AVS video decoder for software and hardware combined decoding

A video decoder and entropy decoding technology, applied in the field of AVS video decoder structure, can solve problems such as real-time decoding of video that cannot meet standard definition or larger image size, poor compatibility, portability and scalability, and high processor power consumption. , to achieve the effect of easy IP and integration, great flexibility and high performance
CN101453640AInactive Publication Date: 2009-06-10INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF MICROELECTRONICS CHINESE ACAD OF SCI
Publication Date
2009-06-10
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention relates to the field of multimedia video, in particular to an AVS video decoder (information technology-advanced coding of audio and video) jointly decoded by software and hardware in video decoding. The video decoder comprises a DSP (digital signal processor) and a coprocessor which are adopted for joint decoding of software and hardware; DSP completes a software decoding part, completes analysis of an AVS protocol, generates various parameters required by decoding, and controls the decoding process of the coprocessor. Realization of VLSI (a very large scale integrated circuit) of a structure of the AVS video decoder jointly decoded by software and hardware can decode the AVS in a standard definition or a larger size image in real-time under a process of 0.18 micron; as DSP programming has large flexibility, the decoder structure is easy to be compatible with decoding of other standard video formats, meanwhile, the decoder has small chip area, power consumption and low cost.
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Description

technical field

[0001] The invention relates to the field of multimedia video, in particular to an AVS video decoder structure for joint decoding of software and hardware. Background technique

[0002] AVS (Audio Video Coding Standard) standard is the abbreviation of "Information Technology Advanced Audio and Video Coding" series standards. It has independent intellectual property rights and is suitable for applications such as digital TV broadcasting and interactive storage media services. It has high compression rate and moderate complexity. Features such as low cost. The characteristic core technologies in AVS video include: 8x8 integer transformation, quantization, intra prediction, 1 / 4 precision pixel interpolation, special inter prediction motion compensation, two-dimensional entropy coding, block effect loop filtering, etc. Technical performance equivalent to international standards is achieved at lower complexity.

[0003] AVS video decoder is a research hotspot. F...

Claims

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