WO2017185601A1 - 一种提供、下载视频的方法及设备 - Google Patents

一种提供、下载视频的方法及设备 Download PDF

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Publication number
WO2017185601A1
WO2017185601A1 PCT/CN2016/099903 CN2016099903W WO2017185601A1 WO 2017185601 A1 WO2017185601 A1 WO 2017185601A1 CN 2016099903 W CN2016099903 W CN 2016099903W WO 2017185601 A1 WO2017185601 A1 WO 2017185601A1
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WO
WIPO (PCT)
Prior art keywords
video
terminal
description information
network side
playlist
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PCT/CN2016/099903
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English (en)
French (fr)
Inventor
韩旭
Original Assignee
乐视控股（北京）有限公司
乐视致新电子科技（天津）有限公司
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Publication of WO2017185601A1 publication Critical patent/WO2017185601A1/zh

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    • 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
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • 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
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • H04N21/2353—Processing of additional data, e.g. scrambling of additional data or processing content descriptors specifically adapted to content descriptors, e.g. coding, compressing or processing of metadata
    • 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
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2387—Stream processing in response to a playback request from an end-user, e.g. for trick-play
    • 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
    • H04N21/25—Management 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
    • H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
    • H04N21/26208—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints
    • H04N21/26233—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints involving content or additional data duration or size, e.g. length of a movie, size of an executable file
    • 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
    • H04N21/437—Interfacing the upstream path of the transmission network, e.g. for transmitting client requests to a VOD server
    • 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
    • H04N21/47—End-user applications
    • H04N21/472—End-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
    • H04N21/47202—End-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 requesting content on demand, e.g. video on demand
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; 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 
    • H04N21/65—Transmission of management data between client and server
    • H04N21/658—Transmission by the client directed to the server
    • H04N21/6587—Control parameters, e.g. trick play commands, viewpoint selection
    • 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

Definitions

  • the present invention relates to the field of video technologies, and in particular, to a method and an apparatus for providing and downloading video.
  • the video on demand system mainly consists of a source source library system, a streaming media service system, a shadow box system, a transmission and switching network, a user terminal equipment set top box + a television set or a personal computer.
  • the streaming service system retrieves the program information stored in the source library according to the on-demand information, and transmits the video and audio stream files to the user terminal through the high-speed transmission network. .
  • a buffer is placed on the playing end, and streaming multimedia such as animation, audio, and video is divided into compression packets by a special compression method, and is continuously and real-time transmitted by the video server to the user computer.
  • streaming multimedia such as animation, audio, and video
  • the user does not have to wait until the entire file is completely downloaded as in the non-streaming play, and the specific content can be seen only after a few seconds or tens of seconds of startup delay.
  • the device compresses the compressed multimedia files such as compressed animation, audio, video, etc., and the rest of the multimedia file will continue to be downloaded in the background server.
  • the shortcoming of the prior art is that in the process, the user can only watch passively, or watch according to the segmentation of the video; the user cannot select and view according to his own needs.
  • the embodiment of the invention provides a method and a device for providing and downloading video, which are used to solve the defects in the prior art that the user cannot quickly browse the beautiful content or the key content that is desired to be viewed.
  • an embodiment of the present invention provides a method for providing a video, including:
  • a video file consists of several video clips
  • an embodiment of the present invention provides a method for downloading video, including:
  • one description information is matched with one video segment, and one video file is composed of several video segments;
  • an embodiment of the present invention provides an apparatus for providing a video, including:
  • An information providing module configured to provide at least one description information to the terminal, where one description information matches a video segment, and one video file is composed of several video segments;
  • the video providing module is configured to provide a video segment to the terminal according to the download request sent by the terminal, where the download request is used by the terminal to instruct the network side to download the video segment.
  • an embodiment of the present invention provides a device for downloading video, including:
  • the information receiving module is configured to receive at least one description information provided by the network side terminal, wherein the description information is matched with a video segment, and the video file is composed of several video segments;
  • a video determining module configured to determine, according to the description information, a video segment that needs to be downloaded
  • the video downloading module is configured to send a download request to the network side, where the download request is used by the terminal to instruct the network side to download the video segment.
  • an embodiment of the present invention provides an electronic device, including:
  • At least one processor and,
  • the memory stores instructions executable by the one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform operations of a method of providing video.
  • the operation includes: providing at least one description information to the terminal, one description information is matched with one video segment, and one video file is composed of several video segments; according to the download sent by the terminal The request is provided to the terminal with a video segment for the terminal to indicate the video segment that the network side needs to download.
  • an embodiment of the present invention provides a non-transitory computer readable storage medium, where the non-transitory computer readable storage medium stores computer instructions for causing the computer to perform video providing
  • the operation of the method includes: providing at least one description information to the terminal, a description information matching a video segment, a video file being composed of a plurality of video segments; providing a video segment to the terminal according to the download request sent by the terminal, The download request is for the terminal to indicate the video clip to be downloaded on the network side.
  • an embodiment of the present invention provides a computer program product, the computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program instruction is The computer, when executed, causes the computer to perform an operation of providing a video, the operation comprising: providing at least one description information to the terminal, a description information matching a video segment, and a video file consisting of a plurality of video segments; The sent download request provides a video segment to the terminal for the terminal to indicate the video segment that the network side needs to download.
  • an electronic device including:
  • At least one processor and,
  • the memory stores instructions executable by the one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform operations of a method of downloading video.
