Hi Brion, Looking in: https://commons.wikimedia.org/wiki/Category:Videos There are a number of .ogg/.ogv files - what will happen to them? Will they be auto-moved to .webm?
Thanks, Mike > On 23 Aug 2017, at 16:56, Brion Vibber <[email protected]> wrote: > > This is happening now! > > Video playback in Safari/IE/Edge now defaults to WebM instead of Ogg, and if > all goes well, I'll disable the .ogv derivatives tomorrow. > > Please give a shout at any unexpected problems. > > -- brion > > On Thu, Aug 3, 2017 at 1:27 PM, Brion Vibber <[email protected] > <mailto:[email protected]>> wrote: > Due to ongoing issues with ffmpeg2theora & upcoming server upgrades, I'm > planning to accelerate our migration from Ogg Theora video output to WebM > VP8: https://phabricator.wikimedia.org/T172445 > <https://phabricator.wikimedia.org/T172445> > > == When will it change? == > > Sometime in August 2017 as schedules permit, unless surprises pop up in final > testing. > > == What will change? == > > Folks using Chrome and Firefox may not notice any difference -- these > browsers have used native WebM playback by default for some time. "Ogg" will > disappear from the list of optionally-playable and downloadable formats. > > In Safari, IE, or Edge where the 'ogv.js' compatibility shim is used, you > will see videos automatically show up in WebM mode instead of Ogg mode. > > There is a tradeoff: higher quality & lower bandwidth use, but higher CPU > usage. On very slow computers or at very high resolutions, you may hit CPU > limits at one resolution step lower than with Ogg. > > == Why are we making this change? == > > * Eventually we need to go to WebM to support adaptive streaming, so this was > always planned for the long term... > * For best quality we use an unreleased version of libogg and ffmpeg2theora, > but there are still some bugs in there and we routinely get reports of odd > hangs or crashes. > * Ops is updating the servers, and continuing to maintain the custom packages > that are still crashy is getting to be problematic. > * Dropping the Ogg format for video will free up disk space and and CPU time, > and should result in faster turnaround for derived file generation. > > == What about Ogg audio? == > > Ogg is still being used for audio, and will not be affected. > > -- brion > > _______________________________________________ > Commons-l mailing list > [email protected] > https://lists.wikimedia.org/mailman/listinfo/commons-l
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