Video reading method and device, equipment and storage medium
A technology of video and video files, which is applied in closed-circuit television systems, electrical components, selective content distribution, etc. It can solve the problems of short video duration and inability to completely obtain time node video clips, etc.
Pending Publication Date: 2022-04-15
ZHEJIANG DAHUA TECH CO LTD
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Problems solved by technology
[0005] There are a large number of video clips such as alarm recordings and motion detection recordings, and the video duration is relatively short. It may not be possible to completely obtain the video clips corresponding to the time nodes in many video files.
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[0055] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0056] The video reading method provided by this application can be applied to such as figure 1shown in the application environment. Wherein, the client terminal 102 communicates with the storage terminal 104 through the network. The video files captured by the camera are stored in the storage terminal 104, and the client terminal 102 can read these video files from the storage terminal 104. A video file may refer to one video or multiple videos. Wherein, the client terminal 102 can be but not limited to various personal computers, notebook computers, smart phones, table...
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The invention relates to a video reading method and device, equipment and a storage medium. The method comprises the steps of receiving video query time, obtaining a time node corresponding to the video query time in a pre-constructed time pool, obtaining a data node corresponding to the time node in a pre-constructed data pool according to a data node identifier in the time node, and reading a video file at a video file storage position in the data node; a file identifier is arranged in the time node, and the file identifier is a file header identifier, a file body identifier or a file end identifier; according to the data node identifiers in the time nodes, obtaining the data nodes corresponding to the time nodes in a pre-constructed data pool comprises the following steps: traversing the time nodes according to the file identifiers in the time nodes to obtain a time node sequence of the video file; and according to the data node identifier in each time node in the time node sequence, obtaining the data node corresponding to each time node in the data pool. The method can realize complete acquisition of the video clip.
Description
[0001] This application is a divisional application of the invention application of "application number: 201910707187.1, application date: August 1, 2019, title: video reading method, device, equipment and storage medium". technical field [0002] The present application relates to the technical field of data storage, in particular to a video reading method, device, device and storage medium. Background technique [0003] With the development of video surveillance technology, the camera can also realize the recording of video clips such as alarm recording and motion detection recording when performing scene monitoring. For example, when a preset alarm event is detected in the monitoring screen, an alarm is triggered, and 5 seconds of video before and after the alarm are stored synchronously to obtain a 10-second alarm video. For another example, when a change in the monitoring screen is detected, 5 seconds of video before and after the detection of the change in the monitori...
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IPC IPC(8): H04N21/239H04N21/231H04N7/18
CPCH04N21/2393H04N21/23113H04N7/18
Inventor 王亚奇
Owner ZHEJIANG DAHUA TECH CO LTD