KR20140086358A - Method for media contents sharing over inter-homenetwork - Google Patents

Method for media contents sharing over inter-homenetwork Download PDF

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Publication number
KR20140086358A
KR20140086358A KR1020120156728A KR20120156728A KR20140086358A KR 20140086358 A KR20140086358 A KR 20140086358A KR 1020120156728 A KR1020120156728 A KR 1020120156728A KR 20120156728 A KR20120156728 A KR 20120156728A KR 20140086358 A KR20140086358 A KR 20140086358A
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South Korea
Prior art keywords
home
media
content
media content
server
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KR1020120156728A
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Korean (ko)
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강민균
장광현
김성민
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(주)이공감
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Priority to KR1020120156728A priority Critical patent/KR20140086358A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L12/2807—Exchanging configuration information on appliance services in a home automation network
    • H04L12/2812—Exchanging configuration information on appliance services in a home automation network describing content present in a home automation network, e.g. audio video content
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L12/2816—Controlling appliance services of a home automation network by calling their functionalities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L12/283—Processing of data at an internetworking point of a home automation network
    • H04L12/2832—Interconnection of the control functionalities between home networks

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Multimedia (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

The present invention relates to a system and method for media content sharing between home networks, and more particularly, to a system and method for sharing media content between home networks, A system and method for media content sharing between home networks to collect media content information and to receive specific media content in real time.

Figure P1020120156728

Description

A method for sharing media contents between home networks,

The present invention relates to a system and method for sharing media content between home networks, and more particularly, to a system and method for media content sharing between home networks, and more particularly, Home media content sharing system and method for collecting media content information existing in an external home connected through the Internet in a home network and receiving specific media content in real time.

Home network technology refers to a technology that provides a future-oriented home environment in which home appliances in the home are connected to a wired / wireless network so that various high-quality home services can be provided without restriction of time and place.

Generally, in a home network environment, a service platform that can accommodate information appliances in a home network in order to provide services through various information appliances in the home is needed. With this service platform, the user can easily and conveniently use the high quality home service provided through various types of information appliances in the home.

Examples of the digital home service include home entertainment services such as Internet TV (IPTV) and video on demand (VoD), home data communication services such as contents, data sharing, VoIP and video telephony, , Remote meter reading, crime prevention, and disaster prevention services.

Among these, there is Digital Living Network Alliance (DLNA) as a representative organization providing standard guidelines for home AV media devices and networking, media transmission method, content sharing, and media format between devices.

In order to share and control information among different AV media devices in a digitalized home network environment, DLNA has developed a digital home network platform based on a UPnP AV structure, a media format, a content protection scheme, and a standard for interoperability between media devices present.

Currently, DLNA has released the "Home Networked Device Interoperability Guidelines v1.0" Recommendation in 2004 as a guideline standard. This Recommendation defines a set of core conditions and their implementation to enable PCs and various home appliances to share digital content with each other.

In addition, this Recommendation is a guideline that outlines much of the existing PC and Internet standards. It is a guideline that covers a wide range of topics such as wired and wireless Ethernet, Internet protocol, universal plug and play software, basic image, audio and video formats (JPEG, LPCM, MPEG-2) .

However, since this Recommendation focuses on the interoperability between network and media devices and media contents in a digital home, there is no standardization for the search and transmission of multimedia contents among various homes.

In addition, as described in this recommendation, when the DLNA device discovery message and the notification message are transmitted through the IP multicast method, it is impossible to ensure that the IP multicast service is normally performed in the Internet range. Therefore, There is a problem that it can not be retrieved / controlled remotely via the Internet.

In addition, DLNA obtains IP addresses of home media devices using DHCP or Auto-IP. If the home network is configured based on a private IP, when a specific DMS device performs media streaming using a private IP address, a media packet is not transmitted to an external home connected to the Internet.

Accordingly, in order to retrieve the services of the DLNA devices existing in the external home network connected through the Internet, and to use the media content information provided by the DLNA devices, there is a desperate need to acquire DLNA device and service information between the home sites in real time Is required.

Disclosure of Invention Technical Problem [8] The present invention has been proposed in order to solve the above-mentioned problems and to meet the above-mentioned needs, and it is an object of the present invention to provide a home network including a DLNA (Digital Living Network Alliance) Network media content sharing system and method for collecting media content information existing in a home network and allowing specific media content to be received in real time.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. It will also be readily apparent that the objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims.

