CN104778222A - Media library establishing and updating method on basis of USB (Universal Serial Bus) storage equipment - Google Patents
Media library establishing and updating method on basis of USB (Universal Serial Bus) storage equipment Download PDFInfo
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Abstract
The invention relates to the field of content management of storage equipment and provides a media library establishing and updating method on the basis of USB (Universal Serial Bus) storage equipment so as to solve the problem of long scanning time when a primary MediaScanner of an Android system is adopted to carry out scanning. The method comprises a file scanning process and a scanned information extracting process. According to the technical scheme disclosed by the invention, integral scanning time can be effectively reduced and user experience in the scanning process is reinforced.
Description
Technical field
The present invention relates to storage content management domain, particularly a kind of media library based on USB storage device is set up and update method.
Background technology
After android system start and memory device access, memory device can be scanned and filter out media file, set up media information storehouse and use for application program.First android system is designed to cell phone system, and phone memory is very limited, and storage card does not exist plug frequently so MediaScanner module can be competent at this work completely yet.
At present, android system is widely used in the terminal such as intelligent television, network box, these terminals support the access of USB storage device, and USB storage device has the advantages that capacity is large, can frequently plug, if now still use the primary MediaScanner of android system to scan, there will be the problems such as file scan time length, multiple scanning, wherein sweep time, length can cause user cannot fast browsing media file, and multiple scanning can aggravate system burden, the probability that card pauses increases to make system occur, these problems greatly reduce Consumer's Experience.
Summary of the invention
[technical matters that will solve]
The object of this invention is to provide a kind of media library based on USB storage device to set up and update method, the problem that when adopting the primary MediaScanner of android system to scan to solve, sweep time is long.
[technical scheme]
The present invention is achieved by the following technical solutions.
The media library that the present invention relates to a kind of USB storage device is set up and update method, and the method comprises file scan flow process and scanning information extracts flow process,
Described file scan flow process comprises:
Steps A 1: set up media library in USB storage device, the file table of described media library at least comprises video file table, music file table, picture file table and folder list;
Step B1: carry out subregion to USB storage device and obtain each virtual partition, arranges the scan priority of virtual partition according to the last modification time of file in virtual partition;
Step C1: scan each virtual partition successively according to scan priority, checks after each virtual partition has been scanned whether media library has renewal, if media library has renewal, sends update notification,
Described scanning information extracts flow process and comprises:
The folder information that file scan is obtained and media file information write media library.
As one preferred embodiment, also comprise before described steps A 1:
Steps A 2: judge whether USB storage device accesses for the first time, if first access then performs steps A 1, otherwise then performs step B2;
Step B2: traversal media library, judge whether file corresponding to every bar data item of media library exists, if there is no from media library, record corresponding to this file is then deleted, judge whether fileinfo corresponding to every bar data item changes, if changed, upgrade record corresponding in media library according to fileinfo;
Step C2: carry out subregion to USB storage device and obtain each virtual partition, arranges the scan priority of virtual partition according to the last modification time of file in virtual partition and the number of media file, proceed to and perform step C1.
As another preferred embodiment, described the method that USB storage device carries out subregion to be comprised:
Arrange optimization subregion number, scanning USB storage device root directory obtains first class catalogue list, will scan the media file write media library obtained simultaneously;
Judge whether the catalogue number in first class catalogue list is greater than optimization subregion number, if it is adopt first class catalogue as virtual partition, otherwise adopt the mode scanned step by step obtain the sub-directory at different levels of USB storage device and select catalogue number to be more than or equal to the sub-directory of optimization subregion number as virtual partition.
As another preferred embodiment, described optimum partition number is according to the storage size of USB storage device and arranged by storage size.
As another preferred embodiment, state step C1 when scanning virtual partition, judge whether the file in virtual partition meets the first Rule of judgment, second Rule of judgment and the 3rd Rule of judgment, if met, marking this file is file to be scanned, described first Rule of judgment is all do not comprise media file in file and parent folder thereof, described second Rule of judgment is that the catalogue progression of this file is greater than the first judgment value, described 3rd Rule of judgment is that the number of non-media file in this file and the difference of sub-folder number are greater than the second judgment value, the method for solving of described first judgment value comprises: in statistics file folder virtual partition, place, media file number reduces the fastest catalogue progression, select the darkest catalogue progression as the first judgment value, described second judgment value is the mean value not comprising the file number in the file of media file in virtual partition, file place.
