Circuit structure integrating graphic processor and video codec

Abstract

The invention discloses a circuit structure integrating a graphic processor and a video codec. The circuit structure comprise the graphic processor, wherein the graphic processor comprises a stream processor. The circuit structure is characterized in that the stream processor comprises a graphic processing unit, a video processing unit, a slave controller and a sharing unit. The circuit structure can effectively solve the problems of poor reliability, long data transmission delay, high taping-out cost of chips, low utilization rate of on chip resources and the like due to separate design of a graphic processing chip and a video processing chip in an integrated circuit, the problems in the conventional method of separately designing the graphic processing chip and the video processing chip are solved well, the reliability of the circuit design is improved, the data transmission delay is reduced, the tapping-out cost is lowered, and the utilization rate of the on chip resources is improved to a great extent.

Description

technical field [0001] The invention relates to the technical field of integrated circuit chip design, in particular to a circuit structure in which a graphics processor and a video codec are integrated. Background technique [0002] As consumers have higher and higher requirements for electronic products, the upgrading of electronic products is getting faster and faster, and the requirements for image and video processing are also getting higher and higher, and the sharp reduction in the price of electronic products has also brought new challenges Therefore, the design challenges of graphics and video chips are also increasing: [0003] 1) Improve the reusability rate, shorten the chip design cycle, and speed up the time to market, thereby improving product competitiveness. [0004] 2) Improve the reuse of on-chip resources and improve the utilization of on-chip resources, thereby reducing the chip area and reducing the cost of tape-out. [0005] 3) Image and video have h...

AI Technical Summary

Problems solved by technology

[0010] 1) Insufficient reliability

[0011] Video processing and graphics processors need to be connected through a board-level bus. The board-level bus is prone to external electromagnetic interference, resulting in data transmission errors

[0012] 2) Large transmission delay

[0013] The board-level bus line is relatively long, and the parasitic parameters on it have a great influence, resulting in a large delay in data transmission, which causes a big problem for graphics and video data that need to be processed in real time

[0014] 3) The circuit design is complex

[0015] The two chips need to be coordinated with each other, and each chip needs to maintain communication with the main control chip. There are many interfaces and complicated connections, which increases the complexity of circuit design.

[0016] 4) On-chip resource utilization is low

[0017] When there is a large amount of video data to be processed and no graphics data to be processed, the stream processor unit of the graphics processor will be idle to cause a waste of resources; similarly, when there is no video data to be processed but a large amount of graphics data to be processed, A large number of computing units of the video processor are in an idle state. Therefore, the traditional design method causes low utilization of on-chip resources, resulting in a waste of many computing resources.

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