured with 
> --enable-myext. I update my EULA as mentioned in the Checklist at 
> http://ffmpeg.org/legal.html and I make the source code for the 
> updated FFmpeg available on my website. 
> 
> Can I include FFmpeg in my product distribution?

Make sure you follow all license terms of the LGPL or 
follow http://ffmpeg.org/legal.html
(ianal, but you can link whatever you want against LGPL'd 
FFmpeg but you must not forbid reverse-engineering the result.)

Carl Eugen