As another preferred embodiment, also comprise after described step C1:
If the system that USB storage device accesses is in idle condition, then the file to be scanned marked in read step C1 from media library scans, and after the end of scan, if media library has renewal, then sends update notification.
As another preferred embodiment, described media file comprises video file, music file and picture file.
As another preferred embodiment, the method arranging the scan priority of virtual partition according to the last modification time of file in virtual partition and the number of media file in described step D2 is:
Number according to media file carries out first time sequence to the priority of virtual partition;
Last modification time according to file sorts to carrying out second time to the priority of virtual partition, if there is the identical file of last modification time, then determines the order of the virtual partition that last modification time is identical according to the result of first time sequence.
As another preferred embodiment, the described number according to media file to the method that the priority of virtual partition carries out first time sequence is:
The virtual partition that video file number is many has high priority; If there is the virtual partition that video file number is identical, then, in the virtual partition that video file number is identical, the virtual partition that picture file number is many has high priority; If video file number, picture file number homogeneous phase are simultaneously, then, in the virtual partition that video file number, picture file number are all identical, the virtual partition that music file number is many has high priority.
As another preferred embodiment, described media file information comprises the title of media file, path, size and modification time, and described folder information comprises the number of the media file comprised in the sub-folder of the media file number comprised in the last modification time of file, file, the number of the non-media file comprised in file, file.
[beneficial effect]
The technical scheme that the present invention proposes has following beneficial effect:
(1) scanning process is decomposed by the present invention, the mode of virtual partition is utilized to scan USB storage device, user just can access without the need to waiting for that USB storage device has been completely scanned the media file added to recently in USB storage device, in the process building virtual partition, the present invention adopts the root directory of USB storage device and scans step by step, therefore, it is possible to identify the media file of USB storage device root directory fast.
(2) path without the need to scanning is rejected and scanning process is exited fast from the store path of unlikely store media files by the present invention in the process of scanning USB storage device, therefore the present invention scans from the heat source of most possible store media files, therefore scans more efficient.
(3) scanning process of the present invention and media file information leaching process are in different threads, can make full use of cpu resource.Therefore, the present invention effectively can reduce overall sweep time, enhances the Consumer's Experience in scanning process.
Accompanying drawing explanation
The process flow diagram of the file scan flow process that Fig. 1 provides for embodiments of the invention.
The process flow diagram of the scanning information extraction flow process that Fig. 2 provides for embodiments of the invention
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, clear, complete description is carried out to the specific embodiment of the present invention, obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiment, neither limitation of the present invention.Based on embodiments of the invention, those of ordinary skill in the art, not paying the every other embodiment obtained under creative work prerequisite, belong to protection scope of the present invention.
The embodiment of the present invention provides a kind of media library based on USB storage device to set up and update method, the method comprises file scan flow process and scanning information extracts flow process, in the present embodiment, file scan flow process and scanning information extract flow process can executed in parallel, wherein scanning information extracts flow process and mainly comprises the folder information that file scan flow process scan and obtain and media file information writes media library, particularly, folder information comprises the last modification time of file, the media file number comprised in file, the number of the non-media file comprised in file, the number of the media file comprised in the sub-folder of file, in addition, media file comprises video file, picture file and music file, non-media file refers to except video file, file beyond picture file and music file.The process flow diagram of the file scan flow process that Fig. 1 provides for the embodiment of the present invention, the process flow diagram of the scanning information extraction flow process that Fig. 2 provides for embodiments of the invention, as shown in Figure 1, this file scanning process comprises step S11 to step S20, is described in detail respectively below to above-mentioned steps.
Step S11: judge whether USB storage device accesses for the first time, if first access then performs step S14, otherwise then performs step S12.
Particularly, after USB storage device is connected with intelligent television, first judge whether USB storage device accesses for the first time, if first access then performs step S14, otherwise then perform step S12.
Step S12: traversal media library, the fileinfo corresponding according to every bar data item of media library upgrades the media file information in media library.
