CN102186105B - Digital television program playing system, method and digital television receiving terminal - Google Patents

Digital television program playing system, method and digital television receiving terminal Download PDF

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CN102186105B
CN102186105B CN 201110099751 CN201110099751A CN102186105B CN 102186105 B CN102186105 B CN 102186105B CN 201110099751 CN201110099751 CN 201110099751 CN 201110099751 A CN201110099751 A CN 201110099751A CN 102186105 B CN102186105 B CN 102186105B
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vod
service
information
list
program
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CN102186105A (en )
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张神力
周奇
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深圳创维数字技术股份有限公司
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Abstract

本发明公开的数字电视节目的播放系统包括服务器以及至少一个数字电视接收终端,所述服务器预先设置VOD协议规范,并按照VOD协议规范将VOD业务列表及其附属信息通过广播的方式发送至所述数字电视接收终端;所述数字电视接收终端预先设置VOD协议规范,并按照VOD协议规范将所述服务器发送的VOD业务列表及其附属信息存储至点播节目数据库;所述数字电视接收终端还根据用户输入的匹配标识在所述点播节目数据库中匹配相关的节目并显示给用户,以及接收用户的节目点播请求,根据所述节目点播请求从所述服务器获取电视节目播放给用户。 The present invention discloses a digital TV broadcasting system comprising a server and at least one digital television receiving terminal, the VOD server protocol specification is set in advance, and the VOD service list and subsidiary information to the broadcast in the VOD protocol specification by way of the digital television receiving terminal; said preset digital television receiving terminal VOD protocol specification and the protocol specifications in the VOD service list sent by the server and VOD subsidiary information database stored in on-demand program; the digital television receiving terminal according to a user further input matching demand program identified in the database for a match, and the program related to the user, and receives the user's program on-demand request, requesting the user to acquire TV program broadcast from the server according to the program on demand. 本发明主动对机顶盒下发点播节目列表及附属信息,提高了点播节目列表的获取速度。 The present invention is made active for the set-top box-demand program listings and the auxiliary information, to improve the acquisition speed demand program list.

Description

数字电视节目的播放系统、方法及数字电视接收终端 Digital TV broadcast systems, methods, and digital television reception terminal

技术领域 FIELD

[0001] 本发明属于数字电视技术领域,尤其涉及数字电视节目的播放系统、方法及数字电视接收终端。 [0001] The present invention belongs to the technical field of digital television, in particular, it relates to a digital television program broadcasting system, method and digital television receiving terminal.

背景技术 Background technique

[0002] 随着三网融合的推进,机顶盒的双向化已经成为一种趋势,基于双向网改造的视频点播(VOD)业务也越来越受到人们的推崇,各种各样的浏览器以及视频点播的实现方法应运而生。 [0002] With the triple play, the two-way set-top box has become a trend, based on two-way network transformation of video on demand (VOD) services are increasingly respected by the people, a variety of browsers and video implementation of demand emerged.

[0003] 现有技术下,双向机顶盒实现VOD业务需要集成浏览器;并且,不同的VOD的实现方法需要集成不同的浏览器。 The [0003] prior art, a two-way set-top box needs integrated browser VOD service; and, implementation of the different VOD need to integrate different browsers.

[0004] 现有的VOD的实现方法,机顶盒获取点播节目列表需要向前端服务器发送获取点播节目列表请求,前端鉴权成功后下发点播节目列表,并发数太多时,可能引起网络拥塞,而且网络延迟可能使得获取点播节目列表速度太慢,大大影响用户体验。 Implementation [0004] The conventional VOD set top boxes obtain on-demand program listing acquires front-end server needs to send a request for on-demand program listing, on-demand program listing issued after the front end of the authentication succeeds, when the number of concurrent too, may lead to network congestion, and the network delay may make the list too slow to obtain on-demand programming, which greatly affect the user experience.

[0005] 现有技术下,下发的点播节目列表通过浏览器在机顶盒端显示,提供的点播节目数量有限,并且没有查找功能。 [0005] Under the prior art, on-demand program list issued by the browser STB-side display, it provides a limited number of programs on demand, and there is no search function.

[0006] 而且,现有技术还存在以下缺点: [0006] Further, the prior art also has the following disadvantages:

[0007] (I)、获取点播节目列表的速度慢,且有可能引起网络拥塞,大大影响用户体验。 [0007] (I), to obtain a list of slow demand programming, and may cause network congestion, greatly affect the user experience.

[0008] (2)、被动下发点播节目列表。 [0008] (2), issued passive-demand program listing.

[0009] (3)、点播节目列表下发时,没有和点播节目相关的精彩音视频片段,不容易吸引用户收看点播节目。 [0009] (3), when the demand program listing issued, and no great demand programming associated audio and video clips, is not easy to attract users to watch the program on demand.

[0010] (4)、需要集成浏览器,给软件的集成带来了复杂性,且不同的浏览器对不同VOD很难做到兼容,给集成带来了风险。 [0010] (4), requires an integrated browser, to integrate software brings complexity, and different browsers difficult to achieve compatibility with different VOD, to integration risks.

[0011] ( 5 )、提供的点播节目数量有限,且没有查找功能。 [0011] (5), offer a limited number of on-demand programming, and there is no search function.

[0012] 综上所述,如何主动的对机顶盒下发点播节目列表,提高点播节目列表的获取速度,提升用户体验,是数字电视技术领域研究的方向之一。 [0012] In summary, how to take the initiative to send on-demand set-top boxes under the list of programs to improve acquisition speed on-demand program listings, enhance the user experience, is one of the technology in the field of digital television direction.

发明内容 SUMMARY

[0013] 本发明实施例的目的在于提供一种数字电视节目的播放系统、方法及数字电视接收终端,旨在主动的对机顶盒下发点播节目列表,提高点播节目列表的获取速度,提升用户体验。 [0013] The object of embodiments of the present invention to provide a digital television program broadcasting system, method and digital television receiving terminal, intended to send active set-top boxes under demand program listings, on-demand program list acquisition speed, and enhance the user experience .

[0014] 本发明实施例是这样实现的,一种数字电视节目的播放系统,所述系统包括服务器以及至少一个数字电视接收终端; [0014] Example embodiments of the present invention is implemented as a digital television program broadcasting system, the system comprising a server and at least one digital television receiving terminal;

[0015] 其中,所述服务器,预先设置VOD协议规范,并按照VOD协议规范将VOD业务列表及其附属信息通过广播的方式发送至所述数字电视接收终端; [0015] wherein the server previously set protocol specification VOD, VOD service list specification and its subsidiary information to the digital television receiving terminal in a broadcast manner as VOD protocol;

[0016] 所述数字电视接收终端,预先设置VOD协议规范,并按照VOD协议规范将所述服务器发送的VOD业务列表及其附属信息存储至点播节目数据库,在所述VOD协议规范下,在所述服务器和所述数字电视接收终端之间传输的数据流的数据结构包括链接描述符、VOD业务列表段、VOD业务信息段、价格参考描述符、图片数据段以及音视频片段插入信息; [0016] The digital television receiving terminal, VOD protocol specification is set in advance, and in accordance with the protocol specification VOD service list transmitted by the VOD server and the attached information stored in the database on-demand program at the VOD protocol specification, in the data structure of the data stream transmitted between said server and the digital television receiving terminal includes a linkage descriptor, VOD service list section, VOD service information segment, the price of the reference descriptor, audio and video image data segments, and clip insertion information;

[0017] 所述数字电视接收终端,还根据用户输入的匹配标识在所述点播节目数据库中匹配相关的节目并显示给用户,以及,接收用户的节目点播请求,根据所述节目点播请求从所述服务器获取电视节目播放给用户。 [0017] The digital television receiving terminal, according to the matching identification match further user input in the database relating to on-demand program displayed to the user program, and a program receives the user's on-demand request, according to the request from the programming on demand said server acquiring television program broadcast to the user.

[0018] 根据本发明一优选实施例,所述数字电视接收终端根据用户的匹配标识在所述点播节目数据库中匹配相关的节目并显示给用户时,包括将所述VOD业务列表及其附属信息显示给用户,由用户根据所述VOD业务列表及其附属信息选择节目;以及[0019] 直接接收用户输入的匹配标识在所述点播节目数据库中匹配相关的节目。 [0018] According to a preferred embodiment of the present invention, the digital television receiving terminal to match the associated program database according to user demand program identifier matches to the user and displayed, the VOD service list including information about its subsidiaries displayed to the user, by the user according to the VOD service list and selects a program appended information; identifying matching program related to the database and the matching demand program [0019] directly receives user input.

[0020] 根据本发明一优选实施例,所述数字电视接收终端从数据流中获取VOD业务列表及其附属信息时,包括: When [0020] According to a preferred embodiment of the present invention, the digital television receiving terminal acquires its subsidiary VOD service list information from the data stream, comprising:

[0021] 解析并接收VOD业务列表段,获取VOD业务列表以及所述服务器的地址信息; [0021] VOD service list received and parsed segment to acquire a list of VOD service and the server address information;

[0022] 解析并接收VOD业务信息段,获取VOD业务的相关信息; [0022] VOD service information is parsed and receiving section, obtain information VOD service;

[0023] 解析并接收价格参考描述符,获取业务付费方式、价格相关信息; [0023] Rate and receiving parsed descriptors, obtaining payment service, price-related information;

[0024] 解析并接收图片数据段,获取相应的图片数据; [0024] Analytical data reception section and acquires the corresponding image data;

[0025] 解析并接收音视频片段插入信息,存储VOD业务信息段中音视频片段插入信息所关联的音视频片段业务。 [0025] Analytical and receiving audio and video clips insertion information, VOD service information storing section inserted into the video and audio clips associated with the audio and video clip of traffic information.

[0026] 根据本发明一优选实施例,所述数字电视接收终端,还用于从数据流中获取VOD业务列表版本号,将获取的VOD业务列表版本号与存储于所述点播节目数据库中的VOD业务列表版本号进行对比,若不一致,则对所述VOD业务列表进行更新。 [0026] embodiment, the digital television receiving terminal according to a preferred embodiment of the present invention, further configured to obtain a list of VOD service version number from the data stream, VOD service list stored in the acquired version number in the database and on-demand program VOD service list version numbers are compared, and if not, the VOD service list is updated.

[0027] 本发明实施例的还一目的在于提供一种数字电视节目的播放方法,所述方法包括: [0027] A further object of embodiments of the present invention to provide a digital television broadcast program, the method comprising:

[0028] 提供服务器以及至少一个数字电视接收终端; [0028] providing server and at least one digital television receiving terminal;

[0029] 所述服务器,预先设置VOD协议规范,并按照VOD协议规范将VOD业务列表及其附属信息通过广播的方式发送至所述数字电视接收终端,在所述VOD协议规范下,在所述服务器和所述数字电视接收终端之间传输的数据流的数据结构包括链接描述符、VOD业务列表段、VOD业务信息段、价格参考描述符、图片数据段以及音视频片段插入信息; [0029] The server VOD protocol specification is set in advance, and the VOD service list and its subsidiary information transmitted by way of broadcast to the digital television receiving terminal in accordance with the protocol specification VOD, VOD protocol in the specification, the data structure of the data stream transmitted between the server and the digital television receiving terminal includes a linkage descriptor, VOD service list section, VOD service information segment, the price of the reference descriptor, audio and video image data segments, and clip insertion information;

[0030] 所述数字电视接收终端,预先设置VOD协议规范,并按照VOD协议规范将所述服务器发送的VOD业务列表及其附属信息存储至点播节目数据库; [0030] The digital television receiving terminal, VOD protocol specification is set in advance, and the VOD service list transmitted in the VOD server protocol specification and its appended information stored in the database on-demand program;

[0031] 所述数字电视接收终端,根据用户输入的匹配标识在所述点播节目数据库中匹配相关的节目并显示给用户; [0031] The digital television receiving terminal, a program matching the associated demand program match the user input database according to the user's identity and;

[0032] 所述数字电视接收终端,接收用户的节目点播请求,根据所述节目点播请求从所述服务器获取电视节目播放给用户。 [0032] The digital television receiving terminal, the requesting user receives the program on demand, and requests the user to acquire TV program broadcast from the server according to the program on demand.

[0033] 根据本发明一优选实施例,所述数字电视接收终端根据用户的匹配标识在所述点播节目数据库中匹配相关的节目并显示给用户时,包括: When [0033] According to a preferred embodiment of the present invention, the digital television receiving terminal associated program identifier matching the demand program database and displayed to users based on the matching, comprising:

[0034] 将所述VOD业务列表及其附属信息显示给用户,由用户根据所述VOD业务列表及其附属信息选择节目;以及 [0034] VOD service list and the subsidiary information displayed to the user, by the user according to the service list and its subsidiary VOD program selection information; and

[0035] 直接接收用户输入的匹配标识在所述点播节目数据库中匹配相关的节目。 [0035] Direct receiving user input associated matching program identification match the demand program database.

[0036] 根据本发明一优选实施例,所述数字电视接收终端从数据流中获取VOD业务列表及其附属信息时,包括以下步骤: When [0036] According to a preferred embodiment of the present invention, the digital television receiving terminal acquires its subsidiary VOD service list information from the data stream, comprising the steps of:

[0037] 解析并接收VOD业务列表段,获取VOD业务列表以及所述服务器的地址信息; [0037] VOD service list received and parsed segment to acquire a list of VOD service and the server address information;

[0038] 解析并接收VOD业务信息段,获取VOD业务的相关信息; [0038] VOD service information is parsed and receiving section, obtain information VOD service;

[0039] 解析并接收价格参考描述符,获取业务付费方式、价格相关信息; [0039] Rate and receiving parsed descriptors, obtaining payment service, price-related information;

[0040] 解析并接收图片数据段,获取相应的图片数据; [0040] Analytical data reception section and acquires the corresponding image data;

[0041] 解析并接收音视频片段插入信息,存储VOD业务信息段中音视频片段插入信息所关联的音视频片段业务。 [0041] Analytical and receiving audio and video clips insertion information, VOD service information storing section inserted into the video and audio clips associated with the audio and video clip of traffic information.

[0042] 根据本发明一优选实施例,所述方法还包括以下步骤: [0042] According to a preferred embodiment of the present invention, the method further comprising the steps of:

[0043] 所述数字电视接收终端,从数据流中获取VOD业务列表版本号,将获取的VOD业务列表版本号与存储于所述点播节目数据库中的VOD业务列表版本号进行对比,若不一致,则对所述VOD业务列表进行更新。 [0043] The digital television receiving terminal, VOD service list version number acquired from the data stream, VOD service list acquired version number stored in the on-demand program in a VOD service list database version numbers are compared, if not, then the VOD service list is updated.

[0044] 本发明实施例的还一目的在于提供一种数字电视接收终端,所述数字电视接收终端包括: [0044] A further object of embodiments of the present invention to provide a digital television receiving terminal, the digital television receiving terminal comprising:

[0045] 存储模块,用于预先存储VOD协议规范,并按照VOD协议规范将所述服务器发送的VOD业务列表及其附属信息存储至点播节目数据库,在所述VOD协议规范下,在所述服务器和所述数字电视接收终端之间传输的数据流的数据结构包括链接描述符、VOD业务列表段、VOD业务信息段、价格参考描述符、图片数据段以及音视频片段插入信息; [0045] The storage module for storing in advance VOD protocol specification and the protocol specifications in the VOD service list sent by the server and VOD subsidiary information stored in the database on-demand program at the VOD protocol specification, the server and the data structure of the digital data stream transmitted between the television receiving terminals comprise a linkage descriptor, VOD service list section, VOD service information segment, the price of the reference descriptor, audio and video image data segments, and clip insertion information;

[0046] 显示模块,用于根据用户输入的匹配标识在所述点播节目数据库中匹配相关的节目并显示给用户; [0046] The display module configured to match the relevant on-demand program in a program database according to user input matches the identifier and displayed to the user;

[0047] 播放模块,用于接收用户的节目点播请求,根据所述节目点播请求从所述服务器获取电视节目播放给用户。 [0047] a playing module, for receiving a user's request for on-demand programming, request acquiring television programs broadcast from the server to the user according to the program on demand.

[0048] 根据本发明一优选实施例,所述数字电视接收终端还包括: [0048] According to a preferred embodiment of the present invention, the digital television receiving terminal further comprises:

[0049] 匹配模块,用于接收用户输入的匹配标识在所述点播节目数据库中匹配相关的节目。 [0049] The matching module, for receiving user input matches a program identifier associated matching demand program in the database.

[0050] 根据本发明一优选实施例,所述数字电视接收终端,还包括: [0050] embodiment, the digital television receiving terminal according to a preferred embodiment of the present invention, further comprising:

[0051] 获取模块,用于解析并接收VOD业务列表段,获取VOD业务列表以及所述服务器的地址信息;解析并接收VOD业务信息段,获取VOD业务的相关信息;解析并接收价格参考描述符,获取业务付费方式、价格相关信息;解析并接收图片数据段,获取相应的图片数据;解析并接收音视频片段插入信息,存储VOD业务信息段中音视频片段插入信息所关联的音视频片段业务。 [0051] obtaining module, configured to parse and receiving section VOD service list, acquiring the list of VOD service server address information; and parses the received information segment VOD service, VOD service to obtain information; receiving and parsing descriptor Rate to obtain a service payment method, price-related information; receiving and parsing image data segment corresponding to picture data acquired; parse and receiving audio and video clips inserted fragment associated audio and video information, storing the video and audio segments VOD service information service information fragment was inserted .

[0052] 根据本发明一优选实施例,所述数字电视接收终端,还包括: [0052] embodiment, the digital television receiving terminal according to a preferred embodiment of the present invention, further comprising:

[0053] 对比模块,用于从数据流中获取VOD业务列表版本号,将获取的VOD业务列表版本号与存储于所述点播节目数据库中的VOD业务列表版本号进行对比;若不一致,则控制所述获取模块对所述VOD业务列表进行更新。 [0053] The comparing module, configured to obtain a list of VOD service version number from the data stream, VOD service list stored in the acquired version number in the on-demand program in a VOD service list database version number comparison; if not, then control the acquisition module the VOD service list is updated.

[0054] 通过上述实施例,本发明能够主动的对机顶盒下发点播节目列表,提高了点播节目列表的获取速度,提升了用户体验,有利于机顶盒等数字电视接收终端的推广普及。 [0054] By the above-described embodiments, the present invention can be actively sent to the set top box demand program listings, on-demand program to improve the speed of acquisition of the list, to enhance the user experience, help popularize digital television receiving terminal of set-top boxes.

附图说明 BRIEF DESCRIPTION

[0055] 图I是本发明实施例提供的数字电视节目的播放系统的结构图;[0056] 图2是本发明实施例提供的VOD协议规范中table_id和其所标识的段的对应关系图; [0055] Figure I is a configuration diagram provided in a digital television program broadcasting system of the embodiment of the present invention; [0056] FIG. 2 is a correspondence relationship of FIG VOD protocol according to an embodiment of the present invention, the specification section table_id and it identifies;

[0057] 图3是本发明实施例提供的VOD协议规范中链接描述符section_type、stream_type的对应关系以及其标识的数据类型图; [0057] FIG. 3 is a VOD protocol according to an embodiment of the present invention, the linkage descriptor specification section_type, correspondence relationship stream_type data type and its identifier;

[0058] 图4是本发明实施例提供的VOD协议规范中VOD业务列表段vod_service_type不同的取值和VOD业务类型的对应关系图; [0058] FIG. 4 is a VOD protocol provided by the VOD service list section vod_service_type different values ​​and the VOD service type correspondence relationship specification FIG embodiment of the present invention;

[0059] 图5是本发明实施例提供的VOD协议规范中VOD业务信息段vod_service_info_ type数值和类型的对应关系图; [0059] FIG. 5 is a VOD protocol specification provided by the VOD service information field vod_service_info_ type values ​​and the corresponding relationship types embodiment of the present invention, FIG;

[0060] 图6是本发明实施例提供的VOD协议规范中VOD业务信息段picture_format值和图片格式的对应关系图; [0060] FIG. 6 is a VOD protocol provided by the VOD service information field and the map of FIG picture_format value image format standardized embodiment of the present invention;

[0061]图7是本发明实施例提供的VOD协议规范中价格参考描述符payjnode值和付费方式的对应关系图; [0061] FIG. 7 is a VOD protocol according to an embodiment of the present invention, reference descriptor specification payjnode price value and a corresponding graph of payment;

[0062] 图8是本发明实施例提供的VOD协议规范下数据结构的逻辑关系和组织形式的结构图; [0062] FIG. 8 is a configuration diagram VOD protocol according to an embodiment of the present invention, the logic specification and the organization of the data structure;

[0063] 图9是本发明实施例提供的机顶盒的一实施例结构图; [0063] FIG. 9 is a configuration diagram of an embodiment of the set top box according to an embodiment of the present invention;

[0064] 图10是本发明实施例提供的机顶盒解析VOD业务列表及其附属信息的流程图; [0064] FIG. 10 is a set-top box according to an embodiment of the present invention resolve the VOD service list information and the subsidiary flow chart;

[0065] 图11是本发明实施例提供的机顶盒端更新VOD业务列表及其附属信息的流程图; [0065] FIG. 11 is a set-top box according to an embodiment of the present invention end its service list update flowchart VOD subsidiary information;

[0066] 图12是本发明实施例提供的视频点播的流程图; [0066] FIG. 12 is a flowchart of embodiments of the VOD provided by the present invention;

[0067] 图13是本发明实施例提供的点播界面图; [0067] FIG. 13 is a view of the present invention provides the playback interface of the embodiment;

[0068] 图14是本发明实施例提供的点播节目搜索界面图; [0068] FIG. 14 is a search interface according to the present invention, on-demand program provided in the embodiment of FIG;

[0069] 图15是本发明实施例提供的数字电视节目的播放方法的流程图; [0069] FIG. 15 is a flowchart of the method for playing digital television programs provided in the embodiment of the present invention;

[0070] 图16是本发明实施例提供的数字电视接收终端的结构图。 [0070] FIG. 16 is a configuration diagram of a digital television receiving terminal provides the embodiment of the present invention.

具体实施方式 detailed description

[0071] 为了使本发明的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对本发明进行进一步详细说明。 [0071] To make the objectives, technical solutions and advantages of the present invention will become more apparent hereinafter in conjunction with the accompanying drawings and embodiments of 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 only intended to illustrate the present invention and are not intended to limit the present invention.

[0072] 图I示出了本发明实施例提供的数字电视节目的播放系统的结构,所述系统包括服务器11以及至少一个数字电视接收终端12。 [0072] FIG I shows the structure of the playback system of the present invention provides a digital television program embodiment, the system includes a server 11 and at least one digital television receiving terminal 12.

[0073] 其中,所述服务器11预先设置VOD协议规范,并按照VOD协议规范将VOD业务列表及其附属信息通过广播的方式发送至所述数字电视接收终端12 ; [0073] wherein the VOD server 11 previously set protocol specification, and the VOD service list and subsidiary information to the broadcast in the VOD protocol specification by way of the digital television receiving terminal 12;

[0074] 所述数字电视接收终端12预先设置VOD协议规范,并按照发明自定义的VOD协议规范将所述服务器11发送的VOD业务列表及其附属信息存储至点播节目数据库; [0074] The digital television receiving terminal 12 is set in advance VOD protocol specification, and in accordance with the invention the service list sent from the VOD server 11 and the auxiliary information stored in the database on-demand program from the VOD protocol specification defined above;

[0075] 所述数字电视接收终端12还根据用户输入的匹配标识在所述点播节目数据库中匹配相关的节目并显示给用户,以及,接收用户的节目点播请求,根据所述节目点播请求从所述服务器11获取电视节目播放给用户。 [0075] The digital television receiving terminal 12 according to a matching identification match further user input in the database relating to on-demand program displayed to the user program, and a program receives the user's on-demand request, according to the request from the programming on demand 11 said server acquiring television program broadcast to the user.

[0076] 其中,所述数字电视接收终端12根据用户的匹配标识在所述点播节目数据库中匹配相关的节目并显示给用户时,包括将所述VOD业务列表及其附属信息显示给用户,由用户根据所述VOD业务列表及其附属信息选择节目;直接接收用户输入的匹配标识在所述点播节目数据库中匹配相关的节目。 [0076] wherein said digital television receiver of the user terminal 12 matches the matches identified in the database on-demand program displayed in the program related to the user, comprising the VOD service displays a list of the auxiliary information to the user and by the user selects a program to the VOD service list and auxiliary information; receiving direct user input matches a program identifier associated matching demand program in the database.

[0077] 其中,在所述VOD协议规范下,在所述服务器和所述数字电视接收终端之间传输的数据流的数据结构包括链接描述符、VOD业务列表段、VOD业务信息段、价格参考描述符、图片数据段以及音视频片段插入信息,具体描述请参阅下文,此处暂不赘述。 [0077] wherein, in the VOD protocol specification, between the server and the digital television receiving terminal data structure of the data stream transmission includes a linkage descriptor, VOD service list segment, segment VOD service information, price reference descriptor, audio and video image data segments, and clip insertion information, see the detailed description below, it will not be repeated here.

[0078] 在具体实施过程中,所述数字电视接收终端从数据流中获取VOD业务列表及其附属信息时,包括:解析并接收VOD业务列表段,获取VOD业务列表以及所述服务器的地址信息;解析并接收VOD业务信息段,获取VOD业务的相关信息;解析并接收价格参考描述符,获取业务付费方式、价格相关信息;解析并接收图片数据段,获取相应的图片数据;解析并接收音视频片段插入信息,存储VOD业务信息段中音视频片段插入信息所关联的音视频片段业务,具体描述请参阅下文,此处暂不赘述。 When [0078], the digital television receiving terminal acquires its subsidiary VOD service list information from the data stream in the specific implementation process, comprising: receiving and parsing section VOD service list, obtains the address of the VOD server in a service list, and ; parse and receives VOD service information section for information VOD service; parse and receiving price reference descriptor, obtain the service payment method, price-related information; parse and reception data segment, to obtain the corresponding picture data; parse and receiving audio fragment was inserted video information, storing the video and audio segments VOD service information fragment was inserted into audio and video segment associated with service information, see the detailed description below, they will not be repeated here.

[0079] 在具体实施过程中,所述数字电视接收终端还用于从数据流中获取VOD业务列表版本号,将获取的VOD业务列表版本号与存储于所述点播节目数据库中的VOD业务列表版本号进行对比,若不一致,则对所述VOD业务列表进行更新。 [0079] In a specific implementation, the digital television receiving terminal is further configured to obtain a list of VOD service version number from the data stream, the VOD service list VOD service list acquired version number stored in the on-demand program database comparing the version number, and if not, the VOD service list is updated.

[0080] 为了规范在传输流(TS)中下发的VOD业务列表及其附属信息的数据结构、逻辑关系和组织形式。 [0080] In order to regulate the delivered in a transport stream (TS) in the VOD service list data structure information and its subsidiary, logic and organization. 本发明实施例定义了VOD协议规范的数据结构,包括:链接类型(linkage_type)为OxFE 的链接描述符(linkage—descriptor O )、VOD 业务列表段(vod—service—list—section () )、VOD 业务信息段(vod—service—info—section 0 )、价格参考描述符(price—reference—descriptor ())、图片数据段(picture—data—section ())以及音视频片段插入信息(av—segment—insert—info ()),且本发明实施例以数字电视接收终端为机顶盒为例进行说明。 Example defines a data structure VOD protocol specification of the present invention, comprising: link types (linkage_type) is OxFE link descriptor (linkage-descriptor O), VOD service list section (vod-service-list-section ()), VOD traffic information pieces (vod-service-info-section 0), the price reference descriptor (price-reference-descriptor ()), the picture data segment (picture-data-section ()) as well as audio and video clip insertion information (av-segment Example -insert-info ()), and the present invention is a digital television set top box receiving terminal will be described as an example.

