Accelerating CABAC encoding for multi-standard media with configurability

Authors:
Oskar Flordal;Di Wu;Dake Liu
Affiliations:
Axis Communications AB, Lund, Sweden and Department of Electrical Engineering, Linköping University, Linköping, Sweden;Department of Electrical Engineering, Linköping University, Linköping, Sweden;Department of Electrical Engineering, Linköping University, Linköping, Sweden
Venue:
IPDPS'06 Proceedings of the 20th international conference on Parallel and distributed processing
Year:
2006

Citing 4
Cited 4

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Abstract

This paper presents the study of how to accelerate CABAC encoding for emerging heterogeneous multimedia applications. The latest image and video compression standards such as JPEG2000 and H.264 both have adopted Context Adaptive Binary Arithmetic Coding to achieve performance enhancement. However, CABAC requires high computing power. After investigating computational complexity of CABAC coding, firstly, instruction level acceleration is elaborated. Secondly, a configurable accelerator for CABAC encoding in multiple standards is proposed. Benchmarking performance and implementation cost is also addressed.