Can the site be modified without breaking it so that ad... file-names are placed into an /ah/ folder or something so that ad-block users don't mistakenly flag posts that don't work for them?

I wanted to ask before making a tracker ticket or anything.

Yes, but it would complicate the code and would require a lot of internal checks whenever the site needs to link to the image (which includes every time it is displayed). I have no idea how much this would impact the site.

From the help page: gelbooru.com/index.php?page=help&topic=post

Image 1: gelbooru.com/counter/help/images/1.jpg (7.68:1)
Image 2:gelbooru.com/counter/help/images/2.jpg (10.23:1)
Image 3: gelbooru.com/counter/help/images/3.jpg (12.93:1)
Image 4: gelbooru.com/counter/help/images/4mspaint.jpg (26.09:1)

Uncompressed size (excluding headers) = 473x459x3 = 651321 Bytes. I think the minimum compression for a jpeg is 2.6:1. (Q=100% or losless)

I think the help page used to say "Don't upload images with heavy compression" (Image 3) but now it says "Don't upload images with artifacts." (Image 2)

Can staff get a tool for searching these?
---- We can already sort by height and width but not by file-size.

Can the site be modified to not accept file uploads of jpg/jpeg files with compression greater than 10.2:1 (arbitrary)?
----Original files only, previews and thumbnails generated by the site are exempt.

I wanted to ask before making a tracker ticket or anything.

This would make some heavy chores much easier for the staff.

We've never had a problem with light compression if there was no other alternative, so I don't see why we would need to go to lengths such as that. Especially now that artists are making a habit of uploading images to Twitter, which naturally compresses them.

This is also why I never fully understood why such a habit has been made to nuke those idolmaster/highschool dxd cards on sight, for example, but

The value is arbitrary. We can limit it to heavy compression if we wanted to.




That was the assistant admin's idea.

Nope. We don't have filesize indexed in the database or the searcher, so it's impossible to do this at the moment. It wouldn't be too difficult to modify the code to start doing this, but we'd need to index the filesize for all 2.7m+ posts before it would be useful, which would probably take multiple days to finish.



In theory yes. In practice, I'm not sure, since I don't know how ImageMagick checks an image's compression ratio. If it does it based on EXIF metadata, that can easily be altered and gotten around. If it actually analyzes the image to calculate the compression ratio, I'm not sure how much processing power that takes.

Are there any guidelines on how to make better quality WebM to work on Gelbooru? I uploaded my first WebM with pretty good quality ( original file here www.mediafire.com/watch/bm70a1r404xcm1k/Untitled-hb20.mp4 ) and imo it looks horrible converted gelbooru.com/index.php?page=post&s=view&id=2763232
Also I could just experiment with this but don't know if I can delete my own uploads.

If you upload the file as an actual WebM file, we won't reconvert it. That's the best way to avoid quality loss from conversion.

Only moderators can delete uploads.

Good to know.
Could you remove my upload then? I'll change it to webm and upload it again.

We'll remove it after the higher-quality version has been uploaded.