WO2016091000A1 - Procédé de commutation de taux de code dynamique, serveur et système - Google Patents

Procédé de commutation de taux de code dynamique, serveur et système Download PDF

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Publication number
WO2016091000A1
WO2016091000A1 PCT/CN2015/091470 CN2015091470W WO2016091000A1 WO 2016091000 A1 WO2016091000 A1 WO 2016091000A1 CN 2015091470 W CN2015091470 W CN 2015091470W WO 2016091000 A1 WO2016091000 A1 WO 2016091000A1
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WIPO (PCT)
Prior art keywords
video
download
code rate
server
rate
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Application number
PCT/CN2015/091470
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English (en)
Chinese (zh)
Inventor
江中央
王甜甜
Original Assignee
深圳Tcl数字技术有限公司
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Publication of WO2016091000A1 publication Critical patent/WO2016091000A1/fr

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Classifications

    • 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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/845—Structuring of content, e.g. decomposing content into time segments

Definitions

  • the present invention relates to the field of video playback technologies, and in particular, to a dynamic rate switching method, a server, and a system.
  • the server is the same network video program, providing a variety of bit rate video files, during the video playback process
  • the video playback terminal dynamically switches the code rate of the played video according to the real-time network bandwidth change of the user: when the user network bandwidth becomes larger, the video playback terminal selects a high-rate video fragment file on the server for playing; When the user's network bandwidth becomes small, the video playback terminal selects a low-rate video fragment file on the server to play, so as to avoid the occurrence of the jamming phenomenon caused by the data of the video playback terminal being exhausted.
  • the current mainstream rate adaptive switching technology not only requires the server to provide video fragment files of multiple code rates of the same program, but also needs a video playing terminal in the process of solving the fluctuation of the network bandwidth and causing the network video picture to be stuck.
  • adaptive dynamic rate switching can be implemented according to changes in the user's network bandwidth. For example, there are 3 different bitrates (250kbit/s) on the server. 500kbit/s, 1Mbit/s) file and mpd (media presentation Description) file. Each different rate file consists of multiple shards, one every 10s, At the same time, there is a description file mpd for the multimedia video program on the server, and the mpd file is used to describe the bit rate information and the playing time information of different fragment files.
  • the video playback terminal After the program is started, the video playback terminal first downloads the mpd file, and learns from the mpd file how many video segment files of different code rates are present in the current program, and the bit rate, segment playback length and points of each video segment file.
  • the information such as the download address and the video playback terminal respectively download corresponding video segments of different code rates according to the current download speed and the download progress. If the playback is just started, select the slice download with the minimum code rate of 0-10s clock (250kbit/s). When the slice is downloaded, Calculate the network download rate if the download rate is greater than (500kbit/s) , select the 500kbit/s slice download in 11-20s. It can be seen from the above process of rate switching that the video playing terminal needs to cooperate with the server in the whole transmission process according to its own network condition, and supports the same adaptive dynamic rate switching technology.
  • the main object of the present invention is to provide a dynamic rate switching method, server and system to solve the technical problem that the server cannot be compatible with various video playing terminals.
  • the present invention provides a dynamic rate switching method, and the method includes the following steps:
  • the server obtains a download code rate of the current video segment in which the video playback terminal selects to download the program in the server;
  • the slice header of the next video slice to be downloaded by the video play terminal and the slice end of the current video slice are spliced on the server end to generate a spliced video file for the video play terminal to progressively download and play the spliced video file.
  • the step of obtaining, by the server, a download rate of the current video segment of the video playback terminal that selects to download the program in the server includes:
  • the server obtains the initial fragment with the smallest code rate in the selected program for downloading by the video playing terminal, and obtains the code of the video playing terminal. The download rate of the initial fragment with the lowest rate.
  • the step of obtaining, by the server, a download rate of the current video segment of the video playback terminal that selects to download the program in the server includes:
  • the server obtains the download code rate of the current video segment according to the size of the current video segment in which the video playback terminal selects to download the program in the server and the time when the current video segment is downloaded.
  • the step of dynamically adjusting the code rate of the next video segment in the video playback terminal to be downloaded according to the download code rate includes:
  • a video slice is used as the next video slice to be downloaded by the video playback terminal.
  • the present invention further provides a server that dynamically switches a code rate, and the server includes:
  • An obtaining module configured to obtain a downloading code rate of a current video segment in which the video playing terminal selects to download the program in the server;
  • An adjustment module configured to dynamically adjust, according to the download code rate, a code rate of a next video segment of the video playback terminal to be downloaded in the server;
  • the splicing module is configured to splicing the slice header of the next video slice to be downloaded by the video play terminal and the slice end of the current video slice to generate a spliced video file for the video play terminal to progressively download and play the spliced video file.
  • the obtaining module is further configured to:
  • the current video fragment is an initial fragment of the program selected by the video playing terminal in the server
