WO2017041663A1 - 一种视频控制方法及装置 - Google Patents

一种视频控制方法及装置 Download PDF

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Publication number
WO2017041663A1
WO2017041663A1 PCT/CN2016/097766 CN2016097766W WO2017041663A1 WO 2017041663 A1 WO2017041663 A1 WO 2017041663A1 CN 2016097766 W CN2016097766 W CN 2016097766W WO 2017041663 A1 WO2017041663 A1 WO 2017041663A1
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WIPO (PCT)
Prior art keywords
file
index file
cdn node
media file
media
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PCT/CN2016/097766
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English (en)
French (fr)
Inventor
周磊
王奎
郑晓川
王魏强
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中兴通讯股份有限公司
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Publication of WO2017041663A1 publication Critical patent/WO2017041663A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
    • H04N21/23109—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion by placing content in organized collections, e.g. EPG data repository
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/40—Information retrieval; Database structures therefor; File system structures therefor of multimedia data, e.g. slideshows comprising image and additional audio data
    • G06F16/41—Indexing; Data structures therefor; Storage structures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/432—Content retrieval operation from a local storage medium, e.g. hard-disk
    • H04N21/4325—Content retrieval operation from a local storage medium, e.g. hard-disk by playing back content from the storage medium

Definitions

  • the present invention relates to multimedia communication technologies, and more particularly to a video control method and apparatus.
  • OTT is the abbreviation of “Over The Top”. It is a name for Internet TV operators by Internet operators. The full name is OTT TV. The essence is to use a unified content management and distribution platform to provide smart set-top boxes through an open Internet. HD video, games and other multimedia applications.
  • OTT includes two important services: True Video On Demand (TVOD) and Network Personal Video Recorder (NPVR). Among them, when TVOD is recorded, it is recorded separately according to the program, and the TVOD service provided to the user is also served by the program. The NPVR has two modes.
  • TVOD True Video On Demand
  • NPVR Network Personal Video Recorder
  • One mode is that the user triggers personal recording according to the complete program (in this mode, the content of the personal recorded program of all users is the same, hereinafter referred to as NPVR-A mode), and the other mode is It is the user's personal recording of part of the time of the program according to the preference (in this mode, the content of the personal recorded program of all users may be different, hereinafter referred to as NPVR-B mode), and the personal recording is provided to the user when the NPVR service is provided. The content is served for the unit.
  • TVOD and NPVR use separate storage and provide services independently, resulting in occupying a large amount of storage space of the Content Delivery Network (CDN).
  • CDN Content Delivery Network
  • an embodiment of the present invention provides a video control method and apparatus for solving the problem of occupying a large amount of storage space of a CDN.
  • an embodiment of the present invention provides a video control method, including:
  • the content distribution system CDN node acquires a play request sent by the terminal, and the play request is used to request a media file stored in the CDN node in the form of a TV program on demand TVOD and/or a network personal recording NPVR, the play request carrying Channel identification, media file start time, and media file end time;
  • the CDN node Determining, by the CDN node, at least one first index file according to the channel identifier, the media file start time, and the media file end time, where the first index file includes at least: a storage path of the media file;
  • the first index file further includes: a program content start time and a program content end time, a recording success information, and identification information, where the identification information includes any one of the following or a combination thereof: an NPVR identifier or a TVOD logo.
  • the CDN node determines, according to the channel identifier, the media file start time, and the media file end time, the at least one first index file, including:
  • the method before the CDN node obtains the play request sent by the terminal, the method further includes:
  • the media file includes a media fragment file that is recorded under one channel and separated by a duration
  • the CDN node stores the media file and the first index file in a directory corresponding to a channel of the CDN node.
  • the method before the CDN node obtains the play request sent by the terminal, the method further includes:
  • a TVOD recording request carries a channel identifier, a program content start time, and a program content end time;
  • the CDN node Determining, by the CDN node, the first index file according to a channel identifier, a program content start time, and a program content end time;
  • the CDN node identifies the TVOD identifier by the first index file according to the TVOD recording request.
  • the method before the CDN node obtains the play request sent by the terminal, the method further includes:
  • the CDN node receives an NPVR recording request, and the NPVR recording request carries a channel identifier, a start time of the program content, and an end time of the program content;
  • the CDN node Determining, by the CDN node, the first index file according to a channel identifier, a program content start time, and a program content end time;
  • the CDN node identifies the first index file as an NPVR identifier according to the NPVR recording request.
  • the embodiment of the invention further provides a video control device, including:
  • Obtaining a module configured to acquire a play request sent by the terminal, where the play request is used to request a media file stored in the CDN node in the form of a TV program on demand TVOD and/or a network personal recording NPVR, the play request is carried Channel identification, media file start time, and media file end time;
  • the first determining module is configured to determine, according to the channel identifier, the media file start time, and the media file end time, the at least one first index file, where the first index file includes at least: a storage path of the media file;
  • a second determining module configured to determine, according to the at least one first index file, a second index file, where the second index file includes all media of the at least one first index file index Storage path information of the file;
  • a sending module configured to send the second index file to the terminal, so that the terminal acquires the requested media file by using the second index file.
  • the first index file further includes: a program content start time and a program content end time, a recording success information, and identification information, where the identification information includes any one of the following or a combination thereof: an NPVR identifier or a TVOD logo.
  • the first determining module is specifically configured to: determine, by the CDN node, the directory corresponding to the channel identifier indicating channel according to the channel identifier; and the CDN node according to the media file start time and the media At the end time of the file, the at least one first index file in the directory is determined, and the first index file is named after the media file start time and the media file end time.
  • the obtaining module is further configured to: obtain the media file and the first index file according to the original file address, where the media file includes a media fragment file that is recorded under one channel and separated by a duration;
  • the media file and the first index file are stored in a directory corresponding to a channel of the CDN node.
  • the first determining module is further configured to receive a TVOD recording request, where the TVOD recording request carries a channel identifier, a program content start time, and a program content end time; and according to the channel identifier, the program content start time, and the program content end Time, determining the first index file; identifying the TVOD identifier by the first index file according to the TVOD recording request.
