WO2017166496A1 - 一种下载视频文件和提供视频文件的方法及装置 - Google Patents

一种下载视频文件和提供视频文件的方法及装置 Download PDF

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Publication number
WO2017166496A1
WO2017166496A1 PCT/CN2016/088983 CN2016088983W WO2017166496A1 WO 2017166496 A1 WO2017166496 A1 WO 2017166496A1 CN 2016088983 W CN2016088983 W CN 2016088983W WO 2017166496 A1 WO2017166496 A1 WO 2017166496A1
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Prior art keywords
video
current network
network speed
notification
media server
Prior art date
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Ceased
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PCT/CN2016/088983
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English (en)
French (fr)
Inventor
伍志刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Le Holdings Beijing Co Ltd
Leshi Zhixin Electronic Technology Tianjin Co Ltd
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Le Holdings Beijing Co Ltd
Leshi Zhixin Electronic Technology Tianjin Co Ltd
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Priority to US15/247,604 priority Critical patent/US20170289009A1/en
Publication of WO2017166496A1 publication Critical patent/WO2017166496A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications
    • H04L65/402—Support for services or applications wherein the services involve a main real-time session and one or more additional parallel non-real time sessions, e.g. downloading a file in a parallel FTP session, initiating an email or combinational services
    • 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
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • 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
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234363—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream 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
    • 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
    • H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
    • 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
    • H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
    • H04N21/2402—Monitoring of the downstream path of the transmission network, e.g. bandwidth available
    • 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
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • 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
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44227—Monitoring of local network, e.g. connection or bandwidth variations; Detecting new devices in the local network
    • 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
    • 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

Definitions

  • the present application relates to the field of video technologies, and in particular, to a method and an apparatus for downloading a video file and providing a video file.
  • the playback of network video is a very important and core function of mobile terminals and TVs. Because the speed of the network is not very uniform, some access speeds are fast and some are slow. Moreover, the speed of the network is not too stable. For some access users sharing bandwidth, when the access user is used for a long time, the network speed drops significantly.
  • the video website In order to provide users with the best experience, the video website generally prepares a variety of definition sources for each video content, and provides a list for the user to select, according to the resolution from low to high, respectively, is extremely fast, smooth, SD, HD, Ultra Clear, 1080P, 4K, etc.
  • the inventors have found that the existing scheme is to select a high-definition video file for playback by default, and the default definition may not be suitable for the actual network speed. If the network speed is slow, it will cause "trying to load" continuously during playback, which seriously affects the user's viewing experience; if the network speed is good, it can actually support higher definition video file playback, but The audience did not enjoy the best viewing experience. Due to the instability of the network speed, the time is fast and slow, and the same resolution will be occasionally stuck, although the user can manually select the low-definition video content according to the prompt of "Network does not give force? Reduce the clarity try". Watching, but will continue to play low-definition video content, and will not automatically switch to the best resolution after the network speed is restored, reducing the user experience of watching network video.
  • the shortcoming of the prior art is that it is not possible to switch to a video file whose resolution matches the current network speed according to the current network speed.
  • the embodiment of the invention provides a method and a device for downloading a video file and providing a video file, which are used to solve the problem of the video file in the prior art that cannot be switched according to the current network speed and the current network speed.
  • An embodiment of the present invention provides a method for downloading a video file, including:
  • An embodiment of the present invention provides a method for providing a video file, including:
  • the video segment of the corresponding sharpness level is provided to the client.
  • An embodiment of the present invention provides an apparatus for downloading a video file, including:
  • a monitoring module for monitoring the current network speed
  • a sending module configured to send a notification to the media server, where the notification carries current network speed information
  • a downloading module configured to download a video segment provided by the media server, where one video file includes several of the video segments.
  • An embodiment of the present invention provides an apparatus for providing a video file, including:
  • a receiving module configured to receive a notification, where the notification carries current network speed information
  • a determining module configured to determine, according to a mapping relationship between a current network speed determined by the current network speed information and a clarity level of the video segment, a video segment corresponding to the clarity level downloaded by the client, where, a video file Including several of the video clips on the media server side
  • Each of the video clips having the same content stores at least two video clips of different resolution levels
  • Embodiments of the present invention provide an apparatus for downloading a video file, including a memory, one or more processors, and one or more programs, wherein the one or more programs are executed by the one or more processors Do the following:
  • Embodiments of the present invention provide an apparatus for providing a video file, including a memory, one or more processors, and one or more programs, wherein the one or more programs are executed by the one or more processors Do the following:
  • the video segment of the corresponding sharpness level is provided to the client.
  • An embodiment of the present invention provides a computer readable storage medium having stored thereon computer executable instructions that, in response to executing, cause an apparatus for downloading a video file to perform an operation, the operation comprising :
  • Embodiments of the present invention provide a computer readable storage medium having stored thereon computer executable instructions that, in response to execution, cause a device providing a video file to perform an operation, the operation comprising :
  • the video segment of the corresponding sharpness level is provided to the client.
