CN102447693A - Screen sharing method and system for DLNA (Digital Living Network Alliance) terminals in home network - Google Patents

Screen sharing method and system for DLNA (Digital Living Network Alliance) terminals in home network Download PDF

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Publication number
CN102447693A
CN102447693A CN 201110341726 CN201110341726A CN102447693A CN 102447693 A CN102447693 A CN 102447693A CN 201110341726 CN201110341726 CN 201110341726 CN 201110341726 A CN201110341726 A CN 201110341726A CN 102447693 A CN102447693 A CN 102447693A
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dmr
dmp
mrcp
playing
playback position
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CN 201110341726
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Chinese (zh)
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李�荣
梁洁辉
王胜娟
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中兴通讯股份有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. local area networks [LAN], wide area networks [WAN]
    • H04L12/2803Home automation networks
    • H04L12/2807Exchanging configuration information on appliance services in a home automation network
    • H04L12/2812Exchanging configuration information on appliance services in a home automation network describing content present in a home automation network, e.g. audio video content
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television, VOD [Video On Demand]
    • 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, synchronizing decoder's clock; Client middleware
    • H04N21/436Interfacing a local distribution network, e.g. communicating with another STB, inside the home ; Interfacing an external card to be used in combination with the client device
    • H04N21/43615Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals

Abstract

The invention discloses a screen sharing method and system for DLNA (Digital Living Network Alliance) terminals in a home network. The screen sharing method comprises the following steps: a MRCP (Media Renderer Control Point) obtains metadata information of a media item which is played by a DMP (Digital Media Player), and sends the metadata information to a designated DMR (Digital Media Renderer) of a user to perform capability matching; after the DMR successfully completes capability matching, the MRCP obtains the playing position of the DMP; and the MRCP allows the DMR to jump to the playing position for playing the media item. By adopting the method and system, sharing of a playing screen and playing characteristics among different DLNA terminals can be realized so as to provide user experience.

Description

家庭网络中DLNA终端的屏幕共享方法及系统 Screen sharing method and system for terminal DLNA home network

技术领域 FIELD

[0001] 本发明涉及数字家庭网络领域,尤其涉及一种家庭网络中DLNA(Digital Living Network Alliance,数字生活网络联盟)终端的屏幕共享方法及系统。 [0001] The present invention relates to the field of digital home network, in particular to DLNA (Digital Living Network Alliance, Digital Living Network Alliance) screen sharing method and system for a home network terminal.

背景技术 Background technique

[0002] DLNA协议的提出,目的是为了实现有线网络和无线网络的互通互联,使得数字媒体和内容服务的无限制共享成为可能。 [0002] DLNA protocol put forward, the purpose is to achieve interconnection wired and wireless networks, making the unrestricted sharing of digital media and content services possible. 在数字家庭网络中,有各种各样的数字媒体设备,例如数码相机、电视、PC、手机、数码相框、MP4播放器等等。 In the digital home network, there are a variety of digital media devices, such as digital cameras, TV, PC, mobile phones, digital photo frames, MP4 players and so on. 这些设备可以通过互联网、移动网络和广播网络获取最新的媒体内容(图片、音乐和视频),DLNA能够在数字家庭网络中使上述设备之间无缝地互操作播放三网之间的媒体资源。 These devices can get the latest media content (photos, music and video) over the Internet, mobile networks and broadcast networks, DLNA can interoperate seamlessly between playback of media resources between the three networks and the digital home devices in the network manipulation.

[0003] DLNA将家庭网络中的媒体设备分为四种角色:数字媒体服务器(DMS)、数字媒体播放器(DMP)、数字媒体控制器(DMC)和数字媒体渲染器(DMR),他们统称为DLNA终端,其中,DMS向其它设备分享自己的媒体内容,它通常需要实现内容目录业务、连接管理业务和音视频传输业务;而DMR则接受DMS共享媒体内容的推送和展现,它通常需要实现音视频传输业务、连接管理业务和渲染控制业务。 [0003] DLNA home network media devices are divided into four roles: a digital media server (DMS), a digital media player (DMP), Digital Media Controller (DMC) and Digital Media Renderer (DMR), who is referred to as a DLNA terminal, wherein, DMS sharing to other devices own media content, it usually needs to implement a content directory service, connection management services and audio and video transmission services; and the DMR is receiving DMS share media push and presentation, it usually needs to implement sound video transmission services, connection management and rendering control service business. DMC用于浏览DMS上共享的媒体内容,并将其推送到DMR进行播放,也可以在本地播放器上进行播放,也就是说DMP是DMC和本地播放器的整合;DMC分为两种类型:MSCP (媒体服务器控制点)和MRCP (媒体渲染器控制点),MSCP面向DMS,用于浏览DMS上的共享媒体内容,而MRCP面向DMR,用于控制DMR播放DMS上的共享媒体内容的整个进程。 DMC for sharing on the browser DMS media content and push it to the DMR to play, can also be played on a local player, that DMP and DMC is the integration of local players; DMC divided into two types: MSCP (media server control point) and MRCP (media renderer control point), MSCP for DMS, for sharing media content on the browser DMS, and MRCP for the DMR, the DMR is used to control the sharing of media content to play DMS entire process .

