[instagram] Download video preview

[AlttiRi]

Is possible to download both video_url (video file) and display_url (a preview/thumbnail) for video URLs?

[AlttiRi]

Like youtube-dl does it with --write-thumbnail.

Also to have predefined --write-description is would be nice (currently it's possible to do manually with "postprocessors" option).

Not only for Instagram.

[mikf]

f8230dd adds a previews option that downloads the display_url from video posts. The issue with that is its default archive-id, which is the same as for the video itself.

Also to have predefined --write-description is would be nice (currently it's possible to do manually with "postprocessors" option).

Would be nice, but that'll have to wait till v2.0.
I could add something that writes descriptions per file, but that would be as redundant as the current --dump-json. I'd rather wait and have an option that writes descriptions etc per post.