File:Labradorescence in labradorite.webm
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Original file (file size: 7.62 MB, MIME type: video/webm)
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Summary
| Description |
English: A short video of a sample of labradorite in a mineral shop in Madrid, New Mexico. As the viewing angle changes, the sample becomes much more visibly iridescent. |
| Date | Taken on 16 March 2017 |
| Source | Own work |
| Author | Grendelkhan |
| Taken with |  This photo was taken with Nexus 5X |
| Technical details | Converted with ffmpeg 3.1.1-static (Lavc57.48.101 for libvpx-vp9 and libopus) with two passes: ffmpeg -i VID_20170316_114332.mp4 -c:v libvpx-vp9 -pass 1 -b:v 16897k -crf 23 -threads 8 -speed 4 -tile-columns 6 -frame-parallel 1 -an -f webm /dev/null, followed by ffmpeg -i VID_20170316_114332.mp4 -c:v libvpx-vp9 -pass 2 -b:v 16897k -crf 23 -threads 8 -tile-columns 6 -frame-parallel 1 -an -auto-alt-ref 1 -lag-in-frames 25 -f webm "Labradorescence in labradorite.webm" as described in the WebM Project's encoding guide under "constrained quality". |
| Camera location |  | View this and other nearby images on: OpenStreetMap |  |
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Licensing
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
- 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.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 01:31, 14 April 2017 |  | (7.62 MB) | wikimediacommons>Grendelkhan | User created page with UploadWizard |
File usage
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