[0081 ] 其中,所述的链接类型(I inkage—type )为OxFE的链接描述符(I inkage—descriptor O )链接向一个VOD业务列表业务;其中,所述的链接描述符中的传输流标识符(transport—stream—id)、原始网络标识符(original—network—id)和业务标识符(service—id)在网络内可以唯一标识一个业务,该业务是VOD业务列表业务;其中,所述的链接描述符通过传输流标识符(transport—stream—id)、原始网络标识符(original—network—id)和业务标识符(service—id)链接向该VOD业务列表业务。 [0081] wherein, said link types (I inkage-type) for the link descriptor (I inkage-descriptor O) OxFE link to a service list of VOD service; wherein the link descriptor transport stream identifier character (transport-stream-id), the original network identifier (original-network-id) and service identifier (service-id) in the network may uniquely identify a service, the service is a VOD service list service; wherein said the link descriptor identifier through a transport stream (transport-stream-id), the original network identifier (original-network-id) and service identifier (service-id) VOD service list to the service links.

[0082] 其中,所述的链接描述符(linkage—descriptor O )还用于给出VOD业务列表的总体信息,包括:V0D业务列表版本号(vod—list—version—number)、强制标志(force—flag)、VOD 业务列表段表标识符(vod—service—list—section—table—id)、段类型I(section—type—I)、VOD 业务信息段起始表标识符(vod—service—info—section—start—table—id)、VOD 业务信息段结束表标识符(vod—service—info—section—end—table—id)、段类型2 (section—type—2)、图片数据段起始表标识符(picture—data—section—start—table—id)、图片数据段结束表标识符(picture—data—section—end—table—id)、段类型3(section—type—3)、VOD 业务列表数(vod—service—list—number)、VOD 业务列表标识符(vod—service_list_id)、子片反本号(sub_version—number)。 [0082] wherein the linkage descriptor (linkage-descriptor O) is also used to give a general VOD service list information, comprising: V0D service list version number (vod-list-version-number), the force flag (Force -flag), VOD service list segment table identifier (vod-service-list-section-table-id), segment type I (section-type-I), VOD service start information segment table identifier (vod-service- info-section-start-table-id), VOD service information table identifier end segment (vod-service-info-section-end-table-id), segment type 2 (section-type-2), picture data segments from beginning table identifier (picture-data-section-start-table-id), the end of the segment table identifier picture data (picture-data-section-end-table-id), segment type 3 (section-type-3), VOD service list number (vod-service-list-number), VOD service list identifier (vod-service_list_id), the sub-sheet Fanben number (sub_version-number).

[0083] 其中,所述的VOD业务列表段(vod—service—list—sectionO )用于给出不同的VOD服务器提供的VOD业务列表信息,包括如下关键字段:V0D业务列表标识符(vod—service—list—id)、子版本号(sub—version—number)、最后VOD 业务列表标识符(last—vod_service_list_id)、VOD 月艮务器IP 地址(vod_server_ip)、备用VOD 月艮务器IP 地址(backup_vod_server_ip)、VOD 业务数(vod_service_number)、VOD 业务标识符(vod_service_id)> VOD 业务类型(vod_service_type)、VOD 业务优先级(vod_service_priority)、VOD 业务名称字节(vod_service_name_byte)。 [0083] wherein said VOD service list section (vod-service-list-sectionO) for giving different VOD service list information provided by the VOD server, includes the following key segments: V0D service list identifier (VOD- service-list-id), sub-version number (sub-version-number), the final list of VOD service identifier (last-vod_service_list_id), VOD month that works to the IP address (vod_server_ip), spare VOD month that works to the IP address ( backup_vod_server_ip), VOD service number (vod_service_number), VOD service identifier (vod_service_id)> VOD service type (vod_service_type), VOD service priority (vod_service_priority), VOD service name bytes (vod_service_name_byte).

[0084] 其中,所述的VOD业务信息段(vod_service_info_section())用于给出VOD业务相关的信息,包括如下关键信息:V0D业务列表标识符(vod_service_list_id)、VOD业务标识符(vod_service_id)、描述符(descriptor O )、VOD 业务信息类型(vod_service_info_type);其中,所述的VOD业务信息类型(vod_service_info_type)又分为文本描述、图片描述、演员列表、音视频片段四种不同的类型,各种不同的类型又有不同的数据结构和关键字段;其中,所述的文本描述包含如下关键字段:分段标志(segment_flag)、业务或分段的持续时间(duration)、给出文本描述的文本字符(text_char)、分段数目(segment_number)、分段标识符(segment_id);其中,所述的图片描述包含如下关键字段:图片数据段表标识符(picture_data_section_table_id)、图片标识符(picture_id)、图片格式(picture_format)>图片大小(picture_size)、块数目(b [0084] wherein said VOD service information segment (vod_service_info_section ()) for the relevant information, including the key information given VOD service: V0D service list of identifiers (vod_service_list_id), VOD service identifier (vod_service_id), described character (descriptor O), VOD service information types (vod_service_info_type); wherein said VOD service information types (vod_service_info_type) is divided into a textual description, image description, list of actors, audio and video clips of four different types, different there are different types of data structures and key fields; wherein said text description includes the following key segments: segment flag (segment_flag), or the duration of the business segment (dURATION), the textual description is given text character (text_char), the number (segment_number) segment, segment identifier (segment_id); wherein said image description comprises the following key segments: segment image data table identifier (picture_data_section_table_id), picture identifier (picture_id), image format (picture_format)> image size (picture_size), the number (b block lock_number),用于给出和VOD业务相关的图片的总体控制信息;其中,所述的演员列表包含如下关键字段:演员数目(performernumber)、演员名称字节(performer_name_byte)、演员信息字节(performer_info_byte);其中,所述的音视频片段包含如下关键字段:传输流标识符(transport_stream_id)、原始网络标识符(original_network_id)、业务标识符(service_id),用于唯一标识一个音视频片段业务。 lock_number), and for giving the overall VOD service related to image control information; wherein, the list of actors of the key fields comprising the following: number of (performernumber), actors names bytes (performer_name_byte), actor information bytes ( performer_info_byte); wherein said fragment comprises audio and video as key fields: transport stream identifier (a transport_stream_id), original network ID (the original_network_id), service identifier (a service_id), used to uniquely identify a service audio video clip.

[0085] 其中,所述的价格参考描述符(price_reference_descriptor O )给出VOD业务的价格参考相关信息,包括如下关键信息:付费方式(pay_mode),根据pay_mode不同的取值,对应不同的付费方式和关键字段;其中,所述的付费方式包括即兴按次付费(IPPV)、即兴按时付费(IPPT)、按频道付费(PPC);其中,所述的即兴按次付费(IPPV)给出关键字段每看一次的价钱点数(price_point_per_view);其中,所述的即兴按时付费(IPPT)给出关键字段每分钟的价钱点数(price_point_per_minute);其中,所述的按频道付费(PPC)给出关键字段每个频道的价钱点数(price_point_per_channel )。 [0085] wherein, the price reference descriptor (price_reference_descriptor O) to give the price VOD service reference information, key information comprising: payment method (pay_mode), depending pay_mode values, corresponding to different payment methods and key field; wherein the payment methods include pay-per-improvisation (IPPV), time improvised charge (IP-PT), pay-per-channel (the PPC); wherein said pay-per-improvisation (IPPV) given keyword segment-per-view price points (price_point_per_view); wherein the improvisation paid on time (IPPT) gives the key fields per minute price points (price_point_per_minute); wherein the pay-per-channel (PPC) gives the key field for each channel of price points (price_point_per_channel).

[0086] 其中,所述的图片数据段(picture_data_section())用于给出和VOD业务相关的图片数据,包括如下关键/[目息:表标识符(table_id)、图片标识符(picture_id)、最后图片标识符(last_picture_id)、图片实际的数据字节(data_byte)。 [0086] wherein, the picture data segment (picture_data_section ()) for giving image data and associated VOD service, includes the following key / [mesh information: table identifier (the table_id), picture identifier (picture_id), the last picture identifier (last_picture_id), picture the actual data byte (data_byte).

[0087] 其中,所述的音视频片段插入信息(av_segment_insert_info())给出音视频片段业务和VOD业务或VOD业务分段所唯一关联的信息,包括关键字段:V0D业务列表标识符(vod_service_list_id)、VOD 业务标识符(vod_service_id)、分段标识符(segment_id)。 [0087] wherein, the fragment was inserted into audio and video information (av_segment_insert_info ()) gives information uniquely associated audio and video clips and the VOD service or a VOD service business segment, comprising key fields: V0D service list identifier (vod_service_list_id ), VOD service identifier (vod_service_id), segment identifier (segment_id). 通过以上3个标识字段将音视频片段业务和业务或VOD业务分段唯一关联。 Identification field by three or more audio and video clips, and business services or VOD services is uniquely associated segment.

[0088] 以上给出了VOD协议规范数据结构的总体描述,下面分别就各个数据结构的语法语义进行详细的说明,描述顺序分别为:链接描述符(linkage_descriptor() )、VOD业务列表段(vod_service_list_sectionO )、VOD 业务信息段(vod_service_info_sectionO )、价格参考描述符(price_reference_descriptor O )、图片数据段(picture_data_section O )、音视频片段插入信息(av_segment_insert_info O )。 [0088] general description given above VOD protocol specification data structures, respectively, described in detail below on the syntax and semantics of each data structure, the order of description are: linkage descriptor (linkage_descriptor ()), VOD service list section (vod_service_list_sectionO ), VOD service information segment (vod_service_info_sectionO), price reference descriptor (price_reference_descriptor O), picture data segment (picture_data_section O), audio and video clips insertion information (av_segment_insert_info O).

[0089] A、VOD协议规范数据结构一:链接描述符(linkage_descriptor O ),其格式为: [0089] A, VOD data structure of a protocol specification: linkage descriptor (linkage_descriptor O), the format is:

Figure CN102186105BD00111
Figure CN102186105BD00121

[0092] 所定义的链接描述符(linkage_descriptor O )中各个字段的语义说明如下: [0092] DESCRIPTION semantic linkage descriptor (linkage_descriptor O) defined in each field is as follows:

[0093] descriptor_tag :描述符标签,8bit字段,用于标识不同的描述符。 [0093] descriptor_tag: descriptor tag, 8bit field, used to identify different descriptors. 在此为0x4A,表示该描述符是链接描述符。 Here is 0x4A, indicating that the descriptor is a link descriptor.

[0094] descriptor_length :描述符长度,8bit字段,给出描述符的总长度。 [0094] descriptor_length: length of the descriptor, 8bit field gives the total length of the descriptor. 表示描述符中,从该字段后开始的数据部分的字节数。 Descriptor indicates the number of bytes from the beginning of the data field portion.

[0095] transport_stream_id :传输流标识符,16bit字段,在一个传输系统中,用于标识唯一的一个传输流。 [0095] transport_stream_id: a transport stream identifier, 16bit field, in a transmission system, for identifying only one transport stream.

[0096] original_network_id :原始网络标识符,16bit字段,用于给出原始传输系统的网络标识符。 [0096] original_network_id: original network identifier, 16bit field for giving a network identifier of an original delivery system.

[0097] service_id :业务标识符,16bit字段,用于在传输流中标识不同的业务。 [0097] service_id: service identifier, 16bit field for different transport stream identification service. service_id 与program_map_section 中的program_number 相对应。 The service_id corresponds program_map_section the program_number.

[0098] linkage_type :链接类型,8bit字段,用于定义链接类型,例如与VOD业务列表业务链接。 [0098] linkage_type: link type, 8bit field is used to define the type of link, for example link traffic VOD service list. 在SI规范里面,linkage_type为0x80_0xFE为用户定义使用。 In the SI specification inside, linkage_type 0x80_0xFE to use user-defined. 在此,定义linkage_type为OxFE,表示与VOD业务列表业务链接。 Here, as defined linkage_type OxFE, represents the VOD service list business links. 其中,所述的VOD业务列表业务由链接描述符中的transport_st;ream_id、original_network_id 和service_id P隹——指定。 Wherein the VOD service from the service list descriptor of link transport_st; ream_id, original_network_id, and service_id P short-tailed - specified.

[0099] vod_list_version_number :V0D业务列表版本号,5bit字段,用于给出VOD业务列表段总的版本号,与VOD协议规范数据结构二:V0D业务列表段(vod_service_list_section O )中的版本号(version_number)字段相对应。 [0099] vod_list_version_number: V0D service list version number, field 5bit, VOD service list for giving total segment version number, and the protocol specification VOD data structure II: in the service list V0D section (vod_service_list_section O) version number (A version_number) field, respectively. 当VOD业务列表段的信息发生变化时,vod_list_version_number加I。 When the information section of the VOD service list changes, vod_list_version_number add I. 当值增至31时,复位为O。 When the value is increased to 31, the reset is O.

[0100] reserved :预留,用于将来扩展功能使用。 [0100] reserved: reserved for future use for extended functionality. 一般编码为“I”。 General coded as "I".

[0101] force_flag :强制标志,Ibit字段。 [0101] force_flag: force flag, Ibit field. 用于指出当VOD业务列表版本号发生变化时是否强制更新。 It is used to indicate when the VOD service list version number changes if the update. 当其值为“I”时,表示监测到VOD业务列表版本号发生变化时,立即启动VOD业务列表及其附属信息更新。 When its value is "I", when monitoring VOD service list represents the version number changes to immediately start the VOD service list information update its subsidiaries. 当其值为“O”时,表示监测到VOD业务列表版本号发生变化时,不会立即启动VOD业务列表及其附属信息更新,而是在下一次开机或者用户进入点播界面时进行更新。 When its value is "O", said in monitoring the VOD service list version number has changed, does not start immediately VOD service list information update its subsidiaries, but the next time you turn on demand when entering or updating user interface.

[0102] vod_service_list_section_table_id :V0D 业务列表段表标识符,8bit 字段,用于标识VOD业务列表段所属的表。 [0102] vod_service_list_section_table_id: V0D traffic segment table identifier list, 8bit field, for VOD service list table identifies segment belongs. 在SI规范里面,table_id为0X80_0XFE是用户自行定义使用的。 In the SI specification inside, table_id is 0X80_0XFE use is user defined. 在此,定义为0x80。 In this case, defined as 0x80. 其中,table_id和其所标识的段的对应关系请参阅图2所示的表格所示。 Wherein the corresponding relationship between the identified segments table_id and they see the table shown in FIG. 2 FIG. [0103] section_type_l :段类型1,8bit字段,用于给出VOD业务列表段所属的数据类型,和链接描述符所链接的VOD业务列表业务的PMT中所描述的ES的Stream_type相对应。 [0103] section_type_l: ES 1,8bit of Stream_type PMT segment type field for giving a list of VOD service type VOD service data segment belongs to a service list, and linkage descriptor in the linked described corresponds. 在此,定义为OxFF,对应的,在链接描述符所链接的VOD业务列表业务的PMT中用于描述VOD业务列表段的ES的Stream_type为OxFF,表示该ES的数据结构符合VOD协议规范数据结构二:V0D 业务列表段(vod_service_list_section O )的语法。 Here, defined as is OxFF, corresponding to the PMT for the service list VOD service link descriptor in the linked list described in ES VOD service is Stream_type segment is OxFF, showing the data structure of the ES data consistent with structure VOD protocol specification two: grammar V0D business listing segment (vod_service_list_section O) of. section_type>stream_type的对应关系以及其标识的数据类型请参阅图3所示的表格所示。 Data type correspondence relationship section_type> stream_type and its identification, see the table shown in FIG. 3.

[0104] vod_service_info_section_start_table_id :V0D 业务信息段起始表标识符,Sbit字段,当VOD业务信息段有多个表时,用于给出表的起始标识。 [0104] vod_service_info_section_start_table_id: V0D section start service information table identifier, sbit field, when a plurality of VOD service information segment table, for giving the initial identification table. 如图2中的表格所示,在此,可以在0x90-0x9F范围内取值。 As shown in Table 2, here, the value may be in the range 0x90-0x9F. 与VOD协议规范数据结构三:V0D业务信息段(vod_service_info_section ())的表标识符(table_id)相对应,用于给出VOD业务信息段的起始表标识符。 VOD protocol specification with three data structures: V0D service information segment (vod_service_info_section ()) the table identifier (the table_id) corresponding to a given starting segment table identifier information of VOD service.

[0105] vod_service_info_section_end_table_id :V0D 业务信息段结束表标识符,8bit字段,当VOD业务信息段有多个表时,用于给出表的结束标识。 [0105] vod_service_info_section_end_table_id: V0D service information table end segment identifier, 8bit field, when a plurality of VOD service information segment table, for giving end identification table. 如图2所示的表格,在此,可以在0x90-0x9F范围内取值。 Table shown in FIG. 2, in this case, the value may be in the range 0x90-0x9F. 与VOD协议规范数据结构三:V0D业务信息段(Vod_serVice_info_section O )的表标识符(table_id)相对应,用于给出VOD业务信息段的结束表标识符。 VOD protocol specification with three data structures: V0D service information segment (Vod_serVice_info_section O) a table identifier (the table_id) corresponding to a given VOD service identifier information table end segment.

[0106] SeCtion_type_2:段类型2,8bit字段,用于给出VOD业务信息段所属的数据类型,参见图3所示表格,在此,定义为OxFE,对应的,在链接描述符所链接的VOD业务列表业务的PMT中用于描述VOD业务信息段的ES的Stream_type为OxFE,表示该ES的数据结构符合VOD协议规范数据结构三:V0D业务信息段(vod_service_info_section())的语法。 [0106] SeCtion_type_2: 2,8bit segment type field, a data type for giving VOD service information segments belongs Referring to the table shown in FIG. 3, herein defined as OxFE, corresponding link descriptor in the linked VOD Stream_type service list for the service described in PMT ES VOD service information segment is OxFE, the data structures representing VOD protocol specification ES meets three data structures: syntax V0D service information segment (vod_service_info_section ()) of.

[0107] picture_data_section_start_table_id :图片数据段起始表标识符,8bit 字段,当图片数据段有多个表时,用于给出表的起始标识。 [0107] picture_data_section_start_table_id: image data starts table identifier, 8bit field, when a plurality of picture data segment table for the initial identification given in the table. 如图2所示表格,在此,可以在OxAO-OxBF范围内取值。 Table shown in FIG. 2, in this case, the value may be in the range OxAO-OxBF. 与VOD协议规范数据结构五:图片数据段(picture_data_section O )的表标识符(table_id)相对应,用于给出图片数据段的起始表标识符。 VOD data structures and protocol specifications V: Image data segment (picture_data_section O) a table identifier (the table_id) corresponding to the table for giving the starting segment identifier data image.

[0108] picture_data_section_end_table_id :图片数据段结束表标识符,8bit 字段,当图片数据段有多个表时,用于给出表的结束标识。 [0108] picture_data_section_end_table_id: end segment table identifier data image, 8bit field, when a plurality of picture data segment table for the given end identification table. 如图2所示表格,在此,可以在OxAO-OxBF范围内取值。 Table shown in FIG. 2, in this case, the value may be in the range OxAO-OxBF. 与VOD协议规范数据结构五:图片数据段(口;[(31:11^_(^七3_86(31:;[011())的表标识符(table_id)相对应,用于给出图片数据段的结束表标识符。 VOD data structure and protocol specification five: segment image data (port; [(31:11 _ ^ (^ seven 3_86 (31:; [011 ()) the table identifier (the table_id) corresponding to image data for giving the end of the segment table identifier.

[0109] SeCtion_type_3:段类型3,8bit字段,用于给出图片数据段所属的数据类型,参见图3所示表格,在此,定义为OxFD,对应的,在链接描述符所链接的VOD业务列表业务的PMT中用于描述图片数据段的ES的Stream_type为OxFD,表示该ES的数据结构符合VOD协议规范数据结构五:图片数据段(picture_data_section())的语法。 [0109] SeCtion_type_3: 3,8bit segment type field, a data type for giving image data segment belongs, see the table shown in FIG. 3, herein defined as 0xFD, corresponding link descriptor in the linked VOD service list of business PMT used to describe the picture ES data segment Stream_type is OxFD, data structures representing the ES meets VOD protocol specification data structure V: the syntax picture data segment (picture_data_section ()) is.

[0110] vod_service_list_number :V0D业务列表数,24bit字段,用于给出VOD业务列表的数目,和VOD协议规范数据结构二:V0D业务列表段(vod_service_list_section O )中的最后VOD业务列表标识符(last_vod_service_list_id)字段相对应。 [0110] vod_service_list_number: V0D service number list, 24bit field gives the number for VOD service list, and the VOD protocol specification data structure II: Last VOD service list of identifiers (last_vod_service_list_id) V0D service list in paragraph (vod_service_list_section O) field, respectively.

[0111] vod_service_list_id :V0D业务列表标识符,24bit字段,用于在一个VOD业务列表业务内标识不同的VOD业务列表,和VOD协议规范数据结构二:V0D业务列表段(vod_service_list_sectionO )中的VOD 业务列表标识符(vod_service_list_id)字段相对应。 [0111] vod_service_list_id: V0D service list identifier, 24bit field for a VOD service in the service list to identify the different VOD service list, and two VOD protocol specification data structure: a VOD service list, the service list V0D section (vod_service_list_sectionO) identifier (vod_service_list_id) corresponding to a field.

[0112] sub_version_number :子版本号,5bit 字段,用于给出vod_service_list_id 所标识的VOD业务列表的版本号,与VOD协议规范数据结构二:V0D业务列表段(Vod_serVice_list_section ())中的子版本号(sub_version_number)字段相对应。 [0112] sub_version_number: minor version number, 5bit field, a version number given to the service list of VOD vod_service_list_id identified, with the VOD protocol specification data structure II: the version number of the sub service list V0D section (Vod_serVice_list_section ()) ( sub_version_number) corresponding to a field.

[0113] 说明:当VOD业务列表足够多的时候,可以在NIT或BAT中添加多个链接描述符(linkage_descriptor O ),链接向不同的VOD业务列表业务。 [0113] Note: When the VOD service list enough time, can add multiple linkage descriptor (linkage_descriptor O) in the NIT or BAT, the link to the service list of the different VOD services.

[0114] B、V0D 协议规范数据结构二:V0D 业务列表段(vod_service_list_section O ),其 [0114] B, V0D protocol specification two data structures: V0D service list section (vod_service_list_section O), which

格式为: The format is:

[0115] [0115]

Figure CN102186105BD00141

[0116] [0116]

Figure CN102186105BD00151

[0117] 所定义的¥00业务列表段(>0(1_861^;[06_1181:_8601:;[011())中各个字段的语义说明如下: [0117] ¥ 00 defined in a service list segment (> 0 (1_861 ^; [06_1181: _8601:; [011 () semantic description) of each field is as follows:

[0118] table_id :表标识符,8bit字段,用于标识VOD业务列表段所属的表,在此定义为0x80,表不该段属于VOD业务列表段,和VOD协议规范数据结构一:链接描述符(linkage_descriptor ())中VOD 业务列表段表标识符(vod_service_list_section_table_id)字段相对应。 [0118] table_id: table identifier, 8bit field, a table for identifying the VOD service list section belongs, is defined herein as 0x80, segment should belong to the table section VOD service list, and the data structure of a VOD protocol specification: link descriptor (linkage_descriptor ()) in the VOD service list segment table identifier (vod_service_list_section_table_id) corresponding to a field. 具体参见图2所示表格。 Referring specifically to Table 2 shown in FIG.

[0119] section_syntax_indicator :段语法指不符,Ibit 字段,应置'I'。 [0119] section_syntax_indicator: section syntax match means, Ibit field shall be set to 'I'.

[0120] reserved_future_use :保留未来使用,保留未来扩展用。 [0120] reserved_future_use: reserved for future use, reserved for future expansion with.

[0121] reserved :预留,用于将来扩展功能使用。 [0121] reserved: reserved for future use for extended functionality. 一般编码为'I'。 Typically coded as 'I'. [0122] section_length :段长度,12bit字段,它表示从该字段的下一个字节开始的本段的字节长度。 [0122] section_length: length, 12bit field, which indicates the byte length of this section, starting from the next byte of this field.

[0123] version_number :版本号,5bit字段,用于标识VOD业务列表段总的版本号。 [0123] version_number: version number, 5bit field, used to identify the segment of the total VOD service list version number. 与VOD协议规范数据结构一:链接描述符(1;[111^〖6_(16801^卩1:01'())中VOD业务列表版本号(vod_list_version_number)字段相对应。当VOD业务列表段的信息发生变化时,version_number加I。当值增至31时,复位为O。 VOD data structure and a protocol specification: linkage descriptor (1; [111 〖6_ ^ (^ Jie 16801 1:01 '()) in the VOD service list, version number (vod_list_version_number) information corresponding to a field period when the VOD service list. when changed, when the value of I. A version_number added to 31, the reset is O.

[0124] current_next_indicator :当前后续指示符,Ibit字段。 [0124] current_next_indicator: subsequent current indicator, Ibit field. 当被置“I”时,表示当前子表正被使用。 When set to "I", it represents the current sub-table is being used. 当其置“ O ”时,表示所传子表尚未被使用,它是下一个将被使用的子表。 When it is set to "O", it indicates that the sub_table sent is not yet used, which is a sub-table to be used next.

[0125] vod_service_list_id :V0D业务列表标识符,24bit字段,在一个VOD业务列表业务内,和表标识符(table_id=0x80)—起唯一标识一个VOD业务列表。 [0125] vod_service_list_id: V0D service list identifier, 24bit field, in a VOD service list operations, and table identifiers (table_id = 0x80) - from uniquely identifies a VOD service list. 从“0x000001”开始,每增加一个VOD业务列表,该值加I。 From "0x000001" began, each additional VOD service list, plus the value I. 与VOD协议规范数据结构一:链接描述符(linkage_descriptor O )中VOD业务列表标识符(vod_service_list_id)字段相对应。 VOD data structure and a protocol specification: linkage descriptor (linkage_descriptor O) in the VOD service list identifier (vod_service_list_id) corresponding to a field.

[0126] sub_version_number :子版本号,5bit 字段,用于给出vod_service_list_id 所唯一标识的VOD业务列表的版本号。 [0126] sub_version_number: minor version number, 5bit field, vod_service_list_id version number of a VOD service list for giving uniquely identified. 与VOD协议规范数据结构一:链接描述符(linkage_descriptor O )中子版本号(sub_version_number)字段相对应。 VOD data structure and a protocol specification: linkage descriptor (linkage_descriptor O) neutron version number (sub_version_number) corresponding to a field. 当vod_service_list_id所唯一标识的VOD业务列表信息发生变化,该值加I。 When the VOD service list information vod_service_list_id uniquely identified changes, plus the value I. 当值增至31时,复位为O。 When the value is increased to 31, the reset is O.

