File:Big Buck Bunny keyframe strobing example.webm

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Original file ‎(WebM audio/video file, VP9, length 20 s, 1,280 × 720 pixels, 2.18 Mbps overall, file size: 5.2 MB)

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Summary

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Description
English: An exaggerated example of keyframe strobing, a video compression artifact in which a significant change between a keyframe (I-frame) and the previous frame (likely a P-frame) causes a distracting discontinuity in the flow of the video. This example was created with FFmpeg's mpeg4 encoder with a keyframe interval of one second and a bitrate of 700k in order to make the effect more pronounced.
Date
Source Re-encoded from big_buck_bunny_720p24.y4m from Derf's Test Media Collection
Author Blender Foundation / www.bigbuckbunny.org; Janus B. Kristensen

Licensing

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This file is from the movie Big Buck Bunny or the associated website, which has been licensed under Creative Commons Attribution 3.0 License. Their website states:
The attribution is either one of the following cases
  1. If you redistribute or screen or broadcast the movie itself: include the entire credits scroll.
  2. In all other cases, attribute it as: (c) copyright Blender Foundation | www.bigbuckbunny.org
This is the first time such a large collection of files get launched under ‘the commons’, and therefore still a bit complex to grasp what to credit when exactly. The guidelines above are just meant to ensure that attribution happens in a reasonable way. If in doubt, use the second choice above.
Excluded from the Creative Commons is:
  • all logos on this website (including Blender logo, Peach logo, Creative Commons logo) and associated trademarks
w:en:Creative Commons
attribution
This file is licensed under the Creative Commons Attribution 3.0 Unported license.
Attribution: (c) copyright Blender Foundation | www.bigbuckbunny.org
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

File history

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Date/TimeThumbnailDimensionsUserComment
current19:32, 6 August 202120 s, 1,280 × 720 (5.2 MB)Veikk0.ma (talk | contribs)Uploaded a work by Blender Foundation / www.bigbuckbunny.org; Janus B. Kristensen from Re-encoded from big_buck_bunny_720p24.y4m from [https://media.xiph.org/video/derf/ Derf's Test Media Collection] with UploadWizard

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Transcode status

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Format Bitrate Download Status Encode time
VP9 720P 1.83 Mbps Completed 19:33, 6 August 2021 41 s
Streaming 720p (VP9) 1.83 Mbps Completed 20:08, 5 February 2024 1.0 s
VP9 480P 1.12 Mbps Completed 19:33, 6 August 2021 39 s
Streaming 480p (VP9) 1.12 Mbps Completed 04:58, 12 January 2024 1.0 s
VP9 360P 547 kbps Completed 19:33, 6 August 2021 23 s
Streaming 360p (VP9) 547 kbps Completed 18:42, 16 January 2024 0.0 s
VP9 240P 271 kbps Completed 19:33, 6 August 2021 20 s
Streaming 240p (VP9) 271 kbps Completed 22:54, 15 December 2023 1.0 s
WebM 360P 514 kbps Completed 19:33, 6 August 2021 11 s
Streaming 144p (MJPEG) 825 kbps Completed 01:12, 1 November 2023 1.0 s

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