  • a solution for downloading a video file and providing a video file is provided by the embodiment of the present invention.
  • the client monitors the current network speed and sends a notification carrying the current network speed information to the media server.
  • the receiver receives the video file. Notifying, and determining, according to a mapping relationship between a current network speed determined by the current network speed information and a clarity level of the video segment, a video segment corresponding to the clarity level downloaded by the client, and providing the client with the Corresponding clarity level video clip; then the client downloads the video clip provided by the media server.
  • the media server can obtain the current network speed of the client through the notification provided by the client, and accordingly provide the corresponding resolution level video clip for the client to download, the content of the video clip of different definition is the same, thereby The automatic switching of the definition of the video file can be achieved by cooperating with the network speed, and the viewing of the client is not affected, and the smooth playback of the video is ensured.
  • FIG. 1 is a flowchart of an embodiment of a method for downloading a video file according to an embodiment of the present invention
  • FIG. 2 is a flowchart of an embodiment of a method for providing a video file according to an embodiment of the present invention
  • FIG. 3 is a flowchart of an embodiment of adaptive video playback of network video according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of an apparatus for downloading a video file according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of an apparatus for providing a video file according to an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of another apparatus for downloading a video file according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a first computer readable storage medium according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of another apparatus for providing a video file according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a second computer readable storage medium in accordance with an embodiment of the present invention.
  • FIG. 1 is a flowchart of a method for downloading a video file. As shown in the figure, the following steps may be included:
  • Step 101 Monitor a current network speed.
  • Step 102 Send a notification to the media server, where the notification carries current network speed information.
  • Step 103 Download a video segment provided by the media server, where a video file includes a plurality of the video segments.
  • the network speed is unstable due to various reasons. For example, when the network bandwidth is shared, the number of access users increases, the network speed decreases, the number of access users decreases, the network speed increases, and the current network speed is monitored in real time. , you can get real-time network speed.
  • the current network speed is determined according to a buffer speed of a video clip of the buffer area.
  • the current network speed can be determined by monitoring the buffer speed of the video clip of the buffer area.
  • step 102 the monitored current network speed information is notified to the media server, so that the media server provides different resolution video segments for the client to download.
  • sending a notification to the media server may be sent when the current network speed is less than a set threshold or greater than a set threshold.
  • the monitored current network speed information needs to be notified to the media server. In order to enable the media server to provide different resolution video clips for the client to download.
  • the media server divides a video file into several video segments.
  • the media server can provide the client with a video clip of the corresponding definition according to the received notification.
  • the client can download video clips provided by the media server.
  • FIG. 2 is a flow chart of a method for providing a video file. As shown in the figure, the following steps may be included:
  • Step 201 Receive a notification, where the notification carries current network speed information.
  • Step 202 Determine, according to a mapping relationship between a current network speed determined by the current network speed information and a clarity level of the video segment, a video segment corresponding to the clarity level downloaded by the client, where the video file includes several The video segment stores at least two video segments of different resolution levels on each of the video segments having the same content on the media server side;
  • Step 203 Provide the video segment of the corresponding resolution level to the client.
  • the media server receives a notification sent by the client carrying the current network speed information, by which the media server can know the network speed on the client, thereby determining the clarity of the video segment accordingly.
  • the media server determines the current network speed according to the current network speed information carried in the notification, and because the pre-set current network speed has a mapping relationship with the clarity level of the video segment, the media server can be based on the current network speed.
  • a video segment corresponding to the resolution level is determined from the mapping relationship, and the video segment is provided for download by the client.
  • the media server divides a video file into several video segments, and each video segment with the same content stores at least two video segments of different resolution levels, so when switching the definition of the video segment, The video content is continuous, ensuring that the client is coherent when playing video.
  • mapping relationship between the current network speed and the clarity level of the video segment is:
  • the current network speed is positively correlated with the clarity level of the video clip.
  • x1 is the first threshold
  • x2 is the second threshold
  • v, v1, v2, and v3 are network speeds.
  • the buffer speed of the video clip of the buffer area may also be used instead of the network speed.
  • step 203 the video segment corresponding to the clarity level is provided to the client, which In this way, the client can download the video clip corresponding to the clarity level for viewing, and the user does not have to manually switch the resolution of the video.
  • FIG. 3 is a flow chart of an embodiment of network video adaptive definition playback. As shown in the figure, the following steps may be included:
  • Step 301 Monitor a buffering speed of a video segment of the current buffer area.
  • Step 302 If the buffering speed of the video segment of the current buffer area is less than a set threshold or greater than a set threshold, send a notification to the media server, where the notification carries buffering speed information of the video segment of the current buffer area;
  • Step 303 The media server receives the notification.
