A Comparative Analysis of the Time and Energy Demand of Versatile Video Coding and High Efficiency Video Coding Reference Decoders

2020 IEEE 22nd International Workshop on Multimedia Signal Processing (MMSP) Pub Date : 2020-09-21 DOI:10.1109/MMSP48831.2020.9287098

Matthias Kränzler, Christian Herglotz, A. Kaup

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引用次数: 6

Abstract

This paper investigates the decoding energy and decoding time demand of VTM-7.0 in relation to HM-16.20. We present the first detailed comparison of two video codecs in terms of software decoder energy consumption. The evaluation shows that the energy demand of the VTM decoder is increased significantly compared to HM and that the increase depends on the coding configuration. For the coding configuration randomaccess, we find that the decoding energy is increased by over 80% at a decoding time increase of over 70%. Furthermore, results indicate that the energy demand increases by up to 207% when Single Instruction Multiple Data (SIMD) instructions are disabled, which corresponds to the HM implementation style. By measurements, it is revealed that the coding tools MIP, AMVR, TPM, LFNST, and MTS increase the energy efficiency of the decoder. Furthermore, we propose a new coding configuration based on our analysis, which reduces the energy demand of the VTM decoder by over 17% on average.

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通用视频编码与高效视频编码参考解码器的时间和能量需求比较分析

本文研究了VTM-7.0的解码能量和解码时间需求与HM-16.20的关系。本文首先详细比较了两种视频编解码器在软件解码器能耗方面的差异。评估结果表明，VTM解码器的能量需求比HM解码器明显增加，并且这种增加与编码配置有关。对于编码配置随机访问，我们发现解码能量增加了80%以上，解码时间增加了70%以上。此外，结果表明，当禁用单指令多数据(SIMD)指令时，能量需求增加高达207%，这与HM实现风格相对应。通过测量，发现编码工具MIP、AMVR、TPM、LFNST和MTS提高了解码器的能量效率。在此基础上，我们提出了一种新的编码结构，使VTM解码器的能量需求平均降低17%以上。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2020 IEEE 22nd International Workshop on Multimedia Signal Processing (MMSP)

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