Patent ID: 7034863

Claim:
Apparatus for providing a data structure for testing auxiliary information processing of a decoder, wherein the apparatus comprises: (a) means for providing a video stream comprising a coded representation of a picture; and (b) means for providing an auxiliary information stream comprising a coded representation of auxiliary information for the picture, wherein: the picture comprises (1) a first set of video content corresponding to the location of the auxiliary information when properly rendered and (2) a second set of video content corresponding to a location adjacent to the location of the properly rendered auxiliary information; when both sets of video content are rendered, the first set of video content has a different appearance from the second set of video content; the first set of video content is not visible when the auxiliary information is properly rendered; and at least part of the first set of video content is visible when an error occurs in rendering the auxiliary information, wherein the error is indicated by the difference in appearance between the first and second sets of video content.