  • the first determining module is further configured to receive, by the CDN node, an NPVR recording request, where the NPVR recording request carries a channel identifier, a program content start time, and a program content end time; and according to the channel identifier, the program content start time And determining, by the program content end time, the first index file; and identifying, according to the NPVR recording request, the first index file identifier NPVR.
  • a computer storage medium is further provided, and the computer storage medium may store an execution instruction for executing the video control method in the foregoing embodiment.
  • the embodiment of the present invention includes: the content distribution system CDN node acquires a play request sent by the terminal, where the play request is used to request the TVOD on-demand TVOD form and/or network personal recording stored in the CDN node.
  • the CDN node determining, according to the channel identifier, the media file start time, and the media file end time, At least one first index file, the first index file includes at least: a storage path of the media file; the CDN node determines a second index file according to the at least one first index file, where the second index file includes Storing path information of all media files indexed by at least one first index file; said CDN node transmitting said second index file to said terminal, so that said terminal obtains said request by said second index file Media file.
  • the same playback mode is adopted for TVOD and NPVR, thereby saving the storage space of the CDN.
  • FIG. 1 is a schematic flow chart of an embodiment of a video control method according to the present invention.
  • FIG. 2 is a schematic structural diagram of a directory and an index file according to an embodiment of a video control method according to the present invention
  • FIG. 3 is a schematic flowchart of a second embodiment of a video control method according to the present invention.
  • FIG. 4 is a schematic flowchart of a third embodiment of a video control method according to the present invention.
  • FIG. 5 is a schematic structural diagram of a video control system according to an embodiment of a video control method according to the present invention.
  • FIG. 6 is a schematic structural diagram of an embodiment of a video control apparatus according to the present invention.
  • the video control method provided by the embodiment of the present invention may be specifically applied to a scenario in which a terminal sends a play request to a content delivery network (CDN) node, or a scenario in which a CDN node records a media file.
  • the video control method provided by this embodiment may be implemented by a video control device, and the video control device may be separately configured or set on a CDN node, where the device may be implemented by software/hardware.
  • the video control method and its device are described in detail below.
  • FIG. 1 is a schematic flowchart of a video control method according to an embodiment of the present invention. As shown in FIG. 1 , a video control method according to an embodiment of the present invention includes:
  • Step 101 The content distribution system CDN node acquires a play request sent by the terminal.
  • the play request is used to request a form of True Video On Demand (TVOD) and/or a Network Personal Video Recorder (NPVR) stored in the CDN node.
  • TVOD True Video On Demand
  • NPVR Network Personal Video Recorder
  • a recorded media file the play request carrying a channel identifier, a media file start time, and a media file end time;
  • Step 102 The CDN node determines at least one first index file according to the channel identifier, the media file start time, and the media file end time.
  • the first index file includes at least: a storage path of the media file.
  • the CDN node determines, according to the channel identifier, a directory corresponding to the channel identifier indicating channel; and then, the CDN node determines the directory according to the media file start time and the media file end time.
  • the at least one first index file below, The first index file is named after the media file start time and the media file end time.
  • Step 103 The CDN node determines a second index file according to the at least one first index file.
  • the second index file includes storage path information of all media files of the at least one first index file index.
  • Step 104 The CDN node sends the second index file to the terminal, so that the terminal acquires the requested media file by using the second index file.
  • the first implementation manner is: when the content distribution system CDN node acquires the TVOD play request sent by the terminal, the TVOD play request is used to request a media file stored in the CDN node in the form of an electric TVOD, wherein the TVOD play request carries Channel ID, media file start time, and media file end time.
  • the CDN node determines that the channel identifier indicates a directory corresponding to the channel; then, the CDN node determines, according to the media file start time and the media file end time, the at least the directory A first index file.
  • the media slice path of the first index file located at the start time of the media file and the end time of the media file is read, and a new index file, that is, a second index file is regenerated.
  • the second index file is sent to the terminal, so that the terminal parses the URL of each media fragment file according to the obtained second index file, and further obtains the media file by using the parsed URL to the CDN.
  • the second implementation manner is: when the content distribution system CDN node acquires the NPVR play request sent by the terminal, the NPVR play request is used to request the media file stored in the CDN node in the form of an electrical NPVR, wherein the NPVR play request carries Channel ID, media file start time, and media file end time.
  • the CDN node determines that the channel identifier indicates a directory corresponding to the channel; and then, the CDN node determines, according to the media file start time and the media file end time, the at least the directory.
  • a first index file Then, read the first index file in the media file start time And the media fragment path of the media file end time, regenerate a new index file, that is, the second index file.
  • the second index file is sent to the terminal, so that the terminal parses the URL of each media fragment file according to the obtained second index file, and further obtains the media file by using the parsed URL to the CDN.
  • the content distribution system CDN node acquires a play request sent by the terminal, and the play request is used to request a media file stored in the CDN node in the form of a TV program on demand TVOD and/or a network personal recording NPVR.
  • the play request carries a channel identifier, a media file start time, and a media file end time; the CDN node determines at least one first index file according to the channel identifier, the media file start time, and the media file end time.
  • the first index file includes at least: a storage path of the media file; the CDN node determines a second index file according to the at least one first index file, where the second index file includes the at least one first index
  • the same playback mode is adopted for TVOD and NPVR, thereby saving the storage space of the CDN.
  • the first index file further includes: a program content start time and a program content end time, a recording success information, and an identifier.
  • Information includes any one or a combination of the following: an NPVR identifier or a TVOD identifier.
  • the CDN node before the CDN node obtains the play request sent by the terminal, the CDN node may further include:
  • the media file includes a media fragment file that is recorded under one channel and separated by a duration
  • the CDN node stores the media file and the first index file in a directory corresponding to a channel of the CDN node.
  • the recorded media file is marked with a successful recording in the first index file.
  • FIG. 2 is a schematic structural diagram of a directory and an index file according to an embodiment of a video control method according to the present invention.
  • a plurality of first index files may be included under one channel, for example, channel CHANNEL.
  • FIG. 3 is a schematic flowchart of a second embodiment of a video control method according to the present invention. As shown in FIG. 3, on the basis of the foregoing embodiment, before the CDN node obtains a play request sent by the terminal, the method may further include:
  • Step 301 The CDN node receives the TVOD recording request.
