Concurrent Modulation and Buffering Storage Method of Multi-Video Stream Data Based on Continuous Storage Model

Abstract

The invention discloses a storage method for concurrent modulation and buffering of multiple video stream data based on a continuous storage model. Including steps: A. When the data storage node is initialized, a block file of a fixed size is established in advance on each disk that has just been formatted, and then each block file is divided into several continuous file pieces of a fixed size; B. When multi-channel video stream network I / O arrives, the data of each video stream is merged into one or more complete piece data in the memory cache according to the size of the file piece; C. The scheduler writes piece data to disk in batches In the file slice in . The present invention proposes a self-defined continuous storage model for the storage of massive high-definition video stream data, which effectively solves the fragmentation of disk partition space caused by frequent creation and deletion of files, and avoids the concurrent writing process of video stream files by disk heads The back-and-forth movement in the disk efficiently utilizes the disk I / O throughput rate and improves the disk write rate at the same time.

Description

technical field

[0001] The invention relates to a storage method for concurrent modulation and buffering of multiple video stream data based on a continuous storage model, belongs to the field of computer software, and relates to a file system. Background technique

[0002] Video surveillance technology has always occupied an important position in the development of intelligent transportation. In recent years, the storage technology of video surveillance data has been more and more severely tested with the intensive distribution of front-end cameras and the high-definition of collected data. The existing video surveillance storage mainly adopts NVR storage solution: centralized management and control through the central business platform, network video server and IP camera as the front end, and IPSAN / NAS network storage as the back end for deployment. As the front end of NVR storage, the high-definition IP camera brings pressure on background storage is obvious. Taking a v...

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