  • the operation includes: receiving at least one description information provided by the network side terminal, one description information is matched with one video segment, and one video file is composed of several video segments; determining a video segment to be downloaded according to the description information; sending to the network side A download request is used for the terminal to indicate a video segment to be downloaded on the network side.
  • an embodiment of the present invention provides a non-transitory computer readable storage medium, where the non-transitory computer readable storage medium stores computer instructions for causing the computer to perform downloading of video.
  • the operation of the method includes: receiving at least one description information provided by the network side terminal, one description information is matched with one video segment, and one video file is composed of several video segments; determining a video segment to be downloaded according to the description information; sending to the network side A download request is used for the terminal to indicate a video segment to be downloaded on the network side.
  • an embodiment of the present invention provides a computer program product, the computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program instruction is The computer is caused to perform an operation of the method of downloading video when executed by the computer.
  • the operation includes: receiving at least one description information provided by the network side terminal, one description information is matched with one video segment, and one video file is composed of several video segments; determining a video segment to be downloaded according to the description information; sending to the network side A download request is used for the terminal to indicate a video segment to be downloaded on the network side.
  • the network side first provides the terminal with the description information matching the video segment, so that the terminal can determine the video segment to be downloaded according to the description information, so that the terminal can The user can no longer only passively download and watch, or can only download and watch according to the segmentation of the video, thereby realizing the user to select and watch the video according to his own needs.
  • the source side can save a lot of storage space.
  • FIG. 1 is a schematic flowchart of a method for implementing video on a network side according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a method for implementing video downloading on a terminal side according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a device for providing video on a network side according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of an apparatus for downloading video on a terminal side according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a first electronic device according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a first non-transitory computer readable storage medium according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a second electronic device according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a second non-transitory computer readable storage medium according to an embodiment of the present invention.
  • a video playback solution is provided in the embodiment of the present invention, so that the user can actively view the video part that he needs, which will be described below.
  • FIG. 1 is a schematic flowchart of a method for implementing video on a network side, as shown in the figure, which may include:
  • Step 101 Provide at least one description information to the terminal, where one description information matches a video segment, and one video file is composed of several video segments;
  • Step 102 Provide a video segment to the terminal according to the download request sent by the terminal, where the download request is used by the terminal to instruct the network side to download the video segment.
  • FIG. 2 is a schematic flowchart of a method for downloading video on a terminal side, as shown in the figure, which may include:
  • Step 201 Receive at least one description information provided by the network side terminal, where one description information is matched with one video segment, and one video file is composed of several video segments;
  • Step 202 Determine, according to the description information, a video segment that needs to be downloaded.
  • Step 203 Send a download request to the network side, where the download request is used by the terminal to instruct the network side to download the video segment.
  • the description information may be carried in a playlist of video clips provided to the terminal.
  • the video provider may extract the highlight content or the key content according to the actual plot of the video when creating the playlist, and then add a mark in the playlist to identify the highlight content or the key content.
  • the playlist may be a playlist that is transmitted when the video file is played according to the HLS (HTTP Live Streaming, Apple's Dynamic Rate Adaptation Technology) protocol.
  • HLS HTTP Live Streaming, Apple's Dynamic Rate Adaptation Technology
  • the HLS protocol is taken as an example because the HLS transmission content includes two parts, one is a M3U8 description file, and the other is a TS media file.
  • the HLS protocol is a relatively common and relatively representative technology at present, the HLS protocol is taken as an example here; however, the present invention is implemented.
  • the technical solution provided by the example is that after the video file is segmented into video segments, the description information of the video segment is sent to the terminal for downloading the object before the transmission, which is easy to understand. In theory, other protocols are used.
  • the HLS protocol is used as an example only to teach those skilled in the art how to implement the present invention, but it does not mean that only the HLS protocol can be used.
  • the corresponding technical means can be determined in combination with practical needs.
  • HLS Http Live Streaming is a protocol defined by Apple for real-time streaming.
  • HLS is based on the HTTP protocol.
  • the transmission content consists of two parts. One is the playlist M3U8. The description file, the second is the TS media file.
  • the text file is described in text form and consists of a series of tags. Specifically, the ID, duration, and url download address information of the MPEG2-TS fragment are described.
  • #EXTM3U The first line of each M3U8 file must be this tag.
  • #EXT-X-TARGETDURATION Specify the maximum media segment length (in seconds). The length of time specified in #EXTINF must be less than or equal to this maximum. This value can only appear once.
  • #EXTINF Describes the length of a single media file. Followinged by the url address of the media file, such as http://xxxx./0.ts
  • the text file is described in text form and consists of a series of tags. Specifically The ID, duration, and url download address information of the MPEG2-TS fragment are described. Suppose we watch the video and find that the content of 1.ts in the playlist is the most exciting or important in the whole movie, then we add a label like INFOINFO:3, such as (but not limited to) #MARK".
  • the file format defined by DVB is used for network transmission of audio and video, in which audio and video are interleaved by time stamp. Each packet size is 188 bytes.
  • the playlist is transmitted first, and then the terminal downloads the url according to the playlist, acquires the data of the TS, and then parses the TS data, thereby obtaining the H264sample and AAC sample data and the pts timestamp information, and sends the data to the decoder. decoding.
  • the description information can be carried in the playlist M3U8 file of the video clip provided to the terminal in the implementation. Then, according to the description information, determine the video clip that needs to be downloaded, and then play it after downloading. Obviously, the video clip that is downloaded and played is the video clip that you need.