The present invention relates to a media content sharing system between home networks, which comprises a home network based on DLNA (Digital Living Network Alliance), having a public IP address, a home IP network A home server information registration processor for registering / updating an IP address and access control information of the home server in an external location information management server and searching the IP address of the home server from the location information management server, A content sharing management unit for processing a received event message and providing a list of media contents and meta information collected in a home or an external home to which the user belongs and controlling reproduction of specific media content selected through the application program; According to the control of the content sharing management unit, A local controller for receiving the media content payload from the terminal in the home and delivering the media content payload to the external home through the external home, An external control unit for generating a corresponding request message upon receiving a requesting event and delivering the corresponding request message to the external home and transmitting message information received from the external home to the content sharing management unit as a result, A media forwarding channel is opened to transmit the media content from the home-use private IP-based premises to the public home based on the public IP, or the media content data received from the outside home to the home premises having the private IP Packet forwarding function And a media forwarding processor for performing the media forwarding process.

As described above, the present invention provides interworking functions for content collection and streaming between dynamic private IP-based home networks connected through the Internet, so that the media contents existing in the home network, There is an effect that reproduction can be performed using the reproduction apparatus.

Also, the present invention can share multi-media content resources existing in a plurality of homes, thereby saving the cost of content storage, which would be incurred by storing the same content in each home.

In addition, even when the IP address of the home server apparatus changes dynamically, the present invention has the effect of notifying the external location information management server in real time of the changed address, and enabling the home server apparatus to be easily located outside by using the host name .

1 is a block diagram of an embodiment of a DLNA-based home network system to which the present invention is applied;
FIG. 2 is a diagram illustrating an exemplary functional component of an AV media device for home networking presented in the DLNA standard;
3 is a block diagram of a system for sharing a media content among home networks according to an embodiment of the present invention.
FIG. 4 is a flowchart illustrating a process of searching a media content list from an external home among the home network media content sharing methods according to the present invention.
FIG. 5 is a flowchart illustrating a process of receiving media content from an external home in a method of sharing media contents among home networks according to the present invention.

The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, in which: There will be. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. In the following detailed description, a Reed-Solomon code will be described as an example of an error correction code. Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a DLNA-based home network system to which the present invention is applied.

1, the DLNA-based home network system to which the present invention is applied includes a private IP-based home network including home servers 100 and 200 and home DLNA terminals 110, 120 and 130, a location information management server 300, (Internet) based on a public IP that is connected to the Internet.

Here, the home servers 100 and 200 are equipped with a home network inter-media content sharing system having one public IP for interworking with a home network and an external network (Internet), and sharing media contents between home networks via the Internet have.

At this time, the home network inter-home network content sharing system installed in the home servers 100 and 200 has a public IP address for carrying out connection between a home network constituted by a private IP network and an external network (Internet), and is connected through an external network A function of transmitting a media content list search request and a transmission request from the media playback terminal device and transmitting the information about the media content provided by the DMS servers in the home to the media playback terminal via the external network .

In order to allow a user to retrieve and play back media contents in an external home in real time, the media playback terminal includes a DMP device class module and a media sharing application program.

That is, the media playback terminal in the home network uses a conventional DLNA-based communication mechanism in the home to obtain a list and detailed information of various media contents distributed in the home and external grooves, Obtains a list and detailed information of corresponding contents through a media content sharing system between home networks. In addition, the DMP device class module and the media sharing application program installed in the media playback terminal device can play specific media contents in the content list in real time.

The location information management server 300 exists in an external network (Internet) and manages dynamic address information of a home server (media content sharing system between home networks). That is, the location information management server 300 stores and manages the IP address of the dynamically changed home server apparatus, so that it can easily find the home server apparatus using the host name from the outside.

Meanwhile, the DLNA terminals 110, 120, 130, and 220 in the respective homes are allocated dynamic IP addresses through the DHCP (Dinamic Host Configuration Protocol) communication with the home servers 100 and 200 of the home network to which the DLNA terminals 110, 120,

At this time, some terminals (100, 200, 120, and 130) that can use the display include both the DMS device class and the DMP device class defined in the DLNA specification (DLNA guideline ver 1.0). That is, the DLNA device class is divided into a digital media server (DMS) and a digital media player (DMP).

Among them, the DMS performs MSD (Media Server Device) function and HTTP server function in the UPnP AV specification, that is, serves as a server for providing media, and DMP is a server for selecting Media Server Control Point (MSCP) Control, and playback.

Hereinafter, the functional components required for the AV media device for home networking, which are presented in the DLNA standard 1.1 (DLNA guideline ver. 1.0), will be described with reference to FIG.

