In this paper, we propose a 1 Gbin/s context-based adaptive binary arithmetic coding (CABAC) encoder architecture for beyond-HDTV applications. CABAC is a crucial part in H.264/AVC main and high profiles that provides a great compression ratio at the expense of high computational complexity. And it is also considered as a very efficient coding method in the developing high-efficiency video coding (HEVC) standard. We try to accelerate the CABAC encoder to provide a high throughput to meet the requirement of beyond-HDTV video. Our design includes the binarization, context modeling and binary arithmetic encoding (BAE) parts and achieves a throughput of 4 bins per cycle. The synthesis result using SMIC 90nm shows that the logic gate count is 36.2K in all and the encoder engine can work at a maximum frequency of 279MHz. Thus the overall throughput can reach over 1 Gbin/s. In our design, the 460 contexts are assigned to 6 SRAMs to attain efficient context modeling. And the binarization part is also optimized to enhance the throughput with low hardware cost.
|ホスト出版物のタイトル||European Signal Processing Conference|
|出版ステータス||Published - 2011|
|イベント||19th European Signal Processing Conference, EUSIPCO 2011 - Barcelona, Spain|
継続期間: 2011 8 29 → 2011 9 2
|Other||19th European Signal Processing Conference, EUSIPCO 2011|
|Period||11/8/29 → 11/9/2|
ASJC Scopus subject areas