An efficient Context Adaptive Variable Length coding architecture for H. 264/AVC video encoders

Abstract

Abstract—In this paper, we present an efficient hardware implementation of a Context Adaptive Variable Length Coding (CAVLC) module for an H. 264/AVC video encoder. To improve timing performance, a three-stage pipeline architecture is proposed including: input data statistical analysis, encoding and packing. The context information and coding tables are stored in memory elements. To minimize the hardware implementation overhead and increase the system performance, in some subencoders, the codewords are calculated on ...