Distributed IP (Internet Protocol) video decoder synchronous stitching and on-wall method and system

A distributed video and video decoder technology, applied in the field of security monitoring, can solve the problems of inconvenient transplantation, expensive labor cost and hardware cost, and complicated steps, so as to reduce cost and complexity, facilitate transplantation, and reduce hardware dependence. Effect

Active Publication Date: 2013-11-20
SHENZHEN INFINOVA
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Problems solved by technology

First of all, this method is highly dependent on hardware, which is very inconvenient for transplantation. Every improvement and fine-tuning is accompanied by hardware upgrades; secondly, this centralized processing method is very convenient an...

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  • Distributed IP (Internet Protocol) video decoder synchronous stitching and on-wall method and system
  • Distributed IP (Internet Protocol) video decoder synchronous stitching and on-wall method and system
  • Distributed IP (Internet Protocol) video decoder synchronous stitching and on-wall method and system

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Embodiment Construction

[0023] Below we will describe in detail the specific implementation of the present invention in conjunction with the accompanying drawings.

[0024] The present invention is based on such an idea: first, any decoder in the decoder cluster is calibrated to any public time server (the public time server can be one of the decoder clusters), such as using Network Time Protocol , NTP for time synchronization, since the decoders used for splicing share the same switch in most cases, the time difference between the non-real-time systems of the decoders can reach the NTP protocol "less than 1ms time difference in the LAN environment", such as figure 1 shown. The realization of NTP time synchronization is very simple. For example, third-party software can be used to realize it. The time synchronization here is just a means of our synchronization technology to unify the time of each decoder, and other high-precision time synchronization methods can also be used. Therefore, the time syn...

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Abstract

The invention provides a distributed video decoding system and a synchronous stitching and on-wall method thereof. The distributed video decoding system comprises a decoder group consisting of a plurality of discrete IP (Internet Protocol) video decoders. According to the method, synchronous stitching and on-wall of a plurality of discrete IP video decoders are realized by using a video stitching and synchronizing mechanism and a decoding control mechanism. According to the method and the system, parts of IP images are selected through a plurality of decoders respectively to be directly decoded and put on a wall without being limited to a centralized stitching controller or purchasing an expensive stitching management hardware platform, so that the cost and the complexity are effectively reduced, and meanwhile, a better effect is achieved; the synchronizing mechanism of the distributed method is implemented on the basis of software, the hardware dependency is extremely low, and the system can be very conveniently transplanted to different hardware platforms.

Description

Technical field: [0001] The invention relates to the field of security monitoring, in particular to a system and a method for decoding and synchronizing an IP video decoder on a splicing wall. Background technique: [0002] The practice of splicing traditional video sources (computers, decoders, etc.) on the wall is realized by splicing controllers. This type of splicing controller is generally implemented by full hardware and supports multiple video input modes, such as HDMI, VGA, BNC, etc. When the IP network video is to be spliced ​​on the wall through this type of splicing controller, it must first be converted to the input format supported by the splicing controller with a decoder, such as HDMI, and then unified on the splicing wall through the splicing controller. This method can be called a centralized processing method on hardware. First of all, this method is highly dependent on hardware, which is very inconvenient for transplantation. Every improvement and fine-t...

Claims

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Application Information

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IPC IPC(8): H04N21/4405H04N21/434H04N21/647H04N7/18
Inventor 李昭良杨振宇赵德辉
Owner SHENZHEN INFINOVA
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