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WO2009051360A1 - Procédé de création et d'utilisation d'un fichier, appareil correspondant et support lisible par ordinateur - Google Patents

Procédé de création et d'utilisation d'un fichier, appareil correspondant et support lisible par ordinateur Download PDF

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Publication number
WO2009051360A1
WO2009051360A1 PCT/KR2008/005811 KR2008005811W WO2009051360A1 WO 2009051360 A1 WO2009051360 A1 WO 2009051360A1 KR 2008005811 W KR2008005811 W KR 2008005811W WO 2009051360 A1 WO2009051360 A1 WO 2009051360A1
Authority
WO
WIPO (PCT)
Prior art keywords
content
file
location information
identifier
metadata
Prior art date
Application number
PCT/KR2008/005811
Other languages
English (en)
Inventor
Hui-Young Kim
Seong-Yong Lim
Han-Kyu Lee
Jinwoo Hong
Original Assignee
Electronics And Telecommunications Research Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Electronics And Telecommunications Research Institute filed Critical Electronics And Telecommunications Research Institute
Priority to EP08840458A priority Critical patent/EP2212855A4/fr
Priority to CN2008801212490A priority patent/CN101903904A/zh
Publication of WO2009051360A1 publication Critical patent/WO2009051360A1/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06Q30/00—Commerce
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; 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
    • G06F40/117—Tagging; Marking up; Designating a block; Setting of attributes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F9/448—Execution paradigms, e.g. implementations of programming paradigms
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F9/448—Execution paradigms, e.g. implementations of programming paradigms
    • G06F9/4494—Execution paradigms, e.g. implementations of programming paradigms data driven
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; 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