Step S12 comprises traversal media library, judge whether file corresponding to every bar data item of media library exists, if there is no from media library, record corresponding to this file is then deleted, judge whether fileinfo corresponding to every bar data item changes, if changed, upgrade record corresponding in media library according to fileinfo, particularly, folder list in step S12 ergodic data storehouse, video file table, music file table, picture file table, judge whether file in each file table still exists and the need of renewal, if certain file in certain file table does not exist, then delete data message corresponding to this file in a database.If the difference recorded in the creation-time of certain file in certain file table and database and the size of this file also from record in database different, the media file information indicating this file so in a database needs to upgrade and performs the media file information that media file information extraction flow process upgrades this file, otherwise direct updating file information in a database.
Step S13: carry out subregion to USB storage device, and the priority arranging each virtual partition according to the last modification time of file in virtual partition and the number of media file, proceed to after executing and perform step S16.
Particularly, step S13 carries out subregion to USB storage device and obtains each virtual partition, and the scan priority of virtual partition is set according to the last modification time of file in virtual partition and the number of media file, proceed to after step S13 executes and perform step S16.
In step S13, the method for USB storage device being carried out to subregion comprises the steps:
First optimization subregion number is set, scanning USB storage device root directory obtains first class catalogue list, the media file write media library obtained will be scanned simultaneously, optimum partition number is according to the storage size of USB storage device and arranged by storage size, in addition, also optimization subregion number can be set by user;
Finally judge whether the catalogue number in first class catalogue list is greater than optimization subregion number, if it is adopt first class catalogue as virtual partition, otherwise adopt the mode scanned step by step obtain the sub-directory at different levels of USB storage device and select catalogue number to be more than or equal to the sub-directory of optimization subregion number as virtual partition.
The method arranging the scan priority of virtual partition according to the last modification time of file in virtual partition and the number of media file in step S13 comprises the steps:
First carry out first time sequence according to the number of various media file to the priority of virtual partition, particularly, the virtual partition that video file number is many has high priority; If there is the virtual partition that video file number is identical, then, in the virtual partition that video file number is identical, the virtual partition that picture file number is many has high priority; If video file number, picture file number homogeneous phase are simultaneously, then, in the virtual partition that video file number, picture file number are all identical, the virtual partition that music file number is many has high priority;
Finally sort to carrying out second time to the priority of virtual partition according to the last modification time of file, wherein in virtual partition, the last modification time of file is more late, this virtual partition just has higher priority, if certain several virtual partition exists the identical file of last modification time, then determine the priority orders of these virtual partitions according to the result of first time sequence.
Step S14: set up media library in USB storage device.
Particularly, because USB storage device is first access, therefore in USB storage device, set up media library by step S14, wherein the file table of media library comprises video file table, music file table, picture file table and folder list.
Step S15: subregion is carried out to USB storage device, and the priority that each virtual partition is set according to the last modification time of file in virtual partition.
Subregion is carried out to USB storage device and obtains each virtual partition, the scan priority of virtual partition is set according to the last modification time of file in virtual partition, wherein in virtual partition, the last modification time of file is more late, and this virtual partition just has higher priority.
Wherein the method that USB storage device carries out subregion is comprised:
First arrange optimization subregion number, scanning USB storage device root directory obtains first class catalogue list, will scan the media file write media library obtained simultaneously;
Finally judge whether the catalogue number in first class catalogue list is greater than optimization subregion number, if whether the catalogue number in first class catalogue list is greater than optimization subregion number, then adopt first class catalogue as virtual partition, otherwise adopt the mode scanned step by step obtain the sub-directory at different levels of USB storage device and select catalogue number to be more than or equal to the sub-directory of optimization subregion number as virtual partition.
Step S16: select a virtual partition to scan according to scan priority.
