Dirac. MPEG-4 ASP a.k.a. “MPEG-4 Advanced Simple Profile.” MPEG-4 ASP was developed by the MPEG group and standardized in 2001. You may have heard of DivX , Xvid , or 3ivx ; these are all competing implementations of the MPEG-4 ASP standard. Xvid is open source ; DivX and 3ivx are