WO2009140869A1 - 元数据的上传方法、装置、系统及终端 - Google Patents

元数据的上传方法、装置、系统及终端 Download PDF

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Publication number
WO2009140869A1
WO2009140869A1 PCT/CN2009/070393 CN2009070393W WO2009140869A1 WO 2009140869 A1 WO2009140869 A1 WO 2009140869A1 CN 2009070393 W CN2009070393 W CN 2009070393W WO 2009140869 A1 WO2009140869 A1 WO 2009140869A1
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Prior art keywords
metadata
uploading
media stream
signaling message
content identifier
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PCT/CN2009/070393
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English (en)
French (fr)
Inventor
陈学梁
漆宝剑
施有铸
张妮
朱文明
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华为技术有限公司
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Publication of WO2009140869A1 publication Critical patent/WO2009140869A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/16Analogue secrecy systems; Analogue subscription systems
    • H04N7/173Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309Transmission or handling of upstream communications
    • H04N7/17318Direct or substantially direct transmission and handling of requests
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60Network streaming of media packets
    • H04L65/61Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/611Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for multicast or broadcast
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60Network streaming of media packets
    • H04L65/75Media network packet handling
    • H04L65/764Media network packet handling at the destination 
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing 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
    • H04N21/434Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4348Demultiplexing of additional data and video streams
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/643Communication protocols
    • H04N21/64322IP
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/84Generation or processing of descriptive data, e.g. content descriptors

Definitions

  • Metadata uploading method, device, system and terminal The application is submitted to the Chinese Patent Office on May 19, 2008, and the application number is 200810098916.X, and the invention name is "metadata uploading method, device, system and terminal" Priority of Chinese Patent Application, the entire contents of which is incorporated herein by reference.
  • the present invention relates to the field of communications, and in particular, to a method, an apparatus, a system, and a terminal for uploading metadata. Background technique
  • IP Multimedia Subsystem of the all-IP service network architecture based on the packet bearer network.
  • IMS IP Multimedia Subsystem
  • IMS is a new form of multimedia service that meets the needs of today's end-users for newer and more diverse multimedia services.
  • the main functional entities in the IMS include: a Call Control Entity (CSCF) for controlling user registration and session control, an Application Server (AS) for providing various service logic control functions, and a home user for centrally managing user subscription data.
  • Server HSS
  • Media Gateway Control Function MGCF
  • IM-MGW IP Multimedia Gateway Function
  • the user equipment (UE) accesses the IMS through the roaming proxy node (P-CSCF), and the session and service trigger control and the service control interaction with the AS are completed by the home service node (S-CSCF).
  • P-CSCF roaming proxy node
  • S-CSCF home service node
  • IPTV technology is a new type of media information service technology established by telecommunication network technology, internet technology, broadcast television network technology and media transmission technology, which will digital video broadcasting content. After the media is converted, it is transmitted on the IP network, and the various networks are enabled to receive and play the television programs through the access network.
  • the IMS-based IPTV system not only provides basic live (BC) services, on-demand (VOD) services, and recording (PVR) services, but also provides various enhanced services that reflect the advantages of IMS, including user-generated video (Consumer Originated Video, Hereinafter referred to as: COV) business.
  • BC basic live
  • VOD on-demand
  • PVR recording
  • Metadata in the basic service and the enhanced service which mainly include service metadata and content metadata
  • the service metadata refers to description data of the IPTV service
  • the content metadata refers to description data of the IPTV content.
  • the generation of metadata includes three cases, one is generated by a content provider (CP) and provided to a service provider (SP), which is mainly content metadata; the other is by the UE.
  • Generating content metadata for example: the user inputs the description information of the content according to the input interface, and the UE generates the content metadata according to the input information of the user; the other is the metadata generated by the service provider of the network, mainly the service metadata.
  • billing information of an IPTV service deployment information of a service-related media content, and the like.
  • the prior art relates to related standards and specifications for transmitting metadata from a network to a UE, but the prior art technical solution cannot implement uploading IPTV metadata to the network.
  • the metadata of the IPTV terminal in the IPTV service after normal uploading cannot be realized.
  • the method, device and system for uploading metadata provided by the embodiments of the present invention solve the problem of uploading metadata in the IMS-based IPTV system, and ensure that the IPTV service can normally access the uploaded metadata.
  • the terminal provided by the embodiment of the present invention solves the problem of uploading metadata in an IMS-based IPTV system.
  • the embodiment of the invention provides a method for uploading metadata, including:
  • the metadata is associated with the obtained content identification.
  • An embodiment of the present invention provides a metadata uploading apparatus, including:
  • An extraction module configured to receive a signaling message or a media stream encapsulated with metadata in an IPTV system, and extract the metadata from the signaling message or the media stream;
  • the first association module is configured to associate the metadata with the obtained content identifier.
  • An embodiment of the present invention provides a terminal, including: a metadata generating unit and a flyer element on a metadata;
  • the metadata generating unit includes:
  • a metadata generating module configured to generate metadata in the IPTV system, and send the metadata to the metadata uploading unit
  • the metadata uploading unit includes:
  • a first encapsulating module configured to encapsulate the metadata in a signaling message or a media stream
  • a sending module configured to send the signaling message or the media stream.
  • the embodiment of the present invention provides a metadata uploading system, including: a terminal and a metadata uploading device, where the terminal includes: a metadata generating unit and a metadata uploading unit;
  • the metadata generating unit includes:
  • a metadata generating module configured to generate metadata in the IPTV system, and send the metadata to the metadata uploading unit
  • the metadata uploading unit includes:
  • a first encapsulating module configured to encapsulate the metadata in a signaling message or a media stream
  • a sending module configured to send the signaling message or a media stream
  • the metadata uploading device includes:
  • An extracting module configured to receive a signaling message or a media stream encapsulated with the metadata, and extract the metadata from the signaling message or the media stream;
  • the first association module is configured to associate the metadata with the obtained content identifier.
  • the method, device and system for uploading metadata provided by the embodiments of the present invention solve the problem of uploading metadata in the IMS-based IPTV system by uploading metadata in the IPTV, and ensure that the IPTV service can normally access the uploaded metadata. .
  • the terminal provided by the embodiment of the present invention solves the problem of uploading metadata in the IMS-based IPTV system by uploading metadata in the IPTV.
  • FIG. 1 is a flowchart of a method for uploading metadata according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for uploading binary data according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a network architecture applicable to a method for uploading binary data according to an embodiment of the present invention
  • FIG. 4 is a signaling flowchart of a method for uploading ternary data according to an embodiment of the present invention
  • FIG. 5 is a signaling flowchart of a method for uploading quaternary data according to an embodiment of the present invention
  • FIG. 6 is a signaling flowchart of a method for uploading five-dimensional data according to an embodiment of the present invention
  • FIG. 7 is a signaling flowchart of a method for uploading six-element data according to an embodiment of the present invention.
  • FIG. 8 is a signaling flowchart of a method for uploading seven-dimensional data according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a metadata uploading apparatus according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a terminal according to an embodiment of the present invention.
  • FIG. 11 is a schematic diagram of a metadata uploading system of an embodiment of the present invention. detailed description
  • the method, device, system and terminal for uploading metadata of the embodiment of the present invention can be widely applied to the following scenarios:
  • a user sees a very beautiful scenery on the way to the tour, so he takes out the UE with IPTV function and starts the function of uploading video to the network. During the uploading process, the user can also add a description of the video content to "something in a certain month in 2008, I am on a business trip in Yangshuo".
  • a user participates in the interactive voting of the IPTV program. According to the voting interface presented by the UE, after filling in the relevant voting result, and clicking the uploading voting result, the voting result is uploaded to the network in the form of metadata.
  • FIG. 1 is a flowchart of a method for uploading metadata according to an embodiment of the present invention. This embodiment is used in the IPTV system. As shown in FIG. 1, the embodiment specifically includes the following steps:
  • Step 101 Receive a signaling message or a media stream encapsulated with metadata in an IPTV system, and extract metadata from the signaling message or the media stream.
  • Step 102 Associate the metadata with the obtained content identifier.
  • the metadata is associated with the content identifier, which solves the problem of uploading metadata in the IMS-based IPTV system, and ensures that the IPTV service can normally access the uploaded metadata.
  • FIG. 2 is a flowchart of a method for uploading binary data according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a network architecture applicable to a method for uploading binary data according to an embodiment of the present invention.
  • This embodiment is for an IPTV system.
  • the network includes a metadata generating unit 11, a metadata uploading unit 12, a metadata processing unit 13, and a metadata storing unit 14.
  • the embodiment may specifically include the following steps:
  • Step 201 The metadata generating unit generates metadata.
  • the step may include: the metadata generating unit receives the input information of the user, and converts the input information of the user into metadata; and may also collect media information according to the UE or the MF (eg, a media codec format, an address of the media stream, and the like). ) Generate metadata.
  • the metadata generating unit may further generate a content identifier, where the content identifier is a globally unique identifier, and may be a representation form such as a CRID, a TV URL CID, or a URL.
  • the content identifier can be generated before the media content is uploaded, or generated in the media content upload, or after the media content is uploaded.
  • Step 202 The metadata uploading unit encapsulates the metadata (or the metadata and the content identifier) in a signaling message or a media stream, and sends the signaling message or the media stream.