  • Step 304 Determine, according to a mapping relationship between a buffer speed of the current buffer video segment and a clarity level of the video segment, determined by the buffer speed information of the current buffer video segment in the notification, to determine a corresponding clarity level for the client to download.
  • Step 305 The media server provides a video clip corresponding to the clarity level to the client.
  • Step 306 The client downloads the video segment provided by the media server to the buffer area.
  • Step 307 The client player extracts the video clip from the buffer area for playing.
  • the media server divides a video file into several video segments, and each video segment with the same content stores at least two video segments of different resolution levels, and therefore, switching the video.
  • the video content is continuous, ensuring that the client is coherent when playing the video.
  • the downloaded video clip is stored in the cache area.
  • the required capacity of the cache is not large, because the cache uses the circular linked list structure to store data: by discarding the already played content, the stream can be reused.
  • the cache space is out to cache content that has not yet been played.
  • the media server end can know the current network speed of the client through the notification provided by the client, and accordingly provide the corresponding resolution level video segment for the client to download, and different definitions.
  • the content of the video clip is the same, so that the automatic switching of the definition of the video file can be achieved by cooperating with the network speed, and the viewing of the client is not affected, and the smooth playback of the video is ensured.
  • an embodiment of the present invention further provides an apparatus for downloading a video file and a device for providing a video file, and a method for downloading a video file and a method for providing a video file
  • the method is similar, so the implementation of these devices can be referred to the implementation of the method, and the repeated description will not be repeated.
  • the device may include:
  • a monitoring module 401 configured to monitor a current network speed
  • the sending module 402 is configured to send a notification to the media server, where the notification carries current network speed information
  • the downloading module 403 is configured to download a video segment provided by the media server, where a video file includes a plurality of the video segments.
  • the monitoring module may be further configured to monitor the current network speed according to the buffering speed of the video clip of the buffer area.
  • the sending module may be further configured to send a notification to the media server when the current network speed is less than a set threshold or greater than a set threshold.
  • FIG. 5 is a schematic structural diagram of an apparatus for providing a video file. As shown in the figure, the apparatus may include:
  • the receiving module 501 is configured to receive a notification, where the notification carries current network speed information
  • the determining module 502 is configured to determine, according to the mapping relationship between the current network speed determined by the current network speed information and the clarity level of the video segment, a video segment corresponding to the clarity level downloaded by the client, where, a video
  • the file includes a plurality of the video segments, and each video segment having the same content on the media server side stores at least two video segments of different definition levels;
  • a module 503 is provided for providing the video segment of the corresponding sharpness level to the client.
  • the determining module is further configured to determine, according to the positive correlation between the current network speed determined by the current network speed information and the clarity level of the video segment, the video clip corresponding to the clarity level downloaded by the client. .
  • FIG. 6 is a schematic structural diagram of another apparatus for downloading a video file according to an embodiment of the present invention, including a memory 61, one or more processors 62, and one or more programs. 63, wherein the one or more programs 63, when executed by the one or more processors 62, perform the operations of: monitoring a current network speed; transmitting a notification to the media server, the notification carrying current network speed information; Downloading a video clip provided by the media server, wherein one video file includes a plurality of the video clips.
  • Embodiments of the present invention also provide a computer readable storage medium having stored thereon computer executable instructions that, in response to executing, cause an apparatus for downloading a video file to perform an operation, the operation
  • the method includes: monitoring a current network speed; sending a notification to the media server, the notification carrying current network speed information; downloading a video segment provided by the media server, wherein one video file includes several of the video segments.
  • a computer program product 72 is stored on a computer readable storage medium 71, which may be any combination of one or more readable mediums, for example, a signal bearing medium 73, a computer a readable medium 74, a recordable medium 75, a communication medium 76, etc., the signal bearing medium 73 storing at least one for monitoring a current network speed; and for transmitting a notification to the media server, the notification carrying current network speed information And for downloading a video segment provided by the media server, wherein one video file includes several of the video segments.
  • FIG. 8 is a schematic structural diagram of another apparatus for providing a video file according to an embodiment of the present invention, including a memory 81, one or more processors 82, and one or more programs 83, wherein the one or The plurality of programs 83, when executed by the one or more processors 82, perform operations of receiving a notification, the notification carrying current network speed information, and a current network speed and video segment determined from the current network speed information.
  • An embodiment of the present invention further provides another computer readable storage medium having stored thereon computer executable instructions that, in response to executing, cause a device providing a video file to perform an operation,
  • the operation includes: receiving a notification, the notification carrying current network speed information; determining a corresponding resolution for downloading by the client according to a mapping relationship between a current network speed determined according to the current network speed information and a clarity level of the video segment Wait a video clip of a level, wherein a video file includes a plurality of the video clips, and each video clip having the same content on the media server side stores at least two video clips of different resolution levels; providing the corresponding to the client A video clip of clarity level.
