History video file format storage method used for monitoring industry and system

Abstract

The invention provides a history video file format storage method used for a monitoring industry and a system. The method includes: creating a video data file; creating an index file; and using creation time as an association word to establish an association mapping relationship of the index file and the video data file, and saving the associated video data file and index file at the same time into storage equipment. The system includes a video data creation module, an index file creation module, an association module and a storage module in communication connection. According to the method provided by the invention, more videos can be stored on the premise of the same disk space, the same video quality and the same playing duration; at the same time, file format processing speed before writing is greatly improved, and transmission time in a file storage process is shortened; and in addition, a video file of a specific time point in history video files can be positioned more quickly, video positioning is more accurate, and positioning time is shortened.

Description

technical field [0001] The invention relates to the technical field of video monitoring, in particular to a method and system for storing historical video file formats used in the monitoring industry. Background technique [0002] With the continuous promotion of informatization construction, more and more surveillance cameras are used in public places, which will generate a large amount of video data, and the disk space required for video data storage will also increase. Due to the existence of a large amount of video data, Historical data query has become a difficult point in the current monitoring industry. In order to improve the query speed, the current requirements for the use of historical video files will continue to increase. [0003] Videos in the surveillance industry are generally stored on hardware devices, and the storage space of any device is limited. With the extensive use of surveillance cameras, video storage devices are also gradually increasing. The exi...

AI Technical Summary

Problems solved by technology

The existing video storage formats include TS, MP4 and other video file formats. The format used for the real-time video transmitted by the camera to the storage device is the real-time transfer protocol RTP plus compressed video encoding data, such as: H.264, H. 265, etc. After the storage device receives the transmitted real-time video data, it needs to add the data information of the target storage format of the device itself before storing. The conversion process is: extract the video stream from the real-time video data, and then pack the video stream For example, when the target format is TS, it needs to be converted to TS format for saving. This storage method with additional information specific to the target file format has the following defects: (1) There are many stored file fragments, which will result in A large number of file fragments, large and small files, are not easy to manage; (2) The disk space occupied is relatively large. Regardless of the current video file format, it will be faster than real-time video data under the same video quality and duration. Large size; (3) The positioning speed in the specified historical video file is slow. To locate a specific time point in a given historical video file, the positioning speed is slow, and most of them use the historical video file format itself (4) Before writing to the storage device, it takes a long time to convert to the target format, and the conversion process is cumbersome

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