  • Video clips c1, c2 related to the exciting action content C are Video clips c1, c2 related to the exciting action content C.
  • the video clips a1, a2 related to the wonderful scenery content are labeled as #MARK-A; the video clips b1 and b2 related to the wonderful character content are labeled as #MARK-B; and the video clips c1 and c2 related to the exciting motion content are labeled as #MARK -C.
  • the playlist is transmitted first, and then the terminal downloads the url according to the playlist, obtains the TS data, and then parses the TS data, thereby obtaining the H264sample and AAC sample data. Pts timestamp information and then plays it.
  • the description information of the video segment will appear in the description information of the video segment: that is, the label.
  • the video clip a1, a2 tag #MARK-A, video clip b1, b2 tag #MARK-B, video clip c1, c2 tag #MARK-C will appear in the playlist.
  • the playlist style is as follows:
  • the terminal After the terminal receives the playlist, if it is necessary to view the clip related to the exciting scenery content, it is only necessary to determine the video clips to be downloaded as the video clips a1 and a2 according to the description information tag MARK-A, and then the terminal performs the video segment a1 according to the playlist. Downloading the url of a2, obtaining the data of the TS of the video clips a1, a2 obtained by the video clips a1, a2, and then parsing the TS data, thereby obtaining the H264sample and AAC sample data and the pts time stamp information, and then playing Just fine.
  • the video segments c1 and c2 labeled MARK-C are downloaded.
  • the video clips are simply labeled with MARK-A, MARK-B, and MARK-C.
  • MARK-A stands for landscape
  • MARK-C stands for action.
  • the terminal only needs to recognize MARK-A, MARK-C to know the content involved in the video clip.
  • it can also be directly identified, for example, directly indicating the labels of the video clips c1 and c2 as: related actions.
  • an embodiment of the present invention further provides a video device for providing and downloading, and an electronic device, a non-transitory computer readable storage medium, and a computer program product.
  • the method of downloading videos is similar, so the implementation of these devices can be referred to the implementation of the method, and the repetition will not be repeated.
  • FIG. 3 is a schematic structural diagram of a device for providing video on the network side, as shown in the figure, which may include:
  • the information providing module 301 is configured to provide at least one description information to the terminal, where one description information matches a video segment, and one video file is composed of several video segments;
  • the video providing module 302 is configured to provide a video slice to the terminal according to the download request sent by the terminal.
  • the download request is used by the terminal to instruct the network side to download the video segment.
  • the information providing module may be further configured to carry the description information in a playlist of the video segment provided to the terminal.
  • the playlist may be a playlist transmitted when a video file is played according to the HLS protocol.
  • FIG. 4 is a schematic structural diagram of a device for downloading video on the terminal side, as shown in the figure, which may include:
  • the information receiving module 401 is configured to receive at least one description information provided by the network side terminal, where one description information is matched with one video segment, and one video file is composed of several video segments;
  • the video determining module 402 is configured to determine, according to the description information, a video segment that needs to be downloaded;
  • the video downloading module 403 is configured to send a download request to the network side, where the download request is used by the terminal to instruct the network side to download the video segment.
  • the information receiving module may be further configured to receive the description information carried in a playlist of the video segment provided by the network to the terminal.
  • the playlist may be a playlist transmitted when a video file is played according to the HLS protocol.
  • a schematic structural diagram of an electronic device includes a memory 51, one or more processors 52, and one or more programs 53, wherein the memory stores An instruction executed by a processor, the instructions being executed by the at least one processor to enable the at least one processor to perform operations of a method of providing video.
  • the operation includes: providing at least one description information to the terminal, one description information is matched with one video segment, and one video file is composed of several video segments; the video segment is provided to the terminal according to the download request sent by the terminal, and the download request is used for The terminal indicates the video clip to be downloaded on the network side.
  • Embodiments of the present invention also provide a non-transitory computer readable storage medium having stored thereon computer instructions for causing the computer to perform operations of a method of providing video
  • the operation includes: providing at least one description information to the terminal, one description information is matched with one video segment, and one video file is composed of several video segments; the video segment is provided to the terminal according to the download request sent by the terminal, and the download request is used by the terminal.
  • the video segment for the terminal to be downloaded on the network side is indicated by the terminal.
  • a computer program product 62 is stored on the computer readable storage medium 61
  • the program product of the computer program product may employ any combination of one or more readable media, such as a signal bearing medium 63, a computer readable medium 64, a recordable medium 65, a communication medium 66, etc., in the signal bearing medium 63. Storing at least one one or more instructions for providing at least one description information to the terminal; and one or more instructions for providing the video clip to the terminal based on the download request sent by the terminal.
  • Embodiments of the present invention provide a computer program product, the computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program instructions are executed by a computer, Causing the computer to perform an operation of a method of providing a video, the operation comprising: providing at least one description information to the terminal, one description information matching a video segment, and one video file being composed of a plurality of video segments; according to a download request sent by the terminal A video segment is provided to the terminal for the terminal to indicate a video segment to be downloaded on the network side.
  • FIG. 7 is a schematic structural diagram of an apparatus for downloading video according to an embodiment of the present invention, including a memory 71, one or more processors 72, and one or more programs 73, wherein the memory stores An instruction executed by the one processor, the instruction being executed by the at least one processor to enable the at least one processor to perform an operation of a method of downloading video.
