[Feature request]: Support for 10 bit color depth

[sorcererlc]

Is your feature request related to a problem? Please describe

I recently bought an OLED monitor and was playing around with color depth and HDR and it seems that setting color depth to 10bit prevents Luciferin from capturing the screen. It just spams the log with INFO o.d.g.GrabberManager [gstreamer service thread 1] Restarting pipeline.

I am using the latest flatpak release so I don't know if a specific GSstreamer version is packaged with it or if it's using the one installed by Arch but for reference, I have extra/gstreamer 1.26.3-1 at the time of writing.

Describe the solution you'd like

A very quick search suggests that GStreamer supports 10bit color but I didn't go into any details about it so it might be that adding support for 10bit color is as easy as updating some configuration or it might be a very huge undertaking :)

Either way, since support for HDR is in its infancy on Hyprland anyway I would classify this as a nice to have at best.

Describe alternatives you've considered

No response

[sblantipodi]

Hi @sorcererlc
thanks for reporting this issue and welcome back :)

mmm... I need to investigate this issue further because I don't have an answer at the moment.

I am using HDR and 10bit on Ubuntu 25.04 on an Nvidia GPU and it works well on the Flatpak version of Luciferin.

You can think of Flatpak as a sandboxed container that abstracts away what's installed on your system.
If you use Flatpak, the version of GStreamer on your system doesn't matter, because Flatpak already includes all the correct libraries and dependencies needed for Luciferin.

I have no answer at the moment but it's surely something I'll look into it.

If you discover something else, please share it.

In the meantime, did you tried recording the screen with OBS? Does OBS works with 10 bit?

[sorcererlc]

Hi,

I would assume Ubuntu and/or Gnome handle HDR better than Hyprland. As of now Hyprland only offers very minimal desktop HDR and HDR passthrough in fullscreen (though I couldn't get that to work either yet 😄 ).

I know flatpaks generally come bundled with their dependencies but I vaguely remember reading somewhere that they can also use system dependencies if they want to? Though that would invalidate the entire point of flatpak in my opinion.

I haven't tried OBS with 10bit until now but it too gets confused by this.
I'm starting to think this is a Hyprland issue, not a Luciferin issue 😄

[sblantipodi]

I know flatpaks generally come bundled with their dependencies but I vaguely remember reading somewhere that they can also use system dependencies if they want to? Though that would invalidate the entire point of flatpak in my opinion.

you are right, Flatpak can do that but Luciferin uses it the it's intended and does not use external libs. :)

it can be a Luciferin issue, who knows, I'll leave this open until we have more infos on it.

Thanks!