[0004] 如图1所示,是家庭网络示意图,图中,各种媒体设备通过无线路由器进行连接, 例如普通PC、便携式PC、电视通过有线或者无线方式来连接,带WIFI的手机终端通常只能通过无线方式来连接,家庭网络的媒体设备通过无线路由器实现互连;通过DLNA网络,这些设备上的媒体内容可以相互之间进行共享,例如普通PC上的视频文件既可以在手机上进行播放,也可以在便携式PC或者电视上播放,并且不需要将普通PC上的视频文件复制到这些设备上。 [0004] As shown in FIG 1, the home network is a schematic drawing, the various media devices are connected through a wireless router, such as general the PC, the PC portable, the television connected via wired or wireless manner, with the mobile terminals typically only WIFI can connect wirelessly to the home network media devices are interconnected through a wireless router; media content on these devices can be shared with each other via DLNA network, such as video files on an ordinary PC can either be played on mobile phones also can be played on a portable PC or TV, and do not need to copy the video files on an ordinary PC into these devices. 通常情况下,这已经可以满足用户在家庭网络之间的媒体共享需求,但是如果有一媒体项,用户想在手机上播放,同时在电视或者PC上进行播放,目前的DLNA无法处理这种情形。 Under normal circumstances, it has to meet the needs of users to share media between your home network, but if there is a media item, a user wants to play on the phone, and play on TV or PC, DLNA currently unable to handle this situation.

发明内容 SUMMARY

[0005] 本发明的目的是,提供一种家庭网络中DLNA终端的屏幕共享方法及系统,以解决现有的家庭网络中DLNA终端间不能共享屏幕的问题。 Objective [0005] The present invention is to provide a method and system for sharing screen home network DLNA terminal to solve the existing inter DLNA home network the terminal can not share screen problems.

[0006] 本发明提供了一种家庭网络中DLNA终端的屏幕共享方法,上述方法为: [0006] The present invention provides a method of screen sharing DLNA home network terminal, said method:

[0007] MRCP获取DMP正在播放的媒体项的元数据信息,并将其发送给用户指定的DMR进行能力匹配; [0007] MRCP acquired metadata information DMP media item being played, and sends it to the user the ability to match the specified DMR;

[0008] 在上述DMR能力匹配成功后,获取上述DMP的播放位置; [0008] After the above-described DMR capability matching is successful, acquires the playback position of the DMP;

[0009] 令上述DMR跳转到上述播放位置播放上述媒体项。 [0009] DMR make the above-described playback position jumps to said playing back of the media item. [0010] 优选地,上述DMR收到媒体项的元数据信息后,执行以下步骤: After [0010] Preferably, the DMR received metadata of media items of information, perform the following steps:

[0011] 根据上述媒体项的元数据信息,判断自身是否能够播放上述媒体项,若是,则匹配成功;否则,匹配失败。 [0011] The metadata information of the media item, determine whether it is capable of playing back the media item, if yes, the matching is successful; otherwise, the match fails.

[0012] 优选地,上述方法还包括以下步骤: [0012] Preferably, the method further comprising the steps of:

[0013] 实时监控上述DMR的播放状态; [0013] real-time monitoring of the playback state of the DMR;

[0014] 若上述DMR的播放状态发生变化,则获取上述DMR的播放位置,并同步到上述DMP。 [0014] When the playback state of the DMR changes, the playback position of the DMR acquires and synchronizes to said DMP.

[0015] 优选地,上述方法还包括以下步骤: [0015] Preferably, the method further comprising the steps of:

[0016] 实时监控上述DMP的播放特性,若上述DMP的播放特性发生变化,则获取上述DMP 的当前播放特性,并同步到上述DMR。 [0016] Real-time monitoring characteristics of the DMP player, if playing characteristics of the DMP is changed, the characteristics of the DMP get the current players and synchronized to the above DMR.

