Title :
Architecture of high-throughput context adaptive variable length coding decoder in AVC/H.264
Author :
Gwo Giun Lee ; Shu-Ming Xu ; Chun-Fu Chen ; Ching-Jui Hsiao
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
Abstract :
In this paper, a High-throughput Context Adaptive Variable Length Coding decoder which is capable for supporting AVC/H.264 HP@level 4.2 has been presented. To increase throughput, multi-symbol decoders for “LEVEL” and “RunBefore” and architecture of fast zero insertion are presented to reduce processing cycles to reach high-throughput rate. Finally, the experimental results show that the throughput of presented Context Adaptive Variable Length Coding decoder achieves the level limitation of level 4.2 in AVC/H.264 and the synthesis result shows that the gate count is about 17.2K gates at a clock constrain of 108MHz.
Keywords :
adaptive decoding; video coding; AVC/H.264; LEVEL; RunBefore; frequency 108 MHz; high-throughput context adaptive variable length coding decoder; multisymbol decoders; Clocks; Computer architecture; Context; Decoding; Logic gates; Throughput; Video coding;
Conference_Titel :
Signal & Information Processing Association Annual Summit and Conference (APSIPA ASC), 2012 Asia-Pacific
Conference_Location :
Hollywood, CA
Print_ISBN :
978-1-4673-4863-8