`  == Is FDK nonfree? ==  The article says: ``The fifth is the (nonfree) libfdk-aachttps://github.com/FFmpeg/FFmpeg/blob/master/libavcodec/libfdk-aacenc.c, the Fraunhofer FDK AAC library, which is purported to be a ``high quality`` aac implementationhttp://ffmpeg.zeranoe.com/forum/viewtopic.php?f=10&t;=93&p;=1989&hilit;=aac#p1989.``  Is this accurate?  Unless I'm misinterpreting something, this is the license for the linked codec, and it appears to be reasonably free + open...`