refactor(ios): add audio session manager (#4466)

ios/Video/AudioSessionManager.swift

@@ -0,0 +1,325 @@
+import AVFoundation
+import Foundation
+
+class AudioSessionManager {
+    static let shared = AudioSessionManager()
+
+    private var videoViews = NSHashTable<RCTVideo>.weakObjects()
+    private var isAudioSessionActive = false
+    private var remoteControlEventsActive = false
+
+    private init() {
+        // Subscribe to audio interruption notifications
+        NotificationCenter.default.addObserver(
+            self,
+            selector: #selector(handleAudioSessionInterruption),
+            name: AVAudioSession.interruptionNotification,
+            object: nil
+        )
+
+        // Subscribe to route change notifications
+        NotificationCenter.default.addObserver(
+            self,
+            selector: #selector(handleAudioRouteChange),
+            name: AVAudioSession.routeChangeNotification,
+            object: nil
+        )
+    }
+
+    deinit {
+        NotificationCenter.default.removeObserver(self)
+    }
+
+    // MARK: - Public API
+
+    func registerView(view: RCTVideo) {
+        if videoViews.contains(view) {
+            return
+        }
+
+        videoViews.add(view)
+        updateAudioSessionConfiguration()
+    }
+
+    func unregisterView(view: RCTVideo) {
+        if !videoViews.contains(view) {
+            return
+        }
+
+        videoViews.remove(view)
+        updateAudioSessionConfiguration()
+
+        if videoViews.allObjects.isEmpty && !remoteControlEventsActive {
+            deactivateAudioSession()
+        }
+    }
+
+    func updateAudioSessionConfiguration() {
+        // Activate audio session if needed
+        let isAnyPlayerPlaying = videoViews.allObjects.contains { view in
+            return !view.isMuted() && view._player != nil && view._player?.rate != 0
+        }
+
+        if isAnyPlayerPlaying || remoteControlEventsActive {
+            activateAudioSession()
+        }
+
+        configureAudioSession()
+    }
+
+    // Handle remote control events from NowPlayingInfoCenterManager
+    func setRemoteControlEventsActive(_ active: Bool) {
+        remoteControlEventsActive = active
+
+        if active {
+            // Force playback category and activate session when remote control events are active
+            configureForRemoteControlEvents()
+        } else {
+            // If no active players, we can deactivate the session
+            if !videoViews.allObjects.contains(where: { view in
+                return view._player != nil && view._player?.rate != 0
+            }) {
+                deactivateAudioSession()
+            } else {
+                // Otherwise reconfigure based on current players
+                updateAudioSessionConfiguration()
+            }
+        }
+    }
+
+    // Notification that a player's properties have changed
+    func playerPropertiesChanged(view: RCTVideo) {
+        // Only update if this is a registered view
+        if videoViews.contains(view) {
+            updateAudioSessionConfiguration()
+        }
+    }
+
+    // MARK: - Audio Session Configuration
+
+    private func configureForRemoteControlEvents() {
+        let audioSession = AVAudioSession.sharedInstance()
+
+        do {
+            // Remote control events always need playback category
+            try audioSession.setCategory(.playback, mode: .moviePlayback)
+            activateAudioSession()
+        } catch {
+            print(
+                "Failed to configure audio session for remote control events: \(error.localizedDescription)"
+            )
+        }
+    }
+
+    private func configureAudioSession() {
