Comment 3 for bug 1368827

<slangasek> rsalveti: so the idea here is that the sink-input-by-media-role:$foo are only present if we're on touch?
<rsalveti> slangasek: they can be part of the desktop, but the dbus module that export that interface to the indicator is only available on touch
<rsalveti> the stream can have basically any role, as the app is responsible for setting that up, we just have a small set of supported ones on touch
<rsalveti> and this additional work was to enable this extra dbus interface so it can be used to change volume per roles
<rsalveti> so if the dbus interface and the needed roles are not available in the stream-restore internal database, it'll act like today (only controlling the main sink)
<rsalveti> if the dbus interface is available, and the required set of roles are available in stream-restore, then the volume will reflect on the current active role (or alert by default)
<slangasek> ok. what package provides this new dbus interface?
<rsalveti> slangasek: pulse itself, but that's disabled by default, and the config enabling that is part of ubuntu-touch-session

FFe approved.