CN101903904A - Method for generating and consuming a file and apparatus thereof and computer readable medium - Google Patents

Method for generating and consuming a file and apparatus thereof and computer readable medium Download PDF

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Publication number
CN101903904A
CN101903904A CN2008801212490A CN200880121249A CN101903904A CN 101903904 A CN101903904 A CN 101903904A CN 2008801212490 A CN2008801212490 A CN 2008801212490A CN 200880121249 A CN200880121249 A CN 200880121249A CN 101903904 A CN101903904 A CN 101903904A
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content
file
information
positional information
metadata
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金晖容
林成勇
李汉奎
洪镇佑
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Electronics and Telecommunications Research Institute ETRI
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    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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    • G—PHYSICS
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    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F40/00—Handling natural language data
    • G06F40/10—Text processing
    • G06F40/103—Formatting, i.e. changing of presentation of documents
    • G06F40/114—Pagination
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F40/00—Handling natural language data
    • G06F40/10—Text processing
    • G06F40/103—Formatting, i.e. changing of presentation of documents
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    • G06—COMPUTING; CALCULATING OR COUNTING
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    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
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    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/448—Execution paradigms, e.g. implementations of programming paradigms
    • G06F9/4494—Execution paradigms, e.g. implementations of programming paradigms data driven
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/451—Execution arrangements for user interfaces
    • G06F9/453—Help systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/84—Generation or processing of descriptive data, e.g. content descriptors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/85—Assembly of content; Generation of multimedia applications
    • H04N21/854—Content authoring
    • H04N21/85406—Content authoring involving a specific file format, e.g. MP4 format

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Abstract

Provided are file generating and consuming methods and apparatuses, and a computer-readable recording medium. The method for generating a file includes: generating matching relationship information between a content identifier of a content and location information of the content; and generating a file including metadata for the content and the matching relationship information.

Description

Be used to generate and consume the method for file and equipment thereof, and computer-readable medium
Technical field
The present invention relates to a kind of method that is used to generate and consume file and equipment thereof, and computer-readable medium.
This work obtains the IT R﹠amp of MIC/IITA; The support of D project [2006-S-082-02, " Development ofDigital Multimedia Broadcasting Technology for Personalized Broadcasting "].
Background technology
According to conventional art, when the metadata of using content designator (ID) was stored with content, the finger URL that can find the location of content in the file should be searched and be converted to the content designator of each metadata individually.Here it is is used for situation such as the file layout of International Organization for Standardization file as the content designator of TV-Anytime.
Utilize conventional art, when the location of content in the file does not accurately calculate or when location of content changed, metadata should be upgraded.This is inconvenient.And, under the content designator such as identifier content reference identifiers (CRID) should be used for situation as the metadata standard of the metadata proposal of TV-Anytime, exist the metadata document can not under the situation of not violating the framework grammer, store hereof problem.
Summary of the invention
Technical matters
In order to overcome the problem of conventional art, when metadata store hereof the time, the present invention stores the positional information of content and the matching relationship information between the content designator hereof together.
Other purpose of the present invention and advantage can be understood by following description, and can become clear with reference to the embodiment of the invention.And, it will be apparent to one skilled in the art that objects and advantages of the present invention can realize by means required for protection and combination thereof.
Technical scheme
According to an aspect of the present invention, provide a kind of method that is used for spanned file, comprising: the matching relationship information between the content designator of generation content and the positional information of content; And the file that generates the metadata and the matching relationship information that comprise content.
According to another aspect of the present invention, provide a kind of equipment that is used for spanned file, comprising: information generator, the matching relationship information between the content designator of generation content and the positional information of content; And the file generator, generation comprises the file of the metadata and the matching relationship information of content.
According to another aspect of the present invention, provide a kind of method that is used to consume file, comprising: from the content designator of the metadata selected content of content; Matching relationship information between the content designator by using content and the positional information of content is obtained the positional information with the corresponding content of content designator; And position-based information obtains content, and wherein, metadata and matching relationship information comprise hereof.
According to another aspect of the present invention, a kind of equipment that is used to consume file is provided, comprise: the determining positions unit, be used for from the content designator of the metadata selected content of content, and the matching relationship information between the positional information of content designator by using content and content is obtained the positional information of the content corresponding with content designator; And the content acquiring unit, be used for position-based information and obtain content, wherein, metadata and matching relationship information comprise hereof.