  • the metadata upload unit encapsulates the metadata in signaling. In the message or the media stream; if the metadata and the content identifier are generated in step 201, the metadata uploading unit encapsulates the metadata and the content identifier in a signaling message or a media stream.
  • the sending of the signaling message or the media stream may be performed before the uploading of the media content, or during the uploading of the media content, or after the uploading of the media content.
  • the metadata uploading unit encapsulates the metadata (or the metadata and the content identifier) in the signaling message. Further, the metadata (or metadata and content identification) can be encapsulated in a signaling message body of Hypertext Transfer Protocol (Http ) / SIP / Real Time Streaming Protocol (RTSP) / pre-negotiated file transfer protocol.
  • Http Hypertext Transfer Protocol
  • RTSP Real Time Streaming Protocol
  • the metadata (or metadata and content identifier) is encapsulated in the message body of the SIP protocol: the message body of the content-type: text/plain format may be carried by an invitation (INVITE) request message, and the metadata may be encapsulated in the message body. (or metadata and content identification); metadata (or metadata and content identification) can also be carried in the new message method;
  • Encapsulate the metadata (or metadata and content identifier) in the message body of the Http protocol use the post command of Http to encapsulate the metadata (or metadata and content identifier) in the message body of the Http;
  • Encapsulate metadata (or metadata and content identifiers) in the message body of the RTSP protocol Encapsulate metadata (or metadata and content in the program description of the URL or the request message of the media object using the RTSP notification ( ANNOUNCE) command Content identification).
  • the signaling message obtained by encapsulating in the manner of signaling message encapsulation can be transmitted through the Ut (Htt protocol) / Gm (SIP protocol) / Xc (RTSP protocol) interface in the IMS-based IPTV system.
  • the metadata uploading unit may encapsulate the metadata (or metadata and content identification) in the media stream.
  • Carrying metadata (or metadata and content identification) through the RTP protocol In RFC 2793, the use of the RTP protocol to encapsulate text information, which defines a new RTP payload name and the corresponding MIME type T140 (text/tl40), is utilized. Encapsulate metadata (or metadata and content tags in this way) ⁇ Encapsulate metadata (or metadata and content identifiers) with MPEG2-TS streams: IEC IEC 61883-4:1998 Home audio and video equipment - digital interface - Part 4: MPEG2-TS data transmission standards, Data (or metadata and content identification) is encapsulated in an MPEG2-TS stream.
  • the media stream obtained by encapsulating in the media stream encapsulation manner can be transmitted through the Xd interface in the IMS-based IPTV system.
  • Step 203 The metadata processing unit receives the signaling message or the media stream encapsulated with the metadata, and extracts the metadata from the signaling message or the media stream.
  • the content identifier is generated by the metadata generating unit in step 201, the content identifier is further encapsulated in the signaling message or the media stream, and the content identifier is extracted while extracting the metadata;
  • the step further includes generating a globally unique content identifier by the metadata processing unit.
  • Step 204 The metadata processing unit associates the metadata with the obtained content identifier. After the media content is generated, the metadata processing unit further needs to associate the content identifier with the media content, so that the media content is established by the content identifier. The association of metadata.
  • the foregoing associating the metadata with the content identifier may be specifically: establishing a first database including a mapping relationship between the metadata and the content identifier, where a data directory in the first database describes the metadata, the content identifier, and both The mapping relationship between them.
  • the foregoing associating the content identifier with the media content may be specifically: establishing a second database that includes a mapping relationship between the storage location of the media content and the content identifier, where a data directory in the second database describes the storage location of the media content. , content identification, and the mapping between the two.
  • obtaining a content identifier corresponding to the metadata by searching the first database; searching the second database to obtain a storage location of the media content corresponding to the content identifier, and further accessing the media content corresponding to the metadata .
  • Step 205 The metadata processing unit converts the data format of the metadata. Since the metadata sent by the metadata uploading unit does not conform to the data format specification, in order to ensure the consistency of the data format in the subsequent storage, the metadata that does not conform to the standard format can be converted into a unified standard format. This embodiment may not include step 205 when data format conversion is not required.
  • Step 206 The metadata storage unit stores the metadata.
  • the metadata storage unit stores the processed metadata according to a certain rule (which may be a preset rule), and the metadata storage unit may be a single network element, or may be integrated into a network such as a metadata processing unit.
  • a certain rule which may be a preset rule
  • the metadata is encapsulated in a signaling message or a media stream, and is uploaded to the metadata processing unit through the Ut/Gm/Xc/Xd interface, thereby solving the problem of uploading metadata in the IMS-based IPTV system.
  • the metadata is associated with the content identifier, and the content identifier is also associated with the media content, thereby establishing the association relationship between the metadata and the media content, thereby ensuring that the IPTV service can be normal. Access the uploaded metadata.
  • FIG. 4 is a signaling flowchart of a method for uploading ternary data according to an embodiment of the present invention.
  • the embodiment is used in an IPTV system, wherein a metadata generating unit and a metadata reporting unit are integrated in the UE, and the metadata processing unit is in a service control function entity (hereinafter referred to as SCF), and the metadata storage unit is in the content.
  • SCF service control function entity
  • CPSF Data Profile Service Function
  • the UE downloads the COV content information input interface from the network, or during the session, the network sends a metadata input page link to the UE, and after clicking the link, the user downloads the COV content information input interface;
  • the COV content information input interface inputs information.
  • the embodiment specifically includes the following steps:
  • Step 301 The metadata generating unit in the UE performs related processing on the input information of the user to generate metadata, and the UE further generates other metadata according to the COV content or other operations of the user, etc.; all the metadata may be Extensible Marked Language (Extensible Marked Language, The following is abbreviated as: XML) format, which can also be generated in other description formats; according to the uploading unit, according to the interface between the UE and the SCF (Ut interface in this embodiment) and the protocol (this embodiment is the Http protocol) Encapsulating the metadata in the message body of the protocol, the message body being a signaling message, and sending the signaling message to the metadata processing unit SCF;
  • XML Extensible Marked Language
  • the post command of the Http is used, and the message of the post command carries the metadata.
  • Step 303 After receiving the signaling message, the metadata processing unit decodes the signaling message and extracts the metadata.
  • Step 304 The UE does not generate the content identifier, so the metadata processing unit decodes the signaling message without extracting the content identifier, and the metadata processing unit needs to generate a globally unique content identifier. Then, the content identifier and the metadata are associated; After the media content is generated, the metadata processing unit also needs to associate the content identifier with the media content, so that the association relationship between the media content and the metadata is established through the content identifier, so as to ensure that the processed metadata can be normally accessed by the IPTV service. ;
  • Step 305 The metadata processing unit may further include a metadata format conversion function, and convert the metadata and the content identifier that do not conform to the standard storage format into a standard storage format; this step is an optional step; Step 306, the metadata processing unit passes The interface (the interface between the SCF and the CPSF) sends the processed metadata to the metadata storage unit according to the private protocol or the non-private protocol, and the metadata storage unit stores the metadata according to the internal metadata storage rule;
  • the interface can be an internal interface or an external interface.
  • the metadata generating unit in this embodiment is not limited to the UE.
  • the metadata generating unit may also be located in the SCF or the MF or the CPSF;
  • the metadata processing unit is not limited to the SCF, and may also be In the MF or SSF or CPSF;
  • the metadata storage unit may be in an entity such as CPSF, UPSF, SCF, SSF, or a separate entity, and may be integrated in an SCF or SSF or other network entity.
  • the metadata is encapsulated in a signaling message according to the Http protocol, and Uploading to the metadata processing unit through the Ut interface solves the problem of uploading metadata in the IMS-based IPTV system; at the same time, the metadata is associated with the content identifier in the metadata processing unit, and the content identifier and the media content There is also an association relationship, thereby establishing an association relationship between the metadata and the media content, thereby ensuring that the IPTV service can normally access the uploaded metadata.
  • FIG. 5 is a signaling flowchart of a method for uploading quaternary data according to an embodiment of the present invention.
  • the embodiment is used in an IPTV system, wherein a metadata generating unit and a metadata reporting unit are integrated in a UE, a metadata processing unit is in an SCF, and a metadata storage unit is in a CPSF.
  • the UE downloads the COV content information input interface from the network, or during the session, the network sends a metadata input page link to the UE, and after clicking the link, the user downloads the COV content information input interface;
  • the COV content information input interface inputs information.
  • the embodiment specifically includes the following steps:
  • Step 401 The metadata generating unit in the UE performs related processing on the input information of the user to generate metadata, and the UE further generates other metadata according to the COV content or other operations of the user, etc.; all the metadata may be in XML.
  • the format is generated, and may also be generated in another description format; and, the metadata generating unit further generates a globally unique content identifier;
  • Step 402 The metadata generating unit sends the generated metadata and the content identifier to the metadata uploading unit, and the metadata uploading unit is configured according to the interface between the UE and the SCF (the Gm interface in this embodiment) and the protocol.
  • the metadata and the content identifier are encapsulated in the message body of the SIP protocol, and the message body is a signaling message, and the signaling message is sent to the metadata processing unit SCF.
  • the SDP of the SIP protocol can be used.
  • the message body carries the metadata and the content identifier, and is uploaded to the metadata processing unit by using SIP signaling.
  • the request message may be carried by the content-type: text/plain format.
