[FFmpeg-user] Removing a metadata tag from a specfic stream

[MediaMouth]

> On Feb 6, 2021, at 3:12 AM, Thibeau <vercruyssen.thibeau at gmail.com> wrote:
> 
> Interestingly I can split the cover art out using ffmpeg. But even after that the metadata on the image itself I can’t seem to find a way to edit it. Tried exiftools and everything. So might just be a weird tag value



Thibeau, you may have already figured his much out...

This extracts the art:
> ffmpeg -i '29 My Girl.flac' -an -vcodec copy '29 My Girl.png'

This removes the art along with the associated metadata (comment=other)
> ffmpeg -i '29 My Girl.flac' -map 0 -map -0:v:0 -c copy '29 My Girl-NoArt.flac'

I'd be interested to know how to put the art back and if it's possible maybe assign metadata to that before or during that process.
If I'm understanding Paul, you can't edit the metadata on the art "stream" after the fact.