Copyright 2004 Ken Greenebaum
MPEG-3 and -4 standards
n
MPEG-3: Abandoned when MPEG-2 proved
sufficient for HDTV
n
MPEG-4: Intended for very low bitrate
n
Adds objects, 3D scenegraph, DRM, and more
efficient encoding
n
Intended for very low rates < 64Kb/s
n
But CODEC useful for very high quality too