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| Media Source Extensions | |
| Abbreviation | EME, media-source |
|---|---|
| Native name | Media Source Extensions |
| Status | Candidate Recommendation[1][2] |
| Year started | 2013 [3] |
| First published | January 29, 2013[1] |
| Latest version | Candidate Recommendation November 17, 2016[1] |
| Preview version | Editor's draft April 21, 2021[4] |
| Organization | |
| Committee | HTML Media Extensions Working Group |
| Editors |
Former editors
|
| Authors | HTML Media Extensions Working Group |
| Base standards | HTML, Web IDL |
| Related standards | Encrypted Media Extensions |
| Domain | HTML video, HTML audio |
| Website |
|
Media Source Extensions (MSE) is a W3C specification that allows JavaScript to send byte streams to media codecs within web browsers that support HTML video and audio.[5] Among other possible uses, this allows the implementation of client-side prefetching and buffering code for streaming media entirely in JavaScript. It is compatible with, but should not be confused with, the Encrypted Media Extensions (EME) specification, and neither requires the use of the other, although many EME implementations are only capable of decrypting media data provided via MSE.[6]
Netflix announced experimental support in June 2014 for the use of MSE playback on the Safari browser on the OS X Yosemite beta release.[7]
YouTube started using MSE in its HTML5 player in September 2013.
![[icon]](view_image.php?q=Media_Source_Extensions&sq=Xi Jinping&lang=en&file=File:Wiki_letter_w_cropped.svg){kind=small} | This section needs expansion with: an explanation of how these affect video-blocking and autoplay blocking accessibility tools. You can help by adding to it. (May 2015) |
- ^ a b c d Wolenetz, Matthew; Smith, Jerry; Watson, Mark; Colwell, Aaron; Bateman, Adrian (eds.). Media Source Extensions™. W3C (Technical report) – via W3C.
- ^ "Media Source Extensions™ Publication History - W3C". W3C. 21 September 2022.
- ^ Colwell, Aaron; Bateman, Adrian; Watson, Mark, eds. (2013-01-29). Media Source Extensions. W3C (Technical report). Retrieved 2021-03-19 – via W3C.
- ^ a b Media Working Group (2021-04-21). Wolenetz, Matthew; Watson, Mark; Smith, Jerry; Colwell, Aaron; Bateman, Adrian (eds.). "Media Source Extensions™". w3c.github.io. Editor's draft. Media Working Group. Retrieved 2021-04-21.
- ^ "Media Source Extensions W3C Recommendation". 17 November 2016. Retrieved 5 January 2021.
- ^ "Encrypted Media Extensions". 18 September 2017. Retrieved 29 January 2020.
- ^ Anthony Park and Mark Watson (3 June 2013). "HTML5 Video in Safari on OS X Yosemite". Netflix.
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