Service-based video signal calling system and implementation method thereof

Abstract

The invention discloses a service-based video signal calling system, which comprises a hardware equipment service layer, an operating system calling layer, a signal acquisition access driving layer and a video signal calling service layer, wherein the hardware equipment service layer is used for acquisition videos, and adopts a video acquisition card; the operating system calling layer is used for starting a bottom-layer service, and calling corresponding software; the signal acquisition access driving layer is used for accessing various video signals; and the video signal calling service layer is used for receiving a video service request, analyzing the type of the video service request, and calling a video signal static attribute database and a video signal state iteration server according to the type of the request to finish operations. In addition, the invention also discloses an implementation method for the service-based video signal calling system. By the system and the method, a management platform is provided for the video signal needs of multiple signals and multiple channels, basic operations such as the initialization, switching and the like of a video service are separated from operations with relatively higher requirements on real-time performance such as displaying, hiding, parameter regulation and the like, and the service is highly efficiently and accurately provided for a user under the condition of meeting a computing speed.

Description

technical field [0001] The invention relates to a large-screen projection display system, in particular to a service-based video signal call system for the large-screen display system. In addition, the present invention also relates to the implementation method of the service-based video signal calling system. Background technique [0002] With the wide application of IP cameras and streaming media servers in the field of large-screen projection display, how to connect digital video streams to large-screen systems, how to reasonably call multi-signal and multi-channel video signals through an effective management platform, and quickly transfer video , Clear display on the big screen is becoming more and more important. [0003] Traditional video signals are mostly request-response, and the processing of all signals depends on the occurrence of requests. That is, the traditional video signal call mechanism is based on user instructions. Every time the user sends an instruc...

AI Technical Summary

Problems solved by technology

In this way, the computer operation speed and buffer size requirements for video signal service are relatively high, which is related to the limited performance caused by insufficient hardware configuration of video signal service equipment

In this way, because an instruction has to go through multiple layers of processing, the acquisition window needs to be initialized every time, so the efficiency is low, and the parameter adjustment response time of the acquisition window is also slow

And in this way, the portability is poor because the underlying commands are not abstracted

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