Add crossfade playback option with configurable duration

main/common/settings/default-settings.ts

@@ -82,6 +82,8 @@ export const DEFAULT_SETTINGS = {
     fullPlayerPositionSizeMaximized: '50;50;1000;650;0',
     coverPlayerPosition: '50;50',
     useGaplessPlayback: false,
+    useCrossfade: false,
+    crossfadeDuration: 5,
     jumpToPlayingSong: true,
     showSquareImages: false,
     useCompactYearView: false,

src/app/common/settings/settings.base.ts

@@ -86,6 +86,8 @@ export abstract class SettingsBase {
     public abstract fullPlayerPositionSizeMaximized: string;
     public abstract coverPlayerPosition: string;
     public abstract useGaplessPlayback: boolean;
+    public abstract useCrossfade: boolean;
+    public abstract crossfadeDuration: number;
     public abstract jumpToPlayingSong: boolean;
     public abstract showSquareImages: boolean;
     public abstract useCompactYearView: boolean;

src/app/common/settings/settings.ts

@@ -817,6 +817,24 @@ export class Settings implements SettingsBase {
         this.set('useGaplessPlayback', v);
     }
 
+    // useCrossfade
+    public get useCrossfade(): boolean {
+        return this.get<boolean>('useCrossfade');
+    }
+
+    public set useCrossfade(v: boolean) {
+        this.set('useCrossfade', v);
+    }
+
+    // crossfadeDuration
+    public get crossfadeDuration(): number {
+        return this.get<number>('crossfadeDuration');
+    }
+
+    public set crossfadeDuration(v: number) {
+        this.set('crossfadeDuration', v);
+    }
+
     // jumpToPlayingSong
     public get jumpToPlayingSong(): boolean {
         return this.get<boolean>('jumpToPlayingSong');

src/app/services/playback/audio-player/audio-player.factory.ts

@@ -17,7 +17,7 @@ export class AudioPlayerFactory {
     public create(): IAudioPlayer {
         if (this.settings.useGaplessPlayback) {
             this.logger.info('Creating GaplessAudioPlayer for audio playback.', 'AudioPlayerFactory', 'create');
-            return new GaplessAudioPlayer(this.mathExtensions, this.logger);
+            return new GaplessAudioPlayer(this.mathExtensions, this.logger, this.settings);
         } else {
             this.logger.info('Creating LegacyAudioPlayer for audio playback.', 'AudioPlayerFactory', 'create');
             return new LegacyAudioPlayer(this.mathExtensions, this.logger);