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Media Source Extensions

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Media Source Extensions (MSE) is a W3C specification that allows JavaScript to send byte streams to media codecs within web browsers that support HTML5 video.[1] 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 specification, and neither requires the use of the other.

Netflix announced experimental support in June 2014 for the use of MSE playback on the Safari browser on the OS X Yosemite beta release.[2]

YouTube started using MSE with its HTML5 player in September 2013.

Browser support

  • Firefox 42 with support for all sites since 3 November 2015,[3] with a subset of the functionality available for use with only YouTube in Firefox 37 on Windows Vista or later only.[4] Firefox added the same subset of MSE for YouTube playback support to Mac OS X starting in Firefox 38.[5]
  • Google Chrome since early 2013, also on Android.[6]
  • Internet Explorer from version 11 on Windows 8.1. (2013 October)[6]
  • Microsoft Edge since its launch in November 2015.[7]
  • Opera since 9 June 2015.[8]
  • Safari 8 on OS X.[6]

Players

  • THEOplayer by OpenTelly: HLS and MPEG-DASH player for cross-platform HTML5 support without the need for Flash fallback[9]
  • bitmovin's bitdash MPEG-DASH player for HTML5 MSE and EME, with Flash fallback[10]
  • dash-js for HTML5 MSE[11]
  • dash.js for HTML5 MSE and EME[12]
  • rx-player for HTML5 MSE and EME (Live and On Demand)[13]
  • hls.js for HTML5 MSE[14][15]
  • hasplayer.js for HTML5 MSE and EME, supporting DASH, Smooth Streaming and HLS[16]
  • JW Player 7 and later for MPEG-DASH using HTML5 MSE and EME[17]
  • Azure Media Player supports MSE, EME, DASH, HLS, Flash, and Silverlight. Streaming URLs are published in an ism/manifest.[18]
  • Unreal HTML5 player uses MSE for low latency (sub-second) live playback of streams sent via WebSockets by Unreal Media Server[19]

References

  1. ^ "Media Source Extensions W3C Candidate Recommendation". 17 July 2014. Retrieved 20 November 2014.
  2. ^ Anthony Park and Mark Watson (3 June 2013). "HTML5 Video in Safari on OS X Yosemite". Netflix.
  3. ^ https://www.mozilla.org/en-US/firefox/42.0/releasenotes/
  4. ^ https://www.mozilla.org/en-US/firefox/37.0/releasenotes/
  5. ^ https://www.mozilla.org/en-US/firefox/38.0/releasenotes/
  6. ^ a b c The Status of MPEG-DASH today, and why Youtube & Netflix use it in HTML5
  7. ^ [1]
  8. ^ Opera 30 released
  9. ^ THEOplayer by OpenTelly: HLS and MPEG-DASH player for HTML5 without the need for Flash fallback
  10. ^ bitdash MPEG-DASH player for HTML5 and Flash
  11. ^ dash-js of Alpen-Adria University Klagenfurt
  12. ^ dash.js
  13. ^ rx-player.js
  14. ^ http://engineering.dailymotion.com/introducing-hls-js/]
  15. ^ hls.js demo page
  16. ^ https://github.com/Orange-OpenSource/hasplayer.js/tree/master
  17. ^ JW Player About DASH Streaming
  18. ^ "Azure Media Player". Microsoft. 2015. Retrieved 2016-06-14.
  19. ^ Unreal Media Server

See also


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