CN101262583B - Recording method, entity and system for media stream - Google Patents

Recording method, entity and system for media stream Download PDF

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Publication number
CN101262583B
CN101262583B CN 200710085955 CN200710085955A CN101262583B CN 101262583 B CN101262583 B CN 101262583B CN 200710085955 CN200710085955 CN 200710085955 CN 200710085955 A CN200710085955 A CN 200710085955A CN 101262583 B CN101262583 B CN 101262583B
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recording
conversion
media stream
user
according
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CN 200710085955
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Chinese (zh)
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CN101262583A (en )
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罗忠
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华为技术有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television, VOD [Video On Demand]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41Structure of client; Structure of client peripherals
    • H04N21/414Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/4147Personal Video Recorder [PVR]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television, VOD [Video On Demand]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/231Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
    • H04N21/23106Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion involving caching operations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television, VOD [Video On Demand]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234Processing of video elementary streams, e.g. splicing of content streams, manipulating MPEG-4 scene graphs
    • H04N21/2343Processing of video elementary streams, e.g. splicing of content streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234363Processing of video elementary streams, e.g. splicing of content streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by altering the spatial resolution, e.g. for clients with a lower screen resolution
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television, VOD [Video On Demand]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/258Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25808Management of client data
    • H04N21/25833Management of client data involving client hardware characteristics, e.g. manufacturer, processing or storage capabilities
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television, VOD [Video On Demand]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/27Server based end-user applications
    • H04N21/274Storing end-user multimedia data in response to end-user request, e.g. network recorder
    • H04N21/2747Remote storage of video programs received via the downstream path, e.g. from the server
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television, VOD [Video On Demand]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47End-user applications
    • H04N21/472End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/47214End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for content reservation or setting reminders; for requesting event notification, e.g. of sport results or stock market
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television, VOD [Video On Demand]
    • H04N21/60Selective content distribution, e.g. interactive television, VOD [Video On Demand] using Network structure or processes specifically adapted for video distribution between server and client or between remote clients; Control signaling specific to video distribution between clients, server and network components, e.g. to video encoder or decoder; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
    • H04N21/65Transmission of management data between client and server
    • H04N21/658Transmission by the client directed to the server
    • H04N21/6581Reference data, e.g. a movie identifier for ordering a movie or a product identifier in a home shopping application

Abstract

The invention relates to the field of communication and discloses a method, an entity and a system for recording a media stream so as to ensure that a network television video can be more efficiently and flexibly recorded. In the invention, a PVR support entity at a network side firstly judges whether the property of the media stream to be recorded is matched with a recording property configured by a customer, if so, the media stream is directly recorded into a network storage space, otherwise, the media stream is recorded into the network storage space after being converted according to the recording property configured by the customer; wherein, the conversion can be the conversion between media formats, the intra-format conversion such as the conversion of bit rate, the conversion of frame rate, the conversion of image resolution ratio and the conversion of the number of color channels, etc., and can also be the intelligent conversion such as the extraction and the recording of the key frame of a scene, the extraction and the recording of an intra-frame coding frame, the extraction and the recording of classified scenes and the extraction and the recording of the relevant scenesof specific figures, etc. The PVR support entity at the network side can be positioned in an internetworking functional entity or a media processing functional entity.

Description

媒体流的录制方法、实体及系统 Method of recording media stream, entities and systems

技术领域 FIELD

[0001] 本发明涉及通信领域,特别涉及媒体流的录制技术。 [0001] The present invention relates to communication field, particularly relates to media stream recording technology. 背景技术 Background technique

[0002] 随着计算机网络的日益发展,基于网络的多媒体传输已经越来越普及,而且人们对多媒体通信内容的要求日益增高,人们不再满足于单一、被动的传统媒体娱乐方式,而真正需要的是个性化、互动化的宽带流媒体娱乐,特别是随着移动通信网络技术的进一步发展,移动多媒体已经越来越显示其未来广泛和日趋成熟的用户认知以及接受度。 [0002] With the development of computer networks, network-based multimedia transmission has become increasingly popular, and people on the content of multimedia communication increasingly higher, people are no longer satisfied with a single, passive, traditional media, entertainment, and really need the personalized, interactive broadband streaming media and entertainment, especially with the further development of mobile communication network technology, mobile multimedia future has increasingly shown its widespread and increasingly sophisticated user awareness and acceptance.

[0003] 多媒体技术是把文字、声音和图像等多种媒体集合成一体的技术。 [0003] Display technology is to other text, sound and images set integrally multiple media technology. 移动通信的发展使得多媒体技术与移动通信的结合也越来越密切,随着第三代移动通信(The Third Generation,简称“3G”)在世界范围内的商用,以及第2. 5代移动通信(2. 5G)在中国的预演,人们日益认识到,以音视频为特色的多媒体业务将成为未来移动通信的核心应用。 Development of mobile communication technology such that the combination of multimedia mobile communications and have increasingly been, as the third generation mobile communication (The Third Generation, referred to as "3G") in the business worldwide, and second generation mobile communications 2.5 (2. 5G) rehearsal in China, the growing recognition that, to audio and video featuring multimedia services will become the core of mobile communications applications. 和移动通信相结合的多媒体即移动多媒体带来了一种全新的交流模式,用户终端也从单纯的通信工具,转变为一种可以随时随地提供内容和服务的全新媒体。 Multimedia and mobile communications that is a combination of mobile multimedia brings a new mode of communication, the user terminal from a simple communication tool into a way to provide content and services anywhere, anytime new media.

[0004] 移动多媒体业务可以分为流媒体(streaming media)、多媒体消息、视频通信等三类。 [0004] The mobile multimedia streaming services can be classified into (streaming media), multimedia messages, video communications and other categories. 其中,流媒体技术是从互联网上发展起来的一种多媒体应用技术。 Among them, the streaming media technology is a multimedia application technology from the Internet together. 所谓流媒体技术是数据从服务器端向客户端以不间断的流方式传送,当第一个数据包到达时就开始播放。 The so-called streaming media data from the server side technology to the client in an uninterrupted streamed, when a first packet arrives to start playing. 流媒体技术不需要下载多媒体文件,因此用户不需要长时间等待。 Streaming media technology do not need to download multimedia files, so users do not need to wait for a long time. 与之相对应的传统方式, 是将多媒体文件下载到用户终端之后才能播放。 In contrast the traditional way that corresponds, is to play the multimedia files after downloaded to the user terminal. 流媒体是一项将通信、Internet等融合到一起新技术,通过流媒体业务能够播放音频以及视频等多媒体内容,也可对其进行点播, 具有交互性,例如基于移动视频业务采用流媒体技术所实现的移动流媒体视频业务。 Is a streaming media communications, the Internet and other new technologies fused together, is capable of playing audio and video multimedia content by streaming media services, but also may be made on demand, interactive, mobile video services, for example, based on streaming media technology realization of mobile streaming video service. 移动流媒体业务的灵活性,以及流媒体启动播放的延时非常短等特性,使得用户能够即时收看收听到移动视频和音频。 Flexibility mobile streaming media services, and streaming media starts playing a very short delay and other features, enabling users to watch and listen to real-time mobile video and audio. 因此流媒体将成为下一代网络(Next Generation Network,简称“NGN”)上的基本的通信形式。 Thus streaming communication form will be substantially on the Next Generation Network (Next Generation Network, referred to as "NGN").

[0005] 流媒体(streaming media)作为一种基本的多媒体通信形式,派生出了众多的多媒体通信业务形式:会议电视/可视电话,网络电视,VOD(点播),即时通信等等。 [0005] streaming media (streaming media) as a basic form of communication media, a large number of derived forms of multimedia communication services: video conference / videophone, Internet television, the VOD (VOD), instant messaging and the like. 尤其是近年来,国内外网络电视业务的快速兴起,流媒体在网络上的应用也在急速发展。 Especially in recent years, the rapid rise of the domestic and international network television business, streaming media applications on the network is also booming.

[0006] 世界各国,尤其是北美和欧洲,以及日韩等发达国家,都已经开始积极推动网络电视相关的标准化活动的开展。 [0006] all over the world, especially in North America and Europe, as well as Japan and South Korea and other developed countries, have begun to actively promote the development of IPTV-related standardization activities. 目前国际电信联盟(InternationalTelecommunication Union,简称“ITU”)已经成立了所谓网络电视特别工作组(IPTVFocus Group)来领导全球的标准制定工作。 Currently the International Telecommunication Union (InternationalTelecommunication Union, referred to as "ITU") has set up so-called network television Task Force (IPTVFocus Group) to lead the global standard-setting work. 在我国国内,也有以中国通信标准化协会(Chinese Communications Standardization Association,简称“CCSA” )为领导的特别工作组来制定国内的相关行业标准。 In our country, but also to China Communications Standards Association (Chinese Communications Standardization Association, referred to as "CCSA") for the task force led to the development of the domestic relevant industry standards. 而北美的通信标准工业协会的网络电视互用性论坛(Alliance of TelecommunicationIndustrial solutions IPTV Interoperation Forum,简禾尔“ATIS IIF”),欧洲的数字电视广播(Digital Video Broadcasting,简称“DVB”)等地区性标准组织也都开展了相关的标准工作。 The North American Communications Industry Association standard network television Interoperability Forum (Alliance of TelecommunicationIndustrial solutions IPTV Interoperation Forum, Jane Wo Er "ATIS IIF"), Europe's digital TV broadcasting (Digital Video Broadcasting, referred to as "DVB") and other regional standards organizations have carried out relevant standard work. [0007] 在网络电视的研究和标准化过程中,网络电视中的一些典型业务受到高度重视。 [0007] In the process of research and standardization in network television, network television some of the typical business are highly valued. 其中一项典型业务是所谓的“个人视频录制” (Personal VideoRecording,简称“PVR”)。 One of the typical business is called "Personal Video Recorder" (Personal VideoRecording, referred to as "PVR"). 就是把来自网络电视的视频/音频内容在网络电视用户终端所连接的本地存储设备上(比如硬盘),或者网络存储空间(需要付费使用)进行存储,以供以后观看或者服务于其它用途。 That is, the video / audio content from the network TV (such as hard disk), or a network storage space (use charge) stored on a local storage device of the network user terminal is connected to the television, for viewing or serve other purposes later. 网络电视用户终端可以是STB (网络机顶盒),也可以是PC机(个人计算机)。 Network TV user terminal may be a STB (set-top box network), it can also be a PC (personal computer).