  • the operation includes: receiving at least one description information provided by the network side terminal, one description information is matched with one video segment, and one video file is composed of several video segments; determining a video segment to be downloaded according to the description information; sending to the network side A download request is used for the terminal to indicate a video segment to be downloaded on the network side.
  • the embodiment of the present invention further provides another non-transitory computer readable storage medium, where the non-transitory computer readable storage medium stores computer instructions for causing the computer to perform a method of downloading video.
  • the operation includes: receiving at least one description information provided by the network side terminal, one description information is matched with one video segment, and one video file is composed of several video segments; determining a video segment to be downloaded according to the description information; sending to the network side A download request is used for the terminal to indicate a video segment to be downloaded on the network side.
  • a computer program product 82 is stored on a computer readable storage medium 81, which may be in any combination of one or more readable mediums, for example, a signal bearing medium 83, a computer a readable medium 84, a recordable medium 85, a communication medium 86, etc., the signal bearing medium 83 storing at least one one or more instructions for receiving at least one description information provided by the network side terminal; Information is determined to be downloaded One or more instructions of the video clip; and one or more instructions for transmitting a download request to the network side.
  • Embodiments of the present invention provide a computer program product, the computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program instructions are executed by a computer,
  • the computer is caused to perform an operation of a method of downloading video.
  • the operation includes: receiving at least one description information provided by the network side terminal, one description information is matched with one video segment, and one video file is composed of several video segments; determining a video segment to be downloaded according to the description information; sending to the network side A download request is used for the terminal to indicate a video segment to be downloaded on the network side.
  • the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, ie may be located A place, or it can be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without deliberate labor.

Abstract

一种提供、下载视频的方法及设备，包括：在网络侧提供视频时，向终端提供至少一个描述信息，一个描述信息与一个视频片段相匹配，一个视频文件由若干视频片段组成，并根据终端发送的下载请求向终端提供视频片段。在终端侧下载视频时，根据描述信息确定需要下载的视频片段；向网络侧发送下载请求，所述下载请求用于供终端指示网络侧所需下载的视频片段。采用本发明实施例中提供的技术方案，用户不再只能被动的进行下载观看，或者，仅仅只能按照视频的分段进行下载观看，而是使用户能够按照自身的需求进行视频的选择及观看。