+        let audioSession = AVAudioSession.sharedInstance()
+        var options: AVAudioSession.CategoryOptions = []
+
+        // Check player properties
+        let anyPlayerShowNotificationControls = videoViews.allObjects.contains { view in
+            return view._showNotificationControls
+        }
+
+        let anyPlayerNeedsPiP = videoViews.allObjects.contains { view in
+            return view.isPictureInPictureActive()
+        }
+
+        let anyPlayerNeedsBackgroundPlayback = videoViews.allObjects.contains { view in
+            return view._playInBackground
+        }
+
+        let canAllowMixing = !anyPlayerShowNotificationControls && !anyPlayerNeedsBackgroundPlayback
+
+        if canAllowMixing {
+            let shouldEnableMixing = videoViews.allObjects.contains { view in
+                return view._mixWithOthers == "mix"
+            }
+
+            let shouldEnableDucking = videoViews.allObjects.contains { view in
+                return view._mixWithOthers == "duck"
+            }
+
+            if shouldEnableMixing && shouldEnableDucking {
+                print(
+                    "Warning: Conflicting mixWithOthers settings found (mix vs duck) - defaulting to mix"
+                )
+                options.insert(.mixWithOthers)
+            } else {
+                if shouldEnableMixing {
+                    options.insert(.mixWithOthers)
+                }
+
+                if shouldEnableDucking {
+                    options.insert(.duckOthers)
+                }
+            }
+        }
+
+        let isAnyPlayerUsingEarpiece = videoViews.allObjects.contains { view in
+            return view._audioOutput == "earpiece"
+        }
+
+        let isSilentSwitchIgnore = videoViews.allObjects.contains { view in
+            return view._ignoreSilentSwitch == "ignore"
+        }
+
+        let isSilentSwitchObey = videoViews.allObjects.contains { view in
+            return view._ignoreSilentSwitch == "obey"
+        }
+
+        // Determine audio category based on player requirements
+        let category = determineAudioCategory(
+            silentSwitchObey: isSilentSwitchObey,
+            silentSwitchIgnore: isSilentSwitchIgnore,
+            earpiece: isAnyPlayerUsingEarpiece,
+            pip: anyPlayerNeedsPiP,
+            backgroundPlayback: anyPlayerNeedsBackgroundPlayback,
+            notificationControls: anyPlayerShowNotificationControls
+        )
+
+        do {
+            try audioSession.setCategory(
+                category, mode: .moviePlayback, options: canAllowMixing ? options : []
+            )
+
+            // Configure audio port
+            if isAnyPlayerUsingEarpiece, audioSession.category == .playAndRecord {
+                #if os(iOS) || os(visionOS)
+                    try audioSession.overrideOutputAudioPort(.speaker)
+                #endif
+            } else {
+                try audioSession.overrideOutputAudioPort(.none)
+            }
+        } catch {
+            print("Failed to configure audio session: \(error.localizedDescription)")
+        }
+    }
+
+    private func determineAudioCategory(
+        silentSwitchObey: Bool,
+        silentSwitchIgnore: Bool,
+        earpiece: Bool,
+        pip: Bool,
+        backgroundPlayback: Bool,
+        notificationControls: Bool
+    ) -> AVAudioSession.Category {
+        // Handle conflicting settings
+        if silentSwitchObey && silentSwitchIgnore {
+            print(
+                "Warning: Conflicting ignoreSilentSwitch settings found (obey vs ignore) - defaulting to ignore"
+            )
+            return .playback
+        }
+