[0008] 其基本工作原理如图1所示,PVR业务允许用户在观看网络电视节目播出的时候, 根据需要通过遥控器等用户输入和控制设备来选择录制节目中的某个片断,在用户指令的控制下,网络电视用户终端将来自网络电视网络的视频/音频流写入到本地存储设备,进行保存,通常保存的形式为多媒体文件,比如AVI,mpg等。 [0008] The basic working principle shown in Figure 1, the PVR services allow the user while watching a television program broadcast in the network, as needed to select a recorded program fragment via a remote control or the like and a user input device, the user under the control command, the user terminal network TV video from network television network / audio streams are written to the local storage device, save, usually stored in the form of multimedia files, such as AVI, mpg like.

[0009] 当然还可以通过付费使用网上的存储空间,这种存储空间一般也是由网络电视运营商提供的。 [0009] Of course, you can also use the storage space through paid online, this storage space is generally provided by the network TV operators. 如果使用网上存储空间,那么视频/音频流可以从内容源(即流媒体服务器) 直接发送到网上存储设备进行保存。 If online storage, video / audio streams may be sent from the content source (i.e., the streaming media server) directly to the Internet to save the storage device. 当然用户也可以通过设定某些条件,比如定时录制,或者录制某些指定频道等,实现自动的个人视频录制。 Of course, the user can set certain conditions, such as the timing of recording, or recording certain designated channel, etc., the automatic personal video recording.

[0010] 由于网络存储不论从技术还是电信/Internet增值服务的角度来看,发展都是很迅速的。 [0010] As the storage network, whether from the perspective of technology or telecommunications / Internet value-added services, the development is very rapid. 网络存储扩大了个人的存储空间,使得网络电视用户终端可以下载更多的内容而不必担心需要不断升级自己的硬盘,这种消费行为可以导致运营商获得更多的由内容下载和流量增加带来的服务收入。 Expanding the network storage of personal storage space, making the network TV user terminal can download more content without worrying about the need to constantly upgrade their hard drive, this consumer behavior can lead to more operators get increased traffic brought by the content and downloads of service revenue.

[0011] 但是,目前的网络电视业务尚未考虑到许多潜在的应用场景,如高效和个性化录制、有选择地自动智能录制、以及根据用户的使用习惯和其它参数,网络自动学习和自动提供量身定做服务等。 [0011] However, the current Internet TV service not yet take into account the many potential scenarios, such as efficient and personalized recording, selectively intelligent automatic recording, and auto-learning and auto-supply amount according to the user's habits and other parameters, network a tailored service.

[0012] 具体地说,网络电视播出的节目,为了保证观看质量和用户体验,往往采用较高的比特率来编码和发送;另外压缩编码格式可能也是有限的几种,比如MPEG-2/MPEG-4/ H. 264等。 [0012] Specifically, the network broadcast television programs to watch in order to ensure the quality and user experience, often using a higher bit rate encoding and transmitting; additional compression encoding format may also be a limited number, such as MPEG-2 / MPEG-4 / H. 264 and the like. 对于用户来说,就存在两个问题: For users, there are two problems:

[0013] A.无法节省存储开支:高比特率意味着录制同样长度的节目,需要存储空间更大,从而开支更大。 [0013] A. unable to save storage costs: Record high bit rate means the same length of program, need more storage space, thus spending more.

[0014] B.无法实现个性化录制:用户录制的目的往往是在某种媒体播放器上使用,比如MP3,MP4播放器,其上的存储空间有限,并且支持的解码格式也是有限的。 [0014] B. can not be personalized recording: recording destination user is often in use on some sort of media player, such as MP3, MP4 players, limited storage space on it, and decoding format supported is limited. 按照目前的录制方式,无法根据用户设备的能力录制视频节目。 According to the current recording mode, you can not record video programs according to the capabilities of the user equipment.

[0015] 另外,有些用户不一定要录制一个片子的全部,只是需要录制其中的一些精彩镜头,比如一场球中的进球场面,动作电影中的压轴戏等,或者新闻中的和某要人/明星相关的场景等。 [0015] In addition, some users do not have to record all of a movie, but some of them need to record great shots, such as a ball in the goal scenes, action movies in the grand finale, etc., or in the news and a VIP / star and other related scenarios. 而按照目前的录制方式,无法实现这种根据用户的不同喜好,录制节目的最终播放环境,以及节目的属性(体育,动作片,讲课,新闻),对视频节目进行内容选择的智能化录制。 According to the current recording mode, this can not be achieved based on the attributes of different user preferences, and ultimately the environment play recorded programs, and programs (sports, action movies, lectures, news), the video recording program intelligently selected.

[0016] 发明内容 [0016] SUMMARY OF THE INVENTION

[0017] 本发明各实施方式要解决的主要技术问题是提供一种媒体流的录制方法、实体及系统,使得网络电视视频可以被更高效而灵活地录制。 [0017] The embodiments of the present invention is to solve the main technical problem of providing a method for recording media stream, and the system entities, so that the network TV video can be recorded more efficiently and flexibly.

[0018] 为解决上述技术问题,本发明的实施方式提供了一种媒体流的录制方法,包含以下步骤: [0018] To solve the above problems, embodiments of the present invention provides a method of recording media stream, comprising the steps of:

[0019] 如果待录制的媒体流的属性与用户配置的录制属性相匹配,则用于录制媒体流的网络侧实体直接将该媒体流录制到网络存储空间,否则,按录制属性对该媒体流进行转换后再录制到网络存储空间; [0019] If the attribute of the user to be recorded in recording media stream configuration attributes match, then the network entity for the media stream is directly recorded to the recording media stream network storage space, or, according to the properties of the media stream recorded and then convert the recording into the network storage space;

[0020] 其中,对于待录制的视频媒体流,所述按录制属性对所述媒体流进行转换的方式包含:选择并提取部分媒体流的智能转换; [0020] wherein, for the video media stream to be recorded, recording mode according to the attribute of the media stream conversion comprises: selecting and extracting a smart media stream conversion portion;

[0021] 所述视频媒体流的智能转换至少包含以下方式之一:提取和录制场景关键帧、帧内编码帧的提取录制、分类场景的提取录制、特定人物相关场景的提取录制。 The [0021] intelligent conversion video media stream comprises at least one of the following: extracting key frames and scene recorded, recording the extracted intra-coded frame, extracted scene classification record, extracting a specific person recorded relevant scene.

[0022] 本发明的实施方式还提供了一种媒体流录制实体,包含: [0022] Embodiment of the present invention further provides a recording media stream entity, comprising:

[0023] 判断模块,用于判断待录制的媒体流的属性与用户配置的录制属性是否匹配; [0023] determination means for recording a user configuration Properties determined to be recorded matches the media stream;

[0024] 转换模块,用于在判断模块判定待录制的媒体流的属性与用户配置的录制属性不匹配时,按该录制属性对该媒体流进行转换; [0024] The conversion module configured to, when determining module determines Attribute Record configured by the user to be recorded media stream does not match, the recording properties by converting the media stream;

[0025] 录制模块,用于将经转换模块转换后的媒体流录制到网络存储空间,或者,在判断模块判定待录制的媒体流与用户配置的录制属性匹配时,直接将该媒体流录制到网络存储空间; [0025] The recording module, when used for recording by the media attributes match the recorded converted stream conversion module to the network storage space, or, in the determining module determines that the media stream to be recorded with the user's configuration, directly to the media stream recorded network storage space;

[0026] 其中,所述转换模块包含:用于选择并提取部分媒体流的智能转换模块;所述智能转换模块包含:用于提取和录制场景关键帧的场景关键帧提取录制模块、用于进行帧内编码帧的提取录制的帧内编码帧提取录制模块、用于进行分类场景的提取录制的分类场景提取录制模块、用于进行特定人物相关场景的提取录制的特定人物相关场景提取录制模块、和用于在智能转换的方式为至少两种不同方式的组合时,根据处理复杂度,处理过程的信息损失选择最优的提取录制顺序的智能分配组态模块。 [0026] wherein the converting module comprises: means for selecting and extracting the intelligent portion of the media stream conversion module; said intelligent conversion module comprises: means for extracting a scene and the key frame recorded scene key frame extraction recording module, for recording extracted intra-coded frame intra-coded frame extraction recording module configured to record the scene extraction classification to classify a scene recorded extraction module for extracting a particular character recording relevant scene scene extracting a specific character associated recording module, and means for converting the intelligent manner, according to the complexity of the process, the loss of the information processing procedure to select the optimal extracting record allocation procedure of configuring the intelligent module is a combination of at least two different ways.

[0027] 本发明的实施方式还提供了一种媒体流的录制系统,包含根据上文中所述的媒体流录制实体和用于根据来自个人视频录制PVR控制子系统的控制指令得到所述用户配置的录制属性的模块。 [0027] Embodiment of the present invention further provides a system for recording media stream, comprising the above-described recording media stream according to the entity and PVR personal video recording from the control command subsystem to obtain the user profile the module record attributes.

[0028] 本发明各实施方式与现有技术相比,主要区别及其效果在于: [0028] The embodiments of the present invention compared to the prior art, the main differences and effects in that:

[0029] 网络侧实体先判断待录制的媒体流的属性与用户配置的录制属性是否匹配,如果匹配,则直接将该媒体流录制到网络存储空间,否则,按用户配置的录制属性对该媒体流进行转换后录制到网络存储空间。 [0029] The network entity determines to record Properties configured by the user to be recorded media stream match, if match, recording media streams directly to the network storage space, or, according to the user profile attributes recording medium after the converted stream recorded to the storage network. 使得网络电视视频可以被更高效而灵活地录制。 So that the network TV video can be more efficient and flexible recording.