2 is an explanatory diagram of functional components of an AV media device for home networking presented in the DLNA standard.

As shown in FIG. 2, the functional components of the AV media device presented in the DLNA standard include networking and connectivity, device discovery & control, media management, media transmission Media Transport).

The technical element for "connectivity" among the functional components is "Ethernet, wireless (802.11) UPnP AV v1.0 "is a technical element for" media management and control "among functional components, and" media format "of functional components There are "Required and Optional Format Profiles" for technical elements and "HTTP 1.0 / 1.1" for technical components for "Media Transmission" among functional components.

Hereinafter, a configuration of a media content sharing system between home networks according to an embodiment of the present invention will be described with reference to FIG.

3 is a block diagram of a media content sharing system between home networks according to an embodiment of the present invention.

3, the home network inter-network media content sharing system 101, 201 includes a home server information registration processing unit 112, a content sharing management unit 111, a LDMS (Local DMS) (External DMS) control units 114 and 214 and media forwarding processing units 113 and 213, respectively.

The home server information registration processing units 112 and 212 register and update the IP address and access control information of the home servers 100 and 200 on which the home servers 100 and 200 are installed, And retrieves the IP address information of the system (101, 201).

Upon receiving a content list request and a media transmission start / end event from the user through the application program, the content sharing management units 111 and 211 may interwork with the LDMS control units 115 and 215 and the EDMS control units 114 and 214, Collects the media content list and meta information, informs the corresponding application program, and delivers the corresponding event to the media forwarding processor 113 or 213 when a streaming transmission start / end event of the specific media content occurs.

The LDMS (Local DMS) control unit 115 or 215 may use the media content directory service provided from the DMS modules 221, 222, 121, 122 and 123 in the home according to the content search request from the content sharing management units 111 and 211, And receives and delivers the media content payload from the corresponding DMS device in its home using the "HTTP GET REQUEST MESSAGE " in response to the content reproduction request from the content sharing management part 111,211. Upon receiving the content transmission end message from the content sharing management units 111 and 211, the HTTP server terminates the HTTP connection and notifies the content sharing management unit of the streaming connection termination response.

Upon receipt of a content list search request and a media transmission start / end event of the external home from the content sharing management units 111 and 211, the EDMS (External DMS) control units 114 and 214 generate corresponding request messages, (Media content sharing system 101, 201 between home networks) as a result, and notifies the content sharing management units 111, 211 of the message information received from the home media content sharing system 101, 201.

Upon receiving the media forwarding channel open request from the content sharing management units 111 and 211, the media forwarding processing units 113 and 213 open the media forwarding channel, and the corresponding media contents are transmitted to the host having the private IP address through the external public network (The EDMS control units 114 and 214 of the media content sharing systems 101 and 201 of the home network) or the media content data received from the external home via the external public network (the Internet) And performs IP packet forwarding for delivery to the in-house DMP device.

Hereinafter, a process of searching a media content list from an external home connected through an external network and a process of streaming specific media content will be described with reference to FIGS. 4 and 5, respectively.

FIG. 4 is a flowchart illustrating a method of searching a media content list from an external home among the home network media content sharing methods according to the present invention. Referring to FIG. 4, the home contents are connected through a home A and an external network (DMS) terminal of the external home (Home B).

First, the home network inter-network media content sharing systems 101 and 201 installed in the home servers existing in the home A and the home B share their own host names with the current home server IP address And registers them in the management servers 112 and 212 (S400 and S401).

When the user of the home A generates a media content search request event through the media sharing application program, the content sharing management unit 211 determines the search request place range according to the media content search request event information. If the range of the search destination is Home A, the content list request is delivered to the LDMS control unit 215. If the search destination is within the Home B, the content list request is transmitted to the EDMS control unit 214 (S402). When searching both the home A and the home B, a content list request is simultaneously transmitted to the LDMS control unit 215 and the EDMS control unit 214.

In order to obtain the address information of the inter-home network media content sharing system 101 installed in the home server 100 in the home B, the EDMS control unit 214 transmits the IP address information (S403). The information registration processing unit 212 obtains the corresponding IP address information from the location information management server 300 (S404), and transfers the obtained IP address information to the EDMS control unit 214 (S405).

Then, the EDMS control unit 214 receives the IP address information of the inter-home network media content sharing system 101 installed in the home server 100 in the acquired home B, (Step S406).

