A Reconfigurable Multi-Transform VLSI Architecture Supporting Video Codec Design

This brief presents a reconfigurable VLSI architecture which is designed for multi-transform codec in several video coding standards of MPEG-2/4, VC-1, H.264/AVC and AVS. The reconfigurable multiple constant multiplication algorithm with two fusing strategies is provided to generate constant multipliers in the matrix calculation blocks. Additionally, adder-sharing strategy is adopted in the unified preprocessing/postprocessing block to save circuit areas. The proposed architecture can support different standards through static reconfiguration and forward/inverse transform functions through dynamic reconfiguration. It is suitable for the real-time processing of 1080P HD video codec with six video standards transforms.