Design of an MPEG-2 transport demultiplexor core

A new high-performance MPEG-2 transport demultiplexor hardware architecture is presented which minimizes the support required from a host processor for common tasks such as crock recovery and table section filtering, yet provides an interface for a processor to modify the handling of the incoming transport stream. A common on-chip SRAM is used for temporary storage of transport packets as they are processed, as well as for control and status registers, allowing space for efficient storage and reducing silicon size. Memory storage is further reduced by delivering data directly to the audio and video decoder rate buffers and to system memory as part of a total, integrated MPEG subsystem design. The architecture is implemented as part of the IBM Blue Logic(TM) core library.