feat: add dynamic audio output handling (#985) #1034
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,207 @@ | ||
| // | ||
| // AudioOutputRouteResolver.swift | ||
| // boringNotch | ||
| // | ||
| // Shared output-route to icon mapping used by all OSD/HUD surfaces. | ||
| // | ||
|
|
||
| import CoreAudio | ||
| import CoreGraphics | ||
| import Foundation | ||
|
|
||
| enum AudioOutputRouteKind: Equatable { | ||
| case builtInSpeaker | ||
| case wiredHeadphones | ||
| case airPods | ||
| case airPodsPro | ||
| case airPodsMax | ||
| case bluetoothHeadphones | ||
| case externalSpeaker | ||
| case unknown | ||
| } | ||
|
|
||
| final class AudioOutputRouteResolver { | ||
| static let shared = AudioOutputRouteResolver() | ||
|
|
||
| private let stateQueue = DispatchQueue(label: "AudioOutputRouteResolver.state") | ||
| private var cachedRouteKind: AudioOutputRouteKind = .unknown | ||
|
|
||
| func volumeSymbol(for value: CGFloat) -> String { | ||
| let clampedValue = max(0, min(1, value)) | ||
| let routeKind = stateQueue.sync { cachedRouteKind } | ||
|
|
||
| switch routeKind { | ||
| case .airPods: | ||
| return "airpods" | ||
| case .airPodsPro: | ||
| return "airpodspro" | ||
| case .airPodsMax: | ||
| return "airpodsmax" | ||
| case .wiredHeadphones, .bluetoothHeadphones: | ||
| return "headphones" | ||
| case .builtInSpeaker, .externalSpeaker, .unknown: | ||
| return speakerSymbol(for: clampedValue) | ||
| } | ||
| } | ||
|
|
||
| private init() { | ||
| refreshCachedRouteKind() | ||
| setupAudioRouteListener() | ||
| } | ||
|
|
||
| private func setupAudioRouteListener() { | ||
| var defaultDeviceAddress = AudioObjectPropertyAddress( | ||
| mSelector: kAudioHardwarePropertyDefaultOutputDevice, | ||
| mScope: kAudioObjectPropertyScopeGlobal, | ||
| mElement: kAudioObjectPropertyElementMain | ||
| ) | ||
| AudioObjectAddPropertyListenerBlock( | ||
| AudioObjectID(kAudioObjectSystemObject), | ||
| &defaultDeviceAddress, | ||
| nil | ||
| ) { [weak self] _, _ in | ||
| self?.refreshCachedRouteKind() | ||
| } | ||
| } | ||
|
|
||
| private func refreshCachedRouteKind() { | ||
| let currentRoute = currentRouteKind() | ||
| stateQueue.sync { | ||
| self.cachedRouteKind = currentRoute | ||
| } | ||
| } | ||
|
|
||
| private func currentRouteKind() -> AudioOutputRouteKind { | ||
| let deviceID = systemOutputDeviceID() | ||
| guard deviceID != kAudioObjectUnknown else { return .unknown } | ||
|
|
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| let deviceName = readStringProperty(deviceID: deviceID, selector: kAudioObjectPropertyName) | ||
| let manufacturer = readStringProperty( | ||
| deviceID: deviceID, | ||
| selector: kAudioObjectPropertyManufacturer | ||
| ) | ||
| let transportType = readTransportType(deviceID: deviceID) | ||
|
|
||
| return classifyOutputRoute( | ||
| deviceName: deviceName, | ||
| manufacturer: manufacturer, | ||
| transportType: transportType | ||
| ) | ||
| } | ||
|
|
||
| private func systemOutputDeviceID() -> AudioObjectID { | ||
| var defaultDeviceID = kAudioObjectUnknown | ||
| var propertyAddress = AudioObjectPropertyAddress( | ||
| mSelector: kAudioHardwarePropertyDefaultOutputDevice, | ||
| mScope: kAudioObjectPropertyScopeGlobal, | ||
| mElement: kAudioObjectPropertyElementMain | ||
| ) | ||
| var dataSize = UInt32(MemoryLayout<AudioObjectID>.size) | ||
| let status = AudioObjectGetPropertyData( | ||
| AudioObjectID(kAudioObjectSystemObject), | ||
| &propertyAddress, | ||
| 0, | ||
| nil, | ||
| &dataSize, | ||
| &defaultDeviceID | ||
| ) | ||
| return status == noErr ? defaultDeviceID : kAudioObjectUnknown | ||
| } | ||
|
|
||
