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QEMU virtual machine image output window self-adaptive adjustment method

A self-adaptive adjustment and image output technology, applied in the field of computer science, can solve the problems of tearing screen, low frame rate, stuttering, etc., to reduce the amount of data, speed up the scanning process, and ensure the smoothness of the effect

Inactive Publication Date: 2022-02-25
KYLIN CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, in view of the problems existing in the prior art, it is necessary to provide a method for self-adjustment of the image output window of the QEMU virtual machine to avoid tearing during image output and screen lag, freeze, low frame rate or even frame skipping during video playback. serious problem

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  • QEMU virtual machine image output window self-adaptive adjustment method

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Embodiment Construction

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0027] First, the technical terms mentioned in the present invention are explained:

[0028] SPICE: SPICE (Simple Protocol for Independent Computing Environment, Simple Protocol for Independent Computing Environment) protocol is the latest open source cloud desktop transmission protocol based on KVM virtual machine. It is mainly used in RedHat desktop virtualiz...

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Abstract

The invention relates to the technical field of computer science, in particular to a QEMU virtual machine image output window self-adaptive adjustment method. The method comprises the following steps: dividing a whole frame picture of a current frame into a plurality of image blocks of a same size, judging whether the image blocks are changed relative to image blocks at corresponding positions of a previous frame picture, and if the image blocks are changed, marking the changed image blocks as difference image blocks; marking difference image blocks of each frame of pictures, and if a coverage rate of the difference image blocks exceeds a preset value when a certain position of an image output window switches continuous multiple frames of pictures, marking the position as a video playing area; if pictures outside the video playing area have difference image blocks, switching the image output window into a full-screen video mode. According to the method, the tearing phenomenon of an image output window of a QEMU virtual machine during image output and the phenomena of picture delay, lag, low frame rate, serious frame skipping, and the like during video playing, can be effectively avoided.

Description

technical field [0001] The invention relates to the technical field of computer science, in particular to a QEMU virtual machine image output window adaptive adjustment method. Background technique [0002] Cloud desktop is a typical application in the era of virtualization and cloud computing. By building server clusters and creating multiple virtual machines in the cloud data center, users can remotely connect to virtual machines through cloud terminal devices, and then cloud desktops can be provided to users. Use experience consistent with local PC. This technology allows administrators to only need the cloud data center for centralized system maintenance, which greatly reduces the workload of administrators, and also makes users no longer need to worry about data loss caused by local PC failures. It is increasingly favored by enterprises and individuals. favor. [0003] In the prior art, for the cloud desktop of the image output window of the QEMU virtual machine, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/451G06F9/455
CPCG06F9/452G06F9/45558
Inventor 李唯实谢明孙立明张铎
Owner KYLIN CORP
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