[0127] last_vod_service_list_id :最后VOD业务列表标识符,24bit字段,用于标识表标识符(table_id=0x80)所标识的表内最后一个VOD业务列表。 [0127] last_vod_service_list_id: Last VOD service list identifier, a final list of VOD service 24bit field in the table, for identifying the table identifier (table_id = 0x80) identified. 与VOD协议规范数据结构一:链接描述符(linkage_descriptor O )中VOD 业务列表数(vod_service_list_number)字段相对应。 VOD data structure and a protocol specification: linkage descriptor (linkage_descriptor O) in the VOD service list number (vod_service_list_number) corresponding to a field.

[0128] section_number :段号,8bit 字段,用于给出vod_service_list_id 所标识的子表的段号,子表中的第一个段的section_number标为“0x00”。 [0128] section_number: segment number, 8bit field, for giving vod_service_list_id the identified segment number of sub-tables, labeled A section_number first sub segment table is "0x00". 每增加一个具有相同的table_id 和vod_service_list_id 的段,section_number 就力口I。 Each additional segment the same table_id and having vod_service_list_id, section_number opening force will I.

[0129] last_section_number :最后段号,8bit 字段,表不vod_service_list_id 所标识的子表最后一个段(即段号最大的段)的段号。 [0129] last_section_number: last segment number, 8bit field, the table does not vod_service_list_id last segment identified sub-table (i.e., the maximum segment number of the segment) segment number.

[0130] vod_server_ip :V0D服务器IP地址,32bit字段,用于描述VOD服务器的IP地址内容。 [0130] vod_server_ip: V0D server IP address, 32bit field, the IP address of the VOD server the content description. 例如=VOD服务器IP地址为192. 168. 16. 100,则在该字段中编码为“0xC0A81064,,。 E.g. = VOD server IP address 192. 168. 16.100, then this field is encoded as "0xC0A81064 ,,.

[0131] backup_vod_server_ip :备用VOD服务器IP地址,32bit字段,用于描述备用VOD服务器的IP地址内容。 [0131] backup_vod_server_ip: IP address of the VOD server backup, 32bit field for the IP address of the VOD server alternate content description. 例如:备用VOD服务器IP地址为192. 168. 16. 101,则在该字段中编码为“0xC0A81065”。 For example: the IP address of the VOD server backup 192. 168. 16.101, in this field is encoded as "0xC0A81065".

[0132] 注意:V0D服务器和备用VOD服务器上的业务内容完全一样,并且,每个VOD服务器对应着一个VOD业务列表,也就是VOD服务器和某一个固定的VOD业务列表业务内VOD业务列表段(vod_service_list_section O )中vod_service_list_id 所唯一标识的VOD 业务列表对应。 [0132] Note: V0D service content on the VOD server and standby server exactly the same, and each VOD server corresponding to a VOD service list, a VOD server that is within a fixed and a service list VOD service VOD service list section ( vod_service_list_section O) VOD service in vod_service_list_id uniquely identified by a corresponding list.

[0133] vod_service_number :V0D业务数,16bit字段,用于给出在一个VOD业务列表业务内vod_service_list_id所唯一标识的VOD业务列表中业务的数目。 [0133] vod_service_number: V0D number service, 16bit field, the number of VOD service list vod_service_list_id uniquely identified in a VOD service in a given service list for services.

[0134] vod_service_id :V0D业务标识符,16bit字段,用于在一个VOD业务列表业务内vod_service_list_id所唯一标识的VOD业务列表中唯一标识一个VOD业务。 [0134] vod_service_id: V0D service identifier, 16bit field for a VOD service in the service list of VOD service list vod_service_list_id uniquely identified uniquely identify a VOD service.

[0135] vod_service_type :V0D业务类型,8bit字段,不同的取值用于标识不同的VOD业务类型。 [0135] vod_service_type: V0D service type, 8bit field, different values ​​used to identify different types of VOD service. vod_service_type不同的取值和VOD业务类型的对应关系如图4所示的表格。 Table 4 illustrated the different value and the corresponding relationship vod_service_type VOD service type as shown in FIG.

[0136] vod_service_prio;rity :V0D 业务优先级,8bit 字段,用于给出vod_service_list_id和vod_service_id所唯一标识的VOD业务的优先级别。 [0136] vod_service_prio; rity: V0D service priority, 8bit field, and for giving priority vod_service_list_id vod_service_id the VOD service uniquely identified.

[0137] ISO 639-2_language_code :IS0 639-2 语言代码,24bit 字段,用于指明VOD 业务名称字节(vod_service_name_byte)字段所采用的语言。 [0137] ISO 639-2_language_code: IS0 639-2 language code, 24bit field for indicating byte language VOD service name (vod_service_name_byte) field is used. 该字段包含一个由ISO 639-2定义的3字符代码。 This field contains a 3 character codes defined by the ISO 639-2. ISO 639-2/B和ISO 639-2/T都可以使用。 ISO 639-2 / B and ISO 639-2 / T can be used. 每个字符都按照GB/T15273. 1-1994编码为8位,并依次插入24位字段。 Each character in accordance with GB / T15273. 1-1994 coded into 8 bits, and sequentially inserted into the 24-bit field.

[0138]例如:法语的 3 字符代码“fre”,可编码为:,0110 0110 0111 0010 0110 0101,。 [0138] For example: 3 French character code "fre", may be encoded as: 0110 ,. 0110 0,111,001,001,100,101

[0139] vod_service_name_length :V0D业务名称长度,8bit字段,以字节为单位给出后续VOD业务名称字节字段的长度。 [0139] vod_service_name_length: V0D service name length, 8bit field length in bytes of the subsequent byte VOD service name field.

[0140] vod_service_name_byte :V0D业务名称字节,8bit字段,用于给出VOD业务的名称。 [0140] vod_service_name_byte: V0D byte service name, 8bit field, the name given VOD service.

[0141] CRC32 :CRC32校验,32bit字段,包含了该段的CRC值。 [0141] CRC32: CRC32 check, 32bit field contains the CRC value that segment.

[0142] C、V0D协议规范数据结构三:V0D业务信息段(vod_service_info_section O ),其格式为: [0142] C, V0D protocol specification three data structures: V0D service information segment (vod_service_info_section O), the format is:

[0143] [0143]

Figure CN102186105BD00171

[0144] [0144]

Figure CN102186105BD00181
Figure CN102186105BD00191
Figure CN102186105BD00201

[0147] 所定义的VOD业务信息段(vod_service_info_section())中各个字段的语义说明如下: [0147] semantic description a VOD service information as defined in paragraph (vod_service_info_section ()) of each field is as follows:

[0148] table_id :表标识符,8bit字段,用于标识VOD业务信息段所属的表,第一个表标识符由VOD协议规范数据结构一:链接描述符(linkage_descriptor O )中VOD业务信息段起始表标识符(vod_service_info_section_start_table_id)字段给定。 [0148] table_id: table identifier, 8bit field, a table for identifying the VOD service information field belongs, identified by the first table data structure of a VOD protocol specification: linkage descriptor (linkage_descriptor O) in the VOD service information from segments beginning table identifier (vod_service_info_section_start_table_id) given field. 后续表依次加1,最后一个表标识符(最大的一个)由VOD协议规范数据结构一:链接描述符(linkage_descriptor ())中VOD 业务信息段结束表标识符(vod_service_info_section_end_table_id)字段给定。 Table subsequent incremented by 1, and finally a table identifier (a maximum of) the data structure of a VOD protocol specification: linkage descriptor (linkage_descriptor ()) in the end of the VOD service information segment table identifier (vod_service_info_section_end_table_id) given field. 取值范围具体参见图2。 Referring specifically to FIG. 2 range.

[0149] section_syntax_indicator :段语法指不符,Ibit 字段,应置'I'。 [0149] section_syntax_indicator: section syntax match means, Ibit field shall be set to 'I'.

[0150] reserved_future_use :保留未来使用,保留未来扩展用。 [0150] reserved_future_use: reserved for future use, reserved for future expansion with. [0151] reserved :预留,用于将来扩展功能使用。 [0151] reserved: reserved for future use for extended functionality. 一般编码为'I'。 Typically coded as 'I'.

[0152] section_length :段长度,12bit字段,它表示从该字段的下一个字节开始的本段的字节长度。 [0152] section_length: length, 12bit field, which indicates the byte length of this section, starting from the next byte of this field.

[0153] version_number :版本号,5bit字段,用于给出由table_id所标识的VOD业务信息段所属的表的版本号。 [0153] version_number: version number, 5bit field for the version number given in Table table_id VOD service information identified by the segment belongs. 当VOD业务信息段所属的表的信息发生变化时,version_number加I。 When the segment information belongs VOD service information table is changed, version_number add I. 当值增至31时,复位为O。 When the value is increased to 31, the reset is O.

[0154] current_next_indicator :当前后续指示符,Ibit字段。 [0154] current_next_indicator: subsequent current indicator, Ibit field. 当被置“I”时,表示当前子表正被使用。 When set to "I", it represents the current sub-table is being used. 当其置“ O ”时,表示所传子表尚未被使用,它是下一个将被使用的子表。 When it is set to "O", it indicates that the sub_table sent is not yet used, which is a sub-table to be used next.

[0155] sub_table_id :子表标识符,24bit字段,在网络内和table_id—起唯一标识一个VOD业务信息段的子表,编码从“0x000001”开始,每增加一个子表,该值加I。 [0155] sub_table_id: sub-table identifier, 24bit field from within the network and table_id- uniquely identify a sub-segment table VOD service information, encoded from "0x000001", every increase in a sub-table, the value added I.

[0156] sub_version_number :子版本号,5bit 字段,用于给出table_id 和sub_table_id所唯一标识的VOD业务信息段的子表的版本号。 [0156] sub_version_number: minor version number, 5bit field, the version number of the given sub-table and sub_table_id table_id uniquely identifies a VOD service information segment.

[0157] I as t_sub_tab I e_i d :最后子表标识符,24bit字段,用于给出table_id所标识的VOD业务信息段所属的表的最后一个子表标识,具有最大的子表标识符。 [0157] I as t_sub_tab I e_i d: the last sub-table identifier, 24bit field, the last sub-table for a given identifier table table_id VOD service information identified segment belongs, having the maximum sub-table identifier.

[0158] vod_service_list_id :V0D业务列表标识符,24bit字段,在VOD业务列表业务内唯一标识一个VOD业务列表。 [0158] vod_service_list_id: V0D service list identifier, 24bit field uniquely identifies a list of VOD service in the service list of VOD service. 与VOD协议规范数据结构二:V0D业务列表段(vod_service_list_sectionO )中VOD业务列表标识符(vod_service_list_id)字段相对应。 VOD protocol specification with two data structures: V0D service list section (vod_service_list_sectionO) in the VOD service list identifier (vod_service_list_id) corresponding to a field.

[0159] section_number :段号,8bit 字段,用于给出table_id 和sub_table_id 所唯一标识的子表的段号,子表中的第一个段的section_number标为“0x00”。 [0159] section_number: segment number, 8bit field, and for giving the sub-segment number table sub_table_id table_id uniquely identified, labeled A section_number a first sub-segment table is "0x00". 每增加一个具有相同的table_id 和sub_table_id 的段,section_number 就加I。 Each additional section with the same table_id and a sub_table_id of, section_number incremented I.

[0160] last_section_number :最后段号,8bit 字段,表不table_id 和sub_table_id 所唯一标识的子表最后一个段(即段号最大的段)的段号。 [0160] last_section_number: segment number of the last segment number, 8bit field, and the table does not table_id the last segment sub_table_id uniquely identified sub-table (i.e., the maximum segment block number).

[0161] vod_service_id :V0D 业务标识符,16bit 字段,用于在vod_service_list_id所唯一标识的VOD业务列表中唯一标识一个VOD业务。 [0161] vod_service_id: V0D service identifier, 16bit field is used to uniquely identify a VOD service in the VOD service list vod_service_list_id uniquely identified. 与VOD协议规范数据结构二:V0D业务列表段(vod_service_list_section())中VOD 业务标识符(vod_service_id)字段相对应。 VOD protocol specification with two data structures: V0D service list section (vod_service_list_section ()) in the VOD service identifier (vod_service_id) corresponding to a field.

[0162] vod_service_descriptor_length :V0D 业务描述符长度,12bit 字段,指出从本字段的下一个字节开始的描述符的总字节长度。 [0162] vod_service_descriptor_length: V0D service descriptor length, 12bit field indicates the total byte length descriptor next byte from the beginning of this field.

[0163] descriptor O :描述符,用于描述VOD业务的相关信息。 [0163] descriptor O: descriptor for VOD service description information. 在此,给出VOD协议规范数据结构四:价格参考描述符(price_reference_descriptor O )作为参考。 Here, the data structure is given four VOD protocol specifications: Rate descriptor (price_reference_descriptor O) as a reference. 使用者也可以根据应用的需要插入其他已有的描述符,或者插入其他自行定义的描述符。 The user can also insert other existing descriptor needs of the application, insertion, or other descriptors define yourself.

[0164] vod_service_info_type :V0D业务信息类型,4bit字段,用于给出VOD业务信息的不同类型,具体有文本描述、图片描述、演员列表、音视频片段。 [0164] vod_service_info_type: V0D service type information, 4bit field to give different types of VOD service information, specifically the text description, image description, list of actors, audio and video clips. vod_service_info_type数值和类型的对应关系请参阅图5所示的表格: vod_service_info_type values ​​and the corresponding relationship types see the table shown in FIG. 5:

[0165] segment_flag :分段标志,Ibit 字段,用于给出vod_service_list_id 和vod_ServiCe_id所唯一标识的VOD业务是否分段,为'I'时表示分段,为'0'时表示不分段。 [0165] segment_flag: segmentation flag, Ibit field, whether given vod_service_list_id VOD service and the unique identification vod_ServiCe_id segment, the segment is represented by 'the I', is '0' indicates no segmentation.

[0166] duration :持续时间,24bit 字段,用于给出vod_service_list_id 和vod_service_id所唯一标识的VOD业务的持续时间(VOD业务不分段时)或者用于给出vod_service_list_id、vod_service_id和segment_id所唯一标识的VOD业务分段的持续时间。 [0166] duration: duration, 24bit field, and for giving the duration vod_service_list_id vod_service_id the VOD service uniquely identified (for non-segmented VOD service) or for giving vod_service_list_id, VOD vod_service_id uniquely identified and segment_id the duration of the business segment. 该字段按6个4位B⑶编码,分别标识时、分、秒。 The field 4 by 6 B⑶ coding, respectively, when the identification, minutes, seconds. 例如:12 :45 :30被编码为“0x124530”。 For example: 12: 45: 30 is encoded to "0x124530". [0167] ISO 639-2_language_code :IS0 639-2 语言代码,24bit 字段,用于给出文本描述或者演员名称或者演员信息描述所采用的语言。 [0167] ISO 639-2_language_code: IS0 639-2 language code, 24bit field for giving a text name or description language, an actor or actress description employed. 具体语义参见VOD协议规范数据结构二:¥00业务列表段&0(1_861^化6_1丨8七_86(^丨011())中ISO 639-2 语言代码(ISO 639_2_language_code)字段的语义。 Referring specifically VOD protocol specification semantic data structure II: 00 ¥ semantic service list 0 & segment (1_861 seven 8 ^ _86 of 6_1 Shu (Shu ^ 011 ()) in ISO 639-2 language code (ISO 639_2_language_code) field.

[0168] vod_service_info_length :V0D业务信息长度,8bit字段,以字节为单位给出该字段之后由vod_service_list_id和vod_service_id所唯一标识的VOD业务的文本描述的字符长度。 And the length of the text character vod_service_list_id vod_service_id VOD service uniquely identified by the service information described later V0D length, 8bit field, in bytes of the field is given: [0168] vod_service_info_length.

[0169] text_char :文本字符,8bit字段,用于给出VOD业务或VOD业务分段的文本描述。 [0169] text_char: text characters, 8bit field, or a VOD service for giving the text segment VOD service description. 一般为简短的业务或业务分段简介。 Generally brief Introduction to business or business segments.

[0170] segment_number :分段数目,16bit 字段,用于给出vod_service_list_id 和vod_service_id所唯一标识的VOD业务的分段数目。 [0170] segment_number: number of segments, 16bit field, and the number of segments for giving vod_service_list_id vod_service_id VOD service is uniquely identified.

[0171] segment_id :分段标识符,16bit 字段,在vod_service_list_id 和vod_service_id所唯一标识的VOD业务内,唯一标识一个分段。 [0171] segment_id: segment identifier, 16bit field, and in the VOD service vod_service_list_id vod_service_id uniquely identified uniquely identifies a segment.

[0172] segment_info_length :分段信息长度,8bit字段,以字节为单位给出该字段之后由vod_service_list_id、vod_service_id 和segment_id 所唯一标识的VOD 业务分段的文本描述的字符长度。 [0172] segment_info_length: segment information length, 8bit field, then the character length in bytes of the field is given by the VOD service segment vod_service_list_id, vod_service_id segment_id uniquely identified and described in the text.

[0173] picture_data_section_table_id :图片数据段表标识符,8bit字段,用于标识和VOD业务相关的图片数据段,与VOD协议规范数据结构五:图片数据段(pictUre_data_section O )中表标识符(table」d)字段相对应。 [0173] picture_data_section_table_id: Image data segment table identifier, 8bit field for identifying image data and VOD services segment associated with the VOD protocol specification data structure V: Image data segment (pictUre_data_section O) table identifier (table "d ) corresponding to a field. 取值范围具体参见图2所示表格。 With particular reference to the range table shown in FIG. 2.

[0174] picture_id :图片标识符,24bit字段,和图片数据段表标识符(picture_data_section_table_id) 一起唯一标识一个图片。 [0174] picture_id: picture identifier, 24bit field, and the picture data segment table identifier (picture_data_section_table_id) together uniquely identifies a picture. 与VOD协议规范数据结构五:图片数据段(picture_data_section O )中图片标识符(picture_id)字段相对应。 VOD data structures and protocol specifications V: Image data segment (picture_data_section O) pictures identifier (picture_id) corresponding to a field.

[0175] picture_format :图片格式,8bit字段,用于给出图片的格式。 [0175] picture_format: image format, 8bit field, for the given image format. picture_format值和图片格式的对应关系请参阅图6所示的表格。 Picture_format correspondence between the value and image formats, please refer to the table shown in Figure 6.

[0176] picture_size :图片大小,32bit 字段,用于给出由picture_data_section_table_id和picture_id所唯一标识的图片数据的字节数。 [0176] picture_size: image size, 32bit field, a number of images given by picture_data_section_table_id and picture_id uniquely identified data byte.

[0177] block_number :块数目,8bit 字段,用于给出由picture_data_section_table_id和pictUre_id所唯一标识的图片数据封装在VOD协议规范数据结构五:图片数据段(picture_data_section())中的分段数,与VOD协议规范数据结构五:图片数据段(picture_data_section O )中的最后段号(last_section_number)字段相对应。 [0177] block_number: number of blocks, 8bit field, specification data is given for the image data and the encapsulation picture_data_section_table_id pictUre_id uniquely identified in five VOD protocol structure: the number of segments in the segment of picture data (picture_data_section ()), and VOD protocol specification data structure V: final segment number of the segment of picture data (picture_data_section O) (last_section_number) corresponding to a field.

[0178] performer_number :演员数目,8bit字段,用于给出主要演员的数目。 [0178] performer_number: the number of actors, 8bit field, a given number of main actors.

[0179] performer_name_length :演员名称长度,8bit字段,以字节为单位给出该字段之后演员名称的长度。 [0179] performer_name_length: actor name length, 8bit field gives the length in bytes of the name of an actor following this field.

[0180] performer_name_byte :演员名称字节,8bit字段,用于给出演员的名称。 [0180] performer_name_byte: byte actor name, 8bit field, the name given actor.

[0181] performer_info_length :演员信息长度,8bit字段,以字节为单位给出该字段之后演员信息的长度。 [0181] performer_info_length: actor information length, 8bit field length in bytes of the starring actor information following this field.

[0182] performer_info_byte :演员信息字节,8bit字段,用于给出演员的信息,一般为演员扮演的角色简介。 [0182] performer_info_byte: actor bytes of information, 8bit field for the information given actor, the actor's role is generally Introduction.

[0183] transport_stream_id :传输流标识符,16bit字段,在一个传输系统中,用于标识唯一的一个传输流。 [0183] transport_stream_id: a transport stream identifier, 16bit field, in a transmission system, for identifying only one transport stream. [0184] original_network_id :原始网络标识符,16bit字段,用于给出原始传输系统的网络标识符。 [0184] original_network_id: original network identifier, 16bit field for giving a network identifier of an original delivery system.

[0185] service_id :业务标识符,16bit字段,用于在传输流中标识不同的业务。 [0185] service_id: service identifier, 16bit field for different transport stream identification service. service_id 与program_map_section 中的program_number 相对应。 The service_id corresponds program_map_section the program_number.

[0186]其中,此处的 transport_stream_id、original_network_id 和service_id 可以唯一标识一个业务,该业务以音视频片段的形式给出VOD业务的简介信息。 [0186] wherein, transport_stream_id, original_network_id, and service_id herein can uniquely identify a service, which gives the VOD service profile information in the form of audio and video clips. 以上三个字段是一种业务控制信息,其作用类似于链接描述符,用于链接向一个音视频片段业务。 Three or more control information fields is a service, which acts like linkage descriptor, for a link to a service audio and video clips.

[0187] CRC32 :CRC32校验,32bit字段,包含了该段的CRC值。 [0187] CRC32: CRC32 check, 32bit field contains the CRC value that segment.

[0188] D、VOD协议规范数据结构四:价格参考描述符(price_reference_descriptor O ),其格式为: [0188] D, VOD protocol specification data structure IV: Rate descriptor (price_reference_descriptor O), the format is:

[0189] [0189]

Figure CN102186105BD00241

[0190] 所定义的价格参考描述符(price_reference_descriptor O )中各个字段的语义说明如下: [0190] Description Rate semantic descriptor (price_reference_descriptor O) defined in each field is as follows:

[0191] descriptor_tag :描述符标签,8bit字段,用于标识不同的描述符。 [0191] descriptor_tag: descriptor tag, 8bit field, used to identify different descriptors. 在此定义为OxFE (在SI规范里面,给出0X80-0XFE为用户自行定义的私有描述符标签),表示该描述符为价格参考描述符,是价格参考描述符的唯一标识。 Is defined herein as OxFE (SI specification which is given as a descriptor tag 0X80-0XFE private user defined), the descriptor represents the price reference descriptor uniquely identifies the price of the reference descriptor.

[0192] descriptor_length :描述符长度,8bit字段,以字节为单位给出该字段之后描述符的长度。 [0192] descriptor_length: length of the descriptor, 8bit field, in bytes is given after the field length descriptor.

[0193] reserved :保留,用于将来扩展功能使用。 [0193] reserved: reserved for future expansion functions. 一般编码为'I'。 Typically coded as 'I'.

[0194] pay_mode :付费方式,3bit字段,用于给出业务的付费方式。 [0194] pay_mode: payment, 3bit field, given by way of paying for the service. pay_mode值和付费方式的对应关系请参阅图7所示的表格: Pay_mode correspondence between the value and the payment method, please refer to the table shown in Figure 7:

[0195] price_point_per_view :每看一次的价钱点数,24bit字段,用于给出即兴按次付费IPPV (Impulse Pay Per View)每看一次所需要的价格点数。 [0195] price_point_per_view: the price-per-view points, 24bit field, used to give impromptu pay-per-IPPV (Impulse Pay Per View) to see the price points once every need. 每点对应的价格可有运营商进行定义。 Each point corresponds to the price operators may have to be defined.

[0196] price_point_per_minute :每分钟的价钱点数,24bit字段,用于给出即时按次付费IPPT (Impulse Pay Per Time)每看一分钟所需要的价格点数。 [0196] price_point_per_minute: Price points per minute, 24bit field, used to give immediate pay-per-IPPT (Impulse Pay Per Time) each to see the price points required for a minute.

[0197] price_point_per_channel :每个频道的价钱点数,24bit字段,用于给出按频道付费PPC (Pay Per Channel)每个频道所需要的价格点数。 [0197] price_point_per_channel: price points for each channel, 24bit field, used to give pay PPC (Pay Per Channel) channel by channel for each price point required.

[0198] E、VOD协议规范数据结构五:图片数据段(picture_data_section()),其格式为: [0198] E, VOD protocol specification data structure V: Image data segment (picture_data_section ()), the format is:

[0199] [0199]

Figure CN102186105BD00251

[0200] [0200]

Figure CN102186105BD00261

[0201] 所定义的图片数据段(picture_data_section())中各个字段的语义说明如下: [0201] semantic description picture data as defined in paragraph (picture_data_section ()) of each field is as follows:

[0202] table_id :表标识符,8bit字段,用于标识图片数据段所属的表,第一个表标识符由VOD协议规范数据结构一:链接描述符(linkage_descriptor O )中图片数据段起始表标识符(picture_data_section_start_table_id)字段给定。 [0202] table_id: table identifier, 8bit field, a table for identifying image data segment belongs, identified by the first table data structure of a VOD protocol specification: linkage descriptor (linkage_descriptor O) in the table image data starts identifier (picture_data_section_start_table_id) given field. 后续表依次加1,最后一个表标识符(最大的一个)由VOD协议规范数据结构一:链接描述符(linkage_descriptor O )中图片数据段结束表标识符(picture_data_section_start_table_id)字段给定。 Table subsequent incremented by 1, and finally a table identifier (a maximum of) the data structure of a VOD protocol specification: linkage descriptor (linkage_descriptor O) end of the picture data segment table identifier (picture_data_section_start_table_id) given field. 该取值和与VOD协议规范数据结构三:V0D业务信息段(vod_service_info_section())中图片数据段表标识符(picture_data_section_table_id)字段唯一对应。 The VOD values ​​and the data structure of three protocol specifications: V0D service information segment (vod_service_info_section ()) of the picture data segment table identifier (picture_data_section_table_id) uniquely corresponding field. 取值范围具体参见图2所示表格。 With particular reference to the range table shown in FIG. 2.

[0203] section_syntax_indicator :段语法指不符,Ibit 字段,应置'I'。 [0203] section_syntax_indicator: section syntax match means, Ibit field shall be set to 'I'.

[0204] reserved_future_use :保留未来使用,保留未来扩展用。 [0204] reserved_future_use: reserved for future use, reserved for future expansion with.

[0205] reserved :预留,用于将来扩展功能使用。 [0205] reserved: reserved for future use for extended functionality. 一般编码为'I'。 Typically coded as 'I'.

[0206] section_length :段长度,12bit字段,它表示从该字段的下一个字节开始的本段的字节长度。 [0206] section_length: length, 12bit field, which indicates the byte length of this section, starting from the next byte of this field.

[0207] version_number :版本号,5bit字段,用于给出由table_id所标识的图片数据段所属的表的版本号。 [0207] version_number: version number, 5bit field for the table version number given by the picture data segment belongs table_id identified. 当图片数据段所属的表的信息发生变化时,version_number加I。 When the picture information data segment belongs to table changes, version_number add I. 当值增至31时,复位为O。 When the value is increased to 31, the reset is O.

