AVPlayer background music mode

Model/Player/Backends/AVPlayerBackend.swift

@@ -588,6 +588,42 @@ final class AVPlayerBackend: PlayerBackend {
         controlsUpdates = false
     }
 
+    func startMusicMode() {
+        if model.playingInPictureInPicture {
+            closePiP()
+        }
+
+        playerLayer.player = nil
+
+        toggleVisualTracksEnabled(false)
+    }
+
+    func stopMusicMode() {
+        playerLayer.player = avPlayer
+
+        toggleVisualTracksEnabled(true)
+    }
+
+    func toggleVisualTracksEnabled(_ value: Bool) {
+        if let item = avPlayer.currentItem {
+            for playerItemTrack in item.tracks {
+                if let assetTrack = playerItemTrack.assetTrack,
+                   assetTrack.hasMediaCharacteristic(AVMediaCharacteristic.visual)
+                {
+                    playerItemTrack.isEnabled = value
+                }
+            }
+        }
+    }
+
+    func didChangeTo() {
+        if model.musicMode {
+            startMusicMode()
+        } else {
+            stopMusicMode()
+        }
+    }
+
     func setNeedsDrawing(_: Bool) {}
     func setSize(_: Double, _: Double) {}
     func setNeedsNetworkStateUpdates(_: Bool) {}

Model/Player/Backends/MPVBackend.swift

@@ -512,4 +512,36 @@ final class MPVBackend: PlayerBackend {
             networkStateTimer.pause()
         }
     }
+
+    func startMusicMode() {
+        setVideoToNo()
+    }
+
+    func stopMusicMode() {
+        addVideoTrackFromStream()
+        setVideoToAuto()
+
+        controls.resetTimer()
+    }
+
+    func addVideoTrackFromStream() {
+        if let videoTrackURL = model.stream?.videoAsset?.url,
+           tracks < 2
+        {
+            logger.info("adding video track")
+            addVideoTrack(videoTrackURL)
+        }
+
+        setVideoToAuto()
+    }
+
+    func didChangeTo() {
+        setNeedsDrawing(model.presentingPlayer)
+
+        if model.musicMode {
+            startMusicMode()
+        } else {
+            stopMusicMode()
+        }
+    }
 }

Model/Player/Backends/PlayerBackend.swift

@@ -47,10 +47,15 @@ protocol PlayerBackend {
 
     func closePiP()
 
+    func startMusicMode()
+    func stopMusicMode()
+
     func updateControls()
     func startControlsUpdates()
     func stopControlsUpdates()
 
+    func didChangeTo()
+
     func setNeedsNetworkStateUpdates(_ needsUpdates: Bool)
 
     func setNeedsDrawing(_ needsDrawing: Bool)

Model/Player/PlayerControlsModel.swift

@@ -38,14 +38,18 @@ final class PlayerControlsModel: ObservableObject {
 
     func handlePresentationChange() {
         DispatchQueue.main.async { [weak self] in
-            guard let self = self else { return }
+            guard let self = self,
+                  let player = self.player else { return }
             if self.presentingControls {
-                self.player?.backend.startControlsUpdates()
+                player.backend.startControlsUpdates()
                 self.resetTimer()
             } else {
-                self.player?.backend.stopControlsUpdates()
+                if !player.musicMode {
-                self.timer?.invalidate()
+                    player.backend.stopControlsUpdates()
-                self.timer = nil
+                    self.removeTimer()
+                } else {
+                    self.presentingControls = true
+                }
             }
         }
     }
@@ -132,6 +136,8 @@ final class PlayerControlsModel: ObservableObject {
     }
 
     func startPiP(startImmediately: Bool = true) {
+        player?.avPlayerBackend.startPictureInPictureOnPlay = true
+
         #if !os(macOS)
             player.exitFullScreen()
         #endif
@@ -143,7 +149,6 @@ final class PlayerControlsModel: ObservableObject {
         }
 
         DispatchQueue.main.asyncAfter(deadline: .now() + 0.2) { [weak player] in
-            player?.avPlayerBackend.startPictureInPictureOnPlay = true
             if startImmediately {
                 player?.pipController?.startPictureInPicture()
             }

Model/Player/PlayerModel.swift

@@ -226,11 +226,13 @@ final class PlayerModel: ObservableObject {
 
         navigation.hideKeyboard()
 
+        if !presentingPlayer {
             DispatchQueue.main.async { [weak self] in
                 withAnimation(.linear(duration: 0.25)) {
                     self?.presentingPlayer = true
                 }
             }
+        }
 
         #if os(macOS)
             Windows.player.open()
@@ -340,14 +342,30 @@ final class PlayerModel: ObservableObject {
     func play(_ video: Video, at time: CMTime? = nil, showingPlayer: Bool = true) {
         pause()
 
