Accelerating CABAC encoding for multi-standard media with configurability

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.