CN101437149B - Method, system and apparatus for providing multilingual program - Google Patents

Method, system and apparatus for providing multilingual program Download PDF

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Publication number
CN101437149B
CN101437149B CN 200710170327 CN200710170327A CN101437149B CN 101437149 B CN101437149 B CN 101437149B CN 200710170327 CN200710170327 CN 200710170327 CN 200710170327 A CN200710170327 A CN 200710170327A CN 101437149 B CN101437149 B CN 101437149B
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language
program
user
media stream
selected
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CN 200710170327
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Chinese (zh)
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CN101437149A (en )
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欧雄兵
胡加伦
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华为技术有限公司
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    • 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
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television, VOD [Video On Demand]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/258Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25808Management of client data
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television, VOD [Video On Demand]
    • H04N21/60Selective content distribution, e.g. interactive television, VOD [Video On Demand] using Network structure or processes specifically adapted for video distribution between server and client or between remote clients; Control signaling specific to video distribution between clients, server and network components, e.g. to video encoder or decoder; 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
    • H04N21/65Transmission of management data between client and server
    • H04N21/658Transmission by the client directed to the server
    • H04N21/6581Reference data, e.g. a movie identifier for ordering a movie or a product identifier in a home shopping application

Abstract

The invention discloses a method, a system and a device for providing multilingual programs, wherein the method comprises the following steps: receiving lingual information selected by a user by a program distribution processing device, filtering media stream according to the lingual information, and transmitting the filtered media stream to a receiving end, wherein the lingual information selected by the user is selected from the obtained lingual information supported by a system. The method, the system and the device can transmit program stream according to selections of users in an interactive television system so that the waste of network bandwidth is avoided.

Description

一种提供多语种节目的方法、系统及装置 A method of providing multilingual programming method, system and apparatus

技术领域 FIELD

[0001] 本发明涉及数字传输领域,特别涉及提供多语种节目的方法、系统及装置。 [0001] The present invention relates to digital transmission, and more particularly relates to a method for multilingual program, system and apparatus. 背景技术 Background technique

[0002] 近年来,电视技术的发展和数字化技术的运用使得多语种节目的制作与播出具备了相应的条件。 [0002] In recent years, the use of digital technology and the development of television technology makes multilingual program production and broadcasting have the appropriate conditions. 多语种节目是指增加了不同语言的伴音和字幕的电视节目,用户在接收端可以根据需求进行伴音及字幕的选择。 Multilingual program means increasing the audio and subtitles in different languages ​​of the television program, the user at the receiving end audio and subtitles can be selected according to the needs. 与此同时,数字电视以及以网络电视(IPTV, Internet Protocol Television)为代表的交互电视的发展也日趋成熟。 At the same time, the development of digital TV and interactive TV with Internet TV (IPTV, Internet Protocol Television), represented matures.

[0003] 目前在数字电视及交互电视中的节目基本都采用运动图像专家组_2传输流(MPEG-2TS,Motion Picture Expert Group-2 Transport Stream)格式进行传输,这种传输方式将音频和视频等数字信号经过压缩编码各自形成基本流(ES,Elementary Stream),将ES按一定的格式分成段落,并加入特定的标志字形成打包基本流(PES,PaCked Elementary Stream)。 [0003] In current digital TV and interactive TV programs have adopted the basic _2 Moving Picture Experts Group transport stream (MPEG-2TS, Motion Picture Expert Group-2 Transport Stream) transmission format, this transmission mode the audio and video and other digital signal formed through compression coding each elementary stream (ES, Elementary stream), the ES into paragraphs according to a certain format, and adding a specific mark formed word packetized elementary stream (PES, paCked Elementary stream). 形成PES后,信号被复用成两种不同类型的码流送入信道,一种叫节目流(PS, ProgramStream),一种叫传输流(TS,Transport Stream)。 After the formation of the PES, signals are multiplexed into two different types of streams into the channel, called a program stream (PS, ProgramStream), called a transport stream (TS, Transport Stream). 其中,PS流适合于无误差的环境,TS流适合于容易产生误差的环境,对于广播应用比较合适,因此一般节目传输都选用TS流。 Wherein, PS stream suitable for error-free environment, the TS stream is adapted to error prone environment, suitable for broadcast applications, it is generally program transport stream TS are selected. 以下着重介绍TS流。 The following highlights TS stream.

[0004] PES进入复用器中,被分割成一个个固定长度的包,成为传输包,由传输包组成的数据流即为TS流。 [0004] PES into the multiplexers, is divided into a fixed-length packet, to become a transmission packet, a data packet transmitted by the TS stream is the stream composed. 传输包的长度为188字节,分为包头和净荷。 The length of the transport packet is 188 bytes, divided into header and payload. 参见图1,图1为现有技术传输包的结构以及在TS流中的位置示意图。 Referring to Figure 1, the structure of FIG. 1 is a prior art schematic diagram of a transport packet and the position in the TS stream. 传输包的包头提供关于传输方面的信息, 例如,加入了同步、有无差错、是否加扰等标志,每个包头中都有一个包标识符(PID,Packet Identifier)来标识该传输包是属于哪个节目流的视频、音频或辅助数据。 Transport packet header provides information about aspects of the transmission, e.g., the addition of synchronization, presence or absence of an error, whether the scramble flag and the like, each header has a packet identifier (PID, Packet Identifier) ​​to identify the transport packet belongs which program stream of video, audio or auxiliary data. 各个节目的TS 流可以经过复用,形成一路总的多节目TS流。 TS stream through each program may be multiplexed to form a general way a multi-program TS stream.

[0005] 字幕也是封装在TS流中进行传输,目前多语种字幕可以采用两种方式进行封装传输:第一种对于不同语种的字幕可以使用相同PID的传输包传输,但需要通过不同的页码标识符(page_id)域来指示不同的语种;第二种方式是对于不同语种的字幕使用不同PID的传输包传输。 [0005] The package is subtitle stream TS for transmission, multi-lingual subtitles are currently two ways to encapsulate transmission: transmitting a first packet transmission may be used for the same PID subtitles in different languages, but need different page identifier character (the page_id) field to indicate the different languages; second way is to use different languages ​​of subtitles different PID of the transport packet transmission. 其中第二种方式为优选方式。 Wherein the second mode is preferred.

[0006] 为了让接收端的解码器能够知道哪些基本信息流属于某个节目从而对PES进行解复用,需要在TS流中周期性地加入附加信息来说明可用的节目与组成他们的传输包的PID之间的关系,这种信息称为节目特定信息,这些节目特定信息也是以传输包的格式包含于TS流中,最常用的两个节目特定信息是节目关联表(PAT,Program Association Table) 和节目映射表(PMT,Program Map Table)。 [0006] In order for the receiving side is able to know what the decoder is part of a program elementary stream PES thereby demultiplexing, the additional information necessary to periodically added to the TS stream composition described programs available and their transport packets the relationship between the PID, this information is referred to as program specific information, which is contained in the program specific information stream in a TS packet format for transmission, the two most commonly used program specific information is a program association table (PAT, program association table) and program map table (PMT, program map table). 图2为现有技术包含PAT的传输包的结构示意图,其自身的PID固定取值为0。 Figure 2 contains a schematic diagram of the structure of transport packet of the PAT as the prior art, its own PID fixed to 0. PAT中列出了所有包含PMT的传输包的PID。 PAT lists all the PID of transport packets containing PMT. 图3为现有技术包含PMT的传输包的结构示意图,PMT定义一组与一个节目相关的PID值,每一个PID 对应于该节目中的一个PES。 FIG 3 is a schematic structural diagram of the prior art comprises a PMT transport packet, PMT define a set of a program associated with the PID values, each corresponding to a PES PID of the program. 接收端收到TS流后,首先查询PAT和PMT,得到每个传输包的PID,之后就可以根据PID信息分别过滤出视频流、伴音流、字幕流,并分别送给不同的解码器进行解码输出。 After the receiver receives the TS, the PAT and the PMT first query, obtain PID of each transport packet, respectively, can be filtered after a video stream, audio stream, subtitle stream according to the PID information, and are sent to different decoders decodes output. [0007] 另外,目前数字电视及交互电视中的节目还可以采用因特网流媒体联盟(ISMA, Internet Streaming Media Alliance)方式进行传输,这种方式将视频、音频、数据分别在不同的实时传输协议(RTP,Real-time TransportProtocol)包中进行传输,RTP包的头域中的负载类型(PT,Payload Type)域,用于指示该RTP包中包含什么格式的数据。 [0007] In addition, the current digital television and interactive television programming also can use the Internet Streaming Media Alliance (ISMA, Internet Streaming Media Alliance) to be transmitted in this way video, audio, data, respectively, in different real-time transport protocol ( RTP, Real-time TransportProtocol) packets for transmission, the type of load of the RTP packet header field (PT, Payload type) field for indicating what data format of the RTP packet contains.

