Port to GTK4+libadwaita

[TheEvilSkeleton]

Any plans on porting to GTK4+libadwaita?

[jeffshee]

@TheEvilSkeleton Actually, I'm not sure. For the GUI part (the control panel that write the config file), yes it's possible. But for the window that display the video wallpaper, it has some technical difficulties.

• GTK4 doesn't have a way to embed vlc by design. We could switch to GStreamer (by using Gtk.MediaFile), but that requires some reimplantation and I'm not too sure with the performance and stability.

[VarLad]

@jeffshee Currently it uses mpv right? I can't get the hw acceleration to work with Hidamari (installed from Flathub) + MPV :/
Any way to force the --hwdec=auto-safe params?
I found the same issue in Celluloid Flatpak but loading an mpv config file with hwdec=auto-safe solved that for me

[jeffshee]

@VarLad No, it uses VLC. You should make a new issue since your topic is different from OP. I will move yours over there.

[VarLad]

@jeffshee I'd guess Gstreamer would be a lot lighter of an alternative to VLC?
and since this is Linux-only, I'd think Gstreamer would be a better choice.

[jeffshee]

@VarLad It might be. However, Gstreamer integration in Gtk4 seems half-baked, based on my experience. If we really want to switch to Gstreamer, I think we should first make a minimal Gstreamer video player (in Gtk4 ofcuz) and do some unit testing.