+        var changeBackendHandler: (() -> Void)?
+
+        if let backend = qualityProfile?.backend ?? QualityProfilesModel.shared.automaticProfile?.backend,
+           activeBackend != backend,
+           backend == .appleAVPlayer || !avPlayerBackend.startPictureInPictureOnPlay
+        {
+            changeBackendHandler = { [weak self] in
+                guard let self = self else { return }
+                self.changeActiveBackend(from: self.activeBackend, to: backend)
+            }
+        }
+
         #if os(iOS)
             if !playingInPictureInPicture, showingPlayer {
-                onPresentPlayer = { [weak self] in self?.playNow(video, at: time) }
+                onPresentPlayer = { [weak self] in
+                    changeBackendHandler?()
+                    self?.playNow(video, at: time)
+                }
                 show()
                 return
             }
         #endif
 
+        changeBackendHandler?()
         playNow(video, at: time)
 
         guard !playingInPictureInPicture else {
@@ -493,16 +511,12 @@ final class PlayerModel: ObservableObject {
         Defaults[.activeBackend] = to
         self.activeBackend = to
 
+        self.backend.didChangeTo()
+
         guard var stream = stream else {
             return
         }
 
-        if to == .mpv {
-            addVideoTrackFromStream()
-        } else {
-            musicMode = false
-        }
-
         let fromBackend: PlayerBackend = from == .appleAVPlayer ? avPlayerBackend : mpvBackend
         let toBackend: PlayerBackend = to == .appleAVPlayer ? avPlayerBackend : mpvBackend
 
@@ -534,7 +548,6 @@ final class PlayerModel: ObservableObject {
                 return
             }
             self.upgradeToStream(stream, force: true)
-            self.setNeedsDrawing(self.presentingPlayer)
         }
     }
 
@@ -756,6 +769,7 @@ final class PlayerModel: ObservableObject {
     #else
         func handleEnterForeground() {
             setNeedsDrawing(presentingPlayer)
+            avPlayerBackend.playerLayer.player = avPlayerBackend.avPlayer
 
             guard closePiPAndOpenPlayerOnEnteringForeground, playingInPictureInPicture else {
                 return
@@ -766,10 +780,10 @@ final class PlayerModel: ObservableObject {
         }
 
         func handleEnterBackground() {
-            setNeedsDrawing(false)
-
             if Defaults[.pauseOnEnteringBackground], !playingInPictureInPicture, !musicMode {
                 pause()
+            } else if !playingInPictureInPicture {
+                avPlayerBackend.playerLayer.player = nil
             }
         }
     #endif
@@ -872,34 +886,17 @@ final class PlayerModel: ObservableObject {
         musicMode.toggle()
 
         if musicMode {
-            if playingInPictureInPicture {
-                avPlayerBackend.pause()
-                closePiP()
-            }
-            changeActiveBackend(from: .appleAVPlayer, to: .mpv)
             controls.presentingControls = true
             controls.removeTimer()
-            mpvBackend.setVideoToNo()
+
+            backend.startMusicMode()
         } else {
-            addVideoTrackFromStream()
+            backend.stopMusicMode()
-            mpvBackend.setVideoToAuto()
 
             controls.resetTimer()
         }
     }
 
-    func addVideoTrackFromStream() {
-        if let videoTrackURL = stream?.videoAsset?.url,
-           mpvBackend.tracks < 2
-        {
-            logger.info("adding video track")
-
-            mpvBackend.addVideoTrack(videoTrackURL)
-        }
-
-        mpvBackend.setVideoToAuto()
-    }
-
     func updateAspectRatio() {
         #if !os(tvOS)
             guard aspectRatio != backend.aspectRatio else { return }

Shared/Player/VideoPlayerView.swift

@@ -90,7 +90,7 @@ struct VideoPlayerView: View {
                             Spacer()
                         #endif
                     }
-                    #if os(macOS)
+                    #if !os(tvOS)
                     .frame(width: player.playerSize.width)
                     #endif
 
@@ -103,6 +103,11 @@ struct VideoPlayerView: View {
                 #endif
             }
         }
+        .onAppear {
+            if player.musicMode {
+                player.backend.startControlsUpdates()
+            }
+        }
     }
 
     var videoPlayer: some View {
@@ -435,10 +440,14 @@ struct VideoPlayerView: View {
                     guard player.presentingPlayer,
                           !playerControls.presentingControlsOverlay else { return }
 
-                    if playerControls.presentingControls {
+                    if playerControls.presentingControls, !player.musicMode {
                         playerControls.presentingControls = false
                     }
 
+                    if player.musicMode {
+                        player.backend.stopControlsUpdates()
+                    }
+
                     let drag = value.translation.height
 
                     guard drag > 0 else { return }
@@ -479,6 +488,10 @@ struct VideoPlayerView: View {
                 }
                 player.backend.setNeedsDrawing(true)
                 player.show()
+
+                if player.musicMode {
+                    player.backend.startControlsUpdates()
+                }
             }
         }