  • the TVOD recording request carries a channel identifier and a start of program content. Time and end time of program content;
  • Step 302 The CDN node determines the first index file according to the channel identifier, the program content start time, and the program content end time.
  • Step 303 The CDN node identifies the TVOD identifier by using the first index file according to the TVOD recording request.
  • the method may further include:
  • Step 401 The CDN node receives the NPVR recording request.
  • the NPVR recording request carries a channel identifier, a program content start time, and a program content end time;
  • Step 402 The CDN node determines the first index file according to the channel identifier, the program content start time, and the program content end time.
  • Step 403 The CDN node identifies the first index file as an NPVR identifier according to the NPVR recording request.
  • FIG. 5 is a schematic structural diagram of a video control system according to an embodiment of a video control method according to the present invention.
  • a channel recording module of a CDN node receives a TVOD program order recording request week of a service management system, and determines a local channel through a storage module. Record the situation and return the recorded result.
  • the channel service module of the CDN node determines the recording status of the local channel through the storage module, returns the recording result, and updates the first index file to mark the media file of the corresponding time period with the NPVR flag.
  • the media file corresponding to the file path that does not include the NPVR flag in the index is deleted, and the file path is also deleted from the index.
  • the associated recording process includes: periodically updating the first cable of the corresponding channel of the source station.
  • the file is indexed, and the latest media fragment file is downloaded to the local storage system according to the obtained first index file, stored in the corresponding channel directory, and the local first index file is generated periodically.
  • the local file index is named according to the time period.
  • the file name can identify that the first index file contains the path of the media fragment file for that period of time, and after a fixed period of time, a new second index file is regenerated.
  • the content of the index also includes the start and end time of the corresponding media file and whether the media shard file is successfully recorded.
  • the determining, by the CDN node, the recording status of the local channel includes: finding a corresponding channel path according to the channel name, finding a corresponding local first index file according to the time period of the TVOD, and finding a media score corresponding to the TVOD time period according to the first index file.
  • the recording status of the slice file includes: finding a corresponding channel path according to the channel name, finding a corresponding local first index file according to the time period of the TVOD, and finding a media score corresponding to the TVOD time period according to the first index file.
  • the process for the service management system to integrate the NPVR request of the user includes: directly returning the recording success for each user's NPVR request.
  • the NPVR recording request of all users is collected and saved in the NPVR request time period allowed by the user, and the time period of the request is combined according to the channel to generate a recording set of all users.
  • FIG. 6 is a schematic structural diagram of an embodiment of a video control apparatus according to the present invention.
  • a video control apparatus includes: an obtaining module 61, a first determining module 62, a second determining module 63, and a sending module 64. among them,
  • the obtaining module 61 is configured to acquire a play request sent by the terminal, where the play request is used to request a media file stored in the CDN node in the form of a TV program on demand TVOD and/or a network personal recording NPVR, the play request Carrying the channel identification, the media file start time, and the media file end time;
  • the first determining module 62 is configured to determine, according to the channel identifier, the media file start time, and the media file end time, at least one first index file, where the first index file includes at least: a storage path of the media file ;
  • the second determining module 63 is configured to determine, according to the at least one first index file, a second index file, where the second index file includes storage path information of all the media files of the at least one first index file index;
  • the sending module 64 is configured to send the second index file to the terminal, so that the end And obtaining, by the second index file, the requested media file.
  • the content distribution system CDN node acquires a play request sent by the terminal, and the play request is used to request a media file stored in the CDN node in the form of a TV program on demand TVOD and/or a network personal recording NPVR.
  • the play request carries a channel identifier, a media file start time, and a media file end time; the CDN node determines at least one first index file according to the channel identifier, the media file start time, and the media file end time.
  • the first index file includes at least: a storage path of the media file; the CDN node determines a second index file according to the at least one first index file, where the second index file includes the at least one first index
  • the same playback mode is adopted for TVOD and NPVR, thereby saving the storage space of the CDN.
  • the first index file further includes: a program content start time and a program content end time, a recording success information, and identification information, where the identification information includes any one of the following or a combination thereof: an NPVR logo or TVOD logo.
  • the first determining module 62 is specifically configured to: the CDN node determines, according to the channel identifier, a directory corresponding to the channel identifier indicating channel; and the CDN node is configured according to the media.
  • the file start time and the media file end time are determined, and the at least one first index file in the directory is determined, and the first index file is named after the media file start time and the media file end time.
  • the acquiring module 61 is further configured to: obtain the media file and the first index file according to the original file address, where the media file includes one recorded under one channel. a media segment file segmented by a duration; storing the media file and the first index file in a directory corresponding to a channel of the CDN node.
  • the first determining module 62 is further configured to receive a TVOD recording request, where the TVOD recording request carries a channel identifier, and the program content begins. Time and program content end time; determining the first index file according to the channel identifier, the program content start time, and the program content end time; and identifying the TVOD identifier by the first index file according to the TVOD recording request.
  • the first determining module 62 is further configured to receive, by the CDN node, an NPVR recording request, where the NPVR recording request carries a channel identifier, a program content start time, and a program content end time. And determining, according to the channel identifier, the program content start time, and the program content end time, the first index file; and identifying, according to the NPVR recording request, the first index file identifier NPVR.
  • Embodiments of the present invention also provide a storage medium.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • the content distribution system CDN node acquires a play request sent by the terminal, and the play request is used to request a media file stored in the CDN node in the form of a TV program on demand TVOD and/or a network personal recording NPVR, and the play request carries the channel identifier and the media.
  • the CDN node determines, according to the channel identifier, the media file start time, and the media file end time, the at least one first index file, where the first index file includes at least: a storage path of the media file;
  • the CDN node determines, according to the at least one first index file, a second index file, where the second index file includes storage path information of all media files of the at least one first index file index.
  • the CDN node sends a second index file to the terminal, so that the terminal obtains the requested media file by using the second index file.
  • the storage medium is further arranged to store program code for performing the following steps:
  • the CDN node determines, according to the channel identifier, a directory corresponding to the channel identifier indicating channel;
  • the CDN node determines the destination according to the media file start time and the media file end time. Recording at least one first index file, the first index file is named after the media file start time and the media file end time.
