Merge pull request #8 from dirtydishes/audio-track-selection

add native audio track selection

.beads/interactions.jsonl

@@ -23,6 +23,7 @@
 {"id":"int-4e095d3f","kind":"field_change","created_at":"2026-05-25T14:38:21.968713Z","actor":"dirtydishes","issue_id":"dreamio-djc","extra":{"field":"status","new_value":"closed","old_value":"in_progress","reason":"Auto-select the first discovered VLC subtitle track when playback is still disabled, while preserving manual caption choices."}}
 {"id":"int-96629c65","kind":"field_change","created_at":"2026-05-25T14:45:38.521113Z","actor":"dirtydishes","issue_id":"dreamio-ppj","extra":{"field":"status","new_value":"closed","old_value":"in_progress","reason":"Re-applied the auto-selected VLC subtitle track after stream discovery and playback state changes to harden rendering timing."}}
 {"id":"int-027cec57","kind":"field_change","created_at":"2026-05-25T14:51:44.599319Z","actor":"dirtydishes","issue_id":"dreamio-3xi","extra":{"field":"status","new_value":"closed","old_value":"in_progress","reason":"Captured OpenSubtitles V3 subtitle URLs from browser track elements and textTracks so they can be forwarded to native playback."}}
+{"id":"int-8f943c34","kind":"field_change","created_at":"2026-05-25T15:01:35.610049Z","actor":"dirtydishes","issue_id":"dreamio-bao","extra":{"field":"status","new_value":"closed","old_value":"open","reason":"Implemented native audio track discovery and selection with a far-left audio menu in the VLC-backed player."}}
 {"id":"int-3acaadff","kind":"field_change","created_at":"2026-05-25T15:09:02.023077Z","actor":"dirtydishes","issue_id":"dreamio-h5n","extra":{"field":"status","new_value":"closed","old_value":"in_progress","reason":"Limited VLC auto-subtitle reapply to real selection recovery while keeping bounded delayed startup confirmations."}}
 {"id":"int-c526b5ae","kind":"field_change","created_at":"2026-05-25T15:32:37.748454Z","actor":"dirtydishes","issue_id":"dreamio-dow","extra":{"field":"status","new_value":"closed","old_value":"in_progress","reason":"Implemented stream-keyed subtitle buffering, OpenSubtitles parser/resolver hardening, VLC refresh behavior, and focused validation."}}
 {"id":"int-320e7321","kind":"field_change","created_at":"2026-05-25T15:53:52.866657Z","actor":"dirtydishes","issue_id":"dreamio-hzj","extra":{"field":"status","new_value":"closed","old_value":"in_progress","reason":"Hardened OpenSubtitles candidate discovery, nested payload resolution, VLC external subtitle visibility selection, diagnostics, tests, and turn documentation."}}

Dreamio/NativePlaybackBackend.swift

@@ -6,12 +6,15 @@ protocol NativePlaybackBackend: AnyObject {
     var onFailure: ((Error) -> Void)? { get set }
     var onStateChange: (() -> Void)? { get set }
     var onSubtitleTracksChange: (() -> Void)? { get set }
+    var onAudioTracksChange: (() -> Void)? { get set }
     var isPlaying: Bool { get }
     var isSeekable: Bool { get }
     var duration: TimeInterval { get }
     var currentTime: TimeInterval { get }
     var remainingTime: TimeInterval { get }
     var position: Float { get }
+    var audioTracks: [AudioTrack] { get }
+    var selectedAudioTrackID: Int32 { get }
     var subtitleTracks: [SubtitleTrack] { get }
     var selectedSubtitleTrackID: Int32 { get }
     var subtitleDelay: TimeInterval { get }
@@ -23,6 +26,7 @@ protocol NativePlaybackBackend: AnyObject {
     func togglePlayPause()
     func seek(to position: Float)
     func jump(by seconds: TimeInterval)
+    func selectAudioTrack(id: Int32)
     func selectSubtitleTrack(id: Int32)
     func adjustSubtitleDelay(by seconds: TimeInterval)
     @discardableResult

Dreamio/NativePlayerViewController.swift

@@ -9,6 +9,7 @@ final class NativePlayerViewController: UIViewController {
     private var progressTimer: Timer?
     private var isScrubbing = false
     private var attachedSubtitleURLs: Set<URL>
+    private var audioMenuSignature: String?
     private var captionsMenuSignature: String?
     var onDismiss: (() -> Void)?
 