According to another aspect of the present invention, a kind of computer readable recording medium storing program for performing is provided, it defines the form that comprises about the file of the matching relationship information between the positional information of the content designator of the metadata of content and content and content with generating, and storage can be obtained the file of the content corresponding with content designator based on matching relationship information.
By illustrate thereafter with reference to the accompanying drawings for the following description of embodiment, it is clear that advantage of the present invention, feature and aspect will become.Correspondingly, technical conceive of the present invention can easily be implemented by the those of ordinary skill of the technical field under the present invention.And, consider about the detailed description of correlation technique and may cover main points of the present invention, therefore will not provide this description at this.Below, will be described in detail with reference to the attached drawings specific embodiments of the invention.
Beneficial effect
Technology of the present invention can be carried out processing separated from one another to creating (authoring) metadata and spanned file.
And when the position change of content, technology of the present invention can be under the situation of update metadata be not dealt with this change by modification table simply.
Description of drawings
Fig. 1 is the block diagram that illustrates according to the processing of the file format structure of the embodiment of the invention and generation and consumption file.
Fig. 2 exemplarily illustrates the information to file handler (handler) transmission according to the embodiment of the invention.
Fig. 3 illustration according to the information in the matching relationship information of being included in of the embodiment of the invention.
Embodiment
Below, will be described in detail with reference to the attached drawings specific embodiments of the invention.
In specific embodiments of the invention, when the metadata of content and this content was stored hereof together, matching relationship information was stored in this document together.Matching relationship information is the information that the content designator of the content that will store matches the finger URL of the content that is used for locating file.Comprise that hereof matching relationship information is used for the position is defined as storing the position of content hereof.This is called determining positions.Therefore, may visit content in the file by using content designator.
Yet even when content is not stored hereof, the matching relationship information in the file also can comprise the current location information of the content corresponding with content designator.Therefore, the invention is not restricted to content and store hereof situation together.
In an embodiment of the present invention, suppose that file layout is an International Organization for Standardization base medium file layout, metadata is the TV-Anytime metadata, and the content designator that uses in the TV-Anytime metadata is CRID.
At first, will the key concept of ISO base medium file layout be described briefly.ISO base medium file is formed by the object that is called case (box), and all data are described in case.The case object comprises dimension information and type information.Size represents to be included in the size of the data in the case with byte number.The case identifier that the type representative is formed by four letters.Therefore, may easily search for the position of the case that comprises expectation information by dimension information and type information.Case comprises moov case and mdat case.Moov case and mdat case comprise metadata and media data respectively.Metadata does not comprise media data, and is used for describing with reference to it.
ISO base medium file comprises moov class molding box with the metadata that is used for Media Stream and the mdat class molding box with physical medium data.ISO base medium file layout defines track and sample.The time flow of track presentation medium, and it is formed by sample and sample description.Sample is represented the junior unit such as frame of video.How decoded sample describe to limit will information about sample.The kind of track is divided into track of video, audio track, reaches hint track (hint track).Track of video and audio track comprise the metadata that is used for video and audio frequency respectively.The hint track describe about when ISO base medium file is carried out fluidisation by fluidisation (streaming) agreement, how the fluidisation server is will be to video and audio samples execution fluidisation or encapsulated information.When recovering video and audio samples, can ignore the hint track.
Fig. 1 is the block diagram that illustrates according to the processing of the file format structure of the embodiment of the invention and generation and consumption file.With reference to figure 1, resource res1 101 and res2 102 and metadata 103 that gatherer 104 is collected constitution content.The resource 101 that gatherer 104 is collected and 102 and metadata 103 input to file handler 105.Metadata 103 can be represented with extend markup language (XML).
In Fig. 1, when resource 101 and 102 and metadata 103 when being passed to file handler 105, sent the operation of supplementary document processor 105 together as the URL(uniform resource locator) (URL) of the position of the identifier content reference identifiers (CRID) of content designator and expression memory contents.
Be sent to file handler 105 resource 101 and 102 and metadata 103 be stored in respectively in " mdat " case (not shown) of ISO base medium file layout and " xml " case 108.At this, the matching relationship information between the byte location of file handler 105 generation content designator CRID and item identifier, track identifier or resource (as content), as shown in Figure 3.And, its can generate content designator CRID and the expression content location URL between matching relationship information.In the case, URL can comprise the information about WWW (Web) address.