  • the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • a mobile hard disk e.g., a hard disk
  • magnetic memory e.g., a hard disk
  • the content distribution system CDN node acquires a play request sent by the terminal, and the play request is used to request media stored in the CDN node in the form of TV program on demand TVOD and/or network personal recording NPVR.
  • a file the play request carries a channel identifier, a media file start time, and a media file end time;
  • the CDN node determines at least one first index according to the channel identifier, the media file start time, and the media file end time a file, the first index file includes: a storage path of the media file;
  • the CDN node determines a second index file according to the at least one first index file, where the second index file includes the at least one first Indexing storage path information of all media files indexed by the file; the CDN node transmitting the second index file to the terminal, so that the terminal acquires the requested media file through the second index file.
  • the same playback mode is adopted for TVOD and NPVR, thereby saving the storage space of the CDN.

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Abstract

本发明实施例公开了一种视频控制方法及装置。该方法，包括：内容分发系统CDN节点获取终端发送的播放请求，播放请求用以请求存储在CDN节点的以电视节目点播TVOD形式和/或网络个人录制NPVR形式录制的媒体文件，播放请求携带频道标识、媒体文件开始时间和媒体文件结束时间；CDN节点根据频道标识、媒体文件开始时间和媒体文件结束时间，确定至少一个第一索引文件；CDN节点根据至少一个第一索引文件，确定第二索引文件；CDN节点向终端发送第二索引文件，以使终端通过第二索引文件获取请求的媒体文件。实现了TVOD和NPVR采用相同的播放方式，从而节省了CDN的存储空间。

Description

一种视频控制方法及装置 技术领域
本发明涉及多媒体通信技术，尤指一种视频控制方法及装置。
背景技术
OTT是“Over The Top”的缩写，是国际互联网运营商对互联网电视业务的一种称呼，全称是OTT TV，其本质是利用统一的内容管理与分发平台，通过开放的互联网，向智能机顶盒提供高清的视频、游戏和其他多媒体应用。OTT包括两项重要的业务：电视节目点播(True Video On Demand，简称TVOD)和网络个人录制(Network personal video recorder，简称NPVR)。其中，TVOD录制时按节目为单位单独录制，提供给用户的TVOD服务时也以节目为单位进行服务。而NPVR有两种模式，一种模式是用户触发按照完整的节目进行个人的录制(这种模式下所有用户的个人录制的节目的内容相同，以下简称NPVR-A模式)，另一种模式则是用户按照喜好对节目的部分时间段进行个人的录制(这种模式下所有用户的个人录制的节目的内容可能都不相同，以下简称NPVR-B模式)，提供给用户NPVR服务时以个人录制的内容为单位进行服务。
本领域技术人员在实现TVOD和NPVR的过程中发现，TVOD和NPVR采用分开存储并分别独立提供服务的方式，从而导致占用内容分发系统(Content Delivery Network，简称CDN)大量存储空间。
发明内容
为了解决上述技术问题，本发明实施例提供了一种视频控制方法及装置，用以解决占用CDN大量存储空间的问题。
为了达到本发明目的，本发明实施例提供了一种视频控制方法，包括：
内容分发系统CDN节点获取终端发送的播放请求，所述播放请求用以请求存储在所述CDN节点的以电视节目点播TVOD形式和/或网络个人录制NPVR形式录制的媒体文件，所述播放请求携带频道标识、媒体文件开始时间和媒体文件结束时间；
所述CDN节点根据所述频道标识、所述媒体文件开始时间和所述媒体文件结束时间，确定至少一个第一索引文件，所述第一索引文件至少包括：媒体文件的存储路径；
所述CDN节点根据所述至少一个第一索引文件，确定第二索引文件，所述第二索引文件包括所述至少一个第一索引文件索引的所有媒体文件的存储路径信息；
所述CDN节点向所述终端发送所述第二索引文件，以使所述终端通过所述第二索引文件获取请求的所述媒体文件。
可选的，所述第一索引文件还包括：节目内容开始时间和节目内容结束时间、录制是否成功信息，以及标识信息，所述标识信息包括以下的任意一种或其组合：NPVR标识或TVOD标识。
可选的，所述CDN节点根据所述频道标识、所述媒体文件开始时间和所述媒体文件结束时间，确定至少一个第一索引文件，包括：
所述CDN节点根据所述频道标识，确定所述频道标识指示频道对应的目录；
所述CDN节点根据所述媒体文件开始时间和所述媒体文件结束时间，确定所述目录下的所述至少一个第一索引文件，所述第一索引文件以所述媒体文件开始时间和所述媒体文件结束时间命名。
