XFS CCTV METHOD FOR EXTRACTING CCTV IMAGE DATA IN THE UNALLOCATED AREA BASED ON INFORMAL XFS FILE SYSTEM AND APPARATUS THEREOF

摘要

The present invention relates to a method for extracting CCTV video data in an unallocated area based on an unstructured XFS file system and a device thereof. According to the present invention, the device for extracting CCTV video data based on an unstructured XFS file system comprises: a super block search unit which searches for a super block included in an allocation group and detects a location in which an XFS signature is stored; an information analysis and file extraction unit which analyzes information and extracts files for each of an allocated area and the unallocated areas of the unstructured XFS file system; and a video data extraction unit which extracts CCTV video data from the extracted data stored in the unallocated area. As described above, according to the present invention, by using the method of searching for and analyzing the super block and allocation group data of the XFS file system in a CCTV video recorder using the unstructured XFS file system, the CCTV video data stored in the unallocated area can be found and extracted. In addition, according to the present invention, not only in a single XFS partition, but also in an XFS partition mixed with MBR and GPT, the superblock can be searched to classify the allocated area and the unallocated area and extract the video data stored in each area.