@@ -34,8 +35,11 @@ final class NativePlayerViewController: UIViewController {
     private let controlsContainer: UIVisualEffectView = {
         let view = UIVisualEffectView(effect: UIBlurEffect(style: .systemUltraThinMaterialDark))
         view.translatesAutoresizingMaskIntoConstraints = false
-        view.layer.cornerRadius = 16
+        view.layer.cornerRadius = 22
         view.clipsToBounds = true
+        view.backgroundColor = UIColor.white.withAlphaComponent(0.08)
+        view.layer.borderColor = UIColor.white.withAlphaComponent(0.18).cgColor
+        view.layer.borderWidth = 1
         return view
     }()
 
@@ -49,6 +53,7 @@ final class NativePlayerViewController: UIViewController {
     private let playPauseButton = NativePlayerViewController.iconButton(systemName: "pause.fill", label: "Play or Pause")
     private let jumpBackButton = NativePlayerViewController.iconButton(systemName: "gobackward.15", label: "Jump Back 15 Seconds")
     private let jumpForwardButton = NativePlayerViewController.iconButton(systemName: "goforward.15", label: "Jump Forward 15 Seconds")
+    private let audioButton = NativePlayerViewController.iconButton(systemName: "waveform.circle", label: "Audio Tracks")
     private let captionsButton = NativePlayerViewController.iconButton(systemName: "captions.bubble", label: "Captions")
 
     private let elapsedLabel: UILabel = {
@@ -229,6 +234,11 @@ final class NativePlayerViewController: UIViewController {
                 self?.refreshControls()
             }
         }
+        backend.onAudioTracksChange = { [weak self] in
+            DispatchQueue.main.async {
+                self?.refreshControls()
+            }
+        }
     }
 
     private func startStartupTimer() {
@@ -250,8 +260,9 @@ final class NativePlayerViewController: UIViewController {
         playPauseButton.addTarget(self, action: #selector(togglePlayPause), for: .touchUpInside)
         jumpBackButton.addTarget(self, action: #selector(jumpBack), for: .touchUpInside)
         jumpForwardButton.addTarget(self, action: #selector(jumpForward), for: .touchUpInside)
+        audioButton.showsMenuAsPrimaryAction = true
         captionsButton.showsMenuAsPrimaryAction = true
-        playPauseButton.layer.cornerRadius = 21
+        playPauseButton.layer.cornerRadius = 24
         scrubber.addTarget(self, action: #selector(scrubbingStarted), for: .touchDown)
         scrubber.addTarget(self, action: #selector(scrubberChanged), for: .valueChanged)
         scrubber.addTarget(self, action: #selector(scrubbingEnded), for: [.touchUpInside, .touchUpOutside, .touchCancel])
@@ -266,12 +277,19 @@ final class NativePlayerViewController: UIViewController {
         timeAndScrubRow.alignment = .center
         timeAndScrubRow.spacing = 8
 
-        let controlRow = UIStackView(arrangedSubviews: [jumpBackButton, playPauseButton, jumpForwardButton, captionsButton])
+        let playbackCluster = UIStackView(arrangedSubviews: [jumpBackButton, playPauseButton, jumpForwardButton])
+        playbackCluster.translatesAutoresizingMaskIntoConstraints = false
+        playbackCluster.axis = .horizontal
+        playbackCluster.alignment = .center
+        playbackCluster.distribution = .equalCentering
+        playbackCluster.spacing = 14
+
+        let controlRow = UIStackView(arrangedSubviews: [audioButton, playbackCluster, captionsButton])
         controlRow.translatesAutoresizingMaskIntoConstraints = false
         controlRow.axis = .horizontal
         controlRow.alignment = .center
-        controlRow.distribution = .equalSpacing
-        controlRow.spacing = 14
+        controlRow.distribution = .equalCentering
+        controlRow.spacing = 18
 
         let stack = UIStackView(arrangedSubviews: [timeAndScrubRow, controlRow])
         stack.translatesAutoresizingMaskIntoConstraints = false
@@ -322,6 +340,9 @@ final class NativePlayerViewController: UIViewController {
             playPauseButton.heightAnchor.constraint(equalToConstant: 42),
             jumpForwardButton.widthAnchor.constraint(equalToConstant: 36),
             jumpForwardButton.heightAnchor.constraint(equalToConstant: 36),
+            audioButton.widthAnchor.constraint(equalToConstant: 36),
+            audioButton.heightAnchor.constraint(equalToConstant: 36),
+            playbackCluster.centerXAnchor.constraint(equalTo: controlRow.centerXAnchor),
             captionsButton.widthAnchor.constraint(equalToConstant: 36),
             captionsButton.heightAnchor.constraint(equalToConstant: 36)
         ])
@@ -430,6 +451,36 @@ final class NativePlayerViewController: UIViewController {
         return UIMenu(title: "Captions", children: trackActions + [delayActions])
     }
 