[0030] 比如说,待录制的媒体流的压缩编码格式为MPEG-2,但根据用户配置的录制属性要求压缩编码格式为H.沈4,那么,网络侧实体在将压缩编码格式从MPEG-2转换到H. 264 后,再录制到网络存储空间,减少了录制网络电视节目所需的存储空间,从而达到了高效而灵活地录制网络电视视频的目的,拓宽了当前网络电视中PVR的应用范围,吸引了更多的网络电视用户。 [0030] For example, the media stream to be recorded as a compression encoding format MPEG-2, but the compression encoding format is H. sink 4, the network entity from the MPEG- compressed coding format according to the user configuration record attribute requirements 2 after conversion to H. 264, and then recorded to the network storage space, reducing the required storage space to record TV network, so as to achieve the purpose of efficient and flexible network TV video recording, this broadens the application of a television network PVR range, attracting more network TV users.

[0031] 这种转换可以是媒体流格式间的转换、媒体流格式内的转换如比特率变换、帧率变换、图像分辨率变换、颜色通道数变换等,还可以是智能转换,如提取和录制场景关键帧、帧内编码帧的提取录制、分类场景的提取录制、特定人物相关场景的提取录制等等,提供了更为个性化的录制方式,进一步拓宽了当前网络电视中个人视频录制的应用范围,从而吸引了更多的网络电视用户。 [0031] This conversion may be a format conversion between the media stream, the media stream conversion in the format conversion such as bit rate, frame rate conversion, image resolution conversion, color conversion and other channels, may also be intelligent conversion, such as extraction and recording the scene key frame, intra-coded frames extracted recording, the recording scene-extraction of specific character related scene extracting record, etc., to provide a more personalized way to record, to further expand the current network television, personal video recording applications, in order to attract more network TV users. 由于允许用户按照自己的需要和个性化喜好来录制网络电视节目到网络存储空间,为运营商提供了新的业务类型,从而开辟了新的收入来源。 By allowing users according to their needs and personal preferences to record TV network to network storage space, providing a new type of business for operators, thus opening up new sources of revenue.

[0032] 上述网络侧实体可以位于网络互联功能实体内,如媒体网关内。 [0032] The network entity may be located within a network interworking function entity, such as within the Media Gateway. 由于网络互联功能实体本身就要承担很多媒体处理比如压缩编码格式转化的工作,如支持VoIP(分组语音)应用或者视频通信应用,因此,可以重用网络互联功能实体中多个已有的部分,提高了资源使用效率,降低了整个系统的成本。 Since the network interworking function entity itself must bear a lot of working media processing such as compression encoding format conversion, such as supporting the VoIP (voice packets) application or video communication application, therefore, can be reused a plurality of interconnected functional entities existing network portion, to improve the efficiency of resource use, reducing overall system cost. 而且,由于网络互联功能实体的网络位置很特殊, 位于不同的承载网络之间,当媒体流需要跨越不同的承载网时,必然经过网络互联功能实体,因此,使得该网络侧实体成为媒体流的必经之路。 Further, since the position of the network internetworking function entity is very special, between different bearer networks, when the media stream need to span different bearer networks, interconnected via a network functional entity is bound, therefore, be such that the network entity is a media stream the only way.

[0033] 上述网络侧实体也可以位于媒体处理功能实体内,如媒体资源服务器内。 [0033] The network entity may be located within the media processing function entity, such as the media resource server. 由于媒体处理功能实体本身就要承担很多媒体处理比如压缩编码格式转化的工作,如支持VoIP 应用或者视频通信应用。 Because the media processing function entity itself must bear a lot of media format conversion processing such as compression coding operation, such as to support a VoIP application or video communication application. 因此,可以重用媒体处理功能实体中多个已有的部分,提高了资源使用效率,降低了整个系统的成本。 Accordingly, the media processing function entity can reuse existing in a plurality of portions, to improve the resource use efficiency, reducing cost of the overall system.

[0034] 也就是说,对于设备制造商来说,可以通过在媒体网关或者媒体资源处理等设备类型上开发新的产品,增加新的产品特性,获得利润,从而带来巨大的商机。 [0034] In other words, for equipment manufacturers, it can be developed by media gateway or media resource processing equipment such as new types of products, adding new product features, make a profit, so as to bring huge business opportunities.

[0035] 附图说明 [0035] BRIEF DESCRIPTION OF DRAWINGS

[0036] 图1是根据现有技术的网络电视中PVR业务的基本工作原理示意图; [0036] FIG. 1 is a schematic diagram of the basic principle of the prior art television network PVR service;

[0037] 图2是根据本发明第一实施方式的媒体流的录制方法流程图; [0037] FIG 2 is a flowchart of a method of recording media stream to the first embodiment of the present invention;

[0038] 图3是根据本发明第一实施方式的媒体流的录制方法示意图; [0038] FIG. 3 is a schematic diagram of a method of recording media stream to the first embodiment of the present invention;

[0039] 图4是根据本发明第一实施方式中视频处理的组态示例图; [0039] FIG. 4 is a view of a configuration example of a first embodiment of the present invention, a video processing;

[0040] 图5是根据本发明第二实施方式的媒体流的录制方法示意图; [0040] FIG. 5 is a schematic diagram of a method of recording media stream to a second embodiment of the present invention;

[0041] 图6是根据本发明第三实施方式的媒体流的录制方法示意图; [0041] FIG. 6 is a schematic diagram of a method of recording media stream to a third embodiment of the present invention;

[0042] 图7是根据本发明第四实施方式的媒体流录制实体示意图。 [0042] FIG. 7 is a schematic view of an entity according to the media stream recorded to the fourth embodiment of the present invention.

[0043] 具体实施方式 [0043] DETAILED DESCRIPTION

[0044] 为使本发明的目的、技术方案和优点更加清楚,下面将结合附图对本发明作进一步地详细描述。 [0044] To make the objectives, technical solutions, and advantages of the present invention will become apparent in conjunction with the accompanying drawings below of the present invention will be described in further detail.

[0045] 在本发明的实施方式中,由PVR控制子系统向用于录制媒体流的网络侧实体发送控制指令,该网络侧实体根据收到的控制指令判断待录制的媒体流与用户配置的录制属性是否匹配,如果是,则直接将该媒体流录制到网络存储空间,否则,按录制属性对该媒体流进行转换后录制到网络存储空间。 [0045] In an embodiment of the present invention, the control by the PVR subsystem sends a control command to the network entity for recording the media stream, the network entity is determined to be recorded in accordance with the received control command and user configurable media stream recording attributes match, and if so, direct recording to the media stream network storage space, otherwise, press the record attribute flow to convert the recording media to the network storage space. 其中,对于待录制的视频媒体流,按录制属性对媒体流进行转换的方式至少包含以下之一:媒体格式间转换、媒体格式内转换、选择并提取部分媒体流的智能转换;对于待录制的音频媒体流,按录制属性对媒体流进行转换的方式包含:媒体格式间转换和/或媒体格式内转换。 Wherein, for the video media stream to be recorded, recording mode according to the media stream conversion property comprises at least one of: a format conversion among the media, the media format conversion, selecting and extracting the smart media stream conversion section; to be recorded audio media stream, according to the recording mode converting properties of the media stream comprises: format conversion between the media and / or media format conversion.

[0046] 下面对本发明的第一实施方式进行详细说明,本实施方式涉及媒体流的录制方法,本实施方式中的媒体流为网络电视媒体流,具体流程如图2所示。 [0046] Hereinafter, a first embodiment of the present invention will be described in detail, the present embodiment relates to method of recording media stream, the present embodiment is the media stream network video streaming, the specific procedure shown in FIG.

[0047] 在步骤210中,PVR控制子系统向用于录制媒体流的网络侧实体,也就是PVR支持功能实体,发送控制指令,通知该实体用户配置的录制属性。 [0047] In step 210, control subsystem PVR to a network entity for recording media stream, i.e. PVR support function entity, sends a control instruction to record the attributes of the entity notifies the user configuration. 其中,PVR控制子系统支持以下功能: Which, PVR control subsystem supports the following features:

[0048] A.对于PVR业务进行全面控制和管理。 [0048] A. Full control and management for PVR services.

[0049] B.接收来自网络电视用户终端的请求,并且进行处理。 [0049] B. receiving a request from a user terminal network television, and processed. 用户终端的请求包括如下方面: Requesting user terminal include the following:

[0050] Bi.用户终端请求对于当前播放内容按照输入参数进行录制; . [0050] Bi user terminal a request for the currently played content according to an input parameter record;

[0051] B2.用户终端请求开始录制和结束录制; . [0051] B2 user terminal requests to start and end recording the recording;

[0052] B3用户终端从已经存在于数据库中的服务配置中选择一个一组配置项作为录制属性进行录制; [0052] B3 user terminal selects an item from a set of configuration service profile is already present in the database record as recorded in the attribute;

[0053] C.用户输入新的录制属性,加入到该用户的服务配置中去。 [0053] C. user enters a new recording properties, added to the user's service configuration to go.

[0054] D.从用户的输入中,自动学习分析用户的使用习惯,喜好等,补充完善该用户的服务配置。 [0054] D. from the user's input, the auto-learn to analyze the user's habits, preferences, etc., to supplement and improve the user's service profile.

[0055] E.从用户数据库中提取用户服务配置数据,变成控制指令来控制PVR支持功能实体。 [0055] E. extracted from the user database user service configuration data, into control commands to control PVR support function entity.

[0056] 由于PVR控制子系统需要通过控制指令通知PVR支持功能实体该用户配置的录制属性,因此PVR控制子系统首先需要先获取该用户配置的录制属性。 [0056] Since the need to inform the control subsystem PVR PVR recording properties of the functional entity to support the user's configuration, and therefore control subsystem PVR recording is first attribute of the need to obtain user configuration control command.