  • the initial fragment with the smallest code rate in the selected program is obtained for downloading by the video playing terminal, and the code rate of the video playing terminal is obtained.
  • the download rate of the smallest initial shard is obtained.
  • the obtaining module is further configured to:
  • the download code rate of the current video slice is obtained according to the size of the current video slice selected by the video play terminal in the server to download the program and the time when the current video slice is downloaded.
  • the adjustment module is further configured to:
  • a video slice is used as the next video slice to be downloaded by the video playback terminal.
  • the present invention further provides a system for dynamically switching code rates, the system comprising: a server and a video playing terminal, wherein
  • the server is configured to obtain a download rate of a current video segment of the video playback terminal that selects to download the program in the server; and dynamically adjust, according to the download code rate, a code rate of the next video segment in the server to be downloaded; Splicing the slice header of the next video slice to be downloaded by the video play terminal and the slice end of the current video slice to generate a spliced video file;
  • the video playing terminal is configured to send a download request to the server, establish a download connection with the server, and perform progressive download and play on the spliced video file generated by the server.
  • the video playing terminal is further configured to:
  • the downloaded spliced video file is decoded and played.
  • the dynamic rate switching method, server and system according to the present invention according to the download rate of the current video segment of the server selected to download the program by the video playing terminal, the server dynamically adjusts the video playing terminal to download the next video segment.
  • the code rate is spliced at the server end with the slice header of the next video segment to be downloaded by the video playback terminal and the end of the current video segment, thereby realizing the dynamic switching of the video playback terminal to download different video segmentation code rates, and the entire handover
  • the process is completed by the server, and the video playing terminal only needs to gradually download and play the file after the server is spliced, so that the same dynamic bit rate switching technology can be realized without the video playing terminal and the server supporting the same. Dynamic bit rate switching greatly improves the compatibility between the server and various video playback terminals, and can make the download and playback of the player side smoother.
  • FIG. 1 is a schematic flow chart of an embodiment of a dynamic bit rate switching method according to the present invention.
  • FIG. 2 is a schematic diagram of functional modules of an embodiment of a server for dynamically switching code rates according to the present invention
  • FIG. 3 is a schematic structural diagram of an embodiment of a system for dynamically switching code rates according to the present invention.
  • the video playing terminal may be a terminal having a video playing capability, such as a smart TV, a mobile phone, a PC, etc., and is not limited herein.
  • the invention provides a dynamic rate switching method.
  • FIG. 1 is a schematic flowchart diagram of an embodiment of a dynamic bit rate switching method according to an embodiment of the present invention.
  • the dynamic rate switching method includes:
  • Step S10 The server acquires a download code rate of a current video segment in which the video playback terminal selects to download the program in the server;
  • the server stores a plurality of slice files of different code rates of the same program, that is, the same program of each different code rate is composed of a plurality of slice files, and for one program, each The time interval corresponds to a slice file of a bit rate.
  • the server can learn from the download request that the video playing terminal selects the downloaded program in the program that the video playing terminal selects, and the server can adjust the different code rate of the program selected by the video playing terminal to download the program. Fragment file for download by video playback terminal.
  • the server can obtain the download code rate of the current video segment in which the video play terminal selects to download the program in the server.
  • the current video slice selected by the video play terminal to download the program is saved on the server, and the server can know the size thereof.
  • the server records the time when the video playback terminal starts downloading to download and completes the current video segmentation, and calculates the download code of the current video segment according to the size of the current video segment and the time required to download the current video segmentation. Rate, the download rate directly reflects the current network status and download rate of the video player.
  • Step S20 dynamically adjusting, according to the download code rate, a code rate of a video clip terminal to download a next video slice in the server;
  • the video playing terminal After obtaining the download code rate of the current video segment by the video playing terminal, dynamically adjusting the code rate of the next video segment of the video playback terminal to be downloaded according to the download code rate: according to the download rate of the current video segment
  • the playing terminal needs to download different code rates of the next video segment in the server for selection, and select a next video segment that is smaller than the download rate and the code rate closest to the download rate as the video playing terminal needs to be downloaded.
  • Next video fragmentation Since the time interval between adjacent upper and lower two slice files in a program is very short, the video play terminal can be known according to the download code rate of the current video slice selected by the video playback terminal in the server to download the program. Current network status, and the network status of the video playing terminal generally does not change greatly in a short time interval.
  • the program saved on the selection server is smaller than the download code rate and the download code rate.
  • the next fragment file of the closest code rate is used as the next video fragment to be downloaded by the video playing terminal, which can ensure that the video playing terminal downloads the next video fragment smoothly, and can fully utilize the network bandwidth of the video playing terminal. Selecting the next slice file with the highest code rate in the network state of the video play terminal as the next video slice to download, ensuring the clarity of the video downloaded by the video play terminal.
