Combined CAVLC decoder, inverse quantizer, and transform kernel in compact H.264/AVC decoder
IEEE Transactions on Circuits and Systems for Video Technology
VLD design for AVS and H.264 dual standards video decoder
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
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In H.264/AVC, the Context-based Adaptive Variable Length Coding (CAVLC) is used for lossless compression. Direct table-lookup implementation requires higher cost because it employs a larger memory to produce the encoded results. A carefully reduced table is constructed and used for encoding in the design. With the helps of symbol mapping and codeword generating modules, our encoder can generate the CAVLC bitstream accurately. Compared with those previous designs, our method reduces up to 81% of memory size for storing those VLC tables used in H.264/AVC. Thus, our design is a good candidate for low-cost CAVLC.