-The nonfree external libraries libamrnb and libamrwb can be hooked up in FFmpeg.
-You need to pass --enable-nonfree to configure to enable them. Employ this
-option with care as FFmpeg then becomes nonfree and unredistributable.
+The nonfree external libraries libamrnb, libamrwb and libfaac can be hooked up
+in FFmpeg. You need to pass --enable-nonfree to configure to enable them. Employ
+this option with care as FFmpeg then becomes nonfree and unredistributable.
+Note that libfaac claims to be LGPL, but is not.