Definitions

  • the present invention relates to methods for generating and consuming a file, apparatuses therefor, and a computer-readable recording medium.
  • a content identifier of each metadata should be sought for individually and transformed into a locator capable of finding the location of the content within a file, when metadata using a content identifier (ID) are stored with contents.
  • ID content identifier
  • Metadata should be updated when the location of the content within a file is not accurately figured out or whenever the location of a content changes. This is inconvenient.
  • a content identifier such as contents reference identifier (CRID)
  • CRID contents reference identifier
  • the present invention stores matching relationship information between location information of a content and a content identifier together in a file, when metadata are stored xn the file.
  • a method for generating a file including: 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.
  • an apparatus for generating a file including: an information generator for generating matching relationship information between a content identifier of a content and location information of the content; and a file generator for generating a file including metadata for the content and the matching relationship information.
  • a method for consuming a file including: selecting a content identifier of a content from metadata of the content; acquiring location information of the content corresponding to the content identifier by using matching relationship information between the content identifier of the content and location information of the content; and acquiring the content based on the location information, wherein the metadata and the matching relationship information are included m a file.
  • an apparatus for consuming a file including: a location resolution unit for selecting a content identifier of a content from metadata of the content and acquiring location information of the content corresponding to the content identifier by using matching relationship information between the content identifier of the content and location information of the content; and a content acquisition unit for acquiring the content based on the location information, wherein the metadata and the matching relationship information are included in a file.
  • a computer-readable recording medium which defines a format to generate a file including metadata on a content and matching relationship information between a content identifier of the content and location information of the content, and stores a file capable of acquiring the content corresponding to the content identifier based on the matching relationship information.
  • the technology of the present invention can separately process authoring metadata and generating a file from each other. Also, when the location of a content is changed, the technology of the present invention can cope with the change by simply modifying a table without updating the metadata .
  • Fig. 1 is a block view illustrating a file format structure and a process of generating and consuming a file in accordance with an embodiment of the present invention.
  • Fig. 2 exemplarily illustrates information transmitted to a file handler in accordance with an embodiment of the present invention.
  • Fig. 3 exemplifies information included m matching relationship information in accordance with an embodiment of the present invention.
  • matching relationship information is stored together m the file.
  • the matching relationship information is information mapping a content identifier for a content to be stored to a locator for positioning the content in the file.
  • the matching relationship information included m the file is used to determine location the location of the content stored m the file. This is referred to as location resolution. Therefore, it is possible to access to the content m the file by using a content identifier.
  • matching relationship information in the file may include current location information of a content corresponding to a content identifier. Therefore, the present invention is not limited to a case that a content is stored m a file together.
  • a file format is an International Organization for Standardization (ISO) base media file format
  • metadata are TV-Anytime metadata
  • a content identifier used in the TV-Anytime metadata is CRID.
  • ISO base media file format An ISO base media file is formed of objects called boxes, and all data are described m the boxes.
  • a box object includes size information and type information. Size represents the size of data included in a box in a byte number. Type denotes a box identifier formed of four letters. Therefore, it is possible to easily search for the location of a box including desired information by the size information and the type information.
  • a box includes a moov box and an mdat box. The moov box and the mdat box include metadata and media data, respectively. Metadata do not include media data and it is referred to for description.
  • An ISO base media file includes a moov type box having metadata for media stream and an mdat type box having actual media data.
  • An ISO base media file format defines a track and a sample. Track represents temporal flow of media and it is formed of sample and sample description. Sample denotes a small unit such as a frame of video. Sample description defines information on how samples are to be decoded. The kinds of tracks are divided into video track, audio track and hint track. Video track and audio track include metadata for video and audio, respectively.
  • Hint track describes information on how a streaming server will perform streaming or packetizmg on video and audio samples when the ISO base media file is streamed through streaming protocol. When the video and audio samples are restored, the hint track may be disregarded. Fig.
  • FIG. 1 is a block view illustrating a file format structure and a process of generating and consuming a file m accordance with an embodiment of the present invention.
  • a collector 104 collects resources resl and res2 101 and 102 and metadata 103, which constitute a content.
  • the resources 101 and 102 and the metadata 103 collected by the collector 104 are inputted to a file handler 105.
  • the metadata 103 may be represented in an Extensible Markup Language (XML) .
  • CRID Content Reference Identifier
  • URL Uniform Resource Locator
  • the resources 101 and 102 and the metadata 103 transmitted to the file handler 105 are stored in an ⁇ mdat' box (not shown) and an ⁇ xml' box 108 of the ISO base media file format, respectively.
  • the file handler 105 generates matching relationship information between the content identifier CRID and an item identifier, a track identifier or a byte position of a resource (which is a content), as shown in Fig. 3. Also, it may generate matching relationship information between a content identifier CRID and a URL, which represents a location where a content is stored.
  • the URL may include information on a world wide web (Web) address .
  • the matching relationship information may be generated m an information generator of a file generating apparatus.
  • the generated matching relationship information is stored in a ⁇ c ⁇ d' box 107.
  • the matching relationship information may be formed in the form of a matching table showing relationship among CRID, an item identifier, a track identifier, or a byte position of a resource (which is a content) .
  • matching relationship information is generated between CRID and an item identifier or a track identifier, the location of the resource is indirectly indicated.
  • matching relationship information is generated between CRID and the byte position of the resource (which is the content), the location of the resource is directly indicated .
  • the file handler 105 generates an ⁇ xml' box 108 including the metadata 103 and a ⁇ c ⁇ d' box 107 including a content described by the metadata 103 and the resources 101 and 102 contained by the content as one file 106, and stores and manages the file 106.
  • a file generator of the file generating apparatus may generate the file 106.
  • the file generating apparatus may be a terminal or a server, and the generated file 106 may be stored in and managed by the terminal or the server.
  • Information in the ⁇ crid' box 107 can be transmitted to a location resolution service entity 113 based on TV-Anytime.
  • Information in the ⁇ xml' box 108 can be transmitted to a metadata service entity 112 and used for consumption of the file 106.
  • the file 106 can include the ⁇ crid' box 107 having the matching relationship information and the ⁇ xml' box 108 having the metadata, as described above.
  • the file may be generated through a process of packaging the v c ⁇ d' box
  • the generated file 106 may be stored in and managed by a terminal or a server.
  • the followings are exemplar syntax that can be stored m the ⁇ crid' box 107.
  • item count specifies the number of item ID pairs and CRID to be stored
  • track_count specifies the number of track ID pairs and CRID to be stored.
  • str_len specifies byte length of a CRID string.
  • CRID string specifies actually stored CRID string.
  • item_ID is a value of item_ID related to its paired CRID string
  • track_ID is a value of track_ID related to its paired CRID string.
  • a user acquires metadata included m the ⁇ xml' box 108 and selects a desired content identifier (CRID) (see 109) .
  • the information in the ⁇ xml' box 108 is transmitted to the metadata service entity 112 based on TV-Anytime, and the user acquires metadata from the metadata service entity 112 based on TV-Anytime and selects a desired content identifier.
  • the metadata service entity 112 based on TV- Anytime may be included m a terminal or a server that generates the file 106, or it may be managed by a separate object.
  • the selected content identifier is transformed into a locator indicating the location of a content or a resource included in the content (see 111) .