[0208] current_next_indicator :当前后续指示符,Ibit字段。 [0208] current_next_indicator: subsequent current indicator, Ibit field. 当被置“I”时,表示当前子表正被使用。 When set to "I", it represents the current sub-table is being used. 当其置“ O ”时,表示所传子表尚未被使用,它是下一个将被使用的子表。 When it is set to "O", it indicates that the sub_table sent is not yet used, which is a sub-table to be used next.

[0209] picture_id :图片标识符,24bit字段,和表标识符(table_id) —起唯一标识一个图片,从“0x000001”开始编码,每增加一个图片,该值加I。 [0209] picture_id: picture identifier, 24bit field, and table identifiers (table_id) - uniquely identifies a starting picture, from "0x000001" start encoding, each additional picture, this value plus I. 与VOD协议规范数据结构三:VOD业务信息段(vod_service_info_section())中图片标识符(picture_id)字段唯一对应。 VOD protocol specification data structure with three: the VOD service information segment (vod_service_info_section ()) picture identifier (picture_id) field uniquely corresponds.

[0210] sub_version_number :子版本号,5bit 字段,给出table_id 和picture_id 所唯一标识的图片的版本号。 [0210] sub_version_number: sub-version number, 5bit field, given table_id and pictures of picture_id the unique identification of the version number. 当图片数据发生变化时,sub_version_number加I。 When the picture data changes, sub_version_number add I. 当值增至31时,复位为O。 When the value is increased to 31, the reset is O.

[0211] last_picture_id :最后图片标识符,24bit字段,给出由table id所标识的表内最后的图片标识,是table_id所标识的表内所有图片中最大的标识符。 [0211] last_picture_id: last picture identifier, 24bit field indicates the last picture in the table identified by a table id identified, all the pictures within the identified table table_id largest identifier.

[0212] section_number :段号,8bit 字段,用于给出table_id 和picture_id 所唯一标识的图片子表的段号,子表中的第一个段的section_number标为“0x00”。 [0212] section_number: segment number, 8bit field, for giving image segment number and the sub-tables picture_id table_id uniquely identified, labeled A section_number a first sub-segment table is "0x00". 每增加一个具有相同的table_id 和picture_id 的段,section_number 就加I。 Each additional section with the same table_id and a picture_id of, section_number incremented I.

[0213] last_section_number :最后段号,8bit 字段,表不table_id 和picture_id 所唯一标识的图片子表最后一个段(即段号最大的段)的段号,与VOD协议规范数据结构三:V0D 业务信息段(vod_service_info_section())中块数目(block_number)字段相对应。 [0213] last_section_number: last segment number, 8bit field, the table does not table_id and last segment image sub-table picture_id uniquely identified (i.e., the maximum segment block number) of the segment number, the VOD protocol specification data structure of three: V0D service information paragraph (vod_service_info_section ()) the number of blocks (block_number) corresponding to a field.

[0214] data_byte :数据字节,8bit字段,给出图片的实际数据。 [0214] data_byte: data byte, 8bit field, given the actual image data.

[0215] CRC32 :CRC32校验,32bit字段,包含了该段的CRC值。 [0215] CRC32: CRC32 check, 32bit field contains the CRC value that segment.

[0216] F、VOD协议规范数据结构六:音视频片段插入信息(av_segment_insert_info O ),其格式为: [0216] F, VOD protocol specification data structure VI: audio video clip insertion information (av_segment_insert_info O), the format is:

[0217] [0217]

Figure CN102186105BD00271

[0218] 所定义的音视频片段插入信息(3¥_8681]16111:_;[11861'1:_;[1^0())中各个字段的语义说明如下: [0218] audio and video segments defined insertion information (3 ¥ _8681] 16111: _; [11861'1: _; [1 ^ 0 ()) semantic description of each field is as follows:

[0219] vod_service_list_id :V0D业务列表标识符,24bit字段,在一个VOD业务列表业务内唯一标识一个VOD业务列表。 [0219] vod_service_list_id: V0D service list identifier, 24bit field uniquely identifies a service list in a VOD service list VOD service.

[0220] vod_service_id :V0D业务标识符,16bit字段,在一个VOD业务列表业务内,vod_service_list_id 和vod_service_id 可以唯一标识一个VOD 业务。 [0220] vod_service_id: V0D service identifier, 16bit field, in a VOD service list service, vod_service_list_id vod_service_id and uniquely identifies a VOD service.

[0221] segment_id :分段标识符,16bit 字段,在网络内,vod_service_list_id、vod_service_id和segment_id可以唯一标识一个VOD业务的某一个具体分段。 [0221] segment_id: segment identifier, 16bit field, within the network, vod_service_list_id, vod_service_id segment_id and uniquely identifies a segment on a specific VOD service. 当在VOD协议规范数据结构三:V0D业务信息段(vod_service_info_section())中分段标志(segment_flag)字段为'0'时,该字段无效。 When the three VOD protocol specification data structure: the segment flag V0D service information segment (vod_service_info_section ()) (segment_flag) field to '0', this field is invalid.

[0222] 下面具体描述本发明实施例中提供的VOD协议规范数据结构的逻辑关系和组织形式。 [0222] VOD protocol in the embodiment of the present invention to provide logic specification and organizational data structures of the following detailed description.

[0223] 上文已经描述了VOD协议规范的六种不同的数据结构,在传输流(TS)中,上述六种不同的数据结构和现有的PSI/SI数据以及图片、音视频等数据以一定的逻辑关系组织在一起,从而形成VOD业务列表及其附属信息。 [0223] The foregoing has described six different data structures VOD protocol specification, the transport stream (TS) in the six different data structures and the existing PSI / SI data and images, audio and video data a certain logic organizations together to form a VOD service list information and its subsidiaries.

[0224] VOD协议规范数据结构的逻辑关系和组织形式的结构如图8所示: [0224] logic and organization of the data structure of a VOD protocol specification structure shown in Figure 8:

[0225] 针对图8中各种数据结构的逻辑关系和组织形式,下面给出详细说明。 [0225] a logical organization and relationship of various data structures in FIG. 8, a detailed description is given below.

[0226] 结构S801给出链接描述符(linkage_descriptor O )中的一些用于控制的关键字段,这些控制字段用于给出VOD业务列表及其附属信息的总体信息。 Some of the key fields for controlling the [0226] structure is given S801 linkage descriptor (linkage_descriptor O) of these control fields for giving general VOD service list information of its subsidiaries. 具体包括关键字段:业务标识符(service_id)、VOD业务列表版本号(vod_list_version_number)、VOD业务列表段表标识符(vod_service_list_section_table_id)、段类型I (section_type_l )、VOD 业务信息段起始表标识符(vod_service_info_sec tion_start_table_id)、VOD业务信息段结束表标识符(vod_service_info_section_end_table_id)、段类型2 (section_type_2)、图片数据段起始表标识符(picture_data_section_start_table_id)、图片数据段结束表标识符(picture_data_section_end_table_id)、段类型3 (section_type_3)、VOD 业务列表数(vod_service_list_number)、VOD 业务列表标识符(vod_service_list_id)、子版本号(sub_version_number)。 Key section comprises: a service identifier (service_id), VOD service list version number (vod_list_version_number), VOD service list segment table identifier (vod_service_list_section_table_id), segment type I (section_type_l), VOD service start information segment table identifier ( vod_service_info_sec tion_start_table_id), VOD service information table identifier end segment (vod_service_info_section_end_table_id), segment type 2 (section_type_2), picture data starting segment table identifier (picture_data_section_start_table_id), the end of the picture data segment table identifier (picture_data_section_end_table_id), segment type 3 ( section_type_3), VOD service list number (vod_service_list_number), VOD service list identifiers (vod_service_list_id), sub-version number (sub_version_number).

[0227] 结构S802节目关联表(PAT)用于给出VOD业务列表业务PMT的PID,具体包括关键字段:节目号(Program_number)、PMT 的PID (PMT_PID)。 [0227] Structure S802 program association table (PAT) for giving service PMT PID VOD service list, the key segments comprises: a program number (Program_number), the PMT PID (PMT_PID).

[0228] 结构S803节目映射表(PMT)用于给出VOD业务列表业务所包含的基本流(ES)的类型及其PID信息,具体包括关键字段:V0D业务列表流类型(stream_type=OxFF)、VOD业务列表PID (vod_service_list_PID)、VOD 业务信息流类型(stream_type=0xFE)、V0D 业务信息PID (vod_service_info_PID)、图片数据流类型(stream_type=OxFD)、图片数据PID(picture_data_PID)。 [0228] Structure S803 program map table (PMT) for giving the type of elementary stream (ES) of the VOD service list included in its service PID information comprises key fields: V0D traffic flow type list (stream_type = OxFF) , VOD service list PID (vod_service_list_PID), VOD service information stream types (stream_type = 0xFE), V0D business information PID (vod_service_info_PID), picture data stream types (stream_type = OxFD), picture data PID (picture_data_PID).

[0229] 结构S804V0D业务列表段(vod_service_list_section O )用于给出VOD业务列表段的关键信息,具体包括关键字段:表标识符(table_id)、版本号(version_number)、VOD业务列表标识符(¥0(1_861^;^6_1丨81:丨(1)、子版本号(81113_^18;[011_11111]^)610、最后VOD 业务列表标识符(last_vod_service_list_id)> VOD 业务标识符(vod_service_id)。 [0229] Structure S804V0D service list section (vod_service_list_section O) for giving key information VOD service list of segments, segment key comprises: table identifier (the table_id), the version number (A version_number), VOD service list identifier (¥ 0 (1_861 ^; ^ 6_1 Shu 81: Shu (1), minor version number (18 ^ 81113_; [011_11111] ^) 610, and finally VOD service list of identifiers (last_vod_service_list_id)> VOD service identifier (vod_service_id).

[0230]结构 3805¥00业务信息段(>0(1_861'¥;^6_;[11;1^0_86(31:;[011())用于给出VOD 业务信息段的关键信息,具体包括关键字段:表标识符(table_id)、VOD业务列表标识符(vod_service_list_id)> VOD 业务标识符(vod_service_id)、图片数据段表标识符(picture_data_section_table_id)、图片标识符(picture_id)、块数目(block_number)、业务标识符(service_id)。 [0230] Structure 3805 ¥ 00 service information segment (> 0 (1_861 '¥; ^ 6 _; [11; 1 ^ 0_86 (31:; [011 ()) for giving key information VOD service information section, comprises key field: table identifier (table_id), VOD service list of identifiers (vod_service_list_id)> VOD service identifier (vod_service_id), the picture data segment table identifier (picture_data_section_table_id), picture identifier (picture_id), the number of blocks (block_number) , service identifier (service_id).

[0231] 结构S806图片数据段(picture_data_section())用于给出图片数据段的关键信息,具体包括关键字段:表标识符(table_id)、图片标识符(picture_id)、最后段号(last_section_number)。 [0231] Image data segment S806 structure (picture_data_section ()) for giving key information of the picture segment data, key fields comprises: table identifier (the table_id), picture identifier (picture_id), the last segment number (A last_section_number) .

[0232] 结构S807节目关联表(PAT)用于给出音视频片段业务的PMT的PID,具体包括关键字段:节目号(Program_number)、PMT 的PID (PMT_PID)。 [0232] Structure S807 program association table (PAT) for giving audio and video clip of traffic PID PMT, comprises key fields: the program number (Program_number), PMT's PID (PMT_PID).

[0233] 结构S808节目映射表(PMT)用于给出音视频片段业务音视频的流类型及其PID信息,具体包括关键字段:视频片段流类型(stream_type=0xF0)、视频片段PID (video_segment_PID)、音频片段流类型(stream_type=OxF I)、音频片段PID (audio_segment_PID)。 [0233] Structure S808 program map table (PMT) for giving the stream type and PID information of audio and video clips of audio and video services, including key segments: a video clip stream type (stream_type = 0xF0), video clips PID (video_segment_PID ), audio clip stream type (stream_type = OxF I), audio segments PID (audio_segment_PID).

[0234] 其中,所述结构5801链接描述符(1;[111^86_(168(31^1:01'0)中的业务标识符(service—id)用于标识一个VOD业务列表业务,和结构S802节目关联表(PAT)中的节目号(Program—number)唯一关联;其中,VOD 业务列表版本号(vod—list—version—number)和结构S804 VOD 业务列表段(vod—service—list—section ())中的版本号(version—number)唯一关联;其中,VOD业务列表段表标识符(vod—service—list—section—table—id)和结构S804V0D 业务列表段(vod—service—list—section())中的表标识符(table—id)唯一关联;其中,段类型I (section—type—I)和结构S803节目映射表(PMT)中VOD业务列表流类型(stream—type=0xFF)唯一关联;其中,VOD业务信息段起始表标识符(vod—service—info—section—start—table—id)与VOD 业务信息段结束表标识符(vod—service—info—section—end—table—id)和结构S805V0D 业务信息段(vod—serv [0234] wherein the linkage descriptor structure 5801 (1; [111 ^ 86_ (168 (1 ^ 31: The 01'0) service identifier (service-id) for identifying a VOD service list of services, and structure S802 program association table (PAT) of the program number (program-number) uniquely associated; wherein, VOD service list version number (vod-list-version-number) and the structure of S804 VOD service list section (vod-service-list- sectionTop ()) in the version number (version-number) uniquely associated; wherein, VOD service list segment table identifier (vod-service-list-section-table-id) and the structure of the service list S804V0D section (vod-service-list -section () table identifier (table-id) uniquely associated); wherein, segment type I (section-type-I) and a program map table structures S803 (PMT) in the VOD service list, the stream type (stream-type = 0xFF) is uniquely associated; wherein, VOD service start information segment table identifier (vod-service-info-section-start-table-id) period ends with the VOD service information table identifier (vod-service-info-section-end -table-id) and service configuration information pieces S805V0D (vod-serv ice—info—section())中的表标识符(table—id)唯一关联;其中,段类型2 (section—type—2)和结构S803节目映射表(PMT)中VOD业务信息流类型(stream—type=0xFE)唯一关联;其中,图片数据段起始表标识符(picture—data—section—start—table—id)与图片数据段结束表标识符(picture—data—section—end—table—id)和结构S806 图片数据段(picture—data—section ())中表标识符(table—id)唯一关联;其中,段类型3 (section—type—3)和结构S803节目映射表(PMT)中图片数据流类型(stream—type=0xFD)唯一关联;其中,VOD业务列表数(vod—service—list—number)和结构S804V0D 业务列表段(vod—service—list—sectionO )中最后VOD业务列表标识符(last—vod—service—list—id)唯一关联;其中,VOD业务列表标识符(vod—service—list—id)和结构S804V0D 业务列表段(vod—service—list—section())中VOD 业务列表标识符(vod—se ice-info-section table identifier (table-id) is uniquely associated ()); wherein, the segment type 2 (section-type-2) and structural S803 program map table (PMT) service information in the VOD stream type (stream -type = 0xFE) is uniquely associated; wherein the starting segment table identifier picture data (picture-data-section-start-table-id) and the end segment table identifier picture data (picture-data-section-end-table- id) and the structure of picture data S806 segment (picture-data-section ()) an identifier table (table-id) is uniquely associated; wherein the segment type 3 (section-type-3) and a program map table structures S803 (PMT) the image data stream type (stream-type = 0xFD) uniquely associated; wherein the last service list in VOD VOD service number (vod-service-list-number) lists, and S804V0D service list section (vod-service-list-sectionO) identifier (last-vod-service-list-id) is uniquely associated; wherein, VOD service list identifier (vod-service-list-id) and the structure of the service list S804V0D section (vod-service-list-section ()) in VOD service list identifier (vod-se rvice—list—id)唯一关联;其中,子版本号(sub—version—number)和结构S 804V0D 业务列表段(vod—service—list—sectionO )中子版本号(sub—version—number)唯一关联。 Is uniquely associated rvice-list-id); wherein the version number is uniquely associated sub (sub-version-number) and the structure of the service list section S 804V0D (vod-service-list-sectionO) neutrons version number (sub-version-number) .

[0235] 其中,所述结构S802节目关联表(PAT)中的PMT的PID (PMT—PID)用于给出结构S803节目映射表(PMT)包标识。 [0235] wherein the configuration S802 program association table (PAT) in the PMT PID (PMT-PID) for giving structural S803 program map table (PMT) packet identification.

[0236] 其中,所述结构S803节目映射表(PMT)中的VOD业务列表PID (vod—service—list—PID)用于给出结构S804V0D业务列表段(vod—service—list—section())所在的传输流(TS)包的标识;其中,VOD业务信息PID (vod—service—info—PID)用于给出结构S805V0D业务信息段(vod—service—info—sectionO )所在的传输流(TS)包的标识;其中,图片数据PID (picture—data—PID)用于给出结构S806 图片数据段(picture—data—section ())所在的传输流(TS)包的标识。 [0236] wherein, VOD service list of structures S803 program map table (PMT) of the PID (vod-service-list-PID) for giving a service list structure S804V0D section (vod-service-list-section ()) where the transport stream identification (TS) packet; wherein, VOD service information PID (vod-service-info-PID) transport stream structure S805V0D for giving traffic information pieces (vod-service-info-sectionO) where (TS ) identification packet; wherein picture data PID (picture-data-PID) for giving structural segment S806 picture data (picture-data-section () transport stream) where (TS) packet identifier.

[0237]其中,所述结构 S804V0D 业务列表段(vod—service—list—sectionO )中VOD 业务列表标识符(vod—service—list—id)和结构S805V0D 业务信息段(vod—service—info—section ())中VOD业务列表标识符(vod—service—list—id)唯一关联;其中,VOD业务标识符(vod—service—id)和结构S805V0D 业务信息段(vod—service—info—section ())中VOD业务标识符(vod—service—id)唯一关联。 [0237] wherein the configuration list S804V0D traffic segments (vod-service-list-sectionO) in the VOD service list identifier (vod-service-list-id) and service configuration information pieces S805V0D (vod-service-info-section (uniquely associated vod-service-list-id); wherein, VOD service identifier (vod-service-id) and service configuration information pieces S805V0D (vod-service-info-section () ()) in the VOD service list identifier ) uniquely associated with the VOD service identifier (vod-service-id).

[0238] 其中,所述结构S805V0D业务信息段(vod—service—info—section O )中图片数据段表标识符(picture—data—section—table—id)和结构S806 图片数据段(picture—data—section ())中表标识符(table—id)唯一关联;其中,图片标识符(picture—id)和结构S806图片数据段(picture—data—sectionO )中图片标识符(picture—id)唯一关联;其中,块数目(block—number)和结构S806 图片数据段(picture—data—section ())中最后段号(last—section_number)唯一关联;其中,业务标识符(service_id)用于标识一个音视频片段业务,和结构S807节目关联表(PAT)中节目号(Program_number)唯一关联。 [0238] wherein, in the service configuration information pieces S805V0D (vod-service-info-section O) segment table identifier picture data (picture-data-section-table-id) and the structure of the data segment S806 picture (picture-data -section ()) an identifier table (table-id) is uniquely associated; wherein the image identifier (picture-id) and the structure of the data segment S806 picture (picture-data-sectionO) picture identifier (picture-id) unique association; wherein the number of blocks (block-number) and the structure of the data segment S806 picture (picture-data-section ()) last segment number (last-section_number) uniquely associated; wherein the service identifier (a service_id) for identifying a audio and video clips business, structure and S807 program association table (PAT) of the program number (Program_number) uniquely associated.

[0239] 其中,所述结构S807节目关联表(PAT)中PMT的PID (PMT_PID)用于给出结构S808节目映射表(PMT)的包标识。 [0239] wherein the configuration S807 program association table (PAT) in the PMT PID (PMT_PID) for giving structural S808 program map table (PMT) packet identifier.

[0240] 其中,所述结构S808节目映射表(PMT)用于给出音视频片段业务音视频的流类型及其PID信息;其中,stream_type=0xF0用于给出视频片段流类型、video_segment_PID用于给出视频片段PID、stream_type=OxFl用于给出音频片段流类型、audio_segment_PID用于给出音频片段PID。 [0240] wherein the configuration S808 program map table (PMT) for giving the stream type and PID information of audio and video clips of audio and video services; wherein, stream_type = 0xF0 for giving video clip stream type, video_segment_PID for video clips are given PID, stream_type = OxFl for giving audio clip stream type, audio_segment_PID for giving audio clip PID.

[0241] 基于图8所示的逻辑关系和组织形式,本发明实施例可以在传输流(TS)中下发VOD业务列表及其附属信息。 [0241] Based on the logic and organization shown in Figure 8, embodiments of the present invention may be issued in the VOD service list of the transport stream (TS) and its appended information. 其中,所述VOD业务列表及其附属信息通过结构S801链接描述符(linkage_descriptor O )中传输流标识符(transport_stream_id)、原始网络标识符(original_network_id)、业务标识符(service_id)唯一链接向一个VOD业务列表业务;其中,所述的VOD业务列表业务包含3个不同类型的基本流;其中,所述的3个不同类型的基本流通过结构S803节目映射表(PMT)给出流类型和相应的PID信息;其中,所述的3个基本流的流类型如图3所示,具体是符合VOD业务列表(vod_service_list_section())语法结构的ES 的stream_type 为OxFF,符合VOD 业务信息段(vod_service_info_section O )语法结构的ES的stream_type为OxFE,符合图片数据段(picture_data_sectionO )语法结构的ES的stream_type为OxFD ;其中,所述的结构S803节目映射表(PMT)中VOD业务列表PID (vod_service_list_PID)所标识的基本流(ES)符合VOD协议规范数据结构二:V0D业务列表段(vod_servic Wherein the VOD service list information structure S801 and its subsidiary linkage descriptor (linkage_descriptor O) in the transport stream identifier (a transport_stream_id), original network ID (the original_network_id), service identifier (a service_id) a unique link to a VOD service listing service; wherein said service VOD service list includes three different types of elementary streams; wherein the three different types of elementary stream stream type and PID are given by the respective structures S803 program map table (PMT) information; wherein, the three basic types of flow streams shown in Figure 3, in particular in line with VOD service list (vod_service_list_section ()) ES stream_type as syntax structure is OxFF, compliance VOD service information segment (vod_service_info_section O) syntax the structure is stream_type ES OxFE, in line with the stream_type ES (picture_data_sectionO) syntax structure is 0xFD picture data segment; wherein the program map table structures S803 (PMT) in the VOD service list PID (vod_service_list_PID) identified elementary stream (ES) protocol specification compliance VOD two data structures: V0D service list section (vod_servic e_list_section())的语法结构(对应结构S804);其中,所述的结构S803节目映射表(PMT)中VOD业务信息PID( vod_service_info_PID)所标识的基本流(ES)符合VOD协议规范数据结构三:V0D业务信息段(vod_service_info_section())的语法结构(对应结构S805);其中,所述的结构S803节目映射表(PMT)中图片数据PID (picture,data_PID)所标识的基本流(ES)符合VOD协议规范数据结构五:图片数据段(picture_data_section O )的语法结构(对应结构S806)。 e_list_section ()) of the grammatical structure (the structure corresponding to S804); wherein the program map table structures S803 (PMT) in the VOD service information PID (vod_service_info_PID) elementary stream (ES) of the identified data structure comply with three VOD protocol specification: V0D service information segment (vod_service_info_section ()) of the grammatical structure (the structure corresponding to S805); wherein the program map table structures S803 (PMT) of the picture data elementary stream PID (ES) (picture, data_PID) meet the identified VOD protocol specification data structure V: image data segment (picture_data_section O) a syntax structure (corresponding structures S806).

[0242] 其中,所述的结构S801链接描述符还给出VOD业务列表及其附属信息的总体信息,具体包括:V0D业务列表版本号用于给出VOD业务列表总的版本号,在VOD业务列表及其附属信息有更新时使用;V0D业务列表段表标识符及其段类型I (对应stream_type=0xFF) ;V0D业务信息段起始表标识符和VOD业务信息段结束表标识符及其段类型2(对应Streanutype=OxFE);图片数据段起始表标识符和图片数据段结束表标识符及其段类型3 (对应stream_type=0xFD);V0D业务列表数用于给出VOD业务列表总的数目,对应VOD服务器的个数,也就是一个VOD服务器对应一个VOD业务列表;V0D业务列表标识符和子版本号用于给出VOD业务列表的标识及其子版本号,在VOD业务列表更新时使用。 [0242] wherein the linkage descriptor structure also gives S801 VOD service list and attached information general information, including: V0D service list version number for VOD service list gives the version number of the total, the VOD service and update the list when using auxiliary information; V0D segment table identifier and a service list segment type I (corresponding to stream_type = 0xFF); V0D service information segment table identifier and the VOD service start information segment and the end segment table identifier type 2 (corresponding to Streanutype = OxFE); image data starts and the picture data segment table identifier table identifier and the end segment type 3 (corresponding to stream_type = 0xFD); V0D given service number for VOD service list listing total number, the number corresponding to the VOD server, i.e. a VOD server corresponding to a VOD service list; V0D service list identifier and the sub-version number for identifying and minor version number given VOD service list, used when VOD service list update .

[0243] 其中,所述结构S808节目映射表(PMT)中音视频片段PID所标识的TS包的数据结构和传统音视频TS包的数据结构存在一些差异,具体在于,传统音视频TS包是音视频基本流(ES)打包成打包基本流(PES),打包基本流(PES)再多路复用打包成传输流(TS)包;而音视频片段业务中的音视频基本流(ES )打包成打包基本流(PES )时,在ES之前插入VOD协议规范数据结构六所定义的音视频片段插入信息(av_segment_insert_info O )。 [0243] wherein, there are some differences in the data structure of the TS packet structure S808 program map table (PMT) fragment of the video and audio data and the PID of the identified structure of a conventional video and audio TS packets, in particular in that, the conventional audio and video TS packet is audio and video elementary stream (ES) packed into packetized elementary stream (PES), a packetized elementary stream (PES) and then packed into multiplex transport stream (TS) packets; audio and video clips and audio and video services in the elementary stream (ES) when packaged into packetized elementary stream (PES), audio and video clips inserted VOD protocol specification defined by the data structure of six insertion information (av_segment_insert_info O) prior to ES. 插入的音视频片段插入信息(av_segment_inser_info O )中VOD业务列表标识符(vod_service_list_id)、VOD业务标识符(vod_service_id)和分段标识符(segment_id)可以唯一标识一个VOD业务或者VOD业务分段,从而能够将音视频片段业务和一个VOD业务或者VOD业务 Insert fragment was inserted into audio and video information (av_segment_inser_info O) in the VOD service list identifier (vod_service_list_id), VOD service identifier (vod_service_id) and the segment identifier (segment_id) can uniquely identify a VOD service or a VOD service segment, thereby the audio and video clips VOD service and a VOD service or service

分段唯一关联。 The only segment association.

