MPEG
From Saferpedia
The Moving Picture Experts Group (MPEG) is a working group of experts that was formed by ISO and IEC (International Electrotechnical Commission) to set standards for audio and video compression and transmission.
In May 1988 was the first meeting of the MPEG, in Ottawa, Canada and until 2005, it has grown to include approximately 350 members per meeting from various industries, universities, and research institutions. MPEG's official designation is ISO/IEC JTC1/SC29 WG11 - Coding of moving pictures and audio (ISO/IEC Joint Technical Committee 1, Subcommittee 29, Working Group 11).
MPEG groups of standards
The MPEG standards consist of different Parts and each part covers a certain aspect of the whole specification. The standards specify Profiles and Levels too. Profiles are intended to define a set of tools that are available, and Levels define the range of appropriate values for the properties associated with them. Some of the approved MPEG standards were revised by later amendments and/or new editions. MPEG has standardized the following compression formats and ancillary standards:
| Acronym for a group of standards | Title | ISO/IEC standards | First public release date (First edition) | Description |
|---|---|---|---|---|
| MPEG-1 | Coding of moving pictures and associated audio for digital storage media at up to about 1,5 Mbit/s | ISO/IEC 11172 | 1993 | |
| MPEG-2 | Generic coding of moving pictures and associated audio information | ISO/IEC 13818 | 1995 | |
| MPEG-3 | abandoned, incorporated into MPEG-2 | |||
| MPEG-4 | Coding of audio-visual objects | ISO/IEC 14496 | 1999 | |
| MPEG-7 | Multimedia content description interface | ISO/IEC 15938 | 2002 | |
| MPEG-21 | Multimedia framework (MPEG-21) | ISO/IEC 21000 | 2001 | |
| MPEG-A | Multimedia application format (MPEG-A) | ISO/IEC 23000 | 2007 | |
| MPEG-B | MPEG systems technologies | ISO/IEC 23001 | 2006 | |
| MPEG-C | MPEG video technologies | ISO/IEC 23002 | 2006 | |
| MPEG-D | MPEG audio technologies | ISO/IEC 23003 | 2007 | |
| MPEG-E | Multimedia Middleware | ISO/IEC 23004 | 2007 | |
| (none) | Supplemental media technologies | ISO/IEC 29116 | 2008 | will be revised in MPEG-M Part 4 - MPEG extensible middleware (MXM) protocols |
| MPEG-V | Media context and control | ISO/IEC FCD 23005 | under development | |
| MPEG-M | MPEG extensible middleware (MXM) | ISO/IEC FCD 23006 | under development | |
| MPEG-U | Rich media user interfaces | ISO/IEC FDIS 23007 | under development |