+        // PiP, background playback, or notification controls require playback category
+        if pip || backgroundPlayback || notificationControls || remoteControlEventsActive {
+            if silentSwitchObey {
+                print(
+                    "Warning: ignoreSilentSwitch=obey cannot be used with PiP, backgroundPlayback, or notification controls - using playback category"
+                )
+            }
+
+            if earpiece {
+                print(
+                    "Warning: audioOutput=earpiece cannot be used with PiP, backgroundPlayback, or notification controls - using playback category"
+                )
+            }
+
+            return .playback
+        }
+
+        // Earpiece requires playAndRecord
+        if earpiece {
+            if silentSwitchObey {
+                print(
+                    "Warning: audioOutput=earpiece cannot be used with ignoreSilentSwitch=obey - using playAndRecord category"
+                )
+            }
+            return .playAndRecord
+        }
+
+        // Honor silent switch if requested
+        if silentSwitchObey {
+            return .ambient
+        }
+
+        // Default to playback for most cases
+        return .playback
+    }
+
+    private func activateAudioSession() {
+        if isAudioSessionActive {
+            return
+        }
+
+        do {
+            try AVAudioSession.sharedInstance().setActive(true)
+            isAudioSessionActive = true
+        } catch {
+            print("Failed to activate audio session: \(error.localizedDescription)")
+        }
+    }
+
+    private func deactivateAudioSession() {
+        if !isAudioSessionActive {
+            return
+        }
+
+        do {
+            try AVAudioSession.sharedInstance().setActive(
+                false, options: .notifyOthersOnDeactivation
+            )
+            isAudioSessionActive = false
+        } catch {
+            print("Failed to deactivate audio session: \(error.localizedDescription)")
+        }
+    }
+
+    // MARK: - Notification Handlers
+
+    @objc
+    private func handleAudioSessionInterruption(notification: Notification) {
+        guard let userInfo = notification.userInfo,
+              let typeValue = userInfo[AVAudioSessionInterruptionTypeKey] as? UInt,
+              let type = AVAudioSession.InterruptionType(rawValue: typeValue)
+        else {
+            return
+        }
+
+        switch type {
+        case .began:
+            // Audio session interrupted, nothing to do as players will pause automatically
+            break
+
+        case .ended:
+            // Interruption ended, check if we should resume audio session
+            if let optionsValue = userInfo[AVAudioSessionInterruptionOptionKey] as? UInt {
+                let options = AVAudioSession.InterruptionOptions(rawValue: optionsValue)
+                if options.contains(.shouldResume) {
+                    updateAudioSessionConfiguration()
+                }
+            }
+
+        @unknown default:
+            break
+        }
+    }
+
+    @objc
+    private func handleAudioRouteChange(notification: Notification) {
+        guard let userInfo = notification.userInfo,
+              let reasonValue = userInfo[AVAudioSessionRouteChangeReasonKey] as? UInt,
+              let reason = AVAudioSession.RouteChangeReason(rawValue: reasonValue)
+        else {
+            return
+        }
+
+        switch reason {
+        case .categoryChange, .override, .wakeFromSleep, .newDeviceAvailable, .oldDeviceUnavailable:
+            // Reconfigure audio session when route changes
+            updateAudioSessionConfiguration()
+        default:
+            break
+        }
+    }
+}