[0057] 具体地说,PVR控制子系统先通过以下方式之一获取当前用于录制媒体流的用户配置的录制属性: [0057] Specifically, PVR recording control subsystem to obtain the user attribute for recording media stream currently configured by one of the following:

[0058] 根据该用户的用户终端发送的请求,从用户数据库的PVR服务配置中获取该用户指定的录制属性,作为该用户配置的录制属性; [0058], to obtain the user-specified attributes from the PVR to record the user service profile database of the user according to a request sent by the user terminal, attribute of the user as the recording configuration;

[0059] 从该用户的用户终端发送的请求中获取该用户最新指定的录制属性,作为该用户配置的录制属性; [0059] to obtain the latest specified attribute from the user record of the user requesting user terminal sends, as the attribute of the recorded user configuration;

[0060] 从用户数据库的PVR服务配置中获取同类节目以前录制的属性,作为该用户配置的录制属性; [0060] obtain similar properties previously recorded program from the PVR service configuration user database, as configured by the user to record the property;

[0061] 采用缺省的录制属性为用户配置的录制属性。 [0061] The default user profile attribute record recording properties.

[0062] 简单地说,用户在对于某个特定节目进行录制的时候,可以有三种可能: [0062] Briefly, when the user record for a particular program, there are three possibilities:

[0063] A.用户向PVR控制子系统指定采用其服务配置中的哪些数据项作为录制属性,此时,PVR控制子系统从用户数据库中取出相应的数据,通过控制指令控制PVR支持功能实体进行录制。 [0063] A. PVR user control subsystem to use to specify which data items which service configuration record as attribute this case, the control subsystem PVR fetches the corresponding data from the user database, a control command is performed by the control function entity PVR support recording.

[0064] B.用户向PVR控制系统指定新的录制属性,这种情况下,PVR通过控制指令控制PVR支持功能实体按照用户指定的新的录制属性进行录制。 [0064] B. attributes designated by the user to the PVR to record the new control system, in this case, PVR records in the user-specified new recording attribute control function entity PVR support control command.

[0065] C.用户没有指定任何录制属性,此时,PVR控制子系统首先去用户数据库中找到一个和需要录制节目属性最为匹配数据项(如同类节目以前录制的属性),作为录制属性; 如果是新用户,其用户服务配置为空,则PVR控制子系统采用一组缺省的录制属性,PVR控制子系统通过控制指令控制PVR支持功能实体按照该录制属性进行录制。 [0065] C. user does not specify any record property, this time, PVR control subsystem first user database to find a match and needs of the most recorded program attribute data items (such as similar programs previously recorded attribute), as recording property; if is a new user, the user service configuration which is empty, the control subsystem PVR recording using a default set of attributes, the PVR records in the record control subsystem control property supports PVR function entity control command.

[0066] 在用户数据库的PVR服务配置,可以按以下方式之一或其任意组合保存录制属性: [0066] In the user database PVR service configuration, recording can be saved by one of the following properties or any combination thereof:

[0067] A.根据节目类型保存录制属性:不同节目类型对应的录制属性,这部分数据按照不同节目类型来组织,比如新闻节目有一组录制参数,电影有另外一组录制参数,如: [0067] A. The stored program type recording properties: recording different program corresponding to the type attribute, this part of the data organized in different program types, such as a news program has a set of recording parameters, recording film has another set of parameters, such as:

[0068] 节目类型1 一组录制参数 [0068] Type 1 shows a set of recording parameters

[0069] 节目类型2 —组录制参数 [0069] Program Type 2 - set of recording parameters

[0070] 节目类型N —组录制参数 [0070] Program Type N - recording parameters set

[0071] B.根据特定节目保存录制属性:不同的特定节目对应的录制属性,这部分数据按照不同特定节目来组织。 [0071] B. According to a particular recorded program stored attributes: a particular program corresponding to different recording properties, this particular program in a different part of the data is organized. 这里就要按照特定节目名称来指定录制属性,比如《新闻联播》这个特定节目对应一组录制参数,《动物世界》对应一组另外的录制参数,如: Here we must follow a specific program to specify the name of the recording properties, such as "news" this specific program corresponding to a set of recording parameters, "Animal World" corresponds to a set of additional recording parameters, such as:

[0072] 特定节目1 一组录制参数 [0072] recording a particular program parameter set 1

[0073] 特定节目1 一组录制参数[0074] 特定节目M —组录制参数 [0073] recording a particular program parameter set 1 [0074] a particular program M - set of recording parameters

[0075] C.根据条件选择保存录制属性:这部分数据按照不同组合条件来组织不同参数, 组合条件可以任意定义,采用逻辑运算符号如AND,OR, NOT等来组合(比如说,组合条件1 =动作片AND国外电影AND片长小于150分钟),如: [0075] C. The conditions are selected to save the recording properties: This part of the data in different tissues of different combinations of condition parameters, any combination of conditions can be defined using the logical operation symbols are as AND, OR, NOT, etc. in combination (for example, a combination of conditions = AND operation plate AND foreign film sheet length less than 150 minutes), such as:

[0076] 组合条件1 一组录制参数 [0076] The combination of a set of recording parameters Condition 1

[0077] 组合条件2 —组录制参数 [0077] The combination of conditions 2 - groups recording parameters

[0078] 组合条件P —组录制参数 [0078] The combination of conditions P - recording parameters set

[0079] 接着,进入步骤220,PVR支持功能实体判断待录制的媒体流与用户配置的录制属性是否匹配。 [0079] Next, the routine proceeds to step 220, PVR support entity determines to be recorded in recording media stream attribute configured by the user matches.

[0080] 具体地说,PVR支持功能实体根据来自PVR控制子系统的控制指令得到用户配置的录制属性后,判断待录制的来自网络电视内容源的播发媒体流的属性是否与用户配置的录制属性相匹配,如果匹配,则进入步骤230,直接将该媒体流录制到网络存储空间,也就是将该媒体流录制到网络存储空间;如果不匹配,则进入步骤对0,PVR支持功能实体按用户配置的录制属性对该媒体流进行转换。 [0080] Specifically, according to the PVR from the solid support PVR control command subsystem configured to obtain user attributes recorded, the recording is determined to be broadcast from the network media attribute stream television content source is configured with a user attribute record match, if match, the process proceeds to step 230, the media stream is directly recorded to the storage network, the media stream is recorded to the network storage space; If not, the process proceeds to step 0, PVR support entity by user configured to record the properties of the media stream conversion. 媒体流在系统中各实体间的走向如图3所示。 In the system to the media stream between the entities shown in FIG.

[0081] 具体地说,在步骤MO中,PVR支持功能实体按用户配置的录制属性对视频的媒体流进行转换的方式包含以下之一或其任意组合:媒体格式间转换、媒体格式内转换、选择并提取部分媒体流的智能转换;对音频的媒体流进行转换的方式包含媒体格式间转换和/或媒体格式内转换。 [0081] Specifically, in step MO, PVR support per-user entity attribute recorded video media stream conversion manner comprising one or any combination of the following: format conversion among the media, the media format conversion, selecting and extracting a smart media stream conversion portion; way audio media stream conversion comprises conversion and / or within the media format conversion between media format. 也就是说,PVR支持功能实体先对该媒体流进行复制,得到一个复制流, 再将该复制流转换到与用户配置的录制属性相匹配的录制流。 That is, the PVR support entity to copy the media stream to obtain a copy stream, and then copy the stream converter configured by the user to match the attributes of the recording recorded stream. 下面先对视频流和音频流的转换进行详细说明。 Following the first video stream and converts the audio stream will be described in detail.

[0082] PVR支持功能实体用于进行媒体格式间转换和媒体格式内转换的基本的功能包括: [0082] PVR support inter-entity for media format conversion and the basic functions of the converting media format comprises:

[0083] A.对于视频流,包括以下属性的转换: [0083] A. For a video stream, including the following conversion:

[0084] Al.压缩编码格式变换,比如从MPEG-2转换到H. 264. [0084] Al. Compression encoding format conversion, such as conversion from MPEG-2 to H. 264.

[0085] A2.比特率变换,或称调整:比如从30721ibps降低到7681ibpS。 . [0085] A2 bit rate conversion, or said adjusted: for example, to be reduced from 30721ibps 7681ibpS.

[0086] A3.帧率变换,或称调整,比如从25fps调整到15fps。 [0086] A3. Converting the frame rate, or said adjustment, such adjustment from 25fps to 15fps.

[0087] A4.图像分辨率变换,或称调整,比如从高清1080i分辨率调整到标清Dl分辨率。 [0087] A4. The image resolution conversion, also known as adjustments, such as adjusting the resolution from 1080i HD to SD Dl resolution.

[0088] A5.颜色通道数变换,或称调整,比如从3个通道降低到一个通道(降低到2个通道虽然没有实际意义,但也在本实施方式的范围内),即从彩色到黑白的变换。 [0088] A5. Converting the color channels, also known as adjustment, such as reduced from three channels into a channel (down to 2 channels, although there is no practical significance, but the embodiment is also within the scope of the present embodiment), i.e., from black and white to color transformation.

[0089] A6.以上任何两种或者多种变换的组合,比如从MPEG-2 30721ibpsl080i高清,变换到H. 264,768kbps, Dl 标清。 [0089] A6. A combination of two or more of any of the above transformation, such as from MPEG-2 30721ibpsl080i HD converted to H. 264,768kbps, Dl SD.