Description

一种提供、下载视频的方法及设备
本申请要求在2016年4月26日提交中国专利局、申请号为201610266874.0、发明名称为“一种提供、下载视频的方法及设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及视频技术领域，尤其涉及一种提供、下载视频的方法及设备。
背景技术
视频点播系统主要由片源库系统、流媒体服务系统、影柜系统、传输及交换网络、用户终端设备机顶盒+电视机或个人计算机组成。
在视频点播时，当用户发出点播请求时，流媒体服务系统就会根据点播信息，将存放在片源库中的节目信息检索出来，以视频和音频流文件，通过高速传输网络传送到用户终端。
在点播的过程中，在播放端放置缓冲区，流式传输将动画、音频和视频等多媒体经过特殊的压缩方式分成一个个压缩包，由视频服务器向用户计算机连续、实时地传送。在采用流式传输方式的系统中，用户不必象非流式播放那样等到整个文件全部下载完毕后才能看到具体的内容，只需经过几秒或几十秒的启动延时即可利用相应播放器对压缩的动画、音频、视频等流式多媒体文件解压后进行播放，多媒体文件的剩余部分也将在后台的服务器内继续下载。
但现有技术的不足在于：在该过程中，用户只能被动的进行观看，或者，按照视频的分段进行观看；用户不能按照自身的需求进行选择及观看。
发明内容
本发明实施例提供了一种提供、下载视频的方法及设备，用以解决现有技术中，用户不能快速浏览想看的精彩内容或重点内容的缺陷。
第一方面，本发明实施例提供一种提供视频的方法，包括：
向终端提供至少一个描述信息，一个描述信息与一个视频片段相匹配， 一个视频文件由若干视频片段组成；
根据终端发送的下载请求向终端提供视频片段，所述下载请求用于供终端指示网络侧所需下载的视频片段。
第二方面，本发明实施例提供一种下载视频的方法，包括：
接收网络侧向终端提供的至少一个描述信息，一个描述信息与一个视频片段相匹配，一个视频文件由若干视频片段组成；
根据描述信息确定需要下载的视频片段；
向网络侧发送下载请求，所述下载请求用于供终端指示网络侧所需下载的视频片段。
第三方面，本发明实施例提供一种提供视频的设备，包括：
信息提供模块，用于向终端提供至少一个描述信息，一个描述信息与一个视频片段相匹配，一个视频文件由若干视频片段组成；
视频提供模块，用于根据终端发送的下载请求向终端提供视频片段，所述下载请求用于供终端指示网络侧所需下载的视频片段。
第四方面，本发明实施例提供一种下载视频的设备，包括：
信息接收模块，用于接收网络侧向终端提供的至少一个描述信息，一个描述信息与一个视频片段相匹配，一个视频文件由若干视频片段组成；
视频确定模块，用于根据描述信息确定需要下载的视频片段；
视频下载模块，用于向网络侧发送下载请求，所述下载请求用于供终端指示网络侧所需下载的视频片段。
第五方面，本发明实施例提供一种电子设备，包括：
至少一个处理器；以及，
与所述至少一个处理器通信连接的存储器；其中，
所述存储器存储有可被所述一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行提供视频的方法的操作。其中，操作包括：向终端提供至少一个描述信息，一个描述信息与一个视频片段相匹配，一个视频文件由若干视频片段组成；根据终端发送的下载 请求向终端提供视频片段，所述下载请求用于供终端指示网络侧所需下载的视频片段。
第六方面，本发明实施例提供一种非暂态计算机可读存储介质，所述非暂态计算机可读存储介质上存储有计算机指令，所述计算机指令用于使所述计算机执行提供视频的方法的操作，所述操作包括：向终端提供至少一个描述信息，一个描述信息与一个视频片段相匹配，一个视频文件由若干视频片段组成；根据终端发送的下载请求向终端提供视频片段，所述下载请求用于供终端指示网络侧所需下载的视频片段。
第七方面，本发明实施例提供一种计算机程序产品，所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算机程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，使所述计算机执行提供视频的方法的操作，所述操作包括：向终端提供至少一个描述信息，一个描述信息与一个视频片段相匹配，一个视频文件由若干视频片段组成；根据终端发送的下载请求向终端提供视频片段，所述下载请求用于供终端指示网络侧所需下载的视频片段。
第八方面，本发明实施例提供一种电子设备，包括：
至少一个处理器；以及，
与所述至少一个处理器通信连接的存储器；其中，
所述存储器存储有可被所述一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行下载视频的方法的操作。其中，操作包括：接收网络侧向终端提供的至少一个描述信息，一个描述信息与一个视频片段相匹配，一个视频文件由若干视频片段组成；根据描述信息确定需要下载的视频片段；向网络侧发送下载请求，所述下载请求用于供终端指示网络侧所需下载的视频片段。
第九方面，本发明实施例提供一种非暂态计算机可读存储介质，所述非暂态计算机可读存储介质上存储有计算机指令，所述计算机指令用于使所述计算机执行下载视频的方法的操作。其中，操作包括：接收网络侧向终端提供的至少一个描述信息，一个描述信息与一个视频片段相匹配，一个视频文件由若干视频片段组成；根据描述信息确定需要下载的视频片段；向网络侧发送下载请求，所述下载请求用于供终端指示网络侧所需下载的视频片段。
第十方面，本发明实施例提供一种计算机程序产品，所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算机程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，使所述计算机执行下载视频的方法的操作。其中，操作包括：接收网络侧向终端提供的至少一个描述信息，一个描述信息与一个视频片段相匹配，一个视频文件由若干视频片段组成；根据描述信息确定需要下载的视频片段；向网络侧发送下载请求，所述下载请求用于供终端指示网络侧所需下载的视频片段。
在本发明实施例提供的一种提供、下载视频的方法及设备中，由于网络侧首先向终端提供了与视频片段相匹配的描述信息，使得终端能够依据描述信息确定需要下载的视频片段，这样，用户不再只能被动的进行下载观看，或者，仅仅只能按照视频的分段进行下载观看，实现了用户按照自身的需求进行视频的选择及观看。
