Last modified: 2013-12-17 10:31:39 UTC

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Bug 57108 - Unable to play video in the Kaltura-mediaplayer without stuttering
Unable to play video in the Kaltura-mediaplayer without stuttering
Status: NEW
Product: MediaWiki extensions
Classification: Unclassified
TimedMediaHandler (Other open bugs)
unspecified
All All
: Low normal (vote)
: ---
Assigned To: Michael Dale
:
Depends on:
Blocks:
  Show dependency treegraph
 
Reported: 2013-11-15 17:47 UTC by Marco
Modified: 2013-12-17 10:31 UTC (History)
5 users (show)

See Also:
Web browser: ---
Mobile Platform: ---
Assignee Huggle Beta Tester: ---


Attachments

Description Marco 2013-11-15 17:47:37 UTC
I wanted to look the today media of the day, but the video stops every few seconds. The problem continuous even after the file is completely loaded to my computer. I discovered a funny workaround: when I constantly move my cursor over the video-window (without clicking) then the video plays without stopping --Bin im Garten (talk) 14:00, 15 November 2013 (UTC)

(copy paste from: https://commons.wikimedia.org/w/index.php?title=Commons_talk%3AVideo&diff=109721948&oldid=98439414 )

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I confirmed the issue with https://commons.wikimedia.org/wiki/File:Forrest_Highway_southbound_from_Pinjarra_Road.ogv which plays fine when loaded directly (hotlink) into the browser. Stuttering can be observed when watching through the Kaltura mediaplayer.
Comment 1 Bawolff (Brian Wolff) 2013-11-15 18:46:59 UTC
When reporting issues like this, please include which browsers the issue happens on (and if it happens on all the browsers you've tested on). Please also include if its all videos, or only a specific one. If this doesn't happen when viewing directly, please include if it happens when viewing the transcoded version directly, or just when viewing the original video directly.

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For what its worth, on my browser (firefox 3.5) I see a very mild amount of stuttering when I view using the kultra player. I get the exact same amount of stuttering when I view the ogv file directly in the browser (both the transcoded and the original). However if I download the video, and play it locally on mplayer (For both the original, and for the 480p ogg transcode) I don't get any stuttering.

When viewing in chrome (27.0.1453.81 beta), I didn't get any stuttering when viewing as 480p ogg, 480p webm, or as original video (Other then some buffering when doing original video).
Comment 2 Marco 2013-11-15 20:29:43 UTC
Not sure what was the OPs browser but I tested in FF 20.0 OpenSuse. Nonetheless I can not confirm the issue with FF 25 Fedora on my home connection right now. Though it seems unlikely that the problem's source was connection related, it may seem plausible when taking into account the recent server performance issues in the last week(s).
Comment 3 Bawolff (Brian Wolff) 2013-11-15 22:30:04 UTC
(In reply to comment #2)
> Not sure what was the OPs browser but I tested in FF 20.0 OpenSuse.
> Nonetheless
> I can not confirm the issue with FF 25 Fedora on my home connection right
> now.
> Though it seems unlikely that the problem's source was connection related, it
> may seem plausible when taking into account the recent server performance
> issues in the last week(s).

Well connection issues could trigger buffering, which might lead to starting and stopping while the player waits for the rest of the video to load.
Comment 4 Nemo 2013-11-19 18:42:45 UTC
I hear rumors that, at least in some browsers (Chrome on Linux, I think) and conditions (a long ogv video left playing without moving cursor), the server says 304 Not modified after 12.5 minutes

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