[0008] 可见,现有的多语种节目的传输方式,都是将节目所有语种的伴音和字幕都传输到接收端,由接收端负责根据用户的意愿来选择合适的伴音和字幕进行解码,对于没有被用户选择的伴音和字幕则直接丢弃,这种方式在网络上传输那些用户不需要的伴音和字幕,浪费了网络带宽资源。 [0008] visible, transmission of the conventional multi-lingual programs, the programs are all audio and subtitle languages ​​are transmitted to the receiving side, the receiving side is responsible to select the appropriate audio and subtitle decoding according to user's intention, for not selected by the user audio and the caption will be discarded in this way the transmission of those unwanted audio and subtitle user in the network, waste of network bandwidth resources.

发明内容 SUMMARY

[0009] 本发明实施例利用交互电视系统的交互性,提出一种提供多语种节目的方法,该方法能够在交互电视系统中根据用户的选择传输节目流,从而避免对网络带宽的浪费。 Example using interactive interactive television system, to provide a method of providing multilingual program [0009] the present invention, the method can be selected according to a user's program transport stream, thereby avoiding the waste of network bandwidth in the interactive television system.

[0010] 本发明实施例还提出一种系统和装置,能够在交互电视系统中根据用户的选择传输节目流,从而避免对网络带宽的浪费。 [0010] The present invention further provides a system and a device, based on user selection of a program transport stream in the interactive television system, thereby avoiding the waste of network bandwidth.

[0011] 本发明的技术方案是这样实现的: [0011] aspect of the present invention is implemented as follows:

[0012] 一种提供多语种节目的方法,包括: [0012] A multilingual program, comprising:

[0013] 节目分发处理装置获取以MPEG-2TS格式传输的原始媒体流,接收用户选定的语种信息,根据用户选定的语种信息查询所述原始媒体流中的PAT和PMT,得到用户选定的语种的数据包的PID值,从原始媒体流中选出所述PID值的数据包,生成过滤后的媒体流,将过滤后的媒体流发送至接收端; [0013] In the program distribution processing apparatus acquires the original media stream MPEG-2TS format transmitted, received user-selected language information according to user-selected information query language of the original media stream the PMT and PAT, to give a user-selected PID values ​​of the packets language, selected from the original data packet of the media stream PID value, is generated after filtration media stream, the media stream to the receiving side filter;

[0014] 所述用户选定的语种信息为:用户从获取的系统支持的语种信息中选定的语种信息。 [0014] The user-selected language information: user-selected language information supported by the system from the acquired language information.

[0015] 一种提供多语种节目的系统,包括: [0015] A multilingual program, comprising:

[0016] 接收端,用于获取系统支持的语种信息,将用户从系统支持的语种信息中选定的语种信息发送至节目分发处理装置,并接收节目分发处理装置发送的过滤后的媒体流。 [0016] receiving end, language support system for acquiring information, the user sends the selected language information from the language supported by the system information to the program distribution processing apparatus, and the reception processing program distribution media stream transmitted from the filter means.

[0017] 节目分发处理装置,用于获取以MPEG-2TS格式传输的原始媒体流,根据从接收端收到的用户选定的语种信息查询原始媒体流中的PAT和PMT,得到用户选定的语种的数据包的PID值,从原始媒体流中选出所述PID值的数据包,生成过滤后的媒体流,将过滤后的媒体流发送至接收端。 [0017] The program distribution processing means for acquiring the original MPEG-2TS format of the media stream transmission, the original media stream query PAT and PMT according to the user from the reception side receives the selected language information selected by a user to give PID values ​​of the packet language, selected from the original data packet of the media stream PID value, is generated after filtration media stream, the media stream to the receiving side filter.

[0018] 一种提供多语种节目的装置,包括: [0018] An apparatus for providing multilingual program, comprising:

[0019] 接收模块,用于接收用户选定的语种信息; [0019] a receiving module, configured to receive a user-selected language information;

[0020] 过滤模块,包括原始媒体流获取子模块、选择子模块和过滤媒体流生成子模块;其中, [0020] The filtration module, the original media stream comprising obtaining sub-module, and a selection sub-module filtration media stream generation sub-module; wherein,

[0021] 所述原始媒体流获取子模块,用于从节目源获取以运动图像专家组_2传输流MPEG-2TS格式传输的原始媒体流; [0021] the original media stream obtaining sub-module, configured to obtain _2 to Moving Picture Experts Group transport stream MPEG-2TS format transmitted from the program source of the original media stream;

[0022] 选择子模块,用于根据用户选定的语种信息查询所述原始媒体流中的节目关联表PAT和节目映射表PMT,得到用户选定的语种的数据包的包标识符PID值,从原始媒体流中选出所述PID值的数据包; [0022] The selection sub-module, according to the associated user-selected language information of the original media stream query program table PAT and the PMT Program Map Table, packet data packet to obtain a user-selected language identifier PID values, selected PID value of the packets from the original media stream;

[0023] 过滤媒体流生成子模块,用于采用选择子模块中选出的数据包生成过滤后的媒体流; [0023] Filter media stream generation sub-module, adapted to use the media stream selection sub-module packet generation selected filter;

[0024] 发送模块,用于将过滤模块过滤后的媒体流发送至接收端。 [0024] transmitting means for filtering the media stream to the filter module receiving end.

[0025] 可见,本发明实施例提出的方法、系统及装置,利用了交互电视系统双向交互性的特点,将用户选定的语种信息发送至节目分发处理装置,节目分发处理装置根据收到的用户选定的语种信息过滤媒体流,只让用户真正需要的语种的伴音和字幕在网络上传输,而将用户不需要的伴音和字幕过滤掉,从而避免对网络带宽资源的浪费。 [0025] visible, the method proposed embodiment, the system and apparatus according to the present invention, use of the characteristics of the interaction of two-way interactive television system, the user sends the selected language information to the program distribution processing apparatus, a program distribution device according to the received processing user-selected language information filtering media stream, only let users really need language audio and subtitles transmitted over the network, and the user does not need to filter out the audio and subtitles, thus avoiding the waste of network bandwidth resources.

[0026] 附图说明 [0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] 图1为现有技术传输包的结构以及在TS流中的位置示意图; [0027] FIG. 1 is a prior art structure of transport packet and the position in the TS stream schematic;

[0028] 图2为现有技术包含PAT的传输包的结构示意图; [0028] FIG. 2 is a schematic structural diagram of the prior art comprises a transport packet of the PAT;

[0029] 图3为现有技术包含PMT的传输包的结构示意图; [0029] Figure 3 contains a schematic structural diagram of a PMT transport packet prior art;

[0030] 图4为本发明实施例提供多语种节目的方法流程图; [0030] Figure 4 provides a flowchart of a method multilingual program embodiment of the present invention;

[0031] 图5为本发明实施例一提供多语种节目的具体实现流程图; [0031] FIG. 5 of the present embodiment provides a specific embodiment of a program flow chart for implementing multilingual invention;

[0032] 图6为本发明实施例一修改前的TS流结构示意图; [0032] FIG. 6 is a schematic structure of the front TS stream according to a modified embodiment of the present invention;

[0033] 图7为本发明实施例一修改后的TS流结构示意图; [0033] FIG. 7 is a schematic structure of a TS stream according to a modified embodiment of the present invention;

[0034] 图8为本发明实施例二提供多语种节目的具体实现流程图; [0034] FIG. 8 according to the second embodiment of the present specific multilingual program flow chart for implementing the invention;

[0035] 图9为本发明实施例二修改后的PMT的结构示意图; [0035] FIG. 9 is a schematic structure of a PMT according to a second modified embodiment of the present invention;

[0036] 图10为本发明实施例二修改前的TS流结构示意图; [0036] FIG. 10 is a schematic front TS stream structure according to a second modified embodiment of the present invention;

[0037] 图11为本发明实施例二修改后的TS流结构示意图; [0037] FIG. 11 is a schematic structure of a TS stream according to a second modified embodiment of the present invention;

[0038] 图12为本发明实施例提供多语种节目的系统的结构示意图; [0038] FIG. 12 is a schematic view of an embodiment of the structure of the system providing multilingual programs invention;

[0039] 图13为本发明实施例提供多语种节目的装置的结构示意图。 [0039] FIG. 13 is a schematic view of the structure of an embodiment of the apparatus of the invention to provide multilingual program.

