Control method for video display

A technology of video display and control methods, which is applied in the direction of program control devices, static indicators, cathode ray tube indicators, etc., can solve the problems of increasing system cost, high system CPU usage, and inability to run other applications, etc., to reduce Occupancy rate, the effect of simple functions

Active Publication Date: 2013-02-13
SHANGHAI RAPTOR AUTOMOTIVE CO LTD
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Problems solved by technology

This has brought about a series of problems, such as the proprietary video processing chip will inevitably increase the system cost, realize special effects through the interface provided by DirectShow, the system CPU usage is high, and other applications cannot be run under the condition of limited system resources. such as navigation applications etc.

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  • Control method for video display

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Embodiment Construction

[0022] In order to allow those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described below in conjunction with the accompanying drawings.

[0023] Such as figure 1 As shown, the present invention discloses a video display control method, including the following steps: (1) selecting a video source through a video source selection unit; (2) setting display parameters for the selected video source through a display parameter configuration unit; (3) Display video after video display is enabled by the display enabling unit; the video source selection unit includes a video source selection interface and a video source selection drive unit invoked by it; the display parameter configuration unit includes a display parameter configuration An interface and a display driving unit called by it; the display enabling unit includes a display enabling interface and a display driving unit called by it.

[0024...

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Abstract

The invention discloses a control method for video display. The control method includes that step one, video source selection is performed through a video source selection unit; step two, selected videos are subjected to display parameter setting through a display parameter configuration unit; step three, videos are displayed after enable video display by a display enable unit, the video source selection unit comprises a video source selection interface and a video source selection driving unit which is called by the video source selection interface, the display parameter configuration unit comprises a display parameter configuration interface and a display driving unit which is called by the display parameter configuration interface, and the display enable unit comprises a display enable interface and a display enable driving unit which is called by the display enable interface. According to the control method for the video display, the underlaying drive is subjected to packaging, the usage of the video display and processing function is simple and convenient, by means of the packaging of a directdraw interface, the video display is performed without calling a Directshow interface, and the occupation ratio of central processing unit (CPU) during video displaying is efficiently reduced.

Description

technical field [0001] The invention relates to a video display control method. Background technique [0002] The video display and processing of vehicle equipment generally requires a proprietary video processing chip to realize special effect display, and the method of realizing special effects (such as zooming in, zooming out, semi-transparent, picture-in-picture) is generally realized through the DirectShow interface provided by Microsoft. This has brought about a series of problems, such as the proprietary video processing chip will inevitably increase the system cost, realize special effects through the interface provided by DirectShow, the system CPU usage is high, and other applications cannot be run under the condition of limited system resources. Such as navigation applications etc. On the other hand, implementing special effects through the interface provided by DirectShow requires developers to be familiar with DirectShow programming. Contents of the invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/44G09G5/00
Inventor 怀保玲汤沛锋孙易林
Owner SHANGHAI RAPTOR AUTOMOTIVE CO LTD
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