About: Adaptive bitrate streaming

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Adaptive bitrate streaming is a technique used in streaming multimedia over computer networks. While in the past most video or audio streaming technologies utilized streaming protocols such as RTP with RTSP. Today's adaptive streaming technologies are almost exclusively based on HTTP and designed to work efficiently over large distributed HTTP networks such as the Internet. It works by detecting a user's bandwidth and CPU capacity in real time, adjusting the quality of the media stream accordingly. It requires the use of an encoder which encodes a single source media (video or audio) at multiple bit rates. The player client switches between streaming the different encodings depending on available resources. "The result: very little buffering, fast start time and a good experience for both

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rdfs:label	Adaptive bitrate streaming (en) Streaming de tasa de bits adaptable (es) 적응 비트레이트 스트리밍 (ko) Smooth Streaming (uk) 自適性串流 (zh)
rdfs:comment	Smooth Streaming, Adaptive bitrate streaming — це технологія адаптивної трансляції потокового відео по протоколу HTTP. Дана технологія є додатком IIS (Internet Information Services) від компанії Microsoft, який працює з відео плеєром «Silverlight». Smooth Streaming забезпечує високу якість перегляду з можливістю масового масштабування в мережі і розподілу трансльованого контенту, що дає справжню якість HD-1080p при трансляції відео через інтернет. Вперше технологію використовувала Microsoft для трансляції відео на літніх Олімпійських іграх 2008 року. (uk) 自適性串流（英語：ABS, adaptive bitrate streaming），是一種在電腦網路使用的一種技術串流技術。过去的流媒体技术多使用RTP/RTSP，但现在的技术则大多基于HTTP，并为更高效在大型分布式HTTP网络（例如互联网）分发而设计。此技术根据实时检测的用户的带宽和CPU使用率，调整视频流的质量。这需要使用一种可以将单一视频源输出为的编码器。播放器客户端依赖可用资源在不同码率的流之间切换。"结果就是：更少缓存、更快的开始播放、为低端和高端链接都提供良好的体验。" 根据当前广泛使用的实现，更具体来说，自适应串流（ABS）： * 使用HTTP传送视频流 * 使用多码率编码源内容 * 每个单码率的流被切成小的，几秒钟的小切片流媒体客户端首先获取所有码率的切片索引信息。一开始，客户端先请求最低码率的串流。如果客户端判断下载速度比当前码率的切片串流快，它就去请求下一个更高码率的串流。随着播放的进行，如果客户端发现下载速度比当前码率的切片串流慢，转而请求下一个较低码率的串流。切片大小和具体实现密切相关，不过一般都在2～10秒之间。每个切片由一个完整的GOP序列组成，一个GOP序列里面有1个或者多个I帧，GOP序列的第一个帧必须是I帧，并且每个切片都能单独的解码播放显示。 (zh) Adaptive bitrate streaming is a technique used in streaming multimedia over computer networks. While in the past most video or audio streaming technologies utilized streaming protocols such as RTP with RTSP. Today's adaptive streaming technologies are almost exclusively based on HTTP and designed to work efficiently over large distributed HTTP networks such as the Internet. It works by detecting a user's bandwidth and CPU capacity in real time, adjusting the quality of the media stream accordingly. It requires the use of an encoder which encodes a single source media (video or audio) at multiple bit rates. The player client switches between streaming the different encodings depending on available resources. "The result: very little buffering, fast start time and a good experience for both (en) El streaming de tasa de bits adaptable DASH(Dynamic Adaptive Streaming over HTTP) es una técnica utilizada en el streaming multimedia sobre redes informáticas. Mientras que en el pasado la mayoría de las tecnologías de streaming de video utilizaban protocolos de streaming como RTP con RTSP, hoy en día las tecnologías de streaming adaptables se basan casi exclusivamente en HTTP y están diseñadas para trabajar eficientemente sobre grandes redes HTTP distribuidas como Internet. (es) 적응 비트레이트 스트리밍(Adaptive bitrate streaming)은 컴퓨터 네트워크를 경유하여 멀티미디어를 스트리밍하기 위해 사용되는 기술이다. 과거 대부분의 동영상, 오디오 스트리밍 기술들은 RTSP+RTP 등의 스트리밍 프로토콜을 이용하였으나 오늘날 적응 스트리밍 기술들은 거의 전적으로 HTTP에 기반을 두며 인터넷 등 대형 분산 HTTP 네트워크 상에서 효율적으로 동작하도록 설계되었다. 사용자의 대역폭과 CPU 사용률을 실시간으로 감지하고 이에 따라 미디어 스트림의 품질을 조정함으로써 동작한다. 여러 비트레이트로 단일 소스 미디어(동영상 또는 소리)를 인코딩할 수 있는 인코더의 사용이 필요하다. 플레이어 클라이언트는 이용 가능한 자원에 따라 각기 다른 인코딩을 스트리밍한다. 이로써 나타나는 결과로, 매우 적은 버퍼링, 빠른 시작 시간, 고속 연결과 저속 연결 모두에 양호한 경험을 제공한다. (ko)
foaf:depiction
dcterms:subject	Streaming media systems Internet broadcasting
Wikipage page ID	27959061 (xsd:integer)
Wikipage revision ID	1120818982 (xsd:integer)
Link from a Wikipage to another Wikipage	Q-learning Hypertext Transfer Protocol Uplynk Nvidia 3D Vision Post-production Silverlight Streaming media systems Computer network Quality of experience Encoding Multimedia Content delivery network Apple Computer Apple Inc. Libdash MPEG MPEG transport stream Macromedia Streaming media Toshiba Data buffer Windows Phone 7 HTTP Live Streaming Real Time Messaging Protocol Larrikin Adobe Inc. Akamai Technologies 3GPP DASH-IF DTS (sound system) Edge server Central processing unit Digital rights management Fairness measure Request for Comments Reinforcement learning HTTP Harman Kardon Internet Information Services Artificial neural network Internet broadcasting Bit rate Hierarchical modulation Disney Phoenix Technologies DECE Encode/Decode IETF IOS ISO base media file format Microsoft Network Address Translation Open IPTV Forum Real-time Transport Protocol Microsoft Smooth Streaming Protocol Multiple description coding State-Action-Reward-State-Action Video scaler Video on demand Disney–ABC Television Group Web cache Warner Brothers QuickTime X Muxed RTSP dbr:Digital_Deluxe dbr:Octoshape
Link from a Wikipage to an external page	http://pro.gigaom.com/2009/06/how-to-deliver-as-much-video-as-users-can-take/ https://reference.dashif.org/dash.js https://web.archive.org/web/20100619225207/http:/pro.gigaom.com/2009/06/how-to-deliver-as-much-video-as-users-can-take/ http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm%3Fcsnumber=57623
sameAs	Adaptive bitrate streaming

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