The present paper describes an Electronic System Level (ESL) design methodology which was established and employed
in the creation of a H.264/AVC baseline decoder. The methodology involves the synthesis of the algorithmic description
of the functional blocks that comprise the decoder, using a high level synthesis tool. Optimization and design space
exploration is carried out at the algorithmic level before performing logic synthesis. Final, post-place and route
implementation results show that the decoder can operate at the target frequency of 100 MHz and meet real time
requirements for QCIF frames.