A Novel Low-Cost High-Throughput CAVLC Decoder for H.264/AVC

作者：Wang Kyu Yeul^*; Kim Byung Soo; Lee Sang Seol; Kim Dong Sun; Chung Duck Jin

来源：IEICE Transactions on Information and Systems, 2011, E94D(4): 895-904.

DOI：10.1587/transinf.E94.D.895

• CAVLC decoder
• multi-symbol decodor
• VLSI
• H.264/AVC

This paper presents a novel low-cost high-performance CAVLC decoder for H.264/AVC. The proposed CAVLC decoder generates the length of coeff_token and total_zeros symbols with simple arithmetic operation. So, it can be implemented with reduced look-up table. And we propose multi-symbol run_before decoder which has enhanced throughput. It can decode more than 2.5 symbols in a cycle if there are run_before symbols to be decoded. The hardware cost is about 12K gates when synthesized at 125 MHz.

• 出版日期2011-4