TEMPORAL AND SPATIAL VIDEO BLOCK REORDERING IN DECODER TO IMPROVE CACHE HITS

摘要

PROBLEM TO BE SOLVED: To provide techniques in which the decoding order of video blocks is modified relative to the display order of the video blocks.SOLUTION: The decoding order may be modified temporally such that video blocks of different video frames (or other coded units) are decoded in an alternating manner. The decoding order of video blocks alternates between video blocks of two or more different frames. Furthermore, the decoding order is modified spatially within a given video block such that the video blocks are decoded in order that does not correspond to the raster scan order of the video blocks. The use of memory is improved by improving the likelihood of cache hits and thereby reducing the number of memory loads from an external memory to an internal cache associated with the decoder.