Hi all,

I'm probably going to start developing this project

I need several days to bring my current Harmattan project to solid shape and ready for Ovi Store. So we have time to discuss technical details and overall design now.


I thought about than and I think that pure Xlib wont be the case. It seems that audioplayer will heavily rely on D-Bus and it needs more advanced graphics and user interaction than Telescope. All of these could be much easier to implement with Glib & GTK.
Actually, i don't expect that GTK can add much memory requirements because all its libs are already in RAM on Maemo. But it will make it much easier to integrate D-Bus, for example.
But using GTK woth plain C is a pain and tears So, i'm thinking of using Vala. Vala is a kind of preprocessor that takes sources in Vala language which is C#-styled with automatic memory management, closures, and very tight GTK integration and builds plain C code that then compiled with regular gcc and works nearly as fast as hand-written C program. I think this is the best approach that combines modern language's features & conding speed and low-level performance of C.

What about audio engine. I think we can start with GStreamer because it very common and is native for Maemo. And on Diablo there is GStreamer plugin for playing mp3 via DSP, which i expect to be best choice for 90% of users. But i think that player's code need to be designed with support of different engines in mind.

By the way, does anybody has ready solution for how to react on headset button press? I think it could be figured out from 'headphoned' (right?) sources, but may be someone remembers exact D-Bus signal name?