MPEG is the name of a working group established under the joint direction of the international standards organisation/international electrotechnical commission (iso/iec), that has for goal to create standards for the digital video and the audiophonic compression. More precisely, MPEG defines the syntax of audio and video format needing low data rates, as well as operations to be undertaken by decoders.
Algorithms used by encoders are not defined by MPEG. This authorizes continual encoder improvements as well as their adaptation to specific applications, without necessitating any redefinition of the arrangement of data. Jointly to the audio and video coding, mpeg defines also methods aiming to test the conformity to standards of formats and decoder, and publishes technical reports.
text © Gabriel Bouvigne - mp3-tech.org