CN107360138B - Method, server and system for eliminating duplication of media file - Google Patents
Method, server and system for eliminating duplication of media file Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
Abstract
The embodiment of the invention discloses a method for eliminating duplicate files, which comprises the following steps: receiving description information of at least two media files; when detecting that the description information between the at least two media files is the same, respectively acquiring fingerprint values of the media files with the same description information; and when a media file acquisition instruction of a content playing end is received, returning a media file record comprising media file identifiers to the content playing end, wherein the media file record only records the identifier of one of the media files with the same fingerprint value. By adopting the method and the device, the files with different file names and possibly repeated contents can be filtered, only one file is reserved in the repeated files, the user is prevented from browsing repeated interference information, and the user experience is improved.
Description
Technical Field
The present invention relates to a method for eliminating duplicate, and in particular, to a method, a server, and a system for eliminating duplicate of a media file.
Background
The DLNA is called DIGITAL LIVING NETWORK ALLIANCE, and aims to enjoy music, photos and videos anytime and anywhere, and in order to solve the interconnection between wireless NETWORKs and wired NETWORKs including personal PCs, consumer electronics and mobile devices, multi-source content (such as PCs, digital televisions, digital cameras and mobile terminals) in a home is aggregated to be used for seeing content accessible in the whole home NETWORK on the interface of a playing end without paying attention to specific devices on which the content is stored, so that unlimited sharing and growth of digital media and content services are possible.
However, the current media file aggregation has the following problems: media files with the same content may be stored on the same device or on different devices, when a user browses the content of the media files at a playing end, the media files with different file names but the same actual content may be seen, and the files with repeated content are interference information for the user, so that the user experience is influenced.
Disclosure of Invention
The technical problem to be solved by the embodiments of the present invention is to provide a method for eliminating duplicate files. The duplication of media files in the household media equipment can be eliminated, and the user experience is improved.
In order to solve the foregoing technical problem, a first aspect of an embodiment of the present invention provides a method for eliminating duplicate files, including:
receiving description information of at least two media files;
when detecting that the description information between the at least two media files is the same, respectively acquiring fingerprint values of the media files with the same description information;
and when a media file acquisition instruction of a content playing end is received, returning a media file record comprising media file identifiers to the content playing end, wherein the media file record only records the identifier of one of the media files with the same fingerprint value.
With reference to the first aspect, in a first possible implementation manner, the description information of the media files includes file sizes, and when it is detected that the file sizes of the at least two media files are the same, fingerprint values of the media files with the same file sizes are respectively obtained.
With reference to the first aspect, in a second possible implementation manner, the description information of the media files includes file sizes and file types, and when it is detected that the file sizes of the at least two media files are the same and the file types are the same, fingerprint values of the media files with the same file sizes and the same file types are respectively obtained.
With reference to the first possible implementation manner of the first aspect or the second possible implementation manner of the first aspect, in a third possible implementation manner, the description information of the at least two media files is provided by a content provider, and the method further includes:
when the media files with the same fingerprint value are positioned at the same content providing end, the indication information is sent to the content providing end, so that the content providing end reserves any one of the media files with the same fingerprint value.
When media files with the same fingerprint value are located at different content providing ends and a media file acquisition instruction of a content playing end is received, returning the media file identification of any one of the media files with the same fingerprint value.
With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner, the description information of the media file is generated by a content provider scanning a local media file.
With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner, the fingerprint value of the media file is calculated by the content providing end according to the content of the local media file.
With reference to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner, the media file identifier includes:
file name, file size, creation time, update time, device to which it belongs, and file path.
A second aspect of the present invention provides a server comprising:
the file information aggregation module is used for receiving description information of at least two media files;
the fingerprint value acquisition module is used for respectively acquiring fingerprint values of the media files with the same description information when detecting that the description information between the at least two media files is the same;
and the pushing module is used for returning a media file record comprising media file identifiers to the content playing end when a media file acquisition instruction of the content playing end is received, wherein only one media file identifier is recorded for the media files with the same fingerprint value in the media file record.
With reference to the second aspect, in a first possible implementation manner, the description information of the media file includes a file size.
With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner, the method further includes:
the reservation indicating module is used for sending indicating information to the content providing end when the media files with the same fingerprint value are positioned at the same content providing end so as to enable the content providing end to reserve any one of the media files with the same fingerprint value; when media files with the same fingerprint value are located at different content providing ends and a media file acquisition instruction of a content playing end is received, returning the media file identification of any one of the media files with the same fingerprint value.
