[wp-trac] [WordPress Trac] #27915: Problems with subtitles and what should Tracks field really do?

[WordPress Trac]

#27915: Problems with subtitles and what should Tracks field really do?
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 Reporter:  pavelevap     |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Media         |    Version:  3.9
 Severity:  normal        |   Keywords:
  Focuses:                |
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 In "Video details" modal window, there is "Tracks" field at the bottom.
 Before I figured out that it is for tracks tag with kind attribute, I
 tried to wrote some description, but nothing happened on front end. Maybe
 this field should not be editable? Or some kind of help would be nice.
 Users are not developers.

 I tried to add some subtitles and now there are two fields and I can edit
 both of them? See attached screenshot.

 Tracks field should be available also for audio files?

 I tried to upload .srt subtitle file but it is not allowed. But users
 usually know .srt files. #27643

 I tried to add subtitles, but I had many .txt and .csv files in modal
 window. Why? There should be only supported formats available?

 I was not able to add subtitles to my video file. After adding them and
 click "Update" they are not in shortcode and missing also from Tracks
 field.

 Also after adding subtitle file to video, but it is not available in my
 video playlist? How can I add subtitles to my video playlist? And why
 should I set it on another place? When I add subtitles to my video, I want
 it to be saved also to Media library (as Featured image).

 But in the end, I '''was not able''' to add subtitles to my video :-(

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Ticket URL: <https://core.trac.wordpress.org/ticket/27915>
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