[0040] 具体实施方式 [0040] DETAILED DESCRIPTION

[0041] 本发明实施例提出一种提供多语种节目的方法,参见图4,图4为本发明实施例提供多语种节目的方法流程图,该方法包括: The method of embodiment [0041] Example embodiments provide a method of providing multilingual program of the present invention, referring to FIG. 4, FIG. 4 of the present invention provides multilingual program flowchart, the method comprising:

[0042] 步骤401 :节目分发处理装置接收用户选定的语种信息。 [0042] Step 401: processing program distribution apparatus receives language information selected by the user. 其中,用户选定的语种信息为:用户从获取的系统支持的语种信息中选定的语种信息。 Wherein the user selected language information: user selected from the multilingual information system to support the acquisition of language information.

[0043] 步骤402 :节目分发处理装置根据所述语种信息过滤媒体流。 [0043] Step 402: processing program distribution media stream filtering apparatus according to the language information.

[0044] 步骤403 :节目分发处理装置将过滤后的媒体流发送至接收端。 [0044] Step 403: the program distribution media processing apparatus filtered stream to a receiving end.

[0045] 上述步骤401中,接收端获取系统支持的语种信息的方式为:接收端从电子节目指南(EPG,Electronic Program Guide)获取系统支持的语种信息。 [0045] The above step 401, the receiving end acquires language information system supports a manner as to: receive from the acquisition system to support an electronic program guide (EPG, Electronic Program Guide) information terminal language.

[0046] 上述方法中,步骤401中系统支持的语种信息可以包括节目源提供的语种信息; 或者除节目源提供的语种信息外,还包括系统能够翻译的语种信息。 [0046] The above-described method, the language information supported by the system in step 401 may include language information of the program source; exception of the language or program source information provided by the system further comprising a language information can be translated. 针对上述两种情况,步骤402中所述的过滤方式不同。 For both cases, the different steps of filtration 402.

[0047] 当系统支持的语种信息仅包括节目源提供的语种信息时,用户从中选择的语种信息只可能是节目源提供的语种信息,步骤402中过滤媒体流的方法为:从原始媒体流中过滤出用户所选定的语种的数据包,生成过滤后的媒体流。 [0047] When language information supported by the system include only the language information of the program provided by the source, the user select the language information may be the only language information of the program provided by the source, the method in step 402 the filter media stream is: from the original media stream filtered language selected by the user data packet, generating a media stream after filtration.

[0048] 当系统支持的语种信息包括节目源提供的语种信息及能够翻译的语种信息时,用户从中选择的语种信息是:节目源提供的语种信息、和/或系统能够翻译的语种信息。 [0048] When language information includes a language supported by the system information of the program source can be provided, and language translation information, the user to select the language information: program source to provide multilingual information and / or language translation system capable of information. 这种情况下,步骤402中过滤媒体流的方法为:从原始媒体流中过滤出用户所选定的语种的数据包、和/或根据用户选定的语种信息由系统翻译生成的语种的数据包,生成过滤后的媒体流。 In this case, the method in step 402 to filter the media stream: filter out language selected by the user from the original media data packet stream, and / or data according to user-selected language translation information generated by the system languages packet, the media stream is generated and filtered.

[0049] 以下以IPTV系统为例,详细介绍本发明实施例提供多语种节目的方法。 [0049] In the IPTV system as an example, the method described in detail embodiments of the present invention provides multilingual program. 目前各个标准定义的IPTV架构虽微有差别,但在架构中都有媒体功能(MF,Media Function)实体负责媒体流的分发和处理,因此,以下的实施例以MF实体作为节目分发处理装置进行举例说明。 Currently respective standards defined IPTV architecture, although a slight difference, but in both architectures and processing the media distribution functions (MF, Media Function) entity is responsible for the media stream, therefore, the following embodiments as a processing program distribution means MF entity for example.

[0050] 实施例一: [0050] Example a:

[0051] 本实施例中,系统支持的语种仅包括节目源所提供的节目的语种,系统中的节目采用MPEG-2TS格式进行传输。 [0051] In this embodiment, the system comprises a supported language source program provided by a program language only, the system uses a program MPEG-2TS format for transmission. 参见图5,图5为本发明实施例一提供多语种节目的具体实现流程图。 Referring to FIG. 5, FIG. 5 embodiment a multilingual program flow chart for implementing the present invention.

[0052] 步骤501 :用户通过接收端接入网络,从EPG获取系统支持的语种信息。 [0052] Step 501: the user, the system supports the acquisition by the receiving terminal from the access network language EPG information. 在使用TS流传输时,可以用如下扩充的会话描述协议(SDP,Session DescriptionProtocol)描述指示节目的语种信息,当然,实际中可以给用户提供的语种类别需要考虑到用户的个人(profile)信息和权限等。 When using the TS stream transmission, with the following extensions Session Description Protocol (SDP, Session DescriptionProtocol) description indicates the program language information, of course, language category may be practical to provide the user needs to take into account the user's personal (Profile) information and permissions. 在下面的描述中通过扩充属性“a = audiolang”和“a = textlang”来指示TS流中的伴音的语种信息和字幕的语种信息: In the following description to refer to the sound stream TS by the extended attributes "a = audiolang" and "a = textlang" multilingual information and subtitle language information:

[0053] v = 0 [0053] v = 0

[0054] 0 = -2890844526 2890842807 IN IP4 192.16.24.202 [0054] 0 = -2890844526 2890842807 IN IP4 192.16.24.202

[0055] s = SDP Session [0055] s = SDP Session

[0056] a = control:sdp://ts. example, com/twister/ts [0056] a = control: sdp:. // ts example, com / twister / ts

[0057] m = video 7722 RTP/AVP 33// 在RFC3551 中定义33 为MPEG-2TS 流对应的PT 类型; [0057] m = video 7722 RTP / AVP 33 // 33 defined as the MPEG-2TS stream corresponding to the type of the PT in RFC3551;

[0058] a = audiolang: zh, en//指示节目中的伴音支持汉语和英语,汉语(“zh” )为默认语种; [0058] a = audiolang: zh, en // indicating that the program is sound support Chinese and English, Chinese ( "zh") as the default language;

[0059] a = teXtlang:zh,en//指示节目中的字幕支持汉语和英语,汉语(“zh”)为默认语种。 [0059] a = teXtlang: zh, en // instruct the program to support Chinese and English subtitles, Chinese ( "zh") as the default language.

[0060] 容易理解的是,以上仅为本发明实施例的一种实现方式,在实际应用中,也可以自行配置具体的扩展SDP方式,只要能够将系统支持的语种信息传送给用户接收端即可。 [0060] readily understood that the above is only one implementation of the embodiment of the present invention, in practical applications, can also self-configure SDP extension specific embodiment, the language information transmission can be supported by the system as long as the user receiving side i.e. can.

