通过VHDL实现H.264算法中的半像素插值模块。该模块儿可在30个周期内完成一个4x4块的横纵斜插值。-H.264 algorithm by VHDL implementation of the half pixel interpolation module. The module can be in 30 children complete a cycle of vertical and horizontal 4x4 block Xiecha value.