Video data processing method, system and device and computer readable storage medium

Abstract

The invention discloses a video data processing method, system and device and a computer readable storage medium, and relates to the field of video transmission, and the video data processing method comprises the steps: determining a storage space where to-be-compressed video data corresponding to a reading signal is located when the reading signal is received; if the storage space is a DDR storage space, reading video data of a plurality of Blocks from the DDR storage space, sending to-be-compressed video data in the video data to a compression module for compression processing, and storing the video data except the to-be-compressed video data into an RAM storage space; and if the storage space is the RAM storage space, reading the to-be-compressed video data from the RAM storage space, and sending the to-be-compressed video data to a compression module for compression processing. According to the method and the device, the memory use efficiency can be improved, the occupation of the DDR bus bandwidth by the video compression function is reduced, and the purpose of improving the system performance is achieved.

Description

technical field [0001] The present application relates to the field of video transmission, in particular to a video data processing method, system, device and computer-readable storage medium. Background technique [0002] In the traditional substrate management control chip, the processing flow of the video compression system refers to figure 1 As shown, the video graphics array module (VGA, Video Graphics Array) converts the initial video data transmitted from the host to RGB format video data, and the conversion module performs color space conversion on the RGB format video data to obtain YUV format video data , write the video data in YUV format to the off-chip DDR (Double Data Rate, double rate) storage space, and the compression module reads the video data in YUV format from the off-chip DDR in the order of Blocks , perform compression processing, and write the compressed video data to the off-chip DDR, and then the network driver running on the CPU (Central Processin...

AI Technical Summary

Problems solved by technology

In the traditional solution, YUV data must first be written to the off-chip DDR, and read back from the off-chip DDR to the on-chip process many times, so the occupation rate of the DDR bus is very high, and when reading the DDR, it is always a short packet. Reading, the use of DDR is very inefficient, which seriously affects the access of other applications in the system to DDR, thereby reducing the performance of the entire system

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