可选的，所述CDN节点获取终端发送的播放请求之前，还包括：
所述CDN节点根据原文件地址，获取媒体文件和所述第一索引文件，所述媒体文件包括在一频道下录制的以一时长分割的媒体分片文件；
所述CDN节点将所述媒体文件和所述第一索引文件，存储在所述CDN节点的与频道对应的目录下。
可选的，所述CDN节点获取终端发送的播放请求之前，还包括：
所述CDN节点接收TVOD录制请求，所述TVOD录制请求携带频道标识、节目内容开始时间和节目内容结束时间；
所述CDN节点根据频道标识、节目内容开始时间和节目内容结束时间，确定所述第一索引文件；
所述CDN节点根据所述TVOD录制请求，将所述第一索引文件标识TVOD标识。
可选的，所述CDN节点获取终端发送的播放请求之前，还包括：
所述CDN节点接收NPVR录制请求，所述NPVR录制请求携带频道标识、节目内容的开始时间和节目内容的结束时间；
所述CDN节点根据频道标识、节目内容开始时间和节目内容结束时间，确定所述第一索引文件；
所述CDN节点根据所述NPVR录制请求，将所述第一索引文件标识NPVR标识。
本发明实施例还提供了一种视频控制装置，包括：
获取模块，设置为获取终端发送的播放请求，所述播放请求用以请求存储在所述CDN节点的以电视节目点播TVOD形式和/或网络个人录制NPVR形式录制的媒体文件，所述播放请求携带频道标识、媒体文件开始时间和媒体文件结束时间；
第一确定模块，设置为根据所述频道标识、所述媒体文件开始时间和所述媒体文件结束时间，确定至少一个第一索引文件，所述第一索引文件至少包括：媒体文件的存储路径；
第二确定模块，设置为根据所述至少一个第一索引文件，确定第二索引文件，所述第二索引文件包括所述至少一个第一索引文件索引的所有媒 体文件的存储路径信息；
发送模块，设置为向所述终端发送所述第二索引文件，以使所述终端通过所述第二索引文件获取请求的所述媒体文件。
可选的，所述第一索引文件还包括：节目内容开始时间和节目内容结束时间、录制是否成功信息，以及标识信息，所述标识信息包括以下的任意一种或其组合：NPVR标识或TVOD标识。
可选的，所述第一确定模块，具体设置为所述CDN节点根据所述频道标识，确定所述频道标识指示频道对应的目录；所述CDN节点根据所述媒体文件开始时间和所述媒体文件结束时间，确定所述目录下的所述至少一个第一索引文件，所述第一索引文件以所述媒体文件开始时间和所述媒体文件结束时间命名。
可选的，所述获取模块，还设置为根据原文件地址，获取媒体文件和所述第一索引文件，所述媒体文件包括在一频道下录制的以一时长分割的媒体分片文件；将所述媒体文件和所述第一索引文件，存储在所述CDN节点的与频道对应的目录下。
可选的，所述第一确定模块，还设置为接收TVOD录制请求，所述TVOD录制请求携带频道标识、节目内容开始时间和节目内容结束时间；根据频道标识、节目内容开始时间和节目内容结束时间，确定所述第一索引文件；根据所述TVOD录制请求，将所述第一索引文件标识TVOD标识。
可选的，所述第一确定模块，还设置为所述CDN节点接收NPVR录制请求，所述NPVR录制请求携带频道标识、节目内容开始时间和节目内容结束时间；根据频道标识、节目内容开始时间和节目内容结束时间，确定所述第一索引文件；根据所述NPVR录制请求，将所述第一索引文件标识NPVR标识。
在本发明实施例中，还提供了一种计算机存储介质，该计算机存储介质可以存储有执行指令，该执行指令用于执行上述实施例中的视频控制方法。
与相关技术相比，本发明实施例包括，内容分发系统CDN节点获取终端发送的播放请求，所述播放请求用以请求存储在所述CDN节点的以电视节目点播TVOD形式和/或网络个人录制NPVR形式录制的媒体文件，所述播放请求携带频道标识、媒体文件开始时间和媒体文件结束时间；所述CDN节点根据所述频道标识、所述媒体文件开始时间和所述媒体文件结束时间，确定至少一个第一索引文件，所述第一索引文件至少包括：媒体文件的存储路径；所述CDN节点根据所述至少一个第一索引文件，确定第二索引文件，所述第二索引文件包括所述至少一个第一索引文件索引的所有媒体文件的存储路径信息；所述CDN节点向所述终端发送所述第二索引文件，以使所述终端通过所述第二索引文件获取请求的所述媒体文件。实现了TVOD和NPVR采用相同的播放方式，从而节省了CDN的存储空间。
本发明的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本发明而了解。本发明的目的和其他优点可通过在说明书、权利要求书以及附图中所特别指出的结构来实现和获得。
附图说明
附图用来提供对本发明技术方案的进一步理解，并且构成说明书的一部分，与本申请的实施例一起用于解释本发明的技术方案，并不构成对本发明技术方案的限制。
图1为本发明视频控制方法一实施例的流程示意图；
图2为本发明视频控制方法一实施例的目录和索引文件的结构示意图；
图3为本发明视频控制方法二实施例的流程示意图；
图4为本发明视频控制方法三实施例的流程示意图；
图5为本发明视频控制方法一实施例的视频控制系统结构示意图；
图6为本发明视频控制装置一实施例的结构示意图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚明白，下文中将结合附图对本发明的实施例进行详细说明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
本发明实施例提供的视频控制方法具体可以应用于终端向内容分发系统(Content Delivery Network，简称CDN)节点发送播放请求的场景，或，CDN节点录制媒体文件的场景。本实施例提供的视频控制方法可以通过视频控制装置执行，该视频控制装置可以单独设置，也可以设置在CDN节点上，其中，该装置可以采用软/硬件实现。以下对视频控制方法及其装置进行详细阐述。
图1为本发明视频控制方法一实施例的流程示意图，如图1所示，本发明实施例提供的视频控制方法，包括：
步骤101、内容分发系统CDN节点获取终端发送的播放请求。
在本实施例中，所述播放请求用以请求存储在所述CDN节点的以电视节目点播(True Video On Demand，简称TVOD)形式和/或网络个人录制(Network personal video recorder，简称NPVR)形式录制的媒体文件，所述播放请求携带频道标识、媒体文件开始时间和媒体文件结束时间；
