List CoreAudio devices in Swift

ListCoreAudioDevices.swift

import Foundation
import CoreAudio

var propertyAddress = AudioObjectPropertyAddress(mSelector: kAudioHardwarePropertyDevices, mScope: kAudioObjectPropertyScopeGlobal, mElement: kAudioObjectPropertyElementMaster)
var propertySize:UInt32 = 0


if AudioObjectGetPropertyDataSize(AudioObjectID(kAudioObjectSystemObject), &propertyAddress, 0, nil, &propertySize) == noErr {

    let numDevices = Int(propertySize) / MemoryLayout<AudioDeviceID>.size

    var deviceIDs = [AudioDeviceID](repeating: 0, count: numDevices)

    if AudioObjectGetPropertyData(AudioObjectID(kAudioObjectSystemObject), &propertyAddress, 0, nil, &propertySize, &deviceIDs) == noErr {

        var deviceAddress = AudioObjectPropertyAddress()
        var deviceNameCString = [CChar](repeating:0, count: 64)
        var manufacturerNameCString = [CChar](repeating:0, count: 64)

        for idx in (0..<numDevices) {
            //            print("\(deviceIDs[idx])\n")

            propertySize = UInt32(MemoryLayout<CChar>.size * 64)
            deviceAddress.mSelector = kAudioDevicePropertyDeviceName
            deviceAddress.mScope = kAudioObjectPropertyScopeGlobal
            deviceAddress.mElement = kAudioObjectPropertyElementMaster

            if AudioObjectGetPropertyData(deviceIDs[idx], &deviceAddress, 0, nil, &propertySize, &deviceNameCString) == noErr {

                let deviceName = String(cString:deviceNameCString)

                propertySize = UInt32(MemoryLayout<CChar>.size * 64)
                deviceAddress.mSelector = kAudioDevicePropertyDeviceManufacturer
                deviceAddress.mScope = kAudioObjectPropertyScopeGlobal
                deviceAddress.mElement = kAudioObjectPropertyElementMaster

                if (AudioObjectGetPropertyData(deviceIDs[idx], &deviceAddress, 0, nil, &propertySize, &manufacturerNameCString) == noErr) {

                    let manufacturerName = String(cString:manufacturerNameCString)

                    var uidString = "" as CFString
                    propertySize = UInt32(MemoryLayout.size(ofValue: uidString))

                    deviceAddress.mSelector = kAudioDevicePropertyDeviceUID
                    deviceAddress.mScope = kAudioObjectPropertyScopeGlobal
                    deviceAddress.mElement = kAudioObjectPropertyElementMaster

                    if (AudioObjectGetPropertyData(deviceIDs[idx], &deviceAddress, 0, nil, &propertySize, &uidString) == noErr) {

                        print("device \(deviceName)\nby \(manufacturerName)\nid \(uidString)\n\n")

                    }

                }
            }

        }
    }

}

airplay device missing