进一步的，由于不再需要增加额外的存储空间去单独存储精彩内容或重点内容的“精彩视频”，所以可以使片源方节省大量存储空间。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例中网络侧提供视频的方法实施流程示意图；
图2为本发明实施例中终端侧下载视频的方法实施流程示意图；
图3为本发明实施例中网络侧提供视频的设备结构示意图；
图4为本发明实施例中终端侧下载视频的设备结构示意图；
图5为本发明实施例中第一种电子设备的结构示意图；
图6为本发明实施例中第一种非暂态计算机可读存储介质示意图；
图7为本发明实施例中第二种电子设备结构示意图；
图8为本发明实施例中第二种非暂态计算机可读存储介质示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
发明人在发明过程中注意到：
现有机制下用户不能自主的去观看某个自己需要观看的视频片段。以用户点播一部电影为例，一部电影通常会有一些代表性的精彩片段，而这些片段的出现位置并不固定。这样，如果在现有的点播机制下，用户只能被动的进行观看，或者，按照视频的分段进行观看；当用户需要只观看精彩片段时，用户并不能按照自身的需求进行选择、观看。
进一步的，为了满足这部分仅看精彩片断的用户，商家不得不将这些片段经过后期人工编辑成独立的视频，然后放在网络服务器上供用户观看。这种方式至少带来以下问题：
由于每部电影的精彩片断出现位置不固定，且内容也需要进行判断，因此不得不采用人工的方式去进行编辑，这无疑会照成大量的人工浪费；另外，由于编辑后的视频实质上是一个与原电影视频并无关系的视频文件，因此用户要观看就不得不额外的进行检索或者去获取，这也将增加用户方的投入。
基于此，本发明实施例中提供了一种视频播放方案，用以使用户能够主动的观看自己需要视频部分，下面进行说明。
在说明过程中，将分别从终端与网络侧的实施进行说明，其中网络侧将说明提供视频片段的过程，终端侧将说明视频片段下载的过程，然后还将给出二者配合实施的实例以更好地理解本发明实施例中给出的方案的实施。这样的说明方式并不意味着二者必须配合实施、或者必须单独实施，实际上，当终端与网络侧分开实施时，其也各自解决终端侧、网络侧的问题，而二者结合使用时，会获得更好的技术效果。
图1为网络侧提供视频的方法实施流程示意图，如图所示，可以包括：
步骤101、向终端提供至少一个描述信息，一个描述信息与一个视频片段相匹配，一个视频文件由若干视频片段组成；
步骤102、根据终端发送的下载请求向终端提供视频片段，所述下载请求用于供终端指示网络侧所需下载的视频片段。
图2为终端侧下载视频的方法实施流程示意图，如图所示，可以包括：
步骤201、接收网络侧向终端提供的至少一个描述信息，一个描述信息与一个视频片段相匹配，一个视频文件由若干视频片段组成；
步骤202、根据描述信息确定需要下载的视频片段；
步骤203、向网络侧发送下载请求，所述下载请求用于供终端指示网络侧所需下载的视频片段。
实施中，描述信息可以是在向终端提供的视频片段的播放列表中携带的。例如可以是，视频提供方在制作播放列表时，按照视频实际的情节，抽取出精彩内容或重点内容，然后在播放列表中添加一种标记标识出精彩内容或重点内容。
具体实施中，播放列表可以是按HLS(HTTP Live Streaming，Apple的动态码率自适应技术)协议播放视频文件时传输的播放列表。
下面具体以HLS协议下的实施进行说明，以HLS协议为例是因为HLS传输内容包括两部分，一是M3U8描述文件，二是TS媒体文件。一方面这样的结构比较容易实现本发明实施例中提供的技术方案，另一方面是因为HLS协议是目前比较常用、比较具有代表性的技术，所以这里以HLS协议为例；但是，本发明实施例提供的技术方案在于，是在将视频文件分割为视频片段后，在传输前，将携带视频片段的描述信息发送至终端供其选择下载对象，容易理解，从理论上来说，用其它的协议、或者其他手段、或者专门配置相应的技术方案来实现也是可以的，因此，以HLS协议为例仅用于教导本领域技术人员具体如何实施本发明，但不意味仅能使用HLS协议来实现，实施过程中可以结合实践需要来确定相应的技术手段。
下面先对HLS进行简单说明。
HLS，Http Live Streaming是由Apple公司定义的用于实时流传输的协议，HLS基于HTTP协议实现，传输内容包括两部分，一是播放列表M3U8 描述文件，二是TS媒体文件。
1、M3U8文件：
用文本方式对媒体文件进行描述，由一系列标签组成。具体是对MPEG2-TS片段的ID、时长、url下载地址信息进行描述。
#EXTM3U
#EXT-X-TARGETDURATION:5
#EXTINF:5,
http://xxxx././0.ts
#EXTINF:3,
http://xxxx././1.ts
#EXTINF:4,
http://xxxx././2.ts
#EXTINF:5,
http://xxxx././3.ts
#EXTINF:5,
http://xxxx././4.ts
#ENDLIST
#EXTM3U：每个M3U8文件第一行必须是这个tag。
#EXT-X-TARGETDURATION：指定最大的媒体段时间长度(秒)，#EXTINF中指定的时间长度必须小于或等于这个最大值。该值只能出现一次。
#EXTINF：描述单个媒体文件的长度。后面为媒体文件的url地址，如http://xxxx./0.ts
下面是添加描述信息后的M3U8播放列表文件格式：
1、M3U8文件：
用文本方式对媒体文件进行描述，由一系列标签组成。具体是对 MPEG2-TS片段的ID、时长、url下载地址信息进行描述。假设我们通过观看视频，发现播放列表中1.ts的内容是全片中最精彩或最重要的，那么我们在EXTINFO:3后面再加如一个描述信息的标签，比如(但不局限于)“#MARK”。
#EXTM3U
#EXT-X-TARGETDURATION:5
#EXTINF:5,
http://xxxx././0.ts
#EXTINF:3,#MARK
http://xxxx././1.ts
#EXTINF:4,
http://xxxx././2.ts
#EXTINF:5,
http://xxxx././3.ts
#EXTINF:5,
http://xxxx././4.ts
#ENDLIST
2、TS文件
DVB定义的文件格式，用于音视频的网络传输，其中音视频按时间戳进行交织。每个数据包大小为188个字节。
在点播时，先传输播放列表，然后终端根据播放列表进行url的下载，获取到TS的数据，然后进行TS数据的解析，进而得到H264sample和AAC sample数据以及pts时间戳信息，送给解码器进行解码。
