feat: implemented streaming buffering strategy

app/src/main/java/com/cappielloantonio/tempo/util/Preferences.kt

@@ -42,6 +42,7 @@ object Preferences {
     private const val SHARE = "share"
     private const val SCROBBLING = "scrobbling"
     private const val ESTIMATE_CONTENT_LENGTH = "estimate_content_length"
+    private const val BUFFERING_STRATEGY = "buffering_strategy"
 
     @JvmStatic
     fun getServer(): String? {
@@ -331,4 +332,10 @@ object Preferences {
     fun askForEstimateContentLength(): Boolean {
         return App.getInstance().preferences.getBoolean(ESTIMATE_CONTENT_LENGTH, false)
     }
+
+    @JvmStatic
+    fun getBufferingStrategy(): Double {
+        return App.getInstance().preferences.getString(BUFFERING_STRATEGY, "1")!!.toDouble()
+    }
+
 }

app/src/main/res/values/arrays.xml

@@ -211,4 +211,17 @@
         <item>2</item>
         <item>3</item>
     </string-array>
+
+    <string-array name="buffering_strategy_titles">
+        <item>Minimum</item>
+        <item>Moderate</item>
+        <item>Aggressive</item>
+        <item>Extreme</item>
+    </string-array>
+    <string-array name="buffering_strategy_values">
+        <item>.1</item>
+        <item>1</item>
+        <item>2</item>
+        <item>4</item>
+    </string-array>
 </resources>

app/src/main/res/values/strings.xml

@@ -236,6 +236,8 @@
     <string name="settings_audio_transcode_priority_summary">If enabled, Tempo will not force stream the track with the transcode settings below.</string>
     <string name="settings_audio_transcode_priority_title">Prioritize server transcode settings</string>
     <string name="settings_audio_transcode_priority_toast">Priority on transcoding of track given to server</string>
+    <string name="settings_buffering_strategy">Buffering strategy</string>
+    <string name="settings_buffering_strategy_summary">For the change to take effect you must manually restart the app.</string>
     <string name="settings_covers_cache">Size of artwork cache</string>
     <string name="settings_data_saving_mode_summary">In order to reduce data consumption, avoid downloading covers.</string>
     <string name="settings_data_saving_mode_title">Limit mobile data usage</string>

app/src/main/res/xml/global_preferences.xml

@@ -102,6 +102,16 @@
             android:summary="@string/settings_sync_starred_tracks_for_offline_use_summary"
             android:key="sync_starred_tracks_for_offline_use" />
 
+        <ListPreference
+            app:defaultValue="1"
+            app:dialogTitle="@string/settings_buffering_strategy"
+            app:entries="@array/buffering_strategy_titles"
+            app:entryValues="@array/buffering_strategy_values"
+            app:key="buffering_strategy"
+            app:title="@string/settings_buffering_strategy"
+            app:summary="@string/settings_buffering_strategy_summary"
+            app:useSimpleSummaryProvider="false" />
+
         <Preference
             android:key="download_storage"
             app:title="@string/settings_download_storage_title" />

app/src/tempo/java/com/cappielloantonio/tempo/service/MediaService.kt

@@ -19,6 +19,7 @@ import com.cappielloantonio.tempo.R
 import com.cappielloantonio.tempo.ui.activity.MainActivity
 import com.cappielloantonio.tempo.util.Constants
 import com.cappielloantonio.tempo.util.DownloadUtil
+import com.cappielloantonio.tempo.util.Preferences
 import com.cappielloantonio.tempo.util.ReplayGainUtil
 import com.google.android.gms.cast.framework.CastContext
 import com.google.android.gms.common.ConnectionResult
@@ -208,7 +209,7 @@ class MediaService : MediaLibraryService(), SessionAvailabilityListener {
             .setAudioAttributes(AudioAttributes.DEFAULT, true)
             .setHandleAudioBecomingNoisy(true)
             .setWakeMode(C.WAKE_MODE_NETWORK)
-            // .setLoadControl(initializeLoadControl())
+            .setLoadControl(initializeLoadControl())
             .build()
     }
 
@@ -296,8 +297,8 @@ class MediaService : MediaLibraryService(), SessionAvailabilityListener {
     private fun initializeLoadControl(): DefaultLoadControl {
         return DefaultLoadControl.Builder()
             .setBufferDurationsMs(
-                60_000,
+                (DefaultLoadControl.DEFAULT_MIN_BUFFER_MS * Preferences.getBufferingStrategy()).toInt(),
-                120_000,
+                (DefaultLoadControl.DEFAULT_MAX_BUFFER_MS * Preferences.getBufferingStrategy()).toInt(),
                 DefaultLoadControl.DEFAULT_BUFFER_FOR_PLAYBACK_MS,
                 DefaultLoadControl.DEFAULT_BUFFER_FOR_PLAYBACK_AFTER_REBUFFER_MS
             )