I can't convert video in Winff. It says Unknown encoder 'libfaac'. This problem happened after update libavcode.I had already Medibuntu Repository added and libavcode-extra-53 installed.
The output of ffmpeg -formats | grep aac was
ffmpeg version 0.8.3-4:0.8.3-0ubuntu0.12.04.1, Copyright (c) 2000-2012 the Libav developers
built on Jun 12 2012 16:52:09 with gcc 4.6.3
*** THIS PROGRAM IS DEPRECATED ***
This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.
D aac raw ADTS AAC