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The MPEG reconfigurable video coding (RVC) framework aims to provide a unified specification of all video technology. In this framework, a decoder is modularly built as a configuration of video coding tools taken from the MPEG toolbox library. The elements of the library are specified using the CAL actor language. CAL is a dataflow based language providing computation models that are concurrent and modular. This paper presents a synthesis tool that from a CAL specification generates C code. Indeed, code generators are fundamental supports for the deployment and success of the MPEG RVC framework. This paper focuses on the automatic translation of a CAL actor. This approach has been used to obtain a C implementation of the inverse DCT module which is part of the MPEG-4 Simple Profile decoder, chosen by MPEG experts to validate the RVC approach. The generated code is validated against the original CAL description and simulated using the Open Dataflow environment.
Date of Conference: 12-15 Oct. 2008