Add experimental settings & video tunneling (#1624)

## Description
This PR introduces the concept of "experimental" settings or features.
These may cause instabilities or may need further testing. They may be
changed or removed any time. Also, the developers won't provide lots of
support for them.

The goal is expose some specialized settings that might only apply to a
small subset of users or test out tweaks to playback.

The first experimental feature is a toggle to enable [video
tunneling](https://developer.android.com/media/media3/exoplayer/track-selection#tunneling).

### Related issues
Related to #1283

### Testing
Emulator

## Screenshots
N/A

## AI or LLM usage
None

app/src/main/java/com/github/damontecres/wholphin/services/PlayerFactory.kt

@@ -26,10 +26,11 @@ import androidx.media3.exoplayer.video.VideoRendererEventListener
 import androidx.media3.extractor.DefaultExtractorsFactory
 import androidx.media3.session.MediaSession
 import com.github.damontecres.wholphin.mpv.MpvPlayer
+import com.github.damontecres.wholphin.preferences.AppPreferences
 import com.github.damontecres.wholphin.preferences.AssPlaybackMode
 import com.github.damontecres.wholphin.preferences.MediaExtensionStatus
-import com.github.damontecres.wholphin.preferences.PlaybackPreferences
 import com.github.damontecres.wholphin.preferences.PlayerBackend
+import com.github.damontecres.wholphin.preferences.get
 import com.github.damontecres.wholphin.services.hilt.AuthOkHttpClient
 import com.github.damontecres.wholphin.util.WholphinDispatchers
 import dagger.hilt.android.qualifiers.ApplicationContext
@@ -61,8 +62,9 @@ class PlayerFactory
 
         suspend fun createVideoPlayer(
             backend: PlayerBackend,
-            prefs: PlaybackPreferences,
+            appPreferences: AppPreferences,
         ): PlayerCreation {
+            val prefs = appPreferences.playbackPreferences
             withContext(WholphinDispatchers.Main) {
                 if (currentPlayer?.isReleased == false) {
                     Timber.w("Player was not released before trying to create a new one!")
@@ -105,6 +107,7 @@ class PlayerFactory
                             WholphinRenderersFactory(context, decodeAv1)
                                 .setEnableDecoderFallback(true)
                                 .setExtensionRendererMode(rendererMode)
+
                         val mediaSourceFactory =
                             if (useLibAss) {
                                 val renderType =
@@ -129,7 +132,9 @@ class PlayerFactory
                                     extractorsFactory,
                                 )
                             }
-                        val trackSelector = createTrackSelector()
+                        val tunneling =
+                            appPreferences.experimentalPreferences.get { videoTunnelingEnabled }
+                        val trackSelector = createTrackSelector(tunneling)
 
                         ExoPlayer
                             .Builder(context)
@@ -200,11 +205,13 @@ class PlayerFactory
                 .setConstantBitrateSeekingEnabled(true)
                 .setConstantBitrateSeekingAlwaysEnabled(true)
 
-        private fun createTrackSelector() =
+        private fun createTrackSelector(tunneling: Boolean? = null) =
             DefaultTrackSelector(context).apply {
                 setParameters(
                     buildUponParameters()
-                        .setAudioOffloadPreferences(
+                        .apply {
+                            tunneling?.let { setTunnelingEnabled(tunneling) }
+                        }.setAudioOffloadPreferences(
                             AudioOffloadPreferences
                                 .Builder()
                                 .setAudioOffloadMode(AudioOffloadPreferences.AUDIO_OFFLOAD_MODE_ENABLED)