  • a computer program product 92 is stored on a computer readable storage medium 91, which may be any combination of one or more readable mediums, for example, a signal bearing medium 93, a computer a readable medium 94, a recordable medium 95, a communication medium 96, etc., the signal bearing medium 93 storing at least one for receiving a notification, the notification carrying current network speed information, and configured to determine according to the current network speed information a mapping relationship between the current network speed and the clarity level of the video clip, determining a video clip of a corresponding sharpness level for download by the client, wherein a video file includes a plurality of the video clips, each on the media server side A video clip of the same content stores at least two video clips of different definition levels; and a video clip for providing the corresponding level of clarity to the client.
  • a computer readable storage medium 91 which may be any combination of one or more readable mediums, for example, a signal bearing medium 93, a computer a readable medium 94, a record
  • 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.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Databases & Information Systems (AREA)
  • Human Computer Interaction (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

一种下载视频文件和提供视频文件的方法及装置，包括：在客户端，监控当前网络速度；向媒体服务器发送通知，所述通知携带当前网络速度信息；下载媒体服务器提供的视频片段，其中，一个视频文件包括若干所述视频片段。在媒体服务器端，接收通知；根据所述当前网络速度信息确定的当前网络速度与视频片段的清晰度等级之间的映射关系，确定供客户端下载的对应的清晰度等级的视频片段，其中，一个视频文件包括若干所述视频片段，在媒体服务器端上每一个内容相同的视频片段至少存储有两种不同清晰度等级的视频片段；向客户端提供对应的清晰度等级的视频片段。采用本发明可以实现视频文件清晰度的自动切换。

Description

一种下载视频文件和提供视频文件的方法及装置
本申请要求在2016年3月31日提交中国专利局、申请号为201610201754.2、发明名称为“一种下载视频文件和提供视频文件的方法及装置”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
本申请涉及视频技术领域，尤其涉及一种下载视频文件和提供视频文件的方法及装置。
背景技术
网络视频的播放(包括点播和直播)是移动终端和电视非常重要和核心的功能。由于网络的速度不是很统一，有的接入速度快，有的速度慢。而且网络的速度也不是太稳定，对于一些共享带宽的接入用户，接入用户多时，网速下降明显。为了提供给用户最好的体验，视频网站一般为每一份视频内容同时准备了多种清晰度的片源，并提供一个列表供用户选择，按分辨率从低到高分别是极速、流畅、标清、高清、超清、1080P、4K等。
发明人在实现本发明的过程中发现，现有的方案为默认选择高清的视频文件进行播放，默认的清晰度也许不适合实际的网络速度。如果网速较慢，就会引起播放中不停地提示“努力加载中...”，严重影响用户的观看体验；如果网速很好，其实可以支持更高清晰度的视频文件播放，但观众没有享受到最佳的观看体验。由于网速的不稳定，时快时慢，固定为同一种清晰度也会偶尔卡顿，虽然用户可以根据“网络不给力？降低清晰度试试看”的提示来手动选择低清晰度的视频内容进行观看，但之后一直会播放低清晰度的视频内容，网速恢复后也不会自动切换到最佳的清晰度，降低了用户观看网络视频的体验。