Matching relationship information can generate in the information generator of file generation device.The matching relationship information that is generated is stored in " crid " case 107.Matching relationship information can form with the form of the matching list of the relation between the byte location that CRID, item identifier, track identifier or resource (as content) is shown.When matching relationship information generated between CRID and item identifier or track identifier, the position of resource was indicated indirectly.When matching relationship information generated between the byte location of CRID and resource (as content), the position of resource was directly indicated.
File handler 105 generate comprise " xml " case 108 of metadata 103 and comprise the resource that content and content comprised 101 described by metadata 103 and " crid " case 107 of 102, as a file 106, and storage and management this document 106.The file generator of file generation device can spanned file 106.File generation device can be terminal or server, and the file 106 that is generated can be stored in terminal or the server and by its management.Information in " crid " case 107 can be sent to determining positions service entities 113 based on TV-Anytime.Information in " xml " case 108 can be sent to metadata service entities 112 and be used for the consumption of file 106.
When the resource 101 and 102 that comprises in interior perhaps this content was arranged in file 106, file 106 can comprise " crid " case 107 with matching relationship information and " xml " case 108 with metadata, as mentioned above.This document can generate by the processing of encapsulation " crid " case 107 and " xml " case 108.The file 106 that is generated can be stored in terminal or the server and by its management.
Be the example sentence structure that can be stored in " crid " case 107 below.
aligned(8)class?CridBox?extends?Box(‘uuid’，‘crid’){
int?i；
unsigned?int(16)item_count；
unsigned?int(16)track_count；
for(i＝0；i＜item_count；i++){
Unsigned int (16) item_ID; // the item_ID related with CRID
Unsigned int (16) str_len; The byte length of //CRID string
Byte[str_len] CRID_string; //CRID string
}
for(i＝0；i＜track_count；i++){
Unsigned int (32) track_ID; // the track_ID related with CRID
Unsigned int (16) str_len; The byte length of //CRID string
Byte[str_len] CRID_string; //CRID string
}
}
At this, the item_ID (item id) that item_count (item count) indicates to store to the number of CRID, and the track_ID that track_count (track counting) indicates to store (track ID) to the number of CRID.And str_len (string length) specifies the byte length of CRID string.CRID_string (CRID string) specifies the CRID string of actual storage.In addition, item_ID is the value of the item_ID relevant with its paired CRID string, and track_ID goes here and there the value of relevant track_ID with its paired CRID.
To the consumption of the file 106 that generated be described thereafter.
At first, the user obtains the metadata that is included in " xml " case 108, and selects the content designator (CRID) (seeing 109) of expectation.At this, the information in " xml " case 108 is sent to metadata service entities 112 based on TV-Anytime, and the user obtains metadata based on TV-Anytime from metadata service entities 112, and selects the content designator of expectation.Metadata service entities 112 based on TV-Anytime can be included in the terminal or server of spanned file 106, and perhaps it can be by independent Object Management group.
Selected content designator is converted to the finger URL (seeing 111) of the position of the resource that comprises in instruction content or this content.The matching relationship information that the finger URL of the position of indexed resource can be included in by use in " crid " case 107 is obtained or is changed.And, the information in " crid " case 107 based on TV-Anytime and indication with corresponding by the content designator selected of use matching relationship information in the finger URL of position of the resource that perhaps comprises in this content be sent to determining positions service entities 113.Finger URL can be expressed as unified resource identifier (URI) generally, but can use scheme such as motion picture expert group (MPEG) 21 parts 17 fragment identification schemes to identify to be present in a plurality of in the file 106 perhaps resource.Determining positions is implemented in the determining positions unit of file consumer device.
The finger URL that is obtained comprises actual physical location information, such as the position of file 106, item identifier (item_ID), track identifier (track_ID) or with file 106 in the corresponding byte location of particular content.The user can visit particular content or resource (seeing 110) in the file 106 by using this information.By using the finger URL obtained to come in the acquiring unit of the position of file consumer device, to carry out to the visit that particular content or resource are carried out.The file consumer device is the device that is used for content of consumption, such as terminal.
