JP6147866B2 - Httpアダプティブストリーミング動画を受信するための方法およびクライアント装置 - Google Patents
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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]
- H04N21/60—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
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/637—Control signals issued by the client directed to the server or network components
- H04N21/6373—Control signals issued by the client directed to the server or network components for rate control, e.g. request to the server to modify its transmission rate
-
- 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
- H04L65/80—Responding to QoS
-
- 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
- H04L65/60—Network streaming of media packets
- H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
- H04L65/613—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for the control of the source by the destination
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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
- H04N21/238—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
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- 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
- H04N21/239—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests
- H04N21/2393—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests involving handling client requests
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- 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
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
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- 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
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- 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
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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- 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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
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- 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
- H04N21/44209—Monitoring of downstream path of the transmission network originating from a server, e.g. bandwidth variations of a wireless network
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- H—ELECTRICITY
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- 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
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/637—Control signals issued by the client directed to the server or network components
- H04N21/6377—Control signals issued by the client directed to the server or network components directed to 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]
- H04N21/60—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
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/643—Communication protocols
- H04N21/64322—IP
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Databases & Information Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Information Transfer Between Computers (AREA)
- Telephonic Communication Services (AREA)
- Computer And Data Communications (AREA)
- Communication Control (AREA)
Description
要求される動画ビット伝送速度は利用可能なネットワークビット伝送速度に正確に一致することはできないので、クライアントは再生バッファを維持する必要がある。
Pr[T[A,.]=t[A,.]|T[B,A]=t[B,A],T[C,B]=t[C,B],...](式1)
で獲得される。
Pr[T[A,.]=t[A,.],T[B,A]=t[B,A],T[C,B]=t[C,B],...]/
Pr[T[B,A]=t[B,A],T[C,B]=t[C,B],...](式2)
Claims (7)
- サーバからハイパーテキスト転送プロトコル(HTTP)アダプティブストリーミング動画を受信するための方法であって、前記サーバに動作可能に接続されたクライアントにおいて、
前記動画のチャンクを受信すると、前記サーバから前記クライアントへの伝送のための現在の伝送速度を決定することと、
期待される将来の伝送速度に関係する統計情報を、少なくとも前記現在の伝送速度の関数として取得することと、
前記統計情報のみから目標伝送速度を導出することと、
前記目標伝送速度に従って前記動画の後続チャンクを要求することとを含み、
さらに、前記決定した現在の伝送速度を使用して前記統計情報を更新することを含み、
前記統計情報が前記クライアントとは別のネットワークノードから取得され、かつ前記ネットワークノードにおいて更新され、前記ネットワークノードが複数のクライアントからの統計情報を格納するように構成されており、
前記統計情報がヒストグラムを含み、前記導出することが前記ヒストグラムから所定の分位点を計算することを含み、
前記分位点が5パーセンタイル、1パーセンタイル、0.1パーセンタイルのいずれか1つであり、
前記伝送速度の情報が、関連するネットワークのタイプ、時刻、曜日の少なくとも1つを含む補助情報と関連付けて前記ネットワークノードに記憶される、方法。 - 前記統計情報の前記取得することが前記クライアントが起動すると行われる、請求項1に記載の方法。
- 前記統計情報の前記取得することが時間間隔をおいて行われる、請求項1または2に記載の方法。
- プロセッサにより実行したときに、プロセッサに、請求項1から3のいずれか一項に記載の方法を実行させるコンピュータプログラムを含む非一時的コンピュータ読み取り可能な記憶媒体。
- サーバからハイパーテキスト転送プロトコル(HTTP)アダプティブストリーミング動画を受信するための装置であって、
前記装置を前記サーバに動作可能に接続するように適合されたネットワークインタフェースと、
前記装置を統計値データベースに動作可能に接続するように適合されたデータベースインタフェースと、
前記ネットワークインタフェースおよび前記データベースインタフェースに動作可能に接続されたプロセッサとを備え、
前記プロセッサが、
前記サーバから前記装置への現在の伝送速度を決定し、
期待される将来の伝送速度に関係する統計情報を、少なくとも前記現在の伝送速度の関数として前記統計値データベースから取得し、
前記統計情報のみから目標伝送速度を導出し、
前記目標伝送速度に従って前記サーバからの前記動画の後続チャンクを要求するように構成されており、前記プロセッサがさらに前記決定した現在の伝送速度を前記統計値データベースに調達するように構成され、
前記統計情報がヒストグラムを含み、前記導出することが前記ヒストグラムから所定の分位点を計算することを含み、
