Power aware H.264/AVC video player on PAC dual-core soc platform

  • Authors:

  • Jia-Ming Chen;Chih-Hao Chang;Shau-Yin Tseng;Jenq-Kuen Lee;Wei-Kuan Shih

  • Affiliations:

  • Department of Computer Science, National Tsing Hua University, Hsinchu, Taiwan;SoC Integration Division of STC, ITRI, Hsinchu, Taiwan;SoC Integration Division of STC, ITRI, Hsinchu, Taiwan;Department of Computer Science, National Tsing Hua University, Hsinchu, Taiwan;Department of Computer Science, National Tsing Hua University, Hsinchu, Taiwan

  • Venue:
  • EUC'06 Proceedings of the 2006 international conference on Embedded and Ubiquitous Computing
  • Year:
  • 2006

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Abstract

This paper proposes a novel power-aware scheme of H.264/AVC video player for the PAC SoC platform based on its modern dual-core architecture with DVFS capability. Energy/power is saved by the global view of power state transitions on the dual-core subsystem according to a user's behaviors of playing a video. When the user stays in continuous video decoding, a fine-grain power-aware scheme is devised to save the energy/power in advance. Especially the fine-grain model is suitable for any standard coded H.264/AVC video without extra modifications. We also discuss a workable reduction technique when imprecise video decoding time is permitted under soft real-time constraint. For a similar SoC platform with the dual-core architecture and DVFS capability, the idea presented here is, to the best of our knowledge, the first power-aware design of H.264/AVC video player