Example for a use, when the user wants to check description just during the information at the medium shown in digital multimedia broadcasting application format (DMB-AF) player, the CRID of player search and media track or item association in " crid " of DMB-AF file case 107.Player searches TV-Anytime metadata, and the demonstration description relevant with CRID.
When use was included in TV-Anytime metadata in the DMB-AF file, player proposed content description to the user, and the user browses metadata by the graphical user interface (GUI) of using player, and selected this user to want the content of consuming.Player searches " crid " case is found out item identifier or the track identifier relevant with the CRID of selected content.
The method of the invention described above can be embodied as program and be stored in the computer readable recording medium storing program for performing such as CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optic disk or the like.Because described processing can easily be realized by the technician of the technical field of the invention, therefore will not provide further description at this.
Although described the present invention at specific embodiment, it is evident that for those skilled in the art, under the situation of the spirit and scope of the present invention that do not depart from claims and limited, can carry out various changes and modification.
Pattern of the present invention
Below description only illustration principle of the present invention.Even clearly do not describe in this manual or illustrate them, those skilled in the art still can implement principle of the present invention and invention various device within design of the present invention and scope.The use of the conventional term that presents in this instructions and embodiment only are intended to make design of the present invention to be understood, but embodiment that they are not limited to mention in this instructions and condition.
And, principle of the present invention, viewpoint and embodiment and specific embodiment have a detailed description equivalent on the 26S Proteasome Structure and Function that should be understood to comprise them.This equivalent not only comprises current known equivalent, and comprises those equivalents that will develop in the future, that is, all devices of inventing in order to carry out identical function, no matter and their structure how.
For example, block diagram of the present invention should be understood to illustrate the conceptual viewpoint of the exemplary circuit that embodies the principle of the invention.Similarly, all process flow diagrams, state transition diagram, false code or the like can show in fact in the computer-readable medium, and no matter whether describe computing machine or processor distinctively, they should be understood to show computing machine or the operated various processing of processor.
Comprise that the hardware that the function of illustrated various device in the accompanying drawing of the functional block that is expressed as processor or similar notion can be not only be exclusively used in this function by use provides, but also can provide by using the hardware that can move about the suitable software of this function.When function was provided by processor, this function can be provided by a plurality of individual processor that single application specific processor, single shared processing device or its part can be shared.
The obvious use of term " processor ", " control " or similar notion is not appreciated that exclusively the hardware that expression can operating software, but should be interpreted as ROM, RAM and the nonvolatile memory that comprises digital signal processor (DSP), hardware and be used for storing software jointly.Other hardware known and common use also can be included in wherein.
In the claim of this instructions, the element that shows as the parts that are used for carrying out the function of describing in detailed description is intended to comprise all methods that are used to carry out the function that comprises all format software, such as the combination of the circuit that is used to carry out expectation function, firmware/microcode or the like.
In order to carry out expectation function, element is cooperated with the proper circuit that is used to carry out this software.What be defined by the claims the present invention includes the different parts that are used to carry out specific function, and these parts are connected to each other according to the method for being asked in the claim.Therefore, can provide any parts of these functions to should be understood to and the parts equivalence that envisions from this instructions.
According to following detailed description, the purpose of the invention described above, feature and advantage can be apparent.Correspondingly, those skilled in the art in the invention can easily realize technical conceive of the present invention.And, will not provide its description when considering may cover of the present invention will putting about the detailed description of correlation technique the time.Below, will be described in detail with reference to the attached drawings the present invention.
According to the present invention, when the metadata store of the content designator (ID) that uses content hereof the time, matching relationship information between the positional information of content designator and content is stored hereof together, to notify the content designator that uses in the metadata and the position of memory contents wherein directly or indirectly.In the case, file comprises metadata and matching relationship information.Content can comprise resource, and this matching relationship information can comprise finger URL.Metadata and matching relationship information can be generated as file by encapsulation process.Matching relationship information comprises the content designator of mapping table form and the positional information of content.
Therebetween, when the metadata of using content designator is stored hereof with content, the matching relationship information that has about the information of the relation between the positional information of content designator and content is stored hereof, to notify the content designator that uses in the metadata and the position of memory contents wherein directly or indirectly.In the case, file comprises content, metadata, reaches matching relationship information.
The present invention can be applied to by using URI to identify the general metadata of content.The metadata of mentioning in this instructions comprises the metadata of using in TV-Anytime, the statement of MPEG-21 numeric item (DID), right express language (REL), intellectual property right management and protection (IPMP) etc.