  • Step S30 splicing the slice header of the next video segment to be downloaded by the video playback terminal and the slice header of the current video segment on the server end to generate a spliced video file for the video playback terminal to progressively download and play the spliced video file.
  • the slice header of the next video segment to be downloaded by the video playing terminal and the ending of the current video segment are spliced on the server end, thereby implementing the video playing terminal. Dynamic switching of downloading different video segmentation rate.
  • the video playback terminal selects the upper and lower video segments of the adjacent time interval in the downloaded program to be spliced to generate a spliced video file, and the video playback terminal can perform progressive download and play according to the generated spliced video file, which can be played. Download and play videos more smoothly.
  • the server dynamically adjusts the code rate of the video playback terminal to download the next video segment; and downloads the video playback terminal.
  • the slice header of a video segment is spliced with the end of the current video segment, thereby implementing dynamic switching of the video playback terminal to download different video segmentation code rates, and the entire switching process is completed by the server without the participation of the video playback terminal, and the video playback terminal Simply download and play the files that are spliced by the server, so that the dynamic bit rate switching can be realized without the video player and the server supporting the same dynamic bit rate switching technology, which greatly improves the server and various video playback. Compatibility between terminals.
  • step S10 may further include:
  • the server obtains the initial fragment with the smallest code rate in the selected program for downloading by the video playing terminal, and obtains the code of the video playing terminal. The download rate of the initial fragment with the lowest rate.
  • the current video fragment is the initial fragment selected by the video playing terminal to download the program, because the server cannot know the video playing terminal according to the download rate of the previous video fragment.
  • the network status the server directly selects the initial fragment with the smallest code rate in the program for the video playback terminal to start downloading. In this way, when the network state of the video playing terminal is unknown, the smoothness of the video segment file in the download server of the video playing terminal can be ensured to the maximum extent, and after the initial segment downloading is completed, the dynamic downloading rate according to the initial segmentation is dynamically performed. Adjusting the video playback terminal needs to download the bit rate of the next video segment in the server, which is more flexible and convenient.
  • the present invention further provides a server that dynamically switches code rates.
  • FIG. 2 is a schematic diagram of functional modules of an embodiment of a server for dynamically switching code rates according to the present invention.
  • the dynamically switching code rate server comprises:
  • the obtaining module 01 is configured to obtain a download code rate of a current video segment in which the video playback terminal selects to download the program in the server;
  • the server stores a plurality of slice files of different code rates of the same program, that is, the same program of each different code rate is composed of a plurality of slice files, and for one program, each time The interval corresponds to a slice file of a bit rate.
  • the server can learn from the download request that the video playing terminal selects the downloaded program in the program that the video playing terminal selects, and the server can adjust the different code rate of the program selected by the video playing terminal to download the program. Fragment file for download by video playback terminal.
  • the server can obtain the download code rate of the current video segment in which the video play terminal selects to download the program in the server.
  • the current video slice selected by the video play terminal to download the program is saved on the server, and the server can know the size thereof.
  • the server records the time when the video playback terminal starts downloading to download and completes the current video segmentation, and calculates the download code of the current video segment according to the size of the current video segment and the time required to download the current video segmentation. Rate, the download rate directly reflects the current network status and download rate of the video player.
  • the adjusting module 02 is configured to dynamically adjust, according to the download code rate, a code rate of a next video slice in the server to be downloaded by the video playing terminal;
  • the video playing terminal After obtaining the download code rate of the current video segment by the video playing terminal, dynamically adjusting the code rate of the next video segment of the video playback terminal to be downloaded according to the download code rate: according to the download rate of the current video segment
  • the playing terminal needs to download different code rates of the next video segment in the server for selection, and select a next video segment that is smaller than the download rate and the code rate closest to the download rate as the video playing terminal needs to be downloaded.
  • Next video fragmentation Since the time interval between adjacent upper and lower two slice files in a program is very short, the video play terminal can be known according to the download code rate of the current video slice selected by the video playback terminal in the server to download the program. Current network status, and the network status of the video playing terminal generally does not change greatly in a short time interval.
  • the program saved on the selection server is smaller than the download code rate and the download code rate.
  • the next fragment file of the closest code rate is used as the next video fragment to be downloaded by the video playing terminal, which can ensure that the video playing terminal downloads the next video fragment smoothly, and can fully utilize the network bandwidth of the video playing terminal. Selecting the next slice file with the highest code rate in the network state of the video play terminal as the next video slice to download, ensuring the clarity of the video downloaded by the video play terminal.
  • the splicing module 03 is configured to splicing the slice header of the next video segment to be downloaded by the video playback terminal and the end of the current video segment to generate a spliced video file for the video playback terminal to progressively download and play the spliced video file.
