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Dynamic rectangular area block based remote desktop protocol (RDP) echoing and scaling method and system

A rectangular area and protocol technology, which is applied to TV system components, graphic image conversion, color TV components, etc., can solve problems such as large system resource consumption, large video data data capacity, and unclear playback effects. To achieve the effect of simple deployment and saving system overhead

Active Publication Date: 2012-10-24
德讯创新(北京)科技有限公司
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Problems solved by technology

In order to meet the requirements of data playback, it is usually necessary to convert the RDP data stream into a streaming video stream. Such a solution requires a dedicated data conversion module, which increases the complexity of the system, and the conversion process requires a large amount of system resources. , and the generated video data has a large data capacity, and the playback effect is not clear enough

Method used

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  • Dynamic rectangular area block based remote desktop protocol (RDP) echoing and scaling method and system

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Embodiment 1

[0049] This embodiment provides an RDP protocol-based echo scaling method based on dynamic rectangular area segmentation, the process is as follows figure 1 shown, including:

[0050] RDP protocol analysis and image data acquisition: separate data such as image data and control data in the RDP protocol, and obtain image data; RDP protocol analysis is based on the cracked RDP5.x protocol analysis method; RDP protocol analysis technology is an existing technology, not in Repeat here.

[0051] Image data is converted into memory data: The image data included in the RDP protocol usually includes screen background, font, and bitmap image data. The key is the raster image data, which is the bulk of the image data that can eventually be converted to a bitmap and echoed back to the screen. The main purpose of this step is to convert each lattice of such data into a memory data structure, which can be described as:

[0052] Struct pixel

[0053] {

[0054] int PosX;

[005...

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Abstract

The invention relates to a graphics device interface (GDI) echoing and scaling method and a device and particularly relates to a dynamic rectangular area block based remote desktop protocol (RDP) echoing and scaling method and a system. The method includes converting each dot matrix of dot matrix image data in image data into a memory data structure; judging the validity of memory data; updating the memory data to memory positions corresponding to the memory data; converting the image data mapped by the memory data in a rectangular area into bitmaps; subjecting the bitmaps to equal proportion scaling and calculating equal proportion echo coordinates; and drawing each small bitmaps to a screen according to the coordinates by means of windows-GDI echo bitmap data and. According to the dynamic rectangular area block based RDP echoing and scaling method and the system, the actual requirements of echoing and scaling at any ratio of RDP source data are satisfied, and the process of view screen conversion is omitted, so that the system deploy is simple, picture definition is high, and system resource consumption is low.

Description

technical field [0001] The invention relates to a GDI echo display and scaling method and device, in particular to an echo scaling method and system based on dynamic rectangular area division of the RDP protocol. Background technique [0002] As a common operation and maintenance protocol, the RDP protocol is already a sharp weapon in the hands of the majority of operation and maintenance personnel. The requirements of security operation and maintenance and auditing require video recording and synchronous playback of the RDP operation and maintenance process. In order to meet the requirements of data playback, it is usually necessary to convert the RDP data stream into a streaming video stream. Such a solution requires a dedicated data conversion module, which increases the complexity of the system, and the conversion process requires a large amount of system resources. , and the generated video data has a large data capacity, and the playback effect is not clear enough. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/93G06T3/40
Inventor 花卫国
Owner 德讯创新(北京)科技有限公司
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