[0017] 优选地,上述方法还包括以下步骤: [0017] Preferably, the method further comprising the steps of:

[0018] 上述DMR在本地播放状态发生变化时,将当前播放位置上报给上述MRCP ; [0018] The DMR in the local playback status change, the current playback position of MRCP to said report;

[0019] 上述MRCP将上述DMR上报的播放位置同步到上述DMP。 [0019] The above MRCP reported DMR synchronization to said playback position DMP.

[0020] 优选地,上述方法还包括以下步骤: [0020] Preferably, the method further comprising the steps of:

[0021] 上述DMP在本地播放特性发生变化时,将当前播放特性上报给上述MRCP ; [0021] The DMP for playing local characteristics change, the current play features of MRCP to said report;

[0022] 上述MRCP将上述DMP上报的播放特性同步到上述DMR。 [0022] The DMP MRCP above reported being synchronized to said playback DMR.

[0023] 优选地,若上述媒体项为音视频时,则上述方法还包括以下步骤: [0023] Preferably, if the above-described audio media item is a video, the above method further comprising the steps of:

[0024] 周期性获取上述DMP及上述DMR的播放位置并比较; [0024] periodically acquires a position of the player DMP and DMR and said comparison;

[0025] 若上述DMR的播放位置与上述DMP的播放位置的差值大于预设的阈值,则将上述DMR的播放位置同步到上述DMP。 [0025] When the playback position of the playback position of the DMR and the DMP difference is greater than a predetermined threshold value, then the above-described playback position to said DMR synchronization DMP.

[0026] 本发明还进一步提供了一种家庭网络中DLNA终端的屏幕共享系统,包括DMP、 MRCP 及DMR, [0026] The present invention further provides a system for sharing screen DLNA home network of the terminal, including DMP, MRCP and the DMR,

[0027] 上述DMP,用于在播放媒体项时为用户提供屏幕共享功能界面及选项,并在用户请求共享屏幕时,将用户请求发送给上述MRCP ; [0027] the DMP above, for providing the media item during playback screen for the user interface and sharing option, and the shared screen upon user request, the request transmitted to the user of MRCP;

[0028] 上述MRCP,用于获取上述DMP播放的媒体项的元数据信息,并将其发送给用户请求中指定的DMR进行能力匹配;以及在上述DMR能力匹配成功后,获取上述DMP的播放位置,令上述DMR跳转到上述播放位置播放上述媒体项。 [0028] The of MRCP, a DMP acquires the playing media item metadata information, and sends it to the user specified in the request capacity matching DMR; DMR and after the above-described capability matching is successful, acquires the playback position of the DMP , so that the above-mentioned DMR Jump to play position above the medium-term play.

[0029] 优选地,上述DMP,用于在播放特性发生变化时,将当前播放特性上报给上述MRCP ; [0029] Preferably, the DMP above, is used during playback characteristics change, it will be reported to said current play characteristics of MRCP;

[0030] 上述DMR,用于根据收到的媒体项的元数据信息,判断自身是否能够播放上述媒体项,并将判断结果返回给上述MRCP ;以及在播放状态发生变化时,将当前播放位置上报给上述MRCP ; [0030] the DMR above, according to the metadata for the media item received information, determines whether it is possible to play the above media item, and returns the result to said determination of MRCP; and when the play state changes, the current play location reporting of MRCP to above;

[0031] 上述MRCP,用于将上述DMP上报的播放特性同步到上述DMR ;或者将上述DMR上报的播放位置同步到上述DMP。 [0031] The MRCP, DMP reported above for synchronized playback characteristics to said DMR; DMR or the above reported synchronized to said playback position DMP.

[0032] 优选地,上述MRCP,用于实时监控上述DMP的播放特性及上述DMR的播放状态,在上述DMP的播放特性发生变化时,获取上述DMP的当前播放特性,并同步到上述DMR ;在上述DMR的播放状态发生变化,获取上述DMR的播放位置,并同步到上述DMP ;以及在媒体项为音视频时,周期性获取上述DMP及上述DMR的播放位置并比较,在上述DMR的播放位置与上述DMP的播放位置的差值大于预设的阈值时,将上述DMR的播放位置同步到上述DMP。 [0032] Preferably, the above-described state of MRCP playing, playing the above-described characteristics for realtime monitoring of the DMP and said DMR, DMP when playing characteristics of the change, the current playback characteristics of the DMP acquires and synchronizes to said DMR; in playback state of the DMR changes, DMR acquires the playback position above and synchronized to said DMP; and when audio and video media item is periodically acquired playback position of the DMP and DMR and said comparison, the playback position above the DMR when the difference between the play position above the DMP greater than a preset threshold value, the playback position of the DMR synchronization to said DMP.