| private func classifyOutputRoute( | ||
| deviceName: String, | ||
| manufacturer _: String, | ||
| transportType: UInt32? | ||
| ) -> AudioOutputRouteKind { | ||
| let normalizedName = deviceName.lowercased() | ||
|
|
||
| if normalizedName.contains("airpods max") { | ||
| return .airPodsMax | ||
| } | ||
| if normalizedName.contains("airpods pro") { | ||
| return .airPodsPro | ||
| } | ||
| if normalizedName.contains("airpods") { | ||
| return .airPods | ||
| } | ||
|
|
||
| let isHeadphonesLike = normalizedName.contains("headphone") | ||
| || normalizedName.contains("headset") | ||
| || normalizedName.contains("earbud") | ||
| || normalizedName.contains("earphone") | ||
| || normalizedName.contains("pods") | ||
|
|
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| switch transportType { | ||
| case kAudioDeviceTransportTypeBuiltIn: | ||
| return isHeadphonesLike ? .wiredHeadphones : .builtInSpeaker | ||
| case kAudioDeviceTransportTypeBluetooth, kAudioDeviceTransportTypeBluetoothLE: | ||
| return .bluetoothHeadphones | ||
| case kAudioDeviceTransportTypeUSB: | ||
| return .wiredHeadphones | ||
| case kAudioDeviceTransportTypeHDMI, kAudioDeviceTransportTypeDisplayPort: | ||
| return isHeadphonesLike ? .wiredHeadphones : .externalSpeaker | ||
|
Member
There was a problem hiding this comment. What is the point of this check? My understanding is this will always be an externalSpeaker if its a display, right? |
||
| default: | ||
| if isHeadphonesLike { | ||
| return .wiredHeadphones | ||
| } | ||
| if normalizedName.contains("speaker") || normalizedName.contains("display") { | ||
| return .externalSpeaker | ||
| } | ||
| return .unknown | ||
| } | ||
| } | ||
|
|
||
| private func readTransportType(deviceID: AudioObjectID) -> UInt32? { | ||
| var transportType: UInt32 = 0 | ||
| var address = AudioObjectPropertyAddress( | ||
| mSelector: kAudioDevicePropertyTransportType, | ||
| mScope: kAudioObjectPropertyScopeGlobal, | ||
| mElement: kAudioObjectPropertyElementMain | ||
| ) | ||
| var dataSize = UInt32(MemoryLayout<UInt32>.size) | ||
|
|
||
| let status = AudioObjectGetPropertyData( | ||
| deviceID, | ||
| &address, | ||
| 0, | ||
| nil, | ||
| &dataSize, | ||
| &transportType | ||
| ) | ||
|
|
||
| return status == noErr ? transportType : nil | ||
| } | ||
|
|
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| private func readStringProperty( | ||
| deviceID: AudioObjectID, | ||
| selector: AudioObjectPropertySelector | ||
| ) -> String { | ||
| var address = AudioObjectPropertyAddress( | ||
| mSelector: selector, | ||
| mScope: kAudioObjectPropertyScopeGlobal, | ||
| mElement: kAudioObjectPropertyElementMain | ||
| ) | ||
|
|
||
| var value: CFString = "" as CFString | ||
| var propertySize: UInt32 = UInt32(MemoryLayout<CFString>.size) | ||
| guard AudioObjectGetPropertyData(deviceID, &address, 0, nil, &propertySize, &value) == noErr | ||
| else { | ||
| return "" | ||
| } | ||
|
|
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| return value as String | ||
| } | ||
|
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| private func speakerSymbol(for value: CGFloat) -> String { | ||
| switch value { | ||
| case 0: | ||
| return "speaker.slash.fill" | ||
| case 0...0.33: | ||
| return "speaker.wave.1" | ||
| case 0.33...0.66: | ||
| return "speaker.wave.2" | ||
| default: | ||
| return "speaker.wave.3" | ||
| } | ||
| } | ||
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|
||
| } | ||
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I think some improvements can be made here, but I have to look into this more. This is more of a note to me than a blocker for merging.