[0244] 基于上述逻辑关系和组织形式,本发明实施例可以在传输流(TS)中下发VOD业务列表及其附属信息。 [0244] Based on the above logic and organization, embodiments of the present invention may be issued in the VOD service list of the transport stream (TS) and its appended information. 其中,所述的VOD业务列表包括以下关键信息:V0D业务列表标识符、VOD服务器IP地址、备用VOD服务器IP地址、VOD业务数、VOD业务标识符、VOD业务类型、VOD业务优先级、VOD业务名称字节;其中,所述的VOD业务类型可以15种不同的业务类型,具体参见图4 ;其中,所述的VOD业务优先级可以标识256 (28)种不同的业务优先级。 Wherein the VOD service list information includes the following key: V0D service list identifier, the IP address of the VOD server, the IP address of the VOD server backup, the number of VOD service, service identifier VOD, VOD service type, service priority VOD, VOD service name bytes; wherein said VOD service type may be 15 different service types, see in particular FIG. 4; wherein said VOD service 256 may identify the priority (28) of different service priorities. [0245] 其中,所述VOD业务列表附属信息包括以下关键信息:V0D业务列表标识符、VOD业务标识符、描述符、VOD业务信息类型;其中,所述的描述符可以是VOD协议规范数据结构四所定义的价格参考描述符(price_reference_descriptor())也可以是其他描述符;其中,所述的VOD业务信息类型又分为文本描述、图片描述、演员列表、音视频片段四种不同的类型,各种不同的类型又有不同的数据结构和关键字段;其中,所述的文本描述包含如下关键字段:分段标志、业务或分段的持续时间、给出文本描述的文本字符、分段数目、分段标识符;其中,所述的图片描述包含如下关键字段:图片数据段表标识符、图片标识符、图片格式、图片大小、块数目,用于给出和VOD业务相关的图片的总体控制信息;其中,所述的演员列表包含如下关键字段:演员数目、演员名称字节、演 [0245] wherein the auxiliary information VOD service list information includes the following key: V0D service list identifier, VOD service identifier descriptor, VOD service type information; wherein, the descriptor may be a data structure VOD protocol specification four prices defined reference descriptor (price_reference_descriptor ()) may also be other descriptor; wherein the VOD service type information is divided into a textual description, image description, list of actors, audio and video clips of four different types, various types of data structures and have different key fields; wherein said text description includes the following key segments: segment duration flag, or business segment, text description given text characters, divided number of segments, segment identifiers; wherein said image description comprises the following key sections: a segment table identifier, identifier image, image format, image size, number of blocks of picture data, and the VOD for the given business-related overall control of the image information; wherein, the list of actors of the key fields comprising the following: the number, actors names bytes, play 信息字节;其中,所述的音视频片段包含如下关键字段:传输流标识符、原始网络标识符、业务标识符,用于唯一标识一个音视频片段业务。 Information bytes; wherein said fragment comprises audio and video as key fields: transport stream identifier, original network identifier, service identifier, that uniquely identifies a fragment of audio and video services.

[0246] 其中,所述的价格参考描述符(price_reference_descriptor O )给出VOD业务的价格参考相关信息,包括如下关键信息:付费方式,根据payjnode不同的取值,对应不同的付费方式和关键字段;其中,所述的付费方式包括即兴按次付费(IPPV)、即兴按时付费(IPPT)、按频道付费(PPC);其中,所述的即兴按次付费(IPPV)给出关键字段每看一次的价钱点数;其中,所述的即兴按时付费(IPPT)给出关键字段每分钟的价钱点数;其中,所述的按频道付费(PPC)给出关键字段每个频道的价钱点数。 [0246] wherein, the price reference descriptor (price_reference_descriptor O) is given the reference price VOD service related information, key information comprising: payment method, depending payjnode values, corresponding to different payment key fields and ; wherein the payment methods include pay-per-improvisation (IPPV), time improvised charge (IP-PT), charge (PPC) by channel; wherein said pay-per-improvisation (IPPV) gives the key fields-per-view a price points; wherein, the improvisation charge time (IP-PT) given key field per minute price points; wherein said pay-per-channel (PPC) key fields is given price points for each channel.

[0247] 其中,所述的图片描述用于描述一个图片数据段(picture_data_section());其中,所述的图片数据段(picture_data_sectionO )用于给出和VOD业务相关的图片数据,包括如下关键信息:表标识符、图片标识符、最后图片标识符、图片实际的数据字节。 [0247] wherein said image description is used to describe a segment of picture data (picture_data_section ()); wherein said picture segment data (picture_data_sectionO) for image analysis and data related to the VOD service, includes the following key information : table identifier, pictures identifier, the identifier last picture, picture the actual data bytes.

[0248] 其中,所述的音视频片段业务是指音视频片段基本流(ES)封装成传输流(TS)时,在ES之前插入了VOD协议规范数据结构六所定义的音视频片段插入信息(av_segment_insert_info O )。 When [0248] wherein said audio video clip AV clip refers to a service elementary stream (ES) encapsulated into a transport stream (the TS), ES inserted before VOD protocol specification defined by the data structure of six audio video clip insertion information (av_segment_insert_info O). 其中,所述的音视频片段插入信息(av_segment_insert_info O )给出音视频片段业务和VOD业务或VOD业务分段所唯一关联的信息,包括关键字段:V0D业务列表标识符、VOD业务标识符、分段标识符,通过以上3个标识将音视频片段业务和VOD业务或VOD业务分段唯一关联。 Wherein said fragment was inserted into audio and video information (av_segment_insert_info O) give information uniquely associated audio and video clips, and services or VOD services VOD service subparagraph, comprising key fields: V0D service list identifier, the VOD service identifier, segment identifier, by identifying the three or more audio and video clips, and services or VOD services VOD service is uniquely associated segment.

[0249] 典型地,在一个实际网络中,是在一个传输流(TS)里面下发VOD业务列表业务及其附属信息,在其他传输流(TS)的NIT或BAT中添加VOD协议规范数据结构一所定义的链接描述符(linkage_descriptor()),链接向所述的VOD业务列表业务。 [0249] Typically, in a real network, the service is a VOD service list and auxiliary information issued (TS) inside a transport stream, adding VOD protocol specification data structure other transport stream (TS) in the NIT or BAT defined by a linkage descriptor (linkage_descriptor ()), the link to the VOD service according to the service list. 其中,所述的VOD业务列表业务及其附属信息以数据轮播的形式在传输流(TS)中重复播发。 Wherein the VOD service list information to its affiliated service data carousel broadcast is repeated in the form of transport stream (TS) in.

[0250] 所述机顶盒为双向机顶盒,具有网络回传功能,和一般双向机顶盒相比具有一些特殊的功能模块。 [0250] The set-top box is a two-way set-top box, a network having a return function, and general way STB compared to some special function modules. 具体结构如图9所示。 Specific configuration shown in Figure 9.

[0251] 所述机顶盒S901由三个模块组成,具体包括:机顶盒通用模块S904、点播节目数据库S903、搜索引擎S902。 [0251] The set-top box S901 consists of three modules, including: a set top box universal module S904, S903-demand program database, the search engine S902.

[0252] 其中,所述的机顶盒通用模块S904是指一般双向机顶盒都有的模块,但是可以不集成浏览器。 [0252] wherein said universal set-top box module generally refers to a two-way set-top box S904 modules have, but may not be integrated browser.

[0253] 其中,所述的点播节目数据库S903用于存储VOD业务列表及其附属信息;其中,所述的VOD业务列表及其附属信息包括:V0D业务列表、VOD业务价格信息、VOD业务或VOD业务分段简介、图片描述、演员列表及演员简介、音视频片段;其中,所述的VOD业务列表及其附属信息按照固定的数据结构存储,具体数据结构参见VOD协议规范数据结构;其中,所述的VOD业务列表及其附属信息存储于存储设备;其中,所述的存储设备为机顶盒内置存储设备或者外接存储设备。 [0253] wherein said S903 demand program database for storing VOD service list and auxiliary information; wherein, the service list and VOD subsidiary information comprises: V0D service list, VOD service price information, VOD service or VOD About business segment, image description, a list of actors and actresses profile, audio and video clips; wherein said subsidiary information and the VOD service list data structure stored in a fixed, specific data structures see VOD protocol specification data structure; wherein the VOD service list and auxiliary information stored in said storage device; wherein said storage device is a set top box or built-in storage device external storage device.

[0254] 其中,所述搜索引擎S902用于在点播节目数据库S903中搜索用户想收看的节目信息,根据VOD协议规范数据结构提供的数据结构所给出的VOD业务列表及其附属信息,用户可以在点播节目搜索界面进行以下关键字段的搜索:V0D业务名称、演员名称、VOD业务类型。 [0254] wherein, said search engine for searching S902 demand user want to watch a program database S903, the program information, VOD service list according to the data structure of a data structure VOD protocol specification provided by its subsidiary information given, the user search for the following key fields in the on-demand programming search interface: V0D business name, actor name, VOD service type.

[0255] 下面描述本发明实施例中机顶盒解析VOD业务列表及其附属信息的流程。 [0255] Scheme embodiment the set top box parses its subsidiary VOD service list information according to the present invention will be described below.

[0256] 在上文中的VOD协议规范数据结构的逻辑关系和组织形式中,可以得到一种传输流(TS ),该传输流(TS )包含了VOD业务列表及其附属信息。 [0256] logic and organization VOD protocol specification data in the above structure, it is possible to obtain a transport stream (TS), the transport stream (TS) contains a list of VOD services and ancillary information.

[0257] 具有图9所示结构的机顶盒解析VOD业务列表及其附属信息,可以在机顶盒端形成一个点播节目数据库。 [0257] STB having the structure shown in FIG. 9 and its subsidiary analysis service list information VOD, and form a set-top box end demand programming database. 机顶盒解析VOD业务列表及其附属信息的流程如图10所示。 VOD set top box parses the service list and its subsidiary information flow shown in Figure 10.

[0258] 步骤S1001 :监测NIT或BAT中linkage_type为OxFE的链接描述符,解析该描述符的各个字段,获取VOD业务列表及其附属信息的总体信息,启动VOD列表及其附属信息的接收。 [0258] Step S1001: monitoring the NIT or BAT is OxFE linkage_type the linkage descriptor, parsing the fields of the descriptor, obtain a list of VOD services and general information attached information, VOD list its subsidiary start receiving information.

[0259] 机顶盒解析VOD业务列表及其附属信息建议在节目搜索的过程中完成。 [0259] resolve VOD set-top box business listing information and its subsidiaries during the completion of the Proposed program searched.

[0260] 节目搜索的过程中,机顶盒监测NIT或BAT中链接类型(linkage_type)为OxFE的链接描述符(linkage_descriptor O ),并且按照VOD协议规范数据结构一:链接描述符(linkage_descriptor O )的语法结构解析该描述符的各个字段;其中,所述链接描述符(linkage_descriptor O )链接向一个VOD业务列表业务;其中,所述的VOD业务列表业务由链接描述符中传输流标识符(transport_stream_id)、原始网络标识符(original—network_id)和业务标识符(service_id)三个关键字段唯一标识;其中,所述VOD业务列表业务所在的物理频点与链接描述符中传输流标识符(transport_stream_i d )和原始网络标 [0260] while the program search, a set top box to monitor NIT or BAT link type (linkage_type) is OxFE link descriptor (linkage_descriptor O), and the specification data structure in the VOD Protocol a: linkage descriptor (linkage_descriptor O) a syntax structure parsing the fields of the descriptor; wherein the linkage descriptor (linkage_descriptor O) a link to a service list of VOD service; wherein said VOD service from the service list descriptor link transport stream identifier (a transport_stream_id), the original network identifier (original-network_id) and a service identifier (a service_id) uniquely identified three key fields; wherein said physical frequency where the VOD service list service links transport stream identifier descriptor (transport_stream_i d) and original network standard

识符(original_network_id)所唯一标识的传输流(TS)--对应;其中,所述的VOD业务 Identifier (the original_network_id) uniquely identifies the transport stream (TS) - corresponds; wherein said VOD service

列表业务所在的物理频点由链接描述符中传输流标识符(transport_stream_i d )和原始网络标识符(original_network_i d )所唯一标识的传输流(TS )在网络信息表(NIT )对应的传输系统描述符唯一给出;其中,所述的传输系统描述符在SI规范中有详细定义;其中,所述的传输系统描述符可以是有线传输系统描述符(cable_delivery_system_descriptor O )、卫星传输系统描述符(satellite_delivery_system_descriptor O )、地面传输系统描述符(terrestrial_delivery_system_descriptorO)。 Description of the physical transmission system where the frequency list service in the network information table of the link descriptor in the transport stream identifier (transport_stream_i d) and the original network identifier (original_network_i d) uniquely identified by a transport stream (TS) (NIT) corresponding to given a unique identifier; wherein said transmission system descriptor has a specification defined in detail SI; wherein said delivery system descriptor may be a wired transmission system descriptor (cable_delivery_system_descriptor O), satellite transmission system descriptor (satellite_delivery_system_descriptor O), terrestrial transmission system descriptor (terrestrial_delivery_system_descriptorO).

[0261] 机顶盒端根据所述传输系统描述符中给出的频率等参数信息锁频,得到基带传输流(TS);得到基带传输流(TS)之后,机顶盒端开始进行解复用处理。 [0261] The set-top box end locked frequency and other parameters of the transmission system descriptor given a baseband transport stream (the TS); after a baseband transport stream (the TS), the set top box side starts demultiplexing process. 其中,所述链接描述符中业务标识符(service_id)在得到的基带传输流(TS )中可以唯一标识一个业务,该业务为VOD业务列表业务;所述机顶盒首先解析节目关联表(PAT),所述链接描述符中业务标识符(service_id)和所述节目关联表(PAT)中的节目号(Program_number)唯一关联,由此可以得到VOD业务列表业务节目映射表的PID (PMT_PID);解析所述PMT_PID所标识的节目映射表(PMT),可以得到VOD业务列表业务所包含的基本流(ES)的PID,并可得到所述基本流(ES)的流类型(Stream_type);其中,所述的基本流(ES)和基本流(ES)的流类型(stream_type)包括:V0D 业务列表段(vod_service_list_section O ),流类型为OxFF ;V0D业务信息段(vod_service_info_section()),流类型为OxFE ;图片数据段(picture_data_sectionO),流类型为OxFD ;其中,所述的基本流(ES)的PID包括:V0D业务列表PID(vod_service_list_PID)>VOD 业务信息 Wherein the service identifier in the link descriptor (a service_id) in the obtained baseband transmission stream (TS) can uniquely identify a service, the service is a VOD service list service; first set-top box parses the program association table (the PAT), uniquely associated with the service identifier in the link descriptor (a service_id) and the program association table (PAT) of the program number (Program_number), VOD service list can be obtained by the service program mapping table of PID (PMT_PID); parsing the said program map table PMT_PID identified (the PMT), PID VOD service list can be included in service elementary stream (ES), and can obtain the elementary stream (ES) stream type (Stream_type); wherein said the elementary stream (ES) and elementary stream (ES) stream type (the stream_type) comprising: V0D service list section (vod_service_list_section O), the stream type is OxFF; V0D service information segment (vod_service_info_section ()), the stream type is OxFE; image data segment (picture_data_sectionO), the stream type is 0xFD; wherein, PID elementary stream (ES) of claim comprising: V0D service list PID (vod_service_list_PID)> VOD service information PID (vod_service_info_PID)> 图片数据PID (picture—data_PID);其中,所述VOD业务列表PID (vod_service_list_PID)用于给出VOD业务列表段(vod_service_list_section())所在的传输流(TS)包的标识;其中,所述VOD业务信息PID (vod_service_info_PID)用于给出VOD 业务信息段(vod_service_info_sectionO )所在的传输流(TS)包的标识;其中,所述图片数据PID (picture_data_PID)用于给出图片数据段(picture_data_sectionO )所在传输流(TS)包的标识。 PID (vod_service_info_PID)> picture data PID (picture-data_PID); wherein the VOD service list PID (vod_service_list_PID) for giving a list of VOD service section (vod_service_list_section ()) transport stream (TS) identification packet is located; wherein the VOD service information PID (vod_service_info_PID) for giving VOD service information segment (vod_service_info_sectionO) where the transport stream identification (TS) packet; wherein, said picture data PID (picture_data_PID) for giving image data segment ( picture_data_sectionO) where the transport stream identification (TS) packet.

[0262] 解析所述的链接描述符(linkage_descriptor())还可以得到VOD业务列表及其附属信息的总体信息,包括:V0D业务列表版本号(vod_list_version_number)、强制标志(force_flag)> VOD 业务列表段表标识符(vod_service_list_section_table_id)、段类型I (section_type_l )、VOD 业务信息段起始表标识符(vod_service_info_section_start_table_id)、VOD 业务信息段结束表标识符(vod_service_info_section_end_table_id)、段类型2 (section_type_2)、图片数据段起始表标识符(picture_data_section_start_table_id)、图片数据段结束表标识符(picture_data_section_end_table_id)、段类型3(section_type_3)、V0D 业务列表数(vod_service_list_number)、VOD 业务列表标识(vod_service_list_id)、子版本号(sub_version_number);其中,所述VOD业务列表版本号用于给出VOD业务列表总的版本号,在VOD业务列表数据有更新时使用;其中,所述强制标志是一个标志位, [0262] The parsing the linkage descriptor (linkage_descriptor ()) can also be obtained in general VOD service list information and subsidiary information, comprising: V0D service list version number (vod_list_version_number), the force flag (force_flag)> VOD service list section table identifier (vod_service_list_section_table_id), segment type I (section_type_l), VOD service start information segment table identifier (vod_service_info_section_start_table_id), VOD service information table identifier end segment (vod_service_info_section_end_table_id), segment type 2 (section_type_2), image data segments from beginning table identifier (picture_data_section_start_table_id), the end of the picture data segment table identifier (picture_data_section_end_table_id), segment type 3 (section_type_3), V0D service list number (vod_service_list_number), VOD service list identifier (vod_service_list_id), minor version number (sub_version_number); wherein the VOD service list version number for VOD service list gives the version number of the total used when updating the list of VOD service data; wherein, the forced flag is a flag, 于指出当VOD业务列表版本号发生变化时是否强制更新,为'I'时表示强制更新,为'0'时表示机顶盒下一次启动时更新或用户进入点播界面时更新;其中,所述VOD业务列表段表标识符用于标识VOD业务列表段所属的表;其中,所述段类型I用于给出VOD业务列表段所属的数据类型,和VOD业务列表业务PMT中所描述的VOD业务列表段基本流的Stream_type相对应,固定为OxFF ;其中,所述的VOD业务信息段起始表标识符和VOD业务信息段结束表标识符分别用于给出VOD业务信息段的起始表标识符和结束表标识符;其中,所述段类型2用于给出VOD业务信息段所属的数据类型,和VOD业务列表业务PMT中所描述的VOD业务信息段基本流的stream type相对应,固定为OxFE ;其中,所述图片数据段起始表标识符和图片数据段结束表标识符用于给出图片数据段的起始表标识符和结束表标识符;其中,所 When the VOD service indicated in the list whether the version number has changed to update, indicates when to update 'the I', set top box updates the update start time or when the user enters the playback interface is '0'; wherein, the VOD service segment list table identifier identifying a table for VOD service list section belongs; wherein the segment type is I for the VOD service list data segment segment type VOD service list belongs to, and the VOD service list service described in the PMT is given Stream_type elementary stream correspond to fixed is OxFF; wherein said segment start VOD service information and the VOD service information table identifier end segment table identifier respectively for giving starting VOD service identifier information table and segment end table identifier; wherein the segment type 2 are given for the type of data segment belongs VOD service information, service information and stream type VOD service list section VOD service described in the PMT corresponding to the elementary stream, fixed OxFE ; wherein said picture segment data, and picture data table identifier starting end segment table identifier table identifier for giving the starting and ending segment table identifier picture data; wherein, the 述段类型3用于给出图片数据段所属的数据类型,和VOD业务列表业务PMT中所描述的图片数据段基本流的Stream_type相对应,固定为OxFD ;其中,所述VOD业务列表数用于给出VOD业务列表的个数,和VOD服务器相对应,一个VOD服务器对应一个VOD业务列表;其中,所述VOD业务列表标识符用于在VOD业务列表业务内唯一标识一个VOD业务列表;其中,所述子版本号用于给出VOD业务列表标识符所标识的VOD业务列表的版本号。 Said segment type is type 3 for giving image data of the data segment belongs, and picture data segments Stream_type VOD service list service described in the PMT corresponding to the elementary stream, is fixed to 0xFD; wherein, the list number for VOD service VOD service list given number, and the VOD server corresponding to a VOD server corresponding to a VOD service list; wherein, the list of identifiers for VOD service in the service list of VOD service uniquely identify a VOD service list; wherein, the sub-version number for VOD service is given a list of identifiers the version number of a VOD service list identified.

[0263] 基于以上解析,获取了VOD业务列表及其附属信息的总体信息;并且获取了VOD业务列表、VOD业务信息、图片数据基本流(ES)的PID信息,为后续接收存储VOD业务列表及其附属信息提供相关控制信息。 [0263] Based on the above resolution, the VOD service list acquired general information and attached information; and acquiring the VOD service list, VOD service information, picture data elementary stream (ES) PID information for the subsequent reception and storing VOD service list its subsidiaries, provides information related to control information.

[0264] 将以上获取的所有信息存储进机顶盒端的点播节目数据库,为VOD业务列表及其附属信息的接收提供相关控制信息。 [0264] All of the above acquired information is stored into the STB terminal database demand programs, provide control information to the VOD service list and subsidiary information received.

[0265] 步骤S1002 :解析并接收VOD业务列表段,获取VOD业务列表以及VOD服务器IP地 [0265] Step S1002: receiving and parsing section VOD service list, and acquires a list of VOD service to the VOD server IP

址相关信息。 Address information.

[0266] 根据步骤S1001获取的VOD业务列表PID可以获取VOD业务列表段数据;其中,所述的VOD业务列表段的语法结构和语义由VOD协议规范数据结构二:V0D业务列表段(vod_service_list_section())给出,根据该语法结构解析VOD业务列表PID所标识的传输流(TS)包,可以得到完整的VOD业务列表。 [0266] VOD service may acquire a service list listing pieces of data according to a VOD obtaining the PID step S1001; wherein the grammatical structure and semantics VOD service list by the specification data segment two VOD protocol structure: V0D service list section (vod_service_list_section () ) is given, according to the syntax structure parsing the transport stream VOD service list identified by PID (TS) packets, you can be a complete list of VOD service. 其中,所述的VOD业务列表段(vod_service_list_section ())具有以下关键字段:表标识符(table_id)、段长度(section_length)、版本号(version_number)、VOD 业务列表标识符(vod_service_list_id)、子版本号(sub_version_number)、最后VOD 业务列表标识符(last_vod_service_list_id)、段号(section_number)、最后段号(last_section_number)、VOD 服务器IP 地址(vod_server_ip)、备用VOD 服务器IP 地址(backup_vod_server_ip)、VOD 业务数(vod_service_number)> VOD 业务标识符(vod_service_id)、VOD 业务类型(vod_service_type)、VOD 业务优先级(vod_service_priority)、ISO 639-2 语言代码(ISO 639_2_language_code)、VOD 业务名称长度(vod_service_name_length)、VOD 业务名称字节(vod_service_name_byte), CRC32 校验(CRC32)。 Wherein the VOD service list section (vod_service_list_section ()) has the following key segments: table identifier (the table_id), length (A section_length), version number (A version_number), VOD service list of identifiers (vod_service_list_id), the sub-version No. (sub_version_number), and finally a list of VOD service identifiers (last_vod_service_list_id), segment number (section_number), the last segment number (last_section_number), VOD server IP address (vod_server_ip), the IP address of the VOD server backup (backup_vod_server_ip), VOD service number (vod_service_number )> VOD service identifier (vod_service_id), VOD service type (vod_service_type), VOD service priority (vod_service_priority), ISO 639-2 language code (ISO 639_2_language_code), VOD service name length (vod_service_name_length), VOD service name bytes ( vod_service_name_byte), CRC32 check (CRC32).

[0267] 其中,所述的VOD业务列表段(vod_service_list_section())中包含的关键字段的语义具体参见VOD协议规范数据结构二:V0D业务列表段(vod_service_list_sectionO )中各个字段的语义说明。 [0267] wherein, the semantic key segment of the VOD service list contained in the block (vod_service_list_section ()) specifically refer to VOD protocol specification data structure II: in the service list V0D section (vod_service_list_sectionO) semantic description of the fields.

[0268] 其中,所述具有图9所示结构的机顶盒根据VOD协议规范数据结构二:V0D业务列表段(vod_service_list_section())所定义的语法结构接收并存储VOD业务列表;其中,所述的VOD业务列表存储进所述机顶盒端的点播节目数据库;其中,所述的VOD业务列表以VOD业务列表标识符在一个VOD业务列表业务内所唯一标识的VOD业务列表为单位进行存储;其中,所述的VOD业务列表封装在VOD业务列表段中;其中,所述的VOD业务列表段通过表标识符来标识;其中,所述的表标识符和VOD协议规范数据结构一:链接描述符(linkage_descriptor O )中VOD 业务列表段表标识符(vod_service_list_section_table_id)字段相对应(该字段由步骤S1001获得),固定为0x80 ;其中,所述的VOD业务列表标识符与VOD协议规范数据结构一:链接描述符(linkage_descriptor O )中VOD业务列表标识符(vod_service_list_id)相对应(该字段由 [0268] wherein the set-top box having a structure shown in FIG. 9 VOD protocol specification data structure II: grammatical structure defined by a list of VOD service receives and stores the service list V0D section (vod_service_list_section ()); wherein said VOD a service list stored into the set-top box end demand program database; wherein the VOD service list in a VOD service list identifier that uniquely identifies the VOD service list are stored in units of a VOD service list service; wherein said VOD service list in the VOD service list encapsulation sections; wherein said VOD service list identified by the segment table identifier; wherein said table identifier and the data structure of a VOD protocol specifications: linkage descriptor (linkage_descriptor O) VOD service list in the segment table identifier (vod_service_list_section_table_id) corresponding to a field (the field is obtained from the step S1001), fixed to 0x80; wherein said VOD service list identifier and the data structure of a VOD protocol specification: linkage descriptor (linkage_descriptor O) in the VOD service list identifier (vod_service_list_id) corresponding to (the field of 步骤S1001获得);其中,所述的VOD业务列表所包含的段的数目由最后段号字段给出;其中,所述的VOD业务列表的数目由最后VOD业务列表标识符字段给出,与VOD协议规范数据结构一:链接描述符(linkage_descriptor O)中VOD业务列表数(vod_service_list_number)字段相对应(该字段由步骤S1001获得);其中,所述的VOD业务列表段中的版本号用于给出VOD业务列表的总的版本号,在VOD业务列表及其附属信息更新时使用,与VOD协议规范数据结构一:链接描述符(linkage_descriptor O )中VOD 业务列表版本号(vod_list_version_number)字段相对应(该字段由步骤S1001获得);其中,所述的VOD业务列表段中的子版本号用于给出VOD业务列表的子版本号,在VOD业务列表及其附属信息更新时使用,与VOD协议规范数据结构一:链接描述符(linkage_descriptor O )中子版本号(sub_version_number)字段相对应(该字段由 Obtaining step S1001); wherein the number of segments contained in the VOD service list given by the last segment number field; wherein the number of a VOD service list given by the last VOD service list identifier field, and VOD data structure of a protocol specification: linkage descriptor (linkage_descriptor O) in the VOD service list number (vod_service_list_number) corresponding to a field (the field is obtained from the step S1001); wherein in the VOD service list version number of segments for giving VOD service list version number of the total used in the VOD service list when its subsidiary information is updated, and the data structure of a VOD protocol specification: linkage descriptor (linkage_descriptor O) in the VOD service list, version number (vod_list_version_number) corresponding to a field (the field is obtained in step S1001); wherein in the sub-section of the VOD service list the version number for the sub-version number given VOD service list, used when VOD service list information update its subsidiary, VOD data protocol specification structure a: linkage descriptor (linkage_descriptor O) neutron version number (sub_version_number) corresponding to a field (the field of 骤S1001获得);其中,所述的VOD业务列表段中的VOD服务器IP地址和备用VOD服务器IP地址分别用于标识一个VOD服务器和一个备用VOD服务器;其中,所述的备用VOD服务器是所述VOD服务器的一个备份,和VOD服务器上的业务内容完全一致;其中,每一个VOD服务器和备用VOD服务器对应着一个VOD业务列表,也就是和一个VOD业务列表业务内VOD 业务列表段(vod_service_list_section ())中vod_service_list_id 所唯一标识 Obtaining step S1001); wherein a VOD service in the list of segments for the VOD server and the IP address of the VOD server alternate IP addresses are used to identify a VOD server and a standby server VOD; wherein the backup server is the VOD a backup of the VOD server, and service content on the VOD server exactly the same; wherein each of the VOD server and the standby VOD server corresponding to a VOD service list, i.e., and a VOD service list service VOD service list section (vod_service_list_section () ) that uniquely identifies the vod_service_list_id

的VOD业务列表--对应;其中,所述的vod_service_list_id在一个VOD业务列表业务内 A VOD service list - corresponds; wherein said vod_service_list_id a VOD service in the service list

所唯一标识的VOD业务列表中VOD业务的数目由VOD业务数字段给出;其中,所述的vod_service_list_id在一个VOD业务列表业务内所唯一标识的VOD业务列表中VOD业务标识符可以唯一标识一个VOD业务;其中,所述VOD业务标识符所标识的VOD业务的业务类型由VOD业务类型字段给出,业务类型如图4所示的表格;其中,所述VOD业务标识符所标识的VOD业务的优先级由VOD业务优先级字段给出,优先级高的VOD业务名称在点播界面会优先显示;其中,所述VOD业务标识符所标识的VOD业务的业务名称由VOD业务名称字节字段给出;其中,所述的VOD业务名称字节所采用的语言由ISO 639-2语言代码字段给出;其中,所述的VOD业务名称字节的长度由VOD业务名称长度字段给定。 VOD service list number that uniquely identifies the VOD service is given by the VOD service number field; wherein said vod_service_list_id VOD service in a service list of VOD service list that uniquely identifies the VOD service identifier may uniquely identify a VOD business; wherein VOD service type of the service identified by the identifier given by the VOD service VOD service type field, the service type table shown in FIG. 4; wherein the VOD service identifier identifying a VOD service the priority given by the priority field VOD services, high priority VOD service name will be displayed in the playback interface priority; wherein VOD service identifier of the service name identified by the VOD service is given VOD service byte field name ; wherein, the language name of a VOD service bytes used by the ISO 639-2 language code is given field; wherein the byte length of the name of the VOD service from the VOD service in a given field name length.

