[Feature] Transcoded video details (size, bitrate, size compared to original)

I have searched the existing feature requests to make sure this is not a duplicate request.

• Yes

The feature

It would be nice to see further stats in the information section for individual assets like:
1. Size of the transcoded video
2. Bitrate
3. Size as % or original

These three things are derivable from info in the HTTP request already (i.e. Range: bytes=0-20822087), with no backend support needed. These would help users tune their transcoding settings well + let users know if a particular video _has_ been transcoded already without having to check the db. I think this would also be a good first issue.

An expansion on this would involve storing the transcoding settings applied to a particular transcoded video so that users could view this, but this would require backend support.

Platform

• Server
• Web
• Mobile