[0033] 本发明解决了DLNA终端间屏幕共享的问题,实现了将一个DLNA终端上播放的媒 [0033] The present invention solves the terminal screen sharing between DLNA problem will achieve played on a DLNA media terminal

5体内容同步到家庭网络的其它DLNA终端上进行播放,使得不同DLNA终端间播放屏幕和播放特性实现共享,提供了用户体验。 5 synchronized content to other member terminals DLNA home network to play, such that between different terminals DLNA playback screen sharing and play features, a user experience.

附图说明 BRIEF DESCRIPTION

[0034] 此处所说明的附图用来提供对本发明的进一步理解,构成本发明的一部分,本发明的示意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。 [0034] The drawings described herein are provided for further understanding of the present invention, constituting part of the invention, exemplary embodiments of the present invention are used to explain the present invention without unduly limiting the present invention. 在附图中: In the drawings:

[0035] 图1是家庭网络示意图; [0035] FIG. 1 is a schematic diagram of a home network;

[0036] 图2是本发明家庭网络中DLNA终端的屏幕共享方法优选实施例的流程图; [0036] FIG 2 is a flowchart of an embodiment of the method of screen sharing DLNA home network terminal preferably present invention;

[0037] 图3是本发明家庭网络中DLNA终端的屏幕共享系统优选实施例的原理框图。 [0037] FIG. 3 is a schematic block diagram of an embodiment of the screen of the terminal DLNA home network sharing system of the present invention preferably.

具体实施方式 detailed description

[0038] 为了使本发明所要解决的技术问题、技术方案及有益效果更加清楚、明白,以下结合附图和实施例,对本发明进行进一步详细说明。 [0038] In order to make the technical problem to be solved by the present invention, technical solutions and beneficial effects more clearly understand, in conjunction with the accompanying drawings and the following embodiments, the present invention will be further described in detail. 应当理解,此处所描述的具体实施例仅用以解释本发明,并不用于限定本发明。 It should be understood that the specific embodiments described herein are merely used to explain the present invention and are not intended to limit the present invention.

[0039] 由于本发明是在家庭网络中有媒体项播放的前提下进行,有必要说明家庭网络媒体项播放的建立过程,具体如下: [0039] Since the present invention is carried out under the premise of playing media item in a home network, it is necessary to establish a procedure described home network to play media items, as follows:

[0040] 家庭网络上电后,MSCP获取网络中的DMS (即家庭网络中带DMS功能的DLNA终端) 的设备描述信息和业务描述信息,以获知其能力信息;同时,MRCP获取网络中的DMR(即家庭网络中带DMR功能的DLNA终端)的设备描述信息和业务描述信息,以获知其能力信息; After [0040] Electric home network, the MSCP acquired network DMS (i.e., DLNA terminal home network with DMS function) of the device description information and service description information to be informed of their capability information; the same time, of MRCP acquired network DMR (i.e., the home network with DLNA DMR terminal functions) device description information and service description information to be informed of their capability information;

[0041] DMR、DMS的设备描述信息和业务描述信息一般有以下两种方式: [0041] DMR, DMS device description information and service description information generally has the following two ways:

[0042] 一种是DMP主动搜索,具体为:MSCP及MRCP广播MS (MediaServer媒体服务器)设备搜索报文,查找在家庭网络下可用的DMS及DMR并获取其设备描述信息和业务描述信息; 另一种是DMS、DMR主动上报,具体为:DMS、DMR初始化后主动向DMP的MSCP及MRCP报告自己位置信息,MSCP及MRCP通过上述位置信息,获取DMS、DMR的设备描述信息和业务描述信息; [0042] A DMP is actively searching, in particular: MSCP and MRCP broadcast MS (MediaServer Media Server) device search packet, DMS and DMR find available in a home network and acquires its device description information and service description information; other One is the DMS, DMR actively reports, specifically: DMS, DMR after initialization voluntarily report their location to the MSCP DMP and MRCP, MSCP and MRCP by the position information acquiring the DMS, the DMR device description information and service description information;

[0043] MSCP获取到DMS的业务描述信息后,通过DMS的⑶S业务浏览DMS的媒体项,可以包括图片、音乐和视频,通常为树型结构组织;浏览某一级时,DMS返回此级下的所有媒体项的元数据信息,媒体项的元数据信息包括媒体项名字、媒体项大小、媒体项片长、内容类型以及访问方式(例如HTTP流媒体方式或者RTSP流媒体方式)等,以便用户查找自己感兴趣的内容; [0043] MSCP after obtaining the DMS service description information, browse through ⑶S business of DMS DMS media items can include pictures, music and videos, usually a tree structure of the organization; one level while browsing, return to this level at DMS All meta data of media items, metadata of media items comprising media item name, the media item size, media item Duration, content type and access mode (e.g., HTTP streaming manner or RTSP streaming mode) and the like, so that the user Find what you're interested in;