前記分位点が5パーセンタイル、1パーセンタイル、0.1パーセンタイルのいずれか1つであり、
前記伝送速度の情報が、関連するネットワークのタイプ、時刻、曜日の少なくとも1つを含む補助情報と関連付けて前記統計値データベースに記憶される、装置。 - 前記データベースインタフェースに動作可能に接続された前記統計値データベースをさらに備える、請求項5に記載の装置。
- 請求項5または6に記載の装置を備えるセットトップボックス。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12306495.8 | 2012-11-30 | ||
EP12306495.8A EP2738994A1 (en) | 2012-11-30 | 2012-11-30 | Method and client apparatus for receiving an HTTP adaptive streaming video |
PCT/EP2013/074530 WO2014082942A1 (en) | 2012-11-30 | 2013-11-25 | Method and client apparatus for receiving an http adaptive streaming video |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2016506644A JP2016506644A (ja) | 2016-03-03 |
JP6147866B2 true JP6147866B2 (ja) | 2017-06-14 |
Family
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Application Number | Title | Priority Date | Filing Date |
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JP2015544425A Expired - Fee Related JP6147866B2 (ja) | 2012-11-30 | 2013-11-25 | Httpアダプティブストリーミング動画を受信するための方法およびクライアント装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US9357273B2 (ja) |
EP (1) | EP2738994A1 (ja) |
JP (1) | JP6147866B2 (ja) |
KR (1) | KR20150091368A (ja) |
CN (1) | CN104813638A (ja) |
WO (1) | WO2014082942A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014108207A1 (en) * | 2013-01-11 | 2014-07-17 | Telefonaktiebolaget L M Ericsson (Publ) | Technique for operating client and server devices in a broadcast communication network |
EP3001693A1 (en) * | 2014-09-26 | 2016-03-30 | Alcatel Lucent | Server, client, method and computer program product for adaptive streaming of scalable video and/or audio to a client |
US10164893B2 (en) | 2015-08-19 | 2018-12-25 | Samsung Electronics Co., Ltd. | Data transfer apparatus, data transfer controlling method and data stream |
KR102209292B1 (ko) * | 2015-11-04 | 2021-01-29 | 삼성전자 주식회사 | 멀티미디어 시스템에서 데이터 제공 방법 및 장치 |
US10244205B1 (en) * | 2017-10-24 | 2019-03-26 | Whatsapp Inc. | Bandwidth estimation of a network connection |
JP7270344B2 (ja) * | 2018-06-19 | 2023-05-10 | 日本放送協会 | 端末装置、帯域予測装置、およびプログラム |
WO2021197832A1 (en) * | 2020-03-30 | 2021-10-07 | British Telecommunications Public Limited Company | Low latency content delivery |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6738349B1 (en) * | 2000-03-01 | 2004-05-18 | Tektronix, Inc. | Non-intrusive measurement of end-to-end network properties |
US7206855B1 (en) * | 2002-06-28 | 2007-04-17 | Microsoft Corporation | System and method for exchanging information across a computer network at variable transmission rates |
JP3935419B2 (ja) * | 2002-11-19 | 2007-06-20 | Kddi株式会社 | 動画像符号化ビットレート選択方式 |
EP1943600A2 (en) * | 2005-10-25 | 2008-07-16 | Koninklijke Philips Electronics N.V. | Interactive patient care system |
JP4536026B2 (ja) * | 2006-03-24 | 2010-09-01 | Kddi株式会社 | ネットワーク品質測定方法、測定装置及びプログラム |
US7779146B2 (en) * | 2006-11-09 | 2010-08-17 | Sharp Laboratories Of America, Inc. | Methods and systems for HTTP streaming using server-side pacing |
JPWO2008108379A1 (ja) * | 2007-02-28 | 2010-06-17 | 日本電気株式会社 | メディア配信システム、配信サーバ装置及びそれらに用いるメディア配信方法並びにそのプログラム |
US8537699B2 (en) * | 2009-06-16 | 2013-09-17 | Qualcomm Incorporated | Managing video adaptation algorithms |
US8527647B2 (en) * | 2009-10-06 | 2013-09-03 | Unwired Planet, Inc. | Managing network traffic using intermediate flow control |
US9124642B2 (en) * | 2009-10-16 | 2015-09-01 | Qualcomm Incorporated | Adaptively streaming multimedia |
EP2360923A1 (en) * | 2010-02-24 | 2011-08-24 | Thomson Licensing | Method for selectively requesting adaptive streaming content and a device implementing the method |
EP2525587B1 (en) * | 2011-05-17 | 2017-07-05 | Alcatel Lucent | Method for streaming video content, node in a network for monitoring video content streaming |
GB2500245B (en) * | 2012-03-15 | 2014-05-14 | Toshiba Res Europ Ltd | Rate optimisation for scalable video transmission |
-
2012
- 2012-11-30 EP EP12306495.8A patent/EP2738994A1/en not_active Withdrawn
-
2013
- 2013-11-25 CN CN201380062211.1A patent/CN104813638A/zh active Pending
- 2013-11-25 KR KR1020157017423A patent/KR20150091368A/ko not_active Application Discontinuation
- 2013-11-25 WO PCT/EP2013/074530 patent/WO2014082942A1/en active Application Filing
- 2013-11-25 US US14/648,441 patent/US9357273B2/en not_active Expired - Fee Related
- 2013-11-25 JP JP2015544425A patent/JP6147866B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2016506644A (ja) | 2016-03-03 |
EP2738994A1 (en) | 2014-06-04 |
US9357273B2 (en) | 2016-05-31 |
US20150304734A1 (en) | 2015-10-22 |
WO2014082942A1 (en) | 2014-06-05 |
KR20150091368A (ko) | 2015-08-10 |
CN104813638A (zh) | 2015-07-29 |
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