The third aspect of the present invention further provides a home media device sharing system, which includes at least one content provider, at least one content player, and any one server of the second aspect, the first possible implementation manner of the second aspect, and the second possible implementation manner of the second aspect.
In a first possible implementation form of the method,
the content providing terminal includes:
the content scanning module is used for scanning local media files and feeding back description information of the media files to the server;
and the fingerprint value calculating module is used for calculating the fingerprint value of the appointed media file and feeding the fingerprint value back to the server when receiving the acquisition instruction of the fingerprint value of the appointed media file sent by the server.
With reference to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner, the content providing end further includes:
and the content monitoring module is used for indicating the content scanner to start working when detecting that the local media file is updated.
The embodiment of the invention has the following beneficial effects:
the method of twice screening is adopted, the files with the repeated suspicion are screened out firstly, then the files with the repeated suspicion are calculated and fingerprint values are compared, the files with the repeated content and possibly different file names are filtered out, only one file is reserved in the repeated files, the situation that a user browses repeated interference information is avoided, and user experience is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flowchart illustrating a method for deduplication of a media file according to an embodiment of the present invention;
FIG. 2 is another flow chart of a method for media file deduplication in accordance with an embodiment of the present invention;
FIG. 3 is a schematic diagram of a server according to an embodiment of the present invention;
FIG. 4 is another schematic diagram of a server according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of another configuration of a server according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a home media device sharing system according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of the content side of FIG. 6;
fig. 8 is another structural diagram of a home media device sharing system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a schematic flow chart of a method for eliminating media file duplication in an embodiment of the present invention is shown, where the flow chart includes:
The media files include video files, audio files and photos, and documents in various formats (such as Doc, PPT, pdf, etc.), and the description information of at least two media files is received from the device storing the media files, where the media files may be from the same device or from different devices, and the description information of the media files includes file size, file name, and file type, and may include one or more file attribute information therein, which is not limited in the present invention.
And 102, when detecting that the description information between the at least two media files is the same, respectively acquiring the fingerprint values of the media files with the same description information.
Specifically, assuming that the description information of the preset media file is the file size, the description information of 4 media files is received in step 101, the numbers of the 4 media files are A, B, C and D, respectively, wherein the file size of the file a is 3MB, the size of the file B is 1.5MB, the size of the file C is 3MB, the size of the file D is 4MB, and when it is detected that the file sizes of the file a and the file C are the same, fingerprint values of the file a and the file C are obtained for further comparison. The description information of the file may also be other file attribute information, such as a file name, a file type, or a combination of several file attribute information, which is not limited herein.
Specifically, the media file identifier refers to file information of a media file stored on a device, and includes a file name, a file size, creation time, update time, a device to which the media file belongs, and a file path, and the media file record refers to file information of media files stored on all content providers, where, for a media file with the same fingerprint value, only an identifier of one of the media files is recorded, as in the example of step 102, if the fingerprint values of file a and file C are compared and found to be the same, only the media file identifiers of file B and file D are returned, and any one of file a and file C is selected.
By implementing the embodiment of the invention, the method of twice screening is adopted, the file with the repeat suspicion is screened out firstly, then the method of calculating the file with the repeat suspicion and comparing fingerprint values is adopted, the files with the repeat content and possibly different file names are filtered out, only one file is reserved in the repeat files, the user is prevented from browsing the repeat interference information, and the user experience is improved.
Referring to fig. 2, another schematic flow chart of a method for eliminating media file duplication in an embodiment of the present invention is shown, where the flow chart includes:
Specifically, suppose 4 media files are received, the numbers of which are E, F, G and H, the file E, the description information of the media file is predetermined as the file size and the file type, the description information of the file E is (4M, MP3 format), the description information of the file F is (2M, JPEG format), the description information of the file G is (4M, MP3 format), and the description information of the file H is (650M, RMVB format), wherein the files can be from the same media device or different media devices. The description information of the media file is generated by the content provider scanning the local media file.
Specifically, if it is detected that the description information of the file E and the file G are the same in the 4 media files received in step 201, the fingerprint values of the file E and the file G are obtained, in this embodiment, the obtaining of the fingerprint values is to send an instruction to the content providing end, a fingerprint value calculation module of the content providing end calculates the fingerprint value of the specified media file, and returns the fingerprint value, and of course, other methods may be used to obtain the fingerprint value, which is not limited in the present invention.
