[FFmpeg-user] Unknown encoder 'libfaac'

Avelyne Goh avelyne_goh at hotmail.com
Wed Jan 23 04:05:35 CET 2013

> FAAC is not under a GPL-compatible license. ffmpeg build with faac
> support requires --enable-nonfree which renders ffmpeg as
> non-distributable. That is why Zeranoe ffmpeg can not support this
> encoder. Zeranoe provides the native FFmpeg AAC encoder "aac" and
> VisualOn AAC "libvo_aacenc" which probably provides similar or slightly
> worse quality. The native encoder isn't terrible at higher bitrates, so
> stay on the higher end if in doubt.I see, that makes sense.
> If you must use FAAC you can compile ffmpeg to your liking. Or find
> standalone faac command line utility (or any other external encoder),
> encode with it, and then mux the video and audio with ffmpeg.Understood. Thank you for your reply and detailed explanation Lou. 		 	   		  

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