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Video data copy method, video data splicing method and corresponding systems

A video data and data technology, which is applied to closed-circuit television systems, components of television systems, televisions, etc., can solve the problems of poor splicing effect and affect the copying efficiency of image data, etc., so as to avoid delay, improve copying efficiency, and improve effect. Effect

Active Publication Date: 2017-01-11
GUANGDONG VTRON TECH CO LTD
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Problems solved by technology

[0004] Based on this, it is necessary to provide a method and system for video data copying and splicing in view of the problem that traditional solutions affect the copying efficiency of image data, and may even delay the splicing of subsequent video data, resulting in poor splicing effects

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  • Video data copy method, video data splicing method and corresponding systems
  • Video data copy method, video data splicing method and corresponding systems
  • Video data copy method, video data splicing method and corresponding systems

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Embodiment Construction

[0027] The specific implementation of the video data copying and splicing method and system of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] refer to figure 1 , figure 1 Shown is the flow chart of the video data copying method of an embodiment, comprises the following steps:

[0029] S10, after the video data is decoded, obtain the destination head address of the storage space allocated by the control system for the video data;

[0030] In the above steps, after decoding the video data, the control system of the video wall and other large-screen display equipment allocates storage space for dynamically storing the decoded video data for the video data. The control system can call related functions (such as the first address read function) to read the destination first address of the storage space.

[0031] In one embodiment, the above step S10, after the video data is decoded, the process of obtaining the des...

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Abstract

The present invention relates to a video data copy method, a video data splicing method and corresponding systems. The video data copy method includes the following steps that: after video data are decoded, the target initial address of a storage space allocated for the video data by a control system is obtained; the position information of each display window for displaying the video data is acquired, and the target offset addresses of the display windows and sub offset addresses corresponding to the display windows are determined according to the position information; the pixel initial address of a frame of image data which are currently copied in the video data is obtained, and the data length of a display window corresponding to the image data is obtained; and image data in the data length with the pixel initial address adopted as a starting point are copied to the control system according to the target initial address, the target offset addresses and the sub offset addresses, and the storage space is allocated for the video data. With the methods and the systems adopted, the copy efficiency of each frame of image data in the video data can be effectively improved, the copy efficiency of the video data can be improved, and the stitching effect of corresponding video data can be improved.

Description

technical field [0001] The invention relates to the technical field of video signal processing, in particular to a method and system for copying and splicing video data. Background technique [0002] Large-screen display devices such as splicing walls have been widely used in our daily life. For example, using large-screen display devices to monitor or record scenes such as combat centers, bus management centers, taxi debugging, and railway management centers can be used to a greater extent. Improve the effect of the above monitoring or recording. In the process of displaying the corresponding video (such as surveillance video or recorded video) on the large-screen display device, it is necessary to perform window opening processing on the display screen of the large-screen display device to form multiple display windows, and then send copies to each display window Each frame of image data to the large-screen display device, so as to realize the display of each frame of ima...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18H04N5/262
CPCH04N5/262H04N7/18
Inventor 李光辉
Owner GUANGDONG VTRON TECH CO LTD
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