步骤102、所述CDN节点根据所述频道标识、所述媒体文件开始时间和所述媒体文件结束时间，确定至少一个第一索引文件。
在本实施例中，所述第一索引文件至少包括：媒体文件的存储路径。
举例来讲，所述CDN节点根据所述频道标识，确定所述频道标识指示频道对应的目录；接着，所述CDN节点根据所述媒体文件开始时间和所述媒体文件结束时间，确定所述目录下的所述至少一个第一索引文件， 所述第一索引文件以所述媒体文件开始时间和所述媒体文件结束时间命名。
步骤103、所述CDN节点根据所述至少一个第一索引文件，确定第二索引文件。
在本实施例中，所述第二索引文件包括所述至少一个第一索引文件索引的所有媒体文件的存储路径信息。
步骤104、所述CDN节点向所述终端发送所述第二索引文件，以使所述终端通过所述第二索引文件获取请求的所述媒体文件。
本实施例至少包括以下两种实现方式：
第一种实现方式：内容分发系统CDN节点获取终端发送的TVOD播放请求时，该TVOD播放请求用以请求存储在所述CDN节点的以电TVOD形式录制的媒体文件，其中，该TVOD播放请求携带频道标识、媒体文件开始时间和媒体文件结束时间。CDN节点收到TVOD播放请求后，确定所述频道标识指示频道对应的目录；接着，所述CDN节点根据所述媒体文件开始时间和所述媒体文件结束时间，确定所述目录下的所述至少一个第一索引文件。再接着，读取这些第一索引文件中位于媒体文件开始时间和媒体文件结束时间的媒体分片路径，重新生成新的索引文件，即第二索引文件。然后，将第二索引文件发送给终端，以使终端根据获取到的第二索引文件，解析得到每个媒体分片文件的URL，并拿解析得到的URL到CDN进一步获取媒体文件。
第二种实现方式：内容分发系统CDN节点获取终端发送的NPVR播放请求时，该NPVR播放请求用以请求存储在所述CDN节点的以电NPVR形式录制的媒体文件，其中，该NPVR播放请求携带频道标识、媒体文件开始时间和媒体文件结束时间。CDN节点收到NPVR播放请求后，确定所述频道标识指示频道对应的目录；接着，所述CDN节点根据所述媒体文件开始时间和所述媒体文件结束时间，确定所述目录下的所述至少一个第一索引文件。再接着，读取这些第一索引文件中位于媒体文件开始时间 和媒体文件结束时间的媒体分片路径，重新生成新的索引文件，即第二索引文件。然后，将第二索引文件发送给终端，以使终端根据获取到的第二索引文件，解析得到每个媒体分片文件的URL，并拿解析得到的URL到CDN进一步获取媒体文件。
在本实施例中，内容分发系统CDN节点获取终端发送的播放请求，所述播放请求用以请求存储在所述CDN节点的以电视节目点播TVOD形式和/或网络个人录制NPVR形式录制的媒体文件，所述播放请求携带频道标识、媒体文件开始时间和媒体文件结束时间；所述CDN节点根据所述频道标识、所述媒体文件开始时间和所述媒体文件结束时间，确定至少一个第一索引文件，所述第一索引文件至少包括：媒体文件的存储路径；所述CDN节点根据所述至少一个第一索引文件，确定第二索引文件，所述第二索引文件包括所述至少一个第一索引文件索引的所有媒体文件的存储路径信息；所述CDN节点向所述终端发送所述第二索引文件，以使所述终端通过所述第二索引文件获取请求的所述媒体文件。实现了TVOD和NPVR采用相同的播放方式，从而节省了CDN的存储空间。
表1为本发明视频控制方法一实施例的第一索引文件的结构示意图，如表1所示，第一索引文件还包括：节目内容开始时间和节目内容结束时间、录制是否成功信息，以及标识信息，所述标识信息包括以下的任意一种或其组合：NPVR标识或TVOD标识。
表1
#EXT-X-START-TIME：2015-04-07T07：24：43Z
#EXT-X-END-TIME：2015-04-07T07：24：53Z
#EXT-X-NPVR：1
#EXT-X-TVOD：1
#EXT-X-Record-Staus：1
1.dat
#EXT-X-START-TIME：2015-04-07T07：24：53Z
#EXT-X-END-TIME：2015-04-07T07：25：03Z
#EXT-X-TVOD：1
#EXT-X-NPVR：1
#EXT-X-Record-Staus：0
2.dat
#EXT-X-START-TIME：2015-04-07T07：25：03Z
#EXT-X-END-TIME：2015-04-07T07：25：13Z
#EXT-X-NPVR：0
#EXT-X-TVOD：0
#EXT-X-Record-Staus：1
3.dat
可选的，在上述实施例的基础上，所述CDN节点获取终端发送的播放请求之前，还可以包括：
所述CDN节点根据原文件地址，获取媒体文件和所述第一索引文件，所述媒体文件包括在一频道下录制的以一时长分割的媒体分片文件；
所述CDN节点将所述媒体文件和所述第一索引文件，存储在所述CDN节点的与频道对应的目录下。
需要说明的是，录制正常的媒体文件在第一索引文件中打入录制成功的标记。
图2为本发明视频控制方法一实施例的目录和索引文件的结构示意图，如图2所示，TVOD(TVO)录制场景下，一个频道下面可以有多个第一索引文件，例如，频道CHANNEL下面有多个第一索引文件，所述第一索引文件以所述媒体文件开始时间和所述媒体文件结束时间命名。
图3为本发明视频控制方法二实施例的流程示意图，如图3所示，在上述实施例的基础上，在所述CDN节点获取终端发送的播放请求之前，该方法还可以包括：
步骤301、CDN节点接收TVOD录制请求。
在本实施例中，所述TVOD录制请求携带频道标识、节目内容的开始 时间和节目内容的结束时间；
步骤302、CDN节点根据频道标识、节目内容开始时间和节目内容结束时间，确定所述第一索引文件；
步骤303、CDN节点根据所述TVOD录制请求，将所述第一索引文件标识TVOD标识。
图4为本发明视频控制方法三实施例的流程示意图，如图4所示，在上述实施例的基础上，在所述CDN节点获取终端发送的播放请求之前，该方法还可以包括：
步骤401、CDN节点接收NPVR录制请求。
在本实施例中，NPVR录制请求携带频道标识、节目内容开始时间和节目内容结束时间；
步骤402、CDN节点根据频道标识、节目内容开始时间和节目内容结束时间，确定所述第一索引文件；
步骤403、CDN节点根据所述NPVR录制请求，将所述第一索引文件标识NPVR标识。
从以上步骤可以看出如图3所示的TVOD的录制流程以及如图4所示的NPVR的录制流程基本一致。