综上，现有技术的不足在于：不能根据当前网络速度切换成清晰度与当前网络速度相匹配的视频文件。
发明内容
本发明实施例提供一种下载视频文件和提供视频文件的方法及装置，用以解决现有技术中不能根据当前网络速度切换和当前网络速度匹配的清晰度的视频文件的问题。
本发明实施例提供一种下载视频文件的方法，包括：
监控当前网络速度；
向媒体服务器发送通知，所述通知携带当前网络速度信息；
下载所述媒体服务器提供的视频片段，其中，一个视频文件包括若干所述视频片段。
本发明实施例提供一种提供视频文件的方法，包括：
接收通知，所述通知携带当前网络速度信息；
根据所述当前网络速度信息确定的当前网络速度与视频片段的清晰度等级之间的映射关系，确定供客户端下载的对应的清晰度等级的视频片段，其中，一个视频文件包括若干所述视频片段，在媒体服务器端上每一个内容相同的视频片段至少存储有两种不同清晰度等级的视频片段；
向客户端提供所述对应的清晰度等级的视频片段。
本发明实施例提供一种下载视频文件的装置，包括：
监控模块，用于监控当前网络速度；
发送模块，用于向媒体服务器发送通知，所述通知携带当前网络速度信息；
下载模块，用于下载所述媒体服务器提供的视频片段，其中，一个视频文件包括若干所述视频片段。
本发明实施例提供一种提供视频文件的装置，包括：
接收模块，用于接收通知，所述通知携带当前网络速度信息；
确定模块，用于根据所述当前网络速度信息确定的当前网络速度与视频片段的清晰度等级之间的映射关系，确定供客户端下载的对应的清晰度等级的视频片段，其中，一个视频文件包括若干所述视频片段，在媒体服务器端 上每一个内容相同的视频片段至少存储有两种不同清晰度等级的视频片段；
提供模块，用于向客户端提供所述对应的清晰度等级的视频片段。
本发明实施例提供一种下载视频文件的装置，包括存储器、一个或多个处理器以及一个或多个程序，其中，所述一个或多个程序在由所述一个或多个处理器执行时执行下述操作：
监控当前网络速度；
向媒体服务器发送通知，所述通知携带当前网络速度信息；
下载所述媒体服务器提供的视频片段，其中，一个视频文件包括若干所述视频片段。
本发明实施例提供一种提供视频文件的装置，包括存储器、一个或多个处理器以及一个或多个程序，其中，所述一个或多个程序在由所述一个或多个处理器执行时执行下述操作：
接收通知，所述通知携带当前网络速度信息；
根据所述当前网络速度信息确定的当前网络速度与视频片段的清晰度等级之间的映射关系，确定供客户端下载的对应的清晰度等级的视频片段，其中，一个视频文件包括若干所述视频片段，在媒体服务器端上每一个内容相同的视频片段至少存储有两种不同清晰度等级的视频片段；
向客户端提供所述对应的清晰度等级的视频片段。
本发明实施例提供一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机可执行指令，所述计算机可执行指令响应于执行使得下载视频文件的装置执行操作，所述操作包括：
监控当前网络速度；
向媒体服务器发送通知，所述通知携带当前网络速度信息；
下载所述媒体服务器提供的视频片段，其中，一个视频文件包括若干所述视频片段。
本发明实施例提供一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机可执行指令，所述计算机可执行指令响应于执行使得提供视频文件的装置执行操作，所述操作包括：
接收通知，所述通知携带当前网络速度信息；
根据所述当前网络速度信息确定的当前网络速度与视频片段的清晰度等级之间的映射关系，确定供客户端下载的对应的清晰度等级的视频片段，其中，一个视频文件包括若干所述视频片段，在媒体服务器端上每一个内容相同的视频片段至少存储有两种不同清晰度等级的视频片段；
向客户端提供所述对应的清晰度等级的视频片段。
本发明实施例提供的一种下载视频文件和提供视频文件的方案，在客户端，监控当前网络速度，并将携带有当前网络速度信息的通知发送到媒体服务器端；在媒体服务器端，接收该通知，并根据所述当前网络速度信息确定的当前网络速度与视频片段的清晰度等级之间的映射关系，确定供客户端下载的对应的清晰度等级的视频片段，并向客户端提供所述对应的清晰度等级的视频片段；然后客户端下载媒体服务器提供的视频片段。由于媒体服务器端能够通过客户端提供的通知获知的客户端当前网络速度，并据此提供相应的清晰度等级的视频片段供客户端下载，而不同清晰度的视频片段的内容是一样的，从而能够通过配合网络速度来实现视频文件清晰度的自动切换的同时，不会影响客户端的观看，保证了视频播放的流畅。
附图说明
图1为本发明实施例中下载视频文件的方法实施例流程图；
图2为本发明实施例中提供视频文件的方法实施例流程图；
图3为本发明实施例中网络视频自适应清晰度播放实施例流程图；
图4为本发明实施例中下载视频文件的装置实施例结构示意图；
图5为本发明实施例中提供视频文件的装置实施例结构示意图；
图6为本发明实施例中另外一种下载视频文件的装置的结构示意图；
图7为本发明实施例中第一种计算机可读存储介质示意图；
图8为本发明实施中另外一种提供视频文件的装置结构示意图；
图9为本发明实施例中第二种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。