  • the message body carries the metadata and the content identifier in the message body; if the signaling message is sent during the media content uploading process, the metadata and the content identifier may be carried in the message body of the message method by defining a new message method. If the signaling message is sent after the media content is uploaded, the metadata and the content identifier may be carried by the message body such as INFO or NOTIFY.
  • Step 403 After receiving the signaling message, the metadata processing unit decodes the signaling message, and extracts the metadata and the content identifier.
  • Step 404 The content processing identifier is extracted by decoding the signaling message, and the metadata processing unit associates the content identifier with the metadata. After the media content is generated, the metadata processing unit further needs to associate the content identifier with the media content. In this way, through the content identification, the association relationship between the media content and the metadata will be established to ensure that the processed metadata can be normally accessed by the IPTV service; Step 405, the metadata processing unit may further have a metadata format conversion function, which may Metadata and content identifiers that do not conform to the standard storage format are converted to a standard storage format; this step is an optional step; Step 406, the metadata processing unit passes the interface (the interface is an interface between the SCF and the CPSF), according to a proprietary protocol or The non-private protocol sends the processed metadata to the metadata storage unit, and the metadata storage unit stores the metadata according to the internal metadata storage rule; the interface may be an internal interface or an external interface.
  • the interface may be an internal interface or an external interface.
  • the metadata generating unit in this embodiment is not limited to being in the UE, but may also be in the SCF or MF; the metadata processing unit is not limited to the SCF, but may also be in the MF or the SSF or the CPSF; the metadata storage unit may be in the CPSF. In an entity such as UPSF, SCF, or SSF, it may also be a separate entity.
  • the metadata and the content identifier are encapsulated in the signaling message according to the SIP protocol, and are uploaded to the metadata processing unit through the Gm interface, thereby solving the problem of uploading metadata in the IMS-based IPTV system;
  • the metadata is associated with the content identifier in the metadata processing unit, and the content identifier is also associated with the media content, thereby establishing the association relationship between the metadata and the media content, thereby ensuring that the IPTV service can normally access the upload.
  • FIG. 6 is a signaling flowchart of a method for uploading five-dimensional data according to an embodiment of the present invention.
  • the embodiment is used in an IPTV system, wherein a metadata generating unit and a metadata reporting unit are integrated in a UE, a metadata processing unit is in the MF, and a metadata storage unit is in the CPSF.
  • the UE downloads the COV content information input interface from the network, or during the session, the network sends a metadata input page link to the UE, and after clicking the link, the user downloads the COV content information input interface; Input information according to the COV content information input interface.
  • the embodiment specifically includes the following steps:
  • Step 501 The metadata generating unit in the UE performs related processing on the input information of the user to generate metadata, and the UE further generates other metadata according to the COV content or other operations of the user, etc.; all the metadata may be in XML.
  • the format is generated, and may also be generated in another description format; according to the interface between the UE and the MF (the Xd interface in this embodiment) and the protocol (the MPEG2-TS or RTP protocol in this embodiment),
  • the metadata is encapsulated in the protocol; the UE encapsulates the metadata using the RTP protocol or the MPEG2-TS, and obtains the media stream, and uploads the data stream to the metadata processing unit through the Xd interface;
  • the metadata can be multiplexed in the MPEG2-TS stream according to the MPEG2 - TS data transmission specification in IEC 61883 - 4: 1998 Home Audio and Video Equipment - Digital Interface - Part 4; In case, the MF needs to have the ability to extract metadata from the MPEG2-TS stream;
  • a new RTP payload name and corresponding MIME type can be defined according to a method similar to RFC2793 for encapsulating text information by using the RTP protocol, such as T140 (text/tl40) defined in RFC2793.
  • the metadata is encapsulated; at the same time, the existing RTP protocol needs to be enhanced according to the above manner, and the MF needs to be enhanced so that the MF has the ability to extract metadata from the RTP media stream.
  • Step 503 After receiving the media stream, the metadata processing unit demultiplexes the media stream to extract metadata.
  • Step 504 The metadata processing unit needs to generate a globally unique content identifier because the content identifier is not extracted by demultiplexing the media stream. Then, the content identifier and the metadata are associated; after the media content is generated, the metadata processing unit It is also necessary to associate the content identifier with the media content, so that through the content identification, the association relationship between the media content and the metadata will be established to ensure processing.
  • the subsequent metadata can be accessed normally by the IPTV service;
  • Step 505 The metadata processing unit may further include a metadata format conversion function, and may convert the metadata and the content identifier that do not conform to the standard storage format into a standard storage format; this step is an optional step; Step 506, the metadata processing unit passes The interface sends the processed metadata to the metadata storage unit according to the private protocol or the non-private protocol, and the metadata storage unit stores the metadata according to the internal metadata storage rule; the interface may be an internal interface, or For the external interface.
  • a globally unique content identifier is generated by the metadata generating unit.
  • the metadata and the content identifier are both encapsulated in the media stream.
  • the media stream is decrypted.
  • extracting the metadata and the content identifier; in step 504, the extracted metadata is associated with the content identifier without generating a content identifier.
  • the metadata generating unit in this embodiment is not limited to being in the UE, but may also be in the SCF or MF or the CPSF; the metadata processing unit is not limited to the MF, but may also be in the SCF or the SSF or the CPSF; the metadata storage unit may In entities such as CPSF, SCF, SSF, and UPSF, it may also be a single entity.
  • the metadata (or metadata and content identifier) can be encapsulated in the media stream by using an RTP protocol or an MPEG2-TS method, and uploaded to the metadata processing unit through the Xd interface, and the IMS-based solution is solved.
  • the metadata is uploaded; at the same time, the metadata is associated with the content identifier in the metadata processing unit, and the content identifier is also associated with the media content, thereby establishing the association between the metadata and the media content. Relationship, thus ensuring that the IPTV service can normally access the uploaded metadata.
  • FIG. 7 is a signaling flowchart of a method for uploading six-element data according to an embodiment of the present invention.
  • the embodiment is used in an IPTV system, wherein a metadata generating unit and a metadata reporting unit are integrated in a UE, a metadata processing unit is in the MF, and a metadata storage unit is in the CPSF.
  • the UE downloads the COV content information input interface from the network, or during the session, the network sends a metadata input page link to the UE, and after clicking the link, the user downloads the COV content information input interface;
  • the COV content information input interface inputs information.
  • the embodiment specifically includes the following Steps:
  • Step 601 The metadata generating unit in the UE performs related processing on the input information of the user to generate metadata, and the UE further generates other metadata according to the COV content or other operations of the user, etc.; all the metadata may be in XML.
  • the format is generated, and can also be generated in other description formats.
  • the new media transmission channel (including the negotiated file transmission protocol, transmission port, etc.) is negotiated by the SCF and the MF. After the negotiation is successful, the metadata uploading unit will be The data is encapsulated in the file transfer protocol used by the negotiation, and the signaling message is obtained, and is uploaded to the metadata processing unit through the negotiated file transmission port;
  • the UE determines the file transmission channel through the SCF and the MF through the IMS core network, and the UE obtains the information about the file transmission channel, and the related information includes but is not limited to the file transmission protocol, the file transmission port, etc., wherein the SCF is an entity of the negotiation. It is mainly used as a bridge between the UE and the MF.
  • the negotiated file transfer protocol can be a file transfer protocol such as Http/FTP/FLUTE.
  • the UE has a transmission channel negotiation function, which is used to negotiate a file transmission channel with the network side entity.
  • Step 603 After receiving the signaling message, the metadata processing unit decodes the signaling message and extracts the metadata.
  • Step 604 The metadata processing unit needs to generate a globally unique content identifier because the content identifier is not extracted by decoding the signaling message. Then, the content identifier and the metadata are associated; after the media content is generated, the metadata processing unit further The content identifier and the media content need to be associated, so that the association relationship between the media content and the metadata is established through the content identifier, so as to ensure that the processed metadata can be normally accessed by the IPTV service;
  • Step 605 The metadata processing unit may further comprise a metadata format conversion function, which can convert the metadata and the content identifier that do not conform to the standard storage format into a standard storage format; this step is an optional step; Step 606, the metadata processing unit passes The interface sends the processed metadata to the metadata storage unit according to a private protocol or an existing protocol, and the metadata storage unit stores according to the internal metadata. Rules, storing metadata; the interface can be an internal interface or an external interface.
  • the metadata generating unit in this embodiment is not limited to being in the UE, but may also be in the SCF or MF or the CPSF; the metadata processing unit is not limited to the MF, but may also be in the SCF or the SSF or the CPSF; the metadata storage unit may In an entity such as CPSF or SCF or UPSF or SSF, it may also be a separate entity.
  • the metadata transmission can be encapsulated in a signaling message by using a negotiated file transfer protocol, and uploaded to the metadata processing unit through the negotiated file transmission port, thereby solving the uploading of metadata in the IMS-based IPTV system.
  • the metadata is associated with the content identifier, and the content identifier is also associated with the media content, thereby establishing the association relationship between the metadata and the media content, thereby ensuring that the IPTV service can Normal access to uploaded metadata.
  • FIG. 8 is a signaling flowchart of a method for uploading seven-dimensional data according to an embodiment of the present invention.
  • the embodiment is used in the IPTV system, wherein the metadata generating unit and the metadata reporting unit are integrated in the UE, the metadata processing unit is in the MF, and the metadata storage unit is in the CPSF.