[0044] 用户选中要播放的媒体项后,MSCP根据用户选中的媒体项的元数据信息,在DMS 到DMP之间进行媒体传输,将DMS上的媒体项发送给DMP (即家庭网络中带DMP功能的DLNA 终端),DMP播放上述媒体项。 After the [0044] user selects the media item to be played, the user selected the MSCP metadata information media item, the media transmission between the DMS DMP, the DMS transmits the media item to a DMP (i.e., the home network with DMP DLNA terminal function), DMP playing back of the media item.

[0045] 媒体项播放后,用户想要将DMP当前播放的媒体项共享给网络中的DMR,且保持当前播放位置时,则只需通过DMP提供的界面,选择播放屏幕共享并选择要共享的DMR即可。 [0045] After the media item to play, when a user wants to share DMP currently playing media item to the network DMR, and keep the current playback position, simply by providing the interface to the DMP to select the playback screen sharing and choose to share DMR can be.

[0046] 如图2所示,是本发明家庭网络中DLNA终端的屏幕共享方法优选实施例的流程图,本实施例设定用户选中的媒体项为音视频,且用户要共享的DMR能力匹配成功,具体包括以下步骤: DMR ability [0046] FIG. 2 is a flowchart of an embodiment of the method of screen sharing DLNA home network terminal in the present invention, preferably, the present embodiment to set the user selected media item is audio and video, and to match the user to share success, includes the following steps:

[0047] 步骤SOl =DMP播放媒体项,用户请求屏幕共享;[0048] 步骤S02 =MRCP获取DMP正在播放的媒体项的元数据信息,并将其发送给用户指定的DMR进行能力匹配; [0047] Step SOl = DMP playing media item, the user requests the screen sharing; [0048] Step S02 = MRCP acquired metadata information DMP media item being played, and sends it to the user the ability to match the specified DMR;

[0049] 步骤S03 :DMR根据上述媒体项的元数据信息,判断出自身能够播放上述媒体项, 返回匹配成功消息给MRCP ; [0049] Step S03: DMR metadata information of the media item, it is determined that itself is capable of playing back the media item, returns a success message to the of MRCP;

[0050] DMR与DMP的媒体播放能力和流媒体支持能力有可能不一样,通过DMR提供的音视频业务来判断其是否能够播放媒体项,当DMR判断出自身不能播放上述媒体项时,则返回匹配失败消息给MRCP,本次共享失败;当DMR判断出自身能够播放上述媒体项时,则继续后续流程。 [0050] DMR and the media playback capability and streaming media support capability of DMP may differ, by DMR supplies audio and video services to determine whether it is capable of playing media item, when DMR judged itself not playing back the media item is returned failure message to the matching of MRCP, this sharing fails; DMR is judged when the above is capable of playing media item itself, a subsequent process is continued.

[0051] 步骤S04 =MRCP收到匹配成功消息后,获取DMP的播放位置; After [0051] Step S04 = MRCP receive the message matching succeeds, the DMP acquires the playback position;

[0052] 步骤S05 :通过AVT业务提供的定位操作令上述DMR跳转到上述播放位置播放上述媒体项; [0052] Step S05: positioning operation AVT service provided by the above-described command to said playback position jump DMR playing back of the media item;

[0053] 对于音视频来说,由于网络状况的差异,在播放一段时间后,可能会出现DMP和DMR播放不同步的问题,本发明通过以下步骤保证DMP、DMR的播放同步问题。 [0053] For video and audio, because of differences in the status of the network, after playing for some time, problems may occur DMP and DMR playback is not synchronized, the present invention is guaranteed by the steps of synchronization playback DMP, the DMR.

[0054] 步骤S06 :周期性获取DMP及DMR的播放位置; [0054] Step S06: the periodic acquisition of DMP and DMR playback position;

[0055] 步骤S07 :比较DMR的播放位置与DMP的播放位置的差值L是否大于预设的阈值K,若是,则执行步骤S08 ;否则,执行步骤S06 ; [0055] Step S07: Compare the difference DMR playback position of the playback position DMP L is greater than a predetermined threshold value K, if yes, executing step S08; otherwise, proceed to step S06;

[0056] 步骤S08 :将DMR的播放位置同步到DMP。 [0056] Step S08: the playback position to the DMR synchronization DMP.