[0061] 步骤502 :用户发起节目请求,可以使用默认语种或者指定其它语种,并且对伴音和字幕可以分别指定,本步骤中用户选择伴音为英语,字幕为汉语,接收端通过信令消息,如会话发起协议(SIP,Session Initiation Protocol)或者实时数据流协议(RTSP, Real-Time Streaming Protocol)消息向应用服务器(AS,Application Server)申请获取节目,消息的SDP描述部分如下: [0061] Step 502: a user request to initiate a program, or can use the default language specified other languages, and may specify audio and subtitles respectively, in this step the user selects English audio, subtitles in Chinese, the receiving end through a signaling message, such as session initiation protocol (SIP, session initiation protocol), or real-time streaming protocol (RTSP, real-Time streaming protocol) message to the application server (aS, application server) Get the application program, SDP message part is described as follows:

[0062] [0062]

[0063] [0063]

型; type;

[0064] [0064]

[0065] [0065]

[0066] [0066]

a = control:rtsp://ts. example, com/twister/ts a = control: rtsp:. // ts example, com / twister / ts

m = video 8822 RTP/AVP 33// 在RFC3551 中定义33 为MPEG—2TS 流对应的PT 类 m = video 8822 RTP / AVP 33 // defined in RFC3551 33 as MPEG-2TS stream corresponding to class PT

a = audiolang:en//指示节目中的伴音用英语; a = audiolang: en // indicating the audio program in English;

a = textlang: zh//指示节目中的字幕用汉语,也可以不指定,则默认为汉语。 a = textlang: zh // indicate program with Chinese subtitles, you can not specify, the default is Chinese. 步骤503 :AS将用户指定的节目信息和伴音、字幕的语种信息通过信令消息指示给MF,信令可以是SIP、RTSP或者H. 248等。 Step 503: AS program designated by the user and audio information, subtitle language information by indicating to MF signaling message, the signaling may be SIP, RTSP H. 248 or the like.

[0067] 步骤504 :MF成功接收到AS发来的信令消息后,向AS返回2000K消息。 [0067] Step 504: After MF successfully received signaling message sent by the AS, the AS returns the 2000K message.

7[0068] 步骤505 :AS成功接收到MF发来的2000K消息后,给接收端返回2000K消息; 7 [0068] Step 505: After receiving a successful AS MF sent message 2000K, 2000K message to the receiving terminal returns;

[0069] 步骤506 :MF从节目源获取节目的TS流; [0069] Step 506: MF acquiring program TS stream from the program source;

[0070] 步骤507 :MF对节目源中的多语种伴音信息和字幕信息进行分析,只让选定的语种的伴音和字幕通过网络传输到用户。 [0070] Step 507: MF for multilingual audio program information and caption information sources were analyzed, only allow the selected audio languages ​​and subtitles transmitted to the user over the network. 以下以TS流中的包含PAT及PMT的传输包如附图2和附图3所示为例,说明如何选出传输包并形成修改后的TS流: The following TS packet stream to transmit PAT and PMT contains as shown in Figures 2 and 3 illustrate how the selected transport packet to form a modified stream TS:

[0071] a)首先分析从节目源发送来的TS流,找到PID为0的传输包,该传输包中包含的是PAT表,查找PAT表,假设当前TS流属于第3号节目,获得包含当前TS流所对应的节目的PMT表的传输包的PID为1127 ; [0071] a) Firstly, transmitted from the program source TS stream, to find the PID of transport packets 0, the transmission comprising a packet is PAT table, find the PAT, assumed that the current TS streams belonging to the No. 3 program, a composition comprising PID of the transport packet stream the PMT TS corresponding to the program currently 1127;

[0072] b)在TS流中搜索PID为1127的传输包,该传输包中包含的是PMT表,从而获得视频信号所对应的PID为726,汉语伴音和英语伴音所对应的PID分别为55、57,汉语字幕和英语字幕所对应的PID分别为1000、1022 ; [0072] b) search in the TS stream PID of a transport packet 1127, the transmission comprising a packet is the PMT table to obtain a video signal corresponding to the PID is 726, Chinese audio and the English audio corresponding to the PID is 55 57, Chinese subtitles and English subtitles corresponding PID were 1000,1022;

[0073] c)既然用户选定英语伴音和汉语字幕,则根据PID将汉语伴音和英语字幕过滤掉,只选出包含英语伴音和汉语字幕的数据包,形成修改后的TS流。 [0073] c) Since the user selected sound in English and Chinese caption, the PID according to the Chinese and English subtitles sound was filtered off, only selected data packets contain audio English and Chinese caption, the modified TS stream is formed. 图6为本发明实施例一修改前的TS流结构示意图,图7为本发明实施例一修改后的TS流结构示意图。 FIG 6 is a schematic view of the structure of a TS stream according to a modified embodiment of the front FIG. 7 is a schematic structure of a TS stream according to a modified embodiment of the invention the present invention. 可见,修改后的TS流中包含用户选定的英语伴音和汉语字幕的数据包,而将其他用户未选定的伴音和字幕数据包过滤掉,从而节省了网络带宽资源。 Visible, TS stream contains the modified user-selected audio and English subtitles Chinese data packets, while the other user is not selected audio and subtitle data packet filtering out, thereby saving network bandwidth resources.

[0074] d)对修改后的TS流再进行RTP/用户数据报协议(UDP,User DatagramProtocol) 封装,通过网络发送给接收端; [0074] d) modifying the TS stream then the RTP / User Datagram Protocol (UDP, User DatagramProtocol) package, sent to the receiver through the network;

[0075] e)接收端收到修改后的TS流后,同样经过搜索PAT表信息和PMT表信息,获知视频对应的PID为726,英语伴音所对应的PID为57,汉语字幕所对应的PID为1000,从而就可以根据PID信息分别过滤出视频流、伴音流和字幕流分别送给不同的解码器进行解码输出。 [0075] e) after the receiver receives the modified stream TS, the same information after searching the PAT and PMT table information, known as PID 726 corresponding to the video, English audio PID corresponding to 57, corresponding to the PID Chinese subtitle 1000, respectively, so that can be filtered video stream, audio stream and subtitle stream are sent to different decoders for decoding outputs according to the PID information. 本步具体实现方式与现有技术相同。 This specific implementation steps prior art the same.

[0076] 步骤508 :用户在收看节目的过程中可以通过接收端向MF发送SIP消息,要求改变伴音和字幕的语种(或者,SIP消息也可以发到AS,再由AS转发),假设用户要修改为汉语伴音,英语字幕,则消息的SDP描述可以如下: [0076] Step 508: the user may be sent in the process of watching a program by the receiving end to the MF SIP message requires a change audio and subtitle languages ​​(or, the SIP message may be sent to the AS, and then forwarded by the AS), assuming that the user to amended to Chinese audio, English subtitles, the SDP message may be described as follows:

[0077] a = audiolang:zh//指示节目中的伴音用汉语 [0077] a = audiolang: zh // indicating the audio program in Chinese

[0078] a = teXtlang:en//指示节目中的字幕用英语 [0078] a = teXtlang: en // indicate program English subtitles

[0079] 步骤509 :MF成功接收到接收端发来的SIP消息后,理解消息内容,并接受请求,返回2000K消息; [0079] Step 509: After receiving end MF successfully received SIP messages sent, message content understood, and accept the request, returns the 2000K message;

[0080] 步骤510 :MF按照新的语种要求对伴音和字幕重新进行过滤,形成新的修改后的TS流,发送给接收端。 [0080] Step 510: MF according to the requirements of the new language audio and subtitle filtered again, forming a new stream TS modified, sent to the receiver.

[0081] 上述实施例一中,系统支持的语种仅包括节目源所提供的原始节目流的语种,为了提高用户的使用体验,还可以采用MF实体提供翻译,或者采用系统中的其他网元,如IP 多媒体子系统(IMS,IP Multimedia Subsystem)网络中的媒体资源功能处理器(MRFP, Media Resource Processor)完成翻译功能,这种情况只需要在MF实体和MRFP之间进行消息交互。 [0081] a in the above-described embodiment, the supported languages ​​including only language program sources provided by original program stream, in order to enhance the user's experience, may also be employed MF entity that provides translation, or to use the system to other network elements, such as IP multimedia subsystem (IMS, IP multimedia subsystem) network media resource function processor (MRFP, media resource processor) complete the translation function, this situation only need to exchange messages between the MF entity and MRFP. 利用系统的翻译功能,可以为给用户提供原始节目流中所没有的伴音和字幕,从而为用户提供更为灵活的多语种节目服务。 Using the translation function of the system can provide the original program does not have audio stream and subtitles to the user, to provide users with a more flexible multilingual program services. 以下举具体实施例二详细说明,在实施例二中,系统支持的语种除包括节目源所提供的原始节目流的语种外,还进一步包括系统能够翻译的语种。 For the following detailed description of two particular embodiments, in addition to the source language includes a program provided by the original program stream, further comprising language translation system capable of language in the second embodiment, the system supports. [0082] 实施例二: [0082] Example II:

[0083] 参见图8,图8为本发明实施例二提供多语种节目的具体实现流程图。 [0083] Referring to FIG. 8, FIG. 8 according to the second embodiment of the present specific multilingual program flow chart for implementing the invention.