[0090] 如果需要进行的转换为至少两种变换的组合,则PVR支持功能实体根据处理复杂度,处理过程的信息损失选择最优的变换顺序。 [0090] If a conversion is required to transform the combination of at least two, the PVR support function entity according to the complexity of the process, the loss of the information processing procedure of selecting an optimal switching sequence. 比如说,需要先进行压缩格式变换,再进行比特率调整等,那么就要进行组态,组态的原则是把不同的转换按照最优顺序组合起来。 For example, format conversion need to be compressed, then the bit rate adjustments, it should be configured, the configuration principle is to combine different conversion according to the optimal sequence. 所谓最优顺序的意思是,如果涉及到两种以上(包括两种)的转换,哪个在前,哪个在后,可能在处理复杂度,处理过程的信息损失等方面效果不同,那么就要选择效果最好的一种组态。 The so-called optimum order means that, if it comes to more than two (including two kinds) conversion, which front, after which, the effect may differ in the complexity of the process, the loss of information processing and the like, it is necessary to choose the best kind of configuration. 如果先进行压缩格式变换,再进行比特率调整等,则组态的结果如图4所示。 If the first compression format conversion, then the bit rate adjustment, the result of the configuration shown in FIG.

[0091] B.对于音频流,包括以下属性的转换: [0091] B. For the audio stream, including the following conversion:

[0092] Bi.压缩编码格式变换,比如从MPEG AAC转换到MP3。 [0092] Bi. Compression encoding format conversion, such as conversion from MPEG AAC to MP3. [0093] B2.比特率变换,或称调整,比如从U81ibpS降低到321ibps。 [0093] B2. Bit rate conversion, or said adjustments such as to reduce the U81ibpS 321ibps.

[0094] B3.以上任何两种或者多种变换的组合。 [0094] Any combination of two or more conversion and B3. Above.

[0095] 如果需要进行的转换为至少两种变换的组合,则PVR支持功能实体同样需要根据处理复杂度,处理过程的信息损失选择最优的变换顺序。 [0095] If a conversion is required to transform the combination of at least two, the PVR support function entity according to the same processing complexity required, the loss of the information processing procedure of selecting an optimal switching sequence.

[0096] 下面再对智能转换进行详细说明,PVR支持功能实体用于进行智能转换的基本的功能包括: [0096] The following further detailed description of the intelligent conversion, PVR support entity for the basic functions of the intelligent conversion comprising:

[0097] 1.提取和录制场景关键帧:过滤分析播发流的一个复制流(处理复制流是为了保证播发流的实时性),提取其中的每个场景的关键帧(可以设定关键帧占所有帧的比例,比如1/20),只录制关键帧序列。 [0097] 1. The recorded scene and the key frame extraction: filtration analysis of a broadcast stream stream replication (replication process stream in order to ensure the real-time broadcast stream), extracted key frames wherein each scene (which may be accounted for keyframe the proportion of all frames, such as 1/20), recording only the key frame sequence.

[0098] 2.帧内编码帧(即Intra帧或称I帧)的提取录制:过滤分析播发流的一个复制流,提取其中的帧内编码帧进行录制。 [0098] 2. The intra-coded frame (i.e., called Intra frame or I-frame) recording Extraction: filtration analysis of a broadcast stream copy stream, wherein the extracted intra-coded frame recording.

[0099] 3.分类场景的提取录制:过滤分析播发流的一个复制流,提取其中的分类场景, 比如足球射门,动作片的打斗镜头,自然风光等。 Extraction recording [0099] 3. Classification scenarios: filtration analysis of a broadcast stream copy stream, extract the classified scene, such as soccer goal, action movie fight scene, like natural scenery.

[0100] 4.特定人物相关场景的提取录制:过滤分析播发流的一个复制流,提取其中和某个名人相关的内容,比如新闻中的总统出访片断。 [0100] 4. Record extract specific person related scenarios: broadcast stream filtration analysis of a copy stream, and extract the contents of a celebrity-related, such as news clips in the presidential trip.

[0101] 5.以上任何两种或者多种方式的组合。 A combination of two [0101] 5 or any of the above in many ways.

[0102] 同样地,如果需要进行的智能转换为至少两种方式的组合,则PVR支持功能实体需要根据处理复杂度,处理过程的信息损失选择最优的提取录制顺序。 [0102] Similarly, if the intelligent conversion required is a combination of at least two ways, the entities need to support PVR processing complexity, loss of information processing procedure selecting an optimal extraction of recording.

[0103] 接着,进入步骤250,PVR支持功能实体将转换后的录制流保存到网络存储空间, 使得网络电视视频可以被更高效而灵活地录制。 [0103] Next, the routine proceeds to step 250, PVR recording function entity supporting the converted network stream to save storage space, so that the network TV video can be recorded more efficiently and flexibly.

[0104] 由于在本实施方式中,由于允许用户按照自己的需要和个性化喜好来录制网络电视节目到网络存储空间,减少了录制网络电视节目所需的存储空间,从而达到了高效而灵活地录制网络电视视频的目的,拓宽了当前网络电视中PVR的应用范围,吸引了更多的网络电视用户为运营商提供了新的业务类型,从而开辟了新的收入来源。 [0104] Since in the present embodiment, by allowing the user according to their needs and personal preferences to record TV network to the network storage space, reducing the required storage space to record TV network, so as to achieve an efficient and flexible the purpose of recording video network television, broadens the scope of application of the current network TV PVR, which attracted more network TV users with a new type of business for operators, thus opening up new sources of revenue.

[0105] 值得一提的是,PVR支持功能实体是在PVR控制子系统的控制下,实现按用户配置的录制属性对媒体流进行转换后录制到网络存储空间,但PVR控制子系统对于该功能实体的控制可能是直接的,也可能是间接的,即通过居于中间的其它功能实体来进行间接的控制。 [0105] It is worth mentioning that, in the PVR support entity is under the control of PVR control subsystem, implemented by the recording properties of the user of the configuration of recording media stream conversion to the network storage space, but for the PVR function control subsystem the control entity may be direct, or it may be indirect, i.e., to perform indirect control by other functional entities residing in the middle.

[0106] 另外,在现有技术中,录制流和播发流存在以下属性: [0106] Further, in the prior art, and the broadcast stream recorded stream following properties:

[0107] A.对于视频流:媒体压缩编码格式(如H. 264,SMPTE VCl,MPEG-2/MPEG-4等), 比特率(如384kbps, 512kbps, 1024kbps, 3072kbps 等),帧率(如25fps, 3Ofps 等),图像分辨率(如IOSOi高清,Dl标清,CIF等),颜色通道数(如彩色,黑白等); [0107] A. For video streams: media compression encoding format (e.g., H. 264, SMPTE VCl, MPEG-2 / MPEG-4, etc.), bit rate (e.g., 384kbps, 512kbps, 1024kbps, 3072kbps, etc.), frame rate (e.g. 25fps, 3Ofps etc.), image resolution (e.g. HD IOSOi, Dl SD, CIF, etc.), the number of color channels (e.g., color, black and white, etc.);

[0108] B.对于音频流:音频压缩编码格式(如MP-3,MPEG-2/MPEG-4 AAC, OGG Vorbis 等),比特率(如32kbps,64kbps,128kbps, 192kbps 等)。 [0108] B. For Audio Stream: audio compression encoding format (e.g., MP-3, MPEG-2 / MPEG-4 AAC, OGG Vorbis etc.), bit rate (e.g., 32kbps, 64kbps, 128kbps, 192kbps, etc.).

[0109] 也就是说,目前录制流和播发流存在的属性是相同的,但是在本实施方式中,这两种流可以具有不同属性。 [0109] That is, the current broadcast stream and recording the stream attributes are present in the same, but in the present embodiment, the two streams may have different properties. 因为播发流是由内容源发出的,服务千万用户的,不可能照顾到每个用户的特殊需求。 Because the broadcast stream is sent by the content source, serving millions of users, it is impossible to take care of the special needs of each user. 而录制流是可以为每个用户“量身定做”的。 The recorded stream can be "tailored" for each user.

[0110] 本发明的第二实施方式涉及媒体流的录制方法,本实施方式是在第一实施方式的基础上,具体应用于网络互联功能实体的方法。 Method [0110] The second embodiment of the present invention relates to a method of recording media stream, the present embodiment is based on the first embodiment, applied to the specific internetworking function entity. [0111] 具体地说,如图5所示,在现有的通信网络中,一般可以分成两个层面:业务控制层和承载层,每个层中都有若干功能实体。 [0111] Specifically, as shown in Figure 5, in the conventional communication networks, generally be divided into two levels: the service control layer and a carrier layer, each layer has a number of functional entities.

[0112] 对于在承载层中,可能涉及两个或者两个以上的承载网络,比如属于两个运营商的承载网络。 [0112] For the carrier layer, it may involve two or more bearer networks, such as belonging to two bearer network operators. 那么在这些不同的承载网络中间,存在网络互联功能实体(Network Interworking Functional Entity)。 So among these different bearer networks, there is a network interworking function entity (Network Interworking Functional Entity). 在实际应用中,可能对应的设备形态是边界媒体网关。 In practice, the device may be a boundary shape corresponding to the media gateway. 在这种情况下,由这个网络互联功能实体来实现PVR支持功能实体的所有功能,也就是说,PVR支持功能实体位于该网络互联功能实体中,网络互联功能实体包含了PVR支持功能实体,做为其一个部分。 In this case, this networking function by the entity to achieve PVR functionality to support all functional entities, that is, an entity located PVR support the networking function entity, the entity networking features include support for PVR function entity to do for a part.

[0113] 由于在原有的通信网络中,网络互联功能实体本来就要承担很多媒体处理比如压缩编码格式转化的工作,如支持VoIP应用或者视频通信应用。 [0113] Since the existing communication network, the network interworking function entity is supposed to bear a lot of working media processing such as compression encoding format conversion, such as to support a VoIP application or video communication application. 因此,通过在网络互联功能实体中实现PVR支持功能实体的所有功能,可以重用网络互联功能实体中多个已有的部分,提高了资源使用效率,降低了整个系统的成本。 Therefore, by implementing all the features supported PVR functional entities in the network interworking function entity, the entity can be reused in multiple networking functions have been part of improving the efficiency of resource use, reducing overall system cost.

