 MPEG-4

MPEG-4 is a method of defining compression of audio and visual (AV) digital data.It was introduced in late 1998 and designated a standard for a group of audio and video coding formats and related technology agreed upon by the ISO/IEC Moving Picture Experts Group (MPEG) (ISO/IEC JTC1/SC29/WG11) under the formal standard ISO/IEC 14496 – "Coding of audio-visual objects".