Video encoder/decoder, method and computer program product that process tiles of video data

摘要

A video decoder, method and computer program product allow for processing of a video frame encoded in rectangular tiles. An interface receives a bit stream in tile order within a video frame that was encoded into rectangular tiles. A processor decodes the video frame while respecting dependency breaks at tile boundaries; the rectangular tiles include an integer number of two-dimensional blocks of pixels. A tile shape is defined by N×M two-dimensional blocks of pixels, respective values of N and M need not be identical for each of the rectangular tiles, and information regarding tile shape for each tile being conveyed from an encoder to the decoder. The decoder determines N and M for each tile from the information, and tiles have dependency breaks therebetween.