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Method and system for processing lost frames in ppt playback

A technology of dropping frames and screen data, applied in the field of image processing to avoid frame dropping

Active Publication Date: 2018-11-02
GUANGZHOU SHIRUI ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Based on this, it is necessary to provide a method and system for effectively playing PPT frame loss processing in view of the problem of frame loss in playing PPT in the current DXGI screen capture mode

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  • Method and system for processing lost frames in ppt playback
  • Method and system for processing lost frames in ppt playback
  • Method and system for processing lost frames in ppt playback

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Embodiment Construction

[0023] The DXGI screen capture module is a built-in functional module of the Microsoft system, and the DXGI screen capture module can efficiently capture screens. The working principle of the DXGI screen capture module is to send the changed image data, and the data will not be sent if the image data does not change, so when the PPT is full screen and the screen does not change, DXGI will slowly obtain the PPT image data of one frame, which is what causes the DXGI screen capture method The root cause of frame loss in PPT playback. In the method and system for playing PPT frame loss processing in the present invention, aiming at the above-mentioned working principle of the DXGI screen capture module, monitor the screen data, and time the duration of the screen data unchanged, and modify the screen data when the duration exceeds the preset threshold. When the screen data changes, the DXGI screen capture immediately collects (screen captures) the image data of the current frame o...

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Abstract

The present invention provides a method and system for playing PPT frame loss processing, runs the DXGI screen capture module, obtains the preceding frame in the cache of the graphics card, acquires screen data according to the preceding frame, monitors the screen data, and counts when the screen data is not The duration of the change, when the duration exceeds a preset threshold, modify the screen data, and when the screen data changes, the DXGI screen capture module captures a screen. During the whole process, when the screen data does not change for longer than the preset threshold, the screen data is actively modified to avoid frame loss in the DXGI screen capture module when the screen data does not change, and effectively play PPT frame loss processing.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a method and system for playing PPT frame loss processing. Background technique [0002] PPT (Microsoft Office PowerPoint, presentation) is Microsoft's presentation software. Users can demonstrate on a projector or computer, or print out the presentation and make it into a film, so that it can be applied to a wider range of fields. Using PPT can not only create presentations, but also hold face-to-face meetings, remote meetings or show presentations to audiences on the Internet. [0003] In the Microsoft operating system, when the user takes a screen capture operation on the display interface of the display device, the rendering system that comes with the Microsoft system—DXGI screen capture module is generally used to realize the screen capture operation, which has the characteristics of high screen capture efficiency. [0004] However, as users have higher an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/14
CPCG06F3/14G06F3/1415G09G2360/127G09G2360/00G09G5/08G06T1/0007
Inventor 陈仕同
Owner GUANGZHOU SHIRUI ELECTRONICS
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