Successively each virtual partition is scanned according to scan priority, after in virtual partition, certain file has been scanned, perform scanning information and extract flow process, scanning information extracts flow process and mainly comprises the folder information that file scan flow process scan and obtain and media file information writes media library, particularly, folder information comprises the last modification time of file, the media file number comprised in file, the number of the non-media file comprised in file, the number of the media file comprised in the sub-folder of file, in addition, non-media file refers to except video file, file beyond picture file and music file.When scanning each virtual partition, the embodiment of the present invention is not to add fast scan speed for the file of store media files to exit fast, adopt the continuation depth scan that fuzzy scanning strategy terminates certain file, fuzzy scanning strategy comprises particularly:
When scanning virtual partition, judge whether the file in virtual partition meets the first Rule of judgment, second Rule of judgment and the 3rd Rule of judgment, if met, marking this file is file to be scanned, wherein the first Rule of judgment is do not comprise media file in the parent folder of file, second Rule of judgment is that the catalogue progression of this file is greater than the first judgment value, 3rd Rule of judgment is that the number of non-media file in this file and the difference of sub-folder number are greater than the second judgment value, the method for solving of the first judgment value comprises: in statistics file folder virtual partition, place, media file number reduces the fastest catalogue progression, select the darkest catalogue progression as the first judgment value, the second judgment value is the mean value not comprising the file number in the file of media file in virtual partition, file place.
Step S17: check whether media library has renewal, if media library has renewal, sends update notification.
Particularly, after each virtual partition has been scanned, check whether media library has renewal, if media library has renewal, send update notification.
Step S18: judge whether that all virtual partitions are all scanned, if it is only performs step S19, otherwise then returns execution step S16.
Step S19: if system is in idle condition, then the file to be scanned marked in read step S16 from media library scans.
Particularly, in step S19, if the system that USB storage device accesses is in idle condition, then the file to be scanned marked in read step S16 from media library scans.
Step S20: check whether media library has renewal, if media library has renewal, sends update notification.
Particularly, after the step S19 end of scan, if media library has renewal, then send update notification.
As can be seen from the above embodiments, scanning process is decomposed by the embodiment of the present invention, the mode of virtual partition is utilized to scan USB storage device, user just can access without the need to waiting for that USB storage device has been completely scanned the media file added to recently in USB storage device, in the process building virtual partition, the present invention adopts the root directory of USB storage device and scans step by step, therefore, it is possible to identify the media file of USB storage device root directory fast; In addition, path without the need to scanning is rejected and is enable to exit fast in the store path of scanning process never store media files by the embodiment of the present invention in the process of scanning USB storage device, therefore the embodiment of the present invention scans from the heat source of most possible store media files, therefore scans more efficient; Finally, the scanning process of the embodiment of the present invention in different threads, can make full use of cpu resource from media file information leaching process.Therefore, the embodiment of the present invention effectively can reduce overall sweep time, enhances the Consumer's Experience in scanning process.
Claims (10)
1. the media library based on USB storage device is set up and a update method, it is characterized in that comprising file scan flow process and scanning information extraction flow process,
Described file scan flow process comprises:
Steps A 1: set up media library in USB storage device, the file table of described media library at least comprises video file table, music file table, picture file table and folder list;
Step B1: carry out subregion to USB storage device and obtain each virtual partition, arranges the scan priority of virtual partition according to the last modification time of file in virtual partition;
Step C1: scan each virtual partition successively according to scan priority, checks after each virtual partition has been scanned whether media library has renewal, if media library has renewal, sends update notification,
Described scanning information extracts flow process and comprises:
The folder information that file scan is obtained and media file information write media library.
2. the media library based on USB storage device according to claim 1 is set up and update method, also comprises before it is characterized in that described steps A 1:
Steps A 2: judge whether USB storage device accesses for the first time, if first access then performs steps A 1, otherwise then performs step B2;
Step B2: traversal media library, judge whether file corresponding to every bar data item of media library exists, if there is no from media library, record corresponding to this file is then deleted, judge whether fileinfo corresponding to every bar data item changes, if changed, upgrade record corresponding in media library according to fileinfo;
Step C2: carry out subregion to USB storage device and obtain each virtual partition, arranges the scan priority of virtual partition according to the last modification time of file in virtual partition and the number of media file, proceed to and perform step C1.