图5为本发明视频控制方法一实施例的视频控制系统结构示意图，如图5所示，CDN节点的频道录制模块收到业务管理系统的TVOD节目单录制请求周，通过存储模块，判断本地频道的录制情况，返回录制结果。或者，CDN节点的频道服务模块接收到业务管理系统的NPVR请求后，通过存储模块，判断本地频道的录制情况，返回录制结果，同时更新第一索引文件把对应时间段的媒体文件打上NPVR标记。进一步的，到达TVOD节目老化时间后，把索引中不包含NPVR标记的文件路径对应的媒体文件进行删除，同时从索引中把该文件路径也删除。
可选地，所属录制流程包括：定时更新获取源站的对应频道的第一索 引文件，根据获取到的第一索引文件下载最新的媒体分片文件录制到本地存储系统中，存储到对应的频道目录下，并定时生成本地的第一索引文件。本地文件索引按时间段命名，文件名能标识出该第一索引文件包含了那一段时间的媒体分片文件路径，每隔一段固定的时间后，重新生成新的第二索引文件。索引的内容除了包含媒体分片文件的路径，还包含了对应媒体文件的起止时间以及媒体分片文件是否录制成功。
可选地，CDN节点判断本地频道的录制情况包括：根据频道名称找到对应的频道路径，根据TVOD的时间段找到对应的本地第一索引文件，根据第一索引文件找到对应TVOD时间段的媒体分片文件的录制状态。
可选地，业务管理系统对用户的NPVR请求进行整合的流程包括：针对每个用户的NPVR请求，直接返回录制成功。在用户允许的NPVR请求时间段内搜集并保存所有用户的NPVR录制请求，并按照频道对请求的时间段进行合并，生成所有用户的录制集合。
图6为本发明视频控制装置一实施例的结构示意图，如图6所示，一种视频控制装置，包括：获取模块61、第一确定模块62、第二确定模块63和发送模块64。其中，
获取模块61，设置为获取终端发送的播放请求，所述播放请求用以请求存储在所述CDN节点的以电视节目点播TVOD形式和/或网络个人录制NPVR形式录制的媒体文件，所述播放请求携带频道标识、媒体文件开始时间和媒体文件结束时间；
第一确定模块62，设置为根据所述频道标识、所述媒体文件开始时间和所述媒体文件结束时间，确定至少一个第一索引文件，所述第一索引文件至少包括：媒体文件的存储路径；
第二确定模块63，设置为根据所述至少一个第一索引文件，确定第二索引文件，所述第二索引文件包括所述至少一个第一索引文件索引的所有媒体文件的存储路径信息；
发送模块64，设置为向所述终端发送所述第二索引文件，以使所述终 端通过所述第二索引文件获取请求的所述媒体文件。
在本实施例中，内容分发系统CDN节点获取终端发送的播放请求，所述播放请求用以请求存储在所述CDN节点的以电视节目点播TVOD形式和/或网络个人录制NPVR形式录制的媒体文件，所述播放请求携带频道标识、媒体文件开始时间和媒体文件结束时间；所述CDN节点根据所述频道标识、所述媒体文件开始时间和所述媒体文件结束时间，确定至少一个第一索引文件，所述第一索引文件至少包括：媒体文件的存储路径；所述CDN节点根据所述至少一个第一索引文件，确定第二索引文件，所述第二索引文件包括所述至少一个第一索引文件索引的所有媒体文件的存储路径信息；所述CDN节点向所述终端发送所述第二索引文件，以使所述终端通过所述第二索引文件获取请求的所述媒体文件。实现了TVOD和NPVR采用相同的播放方式，从而节省了CDN的存储空间。
需要说明的是，所述第一索引文件还包括：节目内容开始时间和节目内容结束时间、录制是否成功信息，以及标识信息，所述标识信息包括以下的任意一种或其组合：NPVR标识或TVOD标识。
可选的，在上述实施例的基础上，第一确定模块62，具体设置为所述CDN节点根据所述频道标识，确定所述频道标识指示频道对应的目录；所述CDN节点根据所述媒体文件开始时间和所述媒体文件结束时间，确定所述目录下的所述至少一个第一索引文件，所述第一索引文件以所述媒体文件开始时间和所述媒体文件结束时间命名。
可选的，在上述实施例的基础上，所述获取模块61，还设置为根据原文件地址，获取媒体文件和所述第一索引文件，所述媒体文件包括在一频道下录制的以一时长分割的媒体分片文件；将所述媒体文件和所述第一索引文件，存储在所述CDN节点的与频道对应的目录下。
可选的，在上述实施例的基础上，所述第一确定模块62，还设置为接收TVOD录制请求，所述TVOD录制请求携带频道标识、节目内容开始 时间和节目内容结束时间；根据频道标识、节目内容开始时间和节目内容结束时间，确定所述第一索引文件；根据所述TVOD录制请求，将所述第一索引文件标识TVOD标识。
可选的，在上述实施例的基础上，所述第一确定模块62，还设置为所述CDN节点接收NPVR录制请求，所述NPVR录制请求携带频道标识、节目内容开始时间和节目内容结束时间；根据频道标识、节目内容开始时间和节目内容结束时间，确定所述第一索引文件；根据所述NPVR录制请求，将所述第一索引文件标识NPVR标识。
本发明的实施例还提供了一种存储介质。可选地，在本实施例中，上述存储介质可以被设置为存储用于执行以下步骤的程序代码：
S1，内容分发系统CDN节点获取终端发送的播放请求，播放请求用以请求存储在CDN节点的以电视节目点播TVOD形式和/或网络个人录制NPVR形式录制的媒体文件，播放请求携带频道标识、媒体文件开始时间和媒体文件结束时间；
S2，CDN节点根据频道标识、媒体文件开始时间和媒体文件结束时间，确定至少一个第一索引文件，第一索引文件至少包括：媒体文件的存储路径；
S3，CDN节点根据至少一个第一索引文件，确定第二索引文件，第二索引文件包括至少一个第一索引文件索引的所有媒体文件的存储路径信息；
S4，CDN节点向终端发送第二索引文件，以使终端通过第二索引文件获取请求的媒体文件。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
S1，CDN节点根据频道标识，确定频道标识指示频道对应的目录；
S2，CDN节点根据媒体文件开始时间和媒体文件结束时间，确定目 录下的至少一个第一索引文件，第一索引文件以媒体文件开始时间和媒体文件结束时间命名。
可选地，在本实施例中，上述存储介质可以包括但不限于：U盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
虽然本发明所揭露的实施方式如上，但所述的内容仅为便于理解本发明而采用的实施方式，并非用以限定本发明。任何本发明所属领域内的技术人员，在不脱离本发明所揭露的精神和范围的前提下，可以在实施的形式及细节上进行任何的修改与变化，但本发明的专利保护范围，仍须以所附的权利要求书所界定的范围为准。