The process of calculating the fingerprint value consumes equipment resources very much, a method of detecting the size and the type of the file is adopted, if the size and the type of the file are the same, the suspicion that the contents of the file and the file are repeated is very large, then the fingerprint value of the media file with the suspicion is further calculated, and the calculation efficiency is improved.
Specifically, the media file identifier refers to file information of a media file stored on a device, and includes a file name, a file size, creation time, update time, a device to which the media file belongs, and a file path, and the media file record refers to file information of media files stored on all content providers, where, for a media file with the same fingerprint value, only an identifier of one of the media files is recorded, as in the example of step 202, if the fingerprint values of file E and file G are further compared and found to be the same, only the media file identifiers of file F and file H are returned, and any one of file E and file G is selected.
And step 204, when the media files with the same fingerprint value are located at the same content providing terminal, sending indication information to the content providing terminal, so that the content providing terminal retains any one of the media files with the same fingerprint value.
Specifically, as in the example of step 203, if the file E and the file G are located on the same content provider, the content provider is instructed to only reserve one of the files, and delete the rest of the files, so as to improve the utilization efficiency of the storage space.
By implementing the embodiment of the invention, the method of twice screening is adopted, the file with the repeat suspicion is screened out firstly, then the method of calculating the file with the repeat suspicion and comparing fingerprint values is adopted, the files with the repeat content and possibly different file names are filtered out, only one file is reserved in the repeat files, the user is prevented from browsing the repeat interference information, and the user experience is improved.
Referring to fig. 3, a schematic structural diagram of an embodiment of a server according to the present invention includes:
the file information aggregation module 21 is configured to receive description information of at least two media files.
Specifically, it is assumed that the file information aggregation module 21 receives 4 media files, which are numbered E, F, G and H, file E, description information of the media file is predetermined as a file size and a file type, description information of the file E is (4M, MP3 format), description information of the file F is (2M, JPEG format), description information of the file G is (4M, MP3 format), and description information of the file H is (650M, RMVB format), where the files may be from the same media device or different media devices. The description information of the media file is generated by the content provider scanning the local media file.
The fingerprint value obtaining module 22 is configured to, when it is detected that the description information between the at least two media files is the same, respectively obtain fingerprint values of the media files with the same description information.
Specifically, if the 4 media files received by the file information aggregation module 21 are detected by the fingerprint value acquisition module 22 that the description information of the file E and the description information of the file G are the same, the fingerprint values of the file E and the file G are acquired, in this embodiment, the acquisition of the fingerprint values is to send an instruction to the content providing end, calculate the fingerprint value of the specified media file by the fingerprint value calculation module of the content providing end, and return the fingerprint value to the fingerprint value acquisition module 22, although the fingerprint value acquisition module 22 may also acquire the fingerprint value by using other methods, which is not limited by the present invention.
The pushing module 23 is configured to, when a media file acquisition instruction of a content playing end is received, return a media file record including a media file identifier to the content playing end, where only one identifier of one of the media files is recorded for media files with the same fingerprint value in the media file record.
Specifically, the media file identifier refers to file information of a media file stored on a device, and includes a file name, a file size, creation time, update time, a device to which the media file belongs, and a file path, and the media file record refers to file information of media files stored on all content providers, where, for a media file with the same fingerprint value, only an identifier of one of the media files is recorded, as in the above example, if the push module 23 further compares the fingerprint values of the file E and the file G and finds that the fingerprint values of the two are also the same, the push module 23 returns only the media file identifier of the file F and the file H, and any one of the file E and the file G is selected.
By implementing the embodiment of the invention, the method of twice screening is adopted, the file with the repeat suspicion is screened out firstly, then the method of calculating the file with the repeat suspicion and comparing fingerprint values is adopted, the files with the repeat content and possibly different file names are filtered out, only one file is reserved in the repeat files, the user is prevented from browsing the repeat interference information, and the user experience is improved.
