feat: subtitle setting not preserved

Author: InfinityLoop1308

android/src/main/kotlin/project/pipepipe/app/platform/AndroidMediaController.kt

@@ -351,26 +351,15 @@ class AndroidMediaController(
 
     @OptIn(UnstableApi::class)
     override fun selectSubtitle(subtitle: SubtitleInfo) {
-        val tracks = mediaController.currentTracks
+        val params = mediaController.trackSelectionParameters
+            .buildUpon()
+            .setPreferredTextLanguages(subtitle.language)
+            .setTrackTypeDisabled(C.TRACK_TYPE_TEXT, false)
+            .build()
+        mediaController.trackSelectionParameters = params
 
-        for (trackGroup in tracks.groups) {
-            trackGroup.find { format ->
-                format.language == subtitle.language && trackGroup.type == C.TRACK_TYPE_TEXT
-            }?.let { format ->
-                val trackIndex = trackGroup.indexOfFirst { it == format }
-                if (trackIndex >= 0) {
-                    val params = mediaController.trackSelectionParameters
-                        .buildUpon()
-                        .setOverrideForType(
-                            TrackSelectionOverride(trackGroup.mediaTrackGroup, trackIndex)
-                        )
-                        .setTrackTypeDisabled(C.TRACK_TYPE_TEXT, false)
-                        .build()
-                    mediaController.trackSelectionParameters = params
-                }
-                break
-            }
-        }
+        // Save user preference
+        SharedContext.settingsManager.putString("caption_user_set_key", subtitle.language)
     }
 
     @OptIn(UnstableApi::class)
@@ -415,6 +404,9 @@ class AndroidMediaController(
             .setTrackTypeDisabled(C.TRACK_TYPE_TEXT, true)
             .build()
         mediaController.trackSelectionParameters = params
+
+        // Clear user preference
+        SharedContext.settingsManager.remove("caption_user_set_key")
     }
 
     override fun stopService() {

android/src/main/kotlin/project/pipepipe/app/service/PlaybackService.kt

@@ -172,6 +172,16 @@ class PlaybackService : MediaLibraryService() {
                 skipSilenceEnabled = SharedContext.settingsManager.getBoolean("playback_skip_silence_key", false)
                 // Restore saved playback speed and pitch
                 playbackParameters = PlaybackParameters(savedSpeed, savedPitch)
+
+                // Apply saved caption preference
+                val savedLanguage = SharedContext.settingsManager.getString("caption_user_set_key", "")
+                if (savedLanguage.isNotEmpty()) {
+                    trackSelectionParameters = trackSelectionParameters.buildUpon()
+                        .setPreferredTextLanguages(savedLanguage)
+                        .setTrackTypeDisabled(C.TRACK_TYPE_TEXT, false)
+                        .build()
+                }
+
                 addListener(createPlayerListener())
             }