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Proceedings Paper

High-throughput architecture for H.264/AVC CABAC encoding and decoding system
Author(s): Yuan-Teng Chang
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Paper Abstract

This paper presents a high-throughput and low-cost context adaptive binary arithmetic coding (CABAC) codec for H.264/AVC High and Main Profile. We analyze the similarities between CABAC encoding and decoding algorithms and propose an efficient pipeline architecture to accelerate their operations. A binary arithmetic unit is designed elaborately which integrates the three engines regular, bypass and terminate for the encoder and decoder by taking advantage of hardware sharing. The proposed CABAC codec is already integrated in a H.264 hardware core and is able to achieve real-time decoding for H.264/AVC High Profile HD level 4.1. The implemented design can operate at 265MHz with 39.2k gate count under 0.18μm silicon technology.

Paper Details

Date Published: 13 September 2008
PDF: 9 pages
Proc. SPIE 7073, Applications of Digital Image Processing XXXI, 70730G (13 September 2008); doi: 10.1117/12.797359
Show Author Affiliations
Yuan-Teng Chang, Industrial Technology Research Institute (Taiwan)

Published in SPIE Proceedings Vol. 7073:
Applications of Digital Image Processing XXXI
Andrew G. Tescher, Editor(s)

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