Media Source Extensions
From Wikipedia, the free encyclopedia
| MSE | |
|---|---|
| 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.
Minor browsers
The Media Source Extensions API is widely supported across all modern web browsers, with the only exception being iPhone-family devices (although it is supported on iPadOS).[8] Firefox 37 already had a subset of MSE API available for use with only YouTube in Firefox 37 on Windows Vista or later only,[9] while Mac OS X version had in enabled starting version 38.[10]
| Desktop | Mobile devices | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Windows, Mac OS, Linux | iOS | Android | |||||||||
| Internet Explorer | Edge | Chrome | Firefox | Safari | Opera | All browsers[11] | Edge | Chrome | Firefox | Opera | Samsung Internet |
| 11.0[12] | 12+[13] | 23–30[14][15] | 38–41[14] | 8+ | 30+[16] | iOS 13+[17] | 12+ | 92+ | 90+ | 64+ | 9.2+ |
| 31+ | 42+[18] | ||||||||||
- Pale Moon from version 27.0, since 22 November 2016.[19]