Video decompressing system with efficient memory access capability

摘要

A video decompressing system with high-efficiency memory access capability has a memory device for storing reference frames which are read out for performing motion compensation in decompressing process. The reference frame has its pixels arranged as a plurality of horizontal lines for being stored in the memory device. If the pixels of one horizontal line can not be integrally stored in one row of the memory device, the horizontal line is broken into at least two lines for being stored in the rows of the memory device. At the end portion of the row where the horizontal line is broken, a tail section is allocated for duplicating and storing pixels that are the same as those of a macroblock at a starting position of the next row, so as to avoid the page break problem.