Practical design space exploration of an h264 decoder for handheld devices using a virtual platform

  • Authors:
  • Marius Gligor;Nicolas Fournel;Frédéric Pétrot;Fabien Colas-Bigey;Anne-Marie Fouilliart;Philippe Teninge;Marcello Coppola

  • Affiliations:
  • TIMA Laboratory, CNRS/INP Grenoble/UJF;TIMA Laboratory, CNRS/INP Grenoble/UJF;TIMA Laboratory, CNRS/INP Grenoble/UJF;Thales Communications;Thales Communications;STMicroelectronics;STMicroelectronics

  • Venue:
  • PATMOS'09 Proceedings of the 19th international conference on Integrated Circuit and System Design: power and Timing Modeling, Optimization and Simulation
  • Year:
  • 2009

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Abstract

H264 is a promising standard for mobile appliances since it allows to play on the tradeoff between data transmission rates and processing needs. This tradeoff is a common issue in mobile appliance design as it leaves space for power savings. We propose here a virtual platform based global approach, i.e. investigating hardware solutions, software solutions and both, to define a set of energy-optimized degraded operating modes for a H264 decoder software. Results of this exploration show that reasonable energy savings for degraded modes can be achieved without loosing too much image quality.