容易看出，实施中可以将描述信息通过在向终端提供的视频片段的播放列表M3U8文件中携带。然后根据描述信息确定需要下载的视频片段，下载后播放即可。显然，下载播放的视频片段即为自身需要的视频片段。
以用户点播一部电影为例，设该部电影具有一些代表性的精彩片段，设这些片段包括：
与涉及精彩风景内容A有关的视频片段a1、a2；
与涉及精彩人物内容B有关的视频片段b1、b2；
与涉及精彩动作内容C有关的视频片段c1、c2。
容易理解，每部影片精彩的内容一般都不相同，组成的视频片段数量一般也不相同，一般情况下视频片段的出现位置也不相同。
假设将涉及精彩风景内容的视频片段a1、a2标签为#MARK-A；涉及精彩人物内容的视频片段b1、b2标签为#MARK-B；涉及精彩动作内容的视频片段c1、c2标签为#MARK-C。
那么，在采用HLS协议进行视频文件网络传输时，会先传输播放列表，然后终端根据播放列表进行url的下载，获取到TS的数据，然后进行TS数据的解析，进而得到H264sample和AAC sample数据以及pts时间戳信息，然后进行播放。
则在本实施例中，在播放列表中，视频片段的描述信息中将会出现该视频片段相匹配的描述信息：也即标签。在上例中，则将会在播放列表中，出现视频片段a1、a2标签#MARK-A，视频片段b1、b2标签#MARK-B，视频片段c1、c2标签#MARK-C。
播放列表样式如下：
#EXTM3U
#EXT-X-TARGETDURATION:5
#EXTINF:5,#MARK-A
http://xxxx././a1.ts
#EXTINF:3,#MARK-A
http://xxxx././a2.ts
#EXTINF:4,#MARK-B
http://xxxx././b1.ts
#EXTINF:5,#MARK-B
http://xxxx././b2.ts
#EXTINF:5,#MARK-C
http://xxxx././c1.ts
#EXTINF:5,#MARK-C
http://xxxx././c2.ts
#ENDLIST
在终端接收到播放列表后，若需要观看涉及精彩风景内容的片段，则只需根据描述信息标签MARK-A确定需要下载的视频片段为视频片段a1、a2，然后终端根据播放列表进行视频片段a1、a2的url的下载，获取到视频片段a1、a2的获取到视频片段a1、a2的TS的数据，然后进行TS数据的解析，进而得到H264sample和AAC sample数据以及pts时间戳信息，然后进行播放即可。
同理，若需要观看涉及精彩动作内容的片段，则下载标签为MARK-C的视频片段c1、c2。
例中仅是简单的以MARK-A、MARK-B、MARK-C来标签视频片段，实际上可以采用多种方式，如本例中约定MARK-A代表涉及风景、MARK-C代表涉及动作，终端只需识别MARK-A、MARK-C便可获知该视频片段涉及的内容。当然也可以直接标识，例如直接将视频片段c1、c2的标签指明为：涉及动作。
基于同一发明构思，本发明实施例中还提供了一种提供、下载视频设备，以及电子设备、非暂态计算机可读存储介质、计算机程序产品，由于这些设备解决问题的原理与一种提供、下载视频的方法相似，因此这些设备的实施可以参见方法的实施，重复之处不再赘述。
图3为网络侧提供视频的设备结构示意图，如图所示，可以包括：
信息提供模块301，用于向终端提供至少一个描述信息，一个描述信息与一个视频片段相匹配，一个视频文件由若干视频片段组成；
视频提供模块302，用于根据终端发送的下载请求向终端提供视频片 段，所述下载请求用于供终端指示网络侧所需下载的视频片段。
实施中，信息提供模块可以进一步用于在向终端提供的视频片段的播放列表中携带所述描述信息。
实施中，所述播放列表可以是按HLS协议播放视频文件时传输的播放列表。
图4为终端侧下载视频的设备结构示意图，如图所示，可以包括：
信息接收模块401，用于接收网络侧向终端提供的至少一个描述信息，一个描述信息与一个视频片段相匹配，一个视频文件由若干视频片段组成；
视频确定模块402，用于根据描述信息确定需要下载的视频片段；
视频下载模块403，用于向网络侧发送下载请求，所述下载请求用于供终端指示网络侧所需下载的视频片段。
实施中，信息接收模块可以进一步用于接收在网络侧向终端提供的视频片段的播放列表中携带的所述描述信息。
实施中，所述播放列表可以是按HLS协议播放视频文件时传输的播放列表。
如图5所示，为本发明实施例提供的一种电子设备的结构示意图，包括存储器51、一个或多个处理器52以及一个或多个程序53，其中，所述存储器存储有可被所述一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行提供视频的方法的操作。其中，操作包括：向终端提供至少一个描述信息，一个描述信息与一个视频片段相匹配，一个视频文件由若干视频片段组成；根据终端发送的下载请求向终端提供视频片段，所述下载请求用于供终端指示网络侧所需下载的视频片段。
本发明实施例还提供一种非暂态计算机可读存储介质，所述非暂态计算机可读存储介质上存储有计算机指令，所述计算机指令用于使所述计算机执行提供视频的方法的操作，所述操作包括：向终端提供至少一个描述信息，一个描述信息与一个视频片段相匹配，一个视频文件由若干视频片段组成；根据终端发送的下载请求向终端提供视频片段，所述下载请求用于供终端指示网络侧所需下载的视频片段。
如图6所示，计算机可读存储介质61上存储有计算机程序产品62，所述 计算机程序产品所述程序产品可以采用一个或多个可读介质的任意组合，例如，信号承载介质63，计算机可读介质64，可记录介质65，通信介质66等，所述信号承载介质63中存储有至少一个用于向终端提供至少一个描述信息的一个或多个指令；以及用于根据终端发送的下载请求向终端提供视频片段的一个或多个指令。
本发明实施例提供一种计算机程序产品，所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算机程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，使所述计算机执行提供视频的方法的操作，所述操作包括：向终端提供至少一个描述信息，一个描述信息与一个视频片段相匹配，一个视频文件由若干视频片段组成；根据终端发送的下载请求向终端提供视频片段，所述下载请求用于供终端指示网络侧所需下载的视频片段。
如图7所示，为本发明实施例提供的一种下载视频的装置的结构示意图，包括存储器71、一个或多个处理器72以及一个或多个程序73，其中，所述存储器存储有可被所述一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行下载视频的方法的操作。其中，操作包括：接收网络侧向终端提供的至少一个描述信息，一个描述信息与一个视频片段相匹配，一个视频文件由若干视频片段组成；根据描述信息确定需要下载的视频片段；向网络侧发送下载请求，所述下载请求用于供终端指示网络侧所需下载的视频片段。