ios/Video/Features/RCTPlayerOperations.swift

@@ -128,9 +128,14 @@ enum RCTPlayerOperations {
         await player?.currentItem?.select(mediaOption, in: group)
     }
 
-    static func seek(player: AVPlayer, playerItem: AVPlayerItem, paused: Bool, seekTime: Float, seekTolerance: Float, completion: @escaping (Bool) -> Void) {
+    static func seek(
+        player: AVPlayer, playerItem: AVPlayerItem, paused: Bool, seekTime: Float,
+        seekTolerance: Float, completion: @escaping (Bool) -> Void
+    ) {
         let timeScale = 1000
-        let cmSeekTime: CMTime = CMTimeMakeWithSeconds(Float64(seekTime), preferredTimescale: Int32(timeScale))
+        let cmSeekTime: CMTime = CMTimeMakeWithSeconds(
+            Float64(seekTime), preferredTimescale: Int32(timeScale)
+        )
         let current: CMTime = playerItem.currentTime()
         let tolerance: CMTime = CMTimeMake(value: Int64(seekTolerance), timescale: Int32(timeScale))
 
@@ -141,63 +146,11 @@ enum RCTPlayerOperations {
 
         if !paused { player.pause() }
 
-        player.seek(to: cmSeekTime, toleranceBefore: tolerance, toleranceAfter: tolerance, completionHandler: { (finished: Bool) in
+        player.seek(
+            to: cmSeekTime, toleranceBefore: tolerance, toleranceAfter: tolerance,
+            completionHandler: { (finished: Bool) in
                 completion(finished)
-        })
             }
-
-    static func configureAudio(ignoreSilentSwitch: String, mixWithOthers: String, audioOutput: String) {
-        let audioSession: AVAudioSession! = AVAudioSession.sharedInstance()
-        var category: AVAudioSession.Category?
-        var options: AVAudioSession.CategoryOptions?
-
-        if ignoreSilentSwitch == "ignore" {
-            category = audioOutput == "earpiece" ? AVAudioSession.Category.playAndRecord : AVAudioSession.Category.playback
-        } else if ignoreSilentSwitch == "obey" {
-            category = AVAudioSession.Category.ambient
-        }
-
-        if mixWithOthers == "mix" {
-            options = .mixWithOthers
-        } else if mixWithOthers == "duck" {
-            options = .duckOthers
-        }
-
-        if let category, let options {
-            do {
-                try audioSession.setCategory(category, options: options)
-            } catch {
-                debugPrint("[RCTPlayerOperations] Problem setting up AVAudioSession category and options. Error: \(error).")
-                #if !os(tvOS)
-                    // Handle specific set category and option combination error
-                    // setCategory:AVAudioSessionCategoryPlayback withOptions:mixWithOthers || duckOthers
-                    // Failed to set category, error: 'what' Error Domain=NSOSStatusErrorDomain
-                    // https://developer.apple.com/forums/thread/714598
-                    if #available(iOS 16.0, *) {
-                        do {
-                            debugPrint("[RCTPlayerOperations] Reseting AVAudioSession category to playAndRecord with defaultToSpeaker options.")
-                            try audioSession.setCategory(
-                                audioOutput == "earpiece" ? AVAudioSession.Category.playAndRecord : AVAudioSession.Category.playback,
-                                options: AVAudioSession.CategoryOptions.defaultToSpeaker
         )
-                        } catch {
-                            debugPrint("[RCTPlayerOperations] Reseting AVAudioSession category and options problem. Error: \(error).")
-                        }
-                    }
-                #endif
-            }
-        } else if let category, options == nil {
-            do {
-                try audioSession.setCategory(category)
-            } catch {
-                debugPrint("[RCTPlayerOperations] Problem setting up AVAudioSession category. Error: \(error).")
-            }
-        } else if category == nil, let options {
-            do {
-                try audioSession.setCategory(audioSession.category, options: options)
-            } catch {
-                debugPrint("[RCTPlayerOperations] Problem setting up AVAudioSession options. Error: \(error).")
-            }
-        }
     }
 }

ios/Video/NowPlayingInfoCenterManager.swift

@@ -22,14 +22,14 @@ class NowPlayingInfoCenterManager {
 
     private let remoteCommandCenter = MPRemoteCommandCenter.shared()
 
-    private var receivingRemoveControlEvents = false {
+    var receivingRemoveControlEvents = false {
         didSet {
             if receivingRemoveControlEvents {
-                try? AVAudioSession.sharedInstance().setCategory(.playback)
+                AudioSessionManager.shared.setRemoteControlEventsActive(true)
-                try? AVAudioSession.sharedInstance().setActive(true)
                 UIApplication.shared.beginReceivingRemoteControlEvents()
             } else {
                 UIApplication.shared.endReceivingRemoteControlEvents()
+                AudioSessionManager.shared.setRemoteControlEventsActive(false)
             }
         }
     }

ios/Video/RCTVideo.swift

@@ -9,7 +9,7 @@ import React
 // MARK: - RCTVideo
 
 class RCTVideo: UIView, RCTVideoPlayerViewControllerDelegate, RCTPlayerObserverHandler {
-    private var _player: AVPlayer?
+    var _player: AVPlayer?
     private var _playerItem: AVPlayerItem?
     private var _source: VideoSource?
     private var _playerLayer: AVPlayerLayer?
@@ -30,7 +30,7 @@ class RCTVideo: UIView, RCTVideoPlayerViewControllerDelegate, RCTPlayerObserverH
     private var _controls = false
 
