Video inverted-order playback and rapid positioning method based on HIKVISION DVR

A positioning method and video technology, applied in TV, color TV, closed-circuit television system, etc., can solve the problems that key video segments are difficult to capture, sensitive video segments are difficult to control, key video points cannot be quickly located, etc., to achieve fast positioning, achieve effective control

Inactive Publication Date: 2014-11-12
CHINA CHANGFENG SCI TECH IND GROUPCORP
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to solve the above-mentioned problems in the prior art, and provide a video reverse playback technology based on Hikvision DVR, so as to

Method used

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  • Video inverted-order playback and rapid positioning method based on HIKVISION DVR
  • Video inverted-order playback and rapid positioning method based on HIKVISION DVR

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Embodiment Construction

[0035] The video reverse playback based on Hikvision DVR mainly relies on the underlying function support of Hikvision DVR. Under the environment of existing underlying technical support, a video playback function based on Hikvision DVR is developed according to the actual video surveillance needs. The reverse processing flow is as follows figure 1 As shown, the reverse playback control process is as follows figure 2 shown.

[0036] It mainly includes the following steps:

[0037] (1) Obtain the current video playback end time, and start playing backwards from this time point;

[0038] (2) Set the start time to 0, indicating that it can continue to play backwards from the end time of the video;

[0039] (3) Convert the start time and end time to the system file time, which is convenient for calling related underlying system functions;

[0040] (4) Start the download thread, use the concept of mutual exclusion variable in this thread, so that control each thread to visit v...

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Abstract

The invention discloses a video inverted-order playback and rapid positioning method based on a HIKVISION DVR. The video inverted-order playback and rapid positioning method includes the following steps: (1) playing stopping time of a current video is obtained, and playback is started from the time point; (2) starting time is set to be 0, and it is shown that playback can be continued from the stopping time of the video; (3) the starting time and the stopping time are converted into system file time, so that related bottom-layer system functions can be conveniently called; (4) downloading threads are started, wherein the mutual exclusion variable concept is used in the threads to control the threads to access a variable in order, and thread blocking is prevented; (5) starting from the stopping time, videos are played every five seconds, video bit streams in every five seconds are processed, and inverted-order playing of the corresponding videos is carried out through a buffering area and a callback function; (6) the process is repeated till a playback stopping process is started, and playback is finished; (7) a video in-order playing process is started.

Description

technical field [0001] The invention relates to the field of video monitoring, in particular to a method for video reverse playback and fast positioning based on Hikvision DVR, which mainly solves the fast re-reproduction and positioning of a certain important video. Background technique [0002] DVR is a digital video recorder. It is a computer system for image storage and processing. It has the functions of long-term video recording, recording, remote monitoring and control of image / voice. Hikvision DVR is one of the relatively stable products in this field in recent years. Moreover, DVR-based video playback has become the main means of video surveillance in recent years, and the video playback on Hikvision DVR is mainly divided into two categories: playback video files by time and playback video files by file name. By playing back video files, it can meet the user's function of viewing a certain important video. The video to be viewed is transmitted from the DVR and play...

Claims

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Application Information

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IPC IPC(8): H04N7/18H04N5/76
Inventor 孙亚妮
Owner CHINA CHANGFENG SCI TECH IND GROUPCORP
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