  • the UE downloads the COV content information input interface from the network, or during the session, the network sends a metadata input page link to the UE, and after clicking the link, the user downloads the COV content information input interface;
  • the COV content information input interface inputs information.
  • the embodiment specifically includes the following steps:
  • Step 701 The metadata generating unit in the UE performs related processing on the input information of the user to generate metadata, and the UE further generates other metadata according to the COV content or other operations of the user, etc.; all the metadata may be in XML.
  • the format is generated, and may also be generated in another description format; according to the uploading unit, the interface between the UE and the MF (the Xc interface in this embodiment) and the protocol (the RTSP protocol in this embodiment), the metadata is encapsulated.
  • the message body of the RTSP protocol is a signaling message, and the signaling message is sent to the metadata processing unit SCF;
  • the ANNOUNCE command of the RTSP protocol can be used to carry metadata, and the command is used to issue a program description or a media object determined by the request URL.
  • Step 703 After receiving the signaling message, the metadata processing unit decodes the signaling message and extracts the metadata.
  • Step 704 The metadata processing unit needs to generate a globally unique content identifier because the content identifier is not extracted by decoding the signaling message. Then, the content identifier and the metadata are associated; after the media content is generated, the metadata processing unit further The content identifier and the media content need to be associated, so that the association relationship between the media content and the metadata is established through the content identifier, so as to ensure that the processed metadata can be normally accessed by the IPTV service;
  • Step 705 The metadata processing unit may further include a metadata format conversion function, and convert the metadata and the content identifier that do not conform to the standard storage format into a standard storage format; this step is an optional step; Step 706, the metadata processing unit passes The interface sends the processed metadata to the metadata storage unit according to the private protocol or the non-private protocol, and the metadata storage unit stores the metadata according to the internal metadata storage rule; the interface may be an internal interface, or For the external interface.
  • the metadata generating unit in this embodiment is not limited to being in the UE, but may also be in the SCF or MF or the CPSF; the metadata processing unit is not limited to the MF, but may also be in the SCF or the SSF or the CPSF; the metadata storage unit may In an entity such as CPSF or SCF or UPSF or SSF, it may also be a separate entity.
  • the metadata is encapsulated in a signaling message by using the RTSP protocol, and is uploaded to the metadata processing unit through the Xc interface, thereby solving the problem of uploading metadata in the IMS-based IPTV system;
  • the metadata is associated with the content identifier, and the content identifier is also associated with the media content, thereby establishing an association relationship between the metadata and the media content, thereby ensuring that the IPTV service can normally access the uploaded element. data.
  • FIG. 9 is a schematic diagram of a metadata uploading apparatus according to an embodiment of the present invention.
  • the metadata uploading apparatus is used in an IPTV system, and may be specifically a metadata processing unit.
  • the method further includes: an extracting module 21, configured to receive a package. Signaling message or media stream with metadata in the IPTV system, from signaling The metadata is extracted from the media stream; the first association module 22 is configured to associate the metadata with the obtained content identifier.
  • the embodiment may further include: a second association module 23, configured to associate the content identifier with the media content; a generating module 24, configured to generate a globally unique content identifier; and a conversion module 25, configured to perform the data format of the metadata Conversion.
  • the metadata is associated with the content identifier, which solves the problem of uploading metadata in the IMS-based IPTV system, and ensures that the IPTV service can be accessed normally after uploading. Metadata.
  • FIG. 10 is a schematic diagram of a terminal according to an embodiment of the present invention.
  • the IPTV system as shown in FIG. 10, specifically includes: a metadata generating unit 31 and a metadata uploading unit 32.