工业实用性
在本发明实施例中，内容分发系统CDN节点获取终端发送的播放请求，所述播放请求用以请求存储在所述CDN节点的以电视节目点播TVOD形式和/或网络个人录制NPVR形式录制的媒体文件，所述播放请求携带频道标识、媒体文件开始时间和媒体文件结束时间；所述CDN节点根据所述频道标识、所述媒体文件开始时间和所述媒体文件结束时间，确定至少一个第一索引文件，所述第一索引文件至少包括：媒体文件的存储路径；所述CDN节点根据所述至少一个第一索引文件，确定第二索引文件，所述第二索引文件包括所述至少一个第一索引文件索引的所有媒体文件的存储路径信息；所述CDN节点向所述终端发送所述第二索引文件，以使所述终端通过所述第二索引文件获取请求的所述媒体文件。实现了TVOD和NPVR采用相同的播放方式，从而节省了CDN的存储空间。

Claims (12)

  1. 一种视频控制方法，包括：
    内容分发系统CDN节点获取终端发送的播放请求，所述播放请求用以请求存储在所述CDN节点的以电视节目点播TVOD形式和/或网络个人录制NPVR形式录制的媒体文件，所述播放请求携带频道标识、媒体文件开始时间和媒体文件结束时间；
    所述CDN节点根据所述频道标识、所述媒体文件开始时间和所述媒体文件结束时间，确定至少一个第一索引文件，所述第一索引文件至少包括：媒体文件的存储路径；
    所述CDN节点根据所述至少一个第一索引文件，确定第二索引文件，所述第二索引文件包括所述至少一个第一索引文件索引的所有媒体文件的存储路径信息；
    所述CDN节点向所述终端发送所述第二索引文件，以使所述终端通过所述第二索引文件获取请求的所述媒体文件。
  2. 根据权利要求1所述的方法，其中，所述第一索引文件还包括：节目内容开始时间和节目内容结束时间、录制是否成功信息，以及标识信息，所述标识信息包括以下的任意一种或其组合：NPVR标识或TVOD标识。
  3. 根据权利要求2所述的方法，其中，所述CDN节点根据所述频道标识、所述媒体文件开始时间和所述媒体文件结束时间，确定至少一个第一索引文件，包括：
    所述CDN节点根据所述频道标识，确定所述频道标识指示频道对应的目录；
    所述CDN节点根据所述媒体文件开始时间和所述媒体文件结束时间，确定所述目录下的所述至少一个第一索引文件，所述第一索引文件以所述媒体文件开始时间和所述媒体文件结束时间命名。
  4. 根据权利要求3所述的方法，其中，所述CDN节点获取终端发送 的播放请求之前，还包括：
    所述CDN节点根据原文件地址，获取媒体文件和所述第一索引文件，所述媒体文件包括在一频道下录制的以一时长分割的媒体分片文件；
    所述CDN节点将所述媒体文件和所述第一索引文件，存储在所述CDN节点的与频道对应的目录下。
  5. 根据权利要求1-4任一项所述的方法，其中，所述CDN节点获取终端发送的播放请求之前，还包括：
    所述CDN节点接收TVOD录制请求，所述TVOD录制请求携带频道标识、节目内容开始时间和节目内容结束时间；
    所述CDN节点根据频道标识、节目内容开始时间和节目内容结束时间，确定所述第一索引文件；
    所述CDN节点根据所述TVOD录制请求，将所述第一索引文件标识TVOD标识。
  6. 根据权利要求1-4任一项所述的方法，其中，所述CDN节点获取终端发送的播放请求之前，还包括：
    所述CDN节点接收NPVR录制请求，所述NPVR录制请求携带频道标识、节目内容的开始时间和节目内容的结束时间；
    所述CDN节点根据频道标识、节目内容开始时间和节目内容结束时间，确定所述第一索引文件；
    所述CDN节点根据所述NPVR录制请求，将所述第一索引文件标识NPVR标识。
  7. 一种视频控制装置，包括：
    获取模块，设置为获取终端发送的播放请求，所述播放请求用以请求存储在所述CDN节点的以电视节目点播TVOD形式和/或网络个人录制 NPVR形式录制的媒体文件，所述播放请求携带频道标识、媒体文件开始时间和媒体文件结束时间；
    第一确定模块，设置为根据所述频道标识、所述媒体文件开始时间和所述媒体文件结束时间，确定至少一个第一索引文件，所述第一索引文件至少包括：媒体文件的存储路径；
    第二确定模块，设置为根据所述至少一个第一索引文件，确定第二索引文件，所述第二索引文件包括所述至少一个第一索引文件索引的所有媒体文件的存储路径信息；
    发送模块，设置为向所述终端发送所述第二索引文件，以使所述终端通过所述第二索引文件获取请求的所述媒体文件。
  8. 根据权利要求7所述的装置，其中，所述第一索引文件还包括：节目内容开始时间和节目内容结束时间、录制是否成功信息，以及标识信息，所述标识信息包括以下的任意一种或其组合：NPVR标识或TVOD标识。
  9. 根据权利要求8所述的装置，其中，所述第一确定模块，具体设置为所述CDN节点根据所述频道标识，确定所述频道标识指示频道对应的目录；所述CDN节点根据所述媒体文件开始时间和所述媒体文件结束时间，确定所述目录下的所述至少一个第一索引文件，所述第一索引文件以所述媒体文件开始时间和所述媒体文件结束时间命名。
  10. 根据权利要求9所述的装置，其中，所述获取模块，还设置为根据原文件地址，获取媒体文件和所述第一索引文件，所述媒体文件包括在一频道下录制的以一时长分割的媒体分片文件；将所述媒体文件和所述第一索引文件，存储在所述CDN节点的与频道对应的目录下。
  11. 根据权利要求7-10任一项所述的装置，其中，所述第一确定模块，还设置为接收TVOD录制请求，所述TVOD录制请求携带频道标识、节目内容开始时间和节目内容结束时间；根据频道标识、节目内容开始时 间和节目内容结束时间，确定所述第一索引文件；根据所述TVOD录制请求，将所述第一索引文件标识TVOD标识。
  12. 根据权利要求7-10任一项所述的装置，其中，所述第一确定模块，还设置为所述CDN节点接收NPVR录制请求，所述NPVR录制请求携带频道标识、节目内容开始时间和节目内容结束时间；根据频道标识、节目内容开始时间和节目内容结束时间，确定所述第一索引文件；根据所述NPVR录制请求，将所述第一索引文件标识NPVR标识。
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