首先对在客户端上实施的下载视频文件的方法进行具体说明。
图1为下载视频文件的方法实施例流程图，如图所示，可以包括如下步骤：
步骤101、监控当前网络速度；
步骤102、向媒体服务器发送通知，所述通知携带当前网络速度信息；
步骤103、下载所述媒体服务器提供的视频片段，其中，一个视频文件包括若干所述视频片段。
对于步骤101的实施，由于各种原因会造成网络速度不稳定，比如，共享网络带宽时，接入用户增多，网络速度下降；接入用户减少，网络速度加快等，对当前网络速度进行实时监控，可以获得实时的网络速度。
实施中，所述当前网络速度是根据缓存区视频片段的缓冲速度确定的。
具体的，网络速度下降时，缓存区视频片段的缓冲速度降低；网络速度加快时，缓存区视频片段的缓冲速度加快，因而，可以通过监控缓存区视频片段的缓冲速度来确定当前网络速度。
对于步骤102的实施，将上述监控到的当前网络速度信息通知给媒体服务器，以使媒体服务器提供不同清晰度视频片段供客户端下载。
实施中，向媒体服务器发送通知可以是在当前网络速度小于设定阈值或大于设定阈值时发送的。
具体的。若当前网络速度小于设定阈值或大于设定阈值，则说明当前网络速度不稳定且已经达到了需要更换不同清晰度视频片段的程度，因此需要将监控到的当前网络速度信息通知给媒体服务器，以使媒体服务器提供不同清晰度视频片段供客户端下载。
对于步骤103的实施，流媒体技术中，媒体服务器端将一个视频文件分割为若干视频片段。媒体服务器可以根据收到的通知为客户端提供相应清晰度的视频片段。客户端可以下载媒体服务器提供的视频片段。
在介绍了客户端侧的实施方式后，下面对在媒体服务器端上实施的提供视频文件的方法进行具体说明。
图2为提供视频文件的方法实施例流程图，如图所示，可以包括如下步骤：
步骤201、接收通知，所述通知携带当前网络速度信息；
步骤202、根据所述当前网络速度信息确定的当前网络速度与视频片段的清晰度等级之间的映射关系，确定供客户端下载的对应的清晰度等级的视频片段，其中，一个视频文件包括若干所述视频片段，在媒体服务器端上每一个内容相同的视频片段至少存储有两种不同清晰度等级的视频片段；
步骤203、向客户端提供所述对应的清晰度等级的视频片段。
对于步骤201的实施，媒体服务器接收客户端发送的携带有当前网络速度信息的通知，通过该通知使得媒体服务器能够获知客户端上的网络速度，从而得以据此确定视频片段的清晰度。
对于步骤202的实施，媒体服务器根据通知中携带的当前网络速度信息确定当前网络速度，又因为预设有当前网络速度与视频片段的清晰度等级有映射关系，因此，媒体服务器可以根据当前网络速度与该映射关系确定对应的清晰度等级的视频片段，并提供该视频片段供客户端下载。流媒体技术中，媒体服务器端将一个视频文件分割为若干视频片段，且每一个内容相同的视频片段至少存储有两种不同清晰度等级的视频片段，因此，在切换视频片段的清晰度时，视频内容是连续的，保证了客户端在播放视频时内容连贯。
实施中，所述当前网络速度与视频片段的清晰度等级之间的映射关系为：
当前网络速度与视频片段的清晰度等级为正相关关系。
具体的，当前网络速度与视频片段的清晰度等级之间为正相关关系，当前网络速度快的情况下对应清晰度等级高的视频片段；当前网络速度慢的情况下对应清晰度等级低的视频片段。假设媒体服务器端存储三种清晰度等级的片源，标清、高清以及超清，并将网络速度按下面公式进行分类：
Figure PCTCN2016088983-appb-000001
其中，x1为第一阈值、x2为第二阈值，v、v1、v2、v3为网络速度。
当v＝v1，对应清晰度等级为标清的视频片段，当v＝v2，对应清晰度等级为高清的视频片段，当v＝v3，对应清晰度等级为超清的视频片段。具体实施中，也可以用缓存区视频片段的缓冲速度代替网络速度。
对于步骤203的实施，向客户端提供对应的清晰度等级的视频片段，这 样，客户端可以下载到对应的清晰度等级的视频片段进行观看，且用户则不必手动切换视频的清晰度。
为了更清楚地理解本发明，下面以具体实施例进行说明。
图3为网络视频自适应清晰度播放实施例流程图，如图所示，可以包括如下步骤：
步骤301、监控当前缓存区视频片段的缓冲速度；
步骤302、若当前缓存区视频片段的缓冲速度小于设定阈值或大于设定阈值，向媒体服务器发送通知，该通知携带当前缓存区视频片段的缓冲速度信息；
步骤303、媒体服务器接收通知；
步骤304、根据通知中的当前缓存区视频片段的缓冲速度信息确定的当前缓存区视频片段的缓冲速度与视频片段的清晰度等级之间的映射关系，确定供客户端下载的对应的清晰度等级的视频片段；
步骤305、媒体服务器向客户端提供对应的清晰度等级的视频片段；
步骤306、客户端下载媒体服务器提供的视频片段到缓存区；
步骤307、客户端播放器从缓存区取出视频片段进行播放。
对于步骤304的实施，流媒体技术中，媒体服务器端将一个视频文件分割为若干视频片段，且每一个内容相同的视频片段至少存储有两种不同清晰度等级的视频片段，因此，在切换视频片段的清晰度时，视频内容是连续的，保证了客户端在播放视频时内容连贯。
对于步骤306的实施，将下载的视频片段存储在高速缓存区，通常高速缓存所需容量并不大，因为高速缓存使用环形链表结构来存储数据：通过丢弃已经播放的内容，流可以重新利用空出的高速缓存空间来缓存后续尚未播放的内容。
