As part of a spike to study the viability of using...

# compose-desktop

[miguelsesma]

As part of a spike to study the viability of using Compose Desktop for an IOT project, I have just managed to run a compose window with an embedded CEF Chromium browser in Ubuntu arm64.

Next step is getting rid of the window manager and if possible of X11. I have no idea of how to start doing that. Any guidance / advice /sample project would be welcomed. :D

[SrSouza]

Take a look at this implementation using JWM from @smallshen: https://github.com/smallshen/JWM-Compose

[SrSouza]

JWM: https://github.com/HumbleUI/JWM

[Adam Brown]

oh man I'm very interested in this!

[Adam Brown]

I used to use Android Things for IOT, but google of course canned it 😕

[mikehearn]

IOT + Chromium seems like quite a surprising combination! What's the browser for if you don't mind me asking?

[miguelsesma]

My plan is to create a kiosk app that will run in a dedicated arm64 device (Like a Raspberry PI). I need an embedded browser to show WebRTC video streams.

[miguelsesma]

Unfortunately I have just discovered that I cannot place any composable on top of a SwingPanel 😞
I'll finally have to use Qt or GTK if I cannot place my UI on top of the browser.

[mikehearn]

Do they have to be WebRTC specifically? I think there's a CfD/VLC integration somewhere that lets you play all sorts of video streams using CfD

[mikehearn]

Alternatively, JavaFX has a MediaPlayer component that can play live HTTP video streams, I think.

[miguelsesma]

The issue with VLC is that in our experience it has a very big latency. Of every stream we have tested only WebRTC and GStreamer work for us.
I could test the JavaFx player, but it seems that it is decided going by the WebRTC way.
I have managed to put composables over SwingPanel using ComposePanel, but the look is not good. Discussed here: 41 minutes ago

[mikehearn]

JavaFX MediaPlayer is backed by GStreamer, btw. On Linux at least.

[mikehearn]

(you can also mix jfx and swing if necessary). Have no idea about the latency though.

[miguelsesma]

Thanks! I didn't know dat. I'll give it a try.

[mikehearn]

JFX also has an embedded version btw called Monocle. It uses the Linux kernel framebuffer directly.

[mikehearn]

Pity that CfD doesn't work for you directly, but with JavaFX you can still use Kotlin.

[miguelsesma]

Other solution would be using the cef-compose example, but I have many issue trying to compile it. It is using internal classes from skiko and seems to be a confussion between skia and skija

[miguelsesma]

Fixed the skija thing, but still having troubles with dkiko hardwarelayer being internal