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

In this brief, the fast 1D 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 1D integer transforms are hardware shared, and they can be applied to the 2D transform scheme. The hardware costs of the proposed fast 1D and 2D 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.