[0269] 其中,所述的VOD业务列表段(vod_service_list_sectionO )的正确性由CRC32校验字段保证,当CRC32校验不通过,丢弃当前接收的数据段,并重新接收该段。 [0269] wherein, the accuracy of the VOD service list section (vod_service_list_sectionO) guaranteed by the CRC32 checksum field, CRC32 checksum when not passed, discarding the currently received data segment, and the segment received again.

[0270] 按照步骤S1001获取的控制信息控制VOD业务列表的接收,并且将接收完整的VOD业务列表存储进机顶盒端的点播节目数据库。 [0270] step S1001 according to the acquired control information received VOD service list, and to receive a complete VOD service list stored into the set top box end demand program database.

[0271] 步骤S1003 :解析并接收VOD业务信息段,获取业务付费方式、价格,业务简介,演员列表及演员介绍等信息,并获取和VOD业务相关的图片及音视频片段的控制、关联信息。 [0271] Step S1003: parse and receive VOD service information segments to obtain a service payment, price, business profile, list of actors and actresses description and other information, and gain control and VOD business-related pictures and audio and video clips, and related information.

[0272] 根据步骤S1001获取的VOD业务信息PID可以获取VOD业务信息段数据;其中,所述的VOD业务信息段的语法结构和语义由VOD协议规范数据结构三:V0D业务信息段(vod_service_info_sectionO )给出,根据该语法结构解析VOD业务信息PID所标识的传输流(TS)包,可以得到VOD业务的相关信息。 [0272] VOD service information may be obtained according to the data segment PID VOD service information acquired in step S1001; wherein the syntax and semantics of configuration information pieces VOD service from the VOD protocol specification data structure three: V0D service information segment (vod_service_info_sectionO) to that according to the syntax structure parsing the transport stream VOD service information identified by PID (TS) packets, the relevant information can be obtained VOD service.

[0273] 其中,所述的VOD业务信息段(vod_service_info_section())包含如下关键字段:表标识符(table_id)、段长度(section_length)、版本号(version_number)、子表标识符(sub_table_id)、子版本号(sub_version_number)、最后子表标识符(last_sub_table_id)、VOD 业务列表标识符(vod_service_list_id)、段号(section_number)、最后段号(last_section_number)> VOD 业务标识符(vod_service_id)、VOD 业务描述符长度(vod_service_descripto;r_length)、描述符(descriptor O )、VOD 业务信息类型(vod_service_info_type)、分段标志(segment_flag)、持续时间(duration)、ISO 639-2 语言代码(ISO639_2_language_code)、VOD 业务信息长度(vod_service_info_length)、文本字符(text_char)、分段数目(segment_number)、分段标识符(segment_id)、分段信息长度(segment_info_length)> 图片数据段表标识符(picture_data_section_table_id)、图片标识符(picture_id)> 图片格式 [0273] wherein said VOD service information segment (vod_service_info_section ()) contains the following key field: table identifier (the table_id), length (A section_length), version number (A version_number), the sub-table identifier (sub_table_id), minor version number (sub_version_number), the last sub-table identifier (last_sub_table_id), VOD service list of identifiers (vod_service_list_id), segment number (section_number), the last segment number (last_section_number)> VOD service identifier (vod_service_id), VOD service descriptor length (vod_service_descripto; r_length), a descriptor (descriptor O), VOD service information types (vod_service_info_type), the segment flag (segment_flag), the duration (duration), ISO 639-2 language code (ISO639_2_language_code), VOD service message length ( vod_service_info_length), text characters (text_char), the number (segment_number) segment, segment identifier (segment_id), the length of segment information (segment_info_length)> image data segment table identifier (picture_data_section_table_id), picture identifier (picture_id)> image format picture_format)、图片大小(picture_size)、块数目(block_number)、演员数目(performer_number)、演员名称长度(performer_name_length)、演员名称字节(performer_name_byte)、演员信息长度(performer_info_length)、演员信息字节(performer_info_byte)、传输流标识符(transport_stream_id)、原始网络标识符(original_network_id)、业务标识符(service_id)> CRC32 校验(CRC32)。 picture_format), image size (picture_size), the number of blocks (block_number), the number (performer_number), actors name length (performer_name_length), actor name bytes (performer_name_byte), actor information length (performer_info_length), actor information bytes (performer_info_byte) , transport stream identifier (a transport_stream_id), original network ID (the original_network_id), service identifier (service_id)> CRC32 check (CRC32).

[0274] 其中,所述VOD业务信息段(vod_service_info_section())中包含的关键字段的语义参见VOD协议规范数据结构三:V0D业务信息段(vod_service_info_section())中各个字段的语义说明。 [0274] wherein, the semantic protocols see VOD key field in the VOD service information segment (vod_service_info_section ()) contains three canonical data structures: semantic descriptions of each field of the service information V0D segment (vod_service_info_section ()).

[0275] 其中,所述具有图9所示结构的机顶盒根据VOD协议规范数据结构三:V0D业务信息段(vod_service_info_section())所定义的语法结构接收并存储VOD业务相关信息;其中,所述的VOD业务相关信息存储进机顶盒的点播节目数据库。 [0275] wherein the set-top box having a structure shown in FIG. 9 in accordance with the protocol specification VOD three data structures: receiving and storing service-related information V0D VOD service information segment (vod_service_info_section ()) syntax structure as defined above; wherein said VOD business-related information is stored into the set-top box demand programming database.

[0276] 其中,所述的表标识符用于标识VOD业务信息段所属的表,与VOD协议规范数据结构一:链接描述符(linkage_descriptor O )中VOD业务信息段起始表标识符(vod_service_info_section_start_table_id)和VOD 业务信息段结束表标识符(vod_service_info_section_end_table_id)字段相对应(这两个字段由步骤S1001获得);其中,所述的表标识符和子表标识符字段唯一标识一个子表;其中,所述的表标识符所标识的表中子表的数目由最后子表标识符字段给定;其中,所述的表标识符所标识的版本由版本号字段给定,在VOD业务列表及其附属信息更新时使用;其中,所述的表标识符和子表标识符所唯一标识的子表的版本由子版本号字段给定,在VOD业务列表及其附属信息更新时使用;其中,所述的子表包含多个段,当前段由段号字段标识,所包含的段的数目由最后段号字段给定;其中,所述的 [0276] wherein said table identifier identifying a table for VOD service information segment belongs, and the data structure of a VOD protocol specification: linkage descriptor (linkage_descriptor O) in the VOD service start information segment table identifier (vod_service_info_section_start_table_id) VOD service information segment and the end table identifier (vod_service_info_section_end_table_id) corresponding to fields (two fields obtained from the step S1001); wherein said table identifier and the sub-table identifier field uniquely identifies a sub-table; wherein said table identifier number identified by the last child in the table identifier field of a given sub-table; wherein the version identifier of the table identified by a given version number field, VOD service list information is updated in its subsidiaries when used; wherein the version identifier of the sub-list tables and subtables identifier uniquely identified by the sub-field of a given version number, used when VOD service list information update its subsidiary; wherein the subtable comprising a plurality of segments, the segment of the current segment number field identifies the number of segments contained in a given field of the last segment number; wherein said 号字段所标识的当前段的长度由段长度字段给定。 Length of the current segment number field identified by the field of a given length.

[0277] 在具体实施过程中,所述的VOD业务相关信息由VOD业务列表标识符和VOD业务标识符唯一和一个VOD业务相关联;其中,所述的VOD业务列表标识符可以在一个VOD业务列表业务内唯一标识一个VOD业务列表,与VOD协议规范数据结构二:V0D业务列表段(vod_service_list_section O )中VOD 业务列表标识符(vod_service_list_id)字段相对应(该字段由步骤S1002获得);其中,所述VOD业务标识符在VOD业务列表标识符所标识的VOD业务列表内唯一标识一个VOD业务,与VOD协议规范数据结构二:V0D业务列表段(vod_service_list_section ())中VOD业务标识符(vod_service_id)字段相对应(该字段由步骤S1002获得)。 [0277] In a specific implementation, the unique information related to a VOD service and a VOD service from the VOD service associated identifier and the identifier list of VOD service; wherein, the list of identifiers a VOD service may be a VOD service uniquely identifies a service within the list of VOD service list, with the VOD protocol specification data structure II: in the service list V0D section (vod_service_list_section O) VOD service list of identifiers (vod_service_list_id) corresponding to a field (the field is obtained from the step S1002); wherein the said VOD service identifier in a service list VOD VOD service list identified by the identifier uniquely identifies a VOD service, the protocol specification VOD two data structures: V0D service list section (vod_service_list_section ()) in the VOD service identifier (vod_service_id) field corresponds to (the field is obtained from the step S1002).

[0278] 在具体实施过程中,所述的VOD业务相关信息可以是描述符或不同的VOD业务信息类型;其中,所述的描述符用于描述VOD业务的附属信息,具体可以是VOD协议规范数据结构四所定义的价格参考描述符(price_reference_descriptor O ),也可以是其他描述符;其中,所述的描述符的长度由VOD业务描述符长度字段给定;其中,所述的不同的VOD业务信息类型由VOD业务信息类型字段给定,该字段不同的取值可以标识不同的VOD业务信息类型;其中,所述的VOD业务信息类型可以是文本描述、图片描述、演员列表、音视频片段四种不同的类型,各种不同的类型又有不同的数据结构和关键字段。 [0278] In a specific implementation, the VOD service related information may be a descriptor or a VOD service different types of information; wherein, the descriptor for the auxiliary information described VOD service, may be a particular VOD protocol specification price reference descriptor (price_reference_descriptor O) four defined data structures may also be other descriptor; wherein the length of the descriptor from the descriptor length field VOD service given; wherein the different VOD service VOD service type information from the information field of a given type, the field value can be different to identify different types of VOD service information; wherein, the VOD service information type description can be a text, image description, list of actors, audio and video clips four different types of species, there are a variety of different types of data structures and key fields.

[0279] 在具体实施过程中,所述的文本描述给出如下关键字段:分段标志(Segment_flag)、持续时间(duration)、ISO 639-2 语言代码(ISO 639_2_language_code)、VOD 业务信息长度(vod_service_info_length)、文本字符(text_char)、分段数目(segment_number)、分段标识符(segment_id)、分段信息长度(segment_info_length);其中,所述分段标志字段用于给出VOD业务列表标识符和VOD业务标识符所唯一标识的VOD业务是否分段;其中,所述持续时间字段用于给出VOD业务或VOD业务分段的持续时间;其中,所述的文本字符字段用于给出VOD业务或VOD业务分段的简短描述;其中,所述的VOD业务或VOD业务分段的简短描述所采用的语言由ISO 639-2语言代码字段给出;其中,所述VOD业务简短描述的长度由VOD业务信息长度字段给定;其中,所述VOD业务分段简短描述的长度由分段信息长度字段给定;其中,所述VOD [0279] In a specific implementation, the textual description is given below of key segments: segment flag (Segment_flag), the duration (duration), ISO 639-2 language code (ISO 639_2_language_code), VOD service message length ( vod_service_info_length), text characters (text_char), the number (segment_number) segment, segment identifier (segment_id), the length of segment information (segment_info_length); wherein the segment flag field for giving identifiers and VOD service list whether the VOD service identifier that uniquely identifies the VOD service segments; wherein the duration field for giving VOD service or the duration of the VOD service segments; wherein said text character field for giving VOD service VOD service or a brief description of the segment; wherein, a brief description of the language of the VOD service or segment employed VOD service is given by the ISO 639-2 language code field; wherein the length of the brief description of a VOD service VOD service information field of a given length; wherein, a brief description of the VOD service segment length by the length of the information field of a given segment; wherein the VOD 业务分段的数目由分段数目字段给定;其中,所述VOD业务分段由VOD业务列表标识符、VOD业务标识符和分段标识符字段唯一标识。 Number of traffic segments of a field of a given number of segments; wherein the VOD service from the VOD service list identifier segment, VOD service identifier and the identifier field uniquely identifies the segment.

[0280] 在具体实施过程中,所述的图片描述给出如下关键字段:图片数据段表标识符(picture_data_section_table_id)、图片标识符(picture_id)、图片格式(picture—format)>图片大小(picture_size)、块数目(block_number);其中,所述图片数据段表标识符用于标识和VOD业务相关的图片所在的图片数据段所属的表;其中,所述的图片数据段符合VOD协议规范数据结构五:图片数据段(picture_data_section())的语法结构;其中,所述的图片标识符用于在图片数据段表标识符所标识的图片数据段所属的表中唯一标识一个图片;其中,所述图片的格式由图片格式字段给定,该字段不同的取值给出不同的图片格式,可以是I帧、JPG、GIF、BMP,不同的图片格式有不同的数据结构,机顶盒端据此对图片数据进行解码显示;其中,所述图片的数据量由图片大小字段给定;其中,所述图片在图片 [0280] In a specific implementation, the following description will be given of the key field picture: the picture data segment table identifier (picture_data_section_table_id), picture identifier (picture_id), picture format (picture-format)> image size (picture_size ), the number of blocks (block_number); wherein, the picture data segment table identifier for identifying table image data segments and associated VOD service where the picture belongs; wherein, said picture data segments a data structure comply VOD protocol specification V: image data segment (picture_data_section ()) of the grammatical structure; wherein said picture identifier table picture data for picture data segment of the segment table identified by the identifier belongs uniquely identifies a picture; wherein said picture format by the picture field of a given format, different values ​​of the field is given a different picture formats, may be I frames, JPG, GIF, BMP, different picture formats have different data structures, the set top box side image accordingly decoding data display; wherein an amount of the picture data by the picture field of a given size; wherein the picture in the picture 据段中段的数目由块数目字段给定。 According to the number of segments in the middle of a field of a given number of blocks.

[0281] 在具体实施过程中,所述演员列表给出如下关键字段:演员数目(performer_number)、ISO 639-2 语言代码(ISO 639_2_language_code)、演员名称长度(performer_name_length)、演员名称字节(performer_name_byte)、演员信息长度(performer_info_length)、演员信息字节(performer_info_byte);其中,所述的演员数目字段给出VOD业务列表标识符和VOD业务标识符所唯一标识的VOD业务主要演员的数目;其中,所述演员名称字节字段用于给出演员名称;其中,所述演员名称长度由演员名称长度字段给定;其中,所述的演员信息字节字段用于给出演员在VOD业务中扮演角色的信息简介;其中,所述信息简介的长度由演员信息长度字段给定;其中,所述的演员名称和信息简介所采用的语言由ISO 639-2语言代码给定。 [0281] In a specific implementation, the list of actors key fields is given as follows: Number (performer_number) Actor, ISO 639-2 language code (ISO 639_2_language_code), actor name length (performer_name_length), actor name bytes (performer_name_byte ), actor information length (performer_info_length), actor information bytes (performer_info_byte); wherein the number of said given number of actor fields VOD service list of starring actors VOD service identifier and the service identifier that uniquely identifies the VOD; wherein, the name of the actor byte field for giving actor name; wherein the length of the name of the actor by actor name field of a given length; wherein said cast information byte field for giving actors play a role in the VOD service profile information; wherein, the length of the profile information from the cast information field of a given length; wherein, the language name of the actor and profile information used by a given language code ISO 639-2.

[0282] 在具体实施过程中,所述的音视频片段给出如下关键字段:传输流标识符(transport_stream_id)、原始网络标识符(original_network_id)、业务标识符(service_id),这三个字段的作用相当于一个链接描述符,链接向一个音视频片段业务;其中,所述的传输流标识符和原始网络标识符在网络内唯一标识一个传输流(TS);其中,所述传输流(TS)的物理频点信息在网络信息表(NIT)第二循环的传输系统描述符中进行描述。 [0282] In a specific implementation, the audio and video clips key fields is given as follows: a transport stream identifier (a transport_stream_id), original network ID (the original_network_id), service identifier (a service_id), these three fields acts as a link descriptor, a link to a service audio and video clips; wherein said transport stream identifier and the original network identifier within the network to uniquely identify a transport stream (TS); wherein the transport stream (TS ) physical frequency information transmitting system will be described in a second descriptor loop of the network information table (NIT) in.

[0283] 在具体实施过程中,所述价格参考描述符的语法结构由VOD协议规范数据结构四:价格参考描述符(price_reference_descriptor O )给定,该描述符给出如下关键字段:描述符标签(descriptor_tag)、描述符长度(descriptor_length)、付费方式(pay_mode)、每看一次的价钱点数(price_point_per_view)、每分钟的价钱点数(price_point_per_minute)、每个频道的价钱点数(price_point_per_channel);其中,所述描述符标签在此固定为OxFE,标识该描述符为价格参考描述符;其中,所述的付费方式字段不同的取值对应不同的付费方式和关键字段;其中,所述的付费方式包括即兴按次付费(IPPV)、即兴按时付费(IPPT)、按频道付费(PPC);其中,所述即兴按次付费给出每看一次的价钱点数;其中,所述即兴按时付费给出每分钟的价钱点数;其中,按频道付费给出每个频道的价钱点数。 [0283] In a specific implementation, the reference price descriptor syntax structure from the VOD protocol specification data structure IV: Rate descriptor (price_reference_descriptor O) given descriptor key fields is given as follows: descriptor tag (a descriptor_tag), a descriptor length (the descriptor_length), payment method (pay_mode), the price-per-view points (price_point_per_view), price points per minute (price_point_per_minute), the price point for each channel (price_point_per_channel); wherein said descriptor tag is fixed OxFE herein, the descriptor identifier descriptor Rate; wherein, different payment methods of the field value corresponding to the payment and key fields; wherein said payment methods include impromptu pay-per (IPPV), time improvised charge (IP-PT), pay-per-channel (the PPC); wherein the pay-per-improvisation given price-per-view points; wherein, the improvisation given charge time per minute price points; which, given the price paid by channel points for each channel. 其中,所述付费方式及关键字段的长度由描述符长度字段给定;其中,所述的价格点数对应的价格由运营商进行定义。 Wherein the payment method and the length of the key field from the descriptor length field given; wherein, the price corresponding to the price points defined by the operator.

[0284] 在具体实施过程中,所述的VOD业务信息段(vod_service_info_section())的正确性由CRC32校验字段保证,当CRC32校验不通过,丢弃当前接收的数据段,并重新接收该段。 [0284] In a specific implementation, correctness of the VOD service information segment (vod_service_info_section ()) is guaranteed by a CRC32 checksum field, CRC32 checksum when not passed, discarding the currently received data segment, the receiving segment and re .

[0285] 按照步骤S1001和S1002获取的相关信息控制VOD业务信息段的接收,并且将接收完整的VOD业务信息段存储进机顶盒端的点播节目数据库。 [0285] acquired in step S1001 and S1002 in accordance with the control information receiving section VOD service information, and the received complete information pieces stored into the set top box end VOD service demand program database.

[0286] 步骤S1004 :解析并接收图片数据段,获取和VOD业务相关的图片数据。 [0286] Step S1004: receiving and parsing image data segments, and acquiring image data associated VOD service. [0287] 根据步骤S1001、S1002及S1003获取的相关信息控制接收和VOD业务相关的图片数据。 [0287] reception control data and associated VOD service according to the relevant information in step S1001, S1002 and S1003 is acquired.

[0288] 根据步骤S1001获取的图片数据PID可以获取图片数据;其中,所述的图片数据封装在VOD协议规范数据结构五所定义的图片数据段(picture_data_sectionO )中,根据所述图片数据段的语法结构解析图片数据PID所标识的传输流(TS)包,可以得到和VOD业务相关的图片数据。 [0288] The step S1001 the acquired image data may be acquired PID picture data; wherein said picture image data encapsulated in the data segment (picture_data_sectionO) VOD protocol specification defined by five data structure, syntax structure according to the picture data segment transport stream (TS) resolved picture data packet identified by the PID, and the picture data can be associated VOD service.

[0289] 其中,所述的图片数据段(picture_data_section())包含如下关键字段:表标识符(table_id)、段长度(section_length)、版本号(version_number)、图片标识符(picture_id)、子版本号(sub_version_number)、最后图片标识符(last_picture_id)、段号(section_number)、最后段号(last_section_number)、数据字节(data_byte)、CRC32 校验(CRC32)。 [0289] wherein, the picture data segment (picture_data_section ()) contains the following key field: table identifier (the table_id), length (A section_length), version number (A version_number), picture identifier (picture_id), the sub-version No. (sub_version_number), the last picture identifier (last_picture_id), segment number (section_number), the last segment number (last_section_number), data bytes (data_byte), CRC32 check (CRC32).

[0290] 在具体实施过程中,所述图片数据段(picture_data_section())中包含的关键字段的语义参见VOD协议规范数据结构五:图片数据段(picture_data_section())中各个字段的语义说明。 [0290] In a specific implementation, the semantic key segment of the picture data contained in the block (picture_data_section ()) in the data structure refer to VOD protocol specification five: the picture data segment (picture_data_section ()) semantic description of the fields.

[0291] 在具体实施过程中,所述具有图9所示结构的机顶盒根据VOD协议规范数据结构五:图片数据段(picture_data_section())所定义的语法结构接收并存储图片数据;其中,所述的图片数据存储进机顶盒的点播节目数据库。 [0291] In a specific implementation, the set-top box having a configuration of FIG VOD data according to specification of the protocol structure shown five 9: segment image data (picture_data_section ()) to receive and store picture data syntax structure defined above; wherein said the picture data is stored into the set-top box demand programming database.

[0292] 在具体实施过程中,所述的表标识符用于标识图片数据段所属的表,与VOD协议规范数据结构一:链接描述符(linkage_descriptor O )中图片数据段起始表标识符(picture_data_section_start_table_id)和图片数据段结束表标识符(picture_data_section_start_table_id)字段相对应(这两个字段由步骤SlOOl获得),并且与VOD协议规范数据结构三:V0D业务信息段(vod_service_info_section())中图片数据段表标识符(picture_data_section_table_id)字段相对应(该字段由步骤S1003获得);其中,所述的图片标识符字段和表标识符一起唯一标识一个图片,与VOD协议规范数据结构三:V0D业务信息段(vod_service_info_section())中图片标识符(picture_id)字段相对应(该字段由步骤S1003获得);其中,所述的图片所包含的段数目由最后段号字段给定;其中,所述最后段号与VOD协议规范数据结构:V0D业务信息段(vod_service_ [0292] In a specific implementation, the table identifier for identifying table image data segment belongs, and the data structure of a VOD protocol specification: linkage descriptor (linkage_descriptor O) in the starting picture data segment table identifier ( picture_data_section_start_table_id) end segments and picture data table identifier (picture_data_section_start_table_id) corresponding to fields (two fields obtained from step SlOOl), and specification data of three VOD protocol structure: V0D service information segment (vod_service_info_section ()) is the picture data segment table identifier (picture_data_section_table_id) corresponding to a field (the field is obtained from the step S1003); wherein said image table identifier and identifier field uniquely identifies a picture with, standardized data protocol structure with three VOD: V0D service information segments (vod_service_info_section ()) of the image identifier (picture_id) corresponding to a field (the field is obtained from the step S1003); wherein said number of segments included in a last picture number field of a given segment; wherein the number of the last segment with the VOD protocol specification data structure: V0D business information section (vod_service_ info_section())中块数目(bl0Ck_number)字段相对应(该字段由步骤S1003获得);其中,所述图片数据当前段由段号字段标识;其中,所述图片数据当前段的长度由段长度字段给定;其中,所述图片数据段所属的表的版本由版本号字段给定,在VOD业务列表及其附属信息更新时使用;其中,所述图片的版本由子版本号给定,在VOD业务列表及其附属信息更新时使用;其中,所述表标识符所标识的图片数据段表中所包含的图片数目由最后图片标识符字段给定;其中,所述图片的实际数据由数据字节字段给定。 info_section ()) the number of blocks (bl0Ck_number) corresponding to a field (the field is obtained from the step S1003); wherein the image data from the current segment number field identifies the segment; wherein the length of said current image segment by segment data length field given; wherein the version of the table of the picture data by the segment belongs to a given version number field, used when VOD service list information update its subsidiary; wherein, by the sub-picture version of the version number given in the VOD service when using the update list and auxiliary information; wherein, the picture image data table number of the segment table identified by the identifier included in the final image by the given identifier field; wherein the actual data from the picture data byte given field.

[0293] 在具体实施过程中,所述的图片数据段(口:[(31:1^6_(^七3_86(31:;[011())的正确性由CRC32校验字段保证,当CRC32校验不通过,丢弃当前接收的数据段,并重新接收该段。 [0293] In a specific implementation, the picture data segment (port: [(31: 6 _ 1 ^ (^ seven 3_86 (31:; correctness [011 ()) is guaranteed by a CRC32 checksum field, CRC32 when verification is not passed, discarding the currently received data segment, and the segment received again.