  • the metadata generating unit 31 may include: a metadata generating module 311, configured to generate metadata in the IPTV system, and send the metadata to the metadata uploading unit.
  • the metadata uploading unit 32 may include a first encapsulating module for encapsulating metadata in a signaling message or a media stream, and a sending module 321 for transmitting a signaling message or a media stream.
  • the metadata generating unit 31 may further include: a content identifier generating module 312, configured to generate a globally unique content identifier.
  • the first encapsulating module may be specifically a second encapsulating module 322 for encapsulating metadata and content identifiers in a signaling message or a media stream.
  • the metadata is encapsulated in a signaling message encapsulation manner or a media stream encapsulation manner, and a signaling message or a media stream encapsulated with metadata is obtained and transmitted, and the IMS-based IPTV system is solved.
  • the problem of uploading metadata is a signaling message encapsulation manner or a media stream encapsulation manner.
  • FIG. 11 is a schematic diagram of a metadata uploading system according to an embodiment of the present invention.
  • the IPTV system as shown in FIG. 11, specifically includes: a terminal 4 and a metadata uploading device 5, and the terminal 4 includes: a metadata generating unit 41 and a metadata uploading unit 42.
  • the metadata generating unit 41 includes: a metadata generating module 411, configured to generate metadata in the IPTV system, and send the metadata to the metadata uploading unit;
  • the metadata uploading unit 42 includes: a first encapsulating module 421, configured to encapsulate metadata in signaling
  • the sending module 422 is configured to send a signaling message or a media stream.
  • the metadata uploading apparatus 5 includes: an extracting module 51, configured to receive a signaling message or a media stream encapsulated with metadata, and a signaling message. Or extracting metadata in the media stream; the first association module 52 is configured to associate the metadata with the obtained content identifier.
  • the embodiment may further include: a metadata storage unit 6 for storing the metadata.
  • the metadata uploading device 5 in this embodiment may be any device described in the metadata uploading device of the embodiment of the present invention; the terminal 4 may be any terminal described in the terminal of the embodiment of the present invention.
  • the metadata is associated with the content identifier, thereby solving the problem of uploading metadata in the IMS-based IPTV system, and ensuring
  • the IPTV service can normally access the uploaded metadata.
  • the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk. It is not limited thereto; although the embodiments of the present invention have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or some of the technologies. The features are equivalent to the equivalents of the technical solutions of the embodiments of the embodiments of the present invention.

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Description

元数据的上传方法、 装置、 系统及终端 本申请要求于 2008 年 5 月 19 日提交中国专利局、 申请号为 200810098916.X,发明名称为"元数据的上传方法、 装置、 系统及终端"的中国 专利申请的优先权, 其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信领域, 尤其涉及一种元数据的上传方法、 装置、 系统及 终端。 背景技术
目前, 随着链路层传输介质的因特网协议( Internet Protocol , 以下简称: IP )技术的发展以及因特网应用的迅速普及,移动通讯网络和固定通讯网络的 IP化、 因特网和电信网络的融合成为业界公认的发展方向。
为了满足越来越突出的 IP多媒体应用的普遍需求, 第三代合作伙伴计划 ( 3rd Generation Partnership Project, 以下简称: 3GPP )在分组承载网的基础 上引入了全 IP业务网络架构的 IP多媒体子系统( IP Multimedia Subsystem, 以下简称: IMS )。
IMS 是一种全新的多媒体业务形式, 能够满足现在的终端客户更新颖、 更多样化多媒体业务的需求。 IMS 中的主要功能实体包括: 用于控制用户注 册、 会话控制的呼叫控制实体(CSCF ), 用于提供各种业务逻辑控制功能的 应用服务器(AS ), 用于集中管理用户签约数据的归属用户服务器(HSS ) 以 及用于实现与电路交换网互通的媒体网关控制功能(MGCF ) / IP多媒体网关 功能( IM-MGW )。用户设备 ( UE )通过漫游地代理节点( P-CSCF )接入 IMS , 会话和业务触发控制及与 AS的业务控制交互则由归属地服务节点(S-CSCF ) 完成。
IPTV技术 于电信网络技术、 互联网技术、 广播电视网络技术和媒体 传输技术建立起来的一种新型的媒体信息服务技术, 它将数字视频广播内容 进行媒体转换后放在 IP网络上传输, 通过接入网, 使各种 UE能够接收并播 放电视节目。 其中, 基于 IMS的 IPTV系统不但提供基本的直播( BC )业务、 点播(VOD )业务、 录制 (PVR )业务, 而且还提供体现 IMS优势的各种增 强业务, 包括用户产生视频 (Consumer Originated Video, 以下简称: COV ) 业务等。
在上述基本业务和增强业务中存在各种类型的元数据, 主要包括业务元 数据和内容元数据等, 其中业务元数据指 IPTV业务的描述数据, 内容元数据 指 IPTV内容的描述数据。 通常, 元数据的生成包含三种情况, 一种是由内容 提供商(CP )生成元数据, 并提供给服务提供商(SP ), 该元数据主要是内容 元数据; 另一种是由 UE生成内容元数据, 比如: 用户根据输入界面, 输入内 容的描述信息, 由 UE根据用户的输入信息生成内容元数据; 再一种是由网络 的服务提供商生成的元数据,主要是业务元数据,例如 IPTV业务的计费信息、 业务相关媒体内容的部署信息等。
在实现本发明的过程中, 发明人发现: 现有技术中涉及从网络下发元数据到 UE的相关标准和规范,但 于现有技 术的技术解决方案不能实现向网络上传 IPTV元数据, 也无法实现 IPTV业务 中 IPTV终端正常访问上传后的元数据。 发明内容
本发明实施例提供的元数据的上传方法、 装置及系统, 解决在基于 IMS 的 IPTV系统中上传元数据的问题, 保证 IPTV业务能够正常访问上传后的元 数据。
本发明实施例提供的终端, 解决在基于 IMS的 IPTV系统中上传元数据 的问题。
本发明实施例提供了一种元数据的上传方法, 包括:
接收封装有 IPTV元数据的信令消息或媒体流,从所述信令消息或媒体流 中提取所述元数据;
将所述元数据与获得的内容标识进行关联。
本发明实施例提供了一种元数据上传装置, 包括:
提取模块, 用于接收封装有 IPTV系统中元数据的信令消息或媒体流, 从 所述信令消息或媒体流中提取所述元数据;
第一关联模块, 用于将所述元数据与获得的内容标识进行关联。
本发明实施例提供了一种终端, 包括: 元数据生成单元和元数据上传单 元; 其中,
所述元数据生成单元包括:
元数据生成模块, 用于生成 IPTV系统中的元数据, 将所述元数据发送给 所述元数据上传单元;