[0057] 本发明对于媒体项为图片的情况,由于播放延时对用户体验影响较小,故不需要进行DMP与DMR的同步;但对于媒体项是音视频的情况,由于播放延时,会造成DMP、DMR播放的画面不一致的情况,影响用户体验,故需要DMP与DMR的同步。 [0057] The present invention is a picture of the media item, the delay due to the play on the user experience less impact, it does not require synchronization with the DMR DMP; however, for the case where the media items are audio and video playback delay due, will resulting in inconsistent DMP, DMR playback screen, the user experience, so the need to synchronize the DMP and DMR.

[0058] 本发明在将DMP的屏幕共享给DMR后,还需要在DMP的播放特性发生变化(例如音量调节、屏幕亮度调节等)后,将上述播放特性同步到共享的DMR,或者在DMR的播放状态发生变化时,将其播放位置同步到DMP,以保证二者播放的画面同步或画面延时不影响用户体验;本发明通过两种方式来实现: After the [0058] present invention, after the DMP screen sharing to the DMR, also needs to be changed (e.g., volume control, screen brightness adjustment, etc.) occurs in the play features the DMP, the above-described playback being synchronized to a shared DMR, or a DMR when the play state changes, which is synchronized to the DMP playback position, to ensure that both the playback picture sync or delayed without affecting the user experience; the present invention is achieved in two ways:

[0059] 其一为MRCP主动监控,具体为: [0059] One is MRCP proactive monitoring, in particular:

[0060] MRCP实时监控DMR的播放状态及DMP的播放特性,若DMR的播放状态发生变化,则获取DMR的播放位置,并同步到DM P ;若DMP的播放特性发生变化,则获取DMP的当前播放特性(例如DMP的当前音量、当前屏幕亮度、当前屏幕色差等),并同步到DMR ; [0060] playback status MRCP real-time monitoring of DMR and the playing characteristics of the DMP, if the play status DMR change, are acquired playback position DMR and synchronizes to the DM P; if play features DMP change, are acquired DMP current play characteristics (e.g. DMP, current volume, the current screen brightness, the current screen color, etc.), and to the DMR synchronization;

[0061] 另一种为DMR、DMP主动上报,具体为:本地播放状态发生变化,DMR上报当前播放位置给MRCP,MRCP将DMR上报的播放位置同步到DMP ;本地播放特性发生变化,DMP上报当前播放特性给MRCP,MRCP将DMP上报的播放特性同步到DMR。 [0061] Another is the DMR, the DMP actively reports, specifically: local playback state changes, the current play location report to DMR MRCP, MRCP reported by the DMR synchronization playback position to the DMP; local playing characteristics change, the DMP report the current play features to MRCP, MRCP DMP will play features synchronized reported to DMR.

[0062] MRCP通过DMR提供的渲染控制业务将DMP的播放特性设置到DMR上,完成DMR与DMP播放特性的同步。 [0062] MRCP DMR provided by rendering the DMP playback control traffic characteristics provided to the DMR, complete synchronization with the DMR playing characteristics DMP.

[0063] 如图3所示,是本发明家庭网络中DLNA终端的屏幕共享系统优选实施例的原理框图,包括DMP、MRCP 及DMR, [0063] As shown in FIG. 3, the present invention is in the home network sharing terminal screen DLNA system block diagram of the preferred embodiment, it comprises a DMP, MRCP and the DMR,

[0064] DMP,用于在播放媒体项时为用户提供屏幕共享功能界面及选项,并在用户请求共享屏幕时,将用户请求发送给上述MRCP,以及在播放特性发生变化时,将当前播放特性上报给上述MRCP ; [0064] DMP, screen sharing function for providing interfaces and options for the user when playing media item and the shared screen upon user request, the request transmitted to the user of MRCP, and when it changes play features, the current play features of MRCP to said report;

