Codificação de Vídeo H.264/AVC em Tempo Real e Restrita por Energia

Tiago A. da Fonseca, Ricardo L. de Queiroz

DOI: 10.14209/sbrt.2012.37

Evento: XXX Simpósio Brasileiro de Telecomunicações (SBrT2012)

Keywords: H.264 predições escalabilidade de energia controle de taxa codificação de vídeo em tempo real.

Abstract

Video communications have demanded higher computing power and, therefore, higher energy expenditure. To provide greener software-based video encoding solutions, we studied a method to optimize the prediction stage of H.264/AVC in the energy sense (E) and tested it with a software implementation. Besides looking for the coding options to the best RDperformance, the process is constrained to fit within a certain energy budget by an RDE optimization. We measure E as the real demanded electric energy for a given system. Our RDEoptimized framework allows for software-based real-time video compression constrained electrical consumption. We show results of energy-constrained compression and in some cases one can save as much as 35% of the energy with small impact on RD performance.

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