In the next couple weeks I'm planning to start switching our video
transcode output from WebM VP8/Vorbis to the newer WebM VP9/Opus profile,
which saves us about 38% on file size and bandwidth while retaining the
same quality.
This will not affect what kinds of files you upload; only the scaled
transcoded output files used for playback will change. All modern browsers
that support VP8 support VP9 as well, and our player shim for Safari and IE
will continue to work.
All the details:
https://www.mediawiki.org/wiki/Extension:TimedMediaHandler/VP9_transition
Comments and questions welcome!
-- brion
Due to a bug in refactoring the extension setup
<https://phabricator.wikimedia.org/T202208> for TimedMediaHandler, MP4
video uploads were accidentally enabled from about August 1 until today.
The bug was that file extensions were added to the enabled list twice, but
'mp4' removed only once, leaving the doubled copy in the enabled list.
Fix was to only add the set once; this was deployed a few minutes ago. An
AbuseFilter rule was also put in place over the weekend to prevent further
uploads.
There are a few dozen affected files on Commons and possibly various local
sites. We've deployed the fix which has re-disabled MP4, and I'll do a scan
for remaining files later today and either put them on the delete queue or
replace them with WebM versions.
Task: https://phabricator.wikimedia.org/T202208
-- brion
why is it that the excellent player is available on the standard wikipedia
view, and not on mobile view? is this just my configuration? as eyample:
* https://en.wikipedia.org/wiki/Polar_orbit
* https://en.m.wikipedia.org/wiki/Polar_orbit
the effect is that my mobile can play the standard view video, but not the
mobile view video.
rupert