[0065] MRCP,用于获取DMP播放的媒体项的元数据信息,并将其发送给用户指定的DMR进行能力匹配;以及在上述DMR能力匹配成功后,获取上述DMP的播放位置,令上述DMR跳转到上述播放位置播放上述媒体项;实时监控上述DMP的播放特性及上述DMR的播放状态,在上述DMP的播放特性发生变化时,获取上述DMP的当前播放特性,并同步到上述DMR ;在上述DMR的播放状态发生变化,获取上述DMR的播放位置,并同步到上述DMP ;或者将上述DMP 上报的播放特性同步到上述DMR,将上述DMR上报的播放位置同步到上述DMP ;以及在媒体项为音视频时,周期性获取上述DMP及上述DMR的播放位置并比较,在上述DMR的播放位置与上述DMP的播放位置的差值大于预设的阈值时,将上述DMR的播放位置同步到上述DMP ; [0065] MRCP, for acquiring metadata of media items DMP play, and send it to the user the ability to match the specified DMR; DMR and after the above-described capability matching succeeds, the DMP acquires the position of the player, so that the above-described DMR playback position jumps to the broadcast media item above; playback state of play features real-time monitoring of the above-described and said DMR is DMP, DMP when playing characteristics of the change, the current playback characteristics of the DMP acquires and synchronizes to said DMR; in playback state of the DMR changed, acquires the playback position above the DMR, and synchronized to said DMP; or above DMP reported playback being synchronized to said DMR, the above DMR reported playback position synchronized to said DMP; and the media item when the audio and video is periodically acquired playback position of the DMP and DMR and said comparison, at the position of the DMR playing the playback position of the DMP difference is greater than a predetermined threshold value, the playback position of the DMR synchronization to said DMP;

[0066] DMR,用于根据收到的媒体项的元数据信息,判断自身是否能够播放上述媒体项, 并将判断结果返回给上述MRCP ;以及在播放状态发生变化时,将当前播放位置上报给上述MRCP0 [0066] DMR, the metadata for the media item received information, determine whether it is capable of playing media item above, and the results are returned to the above-described determination of MRCP; and when the play state changes, the current play location is reported to above MRCP0

[0067] 上述说明示出并描述了本发明的优选实施例,但如前所述,应当理解本发明并非局限于本文所披露的形式,不应看作是对其他实施例的排除,而可用于各种其他组合、修改和环境,并能够在本文所述发明构想范围内,通过上述教导或相关领域的技术或知识进行改动。 [0067] The above description of the embodiments illustrated and described preferred embodiments of the present invention, as previously discussed, it should be understood that the invention is not limited to the form disclosed herein should not be considered as excluding other embodiments, the available in various other combinations, modifications, and environments, and can be within the scope of the invention contemplated herein, or make changes to the above teachings in skill or knowledge of the relevant art. 而本领域人员所进行的改动和变化不脱离本发明的精神和范围,则都应在本发明所附权利要求的保护范围内。 The modifications and variations carried out by the skilled person without departing from the spirit and scope of the invention shall fall within the scope of the appended claims of the invention.

Claims (10)