     /* Keep track of any modifiers, need to be applied after each play */
-    private var _audioOutput: String = "speaker"
+    var _audioOutput: String = "speaker"
     private var _volume: Float = 1.0
     private var _rate: Float = 1.0
     private var _maxBitRate: Float?
@@ -44,12 +44,12 @@ class RCTVideo: UIView, RCTVideoPlayerViewControllerDelegate, RCTPlayerObserverH
     private var _selectedTextTrackCriteria: SelectedTrackCriteria = .none()
     private var _selectedAudioTrackCriteria: SelectedTrackCriteria = .none()
     private var _playbackStalled = false
-    private var _playInBackground = false
+    var _playInBackground = false
     private var _preventsDisplaySleepDuringVideoPlayback = true
     private var _preferredForwardBufferDuration: Float = 0.0
     private var _playWhenInactive = false
-    private var _ignoreSilentSwitch: String = "inherit" // inherit, ignore, obey
+    var _ignoreSilentSwitch: String = "inherit" // inherit, ignore, obey
-    private var _mixWithOthers: String = "inherit" // inherit, mix, duck
+    var _mixWithOthers: String = "inherit" // inherit, mix, duck
     private var _resizeMode: String = "cover"
     private var _fullscreen = false
     private var _fullscreenAutorotate = true
@@ -60,7 +60,7 @@ class RCTVideo: UIView, RCTVideoPlayerViewControllerDelegate, RCTPlayerObserverH
     private var _filterEnabled = false
     private var _presentingViewController: UIViewController?
     private var _startPosition: Float64 = -1
-    private var _showNotificationControls = false
+    var _showNotificationControls = false
     // Buffer last bitrate value received. Initialized to -2 to ensure -1 (sometimes reported by AVPlayer) is not missed
     private var _lastBitrate = -2.0
     private var _enterPictureInPictureOnLeave = false {
@@ -204,6 +204,8 @@ class RCTVideo: UIView, RCTVideoPlayerViewControllerDelegate, RCTPlayerObserverH
 
         _eventDispatcher = eventDispatcher
 
+        AudioSessionManager.shared.registerView(view: self)
+
         #if os(iOS)
             if _enterPictureInPictureOnLeave {
                 initPictureinPicture()
@@ -286,6 +288,7 @@ class RCTVideo: UIView, RCTVideoPlayerViewControllerDelegate, RCTPlayerObserverH
             _imaAdsManager.releaseAds()
             _imaAdsManager = nil
         #endif
+        AudioSessionManager.shared.unregisterView(view: self)
 
         NotificationCenter.default.removeObserver(self)
         self.removePlayerLayer()
@@ -298,7 +301,9 @@ class RCTVideo: UIView, RCTVideoPlayerViewControllerDelegate, RCTPlayerObserverH
         #if os(iOS)
             _pip = nil
         #endif
+
         ReactNativeVideoManager.shared.unregisterView(newInstance: self)
+        AudioSessionManager.shared.unregisterView(view: self)
     }
 
     // MARK: - App lifecycle handlers
@@ -767,13 +772,10 @@ class RCTVideo: UIView, RCTVideoPlayerViewControllerDelegate, RCTPlayerObserverH
     @objc
     func setEnterPictureInPictureOnLeave(_ enterPictureInPictureOnLeave: Bool) {
         #if os(iOS)
-            let audioSession = AVAudioSession.sharedInstance()
-            do {
-                try audioSession.setCategory(.playback)
-                try audioSession.setActive(true, options: [])
-            } catch {}
             if _enterPictureInPictureOnLeave != enterPictureInPictureOnLeave {
                 _enterPictureInPictureOnLeave = enterPictureInPictureOnLeave
+
+                AudioSessionManager.shared.playerPropertiesChanged(view: self)
             }
         #endif
     }
@@ -792,14 +794,15 @@ class RCTVideo: UIView, RCTVideoPlayerViewControllerDelegate, RCTPlayerObserverH
     @objc
     func setIgnoreSilentSwitch(_ ignoreSilentSwitch: String?) {
         _ignoreSilentSwitch = ignoreSilentSwitch ?? "inherit"
-        RCTPlayerOperations.configureAudio(ignoreSilentSwitch: _ignoreSilentSwitch, mixWithOthers: _mixWithOthers, audioOutput: _audioOutput)
+
-        applyModifiers()
+        AudioSessionManager.shared.playerPropertiesChanged(view: self)
     }
 
