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A method for seamless switching of video streams based on dpi packet detection technology

A technology of video stream and deep packet inspection, which is applied to color TV components, TV system components, TVs, etc., and can solve problems such as poor user experience, limited use scenarios, and inability to meet the switching of video streams in full IP mode , to achieve the effect of low cost and simple implementation

Active Publication Date: 2017-02-22
北京数码视讯软件技术发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] With the rapid development of multimedia technology and high-speed computer networks, users are paying more and more attention to user experience. When traditional TV or media streams are switched between two media streams, there will always be a black screen or mosaic phenomenon in the middle of the switch, and the user experience is very poor. ;The digital switching matrix in the existing TV stations limits the usage scenarios, and cannot meet the switching between video streams in the all-IP mode

Method used

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  • A method for seamless switching of video streams based on dpi packet detection technology
  • A method for seamless switching of video streams based on dpi packet detection technology
  • A method for seamless switching of video streams based on dpi packet detection technology

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Embodiment Construction

[0014] The present invention will be further described in detail below through specific implementation examples in conjunction with the accompanying drawings.

[0015] Such as Figure 1-3 As shown, a method for seamless switching of video streams based on DPI packet detection technology of the present invention includes the following steps:

[0016] (1) Using DPI (Deep Packet Inspection) deep packet inspection technology to detect and analyze each IP data packet in the first IP video stream input from port SPort1, read the IP data packet payload content and reorganize application layer information Obtain the GOP, frame type I / P / B, timestamp, serial number, and data packet source identification corresponding to the IP data packet, and uniformly forward the IP data packets that meet the characteristics of the first IP video stream to the port DPort for output; The IP video stream is a video stream in a standard IP encapsulation format (including RTP, HTTP, etc.).

[0017] (2) Monitor...

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Abstract

The invention discloses a method for achieving video stream seamless switching based on the DPI packet inspection technology. The method comprises the steps of obtaining an I frame, the first one to be captured, of a second path of video stream through identification and analysis of online IP data stream content, forcing a first path of video stream to be stopped, discarding the data packets, before the captured I frame, of the second path of video frame, and enabling the second path of video stream to be in seamless butt joint with the rear side of the first path of video stream so that quick and seamless switching of the two paths of video streams can be realized. By the adoption of the method, seamless switching of two paths of video streams in standard IP packaging formats (including the RTP format and HTTP format) is achieved, and a simple and low-cost method is provided for online quick and seamless switching of video streams.

Description

Technical field [0001] The invention belongs to the technical field of media digital processing, and relates to a method for quickly switching between multiple video streams, and in particular to a method for implementing seamless switching of video streams based on DPI (Deep Packet Inspection) deep packet inspection technology. Background technique [0002] With the rapid development of multimedia technology and computer high-speed networks, users are paying more and more attention to user experience. When traditional TV or media streams switch between two media streams, there will always be a black screen or mosaic phenomenon in the middle of the switch, and the user experience is very poor ; The digital switching matrix in the existing TV station limits the use of scenes, and cannot meet the switching between video streams in the all-IP mode. Summary of the invention [0003] Aiming at the deficiencies of the prior art, the present invention provides a method for seamless switc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/268H04N21/647H04L12/26
Inventor 陈凌龙郑小刚雷强黄一峰
Owner 北京数码视讯软件技术发展有限公司