[0294] 按照步骤S1001、S1002及S1003获取的相关信息控制图片数据段的接收,并且将接收完整的图片数据存储进机顶盒端的点播节目数据库。 [0294] obtained follow the steps S1001, S1002 and S1003 the reception control information data segment, and the received image data is stored into a complete end-demand set-top box program database.

[0295] 步骤S1005 :接收并存储VOD业务信息段中相关信息所关联的音视频片段业务。 [0295] Step S1005: receiving audio and video clips and storing service-related information associated with VOD service information segment.

[0296] 根据步骤步骤S1001、S1002及S1003获取的相关信息控制接收和VOD业务或VOD业务分段相关音视频片段数据。 [0296] VOD service and receiving control or VOD service data segment associated audio and video clips based on information Steps S1001, S1002 and S1003 is acquired.

[0297] 在具体实施过程中,所述步骤S1003获取的音视频片段描述的关键字段可以唯一标识一个音视频片段业务;其中,所述的音视频片段描述的关键字段包括:传输流标识符(transport_stream_id)、原始网络标识符(original_network_id)、业务标识符(servicejd);其中,所述的音视频片段描述的关键字段的作用等同于一个链接描述符,链接向一个音视频片段业务;其中,所述的传输流标识符和原始网络标识符在网络内唯一标识一个传输流(TS);其中,所述传输流(TS)的物理频点信息在网络信息表(NIT)第二循环的传输系统描述符中进行描述。 [0297] In a particular implementation, the segment key acquired in step S1003 described audio and video clips can uniquely identify a service audio video clip; wherein the key segment of the audio and video segment description comprising: a transport stream identifier character (a transport_stream_id), original network ID (the original_network_id), service identifier (servicejd); wherein the key role of the audio and video segments equivalent to a fragment described descriptor link, a link to a service audio and video clips; wherein the transport stream identifier and the original network identifier within the network to uniquely identify a transport stream (TS); wherein the physical frequency information, the transport stream (TS) in the network information table (NIT) a second cycle transmission system descriptor will be described.

[0298] 在具体实施过程中,所述具有图9所示结构的机顶盒根据获取的物理频点信息进行锁频并解调,得到基带传输流(TS);其中,所述步骤S1003获取的音视频片段描述中的关键字段业务标识符在所述得到的基带传输流(TS)中可以唯一标识一个业务,该业务为音视频片段业务;其中,所述的音视频片段业务的PMT的PID由所述基带传输流(TS)中的节目关联表(PAT)描述;其中,所述的节目关联表(PAT)给出以下关键信息:节目号(Program_number)、PMT的PID (PMT_PID);其中,所述的节目号和所述步骤S1003获取的音视频片段描述中的关键字段业务标识符唯一关联;其中,所述的PMT_PID用于标识音视频片段业务节目映射表(PMT )所在的传输流(TS )包;其中,所述的节目映射表(PMT )用于给出音视频片段业务音视频的流类型及其PID信息,具体包括关键字段:视频片段流类型(strea [0298] In a specific implementation, the set-top box having a structure shown in FIG. 9 is performed according to the physical information acquired locked frequency and demodulates a baseband transport stream (the TS); wherein, said acquiring step S1003 tone video segment key field service identifier described in the baseband of the transport stream obtained (TS) can uniquely identify a service, the service is a service audio video clip; wherein audio and video segments of the service of the PMT PID the group with the transport stream (TS) of the program association table (PAT) is described; wherein the program association table (PAT) information given in the following key: the program number (Program_number), PMT's PID (PMT_PID); wherein , audio and video clips describing the program number and step S1003 the acquired key field uniquely associated service identifier; wherein said transmission identifier PMT_PID audio and video clips for the service program mapping table (PMT) where stream (TS) packets; wherein the program map table (PMT) for giving the stream type and PID information of audio and video clips of audio and video services, including key segments: a video clip stream type (Strea mjype=OxFO)、视频片段PID(video_segment_PID)、音频片段流类型(stream_type=OxFl)、音频片段PID (audio_segment_PID);其中,所述的视频片段PID用于给出视频基本流(ES)所在的传输流(TS)包的标识;其中,所述的音频片段PID用于给出音频基本流(ES)所在的传输流(TS)包的标识;其中,所述的视频片段PID和音频片段PID所标识的视音频基本流(ES)所在的传输流(TS)包和传统符合MPEG2系统层规范的视音频传输流包的数据结构存在一些差异;其中,所述的差异在于:传统音视频TS包是音视频基本流(ES)打包成打包基本流(PES),打包基本流(PES)再多路复用打包成传输流(TS)包,而音视频片段业务中的音视频基本流(ES)打包成打包基本流(PES)时,在ES之前插入VOD协议规范数据结构六所定义的音视频片段插入信息(av_segment_insert_info O ),再将打包基本流(PES)多路复用打包成传输流(TS) mjype = OxFO), video clips PID (video_segment_PID), audio clip stream type (stream_type = OxFl), audio segments PID (audio_segment_PID); transmitting a video elementary stream (ES) is located wherein said video clip for giving PID identification stream (TS) packet; wherein said audio segments for giving an audio elementary stream PID identification transmission stream (ES) is located (TS) packet; wherein said video clips and audio clips PID as PID video and audio elementary stream identified by a transport stream (ES) is located (TS) packets, and there are some differences in line with the conventional data structure of video and audio transport stream packet of MPEG2 system layer specification; wherein the difference is that: the conventional audio-video TS packet is the audio and video elementary stream (ES) packed into packetized elementary stream (PES), a packetized elementary stream (PES) and then packed into multiplex transport stream (TS) packets, and the elementary stream audio and video services in the audio and video clips (ES ) when packaged into packetized elementary stream (PES), is inserted before ES VOD protocol specification defined data structures six audio video clip insertion information (av_segment_insert_info O), then packetized elementary stream (PES) packed into a transport stream multiplexer (TS) 包;其中,所述的音视频片段插入信息(av_segment_insert_info O )包含以下关键字段:VOD业务列表标识符(vod_service_list_id)、VOD业务标识符(vod_service_id)、分段标识符(segment_id);其中,所述的VOD业务列表标识符在一个VOD业务列表业务内唯一标识一个VOD业务列表;其中,所述的VOD业务标识符在VOD业务列表标识符所标识的VOD业务列表中唯一标识一个VOD业务;其中,所述的分段标识符在VOD业务列表标识符和VOD业务标识符所唯一标识的VOD业务中唯一标识一个VOD业务分段,当在VOD协议规范数据结构三:V0D业务信息段(vod_service_info_section())中分段标志字段(该字段由步骤S403获得)为'0'时,该字段无效;其中,所述的VOD业务列表标识符、VOD业务标识符和分段标识符可以在一个VOD业务列表业务内唯一标识一个VOD业务或者VOD业务分段,从而能够将音视频片段业务和一个VOD业 Packets; wherein the fragment was inserted into audio and video information (av_segment_insert_info O) contains the following key segments: VOD service list of identifiers (vod_service_list_id), VOD service identifier (vod_service_id), segment identifier (segment_id); wherein the VOD service list of said identifier unique to a VOD service list in a VOD service list service; wherein said VOD service identifier VOD VOD service in the service list of the identified list of identifiers that uniquely identifies a VOD service; wherein said segment identifier in a list of VOD service VOD service identifier and the VOD service identifier uniquely identified uniquely identify a VOD service segment, when the VOD protocol specification three data structures: V0D service information segment (vod_service_info_section ( )) the segment flag field (the field is obtained by the step S403) to '0', this field is invalid; wherein said list of identifiers VOD service, VOD service identifier and service identifier may be segmented in a VOD within the list of service uniquely identifies a VOD service or a VOD service segment, which can be audio and video clips, and a VOD service industry 或者VOD业务分段唯一关联;其中,所述的VOD业务列表标识符、VOD业务标识符和分段标识符作为音视频片段业务和VOD业务或VOD业务分段唯一关联的标签(tag);其中,所述的音视频片段业务以所述的标签(tag)所标识的音视频片段为单位存储进所述具有图9所示结构机顶盒的点播节目数据库中。 Or VOD service is uniquely associated segment; wherein said list of identifiers VOD service, VOD service identifier and the segment identifier as audio and video clips, and VOD services or VOD services business segment uniquely associated tag (Tag); wherein demand program databases, audio and video clips of the audio and video clips to the service tag (tag) having a structure identified by the set top box shown in FIG. 9 as a unit into the store in.

[0299] 下面描述本发明实施例提供的机顶盒端更新VOD业务列表及其附属信息的流程。 [0299] the set top box according to an embodiment of the present invention end VOD service list update its subsidiary process information is described below.

[0300] 当前端的VOD业务有更新时,对应的VOD业务列表及其附属信息也会有更新;具体的,在广播下发的传输流(TS)中封装VOD业务列表及其附属信息的数据会有相应的更新,也就是VOD协议规范数据结构一到六所述的数据结构中的数据内容会有相应的更新;其中,所述的更新通过版本号的变化来标识,当VOD业务列表有更新时,所述VOD协议规范数据结构一:链接描述符(linkage_descriptor O )中VOD业务列表版本号(vod_list_version_number)字段会在原来的基础上加'I',并且,所述VOD协议规范数据结构一:链接描述符(linkage_descriptor O )中VOD业务列表标识符(vod_service_list_id)字段所标识的VOD业务列表有更新时,其对应的子版本号(sub_version_number)字段在原来的基础上加' I',对于没有VOD业务更新的VOD业务列表而言,其对应的子版本号(sub_version_number)字段不发生变化;对应的,VOD [0300] When the front end of the VOD service is updated, corresponding to a VOD service list information is also updated its subsidiary; Specifically, issued in the VOD service list broadcast transport stream (TS) of the package and the auxiliary information data is there are updated and the data content is VOD protocol specification data structure of a data structure to be in the six corresponding update; wherein the update identified by the version number changes, when the VOD service list update when the data structure of a VOD protocol specification: linkage descriptor (linkage_descriptor O) in the VOD service list, version number (vod_list_version_number) fields plus 'I' on the basis of the original, and the data structure of a VOD protocol specification: linkage descriptor (linkage_descriptor O) when the VOD service list in the VOD service list identifier (vod_service_list_id) updates the identified fields, the corresponding minor version number (sub_version_number) plus field 'I' on the basis of the original, not for VOD For business update service list VOD, the corresponding sub-version number (sub_version_number) field does not change; corresponding, VOD 业务列表标识符所标识的VOD业务列表的更新,其所在的VOD 业务列表段(vod_service_list_section O )中的版本号(version_number)字段以及和该VOD业务列表对应的子版本号(sub_version_number)字段也要发生相应的变化;其中,与所述发生变化的VOD业务列表相关联的VOD业务信息段(vod_service_info_section O )中的版本号(version_number)和子版本号(sub_version_number)字段也会发生相应的变化;其中,与所述发生变化的VOD业务列表相关联的图片数据段(picturedata_section O )中版本号(version_number)和子版本号(sub_version_number)字段也会发生相应的变化。 VOD service list update service list identified by the identifier, its version number of a VOD service list in paragraph (vod_service_list_section O) (version_number) field, and a sub-version number and the corresponding VOD service list (sub_version_number) fields also occur corresponding change; wherein the version number (a version_number) in a VOD service information segment (vod_service_info_section O) and the VOD service list associated changes and minor version number (sub_version_number) field changes accordingly; wherein, with VOD service list associated with the occurrence of the change in picture data segment (picturedata_section O) version number (a version_number) and the minor version number (sub_version_number) will change the corresponding field.

[0301] 针对前端VOD业务的更新,机顶盒端会有相应的更新处理流程;其中,所述的机顶盒端更新VOD业务列表及其附属信息的流程具体如图11所示。 [0301] VOD service update for the front end, set top boxes will be a corresponding end of the update process flow; wherein said set-top box terminal updates its subsidiary VOD service list specific information flow shown in Figure 11.

[0302] 步骤SllOl:监测NIT或BAT中linkage_type为OxFE的链接描述符,获取VOD业务列表版本号(vod_list_version_number)以及强制标志(force_flag);并获取存储于机顶盒点播节目数据库中的VOD业务列表版本号(vod_list_version_number)。 [0302] Step SllOl: monitoring the NIT or the BAT linkage_type is OxFE link descriptor, obtain VOD service list version number (vod_list_version_number) and a forced flag (force_flag); and acquires storing VOD service list version number in the set top box demand program database (vod_list_version_number).

[0303] 机顶盒时刻监测NIT或BAT中linkage_type为OxFE的链接描述符,获取所述链接描述符中VOD业务列表版本号(vod_list_version_number)以及强制标志(force_flag)字段;并获取存储于机顶盒端点播节目数据库中的VOD业务列表版本号(vod_list_version_number)ο [0303] NIT or BAT STB time monitoring of the linkage_type OxFE link descriptor to obtain the VOD service descriptor linked list version number (vod_list_version_number) and a forced flag (force_flag) field; and acquires the demand program stored in the set-top box terminal database the VOD service list version number (vod_list_version_number) ο

[0304] 所述机顶盒获取的链接描述符中VOD业务列表版本号以及机顶盒端点播节目数据库中的VOD业务列表版本号将作为步骤SI 102中VOD业务列表及其附属信息是否更新的判断依据。 [0304] The set-top box acquires link descriptor VOD service list version number, and a set top box end on-demand program in a VOD service list database version number as in step SI whether the VOD service list information 102 updated its subsidiary judgment basis.

[0305] 步骤SI 102: VOD业务列表版本号比较。 [0305] Step SI 102: Compare VOD service list version number.

[0306] 所述具有图9所示结构的机顶盒根据步骤SllOl获取的相关信息判断是否要进行VOD业务列表的更新以及更新的方式;其中,所述的步骤SllOl获取的相关信息包括:链接类型为OxFE的链接描述符中VOD业务列表版本号以及强制标志字段、存储于机顶盒端点播节目数据库中的VOD业务列表版本号字段。 [0306] FIG. 9 having the information structure according to the set top box determines whether the acquired step SllOl VOD service list to be updated and the update mode; wherein said step SllOl acquired related information includes: link type OxFE link descriptor VOD service list version number, and the force flag field, VOD service list stored in the version number field set-top box end demand programming database.

[0307] 其中,所述的VOD业务列表版本号比较是指从链接类型为OxFE的链接描述符中获取的VOD业务列表版本号字段与存储于机顶盒端点播节目数据库中的VOD业务列表版本号字段相比较;其中,所述的VOD业务列表版本号比较的结果有两种,一种是相等(版本号不变),一种是不等(版本号变)。 [0307] wherein said VOD service list version number comparing means VOD service list version number field and stores the link type of the link descriptor OxFE acquired in set-top box the end-demand program in a VOD service list database version number field comparison; wherein said VOD service list version number of the comparison result, there are two, one is equal (same version number), one is unequal (version number change). [0308] 其中,所述具有图9所示结构的机顶盒根据VOD业务列表版本号比较的结果和由步骤SllOl获取的强制标志字段信息判断是否进行VOD业务列表及其附属信息的更新以及更新的方式;其中,所述的不同的更新方式对应着不同的处理步骤。 [0308] wherein the set-top box having a configuration of FIG updates and update the results of 9 VOD service list according to the version number and to compare the force flag is determined by the field information acquired in step SllOl whether the VOD service list information and its subsidiaries ; wherein said updating different ways corresponding to different processing steps.

[0309] 其中,所述的VOD业务列表版本号比较结果相等(版本号不变),不进行VOD业务列表及其附属信息的更新,转向步骤S1105 ; [0309] wherein said VOD service list version number comparison results are equal (the same version), without updating the VOD service list and attached information, to step S1105;

[0310] 其中,所述的VOD业务列表版本号比较结果不等(版本号变),并且强制标志字段为'0',转向步骤S1103 ; [0310] wherein said VOD service list version number ranging comparison result (change version number), and the force flag field to '0', to step S1103;

[0311] 其中,所述的VOD业务列表版本号比较结果不等(版本号变),并且强制标志字段为'1',转向步骤S1104。 [0311] wherein said VOD service list version number ranging comparison result (change version number), and the force flag field to '1', to step S1104.

[0312] 步骤S1103:机顶盒下一次启动或用户进入点播界面。 [0312] Step S1103: Start or a user interface to enter the set-top box on demand.

[0313] 在步骤SI 102中,当所述VOD业务列表版本号比较结果不等(版本号变),并且强制标志字段为'0'时,要进行VOD业务列表及其附属信息的更新;其中,所述的更新不是立即进行更新,而是机顶盒下一次启动时或者用户进入点播界面时进行更新;其中,所述更新的内容及方法参见步骤S1104。 [0313] In step SI 102, when the VOD service list version number ranging comparison result (change version number), and the force flag field to '0', the VOD service list to update its subsidiary information; wherein , the updates are not immediately updated, or updated when the user enters the playback interface set-top box, but the next start time; wherein the updated content and method, see step S1104.

[0314] 步骤S1104:启动更新,更新子版本号发生变化的VOD业务列表及其附属信息。 [0314] Step S1104: start the update, the update service list VOD sub-version number has changed its subsidiary information.

[0315] 当步骤SI 102中所述的VOD业务列表版本号比较结果不等(版本号变)时,需要进行VOD业务列表及其附属信息的更新。 [0315] When the VOD service list version number of the comparison result in step 102 the SI range (version number change) need to be updated and its subsidiary VOD service list information.

[0316] 其中,所述的更新是只针对子版本号发生变化的VOD业务列表进行,子版本号没有发生变化的VOD业务列表不进行更新;其中,所述的VOD业务列表是指由VOD业务列表标识符在一个VOD业务列表业务内所唯一标识的VOD业务列表;其中,所述的子版本号是指VOD业务列表标识符所唯一标识的VOD业务列表的版本号;其中,所述的更新是指子版本号发生变化的VOD业务列表及其附属信息需要重新接收,并存储进机顶盒端的点播节目数据库,取代具有同样VOD业务列表标识符所标识的VOD业务列表及其附属信息;其中,所述的VOD业务列表及其附属信息是指VOD业务标识符所标识的VOD业务列表以及和该VOD业务列表相关联的附属信息;其中,所述的附属信息是指VOD业务信息段提供的VOD业务相关信息、价格参考描述符提供的VOD业务价格相关信息、图片数据段提供的图片数据信息 [0316] wherein, the VOD service list is updated only for the change is minor version number, the version number of the sub-VOD service list has not changed is not updated; wherein the VOD service list refers to a VOD service a list of identifiers in the service list of VOD service list identifying only VOD service; wherein the sub-version number is the version number of the VOD service list listing VOD service identifier uniquely identified; wherein said updating refers to a VOD service list and auxiliary information sub-version number changes need to re-received and stored into a database on-demand programming terminal STB, substituted with the same VOD service list VOD service list identified by the identifier and auxiliary information; wherein, the VOD service list and said subsidiary information refers to a list of VOD VOD service identifier and the service identifier and the auxiliary information associated with the VOD service list; wherein said auxiliary information refers to information pieces VOD service VOD service provided VOD service price-related information related information, pricing reference descriptors provided picture data picture data segment information provided 、音视频片段插入信息提供的音视频片段业务的标识信息。 , Audio and video clips inserted audio video clip service information providing identification information.

[0317] 其中,所述的VOD业务列表及其附属信息的获得参见图10及其步骤说明。 [0317] wherein said VOD service list information obtained and its subsidiary see FIG. 10 and the steps thereof will be described.

[0318] 步骤SI 105:更新结束。 [0318] Step SI 105: Update end. [0319] 当步骤SI 102中VOD业务列表版本号比较结果相等(版本号不变)时,不进行VOD业务列表及其附属信息的更新,转向该步骤,更新结束; [0319] When the VOD service list in step SI version number is equal to the comparison result 102 (the same version), without its subsidiary VOD service list update information, the steering step, the update is completed;

[0320] 当步骤S1104中子版本号发生变化的VOD业务列表及其附属信息更新结束,并将相关信息存储进机顶盒端的点播节目数据库时,转向该步骤,更新结束。 [0320] When step S1104 neutron VOD service list version number changes its subsidiary information update is completed, and when the relevant information is stored into the STB end-demand program database, the steering step, update is completed.

[0321] 图12所示的视频点播的流程,其包括步骤: Video on demand process shown in [0321] Figure 12, comprising the steps of:

[0322] (I)前端广播下发VOD业务列表及其附属信息:前端按照本发明所提出VOD协议规范所定义的数据结构将VOD业务列表及其附属信息封装进传输流(TS),并通过广播的方式下发;其中,所述的VOD业务列表及其附属信息的数据结构由VOD协议规范数据结构给出定义;其中,所述的VOD协议规范数据结构的逻辑关系和组织形式在图8所示结构及其结构说明中已有详述。 [0322] of (I) by broadcasting a distal VOD service list and auxiliary information: the front end of a data structure according to the present invention as defined in the protocol specification VOD proposed VOD service list and auxiliary information encapsulated into a transport stream (TS), and by issued a broadcast manner; wherein the service list data structure and its attached information is given VOD VOD protocol specification defined by the data structure; wherein said logic and organization VOD protocol specification data structure in FIG. 8 FIG their structural description has been described in detail. [0323] (2)机顶盒端接收并存储VOD业务列表及其附属信息:双向机顶盒按照VOD协议规范所定义的数据结构接收VOD业务列表及其附属信息,并将这些信息存储进机顶盒端的点播节目数据库;其中,所述的双向机顶盒具有图9所示的结构,其包含的模块如图9给出的结构说明所示;其中,所述的接收VOD业务列表及其附属信息并且在机顶盒端创建点播节目数据库的流程方法参见图10 (机顶盒解析VOD业务列表及其附属信息的流程)所示的流程及其步骤说明;其中,所述的点播节目数据库的更新参见图11(机顶盒端更新VOD业务列表及其附属信息的流程)所示的流程及其步骤说明。 [0323] (2) a set top box receives and stores the VOD service list and auxiliary information: the data structure according to the way STB VOD protocol specification defined by its subsidiary received VOD service list information, and stores this information into the STB end-demand program database ; wherein said two-way set-top box having the structure shown in FIG. 9, the module comprising a structure description is given in FIG. 9; wherein said receiving VOD service list and auxiliary information and creates an end-on-demand set-top box database program flow of the method see FIG. 10 (a set top box parses VOD service list and attached information flow) and the steps shown in the flow description; wherein updating see FIG. 11 of the database demand program (VOD STB client update service list its subsidiary flow information) and the step of the flow shown in FIG.

[0324] (3)在机顶盒端点播节目数据库中选择或筛选节目:用户需要收看点播节目,可以直接调用点播节目数据库中的业务列表或者用遥控器输入业务名称、业务类型、演员名称等信息通过机顶盒端的搜索引擎在点播节目数据库中筛选出用户想要收看的节目。 [0324] (3) selecting or screening program at the set top box end demand program database: the user needs to watch on-demand program, can directly call the service list on-demand program database or enter the service name with a remote control, service type, performer name, etc. by set-top box end of the search engines filter out the user wants to watch the program on demand programming database.

[0325] 其中,所述用户直接调用点播节目数据库中的业务列表的方法是指在点播界面显示VOD业务列表及其附属信息,用户通过遥控器上下切换,选择节目;其中,所述VOD业务列表的显示排序是按照VOD协议规范数据结构二:V0D业务列表段(vod_service_list_section O )中VOD业务优先级(vod_service_priority)字段所标识的值进行排序,数值大的排在前面,数值相等的按照VOD业务名称排序;其中,所述的点播界面是指显示VOD业务列表及其附属信息的界面。 Method [0325] wherein, the user directly call traffic demand program listing in the database means VOD service displays a list of information on demand and its subsidiary screen, the user switched up and down by remote control, a program is selected; wherein the VOD service list VOD is sorted according to the display protocol specification two data structures: V0D field service list section (vod_service_list_section O) in the VOD service priority (vod_service_priority) sorting the identified value, the top surface a large value, equal to the value in the VOD service name sorting; wherein said interface means on demand VOD service list display interface and its subsidiary information. 其中,所述的点播界面如图13所示。 Wherein said on-demand interface 13 shown in FIG.

[0326] 在具体实施过程中,所述用遥控器输入业务名称、业务类型、演员名称等信息通过机顶盒端的搜索引擎在点播节目数据库中筛选出用户想要收看节目的方法是指在点播节目搜索界面通过遥控器输入业务名称或业务类型或演员名称在点播节目数据库中筛选节目;其中,所述的点播节目搜索界面如图14所示。 [0326] In a specific implementation, the input with the remote service name, service type, name of the performer on-demand program information database screening method for a user wants to watch a program, set-top box terminal search means search engine demand program screening program database interface input demand program service name or the name of an actor or service type of the remote control; wherein said demand program search screen as shown in FIG. 其中,所述点播节目搜索界面包含三个可供选择的搜索关键字,分别为业务名称、业务类型、演员名称;其中,所述的业务类型可以通过遥控器输入业务类型关键字在点播节目数据库中进行搜索,也可以通过切换遥控器的左右键来选择VOD业务类型;其中,所述的业务类型包括:电影,戏剧,电视剧,新闻,表演、比赛,体育,少儿、青少,音乐,舞蹈,文化、艺术(不含音乐、舞蹈),科学、教育,社会、政治,经济,娱乐及其他。 Wherein said interface comprises a three-demand program search to choose search key, respectively, service name, service type, name of the actor; wherein said service type may enter the service type keyword demand programs through the remote database in search, you can also select the type of VOD services by switching the left and right keys on the remote control; wherein the type of business include: film, theater, drama, news, shows, games, sports, children's, youth, music, dance , culture, arts (excluding music, dance), scientific, educational, social, political, economic, and other entertainment. 其中,所述搜索引擎在点播节目数据库中筛选出用户想要收看的节目后,会在点播界面上显示相应的信息,包括VOD业务名称及其附属信息;其中,所述搜索引擎在点播节目数据库中找不到用户想要收看的节目,会有相应的提示。 After which, the search engines filter out the user wants to watch the program in the Archive database will display the appropriate information, including the name of its subsidiary VOD service information on-demand interface; wherein the search engine in the Archive Database the program can not find a user wants to watch, there will be a corresponding prompt.

[0327] 在具体实施过程中,所述的点播界面显示的VOD业务列表及其附属信息是指VOD业务名称和当如选中的VOD业务的相关彳目息;其中,所述的当如选中的VOD业务的相关彳目息包括图片或音视频片段、业务名称或业务分段号、时长或分段时长、演员名称、价格信息;其中,所述的图片或音视频片段用于给出和VOD业务相关的图片介绍或精彩音视频片段;其中,所述的当前选中的VOD业务的附属信息中既有图片又有音视频片段,在点播界面会优先显示音视频片段;其中,所述业务名称或业务分段号和业务或业务分段的文本描述相关联,当遥控器选中业务名称或业务分段号并按确认键,可以看到VOD业务或VOD业务分段的文本简介;其中,所述的时长或分段时长要看当前选中的VOD业务是否分段;其中,所述的演员名称和演员简介信息相关联,当遥控器选中演员名称 [0327] In a specific embodiment of the process, a list of VOD service demand and the auxiliary information interface display means such as a VOD service name and the selected entry left foot related information when the VOD service; wherein, when said selected as Related information left foot mesh VOD service comprises audio and picture or video clip, the service name or business number segment, when the segment length or longer, actor names, price information; wherein, the picture or audio and video clips for giving VOD business-related pictures or introduce exciting audio and video clips; wherein the auxiliary information about the currently selected VOD service in both pictures have audio and video clips, audio and video clips will be given preference in the on-demand interface; wherein the service name business or service or service fragment number and a textual description of the associated segment, when the remote controller to select the service name or business segment number and press the enter key, see the text VOD service or a VOD service profile segments; wherein the is longer duration depends on the currently selected segment or segments when said VOD service; wherein the actor and actress names associated with the profile information, when the remote controller to select the name of an actor 并按确认键,可以看到演员简介信息;其中,所述的演员名称可以有多个;其中,所述的价格信息给出当前VOD业务的价格相关信息。 And press the Enter key, you can see Cast profile information; wherein the actors can have multiple names; wherein the price information given information about the current price VOD service. 其中,所述VOD业务列表中的业务名称和VOD服务器IP地址以及备用VOD服务器IP地址相关联,为节目的点播提供相关信息。 Wherein the VOD service list, service name, and the IP address of the VOD server and a backup server IP address associated with VOD, provide relevant information to on-demand program.

