Kaltura: Specifications


Kaltura is Oregon State University's video platform. This article provides some specifications for media that is used with MediaSpace, Canvas, and Kaltura.


  • What specifications should I upload with?
  • What encoding does Kaltura use?
  • What devices will play my media?


  • Oregon State
    • Kaltura
    • MediaSpace
    • Canvas

Specifications for uploading a video

For best results with video, we recommend preparing videos in 1280x720 pixels and using the H.264 video codec at 4000 kbps.

Kaltura supports most video and audio formats. If you encounter a type of file that is causing issues, please contact us.

Kaltura Media Encoding

Content uploaded to Kaltura is encoded in a variety of formats for both desktop and mobile playback. They are:

  • Basic/Small (400 kbps video, 64 kbps audio, 640x[auto])
  • Basic/Small (600 kbps, 64 kbps audio, 640x[auto])
  • SD/Small (900 kbps, 64 kbps audio, 640x[auto])
  • SD/Large (1500 kbps, 128 kbps audio, [auto]x720)
  • HD/720 (2500 kbps, 128 kbps audio, [auto]x720)
  • HD/1080 (4000 kbps, 128 kbps audio, [auto]x1080)

It is important to note that Kaltura cannot produce a piece of media at a higher resolution than the quality of the original file.

What devices can play my media?

Kaltura content is designed for both desktop and mobile playback. You can play your videos back on Mac OS or Windows, as well as on Android or iOS, in any current web browser, including Google Chrome, Mozilla Firefox, Microsoft Edge, Apple Safari, and Opera.

Why won't this media play?

Kaltura supports HTML5 video playback, so any modern browser should support your media without any plugins. Here are a few reasons that media might not play.

  • Out of Date Browser
    • Make sure your browser is up to date to its current version.
  • Slow Connection
    • A slow connection simply means that you'll get your media - it will only take longer to reach you. Watch the media's progress bar to see how much of the media has been buffered. Give it some time. Larger media may not play back smoothly until the entire segment has been buffered.
  • Incomplete Buffering
    • Sometimes the buffering of a piece of media is interrupted and you can't get the full clip to buffer properly because the interrupted clip has been cached. Clearing your browser's cache may solve this.
  • Access Controls
    • Kaltura MediaSpace allows content owners to restrict access to their media. If you see an Access Denied message when attempting to view a piece of media, first make sure that you are logged in. If the issue persists, contact the content owner and request that you be added to the access list for that piece of media.

For assistance, contact the IS Service Desk.

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Article ID: 68862
Wed 12/12/18 10:45 AM
Fri 7/17/20 9:30 AM

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