Device and method for implementation of AVS video decoding by using SOPC

Abstract

The invention discloses a device and a method for the implementation of AVS video decoding by using SOPC, belonging to the field of video decoding. The device comprises an Nios II microprocessor module and other modules. The Nios II microprocessor module is connected with a DMA controller module and other modules; a SDRAM controller module is connected with the DMA controller module and other modules as well as SDRAM; a video output controller module is connected with the SDRAM controller module and a video output module; the DMA controller module is connected with an AVS co-processing module. The Nios II microprocessor module executes software decoding control, the AVS co-processing module executes AVS hardware decoding, other modules executes auxiliary decoding, and all the modules are hung on a bus and packaged in FPGA for data interaction. The device is reasonable in software / hardware division, capable of varying software decoding procedures by modularized design and of supporting the design with other standards by hanging other co-processor cores, and has high expandability, universality and flexibility.

Description

Technical field

[0001] The invention relates to a device and method for realizing AVS video decoding by using SOPC, and belongs to the technical field of video codec. Background technique

[0002] The AVS standard is the abbreviation of the "Advanced Audio and Video Coding for Information Technology" series of standards, which includes four main technical standards of system, video, audio, and digital rights management, as well as supporting standards such as conformance testing. It is a motion image compression standard independently proposed by my country, which achieves technical performance comparable to international standards at a relatively low complexity, but does not use a large number of complex patents behind international standards. Its characteristic core technologies include: 8×8 integer transformation, quantization, intra-frame prediction, 1 / 4 precision pixel interpolation, special inter-frame prediction motion compensation, two-dimensional entropy coding, deb...

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