3. the media library based on USB storage device according to claim 1 and 2 is set up and update method, it is characterized in that describedly comprising the method that USB storage device carries out subregion:
Arrange optimization subregion number, scanning USB storage device root directory obtains first class catalogue list, will scan the media file write media library obtained simultaneously;
Judge whether the catalogue number in first class catalogue list is greater than optimization subregion number, if it is adopt first class catalogue as virtual partition, otherwise adopt the mode scanned step by step obtain the sub-directory at different levels of USB storage device and select catalogue number to be more than or equal to the sub-directory of optimization subregion number as virtual partition.
4. the media library based on USB storage device according to claim 3 is set up and update method, it is characterized in that described optimum partition number is according to the storage size of USB storage device with arranged by storage size.
5. the media library based on USB storage device according to claim 1 is set up and update method, it is characterized in that described step C1 is when scanning virtual partition, judge whether the file in virtual partition meets the first Rule of judgment, second Rule of judgment and the 3rd Rule of judgment, if met, marking this file is file to be scanned, described first Rule of judgment is all do not comprise media file in file and parent folder thereof, described second Rule of judgment is that the catalogue progression of this file is greater than the first judgment value, described 3rd Rule of judgment is that the number of non-media file in this file and the difference of sub-folder number are greater than the second judgment value, the method for solving of described first judgment value comprises: in statistics file folder virtual partition, place, media file number reduces the fastest catalogue progression, select the darkest catalogue progression as the first judgment value, described second judgment value is the mean value not comprising the file number in the file of media file in virtual partition, file place.
6. the media library based on USB storage device according to claim 5 is set up and update method, also comprises after it is characterized in that described step C1:
If the system that USB storage device accesses is in idle condition, then the file to be scanned marked in read step C1 from media library scans, and after the end of scan, if media library has renewal, then sends update notification.
7. the media library based on USB storage device according to claim 1 is set up and update method, it is characterized in that the method arranging the scan priority of virtual partition according to the last modification time of file in virtual partition and the number of media file in described step D2 is:
Number according to media file carries out first time sequence to the priority of virtual partition;
Last modification time according to file sorts to carrying out second time to the priority of virtual partition, if there is the identical file of last modification time, then determines the order of the virtual partition that last modification time is identical according to the result of first time sequence.
8. the media library based on USB storage device according to claim 7 is set up and update method, it is characterized in that the described number according to media file to the method that the priority of virtual partition carries out first time sequence is:
The virtual partition that video file number is many has high priority; If there is the virtual partition that video file number is identical, then, in the virtual partition that video file number is identical, the virtual partition that picture file number is many has high priority; If video file number, picture file number homogeneous phase are simultaneously, then, in the virtual partition that video file number, picture file number are all identical, the virtual partition that music file number is many has high priority.
9. the media library based on USB storage device according to claim 1 is set up and update method, it is characterized in that described media file information comprises the title of media file, path, size and modification time, described folder information comprises the number of the media file comprised in the sub-folder of the media file number comprised in the last modification time of file, file, the number of the non-media file comprised in file, file.
10. the media library based on USB storage device according to claim 1 or 5 or 7 or 8 or 9 is set up and update method, it is characterized in that described media file comprises video file, music file and picture file.
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| CN110532402A (en) * | 2018-05-25 | 2019-12-03 | 合肥杰发科技有限公司 | Multimedia scan method, intelligent terminal and the device with store function |
| CN109542848A (en) * | 2018-11-07 | 2019-03-29 | 深圳市布谷鸟科技有限公司 | A kind of vehicle-mounted media file fast scanning method and system |
| CN109542848B (en) * | 2018-11-07 | 2022-01-07 | 深圳市布谷鸟科技有限公司 | Vehicle-mounted media file rapid scanning method and system |
| CN111901685A (en) * | 2020-07-30 | 2020-11-06 | 深圳市康冠科技股份有限公司 | File scanning method and related device |
| CN111901685B (en) * | 2020-07-30 | 2023-09-08 | 深圳市康冠科技股份有限公司 | File scanning method and related device |
| CN117573214A (en) * | 2024-01-17 | 2024-02-20 | 深圳前海深蕾半导体有限公司 | Method and device for fusing serial device and Android system frame |
| CN117573214B (en) * | 2024-01-17 | 2024-04-19 | 深圳前海深蕾半导体有限公司 | Method and device for fusing serial device and Android system frame |
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