An open source MPEG-4 and MPEG-2 AAC decoder
This is an open source MPEG-4 and MPEG-4 ACC decoder programmed in C and used in FAAC (freeware Advanced Audio Coder). It is used with the FAAC encoder and can be compile on various platforms. It supports MPEG-4 audio object types including LC, Main, LTP, LD, ER, SBR and PS. It contains a library (libfaad) that may be used by other programs.