[0114] 而且,由于网络互联功能实体的网络位置很特殊,位于不同的承载网络之间,当播发流需要跨越不同的承载网时,必然经过网络互联功能实体。 [0114] Further, since the position of the network internetworking function entity is very special, between different bearer networks, broadcast stream when required across different bearer networks, interconnected via a network functional entity is bound. 因此,使得PVR支持功能实体成为播发媒体流的必经之路。 Therefore, making the PVR support functional entity to become the only way broadcast media stream.

[0115] 由于在业务控制层中,存在对应的网络互联控制功能实体,负责控制网络互联功能实体。 [0115] Since the service control layer, there is a corresponding interconnection network control function responsible for controlling the networking function entity. 因此,在本实施方式中,PVR控制子系统通过网络互联控制功能实体转发控制指令来间接控制网络互联功能实体,执行各种PVR相关的处理,如图5所示。 Accordingly, in the present embodiment, the control subsystem PVR control function entity forwards control instructions to indirectly control the interconnection network function entity, performs various processing related to PVR, interconnected via a network as shown in FIG.

[0116] 本发明的第三实施方式涉及媒体流的录制方法,本实施方式是在第一实施方式的基础上,具体应用于媒体处理功能实体的方法。 [0116] The third embodiment of the present invention relates to a method of recording media stream, the present embodiment is based on the first embodiment, the method is applied to the specific media processing function entity.

[0117] 具体地说,如图6所示,在现有的通信网络中,一般可以分成两个层面:业务控制层和承载层,每个层中都有若干功能实体。 [0117] Specifically, as shown in FIG. 6, in the conventional communication networks can generally be divided into two levels: the service control layer and a carrier layer, each layer has a number of functional entities.

[0118] 媒体处理功能实体是承载层中的一个功能实体,其主要功能是进行各种媒体相关的处理,可能包括:媒体压缩编码格式变换,语音识别,语音合成,视频流复合(在多方会议中形成多画面),媒体增强处理等。 [0118] The media processing function entity is an entity carrying a functional layer, its main function is related to various media processing may include: a media compression encoding format conversion, speech recognition, speech synthesis, composite video stream (in the multi-party conference forming a multi-screen), and other media enhancement processing. 在实际应用中,可能对应的设备形态是媒体资源服务器。 In practice, the device may form corresponds to the media resource server. 在这种情况下,由这个媒体处理功能实体来实现PVR支持功能实体的所有功能,也就是说, PVR支持功能实体位于该媒体处理功能实体中,媒体处理功能实体包含了PVR支持功能实体,做为其一个部分。 In this case, the media processing functions from the entity to achieve PVR functionality to support all functional entities, that is, PVR support functional entity located in the media processing function entity, the media processing function entity includes PVR support entities do for a part.

[0119] 由于在原有的通信网络中,媒体处理功能实体本来就要承担很多媒体处理比如压缩编码格式转化的工作,如支持VoIP应用或者视频通信应用。 [0119] Since the existing communication network, the media processing function entity is supposed to bear a lot of media format conversion processing such as compression coding operation, such as to support a VoIP application or video communication application. 因此,通过在媒体处理功能实体中实现PVR支持功能实体的所有功能,可以重用媒体处理功能实体中多个已有的部分,提高了资源使用效率,降低了整个系统的成本。 Therefore, by implementing all the features of PVR support entity in the media processing function entity, you can reuse the media processing entity has more than part of improving the efficiency of resource use, reducing overall system cost.

[0120] 由于在业务控制层中,存在对应的媒体资源控制功能实体,负责控制媒体处理功能实体。 [0120] Since the service control layer, there is a corresponding media resource control function entity responsible for controlling the media processing function entity. 因此,在本实施方式中,PVR控制子系统通过网络媒体资源控制功能实体转发控制指令来间接控制媒体处理功能实体,执行各种PVR相关的处理,如图6所示。 Accordingly, in the present embodiment, the control subsystem PVR forwarding control command via the network media resource control function entity to indirectly control the media processing function entity, performs various processing related to PVR, as shown in FIG.

[0121] 本发明的第四实施方式涉及媒体流录制实体,如图7所示,包含:判断模块,用于判断待录制的媒体流与用户配置的录制属性是否匹配;转换模块,用于在该判断模块判定待录制的媒体流的属性与用户配置的录制属性不匹配时,按该录制属性对该媒体流进行转换。 [0121] The fourth embodiment of the present invention relates to recording media streams entity, shown in Figure 7, comprising: determination means for determining properties of recording media to be recorded with the stream matches the user configuration; converting module, configured to properties when recording the user configuration determining module determines to be recorded media stream does not match, according to the property of the recording media stream conversion. 转换模块中进一步包含:用于对视频流进行转换的视频转换模块、用于对音频流进行转换的音频转换模块、和用于选择部分媒体流的智能转换模块。 Converting module further comprises: a video conversion module converting a video stream, audio stream for converting audio conversion module, and a conversion module for selecting the intelligent portion of the media stream. 下面分别对视频转换模块、音频转换模块、和智能转换模块进行具体说明。 Next, the video conversion module, an audio conversion module, a conversion module and a smart were specifically described.

[0122] 视频转换模块进一步包含:用于进行视频压缩编码格式变换的视频压缩编码格式变换模块、用于进行比特率变换的视频比特率调整模块、用于进行帧率变换的视频帧率调整模块、用于进行图像分辨率变换的图像分辨率调整模块、用于进行颜色通道数变换的颜色通道调整模块、和用于在视频流的转换为至少两种变换的组合时,根据处理复杂度,处理过程的信息损失选择最优变换顺序的视频分配和组态模块。 [0122] Video conversion module further comprises: means for adjusting video frame rate video compression format converting module video compression format converting module for converting a bit rate video adjustment module for performing the frame rate conversion when the resolution of the image adjustment module for performing image resolution conversion, color channel adjusting means for performing digital conversion of the color channels, and means for converting the video stream is a combination of at least two transform according to the processing complexity, loss of information processing procedure of selecting an optimal transformed video distribution and configuration modules. 该视频分配和组态模块根据来自PVR控制子系统的控制信令中的录制属性,决定对复制的播放媒体流进行何种处理,然后把复制流输入到相应的模块,比如视频压缩编码格式变换模块。 The video distribution and configuration module according to the control signaling from the control subsystem PVR recording property that determines the kind of processing to copy the media stream playing, and the stream is input to copy the appropriate module, such as video compression format converting module. 如果需要进行组合处理,比如先进行压缩格式变换,再进行比特率调整等,那么就要进行组态,组态的原则是把不同模块按照最优顺序组合起来。 If required the combination process, such as the first compression format conversion, then the bit rate adjustment, it is necessary to configure the principle configuration of the different modules are combined according to the optimal sequence. 所谓最优顺序的意思是,如果组合涉及两个模块,哪个在前,哪个在后,可能在处理复杂度,处理过程的信息损失等方面效果不同,那么就要选择效果最好的一种组态。 The so-called optimum order means that, if the combination involves two modules, which front, after which, the effect may differ in the complexity of the process, the loss of information processing and the like, it is necessary to choose the best one of the group of state.

[0123] 音频转换模块进一步包含:用于进行音频压缩编码格式变换的音频压缩编码格式变换模块、用于进行比特率变换的音频比特率调整模块、和用于在音频流的转换为两种或多种变换的组合时,根据处理复杂度,处理过程的信息损失选择最优变换顺序的音频分配和组态模块。 [0123] The audio conversion module further comprises: means for encoding audio compression format converting audio compression encoding format conversion module for converting a bit rate audio adjustment module, and means for converting the audio stream of two or when various combinations of transformation, according to the complexity of the process, the loss of the information processing procedure of selecting optimal transformation audio distribution and configuration modules. 该音频分配和组态模块根据来自PVR控制子系统的控制信令中的录制属性, 决定对复制的播放媒体流进行何种处理,然后把复制流输入到相应的模块,比如压缩编码格式变换模块。 The audio distribution and configuration module according to the control signaling from the control subsystem PVR recording property that determines the kind of processing to copy the media stream playing, and the stream is input to copy the appropriate module, such as compression encoding format converting module . 如果需要进行组合处理,比如先进行压缩格式变换,再进行比特率调整等, 那么就要进行组态,组态的原则是把不同模块按照最优顺序组合起来。 If required the combination process, such as the first compression format conversion, then the bit rate adjustment, it is necessary to configure the principle configuration of the different modules are combined according to the optimal sequence. 所谓最优顺序的意思是,如果组合涉及两个模块,哪个在前,哪个在后,可能在处理复杂度,处理过程的信息损失等方面效果不同,那么就要选择效果最好的一种组态。 The so-called optimum order means that, if the combination involves two modules, which front, after which, the effect may differ in the complexity of the process, the loss of information processing and the like, it is necessary to choose the best one of the group of state.

[0124] 智能转换模块进一步包含:用于提取和录制场景关键帧的场景关键帧提取录制模块、用于进行帧内编码帧的提取录制的帧内编码帧提取录制模块、用于进行分类场景的提取录制的分类场景提取录制模块、用于进行特定人物相关场景的提取录制的特定人物相关场景提取录制模块、和用于在智能转换的方式为至少两种方式的组合时,根据处理复杂度, 处理过程的信息损失选择最优的提取录制顺序的智能分配组态模块。 [0124] intelligent conversion module further comprises: means for extracting the key frames and scene recorded scene key frame extraction recording module, for intra-coded frames extracted intra-coded frame extraction record recording module configured to classify a scene when the extracted scene-recorded record extraction means for extracting a particular character record related to the particular scene related scene extracting character recording module, and means for conversion of the smart combination of at least two ways, according to the complexity of the process, loss of information processing in order to select the optimal extraction recording of intelligent distribution configuration module. 同样地,该智能分配组态模块根据来自PVR控制子系统的控制信令中的录制属性,决定对复制的播发媒体流进行何种处理,然后把复制流输入到相应的模块,如果需要进行组合处理,那么就要进行组态,组态的原则是把不同模块按照最优顺序组合起来。 Similarly, the intelligent distribution module configuration according to the control signaling from a control subsystem PVR recording properties, decide which copy processing of the broadcast media stream, and then the copy stream is input to the corresponding module, if required in combination process, then it would be configured, the configuration principle of the different modules are combined according to the optimal sequence. 所谓最优顺序的意思是,如果组合涉及两个模块,哪个在前,哪个在后,可能在处理复杂度,处理过程的信息损失等方面效果不同,那么就要选择效果最好的一种组态。 The so-called optimum order means that, if the combination involves two modules, which front, after which, the effect may differ in the complexity of the process, the loss of information processing and the like, it is necessary to choose the best one of the group of state.

