Mert

Can you apply this change to the dev and prod Compose files as well? It's better if they follow the release file as closely as possible.

This is very strange. Are you using any non-default transcoding settings? In particular are you using hardware acceleration? Also, could you share a sample video I can use to reproduce...

I did some testing with this and found that the issue happens when tone-mapping these videos. It can't interpret the peak brightness of the video correctly and thinks it's 0.005...

Update: I tested with a bleeding edge FFmpeg build and it tone-mapped correctly. It looks like it was an FFmpeg bug after all.

You would have to make a Dockerfile extending from the microservices image that installs the bleeding edge FFmpeg version. I used the `master` variant from [this](https://github.com/BtbN/FFmpeg-Builds/releases) page. You would also...

Keep in mind that this requires you to use a custom chart and will hence be more complicated than your existing setup. I don't recommend it if you're new to...

This should be fixed with #9402. It uses a different library for tone-mapping that doesn't have this issue.

Sorry, we ended up not using that library. We might use it for a different hardware API in the future, or upgrade to 7.0 once Jellyfin makes that upgrade.

Can you try re-transcoding with 1.118.2 and clearing your browser cache to make it show the new transcode? We upgraded FFmpeg, so this should be fixed.

How much RAM does the server have, and how much is used just after starting thumbnail generation? An increase in memory usage for some period of time during thumbnail generation...