[0084] 步骤801 :用户通过接收端接入网络,从EPG获取系统支持的语种信息。 [0084] Step 801: the user, the system supports the acquisition by the receiving terminal from the access network language EPG information. 此时给用户提供的语种除节目源本身提供的语种以外,还包括MF能够翻译的目标语种。 At this time, the user language other than the language to provide program source itself provides, further comprising a target language translation can be MF. 根据MF能力的不同,提供的伴音语种和字幕语种的种类不一定一样。 Depending on the capabilities of the MF, the type of audio languages ​​and subtitles languages ​​provided it is not necessarily the same. 本实施例中,节目源提供汉语和英语的伴音和字幕,MF可以完成英语到法语的转换,则此时系统支持的语种包括:汉语、英语、法语的伴音和字幕。 In this embodiment, the program source provides audio and Chinese and English subtitles, the MF can complete conversion French to English, the language supported by the system at this time include: Chinese, English, French audio and subtitles.

[0085] 步骤802 :用户发起业务请求,选择伴音为汉语,字幕为法语。 [0085] Step 802: the user initiates a service request, select audio as Chinese, French subtitles.

[0086] 步骤803〜步骤806与步骤503〜步骤506相同,不在赘述。 The same [0086] Step 803~ Step 806 and step 503~ step 506, not described herein.

[0087] 步骤807 :MF对节目源中的多语种伴音信息和字幕信息进行分析,只让选定的语种的伴音和字幕通过网络传输到用户,并且需要根据实际情况修改PMT的信息。 [0087] Step 807: MF for multilingual caption information and audio information in the source program is analyzed, so that only the selected audio language and subtitles transmitted over the network to the user, and the need to modify the PMT information in the actual situation. 以下以TS 流中的包含PAT及PMT的传输包如附图2和附图3所示为例,说明如何选出传输包、修改PMT、并形成修改后的TS流: The following TS packet stream to transmit PAT and PMT contains as shown in Figures 2 and 3 illustrate how the selected transport packets, modified PMT, the TS stream and the modified form:

[0088] a)首先分析从节目源发送来的TS流,找到PID为0的传输包,该传输包中包含的是PAT表,查找PAT表,从而获得包含当前TS流所对应的节目的PMT表的传输包的PID为1127 ; [0088] a) Firstly, transmitted from the program source TS stream, to find the PID of transport packets 0, the transmission comprising a packet is PAT table, find the PAT to obtain a PMT containing the current program TS stream corresponding PID of the transport packet table 1127;

[0089] b)在TS流中搜索PID为1127的传输包,该传输包中包含的是PMT表,从而获得视频信号所对应的PID为726,汉语伴音和英语伴音法语伴音所对应的PID分别为55、57,汉语字幕和英语字幕所对应的PID分别为1000、1022 ; [0089] b) search in the TS stream PID of a transport packet 1127, the transmission comprising a packet is the PMT table to obtain a video signal corresponding to the PID is 726, Chinese audio and the English audio French audio corresponding to the PID, respectively to 55, 57, Chinese subtitles and English subtitles corresponding PID were 1000,1022;

[0090] c)由于节目源没有提供法语字幕,所以需要利用MF的翻译功能完成英语字幕到法语字幕之间的转化,转换可能是实时软件翻译,对于热门节目也可以事先做好英语字幕和法语字幕之间的对应数据库,只需要直接查找数据库就可以。 [0090] c) Since the program source did not provide subtitles in French, so need to use the translation feature MF English subtitles to complete the conversion between the French subtitles, conversion may be real-time translation software for popular programs can also be well in advance of English and French subtitles correspondence between the database subtitles only direct database lookup can be. 具体实施时首先从TS流中过滤出来PID为1022的英文字幕流,将英文字幕流进行解码后提交给翻译模块进行转换, 将转换得到的法文字幕信息经过编码后封装为PID为123的传输包; First filtered particular implementation from the TS stream out PID of 1022 English subtitle stream, the English subtitle stream after decoding submitted to a translation module converts the converted French caption information after encoding encapsulating PID of the transport packet 123 ;

[0091] d)为使接收端收到TS流后能够分解出视频、音频、字幕数据包,还需要在修改后的TS流中增加系统翻译的语种的传输包与该语种的对应关系,具体到本实施例,也就是说:由于节目源提供的TS流的PMT中没有法语字幕所对应的PID,需要修改PMT,参见图9, 图9为本发明实施例二修改后的PMT的结构示意图,在其中插入法语字幕所对应的PID信息,这里法语字幕所对应的PID为123。 [0091] d) After receiving the reception of a TS stream can be decomposed video, audio, caption data packets, the system also need to increase the correspondence relationship language translation language transport packets in the TS stream after modification, particularly Since the PMT structural diagram of the program provided by the source is not a TS stream corresponding to the PID French subtitle, need to be modified PMT, see FIG. 9, FIG. 9 PMT according to a second modified embodiment of the present invention: the present embodiment, that is to say in which PID information into the corresponding French subtitles, French subtitles corresponding to herein as PID 123.

[0092] e)采用用户选择的语种的传输包、以及修改PMT信息后的传输包,形成修改后的TS流。 [0092] e) language selected by the user using transport packets, and transport packets modify the PMT information, the modified TS stream is formed. 图10为本发明实施例二修改前的TS流结构示意图,图11为本发明实施例二修改后的TS流结构示意图。 FIG 11 is a schematic structure of a TS stream according to a second modified embodiment of the present invention, a schematic structure of the front TS stream according to a second modified embodiment 10 of the present invention. 可见,修改后的TS流中包含用户选定的汉语伴音和法语字幕的传输包,而将其他用户未选定的伴音和字幕传输包过滤掉,从而节省了网络带宽资源;并且,法语字幕是利用MF的翻译功能提供给用户的,可见本实施例能够给用户更为灵活的语种选择,提高了用户体验。 Seen, the TS stream containing the modified user-selected audio and French subtitles in Chinese transport packets, while the other non-selected users and subtitle audio transport packets filtered off, saving the network bandwidth resources; and French subtitles MF use translation function available to the user, showing that this embodiment can give users a more flexible language selection, enhance the user experience.

[0093] f)对处理后的TS流再进行RTP/UDP封装,通过网络发送给用户终端; [0093] f) the TS stream then treated RTP / UDP package to the user terminal through the network;

[0094] g)用户终端收到过滤后的TS流后,同样经过搜索PAT信息和PMT信息,获知视频对应的PID为726,汉语伴音所对应的PID为55,法语字幕所对应的PID为123,从而就可以根据PID信息分别过滤出视频流、伴音流和字幕流分别送给不同的解码器进行解码输出。 [0094] g) the user terminal receives the filtered stream TS, the same search through the information of the PAT and PMT information, PID of the corresponding known video 726, audio corresponding to the PID Chinese 55, corresponding to French subtitle PID 123 , respectively, so that can be filtered video stream, audio stream and subtitle stream are sent to different decoders for decoding outputs according to the PID information. [0095] 步骤808 :用户在收看节目的过程中可以通过接收端向MF发送SIP消息,要求改变伴音和字幕的语种;或者,SIP消息也可以发到AS,再由AS转发。 [0095] Step 808: a user during watching a program may send a SIP message to the receiving end through MF, required to change the subtitle languages ​​and audio; or, SIP messages can also be sent to the AS, and then forwarded by AS.

[0096] 步骤809 :MF成功接收到用户终端发来的SIP消息后,理解消息内容,并接受请求, 返回2000K消息; [0096] Step 809: After receiving the user terminal successfully MF sent from the SIP message, the message content is understood, and accept the request, it returns the 2000K message;

[0097] 步骤810 :MF按照新的语种要求重新修改TS流并发送至接收端,具体方式与步骤807相同,不再赘述。 [0097] Step 810: MF according to the new language to revise claim TS stream and transmitted to the receiving side, the same DETAILED step 807 is omitted.

