The BCM7021 Advanced High Definition, Video/Graphics Subsystem supports the requirements of television and set-top box systems that require high-definition or standard definition decoding of MPEG-2 streams with simultaneous high-definition and standard definition outputs. For systems that require only standard-definition output, a reduced-memory mode substantially reduces the amount of memory needed for the video decompressions process. The video decoder also supports multiple stream, standard-definition decoding, providing both tiled video and PIP capability.