Index rebuilding method applied to audio-video data access of bus-mounted hard disk

A technology for data access and index reconstruction, applied in audio data indexing, video data indexing, audio data retrieval, etc., can solve problems such as inability to search for video data, index data recording errors, and unsynchronized indexes, and achieve fast and accurate indexing. The effect of reconstruction and resolution of data errors

Active Publication Date: 2018-02-23
ZHENGZHOU TIAMAES TECH
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AI Technical Summary

Problems solved by technology

[0002] The purpose of index reconstruction is to prevent the video data from being unable to be searched (actually video data exists) problem

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  • Index rebuilding method applied to audio-video data access of bus-mounted hard disk
  • Index rebuilding method applied to audio-video data access of bus-mounted hard disk

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Embodiment Construction

[0018] The technical solutions of the present invention will be described in further detail below through specific implementation methods.

[0019] Such as figure 1 and figure 2 As shown, an index rebuilding method for accessing audio and video data on a bus hard disk, when accessing audio and video data, the FAT file system is used, and the index file is set with a primary index and a secondary index, wherein the primary index is a file index, and the secondary index is a data frame index; the index rebuilding process is:

[0020] Step 1, retrieve the video data VIDEO-IFRAME or audio frame AUDIO-FRAME in the video and audio data and establish a new data frame index;

[0021] Step 2, read the original data frame index and compare it with the new data frame index;

[0022] Step 2.1, if the comparison is consistent, there is no need to update the original data frame index;

[0023] Step 2.2, if the comparison is inconsistent, then synchronize the new data frame index to the...

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Abstract

The invention provides an index rebuilding method applied to audio-video data access of a bus-mounted hard disk. In a process of accessing audio / video data, an FAT (File Allocation Table) file systemis adopted; an index file is provided with a primary index and a secondary index; the primary index is a file index; the secondary index is a data frame index. The index rebuilding method comprises the following steps: 1, retrieving VIDEO-IFRAME or AUDIO-FRAME from the video-audio data and building a new data frame index; 2, reading an original data frame index, and comparing the original data frame index with a new data frame index; 3, retrieving file information in each data file, and rebuilding a new file index; 4, comparing the original file index with the new file index. By adopting a secondary index mechanism, index rebuilding can be performed rapidly and accurately, and the problem of data error occurring in a data accessing process is solved.

Description

technical field [0001] The invention relates to the field of hard disk data access, in particular to an index rebuilding method for accessing audio and video data of a hard disk on a bus. Background technique [0002] The purpose of index reconstruction is to prevent the video data from being unable to be searched (actually video data exists). Index rebuilding is an index rebuilding or recovery function established for the "primary index" file index and the "secondary index" data frame index. Through index rebuilding, the data error problem that occurs during the data access process can be solved. Contents of the invention [0003] The object of the present invention is to aim at the deficiencies of the prior art, and provide a scientifically designed, easy-to-implement, and data-accurate index rebuilding method for accessing audio and video data on a bus hard disk. [0004] In order to achieve the above object, the technical solution adopted in the present invention is...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G06F17/30
CPCG06F16/61G06F16/71
Inventor郭建国张鑫任海波李翰楷
OwnerZHENGZHOU TIAMAES TECH