UltraBlurProcessor Log Messages?

Does anyone know what this is related to ?

Oct 25, 2024 11:47:11.598 [140022464391992] DEBUG - [UltraBlurProcessor] Generated for item 219647 in 0 ms.

When I do a library scan this comes up over 50 times. I don’t ever remember seeing these before so am curious what its related to.

[plex]-[dokuro]:/data/MediaServer$ grep -a "UltraBlurProcessor" /var/lib/plexmediaserver/Library/Application\ Support/Plex\ Media\ Server/Logs/Plex\ Media\ Server*.log | wc -l
58
[plex]-[dokuro]:/data/MediaServer$

The above count is after scrubbing the logs and running an library scan against movies, tv and music libaries.

I’m also running server version 1.41.2.9092 in-case that is a factor.

Is best seen when looking at the library over a slow connection.
Before the actual poster pictures are loaded, the rectangle is filled with a color gradient, with its 4 corner colors defined by the original poster.
It looks like an ultra-blurred version of the poster, but it’s actually generated on the fly, based on 4 simple hex-numbers for the colors. So very few bits are needed to make the list look semi-good even if the connection to the server is very poor.

The same numbers are used in some clients to generate the background color gradient on preplay pages.
Forerunner to all these was Plexamp, which uses extracted colors from covers extensively.

Well, okay!

However, something must have changed in server version 1.41.2.9092 as …

[plex]-[dokuro]:/data/MediaServer$ grep -a "UltraBlurProcessor" /var/lib/plexmediaserver/Library/Application\ Support/Plex\ Media\ Server/Logs/Plex\ Media\ Server*.log | wc -l
14121
[plex]-[dokuro]:/data/MediaServer$

… and that’s over 14k messages since I scrubbed the logs yesterday. Searching the forum for UltraBlurProcessor and this is the only thread found. So no one EVER with all the logs posted has seen this message before.