  • the locator indicating the location of the resource can be acquired or transformed by using the matching relationship information included in the ⁇ crid' box 107. Also, the information in the ⁇ c ⁇ d' box 107 is transmitted to the location resolution service entity 113 based on TV- Anytime, and a locator indicating the location of a content or a resource included in the content corresponding to the content identifier selected by using the matching relationship information.
  • the locator can be generally represented as a Uniform Resource Identifier
  • Identification scheme to identify a plurality of contents or resources existing in the file 106 is carried out in a location resolution unit of a file consuming apparatus.
  • the acquired locator includes actual physical location information, such as location of the file 106, an item identifier (item ID), a track identifier (track_ID) or byte position which corresponds to a specific content within the file 106.
  • the user can access to the specific content or resource within the file 106 by using the information (see 110) .
  • Accessing to a specific content or resource by using the acquired locator can be performed in a content acquisition unit of the file consuming apparatus.
  • the file consuming apparatus is a device for consuming a content, such as a terminal .
  • DMB-AF Digital Multimedia Broadcasting-Application Format
  • the player searches the ⁇ crid' box 107 of the DMB-AF file for an CRID associated with a media track or an item.
  • the player searches TV-Anytime metadata, and displays descriptions related to the CRID.
  • the player suggests content descriptions to the user and the user browses metadata by using Graphic User Interface (GUI) of the player and selects a content the user wants to consume.
  • GUI Graphic User Interface
  • the player searches the ⁇ crid' box to find out an item identifier or a track identifier related to the CRID of the selected content.
  • the method of the present invention described above can be realized as a program and stored m a computer-readable recording medium such as CD-ROM, RAM, ROM, floppy disks, hard disks, magneto-optical disks and the like. Since the process can be easily implemented by those skilled m the art to which the present invention pertains, further description will not be provided herein. While the present invention has been described with respect to the specific embodiments, it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined m the following claims.
  • block diagrams of the present invention should be understood to show a conceptual viewpoint of an exemplary circuit that embodies the principles of the present invention.
  • all the flowcharts, state conversion diagrams, pseudo codes and the like can be expressed substantially in a computer-readable media, and whether or not a computer or a processor is described distinctively, they should be understood to express various processes operated by a computer or a processor.
  • Functions of various devices illustrated in the drawings including a functional block expressed as a processor or a similar concept can be provided not only by using hardware dedicated to the functions, but also by using hardware capable of running proper software for the functions.
  • a function When a function is provided by a processor, the function may be provided by a single dedicated processor, single shared processor, or a plurality of individual processors, part of which can be shared.
  • the file includes the metadata and the matching relationship information.
  • the content may include resources, and the matching relationship information may include a locator.
  • the metadata and the matching relationship information may be generated as files through a packaging process.
  • the matching relationship information includes the content identifier and the location information of the content in the form of a mapping table.
  • the file includes the content, the metadata, and the matching relationship information .
  • the present invention may be applied to general metadata identifying a content by using a URI.
  • Metadata mentioned in the present specification include metadata used m TV-Anytime, MPEG-21 Digital Item Declaration
  • IPMP Property Management and Protection
  • a computer-readable recording medium of the present invention defines a format to generate a file including metadata on a content and matching relationship information between a content identifier of the content and location information of the content, and stores a file that can acquire the content corresponding to the content identifier based on the matching relationship information.
  • the file may be generated by using a method of packaging metadata and matching relationship information.
  • a content may include resources and metadata may include a content identifier.
  • the content identifier may be a Contents Reference Identifier (CRID) or a Universal Unique Identifier (UUID) .
  • CRID Contents Reference Identifier
  • UUID Universal Unique Identifier
  • the matching relationship information stores information on a content identifier and location information of a content corresponding to the content identifier in a mapped form.
  • the location information of the content may include current location information of the content, and it may be stored m the form of a Uniform Resource Locator (URL) .
  • URL Uniform Resource Locator
  • the file may further include the content.
  • a method of packaging the content, metadata, and matching relationship information into one file is used to generate the file.
  • Location information may include an item identifier (item_ID) or a track identifier (track ID) of an ISO base media file format for a content. In case where an item identifier (item ID) or a track identifier (track_ID) is used, the location of the content can be identified indirectly.
  • the location information may include byte position information for the content. Byte position information is used to directly identify the location of the content or resources included m the file. Byte position information may include offset information for specifying the starting position of a corresponding content or resource and length information for specifying the length from the starting position.
  • the matching relationship information stores a mapping table including a content identifier and an item identifier, a track identifier, or byte position information .
  • a file generation method of the present invention 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.
  • the location information may include current location information of the content.
  • the file may further include the content.
  • the location information may include an item identifier or a track identifier of an ISO base media file format for the content. Also, the location information may include byte position information for the content.
  • a file generating apparatus of the present invention includes information generator for generating matching relationship information between a content identifier of a content and location information of the content and a file generator for generating a file including metadata for the content and the matching relationship information.
  • the location information may include current location information of the content .
  • the file may further include the content.
  • the location information may include an item identifier or a track identifier of an ISO base media file format for the content. Also, the location information may include byte position information for the content. Since details related to the generation of a file have been explained in the ⁇ Structure of File Format> part, they will not be described herein.
  • a file consuming method of the present invention includes selecting a content identifier of a content from metadata of the content, acquiring location information of the content corresponding to the content identifier by using matching relationship information between the content identifier of the content and location information of the content, and acquiring the content based on the location information.
  • the metadata and the matching relationship information are included in a file.
  • the location information may include current location information of the content.
  • the file may further include the content.
  • a method of identifying the content included in the file such as MPEG-21 Part 17 Fragment Identification scheme, may be used to acquire the location information of the content.
  • the location information may include an item identifier or a track identifier of an ISO base media file format for the content.
  • the location information may include byte position information for the content.
  • a file consuming apparatus of the present invention includes a location resolution unit for selecting a content identifier of a content from metadata of the content and acquiring location information of the content corresponding to the content identifier by using matching relationship information between the content identifier of the content and location information of the content, and a content acquisition unit for acquiring the content based on the location information.
  • the metadata and the matching relationship information are included in a file.
  • the location information may include current location information of the content.
  • the present invention is used for generation and consumption of a file that can detect the location of a content by using metadata using a content identifier.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • Business, Economics & Management (AREA)
  • General Engineering & Computer Science (AREA)
  • Marketing (AREA)
  • Strategic Management (AREA)
  • Multimedia (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Economics (AREA)
  • Signal Processing (AREA)
  • General Business, Economics & Management (AREA)
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  • Development Economics (AREA)
  • Accounting & Taxation (AREA)
  • Human Resources & Organizations (AREA)
  • Primary Health Care (AREA)
  • Tourism & Hospitality (AREA)
  • Artificial Intelligence (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Human Computer Interaction (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Hardware Design (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

