[Libav-user] LGPL and FFMPeg internal aac encoder

Carl Eugen Hoyos cehoyos at ag.or.at
Fri Sep 28 22:05:30 CEST 2012

Tim Cannell <tim at ...> writes:

> I have configured FFMpeg as described below - at the bottom 
> of the output listed below, from the configure tool, it says 
> "License: LGPL version 2.1 or later" which I want to believe.

Good idea!

> Can anyone confirm that this aac encoder implementation is 
> indeed LGPL.

I am not sure I understand:
The code was released under the LGPL, ie the person 
who implemented it decided to release it under the LGPL.
Do you need any more confirmation?

> Is it just libaacplus which is not under the LGPL ?

I suspect libaacplus is younger than FFmpeg's internal 
aac encoder (but I admit I did not check).
Note that afaict, the internal aac encoder does not 
support AAC+.

Carl Eugen

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