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Data information cache management method and system based on pre-decoding analysis

A data information and cache management technology, applied in memory systems, electrical digital data processing, memory address/allocation/relocation, etc., can solve problems such as data access delay, and achieve the effect of improving performance, reducing occupation, and reducing the number of accesses

Active Publication Date: 2015-09-16
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, assuming that each row of synchronous DRAM stores 1024Byte data, and the size of media pixel data is 1Byte, then for frame data with a resolution of 1080p that contains 1920*1080 pixels, since each row of data in the frame is distributed in different rows, Therefore, multiple line feeds are required when reading intra-frame macroblocks, resulting in serious data access delays

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  • Data information cache management method and system based on pre-decoding analysis
  • Data information cache management method and system based on pre-decoding analysis
  • Data information cache management method and system based on pre-decoding analysis

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Embodiment Construction

[0028] In the following, the present invention will be further clarified with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. After reading the present invention, those skilled in the art will understand various aspects of the present invention. Modifications in equivalent forms fall within the scope defined by the appended claims of this application.

[0029] As shown in Figure 1, the data information cache structure based on pre-decoding analysis in the media processing reconfigurable system includes a streaming media processor module: used to parse the macro block in the code stream obtained from the external memory, and generate and process the macro block Corresponding macroblock layer data information, and output the macroblock layer data information to the data information prefetching FIFO module; data informa...

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Abstract

Disclosed is a pre-decoding analysis-based data information cache management system, comprising a streaming media processor module, a data information prefetch FIFO module, a data information cache unit, and a data information cache controller module. Also disclosed is a management method for the pre-decoding analysis-based data information cache management system. By utilizing as much as possible repeated data, the present invention reduces data transmission time and reduces data bandwidth usage and wrapping latency in an external memory, thus increasing the efficiency of data access of a large-scale coarse grain reconfigurable system, and increasing performance.

Description

Technical field [0001] The invention belongs to the field of embedded reconfigurable design, and specifically relates to a data information cache management method and system based on pre-decoding analysis, and more particularly to a data information cache management method based on pre-decoding analysis in a media processing reconfigurable system And system. Background technique [0002] A computing architecture that combines the flexibility of General Purpose Processors (GPP) and the high efficiency of Application Specific Integrated Circuits (ASIC). Reconfigurable computing architecture has been designed in embedded systems in recent years. This aspect has gained more and more attention, and its main application areas include multimedia processing, mobile communications, digital signal processing, data encryption and decryption, etc. As the performance requirements and computational complexity of media applications become higher and higher, the computing resources of coarse-g...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06G06F12/08G06F12/0862
CPCG06F12/0862
Inventor 曹鹏刘波蒋辉雁齐志杨锦江杨军时龙兴
Owner SOUTHEAST UNIV