Last modified: 2014-11-05 00:58:27 UTC
“Opus is an open and royalty-free lossy audio compression format.” [1] Since 2012-09, it is an IETF standard. Support in MediaWiki would be awesome. [1] <https://en.wikipedia.org/wiki/Opus_%28audio_format%29>
Couple of things to do here probably: * add the .opus extension & "audio/ogg; codecs=opus" mime type to our lists * make sure that .opus files that get uploaded keep their .opus extensions and don't get renamed as .ogg or something * support in TimedMediaHandler to play them in supporting browsers (how to check?) * support in TimedMediaHandler to transcode .opus to other format(s) for non-supporting browsers And of course.... deploy TimedMediaHandler (bug 27699).
As of firefox 15: var dummyvid = document.createElement( "video" ); dummyvid.canPlayType( 'audio/ogg;codecs=opus' ); "probably" Yes, once we get 27699 out of the way, we can enable opus, mp3 and h.264 transcodes and playback relatively easily, since the mechanics for source stream switching and client feature support detection are already supported for the existing set of codecs that we support.
Since TMH is deployed, is Opus transcode and playback possible?
Opus can now be forced into the OGG container, but the Wiki servers have problems detecting the codec. Also playback is limited in some browsers (chrome at least). https://commons.wikimedia.org/wiki/File:Sound_of_the_bells_of_Sveta_Nedelya_in_Sofia_2012_PD.ogg
Related: https://gerrit.wikimedia.org/r/#/c/78235/
(In reply to Marco from comment #4) > Opus can now be forced into the OGG container, but the Wiki servers have > problems detecting the codec. Also playback is limited in some browsers > (chrome at least). > > https://commons.wikimedia.org/wiki/File: > Sound_of_the_bells_of_Sveta_Nedelya_in_Sofia_2012_PD.ogg Note that Chrome as of version 38 plays this opus-in-ogg file natively just fine. Yay upgrades over time! I also have Opus support in ogv.js, so once that lands we should have working playback in Safari 6.1+ and IE 10+ as well, with or without Vorbis transcodes.
