buffering goal

app/src/main/java/com/github/libretube/adapters/ChaptersAdapter.kt

@@ -32,7 +32,7 @@ class ChaptersAdapter(
         chapterTitle.text = chapter.title
 
         holder.v.setOnClickListener {
-            val chapterStart = chapter.start!!.toLong() * 1000 // multiply by thousand for ms -> s
+            val chapterStart = chapter.start!!.toLong() * 1000 // s -> ms
             exoPlayer.seekTo(chapterStart)
         }
     }

app/src/main/java/com/github/libretube/fragments/PlayerFragment.kt

@@ -828,6 +828,10 @@ class PlayerFragment : Fragment() {
     }
 
     private fun createExoPlayer(view: View) {
+        val sharedPreferences = PreferenceManager.getDefaultSharedPreferences(requireContext())
+        val playbackSpeed = sharedPreferences.getString("playback_speed", "1F")?.toFloat()
+        val bufferingGoal = sharedPreferences.getString("buffering_goal", "50")?.toInt()!!
+
         val cronetEngine: CronetEngine = CronetHelper.getCronetEngine()
         val cronetDataSourceFactory: CronetDataSource.Factory =
             CronetDataSource.Factory(cronetEngine, Executors.newCachedThreadPool())
@@ -847,6 +851,12 @@ class PlayerFragment : Fragment() {
         val loadControl = DefaultLoadControl.Builder()
             // cache the last three minutes
             .setBackBuffer(1000 * 60 * 3, true)
+            .setBufferDurationsMs(
+                DefaultLoadControl.DEFAULT_MIN_BUFFER_MS,
+                bufferingGoal * 1000, // buffering goal, s -> ms
+                DefaultLoadControl.DEFAULT_BUFFER_FOR_PLAYBACK_MS,
+                DefaultLoadControl.DEFAULT_BUFFER_FOR_PLAYBACK_AFTER_REBUFFER_MS
+            )
             .build()
 
         exoPlayer = ExoPlayer.Builder(view.context)
@@ -858,8 +868,6 @@ class PlayerFragment : Fragment() {
 
         exoPlayer.setAudioAttributes(audioAttributes, true)
 
-        val sharedPreferences = PreferenceManager.getDefaultSharedPreferences(requireContext())
-        val playbackSpeed = sharedPreferences.getString("playback_speed", "1F")?.toFloat()
         exoPlayer.setPlaybackSpeed(playbackSpeed!!)
     }
 

app/src/main/res/drawable/ic_timelapse.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:tint="?android:attr/colorControlNormal"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@android:color/black"
+        android:pathData="M16.24,7.76C15.07,6.59 13.54,6 12,6v6l-4.24,4.24c2.34,2.34 6.14,2.34 8.49,0 2.34,-2.34 2.34,-6.14 -0.01,-8.48zM12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zM12,20c-4.42,0 -8,-3.58 -8,-8s3.58,-8 8,-8 8,3.58 8,8 -3.58,8 -8,8z" />
+</vector>

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

@@ -659,4 +659,12 @@
         <item>sdcard</item>
     </string-array>
 
+    <string-array name="bufferingGoal">
+        <item>50</item>
+        <item>100</item>
+        <item>200</item>
+        <item>300</item>
+        <item>450</item>
+    </string-array>
+
 </resources>

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

@@ -181,4 +181,6 @@
     <string name="related_streams_summary">Show related streams to videos.</string>
     <string name="show_chapters">Show chapters</string>
     <string name="hide_chapters">Hide chapters</string>
+    <string name="buffering_goal">Buffering goal</string>
+    <string name="buffering_goal_summary">The amount of seconds videos get preloaded at maximum.</string>
 </resources>

app/src/main/res/xml/advanced_settings.xml

@@ -22,6 +22,15 @@
             app:title="@string/playback_speed"
             app:useSimpleSummaryProvider="true" />
 
+        <ListPreference
+            android:icon="@drawable/ic_timelapse"
+            app:defaultValue="50"
+            app:entries="@array/bufferingGoal"
+            app:entryValues="@array/bufferingGoal"
+            app:key="buffering_goal"
+            app:title="@string/buffering_goal"
+            app:summary="@string/buffering_goal_summary" />
+
     </PreferenceCategory>
 
     <PreferenceCategory app:title="@string/downloads">