  • the slice header of the next video segment to be downloaded by the video playing terminal is spliced with the ending of the current video segment, thereby implementing different downloading of the video playing terminal. Dynamic switching of video slice rate.
  • the video playback terminal selects the upper and lower video segments of the adjacent time interval in the downloaded program to be spliced to generate a spliced video file, and the video playback terminal can perform progressive download and play according to the generated spliced video file, which can be played. Download and play videos more smoothly.
  • the server dynamically adjusts the code rate of the video playback terminal to download the next video segment; and downloads the video playback terminal.
  • the slice header of a video segment is spliced with the end of the current video segment, thereby implementing dynamic switching of the video playback terminal to download different video segmentation code rates, and the entire switching process is completed by the server without the participation of the video playback terminal, and the video playback terminal Simply download and play the files that are spliced by the server, so that the dynamic bit rate switching can be realized without the video player and the server supporting the same dynamic bit rate switching technology, which greatly improves the server and various video playback. Compatibility between terminals.
  • the obtaining module 01 may be further configured to:
  • the current video fragment is an initial fragment of the program selected by the video playing terminal in the server
  • the initial fragment with the smallest code rate in the selected program is obtained for downloading by the video playing terminal, and the code rate of the video playing terminal is obtained.
  • the download rate of the smallest initial shard is obtained.
  • the current video fragment is the initial fragment selected by the video playing terminal to download the program, because the server cannot know the video playing terminal according to the download rate of the previous video fragment.
  • the network status the server directly selects the initial fragment with the smallest code rate in the program for the video playback terminal to start downloading. In this way, when the network state of the video playing terminal is unknown, the smoothness of the video segment file in the download server of the video playing terminal can be ensured to the maximum extent, and after the initial segment downloading is completed, the dynamic downloading rate according to the initial segmentation is dynamically performed. Adjusting the video playback terminal needs to download the bit rate of the next video segment in the server, which is more flexible and convenient.
  • the present invention further provides a system for dynamically switching code rates.
  • FIG. 3 is a schematic structural diagram of a system for dynamically switching code rates according to an embodiment of the present invention.
  • the system for dynamically switching code rates includes: a server 1 and a video playing terminal 2, wherein
  • the server 1 is configured to obtain a download code rate of the current video slice that the video play terminal 2 selects to download the program in the server 1; dynamically adjust the video play terminal 2 to download the next video slice in the server 1 according to the download code rate. a code rate; splicing the slice header of the next video slice to be downloaded by the video playback terminal 2 and the end of the current video slice to generate a spliced video file;
  • the video playing terminal 2 is configured to send a download request to the server 1, establish a download connection with the server 1, and progressively download and play the stitched video file generated by the server 1.
  • the video playing terminal 2 sends a download request to the server 1, and after receiving the download request, the video playing terminal 2 establishes a download connection with the server 1, and starts to download the program that is selected for downloading in the server 1 in sequence.
  • the video segmentation file in the downloading process, the server 1 dynamically switches the code rate of the video playback terminal 2 to download different video segments according to the network state of the video playback terminal 2, and the next video to be downloaded by the video playback terminal 2
  • the slice header is spliced with the end of the current video segment to generate a spliced video file, and the process of the dynamic bit rate switching by the server 1 is as described above, and details are not described herein again.
  • the video playing terminal 2 After the spliced video file is generated on the server 1, the video playing terminal 2 progressively downloads and plays the generated spliced video file, wherein progressive downloading (Progressive) Download) is a simple way to download files from server 1.
  • progressive downloading Progressive Download
  • the server 1 sequentially splices the upper and lower video segments of the adjacent time interval in the program selected by the video playing terminal 2 to generate a spliced video file, and the video playing terminal 2 can The generated spliced video file is downloaded, and the downloaded spliced video file can also be decoded and played. Since most media players and platforms support progressive downloading, most video playing terminals 2 can progressively download and play the stitched video files generated by the server 1, without the video playing terminal 2 supporting the same as the server 1.
  • the dynamic bit rate switching technology improves the compatibility of the video playing terminal 2.
  • the server 1 dynamically adjusts the code rate of the video playback terminal 2 to download the next video segment; and the video playback terminal 2
  • the slice header of the next video segment to be downloaded is spliced with the end of the current video segment, thereby realizing the dynamic switching of the video playback terminal 2 to download different video segmentation code rates, and the entire switching process is completed by the server 1, without video playback.
  • the terminal 2 participates, and the video playing terminal 2 only needs to progressively download and play the file spliced by the server 1, so that the dynamic bit rate switching can be realized without the video playing terminal 2 and the server 1 supporting the same dynamic bit rate switching technology.
  • the compatibility between the server 1 and various video playing terminals 2 is greatly improved.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk,
  • a storage medium such as ROM/RAM, disk,
  • the optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

