feat: configurable audio normalization switch

lib/l10n/app_en.arb

@@ -264,5 +264,6 @@
   "use_system_title_bar": "Use system title bar",
   "crunching_results": "Crunching results...",
   "search_to_get_results": "Search to get results",
-  "use_amoled_dark_theme": "Use AMOLED (Pitch Black) dark theme"
+  "use_amoled_dark_theme": "Use AMOLED (Pitch Black) dark theme",
+  "normalize_audio": "Normalize audio"
 }

lib/pages/settings/settings.dart

@@ -448,6 +448,13 @@ class SettingsPage extends HookConsumerWidget {
                           },
                           trailing: const Icon(SpotubeIcons.angleRight),
                         ),
+                        SwitchListTile(
+                          secondary: const Icon(SpotubeIcons.playlistRemove),
+                          title: Text(context.l10n.normalize_audio),
+                          subtitle: Text(context.l10n.blacklist_description),
+                          value: preferences.normalizeAudio,
+                          onChanged: preferences.setNormalizeAudio,
+                        ),
                       ],
                     ),
                     SectionCardWithHeading(

lib/provider/user_preferences_provider.dart

@@ -10,6 +10,7 @@ import 'package:spotube/components/settings/color_scheme_picker_dialog.dart';
 import 'package:spotube/models/matched_track.dart';
 import 'package:spotube/provider/palette_provider.dart';
 import 'package:spotube/provider/proxy_playlist/proxy_playlist_provider.dart';
+import 'package:spotube/services/audio_player/audio_player.dart';
 
 import 'package:spotube/utils/persisted_change_notifier.dart';
 import 'package:spotube/utils/platform.dart';
@@ -70,6 +71,8 @@ class UserPreferences extends PersistedChangeNotifier {
 
   bool amoledDarkTheme;
 
+  bool normalizeAudio;
+
   final Ref ref;
 
   UserPreferences(
@@ -92,6 +95,7 @@ class UserPreferences extends PersistedChangeNotifier {
     this.youtubeApiType = YoutubeApiType.youtube,
     this.systemTitleBar = false,
     this.amoledDarkTheme = false,
+    this.normalizeAudio = true,
   }) : super() {
     if (downloadLocation.isEmpty && !kIsWeb) {
       _getDefaultDownloadDirectory().then(
@@ -219,6 +223,13 @@ class UserPreferences extends PersistedChangeNotifier {
     updatePersistence();
   }
 
+  void setNormalizeAudio(bool normalize) {
+    normalizeAudio = normalize;
+    audioPlayer.setAudioNormalization(normalize);
+    notifyListeners();
+    updatePersistence();
+  }
+
   Future<String> _getDefaultDownloadDirectory() async {
     if (kIsAndroid) return "/storage/emulated/0/Download/Spotube";
 
@@ -285,6 +296,9 @@ class UserPreferences extends PersistedChangeNotifier {
     setSystemTitleBar(systemTitleBar);
 
     amoledDarkTheme = map["amoledDarkTheme"] ?? amoledDarkTheme;
+
+    normalizeAudio = map["normalizeAudio"] ?? normalizeAudio;
+    audioPlayer.setAudioNormalization(normalizeAudio);
   }
 
   @override
@@ -309,6 +323,7 @@ class UserPreferences extends PersistedChangeNotifier {
       "youtubeApiType": youtubeApiType.name,
       'systemTitleBar': systemTitleBar,
       "amoledDarkTheme": amoledDarkTheme,
+      "normalizeAudio": normalizeAudio,
     };
   }
 

lib/services/audio_player/audio_player.dart

@@ -24,10 +24,6 @@ abstract class AudioPlayerInterface {
         )
   // _justAudio = !_mkSupportedPlatform ? ja.AudioPlayer() : null
   {
-    //? Normalizing the audio
-    (_mkPlayer.platform as mk.NativePlayer)
-        .setProperty('af', 'dynaudnorm=g=5:f=250:r=0.9:p=0.5');
-
     _mkPlayer.stream.error.listen((event) {
       Catcher.reportCheckedError(event, StackTrace.current);
     });

lib/services/audio_player/audio_player_impl.dart

@@ -312,4 +312,8 @@ class SpotubeAudioPlayer extends AudioPlayerInterface
     //   await _justAudio!.setLoopMode(loop.toLoopMode());
     // }
   }
+
+  Future<void> setAudioNormalization(bool normalize) async {
+    await _mkPlayer.setAudioNormalization(normalize);
+  }
 }

lib/services/audio_player/mk_state_player.dart

@@ -318,4 +318,14 @@ class MkPlayerWithState extends Player {
       index: newMedias.indexOf(_playlist!.medias[_playlist!.index]),
     );
   }
+
+  NativePlayer get nativePlayer => platform as NativePlayer;
+
+  Future<void> setAudioNormalization(bool normalize) async {
+    if (normalize) {
+      await nativePlayer.setProperty('af', 'dynaudnorm=g=5:f=250:r=0.9:p=0.5');
+    } else {
+      await nativePlayer.setProperty('af', '');
+    }
+  }
 }

untranslated_messages.json

@@ -1,45 +1,56 @@
 {
   "bn": [
-    "use_amoled_dark_theme"
+    "use_amoled_dark_theme",
+    "normalize_audio"
   ],
 
   "ca": [
-    "use_amoled_dark_theme"
+    "use_amoled_dark_theme",
+    "normalize_audio"
   ],
 
   "de": [
-    "use_amoled_dark_theme"
+    "use_amoled_dark_theme",
+    "normalize_audio"
   ],
 
   "es": [
-    "use_amoled_dark_theme"
+    "use_amoled_dark_theme",
+    "normalize_audio"
   ],
 
   "fr": [
-    "use_amoled_dark_theme"
+    "use_amoled_dark_theme",
+    "normalize_audio"
   ],
 
   "hi": [
-    "use_amoled_dark_theme"
+    "use_amoled_dark_theme",
+    "normalize_audio"
   ],
 
   "ja": [
-    "use_amoled_dark_theme"
+    "use_amoled_dark_theme",
+    "normalize_audio"
   ],
 
   "pl": [
-    "use_amoled_dark_theme"
+    "use_amoled_dark_theme",
+    "normalize_audio"
   ],
 
   "pt": [
-    "use_amoled_dark_theme"
+    "use_amoled_dark_theme",
+    "normalize_audio"
   ],
 
   "ru": [
-    "use_amoled_dark_theme"
+    "use_amoled_dark_theme",
+    "normalize_audio"
   ],
 
   "zh": [
-    "use_amoled_dark_theme"
+    "use_amoled_dark_theme",
+    "normalize_audio"
   ]
 }