所述元数据上传单元包括:
第一封装模块, 用于将所述元数据封装在信令消息或媒体流中; 发送模块, 用于发送所述信令消息或媒体流。
本发明实施例提供了一种元数据的上传系统, 包括: 终端、 元数据上传 装置, 其中, 所述终端包括: 元数据生成单元和元数据上传单元;
所述元数据生成单元包括:
元数据生成模块, 用于生成 IPTV系统中的元数据, 将所述元数据发送给 所述元数据上传单元;
所述元数据上传单元包括:
第一封装模块, 用于将所述元数据封装在信令消息或媒体流中; 发送模块 , 用于发送所述信令消息或媒体流;
所述元数据上传装置包括:
提取模块, 用于接收封装有所述元数据的信令消息或媒体流, 从所述信 令消息或媒体流中提取所述元数据;
第一关联模块, 用于将所述元数据与获得的内容标识进行关联。 本发明实施例提供的元数据的上传方法、 装置及系统, 通过上传 IPTV中 元数据,解决了在基于 IMS的 IPTV系统中上传元数据的问题,并且保证 IPTV 业务能够正常访问上传后的元数据。
本发明实施例提供的终端, 通过上传 IPTV中元数据, 解决了在基于 IMS 的 IPTV系统中上传元数据的问题。 附图说明
图 1为本发明实施例一元数据的上传方法的流程图;
图 2为本发明实施例二元数据的上传方法的流程图;
图 3为本发明实施例二元数据的上传方法所适用的网络架构示意图; 图 4为本发明实施例三元数据的上传方法的信令流程图;
图 5为本发明实施例四元数据的上传方法的信令流程图;
图 6为本发明实施例五元数据的上传方法的信令流程图;
图 7为本发明实施例六元数据的上传方法的信令流程图;
图 8为本发明实施例七元数据的上传方法的信令流程图;
图 9为本发明实施例元数据上传装置的示意图;
图 10为本发明实施例终端的示意图;
图 11本发明实施例元数据的上传系统的示意图。 具体实施方式
下面通过附图和实施例, 对本发明实施例的技术方案做进一步的详细描 述。
本发明实施例元数据的上传方法、 装置、 系统及终端可广泛应用于下面 所述的场景中:
某用户在旅游途中看到非常美丽的风景,于是拿出具有 IPTV功能的 UE , 启动向网络上传视频的功能。 在上传过程中, 用户还可对该视频内容添加 "2008年某月某号, 我在阳朔出差 ...... "等描述信息。 某用户参加 IPTV节目的交互式投票, 根据 UE呈现的投票界面, 填写相关 投票结果后, 点击上传投票结果, 则该投票结果以元数据的形式被上传到网 络中。
图 1为本发明实施例一元数据的上传方法的流程图。 本实施例用于 IPTV 系统, 如图 1所示, 本实施例具体包括如下步骤:
步骤 101、 接收封装有 IPTV系统中元数据的信令消息或媒体流, 从该信 令消息或媒体流中提取元数据;
步骤 102、 将元数据与获得的内容标识进行关联。
本实施例通过上传元数据, 将元数据与内容标识进行关联, 解决了在基 于 IMS的 IPTV系统中上传元数据的问题,同时保证 IPTV业务能够正常访问 上传后的元数据。
图 2为本发明实施例二元数据的上传方法的流程图, 图 3为本发明实施 例二元数据的上传方法所适用的网络架构示意图。 本实施例用于 IPTV系统。 如图 3所示, 该网络包括元数据生成单元 11、 元数据上传单元 12、 元数据处 理单元 13以及元数据存储单元 14。 根据该网络架构, 如图 2所示, 本实施例 可以具体包括如下步骤:
步骤 201、 元数据生成单元生成元数据;
该步骤可以包括: 元数据生成单元接收用户的输入信息, 将用户的输入 信息转化为元数据; 也可以根据 UE或 MF釆集的媒体信息 (如: 媒体编解码 格式、 媒体流的地址等信息)生成元数据。
进一步的, 元数据生成单元还可以生成内容标识, 该内容标识为全局唯 一的标识, 可以为 CRID、 TV URL CID、 URL等表现形式。 内容标识可以在 媒体内容上传前生成、 或媒体内容上传中生成、 或媒体内容上传后生成。
步骤 202、 元数据上传单元将元数据 (或者元数据和内容标识 )封装在信 令消息或媒体流中, 发送该信令消息或媒体流;
若步骤 201 中只生成了元数据, 则元数据上传单元将元数据封装在信令 消息或媒体流中; 若步骤 201 中生成了元数据和内容标识, 则元数据上传单 元将元数据和内容标识均封装在信令消息或媒体流中。
发送信令消息或媒体流可以在媒体内容上传前进行、 或媒体内容上传中 进行、 或媒体内容上传后进行。
在媒体内容上传前, 媒体上传中或媒体内容上传后发送信令消息时, 元 数据上传单元将元数据(或元数据和内容标识)封装在信令消息中。 进一步 的,可以将元数据 (或元数据和内容标识 )封装在超文本传输协议 ( Http ) /SIP/ 实时流协议(RTSP ) /预先协商的文件传输协议的信令消息体中。 例如:
将元数据(或元数据和内容标识)封装在 SIP协议的消息体中: 可以通 过邀请(INVITE )请求消息, 携带 content-type: text/plain格式的消息体, 在 该消息体中封装元数据 (或元数据和内容标识); 也可以在新的 message方法 中携带元数据 (或元数据和内容标识);
将元数据(或元数据和内容标识)封装在 Http协议的消息体中:利用 Http 的 post命令, 在 Http的消息体中封装元数据 (或元数据和内容标识);
将元数据(或元数据和内容标识)封装在 RTSP 协议的消息体中: 利用 RTSP的通知( ANNOUNCE )命令, 在 URL确定的节目描述或媒体对象的请 求消息中封装元数据(或元数据和内容标识)。
上述以信令消息封装的方式进行封装而得到的信令消息, 在基于 IMS的 IPTV系统中, 可以通过 Ut ( Htt 协议 ) /Gm ( SIP协议) / Xc ( RTSP协议 ) 接口进行发送。
在媒体内容上传中发送媒体流时, 元数据上传单元可以将元数据(或元 数据和内容标识)封装在媒体流中。 例如:
通过 RTP协议, 携带元数据(或元数据和内容标识): 在 RFC2793中涉 及利用 RTP协议封装文本信息, 其中定义了一种新的 RTP负载名称和相应的 MIME类型 T140 (text/tl40), 利用这种方式封装元数据(或元数据和内容标 釆用 MPEG2-TS 流封装元数据 ( 或元数据和内容标识 ): 釆 用 IEC 61883-4:1998 家用音视频设备-数字接口-第 4部分中关于 MPEG2-TS 数据传输的标准, 可以将元数据(或元数据和内容标识)封装在 MPEG2-TS 流中。
上述以媒体流封装的方式进行封装而得到的媒体流,在基于 IMS的 IPTV 系统中, 可以通过 Xd接口进行发送。
步骤 203、元数据处理单元接收封装有元数据的信令消息或媒体流,从信 令消息或媒体流中提取元数据;
若在步骤 201 中由元数据生成单元生成内容标识, 则信令消息或媒体流 中还封装有该内容标识, 在提取元数据的同时提取内容标识;
若在步骤 201 中元数据生成单元没有生成内容标识, 则信令消息或媒体 流中没有携带内容标识, 在这种情况下, 本步骤还包括由元数据处理单元生 成全局唯一的内容标识。
步骤 204、元数据处理单元将元数据与获得的内容标识进行关联; 在媒体 内容生成后, 元数据处理单元还需要将内容标识和媒体内容进行关联, 这样 通过内容标识, 将建立了媒体内容和元数据的关联关系。
上述将元数据与内容标识进行关联可以具体为: 建立一个包含元数据和 内容标识之间映射关系的第一数据库, 该第一数据库中的一条数据目录中描 述了元数据、 内容标识以及两者之间的映射关系。 上述将内容标识和媒体内 容进行关联可以具体为: 建立一个包含媒体内容的存储位置和内容标识之间 映射关系的第二数据库, 该第二数据库中的一条数据目录中描述了媒体内容 的存储位置、 内容标识以及两者之间的映射关系。
当访问某个元数据时, 通过查找第一数据库, 获得该元数据对应的内容 标识; 再查找第二数据库, 获得内容标识对应的媒体内容的存储位置, 进而 访问到该元数据对应的媒体内容。
步骤 205、 元数据处理单元将元数据的数据格式进行转换; 由于元数据上传单元发送的元数据存在不符合数据格式规范的情况, 为 了保证后续存储时数据格式的一致性, 可以将不符合标准格式的元数据转换 为统一的标准格式。 当不需要进行数据格式转换时, 本实施例可以不包括步 骤 205。
步骤 206、 元数据存储单元将元数据进行存储;
元数据存储单元将处理完成的元数据按照一定的规则 (可以为预先设定 的规则)进行存储, 该元数据存储单元可以是一个单独的网元, 也可以为集 成在元数据处理单元等网络实体中的功能实体。
本实施例中具体介绍了将元数据封装在信令消息或媒体流中, 并通过 Ut/Gm/Xc/Xd接口上传给元数据处理单元, 解决了在基于 IMS的 IPTV系统 中上传元数据的问题; 与此同时, 在元数据处理单元中将元数据与内容标识 进行关联, 而内容标识与媒体内容也存在关联关系, 从而建立了元数据与媒 体内容的关联关系, 因此保证 IPTV业务能够正常访问上传后的元数据。
下面以 COV业务为例,通过几个实施例进一步介绍本发明实施例元数据 的上传方法的技术方案。
图 4为本发明实施例三元数据的上传方法的信令流程图。 本实施例用于 IPTV系统, 其中元数据生成单元和元数据上报单元集成在 UE中, 元数据处 理单元在业务控制功能实体( Service Control Function, 以下简称: SCF ) 中, 元数据存储单元在内容数据功能实体( Content Profile Service Function, 以下 简称: CPSF ) 中。 在图 4所示的步骤之前, UE从网络下载 COV内容信息输 入界面, 或者在会话过程中, 网络向 UE发送元数据输入页面链接, 用户点击 该链接后, 下载 COV内容信息输入界面; 用户根据 COV内容信息输入界面 输入信息。 如图 4所示, 本实施例具体包括如下步骤:
步骤 301、 UE中的元数据生成单元将用户的输入信息进行相关处理, 生 成元数据, 同时 UE还根据 COV内容或用户的其他操作等, 生成其他的元数 据; 上述全部的元数据可以以可扩展标识语言 (Extensible Marked Language, 以下简称: XML ) 的格式进行生成, 也可以以其他描述格式进行生成; 据上传单元根据 UE和 SCF之间釆用的接口(本实施例为 Ut接口)和协议(本 实施例为 Http协议),将元数据封装在协议的消息体中,该消息体即信令消息, 将信令消息发送给元数据处理单元 SCF;
本实施例釆用 Http的 post命令, post命令的消息体内携带元数据。
步骤 303、 元数据处理单元接收到信令消息后, 对信令消息进行解码, 提 取出元数据;
步骤 304、 由于 UE没有生成内容标识, 因此元数据处理单元对信令消息 进行解码没有提取出内容标识, 元数据处理单元需要生成全局唯一的内容标 识; 然后, 将内容标识和元数据进行关联; 在媒体内容生成后, 元数据处理 单元还需要将内容标识和媒体内容进行关联, 这样通过内容标识, 建立了媒 体内容和元数据的关联关系,以保证处理之后的元数据能够被 IPTV业务正常 访问;
步骤 305、元数据处理单元还可以具备元数据格式转换功能, 可将不符合 标准存储格式的元数据和内容标识转换为标准存储格式; 本步骤为可选步骤; 步骤 306、 元数据处理单元通过接口 (SCF和 CPSF之间的接口), 根据 私有协议或非私有协议, 将处理好的元数据发送到元数据存储单元, 元数据 存储单元按照内部的元数据存储规则, 对元数据进行存储; 该接口可以为内 部接口, 也可以为外部接口。