Referring to fig. 4, another schematic structural diagram of a server according to an embodiment of the present invention also includes a file information aggregation module 21, a fingerprint value obtaining module 22, and a pushing module 23, and in addition, includes a reservation indicating module 24, configured to send, when media files with the same fingerprint value are located at the same content providing end, indicating information to the content providing end, so that the content providing end reserves any one of the media files with the same fingerprint value, and when media files with the same fingerprint value are located at different content providing ends and a media file obtaining instruction of a content playing end is received, a media file identifier of any one of the media files with the same fingerprint value is returned.
Specifically, if the fingerprint values of the file E and the file G are the same and are located on the same content provider, the reservation indicating module 24 indicates that the content provider only reserves one of the files, and deletes the remaining files, thereby improving the utilization efficiency of the storage space of the content provider.
When the content playing end browses the media files according to the whole equipment, namely all the content providing ends are used as one equipment to browse, the server returns the media file identification of any one of the media files with the same fingerprint value to the content providing ends; when the content playing end browses media files according to a single device, if three content providing ends of a device A, a device B and a device C exist, and files with the same fingerprint value exist among different devices, filtering processing is not performed, for example, when the same media files exist between the device A and the device B, and the content playing end browses the device A or the device B independently, filtering processing is not performed.
Referring to fig. 5, a schematic diagram of another structure of a server according to the present invention includes:
the processor 61, the memory 62, the output device 63, and the input device 64 may be connected by a bus or other means in some embodiments of the present invention, wherein fig. 5 takes the bus connection as an example.
Wherein, the processor 61 calls the program stored in the memory 62, and executes the following steps:
receiving description information of at least two media files; when detecting that the description information between the at least two media files is the same, respectively acquiring fingerprint values of the media files with the same description information; and when a media file acquisition instruction of a content playing end is received, returning a media file record comprising media file identifiers to the content playing end, wherein the media file record only records the identifier of one of the media files with the same fingerprint value.
In some embodiments of the present invention, the description information of the media files includes a file size and a file type, and the processor 61 obtains fingerprint values of the media files with the same file size and the same file type respectively when detecting that the file sizes and the file types of the at least two media files are the same.
In other embodiments of the present invention, processor 61 is further configured to perform the steps of:
when the media files with the same fingerprint value are positioned at the same content providing end, the indication information is sent to the content providing end, so that the content providing end reserves any one of the media files with the same fingerprint value.
By implementing the embodiment of the invention, the method of twice screening is adopted, the file with the repeat suspicion is screened out firstly, then the method of calculating the file with the repeat suspicion and comparing fingerprint values is adopted, the files with the repeat content and possibly different file names are filtered out, only one file is reserved in the repeat files, the user is prevented from browsing the repeat interference information, and the user experience is improved.
Referring to fig. 6-8, schematic structural diagrams of a home media device sharing system implemented by the present invention include:
the system comprises a content playing terminal 1, a server 2 and a content providing terminal 3, wherein the server 2 receives description information of at least two media files fed back by the content providing terminal; when detecting that the description information between the at least two media files is the same, the server 2 respectively acquires the fingerprint values of the media files with the same description information; when receiving a media file acquisition instruction of the content playing terminal 1, the server 2 returns a media file record including media file identifiers to the content playing terminal 1, wherein only one of the media file identifiers is recorded for media files with the same fingerprint value in the media file record. The content provider may be a plurality of content providers, such as content provider 41, content provider 42, …, content provider 4N shown in fig. 8, and the server 2 further provides a third party application program interface for browsing, querying and searching to the content player.
The above embodiment is not described again, wherein in the present embodiment, the content providing end includes:
the content scanning module 31 is configured to scan a local media file, and feed back description information of the media file to the server.
And the fingerprint value calculating module 32 is configured to calculate a fingerprint value of the specified media file and feed the calculated fingerprint value back to the server when receiving an instruction for acquiring the fingerprint value of the specified media file sent by the server.
The content monitoring module 33 instructs the content scanner 31 to start working when detecting that the local media file is updated.
By implementing the embodiment of the invention, the method of twice screening is adopted, the file with the repeat suspicion is screened out firstly, then the method of calculating the file with the repeat suspicion and comparing fingerprint values is adopted, the files with the repeat content and possibly different file names are filtered out, only one file is reserved in the repeat files, the user is prevented from browsing the repeat interference information, and the user experience is improved.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (15)
1. A method for deduplication of a media file, comprising:
receiving description information of at least two media files;
when detecting that the description information between the at least two media files is the same, respectively acquiring fingerprint values of the media files with the same description information; wherein the at least two media files originate from the same content provider or different content providers;
when a media file acquisition instruction of a content playing end is received, returning a media file record comprising media file identifiers to the content playing end, wherein the media file record only records the identifier of one media file for the media files with the same fingerprint value;
wherein the description information of the at least two media files is provided by a content provider, the method further comprising:
when media files with the same fingerprint value are located at different content providing ends and a media file acquisition instruction of a content playing end is received, returning the media file identification of any one of the media files with the same fingerprint value.