Below, will be according to the present invention structure, the file of description file format generate, and file consumption.
The structure of＜file layout 〉
Computer readable recording medium storing program for performing of the present invention defines the form that comprises about the file of the matching relationship information between the positional information of the content designator of the metadata of content and content and content with generating, and storage can be obtained file with the corresponding content of content designator based on matching relationship information.This document can generate by the method for using package metadata and matching relationship information.Content can comprise resource, and metadata can comprise content designator.Content designator can be identifier content reference identifiers (CRID) or universal unique identifier (UUID).In the time of outside content is positioned at file, file comprises metadata and matching relationship information.Matching relationship information according to projected forms storage about content designator and with the information of the positional information of the corresponding content of content designator.At this, the positional information of content can comprise the current location information of content, and it can be with the form storage of URL(uniform resource locator) (URL).
If matching relationship information is stored hereof with the metadata of content, then can omit individually the processing of seeking the content designator that is present in the metadata and content designator being converted to the finger URL that its form can identify hereof.And even the position change of content, method of the present invention still can be dealt with change by modification table simply, and this has abandoned the difficulty of update metadata one by one.
File may further include content.In the case, use with content, metadata, and the matching relationship information method that is packaged into a file generate file.Positional information can comprise the item identifier (item_ID) or the track identifier (track_ID) of the ISO base medium file layout of content.Under the situation of using item identifier (item_ID) or track identifier (track_ID), can identify the position of content indirectly.
When file comprised content, positional information can comprise the byte position information of content.Use byte position information to come the position of the interior perhaps resource that comprises in the identification document directly.Byte position information can comprise the offset information of the reference position that is used to specify corresponding content or resource and be used to specify apart from the length information of the length of reference position.
Therefore, may with meet the framework grammer the metadata document, store hereof with meeting the content that content designator should be used for the metadata standard of metadata proposal.
The matching relationship information storage comprises the mapping table of content designator and item identifier, track identifier or byte position information.
The generation of＜file 〉
Document generating method of the present invention comprises: the matching relationship information between the content designator of generation content and the positional information of content, and the file that generates the metadata and the matching relationship information that comprise content.At this, positional information can comprise the current location information of content.
Therebetween, file may further include content.In the case, positional information can comprise the item identifier or the track identifier of the ISO base medium file layout that is used for content.And positional information can comprise the byte position information of content.
The generation of file can be carried out in terminal or server.
File generation device of the present invention comprises: information generator is used to generate the matching relationship information between the positional information of the content designator of content and content; And the file generator, be used to generate the metadata that comprises content and the file of matching relationship information.At this, positional information can comprise the current location information of content.
Therebetween, file may further include content.In the case, positional information can comprise the item identifier or the track identifier of the ISO base medium file layout that is used for content.And positional information can comprise the byte position information of content.
Because the details relevant with the generation of file is in the structure of＜file layout〉explain in the part, therefore will they not described at this.
The consumption of＜file 〉
File consuming method of the present invention comprises: from the content designator of the metadata selected content of content, matching relationship information between the content designator by using content and the positional information of content is obtained the positional information with the corresponding content of content designator, and obtains content based on this positional information.Metadata and matching relationship information comprise hereof.At this, positional information can comprise the current location information of content.
Therebetween, file may further include content.Sign comprises that the method (such as MPEG-21 part 17 fragment identification schemes) of content hereof can be used to obtain the positional information of content.In the case, positional information can comprise the item identifier or the track identifier of the ISO base medium file layout that is used for content.And positional information can comprise the byte position information of content.
File consumer device of the present invention comprises: the determining positions unit, be used for from the content designator of the metadata selected content of content, and the matching relationship information between the positional information of content designator by using content and content is obtained the positional information with the corresponding content of content designator; And the content acquiring unit, be used for obtaining content based on this positional information.Metadata and matching relationship information comprise hereof.At this, positional information can comprise the current location information of content.
Therebetween, file may further include content.Sign comprises that the method (such as MPEG-21 part 17 fragment identification schemes) of content hereof can be used to obtain the positional information of content.In the case, positional information can comprise the item identifier or the track identifier of the ISO base medium file layout that is used for content.And positional information can comprise the byte position information of content.
Because the details relevant with the consumption of file is in the structure of＜file layout〉explain in the part, therefore will they not described at this.
