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Multi-type video file block storage system and method

A technology of video file and block storage, which is applied in the parts, electrical components, image communication and other directions of TV systems, can solve the problems of low system operation efficiency, easy generation of disk fragments, and incomplete solutions, so as to reduce the burden and save money. Disk resources, the effect of improving utilization

Active Publication Date: 2010-08-04
SHANGHAI AVCON INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) If two or more types of videos appear at the same time, a video file must be saved for each type, which wastes disk space;
[0005] (2) If alarms and alarm releases occur frequently, many small video files will be generated, and their creation and deletion will easily generate disk fragments and reduce the operating efficiency of the system
[0007] Using the above scheme, the user can conveniently operate the required video content according to the task or time, which greatly facilitates the user's use; but the above scheme does not completely solve the shortcomings of the existing technology

Method used

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  • Multi-type video file block storage system and method
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  • Multi-type video file block storage system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] see figure 1 , the invention discloses a multi-type video file block storage system, the storage system prepares video disk space for video in advance, and the size and position of the video disk space are specified by the user; the disk space is divided into more low-level subdirectories, and then create block files in the subdirectories; in each subdirectory, create a configuration file (the tracking information of the configuration file may include: the number of free blocks in the current directory, the minimum free block number, the Usage) to track the usage of all block files in the current directory; when recording, a hard link file pointing to the block file is generated in the recording directory, and when the length of the recording exceeds the size of the block file, the next block file until the end of the video; save the video information in the database for users to query and watch; save the video block information in the database; make a table of correspo...

Embodiment 2

[0066] The difference between this embodiment and Embodiment 1 is that in this embodiment, step 2 in the method of Embodiment 1 may not be included, that is, the disk space does not need to be divided into more lower-level subdirectories.

[0067] In this embodiment, the recording disk space is prepared for the recording in advance; a block file and a configuration file are created in the disk to track the usage of all block files; when recording, a hard link file pointing to the block file is generated; When the length exceeds the block file size, then assign the next block file until the end of the recording; save the recording information into the database for users to query and watch; the recording block information is also stored in the database; make a copy The correspondence table between recordings and recording blocks, the table lists one or more recording block files corresponding to one recording, or multiple recordings corresponding to one recording block.

Embodiment 3

[0069] When the recording software is installed on a certain DVR, when the software is running, the recording files are usually stored separately according to the recording time and recording channel.

[0070] Now, the solution of this embodiment is to prepare all the recording disk space (the size and location of which are specified by the user) for the recording in advance, and divide the space into file blocks of equal size for unified management; in practical applications, The disk space can be subdivided into more lower-level subdirectories, and block files are created in these subdirectories, and the subdirectories are named by number; these block files are named by BlockXXX (number).

[0071] In each subdirectory, create a configuration file to track the usage of all blocks in the current directory. The tracking information includes: the number of free blocks in the current directory, the minimum number of free blocks, and the usage of each block. The content of the con...

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PUM

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Abstract

The invention discloses multi-type video file block storage system and method. The method comprises the following steps of: preparing a video disk space for a video in advance; establishing block files and a configuration file in the disk so as to track the use conditions of all the block files; during recording a video, generating a hard link file directing to the block files; when the length of the video exceeds the size of a block file, distributing a next block file for the video until the video ends; storing the information of the video into a database for a user to inquire and watch; storing the information of video blocks into the database; and making a corresponding relation table of the video and the video blocks, wherein the table lists out one or more video block files corresponding to a video or a plurality of videos corresponding to a video block. The invention can effectively improve the utilization rate of the video disk of the user, thereby saving the disk resources.

Description

technical field [0001] The invention belongs to the technical field of monitoring video management, and relates to a block storage system for video files, in particular to a block storage system for multi-type video files; meanwhile, the invention also relates to a storage method for the above-mentioned multi-type video file block storage system . Background technique [0002] The current general process of video recording is to create a new video recording task in the corresponding monitoring channel or modify the current video recording task to record after the video recording task condition is triggered. According to the different trigger conditions, the recording is divided into the following three types: manual recording, timed recording, alarm recording; and a recording file has only one recording type. [0003] This leads to the following problems: [0004] (1) If there are two or more types of video recordings at the same time, it is necessary to save a video file ...

Claims

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Application Information

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IPC IPC(8): G06F17/30H04N5/78
Inventor 刘辉平黄昭强
Owner SHANGHAI AVCON INFORMATION TECH