[0328] (4)确认节目点播并发送点播请求:用户确认节目点播,机顶盒端向VOD服务器发出点播请求。 [0328] (4) to confirm the program on demand and on-demand request transmitted: program requesting the user to confirm, on-demand request end sends the set top box to the VOD server.

[0329] 用户在点播界面选中想看的节目后,机顶盒端向VOD服务器发送点播请求;其中,所述用户选中的节目和一个VOD服务器IP地址以及备用VOD服务器IP地址相关联;其中,所述的VOD服务器是指和用户选中节目相关联的VOD服务器IP地址所唯一标识的VOD服务器;其中,所述的VOD服务器不可用时,所述备用VOD服务器IP地址开始启用;其中,所述的点播请求包括用户选中的VOD业务以及用户机顶盒的相关信息;其中,所述的用户机顶盒的相关信息是指智能卡号、序列号等信息。 After the [0329] user selects the desired program on demand in the interface, the set top box to the VOD server transmitting end requests on demand; wherein said user selected program in a VOD server and the IP address of the VOD server and a backup IP address; wherein said the VOD server means and the user selects the VOD server program associated with the VOD server IP address uniquely identified; wherein the VOD server is unavailable, the IP address of the VOD server start standby is enabled; wherein said demand request including information about a user selected VOD service and a user set-top boxes; wherein said related information is information the user set-top box smart card and a serial number.

[0330] (5)前端VOD服务器下发点播参数并播发点播节目:V0D服务器响应点播请求,向机顶盒端下发VOD业务频点等相关参数信息,并且播发用户点播的节目。 [0330] Hair (5) the front end of the VOD server and VOD broadcast demand programming parameters: V0D server in response to demand request, the set top box to the VOD service related parameters of frequency information delivered by peers, and broadcast programs requested by the user.

[0331] 所述VOD服务器接收到用户发送的点播请求后,根据获取的用户机顶盒的相关信息进行鉴权,鉴权成功,所述VOD服务器向机顶盒端下发VOD业务频点等相关参数信息,并且播发用户点播的节目,同时向前端用户管理系统发送计费相关信息。 After [0331] The VOD server receives a VOD request sent by the user, for authentication, the authentication success information according to the acquired user's set-top box, the set-top box to the VOD server side information issued VOD service related parameters like frequency, and broadcast program requested by the user, and transmits billing information to the user management system front end.

[0332] (6)机顶盒端获取点播参数并进行节目播放:机顶盒端根据VOD服务器下发的点播参数获取频点、业务标识符、PID等信息,并且根据这些信息进行节目播放处理。 [0332] (6) set-top boxes and clients to obtain on-demand program broadcast parameters: obtaining a set top box end frequency delivered by the VOD server according to the demand parameters, service identifier, information such as the PID, and performs playback processing in accordance with the program information.

[0333] 图15示出了本发明实施例提供的数字电视节目的播放方法的流程。 [0333] FIG. 15 shows a flow playing method provided by the digital TV embodiment of the present invention.

[0334] 在步骤S1501中,提供服务器以及至少一个数字电视接收终端; [0334] In step S1501, the server, and providing at least one digital television receiving terminal;

[0335] 在步骤S1502中,所述服务器,预先设置VOD协议规范,并按照VOD协议规范将VOD业务列表及其附属信息通过广播的方式发送至所述数字电视接收终端; [0335] In step S1502, the server previously set protocol specification VOD, VOD service list specification and its subsidiary information to the digital television receiving terminal in a broadcast manner as VOD protocol;

[0336] 在步骤S1503中,所述数字电视接收终端,预先设置VOD协议规范,并按照VOD协议规范将所述服务器发送的VOD业务列表及其附属信息存储至点播节目数据库; [0336] In step S1503, the digital television receiving terminal, VOD protocol specification is set in advance, and the service list sent from the VOD server and the attached information stored in the database in accordance with the demand program VOD protocol specification;

[0337] 在步骤S1504中,所述数字电视接收终端,根据用户输入的匹配标识在所述点播节目数据库中匹配相关的节目并显示给用户;以及,接收用户的节目点播请求; [0337] In step S1504, the digital television receiving terminal, a program matching the associated database according to the demand program match the user ID entered and displayed to the user; and, receiving a user request to a program on-demand;

[0338] 在步骤S1505中,所述数字电视接收终端,接收用户的节目点播请求,根据所述节目点播请求从所述服务器获取电视节目播放给用户。 [0338] In step S1505, the digital television receiving terminal, the requesting user receives the program on demand, and requests the user to acquire TV program broadcast from the server according to the program on demand.

[0339] 其中,所述数字电视接收终端根据用户的匹配标识在所述点播节目数据库中匹配相关的节目并显示给用户时,包括: When [0339] wherein, according to the digital television receiving terminal user matches the associated program identification match demand program in the database and displayed to a user, comprising:

[0340] 将所述VOD业务列表及其附属信息显示给用户,由用户根据所述VOD业务列表及其附属信息选择节目;以及[0341] 直接接收用户输入的匹配标识在所述点播节目数据库中匹配相关的节目。 [0340] VOD service list and the subsidiary information displayed to the user, by the user according to the service list and its subsidiary VOD program selection information; and a matching identifier [0341] Direct receiving a user input in the on-demand program database match-related programs.

[0342] 其中,在所述VOD协议规范下,在所述服务器和所述数字电视接收终端之间传输的数据流的数据结构包括链接描述符、VOD业务列表段、VOD业务信息段、价格参考描述符、图片数据段以及音视频片段插入信息。 [0342] wherein, in the VOD protocol specification, between the server and the digital television receiving terminal data structure of the data stream transmission includes a linkage descriptor, VOD service list segment, segment VOD service information, price reference descriptor, audio and video image data segments, and clip insertion information.

[0343] 其中,所述数字电视接收终端从数据流中获取VOD业务列表及其附属信息时,包括以下步骤: When [0343] wherein, the digital television receiving terminal acquires its subsidiary VOD service list information from the data stream, comprising the steps of:

[0344] 解析并接收VOD业务列表段,获取VOD业务列表以及所述服务器的地址信息; [0344] VOD service list received and parsed segment to acquire a list of VOD service and the server address information;

[0345] 解析并接收VOD业务信息段,获取VOD业务的相关信息; [0345] VOD service information is parsed and receiving section, obtain information VOD service;

[0346] 解析并接收价格参考描述符,获取业务付费方式、价格相关信息; [0346] Rate and receiving parsed descriptors, obtaining payment service, price-related information;

[0347] 解析并接收图片数据段,获取相应的图片数据; [0347] Analytical data reception section and acquires the corresponding image data;

[0348] 解析并接收音视频片段插入信息,存储VOD业务信息段中音视频片段插入信息所关联的音视频片段业务。 [0348] Analytical and receiving audio and video clips insertion information, VOD service information storing section inserted into the video and audio clips associated with the audio and video clip of traffic information.

[0349] 其中,所述方法还包括以下步骤: [0349] wherein said method further comprises the steps of:

[0350] 所述数字电视接收终端,从数据流中获取VOD业务列表版本号,将获取的VOD业务列表版本号与存储于所述点播节目数据库中的VOD业务列表版本号进行对比,若不一致,则对所述VOD业务列表进行更新。 [0350] The digital television receiving terminal, VOD service list version number acquired from the data stream, VOD service list acquired version number stored in the on-demand program in a VOD service list database version numbers are compared, if not, then the VOD service list is updated.

[0351] 图16示出了本发明实施例提供的数字电视接收终端的结构。 [0351] FIG. 16 shows a configuration example of the present invention to provide a digital television receiving terminal of FIG.

[0352] 存储模块1601,用于预先存储VOD协议规范,并按照VOD协议规范将所述服务器发送的VOD业务列表及其附属信息存储至点播节目数据库; [0352] a storage module 1601 for storing in advance VOD protocol specification, and the service list sent from the VOD server and its subsidiary information stored in the database in accordance with the demand program VOD protocol specification;

[0353] 显示模块1602,用于根据用户输入的匹配标识在所述点播节目数据库中匹配相关的节目并显示给用户; [0353] Display module 1602, for matching said associated program on-demand program match the user input database according to the user's identity and;

[0354] 播放模块1603,用于接收用户的节目点播请求,根据所述节目点播请求从所述服务器获取电视节目播放给用户。 [0354] a playing module 1603, a program for receiving user demand request, obtain a user request to play a television program from said program server according to the demand.

[0355] 其中,所述数字电视接收终端还包括: [0355] wherein, the digital television receiving terminal further comprises:

[0356] 匹配模块1604,用于接收用户输入的匹配标识在所述点播节目数据库中匹配相关的节目。 [0356] The matching module 1604, configured to receive a user input matches the associated program identification match demand program in the database.

[0357] 其中,在所述VOD协议规范下,在所述服务器和所述数字电视接收终端之间传输的数据流的数据结构包括链接描述符、VOD业务列表段、VOD业务信息段、价格参考描述符、图片数据段以及音视频片段插入信息。 [0357] wherein, in the VOD protocol specification, between the server and the digital television receiving terminal data structure of the data stream transmission includes a linkage descriptor, VOD service list segment, segment VOD service information, price reference descriptor, audio and video image data segments, and clip insertion information.

[0358] 其中,所述数字电视接收终端,还包括: [0358] wherein, the digital television receiving terminal, further comprising:

[0359] 获取模块1605,用于解析并接收VOD业务列表段,获取VOD业务列表以及所述服务器的地址信息;解析并接收VOD业务信息段,获取VOD业务相关信息;解析并接收价格参考描述符,获取业务付费方式、价格相关信息;解析并接收图片数据段,获取相应的图片数据;解析并接收音视频片段插入信息,存储VOD业务信息段中音视频片段插入信息所关联的音视频片段业务。 [0359] obtaining module 1605, configured to parse and receiving section VOD service list, acquiring the list of VOD service server address information; and parses the received information segment VOD service, VOD service-related information acquired; parse and receiving descriptor Rate to obtain a service payment method, price-related information; receiving and parsing image data segment corresponding to picture data acquired; parse and receiving audio and video clips inserted fragment associated audio and video information, storing the video and audio segments VOD service information service information fragment was inserted .

[0360] 其中,所述数字电视接收终端,还包括: [0360] wherein, the digital television receiving terminal, further comprising:

[0361 ] 对比模块1606,用于从数据流中获取VOD业务列表版本号,将获取的VOD业务列表版本号与存储于所述点播节目数据库中的VOD业务列表版本号进行对比;若不一致,则控制所述获取模块对所述VOD业务列表进行更新。 [0361] Comparison module 1606, a version number for VOD service list to the on-demand program database VOD service list version number acquired from the data stream, a VOD service list acquired version number stored comparison; and if not, the control module acquires the VOD service list is updated. [0362] 本发明技术方案带来的有益效果: [0362] aspect of the present invention brings advantageous effects:

[0363] 基于以上所述的一种数字电视节目的播放系统及方法、数字电视接收终端和以往视频点播的实现方法和系统相比,至少具有以下有益效果: [0363] Based on the above said one digital television program broadcast system and method, and a conventional digital television receiving terminal implemented method and video on demand systems, has at least the following advantages:

[0364] (I)、前端通过广播的方式主动下发节目列表及其附属信息,并将这些信息存储于机顶盒端的点播节目数据库,用户可以直接在机顶盒端的点播界面看到点播节目列表及其附属信息,打破了以往双向机顶盒获取点播节目列表时需要发送获取点播节目列表的请求,前端服务器通过IP给机顶盒发送点播节目列表及其附属信息,当并发量足够大的时候,传统的方式可能引起网络拥塞。 [0364] (I), by way of broadcasting distal actively delivers its subsidiary program listing information, the set top box stores this information in the database end-demand program, the user can see a list of on-demand program directly from the set top box and its subsidiary demand end interface information, breaking the previous two-way set-top boxes required to send a request to obtain a list of programs on demand when demand program get a list of front-end server sends a list of on-demand programming through its subsidiary information to the IP set-top boxes, when the amount of concurrency is large enough, the traditional approach may cause network congestion. 本发明解决方案解决了网络拥塞的问题。 The inventive solution solves the problem of network congestion.

[0365] (2)、打破了传统VOD服务器被动下发点播节目列表的格局,变被动为主动。 [0365] (2), breaking the passive issued a list of the traditional pattern of on-demand programming VOD server, change from passive to active.

[0366] (3)、在机顶盒端构建点播节目数据库,和传统VOD相比,获取节目列表及其附属信息更加的方便快捷,大大提高了用户体验。 [0366] (3), set-top boxes in the end build-on-demand program database, and compared to traditional VOD, get a list of programs and their subsidiary information more convenient, greatly improving the user experience.

[0367] (4)、和传统VOD相比,提供了一种和VOD业务相关联的音视频片段业务,音视频片段业务用于提供VOD业务中的精彩片段,从而能够更加的吸引观众。 [0367] (4), and compared to conventional VOD provides audio and video clips, and one kind of service associated with the VOD service, audio and video clips to provide service to highlight the VOD service, it is possible to more attract viewers.

[0368] (5)、传统的VOD都需要集成浏览器,浏览器的集成给软件开发带来了复杂性,并且不同的浏览器对不同VOD很难做到兼容,给集成带来了很大的风险。 [0368] (5), traditional VOD requires integrated browser, browser integration to software development brings complexity, and different browsers on different VOD compatible hard to do, to integrate a big risks of. 而本发明提出的解决方案不需要集成浏览器,只需要按照本发明所定义的VOD协议规范数据结构解析传输流(TS)就可以得到VOD列表及其附属信息,从而完成视频点播。 The solution proposed by the present invention does not require an integrated browser, only in the VOD protocol specification defined by the present invention parses the data structure of a transport stream (TS) can be obtained VOD list and auxiliary information, thereby completing the video on demand. 从而使软件集成更加的简便,并且降低了集成带来的风险。 So that a more simple software integration, and reduces the risk of integration brings.

[0369] (6)、本发明所提出的技术方案普适性强,适用于任何信道编码方式的传输系统,包括有线、地面、卫星。 [0369] (6), proposed by the present invention of universal strong, the transmission system is suitable for any channel coding scheme, including cable, terrestrial, satellite.

[0370] (7)、可以提供海量的VOD业务,并且方便用户的查找选择,给用户带来互联网上搜索节目的体验。 [0370] (7), can provide vast amounts of VOD service, easy to find and select the user, giving users a search experience on the Internet program.

[0371] 以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。 [0371] The foregoing is only preferred embodiments of the present invention but are not intended to limit the present invention, any modifications within the spirit and principle of the present invention, equivalent substitutions and improvements should be included in the present within the scope of the invention.

Claims (12)

  1. 1. 一种数字电视节目的播放系统,其特征在于,所述系统包括服务器以及至少一个数字电视接收终端; 其中,所述服务器,预先设置VOD协议规范,并按照VOD协议规范将VOD业务列表及其附属信息通过广播的方式发送至所述数字电视接收终端; 所述数字电视接收终端,预先设置VOD协议规范,按照VOD协议规范将所述服务器发送的VOD业务列表及其附属信息存储至点播节目数据库,在所述VOD协议规范下,在所述服务器和所述数字电视接收终端之间传输的数据流的数据结构包括链接描述符、VOD业务列表段、VOD业务信息段、价格参考描述符、图片数据段以及音视频片段插入信息; 所述数字电视接收终端,还根据用户输入的匹配标识在所述点播节目数据库中匹配相关的节目并显示给用户,以及,接收用户的节目点播请求,根据所述节目点播请求从所述服务器获取 A digital television program broadcasting system, characterized in that the system comprises a server and at least one digital television receiving terminal; wherein the server is set in advance VOD protocol specification and the protocol specifications in the VOD service list and VOD its subsidiary information transmitted by way of broadcasting to the digital television receiving terminal; the digital television receiving terminal, VOD protocol specification is set in advance, VOD service list sent in accordance with the VOD server protocol specification and its appended information stored in on-demand program database, at the VOD protocol specification, between the server and the digital television receiving terminal data structure of the data stream transmission includes a linkage descriptor, VOD service list segment, segment VOD service information, price reference descriptor, audio and video image data segments, and clip insertion information; the digital television receiving terminal further relevant program matching the demand program database according to user input matches the identified and displayed to the user, and a user request receiving program on demand, according to the on-demand program request from said server acquires 视节目播放给用户。 Depending on the program played to the user.
  2. 2.如权利要求I所述的数字电视节目的播放系统,其特征在于,所述数字电视接收终端根据用户的匹配标识在所述点播节目数据库中匹配相关的节目并显示给用户时,包括将所述VOD业务列表及其附属信息显示给用户,由用户根据所述VOD业务列表及其附属信息选择节目;以及直接接收用户输入的匹配标识在所述点播节目数据库中匹配相关的节目。 2. The digital television program broadcasting system according to claim I, wherein the digital television receiving terminal to match the associated program database according to user demand program identifier matches and displayed to a user, comprising the VOD service list and auxiliary information displayed to the user by the user according to the VOD service list and selects a program appended information; identifying matching program related to the database and matches the demand program directly received user input.
  3. 3.如权利要求I所述的数字电视节目的播放系统,其特征在于,所述数字电视接收终端从数据流中获取VOD业务列表及其附属信息时,包括: 解析并接收VOD业务列表段,获取VOD业务列表以及所述服务器的地址信息; 解析并接收VOD业务信息段,获取VOD业务的相关信息; 解析并接收价格参考描述符,获取业务付费方式、价格相关信息; 解析并接收图片数据段,获取相应的图片数据; 解析并接收音视频片段插入信息,存储VOD业务信息段中音视频片段插入信息所关联的音视频片段业务。 I 3. The digital TV broadcast system according to claim, characterized in that the digital television receiving terminal acquires its subsidiary VOD service list information from the data stream, the comprising: receiving and parsing section VOD service list, obtaining address information of the VOD server and a service list; parse and VOD service information receiving section, obtain information of the VOD service; parsing descriptor and receiving a reference price, obtaining payment service, price-related information; receiving and parsing image data segment obtaining respective image data; parse and receiving audio and video clips insertion information, VOD service information storing section inserted into the video and audio clips associated with the audio and video clip of traffic information.
  4. 4.如权利要求I所述的数字电视节目的播放系统,其特征在于,所述数字电视接收终端,还用于从数据流中获取VOD业务列表版本号,将获取的VOD业务列表版本号与存储于所述点播节目数据库中的VOD业务列表版本号进行对比,若不一致,则对所述VOD业务列表进行更新。 I 4. The digital TV broadcast system according to claim, characterized in that the digital television receiving terminal is further configured to obtain a list of VOD service from the data stream, the version number, the version number of the VOD service list acquired demand program stored in the VOD service list database version numbers are compared, and if not, the VOD service list is updated.
  5. 5. 一种数字电视节目的播放方法,其特征在于,所述方法包括: 提供服务器以及至少一个数字电视接收终端; 所述服务器,预先设置VOD协议规范,并按照VOD协议规范将VOD业务列表及其附属信息通过广播的方式发送至所述数字电视接收终端,在所述VOD协议规范下,在所述服务器和所述数字电视接收终端之间传输的数据流的数据结构包括链接描述符、VOD业务列表段、VOD业务信息段、价格参考描述符、图片数据段以及音视频片段插入信息; 所述数字电视接收终端,预先设置VOD协议规范,并按照VOD协议规范将所述服务器发送的VOD业务列表及其附属信息存储至点播节目数据库; 所述数字电视接收终端,根据用户输入的匹配标识在所述点播节目数据库中匹配相关的节目并显示给用户; 所述数字电视接收终端,接收用户的节目点播请求,根据所述节目点播请 A method for playing a digital television program, wherein, said method comprising: providing server and at least one digital television receiving terminal; the server, VOD protocol specification is set in advance, and in accordance with the protocol specification VOD and VOD service list its subsidiary information transmitted by way of broadcasting to the digital television receiving terminal, VOD protocol in the specification, between the server and the digital television receiving terminal data structure of the data stream transmission includes a linkage descriptor, VOD service list section, VOD service information segment, the price reference descriptor, audio and video image data segments, and clip insertion information; the digital television receiving terminal, VOD protocol specification is set in advance, and transmits the VOD server according to a VOD service protocol specification the auxiliary information list and stored in a database on-demand program; the digital television receiving terminal, a program matching the associated database according to the demand program match the user ID entered and displayed to the user; the digital television receiving terminal, the receiving user demand programming request, according to the program on demand 从所述服务器获取电视节目播放给用户。 Gets television programs broadcast from the server to the user.
  6. 6.如权利要求5所述的数字电视节目的播放方法,其特征在于,所述数字电视接收终端根据用户的匹配标识在所述点播节目数据库中匹配相关的节目并显示给用户时,包括: 将所述VOD业务列表及其附属信息显示给用户,由用户根据所述VOD业务列表及其附属信息选择节目;以及直接接收用户输入的匹配标识在所述点播节目数据库中匹配相关的节目。 6. The playback method of the digital TV as claimed in claim, wherein said digital television receiving terminal associated program identifier matching the demand program database and displayed to users based on the matching, comprising: VOD service list and the subsidiary information displayed to the user by the user according to the VOD service list and selects a program appended information; identifying matching program related to the database and matches the demand program directly received user input.
  7. 7.如权利要求5所述的数字电视节目的播放方法,其特征在于,所述数字电视接收终端从数据流中获取VOD业务列表及其附属信息时,包括以下步骤: 解析并接收VOD业务列表段,获取VOD业务列表以及所述服务器的地址信息; 解析并接收VOD业务信息段,获取VOD业务的相关信息; 解析并接收价格参考描述符,获取业务付费方式、价格相关信息; 解析并接收图片数据段,获取相应的图片数据; 解析并接收音视频片段插入信息,存储VOD业务信息段中音视频片段插入信息所关联的音视频片段业务。 7. The method of playing the digital TV as claimed in claim, wherein said digital television receiving terminal acquires its subsidiary VOD service list information from the data stream, comprising the steps of: receiving a VOD service list and parse section, obtaining a list of VOD service and the server address information; parse and VOD service information receiving section, obtain information of the VOD service; parsing descriptor and receiving a reference price, obtaining payment service, price-related information; parse and reception data segment, the corresponding image data acquired; parse and receiving audio and video clips insertion information, VOD service information storing section inserted into the video and audio clips associated with the audio and video clip of traffic information.
  8. 8.如权利要求5所述的数字电视节目的播放方法,其特征在于,所述方法还包括以下步骤: 所述数字电视接收终端,从数据流中获取VOD业务列表版本号,将获取的VOD业务列表版本号与存储于所述点播节目数据库中的VOD业务列表版本号进行对比,若不一致,则对所述VOD业务列表进行更新。 The acquired digital television receiving terminal VOD, VOD service list version number acquired from the data stream: playing method as claimed in claim 5 in a digital television program, characterized in that said method further comprises the steps of service list version number stored in the on-demand program in a VOD service list database version numbers are compared, and if not, the VOD service list is updated.
  9. 9. 一种数字电视接收终端,其特征在于,所述数字电视接收终端包括: 存储模块,用于预先存储VOD协议规范,并按照所述VOD协议规范将服务器发送的VOD业务列表及其附属信息存储至点播节目数据库,在所述VOD协议规范下,在所述服务器和所述数字电视接收终端之间传输的数据流的数据结构包括链接描述符、VOD业务列表段、VOD业务信息段、价格参考描述符、图片数据段以及音视频片段插入信息; 显示模块,用于根据用户输入的匹配标识在所述点播节目数据库中匹配相关的节目并显示给用户; 播放模块,用于接收用户的节目点播请求,根据所述节目点播请求从所述服务器获取电视节目播放给用户。 A digital television receiving terminal, wherein the digital television receiving terminal comprising: a storage module for storing in advance VOD protocol specification, and in accordance with the protocol specification the VOD service list transmitted by the VOD server and its subsidiary information demand program stored in the database, in the VOD protocol specification, between the server and the digital television receiving terminal data structure of the data stream transmission includes a linkage descriptor, VOD service list segment, segment VOD service information, price reference descriptor, and audio and video image data segments fragment was inserted information; and a display module program for matching the demand associated program identifier matches the database according to the user input and display to a user; playing module, for receiving a user program demand request, request acquiring television programs broadcast from the server to the user according to the program on demand.
  10. 10.如权利要求9所述的数字电视接收终端,其特征在于,所述数字电视接收终端还包括: 匹配模块,用于接收用户输入的匹配标识在所述点播节目数据库中匹配相关的节目。 10. The digital television receiving terminal according to claim 9, characterized in that the digital television receiving terminal further comprising: a matching module configured to match the user input receiving the associated program identification match demand program in the database.
  11. 11.如权利要求9所述的数字电视接收终端,其特征在于,所述数字电视接收终端,还包括: 获取模块,用于解析并接收VOD业务列表段,获取VOD业务列表以及所述服务器的地址信息;解析并接收VOD业务信息段,获取VOD业务的相关信息;解析并接收价格参考描述符,获取业务付费方式、价格相关信息;解析并接收图片数据段,获取相应的图片数据;解析并接收音视频片段插入信息,存储VOD业务信息段中音视频片段插入信息所关联的音视频片段业务。 11. The digital television as claimed in claim 9, said receiving terminal, wherein the digital television receiving terminal, further comprising: an obtaining module, configured to parse and receiving a VOD service list section, obtaining a service list, and the VOD server address information; parse and receives VOD service information section for information VOD service; parse and receiving price reference descriptor, obtain the service payment method, price-related information; parse and reception data segment, to obtain the corresponding picture data; parsed and receiving audio and video clips insertion information, VOD service information storing section inserted into the video and audio clips associated with the audio and video clip of traffic information.
  12. 12.如权利要求11所述的数字电视接收终端,其特征在于,所述数字电视接收终端,还包括: 对比模块,用于从数据流中获取VOD业务列表版本号,将获取的VOD业务列表版本号与存储于所述点播节目数据库中的VOD业务列表版本号进行对比;若不一致,则控制所述获取模块对所述VOD业务列表进行更新。 12. The digital television receiving terminal according to claim 11, wherein said digital television receiving terminal, further comprising: a comparison module, configured to obtain a list of VOD service version number from the data stream, the VOD service list acquired compared with the version number stored in the VOD service list version number of the database demand program; if not, the control module acquires the VOD service list is updated.
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