     @objc
     func setMixWithOthers(_ mixWithOthers: String?) {
         _mixWithOthers = mixWithOthers ?? "inherit"
-        applyModifiers()
+
+        AudioSessionManager.shared.playerPropertiesChanged(view: self)
     }
 
     @objc
@@ -814,8 +817,6 @@ class RCTVideo: UIView, RCTVideoPlayerViewControllerDelegate, RCTPlayerObserverH
                 _player?.rate = 0.0
             }
         } else {
-            RCTPlayerOperations.configureAudio(ignoreSilentSwitch: _ignoreSilentSwitch, mixWithOthers: _mixWithOthers, audioOutput: _audioOutput)
-
             if _adPlaying {
                 #if USE_GOOGLE_IMA
                     _imaAdsManager.getAdsManager()?.resume()
@@ -832,6 +833,7 @@ class RCTVideo: UIView, RCTVideoPlayerViewControllerDelegate, RCTPlayerObserverH
         }
 
         _paused = paused
+        AudioSessionManager.shared.playerPropertiesChanged(view: self)
     }
 
     @objc
@@ -896,18 +898,9 @@ class RCTVideo: UIView, RCTVideoPlayerViewControllerDelegate, RCTPlayerObserverH
     @objc
     func setAudioOutput(_ audioOutput: String) {
         _audioOutput = audioOutput
-        RCTPlayerOperations.configureAudio(ignoreSilentSwitch: _ignoreSilentSwitch, mixWithOthers: _mixWithOthers, audioOutput: _audioOutput)
+
-        do {
+        // Notify AudioSessionManager about the change instead of directly configuring
-            if audioOutput == "speaker" {
+        AudioSessionManager.shared.playerPropertiesChanged(view: self)
-                #if os(iOS) || os(visionOS)
-                    try AVAudioSession.sharedInstance().overrideOutputAudioPort(AVAudioSession.PortOverride.speaker)
-                #endif
-            } else if audioOutput == "earpiece" {
-                try AVAudioSession.sharedInstance().overrideOutputAudioPort(AVAudioSession.PortOverride.none)
-            }
-        } catch {
-            print("Error occurred: \(error.localizedDescription)")
-        }
     }
 
     @objc
@@ -982,13 +975,14 @@ class RCTVideo: UIView, RCTVideoPlayerViewControllerDelegate, RCTPlayerObserverH
         }
 
         setSelectedTextTrack(_selectedTextTrackCriteria)
-        setAudioOutput(_audioOutput)
         setSelectedAudioTrack(_selectedAudioTrackCriteria)
         setResizeMode(_resizeMode)
         setRepeat(_repeat)
         setControls(_controls)
         setPaused(_paused)
         setAllowsExternalPlayback(_allowsExternalPlayback)
+
+        AudioSessionManager.shared.playerPropertiesChanged(view: self)
     }
 
     @objc
@@ -1370,6 +1364,10 @@ class RCTVideo: UIView, RCTVideoPlayerViewControllerDelegate, RCTPlayerObserverH
             player.pause()
             NowPlayingInfoCenterManager.shared.removePlayer(player: player)
         }
+
+        // Unregister from AudioSessionManager
+        AudioSessionManager.shared.unregisterView(view: self)
+
         _playerItem = nil
         _source = nil
         _chapters = nil