File:Labradorescence in labradorite.webm
Size of this JPG preview of this WEBM file: 337 × 599 pixels. Other resolutions: 135 × 240 pixels | 270 × 480 pixels | 432 × 768 pixels | 1,080 × 1,920 pixels.
Original file (WebM audio/video file, VP9, length 4.5 s, 1,080 × 1,920 pixels, 14.31 Mbps overall, file size: 7.62 MB)
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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.
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 00:31, 14 April 2017 | 4.5 s, 1,080 × 1,920 (7.62 MB) | Grendelkhan | User created page with UploadWizard |
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