本实施例中的元数据生成单元不仅限于在 UE中,在基于 IMS的 IPTV系 统中, 该元数据生成单元还可以位于 SCF或 MF或 CPSF中; 元数据处理单 元不仅限于在 SCF中, 还可以在 MF或 SSF或 CPSF中; 元数据存储单元可 以在 CPSF、 UPSF、 SCF, SSF等实体中, 也可能是一个单独的实体, 可以集 成在 SCF或 SSF或其他网络实体中。
本实施例中具体介绍了可根据 Http协议将元数据封装在信令消息中, 并 通过 Ut接口上传给元数据处理单元, 解决了在基于 IMS的 IPTV系统中上传 元数据的问题; 与此同时, 在元数据处理单元中将元数据与内容标识进行关 联, 而内容标识与媒体内容也存在关联关系, 从而建立了元数据与媒体内容 的关联关系, 因此保证 IPTV业务能够正常访问上传后的元数据。
图 5 为本发明实施例四元数据的上传方法的信令流程图。 本实施例用于 IPTV系统, 其中元数据生成单元和元数据上报单元集成在 UE中, 元数据处 理单元在 SCF中, 元数据存储单元在 CPSF中。 在图 5所示的步骤之前, UE 从网络下载 COV内容信息输入界面, 或者在会话过程中, 网络向 UE发送元 数据输入页面链接, 用户点击该链接后, 下载 COV内容信息输入界面; 用户 根据 COV内容信息输入界面输入信息。 如图 5所示, 本实施例具体包括如下 步骤:
步骤 401、 UE中的元数据生成单元将用户的输入信息进行相关处理, 生 成元数据, 同时 UE还根据 COV内容或用户的其他操作等, 生成其他的元数 据; 上述全部的元数据可以以 XML的格式进行生成, 也可以以其他描述格式 进行生成; 并且, 元数据生成单元还生成全局唯一的内容标识;
步骤 402、元数据生成单元将生成的元数据和内容标识发送给元数据上传 单元, 元数据上传单元根据 UE和 SCF之间釆用的接口 (本实施例为 Gm接 口)和协议(本实施例为 SIP协议), 将元数据和内容标识封装在 SIP协议的 消息体中, 该消息体即信令消息, 将信令消息发送给元数据处理单元 SCF; 本实施例可以釆用 SIP协议的 SDP消息体携带元数据和内容标识, 通过 SIP信令上传给元数据处理单元; 具体的说, 若在媒体内容上传之前发送信令 消息 , 可以通过邀请请求消息 , 携带 content-type:text/plain格式的消息体 , 在 这些消息体中携带元数据和内容标识; 若在媒体内容上传过程中发送信令消 息, 可以通过定义新的 message方法,在该 message方法的消息体中携带元数 据和内容标识; 若在媒体内容上传之后信令消息, 可以通过 INFO或 NOTIFY 等消息体携带元数据和内容标识。 步骤 403、 元数据处理单元接收到信令消息后, 对信令消息进行解码, 提 取出元数据和内容标识;
步骤 404、 由于对信令消息进行解码提取出内容标识, 则, 元数据处理单 元将内容标识和元数据进行关联; 在媒体内容生成后, 元数据处理单元还需 要将内容标识和媒体内容进行关联, 这样通过内容标识, 将建立了媒体内容 和元数据的关联关系, 以保证处理之后的元数据能够被 IPTV业务正常访问; 步骤 405、元数据处理单元还可以具备元数据格式转换功能, 可将不符合 标准存储格式的元数据和内容标识转换为标准存储格式; 本步骤为可选步骤; 步骤 406、元数据处理单元通过接口(该接口为 SCF和 CPSF之间的接口), 根据私有协议或非私有协议, 将处理好的元数据发送到元数据存储单元, 元 数据存储单元按照内部的元数据存储规则, 对元数据进行存储; 该接口可以 为内部接口, 也可以为外部接口。
本实施例中的元数据生成单元不仅限于在 UE中, 还可以在 SCF或 MF 中; 元数据处理单元不仅限于在 SCF中, 还可以在 MF或 SSF或 CPSF中; 元数据存储单元可以在 CPSF、 UPSF、 SCF, SSF等实体中, 也可能是一个单 独的实体。
本实施例中具体介绍了可根据 SIP协议将元数据和内容标识封装在信令 消息中, 并通过 Gm接口上传给元数据处理单元, 解决了在基于 IMS的 IPTV 系统中上传元数据的问题; 与此同时, 在元数据处理单元中将元数据与内容 标识进行关联, 而内容标识与媒体内容也存在关联关系, 从而建立了元数据 与媒体内容的关联关系, 因此保证 IPTV业务能够正常访问上传后的元数据。
图 6为本发明实施例五元数据的上传方法的信令流程图。 本实施例用于 IPTV系统, 其中元数据生成单元和元数据上报单元集成在 UE中, 元数据处 理单元在 MF中, 元数据存储单元在 CPSF中。 在图 6所示的步骤之前, UE 从网络下载 COV内容信息输入界面, 或者在会话过程中, 网络向 UE发送元 数据输入页面链接, 用户点击该链接后, 下载 COV内容信息输入界面; 用户 根据 COV内容信息输入界面输入信息。 如图 6所示, 本实施例具体包括如下 步骤:
步骤 501、 UE中的元数据生成单元将用户的输入信息进行相关处理, 生 成元数据, 同时 UE还根据 COV内容或用户的其他操作等, 生成其他的元数 据; 上述全部的元数据可以以 XML的格式进行生成, 也可以以其他描述格式 进行生成; 据上传单元根据 UE和 MF之间釆用的接口(本实施例为 Xd接口)和协议(本 实施例为 MPEG2 - TS或 RTP协议 ),将元数据封装在该协议中; UE使用 RTP 协议或 MPEG2 - TS等方式元数据进行封装, 得到媒体流, 并通过 Xd接口上 传到元数据处理单元;
若釆用 MPEG2 - TS方式, 可以根据 IEC 61883 - 4: 1998家用音视频设 备-数字接口 -第 4 部分中 MPEG2 - TS 数据传输规范, 将元数据复用在 MPEG2 - TS流中; 在这种情况下 , MF需要具有从 MPEG2-TS流中提取元数 据的能力;
若釆用 RTP协议, 可以根据类似 RFC2793中所涉及的利用 RTP协议封 装文本信息的方法, 定义一种新的 RTP 负载名称和相应的 MIME类型, 如 RFC2793中定义的 T140 ( text/tl40 ),利用这种方式来封装元数据; 与此同时, 需要根据上述方式, 对现有的 RTP协议进行增强, 并且需要增强 MF, 使得 MF具有从 RTP媒体流中提取元数据的能力。
步骤 503、 元数据处理单元接收到媒体流后, 对媒体流进行解复用, 提取 出元数据;
步骤 504、 由于对媒体流进行解复用没有提取出内容标识, 元数据处理单 元需要生成全局唯一的内容标识; 然后, 将内容标识和元数据进行关联; 在 媒体内容生成后, 元数据处理单元还需要将内容标识和媒体内容进行关联, 这样通过内容标识, 将建立了媒体内容和元数据的关联关系, 以保证处理之 后的元数据能够被 IPTV业务正常访问;
步骤 505、元数据处理单元还可以具备元数据格式转换功能, 可将不符合 标准存储格式的元数据和内容标识转换为标准存储格式; 本步骤为可选步骤; 步骤 506、 元数据处理单元通过接口, 根据私有协议或非私有协议, 将处 理好的元数据发送到元数据存储单元, 元数据存储单元按照内部的元数据存 储规则, 对元数据进行存储; 该接口可以为内部接口, 也可以为外部接口。
本实施例也可以在步骤 501 中, 由元数据生成单元生成全局唯一的内容 标识; 在步骤 502 中, 将元数据和内容标识均封装在媒体流中; 在步骤 503 中, 对媒体流解复用, 提取出元数据和内容标识; 在步骤 504 中, 无需生成 内容标识, 将提取出来的元数据和内容标识进行关联。
本实施例中的元数据生成单元不仅限于在 UE中, 还可以在 SCF或 MF 或 CPSF中;元数据处理单元不仅限于在 MF中,还可以在 SCF或 SSF或 CPSF 中; 元数据存储单元可以在 CPSF、 SCF, SSF, UPSF等实体中, 也可能是一 个单独的实体。
本实施例中具体介绍了可使用 RTP协议或 MPEG2 - TS等方式将元数据 (或元数据和内容标识)封装在媒体流中, 并通过 Xd接口上传给元数据处理 单元, 解决了在基于 IMS的 IPTV系统中上传元数据的问题; 与此同时, 在 元数据处理单元中将元数据与内容标识进行关联, 而内容标识与媒体内容也 存在关联关系, 从而建立了元数据与媒体内容的关联关系, 因此保证 IPTV业 务能够正常访问上传后的元数据。
图 7为本发明实施例六元数据的上传方法的信令流程图。 本实施例用于 IPTV系统, 其中元数据生成单元和元数据上报单元集成在 UE中, 元数据处 理单元在 MF中, 元数据存储单元在 CPSF中。 在图 7所示的步骤之前, UE 从网络下载 COV内容信息输入界面, 或者在会话过程中, 网络向 UE发送元 数据输入页面链接, 用户点击该链接后, 下载 COV内容信息输入界面; 用户 根据 COV内容信息输入界面输入信息。 如图 7所示, 本实施例具体包括如下 步骤:
步骤 601、 UE中的元数据生成单元将用户的输入信息进行相关处理, 生 成元数据, 同时 UE还根据 COV内容或用户的其他操作等, 生成其他的元数 据; 上述全部的元数据可以以 XML的格式进行生成, 也可以以其他描述格式 进行生成; 据上传单元通过 SCF与 MF协商新的媒体传输通道 (包括协商的文件传输协 议, 传输端口等), 协商成功后, 元数据上传单元将元数据封装在该协商釆用 的文件传输协议中, 得到信令消息, 并通过协商的文件传输端口上传到元数 据处理单元;
UE经过 IMS核心网, 通过 SCF和 MF协商确定文件传输通道, UE获取 文件传输通道的相关信息, 该相关信息包括但不仅限于文件传输协议、 文件 传输端口等; 其中, SCF作为协商的一个实体, 主要起到 UE和 MF之间的桥 梁作用; 协商的文件传输协议可以为 Http/FTP/FLUTE等文件传输协议; 本实 施例 UE具有传输通道协商功能, 用于和网络侧实体协商文件传输通道。
步骤 603、 元数据处理单元接收到信令消息后, 对信令消息进行解码, 提 取出元数据;
步骤 604、 由于对信令消息进行解码没有提取出内容标识, 元数据处理单 元需要生成全局唯一的内容标识; 然后, 将内容标识和元数据进行关联; 在 媒体内容生成后, 元数据处理单元还需要将内容标识和媒体内容进行关联, 这样通过内容标识, 将建立了媒体内容和元数据的关联关系, 以保证处理之 后的元数据能够被 IPTV业务正常访问;
步骤 605、元数据处理单元还可以具备元数据格式转换功能, 可将不符合 标准存储格式的元数据和内容标识转换为标准存储格式; 本步骤为可选步骤; 步骤 606、 元数据处理单元通过接口, 根据私有协议或现有协议, 将处理 好的元数据发送到元数据存储单元, 元数据存储单元按照内部的元数据存储 规则, 对元数据进行存储; 该接口可以为内部接口, 也可以为外部接口。 本实施例中的元数据生成单元不仅限于在 UE中, 还可以在 SCF或 MF 或 CPSF中;元数据处理单元不仅限于在 MF中,还可以在 SCF或 SSF或 CPSF 中; 元数据存储单元可以在 CPSF或 SCF或 UPSF或 SSF等实体中, 也可能 是一个单独的实体。
本实施例中具体介绍了可使用协商的文件传输协议将元数据封装在信令 消息中, 并通过协商的文件传输端口上传给元数据处理单元, 解决了在基于 IMS的 IPTV系统中上传元数据的问题; 与此同时, 在元数据处理单元中将元 数据与内容标识进行关联, 而内容标识与媒体内容也存在关联关系, 从而建 立了元数据与媒体内容的关联关系,因此保证 IPTV业务能够正常访问上传后 的元数据。
