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A High-Throughput Hardware Architecture for AV1 Non-Directional Intra Modes.
- Source :
-
IEEE Transactions on Circuits & Systems. Part I: Regular Papers . May2020, Vol. 67 Issue 5, p1481-1494. 14p. - Publication Year :
- 2020
-
Abstract
- The AOMedia Video 1 (AV1), developed by the Alliance for Open Media (AOM) industry consortium and released in 2018, is an open-source and royalty-free video coding format. The goal of AV1 is to deliver substantial compression gains over state-of-the-art codecs such as VP9 and HEVC, while keeping a practical decoding complexity, hardware feasibility and an open and free status. This paper presents a high-throughput hardware architecture for ten non-directional AV1 intra prediction modes: DC, Paeth, Smooth, Smooth Vertical, Smooth Horizontal and Recursive-filtering-based modes 0 to 4. The proposed design supports all 19 block sizes specified by AV1 and, in the worst-case scenario, is able to process every single combination of these blocks according to the 10-way partition tree, with a throughput of UHD 4K videos at up to 30 frames per second. When synthesized to the TSMC 40nm cell library targeting a frequency of 648MHz, the proposed design used 128.5K gates and showed a power dissipation and energy consumption per predicted sample of 65.5mW and 0.176pJ/sample, respectively. No other works were found in the literature describing hardware designs for AV1 intra prediction encoder. [ABSTRACT FROM AUTHOR]
- Subjects :
- *VIDEO coding
*ENERGY dissipation
*HARDWARE
*ENERGY consumption
*FORECASTING
*CODECS
Subjects
Details
- Language :
- English
- ISSN :
- 15498328
- Volume :
- 67
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Circuits & Systems. Part I: Regular Papers
- Publication Type :
- Periodical
- Accession number :
- 143000713
- Full Text :
- https://doi.org/10.1109/TCSI.2020.2973031