Industrial applicibility
The present invention is used for can be by coming generation and the consumption of the file of Detection of content position with the metadata of using content designator.

Claims (25)

1. method that is used for spanned file comprises:
Matching relationship information between the content designator of generation content and the positional information of content; And
Generation comprises the file of metadata He this matching relationship information of this content.
2. the method for claim 1, wherein said positional information comprises the current location information of this content.
3. the method for claim 1, wherein this document also comprises this content.
4. method as claimed in claim 3, wherein this positional information comprises the item identifier or the track identifier of the International Organization for Standardization base medium file layout that is used for this content.
5. method as claimed in claim 3, wherein said positional information comprises the byte position information of this content.
6. equipment that is used for spanned file comprises:
Information generator is used to generate the matching relationship information between the positional information of the content designator of content and content; And
The file generator is used to generate the file of the metadata that comprises this content and this matching relationship information.
7. method as claimed in claim 6, wherein this positional information comprises the current location information of this content.
8. method as claimed in claim 6, wherein this document also comprises this content.
9. method as claimed in claim 8, wherein said positional information comprise the item identifier or the track identifier of the International Organization for Standardization base medium file layout that is used for this content.
10. method as claimed in claim 8, wherein said positional information comprises the byte position information of this content.
11. a method that is used to consume file comprises:
Content designator from the metadata selected content of content;
Matching relationship information between the content designator by using this content and the positional information of this content is obtained the positional information with the corresponding content of content designator; And
Obtain content based on this positional information,
Wherein, this metadata and this matching relationship information are included in the file.
12. method as claimed in claim 11, wherein said positional information comprises the current location information of this content.
13. method as claimed in claim 11, wherein this document also comprises this content, and
Use is used to identify the positional information that the method that comprises content is hereof obtained this content.
14. method as claimed in claim 13, wherein said positional information comprise the item identifier or the track identifier of the International Organization for Standardization base medium file layout that is used for this content.
15. method as claimed in claim 13, wherein said positional information comprises the byte position information of this content.
16. an equipment that is used to consume file comprises:
The determining positions unit, be used for from the content designator of this content of metadata selected of content, and the matching relationship information between the positional information of the content designator by using this content and this content is obtained the positional information with the corresponding content of this content designator; And
The content acquiring unit is used for obtaining content based on this positional information,
Wherein, this metadata and this matching relationship information comprise hereof.
17. equipment as claimed in claim 16, wherein said positional information comprises the current location information of this content.
18. equipment as claimed in claim 16, wherein this document also comprises this content, and
Described determining positions unit is used for identifying the method for the content that this document comprises.
19. equipment as claimed in claim 18, wherein said positional information comprise the item identifier or the track identifier of the International Organization for Standardization base medium file layout that is used for this content.
20. equipment as claimed in claim 18, wherein said positional information comprises the byte position information of content.
21. computer readable recording medium storing program for performing, it defines the form that comprises about the file of the matching relationship information between the positional information of the content designator of the metadata of content and content and content with generating, and storage can be obtained file with the corresponding content of content designator based on this matching relationship information.
22. computer readable recording medium storing program for performing as claimed in claim 21, wherein said positional information comprises the current location information of this content.
23. computer readable recording medium storing program for performing as claimed in claim 21, wherein this document also comprises this content.
24. computer readable recording medium storing program for performing as claimed in claim 21, wherein said positional information comprise the item identifier or the track identifier of the International Organization for Standardization base medium file layout that is used for content.
25. computer readable recording medium storing program for performing as claimed in claim 21, wherein said positional information comprises the byte position information of this content.
CN2008801212490A 2007-10-16 2008-10-02 Method for generating and consuming a file and apparatus thereof and computer readable medium Pending CN101903904A (en)

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KR1020080095540A KR101601851B1 (en) 2007-10-16 2008-09-29 Method for Generating and Consuming a File and Apparatus thereof
KR10-2008-0095540 2008-09-29
PCT/KR2008/005811 WO2009051360A1 (en) 2007-10-16 2008-10-02 Method for generating and consuming a file and apparatus thereof and computer readable medium

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US6912514B2 (en) * 1999-12-03 2005-06-28 Matsushita Electric Industrial Co., Ltd. Content distribution system and a reference server
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Application publication date: 20101201