由此可见，在本实施例中，由于媒体服务器端能够通过客户端提供的通知获知的客户端当前网络速度，并据此提供相应的清晰度等级的视频片段供客户端下载，而不同清晰度的视频片段的内容是一样的，从而能够通过配合网络速度来实现视频文件清晰度的自动切换的同时，不会影响客户端的观看，保证了视频播放的流畅。
需要说明的是，为了支持自适应清晰度播放，媒体服务器上的playlist(播放列表)内容的组织和传送也需要相应的修改。对于支持自适应播放的播放 器，提供全部清晰度内容的playlist，而现有的不支持自适应播放的播放器，则仍然提供单一清晰度内容的playlist，保持兼容。
基于同一发明构思，本发明实施例中还提供了一种下载视频文件的装置和一种提供视频文件的装置，由于这些设备解决问题的原理与一种下载视频文件的方法和一种提供视频文件的方法相似，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4为下载视频文件的装置实施例结构示意图，如图所示，装置中可以包括：
监控模块401，用于监控当前网络速度；
发送模块402，用于向媒体服务器发送通知，所述通知携带当前网络速度信息；
下载模块403，用于下载所述媒体服务器提供的视频片段，其中，一个视频文件包括若干所述视频片段。
实施中，监控模块还可以进一步用于根据缓存区视频片段的缓冲速度监控当前网络速度。
实施中，发送模块还可以进一步用于在当前网络速度小于设定阈值或大于设定阈值时，向媒体服务器发送通知。
图5为提供视频文件的装置实施例结构示意图，如图所示，装置中可以包括：
接收模块501，用于接收通知，所述通知携带当前网络速度信息；
确定模块502，用于根据所述当前网络速度信息确定的当前网络速度与视频片段的清晰度等级之间的映射关系，确定供客户端下载的对应的清晰度等级的视频片段，其中，一个视频文件包括若干所述视频片段，在媒体服务器端上每一个内容相同的视频片段至少存储有两种不同清晰度等级的视频片段；
提供模块503，用于向客户端提供所述对应的清晰度等级的视频片段。
实施中，确定模块还可以进一步用于根据所述当前网络速度信息确定的当前网络速度与视频片段的清晰度等级之间的正相关关系，确定供客户端下载的对应的清晰度等级的视频片段。
如图6所示，为本发明实施例提供的另外一种下载视频文件的装置的结构示意图，包括存储器61、一个或多个处理器62以及一个或多个程序 63，其中，所述一个或多个程序63在由所述一个或多个处理器62执行时执行下述操作：监控当前网络速度；向媒体服务器发送通知，所述通知携带当前网络速度信息；下载所述媒体服务器提供的视频片段，其中，一个视频文件包括若干所述视频片段。
本发明实施例还提供一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机可执行指令，所述计算机可执行指令响应于执行使得下载视频文件的装置执行操作，所述操作包括：监控当前网络速度；向媒体服务器发送通知，所述通知携带当前网络速度信息；下载所述媒体服务器提供的视频片段，其中，一个视频文件包括若干所述视频片段。
如图7所示，计算机可读存储介质71上存储有计算机程序产品72，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73，计算机可读介质74，可记录介质75，通信介质76等，所述信号承载介质73中存储有至少一个用于监控当前网络速度；以及用于向媒体服务器发送通知，所述通知携带当前网络速度信息，用于下载所述媒体服务器提供的视频片段，其中，一个视频文件包括若干所述视频片段。
如图8所示，为本发明实施例提供的另外一种提供视频文件的装置的结构示意图，包括存储器81、一个或多个处理器82以及一个或多个程序83，其中，所述一个或多个程序83在由所述一个或多个处理器82执行时执行下述操作：接收通知，所述通知携带当前网络速度信息；根据所述当前网络速度信息确定的当前网络速度与视频片段的清晰度等级之间的映射关系，确定供客户端下载的对应的清晰度等级的视频片段，其中，一个视频文件包括若干所述视频片段，在媒体服务器端上每一个内容相同的视频片段至少存储有两种不同清晰度等级的视频片段；向客户端提供所述对应的清晰度等级的视频片段。
本发明实施例还提供另外一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机可执行指令，所述计算机可执行指令响应于执行使得提供视频文件的装置执行操作，所述操作包括：接收通知，所述通知携带当前网络速度信息；根据所述当前网络速度信息确定的当前网络速度与视频片段的清晰度等级之间的映射关系，确定供客户端下载的对应的清晰度等 级的视频片段，其中，一个视频文件包括若干所述视频片段，在媒体服务器端上每一个内容相同的视频片段至少存储有两种不同清晰度等级的视频片段；向客户端提供所述对应的清晰度等级的视频片段。
如图9所示，计算机可读存储介质91上存储有计算机程序产品92，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93，计算机可读介质94，可记录介质95，通信介质96等，所述信号承载介质93中存储有至少一个用于接收通知，所述通知携带当前网络速度信息；用于根据所述当前网络速度信息确定的当前网络速度与视频片段的清晰度等级之间的映射关系，确定供客户端下载的对应的清晰度等级的视频片段，其中，一个视频文件包括若干所述视频片段，在媒体服务器端上每一个内容相同的视频片段至少存储有两种不同清晰度等级的视频片段；以及用于向客户端提供所述对应的清晰度等级的视频片段。