+    private func audioMenu() -> UIMenu {
+        let selectedTrackID = backend.selectedAudioTrackID
+        let tracks = backend.audioTracks
+        let options = AudioOptionMapper.options(from: tracks)
+#if DEBUG
+        print("[DreamioAudio] build-menu tracks=\(SubtitleDebugFormatter.trackSummary(tracks)) selected=\(selectedTrackID)")
+#endif
+        let trackActions = options.map { track in
+            UIAction(
+                title: track.name,
+                state: track.id == selectedTrackID ? .on : .off
+            ) { [weak self] _ in
+                guard let self else {
+                    return
+                }
+#if DEBUG
+                print("[DreamioAudio] select-request id=\(track.id) name=\(track.name) before=\(self.backend.selectedAudioTrackID)")
+#endif
+                self.backend.selectAudioTrack(id: track.id)
+#if DEBUG
+                print("[DreamioAudio] select-result id=\(track.id) after=\(self.backend.selectedAudioTrackID) tracks=\(SubtitleDebugFormatter.trackSummary(self.backend.audioTracks))")
+#endif
+                self.audioMenuSignature = nil
+                self.refreshControls()
+            }
+        }
+
+        return UIMenu(title: "Audio", children: trackActions)
+    }
+
     private func startProgressUpdates() {
         progressTimer?.invalidate()
         progressTimer = Timer.scheduledTimer(withTimeInterval: 0.5, repeats: true) { [weak self] _ in
@@ -438,11 +489,13 @@ final class NativePlayerViewController: UIViewController {
     }
 
     private func refreshControls() {
+        let audioTracks = backend.audioTracks
         let subtitleTracks = backend.subtitleTracks
         playPauseButton.setImage(UIImage(systemName: backend.isPlaying ? "pause.fill" : "play.fill"), for: .normal)
         scrubber.isEnabled = backend.isSeekable
         jumpBackButton.isEnabled = backend.isSeekable
         jumpForwardButton.isEnabled = backend.isSeekable
+        updateAudioMenuIfNeeded(audioTracks: audioTracks)
         updateCaptionsMenuIfNeeded(subtitleTracks: subtitleTracks)
         elapsedLabel.text = PlaybackTimeFormatter.label(for: backend.currentTime)
         remainingLabel.text = "-\(PlaybackTimeFormatter.label(for: backend.remainingTime))"
@@ -452,6 +505,26 @@ final class NativePlayerViewController: UIViewController {
         [scrubber, jumpBackButton, jumpForwardButton].forEach { $0.alpha = backend.isSeekable ? 1 : 0.45 }
     }
 
+    private func updateAudioMenuIfNeeded(audioTracks: [AudioTrack]) {
+        let selectedTrackID = backend.selectedAudioTrackID
+        let signature = trackMenuSignatureValue(
+            tracks: audioTracks,
+            selectedTrackID: selectedTrackID
+        )
+        let hasSelectableTrack = AudioOptionMapper.options(from: audioTracks).count > 1
+        audioButton.isEnabled = hasSelectableTrack
+        audioButton.alpha = hasSelectableTrack ? 1 : 0.45
+        guard signature != audioMenuSignature else {
+            return
+        }
+
+        audioMenuSignature = signature
+        audioButton.menu = audioMenu()
+#if DEBUG
+        print("[DreamioAudio] refresh-menu enabled=\(audioButton.isEnabled) tracks=\(SubtitleDebugFormatter.trackSummary(audioTracks)) selected=\(selectedTrackID)")
+#endif
+    }
+
     private func updateCaptionsMenuIfNeeded(subtitleTracks: [SubtitleTrack]) {
         let selectedTrackID = backend.selectedSubtitleTrackID
         let signature = captionsMenuSignatureValue(
@@ -476,11 +549,19 @@ final class NativePlayerViewController: UIViewController {
         tracks: [SubtitleTrack],
         selectedTrackID: Int32,
         delay: TimeInterval
+    ) -> String {
+        let trackSignature = trackMenuSignatureValue(tracks: tracks, selectedTrackID: selectedTrackID)
+        return "\(trackSignature)#delay=\(String(format: "%.1f", delay))"
+    }
+
+    private func trackMenuSignatureValue(
+        tracks: [SubtitleTrack],
+        selectedTrackID: Int32
     ) -> String {
         let trackSignature = tracks
             .map { "\($0.id):\($0.name)" }
             .joined(separator: "|")
-        return "\(trackSignature)#selected=\(selectedTrackID)#delay=\(String(format: "%.1f", delay))"
+        return "\(trackSignature)#selected=\(selectedTrackID)"
     }
 
     private func revealControls() {
@@ -517,8 +598,10 @@ final class NativePlayerViewController: UIViewController {
         button.translatesAutoresizingMaskIntoConstraints = false
         button.setImage(UIImage(systemName: systemName), for: .normal)
         button.tintColor = .white
-        button.backgroundColor = UIColor.black.withAlphaComponent(0.35)
+        button.backgroundColor = UIColor.white.withAlphaComponent(0.12)
         button.layer.cornerRadius = 18
+        button.layer.borderColor = UIColor.white.withAlphaComponent(0.16).cgColor
+        button.layer.borderWidth = 1
         button.accessibilityLabel = label
         return button
     }

