Patent ID: 8301013
Filing Date: 2012-10-30
Classification: H04N

Abstract:
1. A playback apparatus that realizes stereoscopic playback comprising: a video decoder operable to obtain video frames by decoding a video stream; a plane memory that stores graphics subtitle data at a predetermined resolution defined by a number of horizontal and vertical pixels; an offset storage that stores an offset indicating a base number of pixels by which pixels coordinates of the graphics subtitle data are to be shifted in each of a right and left direction in order to realize stereoscopic playback; a shift engine operable to shift respective coordinates of the pixels making up the graphics subtitle data in the plane memory by the offset in a horizontal direction; and a compositor that composites graphics subtitle data in which the coordinates of the pixels have been shifted with the video frames, wherein a shift distance by which the shift engine shifts the pixel coordinates is based on a value obtained by multiplying the offset by a scaling factor when a video scale is modified during the stereoscopic playback.