Video compression method, device and system and medium

Abstract

The invention discloses a video compression method, device and system and a computer readable storage medium, and the method comprises the steps: receiving the image data of a current frame image, and obtaining the image data of a previous frame image from a DDR; when the current state of the video compression controller is an on state, sending image data of a previous frame of image to the video compression controller for compression processing; sending the image data of the current frame image to the DDR for storage; judging whether the current frame image is the same as the previous frame image or not according to the image data of the current frame image and the image data of the previous frame image, and if yes, changing the state of the video compression controller into a closed state; and if not, changing the state of the video compression controller into an open state, so as to compress the image data acquired from the DDR next time. In the using process, the data compression amount can be reduced, the network bandwidth and the video transmission delay are reduced, and the overall power consumption is reduced.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to a video compression method, device, system and computer-readable storage medium. Background technique [0002] KVM over IP is also called IP KVM, that is, a KVM switch with remote management function. KVM is the abbreviation of keyboard, video, mouse (Keyboard, Video, Mouse). That is, a set of keyboards, monitors, and mice used to control multiple computers. Usually, due to the attenuation of the signal from the computer to the peripheral equipment, the distance expansion space between the analog KVM switch and the controlled computer is very limited, but IP KVM is different. As a digital KVM switch, it can realize remote control of multiple computers server. [0003] IP KVM converts analog information such as video and control of the connected management objects into digital signals, compresses them into an IP packet, and transmits it through the network. After the ...

AI Technical Summary

Problems solved by technology

[0005] For computer display, the frequency of image changes is not so high, and the image may not change after several seconds, while the video compression module of the prior art will always read image data in DDR for compression according to the frame rate of the host video , and the compressed data will be continuously transmitted to the remote terminal through the Ethernet, which will increase a large network bandwidth, resulting in increased delay in video transmission, and the continuous operation of the video compression module will also increase the total chip power consumption

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