Fast Algorithm and Low-Cost Hardware-Sharing Design of Multiple Integer Transforms for VC-1

In this brief, the fast 1-D multiple integer transforms of Windows Media Video 9 (WMV-9/VC-1) are proposed by matrix decompositions, additions, and row/column permutations. Then, the proposed fast 1-D integer transforms are hardware shared, and they can be applied to the 2-D transform scheme. The hardware costs of the proposed fast 1-D and 2-D integer transform designs are smaller than those of the previous individual designs without shares. With the hardware share, the proposed architecture is suitable for the low-cost implementation of the VC-1 codec.