Method for storing embedded real-time video files

Abstract

The invention relates to a method for storing embedded real-time video files, comprising the following steps: (1) dividing a hard disk sector into five zones, i.e. a disc disk information zone, a retained information zone, a file information zone, an index information zone and a data zone according to the characteristic that videos are stored in the time sequence; (2) positioning the file information, the index information, the retained information and the data zone by the hard disk information, and positioning the index information by the file information; (3) after video file index information in the index information zone is updated and processed by a partition 1 and a partition 2 in the index information zone, obtaining the video file index information; and (4) finding corresponding index information for the video file information in the file information zone by the partition 1 and the partition 2 in the index information zone, finding a corresponding data block by the index information to store data, and storing the video data into the disc disk in the mode of data blocks. The method can be used for improving the safety of data and prolonging the service life of the hard disk. The invention can be widely applied to various fields of data storage.

Description

technical field [0001] The invention relates to a method for storing real-time video files, in particular to an embedded real-time video file storage method used in a high-security embedded video file system. Background technique [0002] At present, in the field of video storage, the storage of video files is mostly based on a common file system, namely FAT32 or NTFS. For video storage requirements, the traditional file system has a series of problems such as low read and write efficiency, limited disk capacity and partition size, no power-off protection function, low file data security, and a large number of file fragments after long-term continuous overwriting. Reduced disk usage. [0003] At present, embedded digital hard disk video recorders are developing towards high-definition and high-integration. In the general file system, the long-term video large data packets are subpackaged, and a complete video is divided into several small file packages, such as 5, 10 A fil...

AI Technical Summary

Problems solved by technology

This is easy to cause frame loss between packets. At the same time, the hard disk head needs to read and write data and file indexes frequently, and the head frequently jumps. For the DVR system (multimedia processing system based on digital technology) that continuously reads and writes the hard disk for a long time every day, Very easy to cause hard disk failure

There are two risks in the general file system used for video data management: one is that if the file allocation table is damaged, most of the video data will be lost, and the other is that the system is suddenly powered off or destroyed by man-made, and the current video data cannot be saved and restored

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