[0125] 媒体流录制实体需将转换后的与用户配置的录制属性相匹配的录制流保存到网络存储空间,或者,在判断模块判定待录制的媒体流与用户配置的录制属性匹配时,直接将该媒体流录制到网络存储空间,该功能可通过录制模块实现。 When saving the configuration of the user after [0125] the media stream recorded entities need to convert record matching the attribute recorded stream to the network storage space, or it is determined to record attribute matching media stream to the user to be recorded is disposed in a determining module, directly the recording media stream to the network storage space, the functions can be implemented by recording module.

[0126] 本实施方式中的媒体流录制实体即可视为上述各实施方式中的PVR支持功能实体。 [0126] The present embodiment may be regarded as a media stream recorded PVR support entity functional entities described in the above-described embodiments. 由于在本实施方式中,允许用户按照自己的需要和个性化喜好来录制网络电视节目到网络存储空间,减少了录制网络电视节目所需的存储空间,从而达到了高效而灵活地录制网络电视视频的目的,拓宽了当前网络电视中PVR的应用范围,吸引了更多的网络电视用 Since, in this embodiment, allow the user according to their needs and personal preferences to record TV network to the network storage space, reducing the required storage space to record TV network, so as to achieve an efficient and flexible network TV video recording the purpose of broadening the scope of application of the current network TV PVR, which attracted more network TV with

13户为运营商提供了新的业务类型,从而开辟了新的收入来源。 13 provides a new type of business for operators, thus opening up new sources of revenue.

[0127] 媒体流录制实体可以位于网络互联功能实体内,如媒体应用网关内;也可以位于媒体处理功能实体内,如媒体资源服务器内。 [0127] Recording media streams within a network entity may be located within the network function entity, such as a media application gateway; may also be located within the media processing function entity, such as the media resource server. 也就是说,对于设备制造商来说,可以通过在媒体网关或者媒体资源处理等设备类型上开发新的产品,增加新的产品特性,获得利润,从而带来巨大的商机。 That is, for device manufacturers, can develop in the media gateway or media resource processing equipment such as new types of products, adding new product features, make a profit, so as to bring huge business opportunities.

[0128] 本发明的第五实施方式涉及媒体流的录制系统,包含第四实施方式中的媒体流录制实体、PVR控制子系统和用户数据库的PVR服务配置。 [0128] The fifth embodiment of the present invention relates to a recording system of a media stream, comprising a fourth embodiment of the media stream recorded entity, and a user control subsystem PVR database PVR service configuration. 该PVR控制子系统用于对于PVR业务进行控制和管理,并通过控制指令通知媒体流录制实体用户配置的录制属性;该用户数据库的PVR服务配置用于保存用户的录制属性。 The PVR control subsystem for controlling and managing operations for PVR, and notifies the media control command stream recording recorded user attribute entity configured; PVR service the subscriber database for storing user configuration record attributes. 使得网络电视视频可以被更高效而灵活地录制。 So that the network TV video can be more efficient and flexible recording.

[0129] 其中,PVR控制子系统通过以下方式之一获取用户配置的录制属性: [0129] wherein, PVR recording control subsystem acquires user attribute configured by one of the following:

[0130] 根据该用户的用户终端发送的请求,从用户数据库的PVR服务配置中获取该用户指定的录制属性,作为该用户配置的录制属性; [0130], to obtain the user-specified attributes from the PVR to record the user service profile database of the user according to a request sent by the user terminal, attribute of the user as the recording configuration;

[0131] 从该用户的用户终端发送的请求中获取该用户最新指定的录制属性,作为该用户配置的录制属性; [0131] to obtain the latest specified attribute from the user record of the user requesting user terminal sends, as the attribute of the recorded user configuration;

[0132] 从用户数据库的PVR服务配置中获取同类节目以前录制的属性,作为该用户配置的录制属性; [0132] obtain similar properties previously recorded program from the PVR service configuration user database, as configured by the user to record the property;

[0133] 采用缺省的录制属性为用户配置的录制属性。 [0133] The default user profile attribute record recording properties.

[0134] PVR服务配置按以下方式之一或其任意组合保存录制属性:根据节目类型保存录制属性、根据特定节目保存录制属性、根据条件选择保存录制属性。 [0134] PVR services configured in one of the following or any combination save the recording property: The property record stored program type, according to a specific program stored attribute record, according to the recording condition selection storage properties.

[0135] 需要说明的是,PVR控制子系统还用于将用户增加的录制属性保存至PVR服务配置中,并通过对保存的用户的录制属性的分析,完善该用户的录制属性。 [0135] It should be noted, PVR control subsystem is also used to increase the user to save the recording properties of PVR service configuration and analysis of the preservation of the record attributes of users, improve the user's recording properties.

[0136] 虽然通过参照本发明的某些优选实施方式,已经对本发明进行了图示和描述,但本领域的普通技术人员应该明白,可以在形式上和细节上对其作各种改变,而不偏离本发明的精神和范围。 [0136] While the invention has been shown and described with reference to certain preferred embodiments of the present invention, but those of ordinary skill in the art should be understood that various changes may be made thereto in form and details without departing from the spirit and scope of the invention.

Claims (20)

