Modularized multifunctional embedded audio/video encoding/decoding device

Abstract

The invention relates to a modular multi-function embedded audio and video coding and decoding device, and belongs to the technical field of high-speed data processing devices. The modular multi-function embedded audio and video coding and decoding device consists of a bus interface module (2), a core system module (1) respectively interconnected with the bus interface module (2) by a line interface and a peripheral system module. Compared with the existing devices, the device has the advantages of reusing the hardware module, effectively shortening the development period, promoting product upgrade and benefiting fault isolation and diagnosis. The modular multi-function embedded audio and video coding and decoding device can be widely applied to digital monitoring systems, DVB / IP set top boxes, KTV set top boxes and multimedia information issuing terminals. The reusability of the same hardware module can be used for rapidly customizing new products.

Description

Technical field: [0001] The invention relates to a modular multifunctional embedded audio and video codec device, which belongs to the technical field of high-speed data processing devices. Background technique: [0002] With the maturity of single-chip audio and video decoding technology and the advent of general-purpose media processors with CPU+DSP multi-core structure, embedded audio and video codec technology has begun to be widely used in radio and television, security monitoring, network media, personal entertainment, and advertising. The field has been widely used, and the industry has launched high-definition codec equipment, multi-channel encoding devices, digital monitoring systems, DVB / IP set-top boxes, KTV set-top boxes, multimedia information publishing terminals and new mobile TV products. [0003] In the face of huge and diverse application requirements, rapid product customization has become the key to quickly occupying the market. At present, the hardware ...

AI Technical Summary

Problems solved by technology

Although this "All in one" design is closer to the evaluation board, the changes are small, which is conducive to improving the success rate of the first board and effectively shortening the launch cycle of the first product, but it also brings many problems: First, the hardware Reuse problem, that is, one design can only meet one requirement and correspond to one product, and it is difficult to quickly adapt to different target product requirements

Since the main frequency of the media processor is relatively high, making changes on the high-speed circuit board will lead to changes in the original electromagnetic and heat transfer environment

If the requirements change, such as adding or subtracting a certain interface, it needs to be overthrown and restarted. The whole board design is difficult to reuse

The second is the problem of rapid customization. Once the hardware cannot be reused, in order to improve reliability, it is necessary to go through the whole process of complete machine prototype, complete machine test, complete machine improvement, and small batch, test, and mass production, resulting in new products. The development cycle is too long

The third is the problem of upgrade and expansion. If you want to add an interface, replace a circuit, or upgrade and expand the media processor and memory of the current product, the existing "All in one" design will not be realized, and you can only replace the whole machine , it is difficult to carry out a comprehensive upgrade

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