APSIPA Transactions on Signal and Information Processing > Vol 9 > Issue 1

An Overview of Coding Tools in AV1: the First Video Codec from the Alliance for Open Media

Yue Chen, Google, USA, yuec@google.com , Debargha Mukherjee, Google, USA, yuec@google.com , Jingning Han, Google, USA, Adrian Grange, Google, USA, Yaowu Xu, Google, USA, Sarah Parker, Google, USA, Cheng Chen, Google, USA, Hui Su, Google, USA, Urvang Joshi, Google, USA, Ching-Han Chiang, Google, USA, Yunqing Wang, Google, USA, Paul Wilkins, Google, USA, Jim Bankoski, Google, USA, Luc Trudeau, Mozilla, USA, Nathan Egge, Mozilla, USA, Jean-Marc Valin, Amazon, USA, Thomas Davies, Cisco, UK, Steinar Midtskogen, Cisco, UK, Andrey Norkin, Netflix, USA, Peter de Rivaz, Argon Design, UK, Zoe Liu, Visionular, USA
 
Suggested Citation
Yue Chen, Debargha Mukherjee, Jingning Han, Adrian Grange, Yaowu Xu, Sarah Parker, Cheng Chen, Hui Su, Urvang Joshi, Ching-Han Chiang, Yunqing Wang, Paul Wilkins, Jim Bankoski, Luc Trudeau, Nathan Egge, Jean-Marc Valin, Thomas Davies, Steinar Midtskogen, Andrey Norkin, Peter de Rivaz and Zoe Liu (2020), "An Overview of Coding Tools in AV1: the First Video Codec from the Alliance for Open Media", APSIPA Transactions on Signal and Information Processing: Vol. 9: No. 1, e6. http://dx.doi.org/10.1017/ATSIP.2020.2

Publication Date: 24 Feb 2020
© 2020 Yue Chen, Debargha Mukherjee, Jingning Han, Adrian Grange, Yaowu Xu, Sarah Parker, Cheng Chen, Hui Su, Urvang Joshi, Ching-Han Chiang, Yunqing Wang, Paul Wilkins, Jim Bankoski, Luc Trudeau, Nathan Egge, Jean-Marc Valin, Thomas Davies, Steinar Midtskogen, Andrey Norkin, Peter de Rivaz and Zoe Liu
 
Subjects
 
Keywords
Video compression, Open-source video coding, AV1, Alliance for Open Media
 

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Open Access

This is published under the terms of the Creative Commons Attribution licence.

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In this article:
I. INTRODUCTION 
II. AV1 CODING TECHNIQUES 
III. PERFORMANCE EVALUATION 
IV. CONCLUSION 

Abstract

In 2018, the Alliance for Open Media (AOMedia) finalized its first video compression format AV1, which is jointly developed by the industry consortium of leading video technology companies. The main goal of AV1 is to provide an open source and royalty-free video coding format that substantially outperforms state-of-the-art codecs available on the market in compression efficiency while remaining practical decoding complexity as well as being optimized for hardware feasibility and scalability on modern devices. To give detailed insights into how the targeted performance and feasibility is realized, this paper provides a technical overview of key coding techniques in AV1. Besides, the coding performance gains are validated by video compression tests performed with the libaom AV1 encoder against the libvpx VP9 encoder. Preliminary comparison with two leading HEVC encoders, x265 and HM, and the reference software of VVC is also conducted on AOM's common test set and an open 4k set.

DOI:10.1017/ATSIP.2020.2