图 8为本发明实施例七元数据的上传方法的信令流程图。 本实施例用于 IPTV系统中, 其中元数据生成单元和元数据上报单元集成在 UE中, 元数据 处理单元在 MF中, 元数据存储单元在 CPSF中。 在图 8所示的步骤之前, UE从网络下载 COV内容信息输入界面, 或者在会话过程中, 网络向 UE发 送元数据输入页面链接, 用户点击该链接后, 下载 COV内容信息输入界面; 用户根据 COV内容信息输入界面输入信息。 如图 8所示, 本实施例具体包括 如下步骤:
步骤 701、 UE中的元数据生成单元将用户的输入信息进行相关处理, 生 成元数据, 同时 UE还根据 COV内容或用户的其他操作等, 生成其他的元数 据; 上述全部的元数据可以以 XML的格式进行生成, 也可以以其他描述格式 进行生成; 据上传单元根据 UE和 MF之间釆用的接口(本实施例为 Xc接口)和协议(本 实施例为 RTSP协议), 将元数据封装在 RTSP协议的消息体中, 该消息体即 信令消息, 将信令消息发送给元数据处理单元 SCF; 本实施例可以釆用 RTSP协议的 ANNOUNCE命令来携带元数据, 该命 令用于发出请求 URL确定的节目描述或媒体对象。
步骤 703、 元数据处理单元接收到信令消息后, 对信令消息进行解码, 提 取出元数据;
步骤 704、 由于对信令消息进行解码没有提取出内容标识, 元数据处理单 元需要生成全局唯一的内容标识; 然后, 将内容标识和元数据进行关联; 在 媒体内容生成后, 元数据处理单元还需要将内容标识和媒体内容进行关联, 这样通过内容标识, 将建立了媒体内容和元数据的关联关系, 以保证处理之 后的元数据能够被 IPTV业务正常访问;
步骤 705、元数据处理单元还可以具备元数据格式转换功能, 可将不符合 标准存储格式的元数据和内容标识转换为标准存储格式; 本步骤为可选步骤; 步骤 706、 元数据处理单元通过接口, 根据私有协议或非私有协议, 将处 理好的元数据发送到元数据存储单元, 元数据存储单元按照内部的元数据存 储规则, 对元数据进行存储; 该接口可以为内部接口, 也可以为外部接口。
本实施例中的元数据生成单元不仅限于在 UE中, 还可以在 SCF或 MF 或 CPSF中;元数据处理单元不仅限于在 MF中,还可以在 SCF或 SSF或 CPSF 中; 元数据存储单元可以在 CPSF或 SCF或 UPSF或 SSF等实体中, 也可能 是一个单独的实体。
本实施例中具体介绍了可使用 RTSP协议将元数据封装在信令消息中,并 通过 Xc接口上传给元数据处理单元,解决了在基于 IMS的 IPTV系统中上传 元数据的问题; 与此同时, 在元数据处理单元中将元数据与内容标识进行关 联, 而内容标识与媒体内容也存在关联关系, 从而建立了元数据与媒体内容 的关联关系, 因此保证 IPTV业务能够正常访问上传后的元数据。
图 9为本发明实施例元数据上传装置的示意图, 该元数据上传装置用于 IPTV系统中, 可以具体为元数据处理单元, 如图 9所示, 具体包括: 提取模 块 21 , 用于接收封装有 IPTV系统中元数据的信令消息或媒体流, 从信令消 息或媒体流中提取元数据; 第一关联模块 22, 用于将元数据与获得的内容标 识进行关联。
本实施例还可以包括: 第二关联模块 23 , 用于将内容标识与媒体内容进 行关联; 生成模块 24, 用于生成全局唯一的内容标识; 转换模块 25, 用于将 元数据的数据格式进行转换。
本实施例通过接收封装有元数据的信令消息或媒体流,将元数据与内容标识 进行关联, 解决了在基于 IMS的 IPTV系统中上传元数据的问题, 同时保证 IPTV业务能够正常访问上传后的元数据。
图 10为本发明实施例终端的示意图。 本实施例用于 IPTV系统中, 如图 10所示, 具体包括: 元数据生成单元 31和元数据上传单元 32。
元数据生成单元 31 可以包括: 元数据生成模块 311 , 用于生成 IPTV系 统中的元数据, 将元数据发送给元数据上传单元。 元数据上传单元 32可以包 括:第一封装模块,用于将元数据封装在信令消息或媒体流中;发送模块 321 , 用于发送信令消息或媒体流。
元数据生成单元 31还可以包括: 内容标识生成模块 312, 用于生成全局 唯一的内容标识。 第一封装模块可以具体为第二封装模块 322, 用于将元数据 和内容标识封装在信令消息或媒体流中。
本实施例通过生成元数据,将元数据以信令消息封装的方式或媒体流封装的 方式进行封装, 得到封装有元数据的信令消息或媒体流并发送, 解决了在基 于 IMS的 IPTV系统中上传元数据的问题。
图 11 为本发明实施例元数据的上传系统的示意图。 本实施例用于 IPTV 系统中, 如图 11所示, 具体包括: 终端 4和元数据上传装置 5, 终端 4包括: 元数据生成单元 41和元数据上传单元 42。
元数据生成单元 41 包括: 元数据生成模块 411 , 用于生成 IPTV系统中 的元数据, 将元数据发送给元数据上传单元;
元数据上传单元 42包括: 第一封装模块 421 , 用于将元数据封装在信令 消息或媒体流中; 发送模块 422, 用于发送信令消息或媒体流; 元数据上传装置 5包括: 提取模块 51 , 用于接收封装有元数据的信令消 息或媒体流, 从信令消息或媒体流中提取元数据; 第一关联模块 52, 用于将 元数据与获得的内容标识进行关联。
本实施例还可以包括: 元数据存储单元 6, 用于将元数据进行存储。 本实施例中的元数据上传装置 5 可以为本发明实施例元数据上传装置中 所描述的任一装置; 终端 4可以为本发明实施例终端中所描述的任一终端。 本实施例通过接收封装有元数据的信令消息或媒体流,将元数据与内容标识 进行关联, 解决了在基于 IMS的 IPTV系统中上传元数据的问题, 同时保证
IPTV业务能够正常访问上传后的元数据。
本领域普通技术人员可以理解: 实现上述方法实施例的全部或部分步骤 可以通过程序指令相关的硬件来完成, 前述的程序可以存储于一计算机可读 取存储介质中, 该程序在执行时, 执行包括上述方法实施例的步骤, 而前述 的存储介质包括: ROM、 RAM, 磁碟或者光盘等各种可以存储程序代码的介 质。 非对其限制; 尽管参照前述实施例对本发明实施例进行了详细的说明, 本领 域的普通技术人员应当理解: 其依然可以对前述各实施例所记载的技术方案 进行修改, 或者对其中部分技术特征进行等同替换; 而这些修改或者替换, 并不使相应技术方案的本质脱离本发明实施例各实施例技术方案的精神和范 围。

Claims

权 利 要 求 书
1、 一种元数据的上传方法, 其特征在于包括:
接收封装有 IPTV元数据的信令消息或媒体流,从所述信令消息或媒体流中 提取所述元数据;
将所述元数据与获得的内容标识进行关联。
2、 根据权利要求 1所述的元数据的上传方法,其特征在于还包括: 将所述 内容标识与媒体内容进行关联。
3、 根据权利要求 1所述的元数据的上传方法,其特征在于,在所述提取元 数据之后还包括: 生成全局唯一的所述内容标识。
4、 根据权利要求 1所述的元数据的上传方法,其特征在于,所述信令消息 或媒体流中封装有所述内容标识, 所述方法还包括: 从所述信令消息或媒体流 中提取所述内容标识。
5、 根据权利要求 3所述的元数据的上传方法,其特征在于,在所述接收信 令消息或媒体流之前还包括:
终端生成所述元数据;
所述终端将所述元数据封装在所述信令消息或媒体流中;
所述终端发送所述信令消息或媒体流。
6、 根据权利要求 4所述的元数据的上传方法,其特征在于,在所述接收信 令消息或媒体流之前还包括:
所述终端生成所述元数据和全局唯一的所述内容标识;
所述终端将所述元数据和所述内容标识封装在所述信令消息或媒体流中; 所述终端发送所述信令消息或媒体流。
7、 根据权利要求 1所述的元数据的上传方法,其特征在于,在将所述元数 据与获得的内容标识进行关联之后还包括: 将所述元数据的数据格式进行转换。
8、 根据权利要求 5或 6所述的元数据的上传方法,其特征在于,所述终端 生成元数据包括: 接收用户的输入信息, 将所述用户的输入信息转化为所述元 数据。
9、 根据权利要求 5或 6所述的元数据的上传方法,其特征在于,所述终端 发送信令消息或媒体流包括: 所述终端通过 Ut接口或 Gm接口或 Xd接口或 Xc 接口或预先协商的文件传输通道发送信令消息或媒体流。
10、 根据权利要求 5或 6所述的元数据的上传方法, 其特征在于, 所述封 装在信令消息中具体为:封装在 HTTP或 SIP或 RTSP或预先协商的文件传输协 议的信令消息中。
1 1、 根据权利要求 5或 6所述的元数据的上传方法, 其特征在于, 所述封 装在媒体流中具体为: 封装在 MPEG2-TS流中或通过 RTP协议进行封装。
12、 一种元数据上传装置, 其特征在于包括:
提取模块(21 ), 用于接收封装有 IPTV系统中元数据的信令消息或媒体流, 从所述信令消息或媒体流中提取所述元数据;
第一关联模块( 22 ), 用于将所述元数据与获得的内容标识进行关联。
13、 根据权利要求 12所述的元数据上传装置, 其特征在于还包括: 第二关 联模块( 23 ), 用于将所述内容标识与媒体内容进行关联。
14、 根据权利要求 12所述的元数据上传装置, 其特征在于还包括: 生成模 块(24 ), 用于生成全局唯一的所述内容标识。
15、 根据权利要求 12所述的元数据上传装置, 其特征在于还包括: 转换模 块(25 ), 用于将所述元数据的数据格式进行转换。
16、 一种终端, 其特征在于包括: 元数据生成单元(31 )和元数据上传单 元(32 ); 其中,
所述元数据生成单元(31 ) 包括:
元数据生成模块(311 ), 用于生成 IPTV系统中的元数据, 将所述元数据发 送给所述元数据上传单元 ( 32 );
所述元数据上传单元 ( 32 ) 包括:
第一封装模块, 用于将所述元数据封装在信令消息或媒体流中; 发送模块(321 ), 用于发送所述信令消息或媒体流。
17、 根据权利要求 16所述的终端, 所述元数据生成单元还包括: 内容标识 生成模块(312 ), 用于生成全局唯一的内容标识;
所述第一封装模块具体为第二封装模块(322 ), 用于将所述元数据和所述 内容标识封装在信令消息或媒体流中。
18、 一种元数据的上传系统, 其特征在于包括: 终端 (4 )、 元数据上传装 置(5 ); 其中, 所述终端 (4 ) 包括: 元数据生成单元(41 )和元数据上传单元
( 42 );
所述元数据生成单元(41 ) 包括:
元数据生成模块(411 ), 用于生成 IPTV系统中的元数据, 将所述元数据发 送给所述元数据上传单元;
所述元数据上传单元 ( 42 ) 包括:
第一封装模块(421 ), 用于将所述元数据封装在信令消息或媒体流中; 发送模块 ( 422 ), 用于发送所述信令消息或媒体流;
所述元数据上传装置 ( 5 ) 包括:
提取模块(51 ), 用于接收封装有所述元数据的信令消息或媒体流, 从所述 信令消息或媒体流中提取所述元数据;
第一关联模块( 52 ), 用于将所述元数据与获得的内容标识进行关联。
19、 根据权利要求 18所述的元数据的上传系统, 其特征在于还包括: 元数 据存储单元( 6 ), 用于将所述元数据进行存储。
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