本发明实施例还提供另外一种非暂态计算机可读存储介质，所述非暂态计算机可读存储介质上存储有计算机指令，所述计算机指令用于使所述计算机执行下载视频的方法的操作。其中，操作包括：接收网络侧向终端提供的至少一个描述信息，一个描述信息与一个视频片段相匹配，一个视频文件由若干视频片段组成；根据描述信息确定需要下载的视频片段；向网络侧发送下载请求，所述下载请求用于供终端指示网络侧所需下载的视频片段。
如图8所示，计算机可读存储介质81上存储有计算机程序产品82，所述计算机程序产品所述程序产品可以采用一个或多个可读介质的任意组合，例如，信号承载介质83，计算机可读介质84，可记录介质85，通信介质86等，所述信号承载介质83中存储有至少一个用于接收网络侧向终端提供的至少一个描述信息的一个或多个指令；用于根据描述信息确定需要下载的 视频片段的一个或多个指令；以及用于向网络侧发送下载请求的一个或多个指令。
本发明实施例提供一种计算机程序产品，所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算机程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，使所述计算机执行下载视频的方法的操作。其中，操作包括：接收网络侧向终端提供的至少一个描述信息，一个描述信息与一个视频片段相匹配，一个视频文件由若干视频片段组成；根据描述信息确定需要下载的视频片段；向网络侧发送下载请求，所述下载请求用于供终端指示网络侧所需下载的视频片段。
综上所述，现有技术中，通常一部电影的精彩片段都是需要人为后期剪辑，生成一个几分钟的新片，放到网络服务器上，供给用户观看。而通过本发明实施例提供的技术方案可以免去这个新片的生成，只需要通过描述信息便可以使用户确认自己需要的片段，自行下载即可，不用再额外生成新的“精彩视频”，大大节省网络存储空间。同理，由于没有生成额外的“精彩视频”，所以用户也不再需要去网络上搜索精彩片段成片进行观看。事实上，这样下载的“精彩视频”本质上是用户自己剪辑而成的，更为契合用户需求，能够明显提升用户的服务感受。
以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性的劳动的情况下，即可以理解并实施。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到各实施方式可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件。基于这样的理解，上述技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品可以存储在计算机可读存储介质中，如ROM/RAM、磁碟、光盘等，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行各个实施例或者实施例的某些部分所述的方法。
最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (15)

  1. 一种提供视频的方法，其特征在于，包括：
    向终端提供至少一个描述信息，一个描述信息与一个视频片段相匹配，一个视频文件由若干视频片段组成；
    根据终端发送的下载请求向终端提供视频片段，所述下载请求用于供终端指示网络侧所需下载的视频片段。
  2. 根据权利要求1所述的方法，其特征在于，所述描述信息是在向终端提供的视频片段的播放列表中携带的。
  3. 根据权利要求2所述的方法，其特征在于，所述播放列表是按HLS协议播放视频文件时传输的播放列表。
  4. 一种下载视频的方法，其特征在于，包括：
    接收网络侧向终端提供的至少一个描述信息，一个描述信息与一个视频片段相匹配，一个视频文件由若干视频片段组成；
    根据描述信息确定需要下载的视频片段；
    向网络侧发送下载请求，所述下载请求用于供终端指示网络侧所需下载的视频片段。
  5. 根据权利要求4所述的方法，其特征在于，所述描述信息是在向终端提供的视频片段的播放列表中携带的。
  6. 根据权利要求5所述的方法，其特征在于，所述播放列表是按HLS协议播放视频文件时传输的播放列表。
  7. 一种提供视频的设备，其特征在于，包括：
    信息提供模块，用于向终端提供至少一个描述信息，一个描述信息与一个视频片段相匹配，一个视频文件由若干视频片段组成；
    视频提供模块，用于根据终端发送的下载请求向终端提供视频片段，所述下载请求用于供终端指示网络侧所需下载的视频片段。
  8. 根据权利要求7所述的设备，其特征在于，信息提供模块进一步用于在向终端提供的视频片段的播放列表中携带所述描述信息。
  9. 根据权利要求8所述的设备，其特征在于，所述播放列表是按HLS协议播放视频文件时传输的播放列表。
  10. 一种下载视频的设备，其特征在于，包括：
    信息接收模块，用于接收网络侧向终端提供的至少一个描述信息，一个 描述信息与一个视频片段相匹配，一个视频文件由若干视频片段组成；
    视频确定模块，用于根据描述信息确定需要下载的视频片段；
    视频下载模块，用于向网络侧发送下载请求，所述下载请求用于供终端指示网络侧所需下载的视频片段。
  11. 根据权利要求10所述的设备，其特征在于，信息接收模块进一步用于接收在网络侧向终端提供的视频片段的播放列表中携带的所述描述信息。
  12. 根据权利要求11所述的设备，其特征在于，所述播放列表是按HLS协议播放视频文件时传输的播放列表。
  13. 一种非暂态计算机可读存储介质，其特征在于，所述非暂态计算机可读存储介质存储计算机指令，所述计算机指令用于使所述计算机执行权利要求1-6任一所述方法。
  14. 一种电子设备，其特征在于，包括：
    至少一个处理器；以及，
    与所述至少一个处理器通信连接的存储器；其中，
    所述存储器存储有可被所述一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行权利要求1-6任一所述方法。
  15. 一种计算机程序产品，其特征在于，所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算机程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，使所述计算机执行权利要求1-6任一所述的方法。
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