[0098] 在本实施例中,用户选择的伴音为汉语,是节目源本身提供的语种;选定的字幕为法语,是MF能够翻译的语种。 [0098] In the present embodiment, the user selects the sound of the Chinese, is itself provides multilingual program source; selected French subtitles, MF is able to translate languages. 在本发明的其他实施例中,用户也可能只选择节目源本身提供的语种,这种情况只需要过滤用户所选语种的传输包,由于没有新增的翻译的传输包,因而不需要修改TS流中的PMT ;或者,用户还可能只选择了MF能够翻译的语种,这种情况需要生成翻译语种的数据包,并且修改TS流中的PMT,形成新的TS流。 In other embodiments of the present invention, the user may select only the language itself provides a program source, this language selected by the user only needs to filter transport packet, since no new transport packet translation, thus eliminating the need to modify TS stream the PMT; or the user may also be able to select only the MF language translation, language translation of this situation is necessary to generate data packets and to modify the PMT TS stream, to form a new TS stream.

[0099] 实施例三: [0099] Example III:

[0100] 在本实施例中,系统中的节目采用因特网流媒体联盟(ISMA,IntemetStreaming Media Alliance)方式传输,这时视频、音频和数据流不是复用在一起传输,而是分别在不同的RTP包中进行传输。 [0100] In the present embodiment, the system uses a program (ISMA, IntemetStreaming Media Alliance) transmission through the Internet Streaming Media Alliance embodiment, when the video, audio and data streams multiplexed transmission is not together, but in separate RTP packet transmission.

[0101] 步骤1 :用户通过接收端接入网络,从EPG获取系统支持的语种信息。 [0101] Step 1: User acquisition system supported by the receiver terminal from the access network language EPG information. 在使用ISMA 方式传输时,可以采用如下的SDP描述指示节目的语种信息,这里为字幕流扩充为媒体类型video,媒体子类为subtitle : ISMA used in transmission mode, it can be described using language information indicating a program SDP below, where the flow is expanded to the media type video subtitles, media subclass of subtitle:

[0102] m = video 49170 RTP/AVP 98 [0102] m = video 49170 RTP / AVP 98

[0103] a = rtpmap: 98 H264/90000//假设节目采用的视频编解码是H264编解码 [0103] a = rtpmap: video codec 98 H264 / 90000 // assumed that the program uses the H264 codec

[0104] m = audio 7724 RTP/AVP 99 [0104] m = audio 7724 RTP / AVP 99

[0105] a = rtpmap:99 mpeg4-generic/44100/2 [0105] a = rtpmap: 99 mpeg4-generic / 44100/2

[0106] a = lang:zh//指示该伴音为汉语,默认语种 [0106] a = lang: zh // indicates that the sound is Chinese, the default language

[0107] m = audio 7726 RTP/AVP 100 [0107] m = audio 7726 RTP / AVP 100

[0108] a = rtpmap:100 mpeg4-generic/44100/2 [0108] a = rtpmap: 100 mpeg4-generic / 44100/2

[0109] a = lang:en//指示该伴音为英语 [0109] a = lang: en // indicates that the audio is English

[0110] m = audio 7728 RTP/AVP 101 [0110] m = audio 7728 RTP / AVP 101

[0111] a = rtpmap:101 mpeg4-generic/44100/2 [0111] a = rtpmap: 101 mpeg4-generic / 44100/2

[0112] a = lang:fr//指示该伴音为法语 [0112] a = lang: fr // indicates that the audio to French

[0113] m = video 7730 RTP/AVP 102 [0113] m = video 7730 RTP / AVP 102

[0114] a = rtpmap:102 subtitle/1000 [0114] a = rtpmap: 102 subtitle / 1000

[0115] a = lang:zh//指示该字幕为汉语,默认语种 [0115] a = lang: zh // indicates that the subtitles in Chinese, the default language

[0116] m = video 7732 RTP/AVP 103 [0116] m = video 7732 RTP / AVP 103

[0117] a = rtpmap:103 subtitle/1000 [0117] a = rtpmap: 103 subtitle / 1000

[0118] a = lang:en//指示该字幕为英语 [0118] a = lang: en // indicates that the English subtitles

[0119] m = video 7734 RTP/AVP 104 [0119] m = video 7734 RTP / AVP 104

[0120] a = rtpmap:104 subtitle/1000 [0120] a = rtpmap: 104 subtitle / 1000

[0121] a = lang:fr//指示该字幕为法语 [0121] a = lang: fr // indicates that the French subtitles

[0122] 步骤2 :用户根据从EPG获得的节目信息获知当前节目所支持的语种后发起节目请求,可以使用默认语种或者指定其它语种,并且对伴音和字幕可以分别指定,这里假定用户选择伴音为英语,字幕为汉语,终端通过信令消息向AS申请获取节目,信令消息可以是SIP/RTSP等,消息的SDP描述部分如下: [0122] Step 2: User program information obtained from the EPG known initiated after the current program supported language program request, can use the default language, or specified other languages, and may specify audio and subtitles respectively, is assumed here that the user selects the sound of English, Chinese subtitles, terminal via a signaling message to the aS acquires a program application, the signaling message may be a part of the SDP description SIP / RTSP and the like, the following message:

[0123] m = video 8822 RTP/AVP 98 [0123] m = video 8822 RTP / AVP 98

[0124] a = rtpmap:98 H264/90000 [0124] a = rtpmap: 98 H264 / 90000

[0125] m = audio 7726 RTP/AVP 100 [0125] m = audio 7726 RTP / AVP 100

[0126] a = rtpmap:100 mpeg4-generic/44100/2 [0126] a = rtpmap: 100 mpeg4-generic / 44100/2

[0127] a = lang:en//指示伴音为英语 [0127] a = lang: en // audio instructions in English

[0128] m = video 7730 RTP/AVP 102 [0128] m = video 7730 RTP / AVP 102

[0129] a = rtpmap:102 subtitle/1000 [0129] a = rtpmap: 102 subtitle / 1000

[0130] a = lang:zh //指示该字幕为汉语,也可以不指定,则默认为汉语 [0130] a = lang: zh // indicates that the subtitles in Chinese, may not be specified, the default is the Chinese

[0131] 步骤3 :AS将用户指定的节目信息和伴音、字幕的语种信息通过信令消息指示给MF,信令可以是SIP、RTSP或者H248等; [0131] Step 3: AS program designated by the user and audio information, subtitle language information by indicating to MF signaling message, the signaling may be SIP, RTSP or H248 and the like;

[0132] 步骤4 :MF成功接收到AS发来的信令消息后,理解消息内容,并接受请求,返回AS2000K 消息; [0132] Step 4: After successfully received AS MF signaling messages sent, message content understood, and accept the request, returns AS2000K message;

[0133] 步骤5 :AS成功接收到MF发来的2000K消息后,给终端返回2000K消息; [0133] Step 5: AS MF successfully received the 2000K message sent, the terminal returns to 2000K message;

[0134] 步骤6 :MF从节目源获取节目流; [0134] Step 6: MF acquiring program from program source stream;

[0135] 步骤7 :MF对从节目源获得的多语种伴音和字幕的RTP流进行分析,只让用户选定的语种的伴音和字幕通过网络传输到接收端,即实际在网络上只是传输PT为98 (对应视频流)、100(对应英文伴音流)和102 (对应中文字幕流)的RTP包发送给终端。 [0135] Step 7: MF obtained from the program source for multilingual subtitles and audio RTP stream is analyzed so that only the user selected audio language and subtitles transmitted over the network to the receiving end, i.e. the actual transmission over the network only PT 98 (corresponding to a video stream), 100 (corresponding to the English audio stream) and 102 (corresponding to Chinese subtitle stream) RTP packets transmitted to the terminal.