  1. 1. 一种媒体流的录制方法,其特征在于,包含以下步骤:如果待录制的媒体流的属性与用户配置的录制属性相匹配,则用于录制媒体流的网络侧实体直接将该媒体流录制到网络存储空间,否则,按所述录制属性对该媒体流进行转换后再录制到网络存储空间;其中,对于待录制的视频媒体流,所述按录制属性对所述媒体流进行转换的方式包含: 选择并提取部分媒体流的智能转换;所述视频媒体流的智能转换至少包含以下方式之一:提取和录制场景关键帧、帧内编码帧的提取录制、分类场景的提取录制、特定人物相关场景的提取录制。 1. A method of recording media stream, characterized by comprising the steps of: if the attribute of the user to be recorded in recording media stream configuration attributes match, then the network entity for recording the media stream of the media stream directly recording to the network storage space, or, according to the recording properties of the recording media stream and then conversion to the network storage space; wherein, for the video media stream to be recorded, by recording the attribute of the media stream conversion mode comprising: selecting and extracting a smart media stream conversion portion; intelligent converting the video media stream comprises at least one of the following: extracting key frames and scene recorded, recording the extracted intra-coded frame, the extracted recorded scene-specific extracting a person related to the recording scene.
  2. 2.根据权利要求1所述的媒体流的录制方法,其特征在于,对于待录制的视频媒体流,所述按录制属性对所述媒体流进行转换的方式还包含以下之一或其任意组合:媒体格式间转换、媒体格式内转换。 The recording method according to claim 1 media stream, characterized in that, for the video media stream to be recorded, recording mode according to the attribute of the media stream conversion further comprises any one or a combination of : format conversion between the media, in the media format conversion.
  3. 3.根据权利要求1所述的媒体流的录制方法,其特征在于,对于待录制的音频媒体流,所述按录制属性对所述媒体流进行转换的方式包含:媒体格式间转换和/或媒体格式内转换。 The recording method according to claim 1 media stream, characterized in that, for the audio media stream to be recorded, recording mode according to the attribute of the media stream conversion comprising: among the media format conversion and / or within the media format conversion.
  4. 4.根据权利要求2所述的媒体流的录制方法,其特征在于, 所述视频媒体流的媒体格式间转换包含压缩编码格式变换;所述视频媒体流的媒体格式内转换至少包含以下之一:比特率变换、帧率变换、图像分辨率变换、颜色通道数变换。 The method of recording media stream according to claim 2, characterized in that, between the media format conversion the media stream comprises video compression encoding format conversion; within the video media stream media format conversion comprises at least one of the following : bit rate conversion, frame rate conversion, image resolution conversion, color conversion channels.
  5. 5.根据权利要求3所述的媒体流的录制方法,其特征在于, 所述音频媒体流的媒体格式间转换包含压缩编码格式变换; 所述音频媒体流的媒体格式内转换至少包含比特率转换。 The method of recording media stream according to claim 3, characterized in that, between the media format conversion the media stream comprises audio compression encoding format conversion; the media format conversion of the audio media stream comprising at least a bit rate converter .
  6. 6.根据权利要求4或5所述的媒体流的录制方法,其特征在于,如果所述视频媒体流的媒体格式间转换和/或媒体格式内转换为至少两种变换的组合,则所述网络侧实体根据处理复杂度,处理过程的信息损失选择最优的变换顺序;如果所述音频媒体流的媒体格式间转换和/或媒体格式内转换为至少两种变换的组合,则所述网络侧实体根据处理复杂度,处理过程的信息损失选择最优的变换顺序。 The method of recording media stream according to claim 4 or claim 5, wherein the media format conversion and a combination between the media format if the video media stream conversion / transformation or at least two, then the network entity according to the complexity of the process, the loss of the information processing procedure of selecting an optimal switching sequence; and a combination of at least two transformed / or media format conversion between the media format if the audio media stream conversion, then the network the entity processing complexity, loss of information processing procedure of selecting an optimal switching sequence.
  7. 7.根据权利要求4所述的媒体流的录制方法,其特征在于,如果所述智能转换为至少两种方式的组合,则所述网络侧实体根据处理复杂度,处理过程的信息损失选择最优的提取录制顺序。 The recording method according to claim media stream, wherein, if the intelligent conversion processing according to the complexity, processing information to select the most loss is a combination of at least two ways, then the network entity excellent extraction of recording.
  8. 8.根据权利要求1所述的媒体流的录制方法,其特征在于,所述网络侧实体根据来自个人视频录制PVR控制子系统的控制指令得到所述用户配置的录制属性。 8. A method of recording media stream according to claim 1, characterized in that, from the network entity in accordance with PVR Personal Video Recorder control command subsystem to obtain the user attribute record configured.
  9. 9.根据权利要求8所述的媒体流的录制方法,其特征在于,所述PVR控制子系统通过以下方式之一获取所述用户配置的录制属性:根据所述用户的用户终端发送的请求,从用户数据库的PVR服务配置中获取该用户指定的录制属性,作为该用户配置的录制属性;从所述用户的用户终端发送的请求中获取该用户最新指定的录制属性,作为该用户配置的录制属性;从用户数据库的PVR服务配置中获取同类节目以前录制的属性,作为所述用户配置的录制属性;采用缺省的录制属性为所述用户配置的录制属性。 9. A method of recording media stream according to claim 8, characterized in that, the PVR recording control subsystem acquires the user attribute configured by one of the following: a request sent by the terminal user according to the user, PVR user service profile obtained from the database record of the user-specified attributes, the attribute of the user as the recording configuration; Get latest specified attribute from the user record of the user requesting the user terminal transmits, as the user configuration record property; obtaining similar programs from the user database PVR service configuration previously recorded attribute as an attribute of the user configuration record; using default property configuration record to record of the user attributes.
  10. 10.根据权利要求9所述的媒体流的录制方法,其特征在于,所述用户数据库的PVR服务配置按以下方式之一或其任意组合保存录制属性:根据节目类型保存录制属性、根据特定节目保存录制属性、根据条件选择保存录制属性。 10. A method of recording media stream according to claim 9, characterized in that, the PVR service configuration record stored in the user database according to one of the following properties or any combination thereof: According to save the recorded program type attribute, according to the particular program save recording property, choose to save the recording property depending on the conditions.
  11. 11.根据权利要求1至5,7至10中任一项所述的媒体流的录制方法,其特征在于,所述网络侧实体位于网络互联功能实体或媒体处理功能实体内。 11. A method of recording medium 1 to 5, 7 to 10 according to a stream according to claim, wherein said network entity located in a network interworking function entity or a media processing function entity.
  12. 12. —种媒体流录制实体,其特征在于,包含:判断模块,用于判断待录制的媒体流的属性与用户配置的录制属性是否匹配;转换模块,用于在所述判断模块判定所述待录制的媒体流的属性与用户配置的录制属性不匹配时,按该录制属性对该媒体流进行转换;录制模块,用于将经所述转换模块转换后的媒体流录制到网络存储空间,或者,在所述判断模块判定所述待录制的媒体流的属性与用户配置的录制属性匹配时,不需要经过任何转换处理而直接将该媒体流录制到网络存储空间;其中,所述转换模块包含:用于选择并提取部分媒体流的智能转换模块;所述智能转换模块包含:用于提取和录制场景关键帧的场景关键帧提取录制模块、用于进行帧内编码帧的提取录制的帧内编码帧提取录制模块、用于进行分类场景的提取录制的分类场景提取录制模块、用 12. - kind of recording media stream entity, comprising: a determining module, configured to record Properties configured by the user is determined to be recorded media stream matches; conversion module, the judging module determines that the when the recording property of the media to be recorded with the user attribute does not match the configuration of the stream, according to the property of the recording media stream conversion; recording module, to the network for storage by the translating module after recording media stream conversion, Alternatively, when the determination recording attributes match the attributes of the user module determines the media stream to be recorded configuration, the conversion process does not require any media stream is directly recorded to the network storage space; wherein said conversion module comprising: selecting and extracting a portion of the smart media stream conversion module; said intelligent conversion module comprises: means for extracting a scene and the key frame recorded scene key frame extraction recording module, for recording for extracting a frame intra-coded frame intra-coded frame extraction recording module configured to record the scene extraction classification to classify a scene extraction recording module, with 于进行特定人物相关场景的提取录制的特定人物相关场景提取录制模块、和用于在智能转换的方式为至少两种不同方式的组合时,根据处理复杂度,处理过程的信息损失选择最优的提取录制顺序的智能分配组态模块。 Related to the specific person extracted specific person recorded scene scene extracting relevant recording module, and means for converting the embodiment is intelligent combination of at least two different ways, according to the complexity of the process, the loss of information in the process of selecting the optimal record order to extract intelligent distribution configuration module.
  13. 13.根据权利要求12所述的媒体流录制实体,其特征在于,所述转换模块还包含:用于对视频流进行转换的视频转换模块、用于对音频流进行转换的音频转换模块。 13. The recording media stream entity according to claim 12, wherein said conversion module further comprises: a video conversion module converting a video stream, audio stream for converted audio conversion module.
  14. 14.根据权利要求13所述的媒体流录制实体,其特征在于,所述视频转换模块包含:用于进行视频压缩编码格式变换的视频压缩编码格式变换模块、用于进行比特率变换的视频比特率调整模块、用于进行帧率变换的视频帧率调整模块、用于进行图像分辨率变换的图像分辨率调整模块、用于进行颜色通道数变换的颜色通道调整模块、和用于在所述视频流的转换为至少两种不同变换的组合时,根据处理复杂度,处理过程的信息损失选择最优变换顺序的视频分配和组态模块;所述音频转换模块包含:用于进行音频压缩编码格式变换的音频压缩编码格式变换模块、用于进行比特率变换的音频比特率调整模块、和用于在所述音频流的转换为两种不同变换的组合时,根据处理复杂度,处理过程的信息损失选择最优变换顺序的音频分配和组态模块。 14. The entity of the recording media stream according to claim 13, wherein the video conversion module comprises: means for encoding video bit video compression format converting video compression format converting means for converting the bit rate rate adjustment module for adjusting the frame rate conversion module video frame rate, image resolution adjustment module for performing image resolution conversion, color channel for adjusting the color channels conversion module, and for the combination of at least two different transforms, the process according to the complexity, the loss of information processing procedure of selecting an optimal conversion and video distribution module configured to convert a video stream; the audio conversion module comprises: means for audio compression encoder when the audio compressed coding format converting module for converting a bit rate audio adjustment module, and a conversion for the audio stream is a combination of two different transformations, according to the complexity of the process, a process of format conversion process selecting the optimal sequence information loss converting audio distribution and configuration modules.
  15. 15.根据权利要求12所述的媒体流录制实体,其特征在于,所述判断模块根据从来自个人视频录制PVR控制子系统的控制指令中得到的所述用户配置的录制属性,判断待录制的媒体流的属性与用户配置的录制属性是否匹配。 15. A medium according to claim 12, wherein the stream recording entity, wherein said recording property is determined according to the user configuration module obtained from the control instruction from the control subsystem PVR personal video recording, the recording is determined to be property and user configurable media stream recorded attribute matches.
  16. 16.根据权利要求12所述的媒体流录制实体,其特征在于,所述媒体流录制实体位于网络互联功能实体或媒体处理功能实体内。 16. The recording media stream entity according to claim 12, wherein the media stream recorded interworking function entity is located within the network entity or a media processing function entity.
  17. 17. 一种媒体流的录制系统,其特征在于,包含根据权利要求12至16中任一项所述的媒体流录制实体和用于根据来自个人视频录制PVR控制子系统的控制指令得到所述用户配置的录制属性的模块。 17. A system for recording media stream, characterized in that, comprising the media stream recorded entity 12-1 according to any of claims 16 and for obtaining from a PVR personal video recording control according to the control command subsystem module configured by the user to record property.
  18. 18.根据权利要求17所述的媒体流的录制系统,其特征在于,还包含用户数据库的PVR 服务配置,用于保存用户的录制属性,所述PVR控制子系统通过以下方式之一获取所述用户配置的录制属性:根据所述用户的用户终端发送的请求,从所述PVR服务配置中获取该用户指定的录制属性,作为该用户配置的录制属性;从所述用户的用户终端发送的请求中获取该用户最新指定的录制属性,作为该用户配置的录制属性;从所述PVR服务配置中获取同类节目以前录制的属性,作为所述用户配置的录制属性;采用缺省的录制属性为所述用户配置的录制属性。 18. A recording system according to the media stream according to claim 17, characterized in that, further comprising a user database PVR service configuration for storing recorded user attribute acquired by the control subsystem PVR one of the following ways recording user profile properties: according to a request of the user terminal transmitted from the user, acquires the attribute specified by the user from the PVR to record the service configuration, user configuration as the recording properties; request from the user terminal sends a user get the latest specified in the user record attribute, as the recording properties of the user configuration; acquiring properties similar to previously recorded program from the PVR service configuration, as an attribute of the user record configuration; use the default properties for the record recording said user configuration attributes.
  19. 19.根据权利要求18所述的媒体流的录制系统,其特征在于,所述PVR控制子系统还用于将用户增加的录制属性保存至所述PVR服务配置中,并通过对保存的用户的录制属性的分析,完善该用户的录制属性。 19. A recording system according to the media stream according to claim 18, wherein the PVR control subsystem is further configured to increase the user's PVR recording properties are saved to the service configuration, and stored by the user record analysis properties, improve the user's recording properties.
  20. 20.根据权利要求18所述的媒体流的录制系统,其特征在于,所述PVR服务配置按以下方式之一或其任意组合保存录制属性:根据节目类型保存录制属性、根据特定节目保存录制属性、根据条件选择保存录制属性。 20. The recording system according to claim 18 media stream, wherein the PVR service configured in one of the following or any combination save the recording property: The property record stored program type, according to the particular program attribute record stored according to the conditions choose to save the recording property.
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