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Method and device for multi-channel video playback

A multi-channel video and video technology, applied in closed-circuit television systems, TVs, color TVs, etc., can solve the problem of out-of-sync video data playback

Active Publication Date: 2016-01-20
ZHEJIANG DAHUA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a multi-channel video playback method and device to solve the problem of out-of-sync playback of video data corresponding to multiple path identifiers in the process of implementing multi-channel video playback in the prior art

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  • Method and device for multi-channel video playback
  • Method and device for multi-channel video playback
  • Method and device for multi-channel video playback

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Embodiment Construction

[0025] In order to solve the problem of unsynchronized playback of video data corresponding to multiple path identifiers in the process of implementing multi-channel video playback in the prior art. In the embodiment of the present invention, the client sends the video playback request messages corresponding to multiple path identifiers to the server according to the multi-channel video playback instructions input by the user; the client obtains the video playback responses according to the video playback response messages sent by the server. The video data carried in the message is stored locally; according to the time stamp information of each path identifier, the client synchronously plays the video data corresponding to all path identifiers based on the local current time of the client. By adopting the technical scheme of the present invention, the client caches the video data corresponding to all the path identifiers, and synchronously plays all the locally saved video data...

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Abstract

The invention discloses a method and a device for multi-channel video playback. The method comprises the steps that a client sends video playback request messages which respectively correspond to multiple path identifications to a server based on a multi-channel video playback instruction input by a user; and after receiving a video playback response message which corresponds to each path identification and is generated by the server based on the video playback request message corresponding to each path identification, the client plays video data corresponding to all the path identifications synchronously by regarding the local current time of the client as a benchmark respectively based on time stamp information of video data carried in the video playback response message which corresponds to each path identification. By adoption of the technical scheme, the client plays the video data corresponding to all the paths synchronously based on the time stamp information of the video data corresponding to each path identification, so that synchronization of videos shown in multiple windows is kept during the multi-channel video playback process, and the system performance is improved efficiently.

Description

Technical field [0001] The present invention relates to the field of video data processing, in particular to a multi-channel video playback method and device. Background technique [0002] Multi-channel playback technology is a technology that displays surveillance videos of one or more scenes stored in multiple surveillance devices in the same window. This multi-channel playback technology has been widely used in order to effectively save the cost of human resources in the monitoring process and improve the management performance of each scene. [0003] In a multi-channel video playback system using multi-channel playback technology, multiple video surveillance devices monitor one or more scenes, and send the video data generated by the monitoring to a multi-channel video service platform (such as NVR). In the road video service platform, each video surveillance device corresponds to a unique path identifier. When there is any client that needs to obtain video data within any ti...

Claims

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Application Information

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IPC IPC(8): H04N7/18H04N5/76H04N21/8547
Inventor 朱丛虎殷俊张兴明
Owner ZHEJIANG DAHUA TECH CO LTD
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