[Question] Handling device disconnects

[JamesMoreau]

So I have a music player application and I would like for the user to be able to select the audio output device.

The user could switch devices or unplug it in the middle of a track. So, I need to be able to rebuild the stream at any point.

However, I noticed, at least on macOS, that upon disconnecting a device (in this case my headphones), the audio gets automatically rerouted to another device all on its own. This is nice but now I no longer know what the current device actually is. Which means that my application state, which display the current device, is now out of sync.

Is there a way to turn off this feature, or is it something the OS does? Otherwise, is it possible to listen for a particular stream event? Or maybe just even be able to query the current output device given a particular stream?

Thanks.

[roderickvd]

It's currently hardcoded:

cpal/src/host/coreaudio/macos/mod.rs

Line 673 in 1c9c642

add_disconnect_listener(&stream, error_callback_disconnect)?;

Could be knob to add in #1010.