The content sharing management unit 111 of the home B receiving the media content list request message requests the LDMS control unit 115 to request the media content list in the home B in step S407 and the LDMS control unit 115, 122 and 123 using the browse action of the contents directory service provided by the DMSs 121, 122 and 123 in the home B of the user B , And transfers the content to the content sharing management unit 111 (S408). At this time, the collected content information is recorded in a DIDL (Digital Item Declaration Language) format.

Meanwhile, the content sharing management unit 111 converts the content storage location information into public IP address and port among the meta information about the content collected by the LDMS control unit 115, and converts the converted content list information (media content list) To the EDMS control unit 214 of the home A (S409).

The EDMS control unit 214 of the home A transmits the media content list of the home B fed back from the content sharing management unit 111 to the content sharing management unit 211 of the home A ).

In the case of requesting the content search of the home A, the LDMS control unit 215 uses a content directory service (CDS) provided by the DMS devices 221 and 222 in its home A Acquires the content list information, and transfers the acquired content list information to the content sharing management unit 111.

Thereafter, the content sharing management unit 111 delivers the collected media content list to the media sharing application program of the home A that generated the event, and the user can check the media content list through the application program.

FIG. 5 is a flowchart illustrating a process of receiving specific media content among home network media content sharing methods according to the present invention. Referring to FIG. 5, another home (Home B) connected through an external network (Internet) And receives the streaming request.

When a user of the home A acquires a media content list according to the procedure described above and selects a specific media content item, a playback start request event for the corresponding media content is transmitted to the content sharing management unit 211 through the application program, Lt; / RTI >

Then, the content sharing management unit 211 generates a content playback start request message and transmits the content playback start request message to the EDMS control unit 214 (S501). The EDMS control unit 214 sends a media transmission start request message for starting the home- To the content sharing management unit 111 in the home B (S502).

The content-sharing managing unit 111 receives the media content and informs the media forwarding processor 113 of the start of forwarding of the corresponding media content, so that the media forwarding channel is opened (S503). Then, the content sharing management unit 111 transmits a media transmission start response message to the EDMS control unit 214 of the home A (S504), and transmits the message to the content sharing management unit 211 (S505).

At this time, the media forwarding processor 113 in the home B executes the media stream forwarding using the IP address and the port number of the DMS device storing the media content.

On the other hand, the EDMS control unit 214 of the home A receiving the contents reproduction start response transmits the contents to the DMS device 121 in the home B storing the contents using the "HTTP GET connection request" (S506), receives the payload portion of the media content included in the HTTP 200 OK response message, and delivers the payload portion to the media sharing application program (S507). Then, the media sharing application program starts to play the corresponding media content payload received from the EDMS control unit 214. [

If the user generates a playback end event to terminate the media playback (or the playback is completed) during the playback of the media content according to this procedure, the generated playback end event is transmitted to the content sharing management unit 211 via the media sharing application program, And the content sharing management unit 211 requests the EDMS control unit 214 to terminate the streaming (S508). At this time, the EDMS control unit 214 disconnects the HTTP connection and transmits a media transmission termination request message to the content sharing management unit 111 in the home B (S509).

The content sharing management unit 111 of the home B receiving the media transmission end request message informs the media forwarding processing unit 113 of the closing of the forwarding channel in step S510 and the EDMS control unit 214 in the home A, A response message indicating that the media transmission end request message has been received is fed back (S511). At the same time, the media forwarding processing unit 113 of the home B ends the forwarding of the corresponding media content.

The EDMS control unit 214 receiving the media transmission end response message from the content sharing management unit 111 of the home B transmits the content reproduction end response message to the content sharing management unit 201 at step S512.

As such, since the present invention can interwork for content collection and streaming between dynamic private IP-based home networks connected through the Internet, it is possible for a user to exchange media contents existing in an external home network, So that it can be reproduced.

In addition, the present invention can share multimedia contents resources existing in various homes, thereby saving the cost of content storage, which is burdened by storing the same contents in respective homes.

The method of the present invention as described above may be embodied as a program and stored in a computer-readable recording medium (such as a CD-ROM, a RAM, a ROM, a floppy disk, a hard disk, or a magneto-optical disk). Such a process can be easily carried out by those skilled in the art and will not be described in detail.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. The present invention is not limited to the drawings.