L'invention concerne un procédé de commutation de taux de code dynamique, comprenant les étapes suivantes: un serveur acquiert un taux de code de téléchargement d'un fragment vidéo courant d'un programme dans un serveur choisi pour le téléchargement par un terminal de jeu vidéo; en fonction du taux de code de téléchargement, on ajuste dynamiquement le taux de code du fragment vidéo suivant dans le serveur qui est nécessaire pour le téléchargement par le terminal de jeu vidéo; et on relie le début du prochain fragment vidéo nécessaire au téléchargement par le terminal de jeu vidéo et la fin du fragment de vidéo courant au niveau du serveur, et on génère un fichier vidéo assemblé pour le terminal de jeu vidéo en vue du téléchargement progressif et du jeu. L'invention concerne également un serveur et un système de commutation de taux de code dynamique. La présente invention permet de commuter de manière dynamique le taux de code sans qu'il soit nécessaire que le terminal de lecture vidéo et le serveur prennent en charge la même technique de commutation de taux de code dynamique, améliorant ainsi grandement la compatibilité entre le serveur et divers terminaux de jeu vidéo.
PCT/CN2015/091470 2014-12-08 2015-10-08 Procédé de commutation de taux de code dynamique, serveur et système WO2016091000A1 (fr)

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CN201410743103.7A CN105744299A (zh) 2014-12-08 2014-12-08 动态码率切换方法、服务器及系统
CN201410743103.7 2014-12-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111988645A (zh) * 2020-08-27 2020-11-24 上海七牛信息技术有限公司 音视频传输带宽自适应方法

