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A method and system for improving system bus efficiency in video decoding and display

A system bus and video display technology, applied in memory systems, digital video signal modification, instruments, etc., can solve problems affecting system BUS efficiency and achieve the effect of improving overall performance

Active Publication Date: 2020-02-21
HUNAN GOKE MICROELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, in a 1080P decoding display system, for the YUV storage method that is beneficial to video encoding and decoding, the display module needs to send 1920 / 8=240 requests to read a line of YUV, and the length of each request is only 8 pixels, which seriously affects the system BUS The efficiency of the system is the main problem of the current system

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  • A method and system for improving system bus efficiency in video decoding and display
  • A method and system for improving system bus efficiency in video decoding and display

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Embodiment Construction

[0028] Such as figure 2 , the characteristics and process of the invention are as follows:

[0029] 1) System BOOT starts a series of processes such as system reset, DDR initialization, etc.

[0030] 2) Start the video source module to get the video data source to be displayed.

[0031] 3) The decoder reads the video data source to decode, and then transmits the decoded YUV data for display to the DDR controller through the 203 system bus, and then writes it to the DDR through the DDR PHY, where the DDR controller confirms that it is the actual address Operations do not require request separation.

[0032] 4) The system control module controls the work of the video display module, and the video display module combines multiple requests for one line of data according to the maximum length of the system bus and sends them to the system bus through the request synthesis module.

[0033] 5) The system bus receives the request from the video display module and passes it to the ...

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Abstract

The present invention disclosed a method and system that improves the efficiency of the system bus in the video decoding display. In the video decoding display system, the method of adding request mergers and separation modules to reduce the number of requests for each line of video display modules, which greatly improves the system.efficiency.The present invention solves the problem that the YUV efficiency storage scheme in the decoding system has brought more requests to the display system and is easy to interrupt; improves the overall performance of the system bus.

Description

technical field [0001] The invention relates to a method and system for improving system bus efficiency in video decoding and displaying. Background technique [0002] With the gradual popularization of many digital products such as digital TV, Internet high-definition video, and high-definition digital TV set-top boxes, the standardization of video codec technology is making the technology in the field commercialized. For video codecs, standards such as ITU-T H.264, H265 and AVS / AVS+ / AVS2 with independent intellectual property rights are being widely used. The playback of video data requires high real-time performance, so that high-definition and ultra-high-definition real-time decoding requires more and more bandwidth requirements, and the efficiency and performance of the system bus is increasingly becoming a bottleneck. [0003] In order to improve the efficiency of compressing pixel information, the image will be divided into smaller segments during the process of proc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/1081G06F13/40H04N19/42H04N19/44
CPCG06F12/1054G06F13/4068H04N19/42H04N19/44
Inventor 赵修齐袁涛姜黎李天望
Owner HUNAN GOKE MICROELECTRONICS