FAAD2 is an open source MPEG-4 and MPEG-2 AAC decoder, it is licensed under the GPLv2 license.
For commercial licensing of the FAAD2 AAC decoder library, please contact: Mpeg4AAClicense@nero.com
Features:
  • Portable
  • Reasonably fast
  • LC, Main, LTP, SBR, PS support
  • DRM support through DreaM
  • DAB+ support
Source packages are available in the downloads section. No binary distributions are available here, because they require a patent license. You might find binaries at RareWares.