文章基本信息

标题：Design of High-Speed CAVLC Decoder Architecture for H.264/AVC
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作者：Oh, Myung-Seok ; Lee, Won-Jae ; Jung, Yun-Ho 等
期刊名称：ETRI Journal
印刷版ISSN：1225-6463
电子版ISSN：2233-7326
出版年度：2008
卷号：30
期号：1
页码：167-169
DOI：10.4218/etrij.08.0207.0208
语种：English
出版社：Electronics and Telecommunications Research Institute
摘要：In this paper, we propose hardware architecture for a high-speed context-adaptive variable length coding (CAVLC) decoder in H.264. In the CAVLC decoder, the codeword length of the current decoding block is used to determine the next input bitstreams (valid bits). Since the computation of valid bits increases the total processing time of CAVLC, we propose two techniques to reduce processing time: one is to reduce the number of decoding steps by introducing a lookup table, and the other is to reduce cycles for calculating the valid bits. The proposed CAVLC decoder can decode 30 fps video in real time at a 30.8 MHz clock.
关键词：CAVLC;VLC;entropy coding;H.264/AVC