High-throughput H.264/AVC high-profile CABAC decoder for HDTV applications

Yao Chang Yang; Jiun-In Guo

doi:10.1109/TCSVT.2009.2020340

High-throughput H.264/AVC high-profile CABAC decoder for HDTV applications

Yao Chang Yang^*, Jiun-In Guo

^*Corresponding author for this work

Institute of Electronics

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

In this letter we propose a high-throughput VLSI architecture design for H.264 high-profile context-based adaptive binary arithmatic coding (HP CABAC) decoding for HDTV applications. To speed up the inherent sequential CABAC decoding, we eliminate the bottleneck by proposing a look-ahead decision parsing technique on the grouped context table with cache registers, which reduces 62% of cycle count on average as compared with the original CABAC decoding. In addition, the proposed design supports the macroblock adaptive frame field coding tools in H.264 main profile coding and 8 × 8 transform in H.264 high-profile coding. It achieves the real-time processing for H.264 CABAC decoding up to L4.1@30 frames/s with maximum 60 Mbits/s when operating at 105 MHz.

Original language	English
Article number	4812002
Pages (from-to)	1395-1399
Number of pages	5
Journal	IEEE Transactions on Circuits and Systems for Video Technology
Volume	19
Issue number	9
DOIs	https://doi.org/10.1109/TCSVT.2009.2020340
State	Published - 1 Sep 2009

Keywords

Context-based adaptive binary arithmatic coding (CABAC)
H.264
HDTV
Video coding

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10.1109/TCSVT.2009.2020340

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title = "High-throughput H.264/AVC high-profile CABAC decoder for HDTV applications",

abstract = "In this letter we propose a high-throughput VLSI architecture design for H.264 high-profile context-based adaptive binary arithmatic coding (HP CABAC) decoding for HDTV applications. To speed up the inherent sequential CABAC decoding, we eliminate the bottleneck by proposing a look-ahead decision parsing technique on the grouped context table with cache registers, which reduces 62% of cycle count on average as compared with the original CABAC decoding. In addition, the proposed design supports the macroblock adaptive frame field coding tools in H.264 main profile coding and 8 × 8 transform in H.264 high-profile coding. It achieves the real-time processing for H.264 CABAC decoding up to L4.1@30 frames/s with maximum 60 Mbits/s when operating at 105 MHz.",

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