Patent ID: 7620297

Claim:
A reproduction apparatus for reproducing a digital stream generated by multiplexing a video stream and a graphics stream, comprising: a video decoder operable to decode the video stream to generate a moving picture; a graphics decoder operable to decode the graphics stream to generate graphics, and a look up table unit, wherein: the graphics stream is a sequence of packets; the packets include a packet containing graphics data, a packet containing palette data and a packet containing control data; the graphic data represents a display content using a plurality of code values; the palette data indicates correspondence between each of the code values and luminance and color difference the control data has a reference value for a reference to palette data; upon reading control data in the graphics stream, the graphics decoder performs a control to display, based on the read control data, a graphic that has been received already; and the graphics decoder performs the display control by setting palette data read from the graphics stream into the look up table unit, and instructing the look up table unit to perform a color conversion based on the reference value contained in the control data.