GIF Music thumnale.

[Sam8688]

Checklist

• [ ] This feature I'm requesting is already implemented in yt-dlp.
• [ ] This feature is merely a UI/UX update.
• [ ] This feature is suitable for primary users with little knowledge about yt-dlp.
• [ ] This feature is available for most websites, not only the video platform I use.
• [ ] This feature is suitable for a large variety of videos.
• [X] This feature is not going to conflict with many of the existing options.

Is your feature request related to a problem? Please describe.

No response

Describe the solution you'd like

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Video link

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Additional context

When downloading, for example, a YouTube video. and you are saving the video as audio only. Give an option to convert a part of the video into a GIF that will be used as the audio cover. Namida is a music app that can play MP3s with GIF covers.