The impact of encoding algorithms on MPEG VLSI implementation

The goal of this paper is to study the impact of MPEG encoding algorithms from a system-level design viewpoint. An area-time estimation tool is developed to extract the timing requirement and silicon area for various combinations of hardware modules and algorithms. After complemented the design of several modules in an MPEG encoder, we found that the motion estimation and rate control modules consume most part of the silicon area in the encoding chip. We also evaluated the entire chip area of a few cases for two picture formats. The methodology and results presented here should provide useful guidelines in selecting an appropriate MPEG encoding algorithm for VLSI design