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Improved SPICE video playing method based on feedback frame loss algorithm

A video playback and algorithm technology, applied in computing, instruments, electrical digital data processing, etc., can solve the problems of large amount of network transmission data and cannot directly use server hardware resources, so as to reduce the frame loss rate and reduce the amount of network transmission data , the effect of saving network bandwidth

Inactive Publication Date: 2019-07-12
SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

The traditional remote desktop transmission protocol works in a virtual machine, which cannot directly use server hardware resources, and the corresponding network transmission data volume is huge

Method used

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  • Improved SPICE video playing method based on feedback frame loss algorithm

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Embodiment

[0027] A method for improving SPICE video playback based on feedback frame loss algorithm, characterized in that, comprising:

[0028] The SPICE program provides a VDI interface through the QXL device, obtains graphics update instructions from the QXL command tree, and adds them to the graphics processing flow built by the SPICE server, and the SPICE server is also used for video stream detection, wherein the The QXL device is a graphics processing device of the QEMU virtual machine and is compatible with VGA. This solution can improve remote desktop performance and enhance graphics processing capabilities.

[0029] When the graphics of the application program is updated, the graphics engine of the operating system will call the QXL device driver, convert the operating system drawing instructions into QXL drawing instructions, and put them into the QXL command tree. The command tree is located in the memory of the QXL device and is directly read. Mapped to a physical memory a...

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Abstract

The invention discloses an improved SPICE video playing method based on a feedback frame loss algorithm. The method comprises the steps that an SPICE program provides a VDI interface through a QXL device, a graph updating instruction is obtained from the QXL command tree and added into a graph processing flow constructed by an SPICE server side, the SPICE server side is also used for detecting a video stream, and the QXL device is a graph processing device of a QEMU virtual machine and is compatible with a VGA. The method is combined with an optimized frame loss algorithm, so that the transmission performance of the video stream in the network can be improved. According to the invention, more network bandwidths are allocated to the current video stream, so that the frame loss rate of the video can be effectively reduced. The invention can effectively save the network bandwidth. The optimized video frame loss algorithm not only reduces the network bandwidth pressure, but also reduces the video frame loss rate.

Description

technical field [0001] The invention relates to a method for improving SPICE video playback based on a feedback frame loss algorithm, and belongs to the technical field of high-quality video playback. Background technique [0002] Aiming at the problem of SPICE remote desktop video playback quality, the present invention proposes to implement a strategy based on the original architecture that combines the proportional factor of the network bandwidth occupied by the video stream with the feedback frame loss algorithm. This solution can select different frame loss according to different network bandwidths. The algorithm can effectively reduce the delay and jitter caused by network bandwidth to the SPICE desktop video transmission process, and can also reduce the frame loss in the network transmission process of the video stream. Improve the fluency of video playback on the SPICE client. The traditional remote desktop transmission protocol works in a virtual machine, which can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/4401G06F9/455G06F13/42H04L29/06H04L29/08
CPCG06F9/4411G06F13/4282G06F9/45554H04L67/08H04L69/26
Inventor 侯亚杰马双涛刘毅枫李光涛
Owner SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD
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