Dreamio/StreamCandidate.swift

@@ -40,6 +40,8 @@ struct SubtitleTrack: Equatable {
     let name: String
 }
 
+typealias AudioTrack = SubtitleTrack
+
 #if DEBUG
 enum SubtitleDebugFormatter {
     static func candidateSummary(_ candidates: [SubtitleCandidate]) -> String {
@@ -93,6 +95,12 @@ enum SubtitleOptionMapper {
     }
 }
 
+enum AudioOptionMapper {
+    static func options(from tracks: [AudioTrack]) -> [AudioTrack] {
+        tracks.filter { $0.id >= 0 }
+    }
+}
+
 struct StreamClassification {
     let sourceKind: StreamSourceKind
     let containerGuess: StreamContainerGuess

Dreamio/VLCNativePlaybackBackend.swift

@@ -18,6 +18,7 @@ final class VLCNativePlaybackBackend: NSObject, NativePlaybackBackend {
     var onFailure: ((Error) -> Void)?
     var onStateChange: (() -> Void)?
     var onSubtitleTracksChange: (() -> Void)?
+    var onAudioTracksChange: (() -> Void)?
 
 #if canImport(MobileVLCKit)
     private let mediaPlayer = VLCMediaPlayer()
@@ -108,6 +109,19 @@ final class VLCNativePlaybackBackend: NSObject, NativePlaybackBackend {
 #endif
     }
 
+    func selectAudioTrack(id: Int32) {
+#if canImport(MobileVLCKit)
+#if DEBUG
+        logAudioTracks(reason: "before-select-\(id)")
+#endif
+        mediaPlayer.currentAudioTrackIndex = id
+#if DEBUG
+        logAudioTracks(reason: "after-select-\(id)")
+#endif
+        onAudioTracksChange?()
+#endif
+    }
+
     func selectSubtitleTrack(id: Int32) {
 #if canImport(MobileVLCKit)
         didUserSelectSubtitleTrack = true
@@ -197,6 +211,26 @@ final class VLCNativePlaybackBackend: NSObject, NativePlaybackBackend {
 #endif
     }
 
+    var audioTracks: [AudioTrack] {
+#if canImport(MobileVLCKit)
+        let names = mediaPlayer.audioTrackNames as? [String] ?? []
+        let indexes = mediaPlayer.audioTrackIndexes as? [NSNumber] ?? []
+        return zip(indexes, names).map { index, name in
+            AudioTrack(id: index.int32Value, name: name)
+        }
+#else
+        []
+#endif
+    }
+
+    var selectedAudioTrackID: Int32 {
+#if canImport(MobileVLCKit)
+        mediaPlayer.currentAudioTrackIndex
+#else
+        -1
+#endif
+    }
+
     var subtitleTracks: [SubtitleTrack] {
 #if canImport(MobileVLCKit)
         let names = mediaPlayer.videoSubTitlesNames as? [String] ?? []
@@ -269,6 +303,12 @@ final class VLCNativePlaybackBackend: NSObject, NativePlaybackBackend {
     }
 
 #if DEBUG
+    private func logAudioTracks(reason: String) {
+        let names = mediaPlayer.audioTrackNames as? [String] ?? []
+        let indexes = mediaPlayer.audioTrackIndexes as? [NSNumber] ?? []
+        print("[DreamioVLC] audio tracks reason=\(reason) names=\(names) indexes=\(indexes.map { $0.int32Value }) selected=\(mediaPlayer.currentAudioTrackIndex)")
+    }
+
     private func logSubtitleTracks(reason: String) {
         let names = mediaPlayer.videoSubTitlesNames as? [String] ?? []
         let indexes = mediaPlayer.videoSubTitlesIndexes as? [NSNumber] ?? []
@@ -360,6 +400,7 @@ extension VLCNativePlaybackBackend: VLCMediaPlayerDelegate {
             reapplyAutoSelectedSubtitleTrackIfNeeded(reason: stateName(mediaPlayer.state))
             onReady?()
             onStateChange?()
+            onAudioTracksChange?()
         case .error:
             onFailure?(NativePlaybackError.playbackFailed)
         case .paused, .stopped, .ended:
@@ -367,8 +408,10 @@ extension VLCNativePlaybackBackend: VLCMediaPlayerDelegate {
         case .esAdded:
             selectPreferredSubtitleTrackIfNeeded(reason: "esAdded")
 #if DEBUG
+            logAudioTracks(reason: "esAdded")
             logSubtitleTracks(reason: "esAdded")
 #endif
+            onAudioTracksChange?()
             onSubtitleTracksChange?()
         default:
             break