High-throughput architecture for H.264/AVC CABAC encoding and decoding system

Yuan-Teng Chang

doi:10.1117/12.797359

13 September 2008 High-throughput architecture for H.264/AVC CABAC encoding and decoding system

Yuan-Teng Chang

Proceedings Volume 7073, Applications of Digital Image Processing XXXI; 70730G (2008) https://doi.org/10.1117/12.797359
Event: Optical Engineering + Applications, 2008, San Diego, California, United States

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.

Citation Download Citation

Yuan-Teng Chang "High-throughput architecture for H.264/AVC CABAC encoding and decoding system", Proc. SPIE 7073, Applications of Digital Image Processing XXXI, 70730G (13 September 2008); https://doi.org/10.1117/12.797359

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