2. The method according to claim 1, wherein the description information of the media files includes file sizes, and when it is detected that the file sizes of the at least two media files are the same, fingerprint values of the media files having the same file sizes are respectively obtained.
3. The method of claim 1, wherein the description information of the media files comprises file sizes and file types, and when it is detected that the file sizes and the file types of the at least two media files are the same, fingerprint values of the media files with the same file sizes and the same file types are respectively obtained.
4. A method according to claim 2 or 3, wherein the description information of the at least two media files is provided by a content provider, the method further comprising:
when the media files with the same fingerprint value are positioned at the same content providing end, the indication information is sent to the content providing end, so that the content providing end reserves any one of the media files with the same fingerprint value.
5. The method of claim 4, wherein the description information of the media file is generated by a content provider scanning a local media file.
6. The method of claim 5, wherein the fingerprint value of the media file is calculated by the content provider based on the content of the local media file.
7. The method of claim 6, wherein the media file identification comprises:
file name, file size, creation time, update time, device to which it belongs, and file path.
8. A server, comprising:
the file information aggregation module is used for receiving description information of at least two media files;
the fingerprint value acquisition module is used for respectively acquiring fingerprint values of the media files with the same description information when detecting that the description information between the at least two media files is the same; wherein the at least two media files originate from the same content provider or different content providers;
the push module is used for returning a media file record comprising media file identifiers to a content playing end when a media file acquisition instruction of the content playing end is received, wherein only one media file identifier is recorded for media files with the same fingerprint value in the media file record;
and the reservation indicating module is used for returning the media file identifier of any one of the media files with the same fingerprint value when receiving a media file acquisition instruction of the content playing end when the media files with the same fingerprint value are positioned at different content providing ends.
9. The server of claim 8, wherein the description information of the media file includes a file size.
10. The server according to claim 8 or 9,
the reservation indicating module is further configured to send indicating information to the content providing end when the media files with the same fingerprint value are located at the same content providing end, so that the content providing end reserves any one of the media files with the same fingerprint value.
11. A home media device sharing system comprising at least one content provider, at least one content player and a server according to any one of claims 8-10.
12. The sharing system according to claim 11, wherein the content provider includes:
the content scanning module is used for scanning local media files and feeding back description information of the media files to the server;
and the fingerprint value calculating module is used for calculating the fingerprint value of the appointed media file and feeding the fingerprint value back to the server when receiving the acquisition instruction of the fingerprint value of the appointed media file sent by the server.
13. The sharing system according to claim 11 or 12, wherein the content provider further comprises:
and the content monitoring module is used for indicating the content scanner to start working when detecting that the local media file is updated.
14. A computer-readable storage medium, characterized in that it stores a computer program which, when executed by hardware, is capable of implementing the method of any one of claims 1 to 7.
15. A server, comprising a processor and a memory;
wherein the processor invokes a program stored in memory to perform the method of any of claims 1 to 7.
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| CN201210356715.1A CN103685420B (en) | 2012-09-24 | 2012-09-24 | A kind of method of media file duplication removal, server and system |
| CN201710459564.5A CN107360138B (en) | 2012-09-24 | 2012-09-24 | Method, server and system for eliminating duplication of media file |
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| CN104636477B (en) * | 2015-02-15 | 2017-11-24 | 山东卓创资讯股份有限公司 | The De-weight method of push list before a kind of information push |
| CN105872730A (en) * | 2015-11-23 | 2016-08-17 | 乐视网信息技术（北京）股份有限公司 | Subtitle data fusion method and device |
| CN105787130B (en) * | 2016-03-30 | 2019-09-27 | 北京金山安全软件有限公司 | Picture cleaning method and device and mobile terminal |
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| CN103685420A (en) | 2014-03-26 |
| CN107426183A (en) | 2017-12-01 |
| CN107426183B (en) | 2021-02-09 |
| CN107360138A (en) | 2017-11-17 |
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