  1. 1. 一种家庭网络中数字生活网络联盟DLNA终端的屏幕共享方法,其特征在于,所述方法为:媒体渲染器控制点MRCP获取数字媒体播放器DMP正在播放的媒体项的元数据信息,并将其发送给用户指定的数字媒体渲染器DMR进行能力匹配; 在所述DMR能力匹配成功后,获取所述DMP的播放位置; 令所述DMR跳转到所述播放位置播放所述媒体项。 A method of sharing a home screen in Living Network Alliance DLNA digital network terminal, wherein the method is: the media renderer control point acquires metadata information MRCP media item DMP digital media player is playing, and which is sent to the user specified digital media renderer DMR matching capacity; DMR capacity after the matching succeeds, the DMP acquires the playback position; causing the DMR to jump the playback position to play the media item.
  2. 2.根据权利要求1所述的方法,其特征在于,所述DMR收到媒体项的元数据信息后,执行以下步骤:根据所述媒体项的元数据信息,判断自身是否能够播放所述媒体项,若是,则匹配成功;否则,匹配失败。 2. The method according to claim 1, wherein said DMR received metadata of media items of information, perform the following steps: according to the metadata of the media item information, determines whether to play the media itself item, if so, the match is successful; otherwise, the match fails.
  3. 3.根据权利要求1所述的方法,其特征在于,所述方法还包括以下步骤: 实时监控所述DMR的播放状态;若所述DMR的播放状态发生变化,则获取所述DMR的播放位置,并同步到所述DMP。 3. The method according to claim 1, wherein said method further comprises the steps of: real-time monitoring of the DMR playing state; if the DMR playing status changes, the playback position acquired in the DMR and synchronize to the DMP.
  4. 4.根据权利要求3所述的方法,其特征在于,所述方法还包括以下步骤:实时监控所述DMP的播放特性,若所述DMP的播放特性发生变化,则获取所述DMP的当前播放特性,并同步到所述DMR。 4. The method according to claim 3, wherein said method further comprises the steps of: real-time monitoring of the play characteristics of the DMP, if the playing characteristics of the DMP changes, the DMP acquires the current playback characteristics, and synchronized to the DMR.
  5. 5.根据权利要求1所述的方法,其特征在于,所述方法还包括以下步骤: 所述DMR在本地播放状态发生变化时,将当前播放位置上报给所述MRCP ; 所述MRCP将所述DMR上报的播放位置同步到所述DMP。 5. The method according to claim 1, wherein said method further comprises the step of: playing the DMR in the local status change, the current play location is reported to said MRCP; the said MRCP DMR reported synchronized playback position to the DMP.
  6. 6.根据权利要求5所述的方法,其特征在于,所述方法还包括以下步骤: 所述DMP在本地播放特性发生变化时,将当前播放特性上报给所述MRCP ; 所述MRCP将所述DMP上报的播放特性同步到所述DMR。 6. The method according to claim 5, characterized in that the method further comprises the step of: when the DMP playing characteristics change locally, will be reported to the currently playing characteristics MRCP; the said MRCP DMP reported to the synchronized play features DMR.
  7. 7.根据权利要求1-6任一项所述的方法,其特征在于,若所述媒体项为音视频时,则所述方法还包括以下步骤:周期性获取所述DMP及所述DMR的播放位置并比较;若所述DMR的播放位置与所述DMP的播放位置的差值大于预设的阈值,则将所述DMR 的播放位置同步到所述DMP。 The method according to any one of claims 1-6, wherein if the media item is a video and audio, the method further comprising the step of: periodically obtaining the DMP, and the DMR is and comparing the playback position; if the difference between DMR playback position of the playback position of the DMP greater than a preset threshold, the DMR synchronization playback position to the DMP.
  8. 8. 一种家庭网络中DLNA终端的屏幕共享系统,包括DMP、MRCP及DMR,其特征在于, 所述DMP,用于在播放媒体项时为用户提供屏幕共享功能界面及选项,并在用户请求共享屏幕时,将用户请求发送给所述MRCP ;所述MRCP,用于获取所述DMP播放的媒体项的元数据信息,并将其发送给用户请求中指定的DMR进行能力匹配;以及在所述DMR能力匹配成功后,获取所述DMP的播放位置,令所述DMR跳转到所述播放位置播放所述媒体项。 A screen sharing system DLNA home network of the terminal, including DMP, MRCP and the DMR, characterized in that said the DMP, screen sharing function for providing interfaces and options for the user when playing a media item, and a user request when the screen sharing request to the user of MRCP; the of MRCP, for acquiring metadata of media items to play the DMP, and sends the user request to the DMR specified in its ability to match; and the later DMR capability matching succeeds, the DMP acquires the playback position, so that the jump to the play position DMR playing the media item.
  9. 9.根据权利要求8所述的系统,其特征在于,所述DMP,用于在播放特性发生变化时,将当前播放特性上报给所述MRCP ; 所述DMR,用于根据收到的媒体项的元数据信息,判断自身是否能够播放所述媒体项, 并将判断结果返回给所述MRCP ;以及在播放状态发生变化时,将当前播放位置上报给所述MRCP ;所述MRCP,用于将所述DMP上报的播放特性同步到所述DMR ;或者将所述DMR上报的播放位置同步到所述DMP。 9. The system of claim 8, wherein said the DMP, is used during playback characteristics change, will be reported to the currently playing characteristics of MRCP; the the DMR, according to the received media item for metadata information, determines whether it is possible to play the media item, and returns to the determination result of MRCP; and when the play state changes, the report to the current play location of MRCP; the of MRCP, for the DMP reported to the DMR synchronization play features; or reported by the DMR synchronization playback position to the DMP.
  10. 10.根据权利要求8或9所述的系统,其特征在于,所述MRCP,用于实时监控所述DMP 的播放特性及所述DMR的播放状态,在所述DMP的播放特性发生变化时,获取所述DMP的当前播放特性,并同步到所述DMR ;在所述DMR的播放状态发生变化,获取所述DMR的播放位置,并同步到所述DMP ;以及在媒体项为音视频时,周期性获取所述DMP及所述DMR的播放位置并比较,在所述DMR的播放位置与所述DMP的播放位置的差值大于预设的阈值时,将所述DMR的播放位置同步到所述DMP。 10. The system of claim 8 or claim 9, characterized in that said of MRCP, for playing the real-time monitoring of the characteristics of the DMP and the playback state of the DMR, the change in the playing characteristics of the DMP, DMP acquires the current playback characteristics and to synchronize the DMR; change in the state of the DMR playing, the playback position of the DMR acquires and synchronizes to the DMP; as well as audio and video media item, the when the playback position acquired periodically DMP and DMR and the comparison, the difference of the DMP playback position is greater than a predetermined threshold value at the position of the DMR playing the playback position to the DMR synchronization of the described DMP.
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