100, 200: Home server 101, 201: Media content sharing system
111, 211: Content sharing management unit 112, 212: Home server information registration processing unit
113,213 Media forwarding processor 114,214: EDMS (External DMS)
115, 215 LDMS (Local DMS) control unit 300:

Claims (10)

A home home server that belongs to a home network based on DLNA (Digital Living Network Alliance), has one public IP, and assigns dynamic IP addresses to terminals in a home network through DHCP communication;
A home server information registration processing unit for registering / updating the IP address and access control information of the home server in an external location information management server and searching the IP address of the home server from the location information management server;
A content management server for providing a media content list and meta information collected from an inside or an outside of the home to which the user belongs by processing the event message received through the application program and providing content sharing for controlling reproduction of the selected media content selected through the application program; Management;
A local control unit for searching for a media content list in a home according to the control of the content sharing management unit and providing the media content list to an external home, receiving a media content payload requested to be played back from an external home,
Upon receipt of an event requesting a content list search and media transmission start / end request from the content sharing management unit, a corresponding request message is generated and transmitted to the corresponding external home, and as a result, To the content sharing management unit; And
A media sharing unit for opening the media forwarding channel according to a request from the content sharing management unit to transmit the media content from the home-use private IP-based premises to the public home based on the public IP, And a media forwarding processor for performing a packet forwarding function for delivering the media content to the home network device. The method according to claim 1,
The content sharing management unit, when receiving a content list search request from the application program, confirms a search request range, delivers a content list search request to the local control unit if the content is in the home area, Lt; / RTI >
Wherein the local control unit collects and stores content information using a media content directory service provided from a plurality of DMS modules in a home according to a content search request in the content sharing management unit. 3. The method of claim 2,
The local control unit transmits the media content payload received from the corresponding DMS device in its home using the HTTP GET REQUEST message according to the content reproduction request from the external home received through the content sharing management unit through the media forwarding unit And transmits an HTTP connection end response to the content sharing management unit after terminating the HTTP connection upon receiving the content transmission end message from the content sharing management unit. 4. The method according to any one of claims 1 to 3,
Wherein the content sharing management unit converts the storage location information based on the private IP among the meta information of the collected media content of the external home into a public IP address and port, Content sharing system. 5. The method of claim 4,
Wherein the location information management server performs a function of a dynamic domain name service server and stores and manages IP addresses and authentication / access control information allocated to home servers in the home network. system. 6. The method of claim 5,
Wherein the home server information registration processing unit registers a unique host name searchable from the outside by using the IP address of the home server on which the home server is registered, in the location information management server. The method according to claim 6,
Wherein the content list is recorded in a DIDL (Digital Item Declaration Language) format. A location information searching step of the media playback terminal in the home network searching for IP address information of the external home server;
The media playback terminal requests the content list search using the obtained IP address information and receives the content list search request and stores the private IP based storage location information in the meta information of the media content of the received external home as a public IP address And a port;
A content transmission request step of requesting, by the media playback terminal, transmission of a specific media content from the response content list to the external home according to a user's selection;
A media setting step of setting packet port forwarding between a device in a private IP based external home storing the corresponding media content and the media playing terminal based on a public IP network; And
And transmitting the media content from the external home using the packet port forwarding set by the media playback terminal. A location information registration step of registering an IP address and authentication / access control information allocated to the home server in an external location information management server;
A content list searching step of collecting content information using a media content directory service provided from a plurality of DMS modules in the home according to a content list search request from the media playing terminal of the external home and providing the collected content information to the media playing terminal;
A media setting step of setting packet port forwarding between the private IP-based domestic device storing the corresponding media content and the media playback terminal based on the public IP network, upon request for transmission of the specific media content from the media playback terminal; And
And transmitting the media content received from the premises device to the media reproduction terminal using the packet port forwarding. 10. The method of claim 9,
In the location information registration step,
And registering a unique host name searchable from the outside by using the IP address of the home server in the location information management server.
KR1020120156728A 2012-12-28 2012-12-28 Method for media contents sharing over inter-homenetwork KR20140086358A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104079953A (en) * 2014-07-17 2014-10-01 合一网络技术(北京)有限公司 Method and system based on video information sharing operation
CN111970189A (en) * 2020-07-31 2020-11-20 腾讯科技（深圳）有限公司 Content sharing control method and device, electronic equipment and storage medium

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104079953A (en) * 2014-07-17 2014-10-01 合一网络技术(北京)有限公司 Method and system based on video information sharing operation
CN111970189A (en) * 2020-07-31 2020-11-20 腾讯科技（深圳）有限公司 Content sharing control method and device, electronic equipment and storage medium
CN111970189B (en) * 2020-07-31 2024-01-09 腾讯科技（深圳）有限公司 Content sharing control method and device, electronic equipment and storage medium

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