Integrated Architecture for the Unified Processing of Visual Media
The present invention is directed toward a system on chip architecture having scalable, distributed processing and memory capabilities through a plurality of processing layers. One application of the present invention is in a novel media processing device, designed to enable the processing and communication of video and graphics using a single integrated processing chip for all visual media.
1 . A media processor for the processing of media based upon instructions, comprising:
a plurality of processing layers wherein each processing layer has at least one processing unit, at least one program memory, and at least one data memory, each of said processing unit, program memory, and data memory being in communication with one another;
at least one processing unit in at least one of said processing layers designed to perform motion estimation functions on received data;
at least one processing unit in at least one of said processing layers designed to perform to perform encoding or decoding functions on received data; and
a task scheduler capable of receiving a plurality of tasks from a source and distributing said tasks to the processing layers.
2 . The media processor of claim 1 further comprising a direct memory access controller capable of handling data transfers, each of said transfers having a size and a direction, from at least one data memory having an address and a plurality of external memory units, each having an address.
3 . The media processor of claim 2 wherein said transfers between at least one data memory and at least one external memory occur by utilizing the address of the data memory, the address of the external memory, the size of the transfer, and the direction of the transfer.
4 . The media processor of claim 1 wherein the task scheduler is in communication with an external memory.
5 . The media processor of claim 1 further comprising an interface for the receipt and transmission of data and control signals.
6 . The media processor of claim 5 wherein the interface comprises an Ethernet compatible interface.
7 . The media processor of claim 5 wherein the interface comprises a TCP/IP compatible interface.
8 . The media processor of claim 1 wherein at least one processing layer includes a processing unit designed to perform motion estimation functions on received data and a processing unit designed to perform encoding or decoding functions on received data and wherein said motion estimation and encoding or decoding functions are performed in a pipelined manner.