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106993237B (zh) * 2017-04-13 2019-05-10 中北大学 基于mpeg-dash协议的动态自适应码率选择方法
CN107454458A (zh) * 2017-08-30 2017-12-08 努比亚技术有限公司 一种视频数据缓存方法、设备和存储介质
CN108184152B (zh) * 2018-01-03 2020-01-24 湖北大学 一种dash传输系统两阶段客户端码率选择方法
CN110536175B (zh) * 2018-05-24 2022-12-06 腾讯科技（深圳）有限公司 一种码率切换方法和装置
CN108965928B (zh) * 2018-08-15 2021-02-02 湖南快乐阳光互动娱乐传媒有限公司 自适应链接视频下载方法及系统
CN110149534B (zh) * 2019-06-12 2021-06-08 深圳市大数据研究院 基于决策树的自适应视频流转码方法及装置
CN112153428B (zh) * 2020-11-04 2022-07-12 上海连尚网络科技有限公司 视频的处理方法和装置
CN117440209B (zh) * 2023-12-15 2024-03-01 牡丹江师范学院 一种基于演唱场景的实现方法及系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103702237A (zh) * 2012-09-28 2014-04-02 北京大学 Http流媒体的速率自适方法及装置
CN103747283A (zh) * 2013-12-24 2014-04-23 中国科学院声学研究所 视频分片的下载方法
CN104010232A (zh) * 2014-05-23 2014-08-27 惠州Tcl移动通信有限公司 一种智能播放在线视频的方法、系统、播放器及移动终端

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102123303B (zh) * 2011-03-25 2012-10-24 天脉聚源(北京)传媒科技有限公司 一种音视频文件播放方法、系统及传输控制装置
CN103281568B (zh) * 2013-04-25 2016-11-09 网宿科技股份有限公司 实现流媒体直播动态码率的方法及系统
CN103414959B (zh) * 2013-07-15 2017-04-05 北京奇虎科技有限公司 一种加快网络视频播放速度的方法和装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103702237A (zh) * 2012-09-28 2014-04-02 北京大学 Http流媒体的速率自适方法及装置
CN103747283A (zh) * 2013-12-24 2014-04-23 中国科学院声学研究所 视频分片的下载方法
CN104010232A (zh) * 2014-05-23 2014-08-27 惠州Tcl移动通信有限公司 一种智能播放在线视频的方法、系统、播放器及移动终端

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111988645A (zh) * 2020-08-27 2020-11-24 上海七牛信息技术有限公司 音视频传输带宽自适应方法

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