[0136] 步骤8 :用户在收看节目的过程中可以通过接收端向MF发送SIP消息,要求改变伴音和字幕的语种(或者,SIP消息也可以发到AS,再由AS转发),假设用户要修改为汉语伴音,英语字幕,则消息的SDP描述可以如下: [0136] Step 8: The user may be sent in the process of watching a program by the receiving end to the MF SIP message requires a change audio and subtitle languages ​​(or, the SIP message may be sent to the AS, and then forwarded by the AS), assuming that the user to amended to Chinese audio, English subtitles, the SDP message may be described as follows:

[0137] a = audi0lang:zh//指示节目中的伴音用汉语 [0137] a = audi0lang: zh // indicating the audio program in Chinese

[0138] a = teXtlang:en//指示节目中的字幕用英语 [0138] a = teXtlang: en // indicate program English subtitles

[0139] 步骤9 :MF成功接收到用户终端发来的SIP消息后,理解消息内容,并接受请求,返回2000K消息; [0139] Step 9: After receiving the user terminal successfully MF sent from the SIP message, the message content is understood, and accept the request, returns the 2000K message;

[0140] 步骤10 :MF按照新的语种要求对伴音和字幕重新进行过滤,只将PT为98 (对应视频流)、99 (对应中文伴音流)和103 (对应英文字幕流)的RTP包发送给终端。 [0140] Step 10: MF according to the new language requirements for audio and subtitle re-filtering, only the PT 98 (corresponding to a video stream), 99 (corresponding to the Chinese audio stream) and 103 (corresponding to the English subtitle stream) RTP packet transmission to the terminal.

[0141] 在本实施例中,MF根据用户的选择,为用户提供原始节目流中已有的伴音和字幕; 同样,在本发明其他的实施例中,MF也可以根据用户的选择,为用户提供原始节目流中没有的、但MF实体可以通过翻译得出的伴音和字幕,从而既节省网络带宽资源,又能够为用户提供更为灵活的语种选择。 [0141] In the present embodiment, the MF according to the user's selection, to provide users with the original program stream audio and subtitle already; Similarly, in other embodiments of the present invention, the MF may be selected depending on the user, for the user It did not provide the original program stream, but MF entity can be derived by translating audio and subtitles, thus saving network bandwidth resources, but also to provide a more flexible choice of language for the user.

[0142] 除了多语种伴音和字幕以外,本发明实施例还可用于普通话和各种方言之间的转换、或者显示不同的字体效果和宽高比的字幕的情况。 [0142] A multi-language audio and subtitle outside, embodiments of the present invention may also be used to convert between Mandarin and dialects, or the case of displaying the subtitles and the effects of different fonts aspect ratio. 另外,上述三个实施例是以用MPEG-2TS或IMSA的方式传送节目数据为例进行说明,但本发明实施例不仅限于这两种传输方式。 Further, the above-described three embodiments is transmitted using MPEG-2TS IMSA manner or program data as an example, but the embodiments of the present invention is not limited to these two transmission modes.

[0143] 本发明实施例还提出一种提供多语种节目的系统,参见图12,图12为本发明实施例提供多语种节目的系统的结构示意图。 [0143] Example embodiments of the present invention also provides a system for multilingual program, see FIG. 12, FIG. 12 schematic structural diagram of embodiment of the invention the system to provide multilingual program. 该系统包括:[0144] 接收端1201,用于获取系统支持的语种信息,将用户从系统支持的语种信息中选定的语种信息发送至节目分发处理装置1202,并接收节目分发处理装置1202发送的过滤后的媒体流。 The system comprising: [0144] receiving end 1201, language support system for acquiring information, the user sends the selected language information from the language supported by the system information to the program distribution processing apparatus 1202, transmission and reception processing program distribution apparatus 1202 after filtration of the media stream.

[0145] 节目分发处理装置1202,用于根据从接收端1201收到的用户选定的语种信息过滤媒体流,将过滤后的媒体流发送至接收端1201。 [0145] the program distribution processing apparatus 1202, according to the user from the selected receiving terminal 1201 receives the language information filtering media stream, the media stream to the receiving side filter 1201.

[0146] 上述系统可以进一步包括: [0146] The system may further comprise:

[0147] EPG 1203,用于向所述接收端1201发送系统支持的语种信息。 [0147] EPG 1203, a multilingual information transmitted to the receiving end 1201 supported by the system.

[0148] 节目分发处理装置1202可以为MF实体。 [0148] processing program distribution device 1202 may be a MF entity.

[0149] 本发明实施例还提出一种提供多语种节目的装置,参见图13,图13为本发明实施例提供多语种节目的装置的结构示意图,该装置包括: [0149] Embodiments of the invention also provides an apparatus for providing multi-lingual programs, see FIG 13, FIG 13 is a schematic structural multilingual program of embodiments of the invention provide apparatus, the apparatus comprising:

[0150] 接收模块1310,用于接收用户选定的语种信息; [0150] a receiving module 1310 for receiving a user-selected language information;

[0151] 过滤模块1320,用于根据接收模块1301所接收到的用户选定的语种信息过滤媒体流; [0151] filter module 1320 for filtering media stream reception module 1301 according to the received language information selected by a user;

[0152] 发送模块1330,用于将过滤模块1320过滤后的媒体流发送至接收端。 [0152] sending module 1330, module 1320 for filtering media after the filtration stream to a receiving end.

[0153] 上述装置中,过滤模块1320可以包括: [0153] In the above apparatus, the filter module 1320 may comprise:

[0154] 原始媒体流获取子模块1321,用于从节目源获取原始媒体流; [0154] original media stream obtaining submodule 1321, configured to obtain media stream from the original program source;

[0155] 选择子模块1322,用于根据用户选定的语种信息,从原始媒体流中选出用户所选定的语种的数据包; [0155] selection sub-module 1322, according to user-selected language information selected by the user to select the language from the original media data packet stream;

[0156] 过滤媒体流生成子模块1323,用于采用选择子模块1322中选出的数据包生成过滤后的节目流。 [0156] Filter media stream generation sub-module 1323 for employing the program stream selection sub-module 1322 generates a selected packet filtering.

[0157] 上述过滤模块1320还可以包括: [0157] The filter module 1320 may further comprises:

[0158] 翻译子模块1324,用于根据用户选定的语种信息,获得系统翻译的语种的数据包; [0158] interpretation sub-module 1324, according to user-selected language information, the language translation system to obtain a data packet;

[0159] 所述过滤媒体流生成子模块1323,用于进一步采用翻译子模块1324中生成的数据包,生成过滤后的媒体流。 [0159] The filter media stream generation sub-module 1323, the data packets for further use in the interpretation sub-module 1324 generated, to generate a media stream after filtration.

[0160] 对于采用MPEG-2TS形式传输节目的情况,为使接收端能够识别并分解出包含视频、音频、字幕的传输包,需要修改TS流中的PMT,为此,上述过滤模块1320还可以进一步包括: [0160] For the case of MPEG-2TS transmitted in the form of a program, the reception terminal is able to identify a transport packet and an exploded comprising video, audio, subtitle, it is necessary to modify the PMT TS stream, for this purpose, the filter module 1320 may also further including:

[0161] 对应关系生成子模块1325,用于生成系统翻译的语种的数据包与该语种的对应关系; [0161] relationship between the production sub-module 1325, a correspondence relationship for language translation system to generate a data packet with the language;

[0162] 所述过滤媒体流生成子模块1323,用于进一步采用对应关系生成子模块1325所生成的所述对应关系,生成过滤后的媒体流。 [0162] The filter media stream generation sub-module 1323, for further use of the relationship between the production sub-module 1325 generates a correspondence relationship, generating a media stream after filtration.

[0163] 上述装置可以为MF实体。 [0163] The apparatus may be a MF entity.

[0164] 本发明实施例还提出一种媒体流接收端,用于向节目分处理装置发送用户选定的语种信息,接收节目分发处理装置所返回的过滤后的媒体流。 [0164] The present invention further provides a terminal receiving a media stream, for dividing the program processing apparatus transmits user-selected language information, the media stream after receiving the program distribution process filtration apparatus returned.

[0165] 综上可见,本发明实施例提出的提供多语种节目的方法、系统及装置,利用交互电视系统双向交互的特点,能够根据用户的选择修改节目流,只向接收端发送用户所选定的伴音和字幕信息,从而避免了网络带宽资源的浪费;并且,本发明还能够通过采用节目分发处理装置参与伴音及字幕的翻译,可以为用户提供原始节目中没有的语种的伴音和字幕,从而提供更为灵活的语种选择,提高了用户的使用体验。 [0165] In summary visible, multilingual program method, system and apparatus of the present invention proposed using two-way interactive features of interactive television systems, it is possible, selected by the user only transmits to the receiving end according to a selection of the user to modify the program stream given audio and subtitle information, thereby avoiding the waste of network bandwidth resources; and, the present invention is also capable of distributing the processing translation apparatus involved in audio and subtitles by using the program, may provide the original program is not the language of audio and subtitles to users, thereby providing a more flexible language selection, enhance the user experience.