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 (14)

  1. 一种下载视频文件的方法，其特征在于，包括：
    监控当前网络速度；
    向媒体服务器发送通知，所述通知携带当前网络速度信息；
    下载所述媒体服务器提供的视频片段，其中，一个视频文件包括若干所述视频片段。
  2. 根据权利要求1所述的方法，其特征在于，所述当前网络速度是根据缓存区视频片段的缓冲速度确定的。
  3. 根据权利要求1或2所述的方法，其特征在于，向媒体服务器发送通知是在当前网络速度小于设定阈值或大于设定阈值时发送的。
  4. 一种提供视频文件的方法，其特征在于，包括：
    接收通知，所述通知携带当前网络速度信息；
    根据所述当前网络速度信息确定的当前网络速度与视频片段的清晰度等级之间的映射关系，确定供客户端下载的对应的清晰度等级的视频片段，其中，一个视频文件包括若干所述视频片段，在媒体服务器端上每一个内容相同的视频片段至少存储有两种不同清晰度等级的视频片段；
    向客户端提供所述对应的清晰度等级的视频片段。
  5. 根据权利要求4所述的方法，其特征在于，所述当前网络速度与视频片段的清晰度等级之间的映射关系为：
    当前网络速度与视频片段的清晰度等级为正相关关系。
  6. 一种下载视频文件的装置，其特征在于，包括：
    监控模块，用于监控当前网络速度；
    发送模块，用于向媒体服务器发送通知，所述通知携带当前网络速度信息；
    下载模块，用于下载所述媒体服务器提供的视频片段，其中，一个视频文件包括若干所述视频片段。
  7. 根据权利要求6所述的装置，其特征在于，监控模块进一步用于根据 缓存区视频片段的缓冲速度监控当前网络速度。
  8. 根据权利要求6或7所述的装置，其特征在于，发送模块进一步用于在当前网络速度小于设定阈值或大于设定阈值时，向媒体服务器发送通知。
  9. 一种提供视频文件的装置，其特征在于，包括：
    接收模块，用于接收通知，所述通知携带当前网络速度信息；
    确定模块，用于根据所述当前网络速度信息确定的当前网络速度与视频片段的清晰度等级之间的映射关系，确定供客户端下载的对应的清晰度等级的视频片段，其中，一个视频文件包括若干所述视频片段，在媒体服务器端上每一个内容相同的视频片段至少存储有两种不同清晰度等级的视频片段；
    提供模块，用于向客户端提供所述对应的清晰度等级的视频片段。
  10. 根据权利要求9所述的装置，其特征在于，确定模块进一步用于根据所述当前网络速度信息确定的当前网络速度与视频片段的清晰度等级之间的正相关关系，确定供客户端下载的对应的清晰度等级的视频片段。
  11. 一种下载视频文件的装置，其特征在于，包括存储器、一个或多个处理器以及一个或多个程序，其中，所述一个或多个程序在由所述一个或多个处理器执行时执行下述操作：
    监控当前网络速度；
    向媒体服务器发送通知，所述通知携带当前网络速度信息；
    下载所述媒体服务器提供的视频片段，其中，一个视频文件包括若干所述视频片段。
  12. 一种提供视频文件的装置，其特征在于，包括存储器、一个或多个处理器以及一个或多个程序，其中，所述一个或多个程序在由所述一个或多个处理器执行时执行下述操作：
    接收通知，所述通知携带当前网络速度信息；
    根据所述当前网络速度信息确定的当前网络速度与视频片段的清晰度等级之间的映射关系，确定供客户端下载的对应的清晰度等级的视频片段，其中，一个视频文件包括若干所述视频片段，在媒体服务器端上每一个内容相同的视频片段至少存储有两种不同清晰度等级的视频片段；
    向客户端提供所述对应的清晰度等级的视频片段。
  13. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质上存储有计算机可执行指令，所述计算机可执行指令响应于执行使得下载视频文件的装置执行操作，所述操作包括：
    监控当前网络速度；
    向媒体服务器发送通知，所述通知携带当前网络速度信息；
    下载所述媒体服务器提供的视频片段，其中，一个视频文件包括若干所述视频片段。
  14. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质上存储有计算机可执行指令，所述计算机可执行指令响应于执行使得提供视频文件的装置执行操作，所述操作包括：
    接收通知，所述通知携带当前网络速度信息；
    根据所述当前网络速度信息确定的当前网络速度与视频片段的清晰度等级之间的映射关系，确定供客户端下载的对应的清晰度等级的视频片段，其中，一个视频文件包括若干所述视频片段，在媒体服务器端上每一个内容相同的视频片段至少存储有两种不同清晰度等级的视频片段；
    向客户端提供所述对应的清晰度等级的视频片段。
PCT/CN2016/088983 2016-03-31 2016-07-06 一种下载视频文件和提供视频文件的方法及装置 Ceased WO2017166496A1 (zh)

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