Automatically convert common macOS media formats

[subpop]

When attaching HEIC or MOV files, it would be nice to convert them to more universal formats before sending them, like PNG for images and MP4 for videos.

[rexbron]

I will say that the universality comes at the expense of file size :)

[subpop]

Do you find that file size is a contributing factor to your decision or ability to share media?

[rexbron]

It definitely is a factor for anyone who's account is on matrix.org :)

On my homeserver, space is not a large concern, though for large instances it can be.