[0166] 综上所述,以上仅为对本发明精神的展示,而非用于限制本发明的保护范围。 [0166] In summary, this is only to show the spirit of the present invention and is not intended to limit the scope of the present invention. 凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。 Any modification within the spirit and principle of the present invention, made, equivalent substitutions, improvements, etc., should be included within the scope of the present invention.

Claims (13)

  1. 一种提供多语种节目的方法,其特征在于,所述方法包括:节目分发处理装置获取以运动图像专家组-2传输流MPEG-2TS格式传输的原始媒体流,接收用户选定的语种信息,根据用户选定的语种信息查询所述原始媒体流中的节目关联表PAT和节目映射表PMT,得到用户选定的语种的数据包的包标识符PID值,从原始媒体流中选出所述PID值的数据包,生成过滤后的媒体流,将过滤后的媒体流发送至接收端;所述用户选定的语种信息为:用户从获取的系统支持的语种信息中选定的语种信息。 A method of providing multilingual program, characterized in that, said method comprising: distributing a program language processing apparatus acquires information of the original media stream 2 transmission format moving image stream transmitted Expert Group MPEG-2TS, the selected receiving user, the user-selected information query language associated with the program table in the original media stream program map table PAT and the PMT, the packet to give the packet a user-selected language identifier PID value, the original media stream is selected from the PID values ​​of the packet, generating the filtered media stream, the media stream to the receiving side filter; language selected by the user information: user-selected language information supported by the system from the acquired language information.
  2. 2.根据权利要求1所述的方法,其特征在于,所述接收端获取系统支持的语种信息的方式为:接收端从电子节目指南EPG获取系统支持的语种信息。 2. The method of embodiment according to claim 1, wherein, the receiving end acquires language information supported by the system to: receive an acquisition system supported language from the electronic program guide EPG information terminal.
  3. 3.根据权利要求1所述的方法,其特征在于,所述系统支持的语种信息包括:节目源提供的语种信息。 3. The method according to claim 1, wherein the language information supported by the system comprising: a program information provided by the source language.
  4. 4.根据权利要求3所述的方法,其特征在于,所述系统支持的语种信息进一步包括:系统能够翻译的语种信息。 4. The method according to claim 3, characterized in that the system further comprises a supported language information: Information language translation system capable.
  5. 5.根据权利要求4所述的方法,其特征在于,所述用户选定的语种信息包括:用户从节目源提供的语种中选定的语种信息、和/或用户从系统能够翻译的语种中选定的语种信息;所述节目分发处理装置根据收到的用户选定的语种信息过滤媒体流的步骤包括:节目分发处理装置从节目源获取原始媒体流,根据用户选定的语种信息从原始媒体流中选出用户所选定的语种的数据包、和/或根据用户选定的语种信息由系统翻译生成的语种的数据包,生成过滤后的媒体流。 5. The method as claimed in claim 4, wherein said user-selected language information comprising: a program language selected by a user from the source language to provide information and / or language translation from a user to the system the selected language information; and said step of processing a program distribution device according to a user selected language filtering the received media stream comprises: processing means acquires the program distribution media stream from the original source program, the user selected information from the original language selected media stream the user selected language data packets, and / or according to user-selected language information generated by the system language translation data packet, generates the filtered media stream.
  6. 6.根据权利要求5所述的方法,其特征在于,当所述过滤后的媒体流中包含系统翻译的语种的数据包时,过滤后的媒体流还包括:系统翻译生成的语种的数据包与该语种的对应关系。 6. The method according to claim 5, wherein, when the media streams included in the filter system of the language translation data packet, the filtered media stream further comprises: generating a language translation system packet correspondence relation to the language.
  7. 7. 一种提供多语种节目的系统,其特征在于,所述系统包括:接收端,用于获取系统支持的语种信息,将用户从系统支持的语种信息中选定的语种信息发送至节目分发处理装置,并接收节目分发处理装置发送的过滤后的媒体流。 A multilingual program system, characterized in that, the system comprising: a receiving terminal, for acquiring language information supported by the system, the user sends the selected language information from the language supported by the system information to the program distribution processing apparatus, and receiving a program distribution media stream transmitted from the filtration process. 节目分发处理装置,用于获取以运动图像专家组_2传输流MPEG-2TS格式传输的原始媒体流,根据从接收端收到的用户选定的语种信息查询原始媒体流中的节目关联表PAT和节目映射表PMT,得到用户选定的语种的数据包的包标识符PID值,从原始媒体流中选出所述PID值的数据包,生成过滤后的媒体流,将过滤后的媒体流发送至接收端。 Program distribution processing means for acquiring a moving image _2 transmission of the transmission format of MPEG-2TS stream LEG original media stream, a program association table PAT query original media stream received from the user according to the selected language information receiving end a program map table and the PMT, the packet to give the packet a user-selected language identifier PID value, a PID value of the selected data packet from the original media stream, the media stream generating filtered, the filtered media stream sending to the receiving end.
  8. 8.根据权利要求7所述的系统,其特征在于,所述系统进一步包括:EPG,用于向所述接收端发送系统支持的语种信息。 8. The system according to claim 7, characterized in that the system further comprises: EPG, for receiving language information transmitted to the support system.
  9. 9.根据权利要求7所述的系统,其特征在于,所述节目分发处理装置为:媒体功能实体。 9. The system according to claim 7, wherein said program distribution processing means is: the media function entity.
  10. 10. 一种提供多语种节目的装置,其特征在于,所述装置包括:接收模块,用于接收用户选定的语种信息;过滤模块,包括原始媒体流获取子模块、选择子模块和过滤媒体流生成子模块;其中,所述原始媒体流获取子模块,用于从节目源获取以运动图像专家组-2传输流MPEG-2TS格式传输的原始媒体流;选择子模块,用于根据用户选定的语种信息查询所述原始媒体流中的节目关联表PAT和节目映射表PMT,得到用户选定的语种的数据包的包标识符PID值,从原始媒体流中选出所述PID值的数据包;过滤媒体流生成子模块,用于采用选择子模块中选出的数据包生成过滤后的媒体流; 发送模块,用于将过滤模块过滤后的媒体流发送至接收端。 10. An apparatus for providing multi-lingual programs, characterized in that said apparatus comprises: receiving means for receiving a user-selected language information; filtering module, the original media stream comprising obtaining sub-module, and the filter media selection sub-module stream generation sub-module; wherein the original media stream obtaining sub-module, configured to obtain a moving image transmission 2 transmission stream MPEG-2TS format LEG program source from the original media stream; selection sub-module, according to a user selected from given query language information of the original media stream a program association table PAT and the PMT program map table, packet data packet to obtain a user-selected language identifier PID value of the selected PID value from the original media stream packet; filtering media stream generating sub-module, for employing the selection sub-module selected media stream packet generating filter; sending module, configured to filter the media stream to the filter module receiving end.
  11. 11.根据权利要求10所述的装置,其特征在于,所述过滤模块进一步包括: 翻译子模块,用于根据用户选定的语种信息,获得系统翻译的语种的数据包;所述过滤媒体流生成子模块,用于进一步采用翻译子模块中生成的数据包,生成过滤后的媒体流。 11. The apparatus according to claim 10, wherein the filtering module further comprises: interpretation sub-module, according to user-selected language information, the language translation system to obtain a data packet; said filter media stream generating sub-module, for further use in the interpretation sub-module packet generated after the generation of the filter media stream.
  12. 12.根据权利要求11所述的装置,其特征在于,所述过滤模块进一步包括:对应关系生成子模块,用于生成系统翻译的语种的数据包与该语种的对应关系; 所述过滤媒体流生成子模块,用于进一步采用对应关系生成子模块所生成的所述对应关系,生成过滤后的媒体流。 12. The apparatus as claimed in claim 11, wherein the filtering module further comprises: a correspondence relationship generation sub-module, for generating a corresponding relationship between the language translation system to the language of the data packet; said filter media stream generating sub-module, for further use of the correspondence generating submodule generated correspondence relationship, generating a media stream after filtration.
  13. 13.根据权利要求10所述的装置,其特征在于,所述装置为媒体功能实体。 13. The apparatus according to claim 10, wherein the device is a media function entity.
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