[wp-meta] [Making WordPress.org] #8098: WordPressTV video thumbnail selector has stopped working

[Making WordPress.org]

#8098: WordPressTV video thumbnail selector has stopped working
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 Reporter:  nilovelez     |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  high          |   Milestone:
Component:  WordPress.tv  |  Resolution:
 Keywords:                |
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Comment (by wplmillet):

 Hello, just a quick question.
 Currently, how does the system choose the thumbnail? Is it the first
 image? (Unlikely.) Is it the first animation? Or is it random?
 I tried placing keyframes at the beginning of the video to see if they’d
 be detected during analysis, but nothing happened.
 However, they are recognized as such locally with:

 {{{
 ffmpeg -skip_frame nokey -i myvideo.mp4 -vsync 0 keyframe-%03d.jpg
 }}}

 I extracted the keyframes, and the first 5 located within the first 6
 seconds match the desired thumbnail perfectly.
 Hence my question.
 While digging around, I see that there are a few possible parameters in
 the short code.
 Maybe it’s possible to force the display of a thumbnail with an image?
 If that exists, I haven’t found it.
 Thanks

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Ticket URL: <https://meta.trac.wordpress.org/ticket/8098#comment:13>
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