A codesign synthesis from an MPEG-4 decoder dataflow description

Nicolas Siret (1) , I. Sabry (2) , Jean François Nezan (1) , Mickaël Raulet (1)

1 IETR - Institut d'Électronique et des Technologies du numéRique
2 LTD - LeadTech Design

The elaboration of new and innovative systems such as MPSoC (Multiprocessor System on Chip) which are made up of multiple processors, memories and IPs lies on the designers to achieve a complex codesign work. Specific tools and methods are needed to cope with the increasing complexity of both algorithms and platforms. Our approach to design such systems is based on the usage of a high level of abstraction language called RVC CAL. This language is dataflow oriented and thus points out the concurrency and parallelism of algorithms. Moreover CAL is supported by the OpenDF simulator and by two code generators called CAL2C (software generator) and CAL2HDL (hardware generator). The MPEG expert group has recently elaborated the Reconfigurable Video Coding (RVC) standard which defines the RVC CAL language as reference for MPEG video decoder descriptions. This paper introduces the opportunities to design an innovative system involving hardware and software IPs, embedded processors and memories from a CAL model. Practical results on a FPGA are provided with a codesign solution of an MPEG4 Simple Profile (SP).

Mots clés: CAL model; IP; MPEG-4; MPSoC; RVC; abstraction language; codesign synthesis; decoder dataflow; embedded processor; innovative system; multiple processor; multiprocessor system on chip; reconfigurable video coding; data flow computing; hardware description languages; hardware-software codesign; multiprocessing systems; parallel memories; reconfigurable architectures; system-on-chip; video coding

Domaines: Systèmes embarqués

Nicolas Siret, I. Sabry, Jean François Nezan, Mickaël Raulet. A codesign synthesis from an MPEG-4 decoder dataflow description. Circuits and Systems (ISCAS), Proceedings of 2010 IEEE International Symposium on, May 2010, Paris, France. pp.1995 -1998, ⟨10.1109/ISCAS.2010.5537107⟩. ⟨hal-00560031⟩