L'invention concerne des procédés et des appareils de création et d'utilisation de fichiers, et un support d'enregistrement lisible par ordinateur. Ce procédé de création de fichiers consiste à générer des informations d'appariement entre un identifiant d'un contenu et une information de localisation du contenu, et à créer un fichier contenant des métadonnées pour le contenu et les informations d'appariement.
PCT/KR2008/005811 2007-10-16 2008-10-02 Procédé de création et d'utilisation d'un fichier, appareil correspondant et support lisible par ordinateur WO2009051360A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08840458A EP2212855A4 (fr) 2007-10-16 2008-10-02 Procédé de création et d'utilisation d'un fichier, appareil correspondant et support lisible par ordinateur
CN2008801212490A CN101903904A (zh) 2007-10-16 2008-10-02 用于生成及消费文件的方法及其设备、及计算机可读介质

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20070104067 2007-10-16
KR10-2007-0104067 2007-10-16
KR1020080095540A KR101601851B1 (ko) 2007-10-16 2008-09-29 파일 생성 및 소비 방법 및 그 장치
KR10-2008-0095540 2008-09-29

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Publication Number Publication Date
WO2009051360A1 true WO2009051360A1 (fr) 2009-04-23

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EP (1) EP2212855A4 (fr)
KR (1) KR101601851B1 (fr)
CN (1) CN101903904A (fr)
WO (1) WO2009051360A1 (fr)

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Publication number Priority date Publication date Assignee Title
KR101718891B1 (ko) * 2010-01-26 2017-03-23 삼성전자주식회사 영상 검색 방법 및 장치

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EP2212855A1 (fr) 2010-08-04
KR20090038810A (ko) 2009-04-21

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