Estimating the HEVC Decoding Energy Using the Decoder Processing Time
Christian Herglotz, Elisabeth Walencik, Andr\'e Kaup
TL;DR
This paper introduces a method to estimate HEVC decoding energy accurately based on decoder processing time, validated through extensive measurements, aiding development of energy-efficient video codecs.
Contribution
It demonstrates that decoder processing time is a reliable predictor of decoding energy, enabling energy estimation without direct power measurements.
Findings
Processing time correlates strongly with decoding energy.
Method validated across various decoder setups and video streams.
Supports development of energy-efficient video codecs.
Abstract
This paper presents a method to accurately estimate the required decoding energy for a given HEVC software decoding solution. We show that the decoder's processing time as returned by common C++ and UNIX functions is a highly suitable parameter to obtain valid estimations for the actual decoding energy. We verify this hypothesis by performing an exhaustive measurement series using different decoder setups and video bit streams. Our findings can be used by developers and researchers in the search for new energy saving video compression algorithms.
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