Taking into consideration the media's duration when updating the time bar

library/ui/src/main/java/com/google/android/exoplayer2/ui/DefaultTimeBar.java

@@ -219,6 +219,8 @@ public class DefaultTimeBar extends View implements TimeBar {
   private @Nullable long[] adGroupTimesMs;
   private @Nullable boolean[] playedAdGroups;
 
+  private int densityDpi;
+
   /** Creates a new time bar. */
   // Suppress warnings due to usage of View methods in the constructor.
   @SuppressWarnings("nullness:method.invocation.invalid")
@@ -242,6 +244,7 @@ public class DefaultTimeBar extends View implements TimeBar {
     // Calculate the dimensions and paints for drawn elements.
     Resources res = context.getResources();
     DisplayMetrics displayMetrics = res.getDisplayMetrics();
+    densityDpi = displayMetrics.densityDpi;
     fineScrubYThreshold = dpToPx(displayMetrics, FINE_SCRUB_Y_THRESHOLD_DP);
     int defaultBarHeight = dpToPx(displayMetrics, DEFAULT_BAR_HEIGHT_DP);
     int defaultTouchTargetHeight = dpToPx(displayMetrics, DEFAULT_TOUCH_TARGET_HEIGHT_DP);
@@ -447,6 +450,11 @@ public class DefaultTimeBar extends View implements TimeBar {
     update();
   }
 
+  @Override
+  public int getTimeBarWidth() {
+    return pxToDp(densityDpi, getWidth());
+  }
+
   // View methods.
 
   @Override
@@ -835,4 +843,8 @@ public class DefaultTimeBar extends View implements TimeBar {
   private static int dpToPx(DisplayMetrics displayMetrics, int dps) {
     return (int) (dps * displayMetrics.density + 0.5f);
   }
+
+  private static int pxToDp(int densityDpi, int px) {
+    return (int) (px / ((float) densityDpi / DisplayMetrics.DENSITY_DEFAULT));
+  }
 }

library/ui/src/main/java/com/google/android/exoplayer2/ui/PlayerControlView.java

@@ -196,6 +196,9 @@ public class PlayerControlView extends FrameLayout {
   public static final int MAX_WINDOWS_FOR_MULTI_WINDOW_TIME_BAR = 100;
 
   private static final long MAX_POSITION_FOR_SEEK_TO_PREVIOUS = 3000;
+  private static final int DEFAULT_UPDATE_DP = 5;
+  private static final long MIN_UPDATE_FREQUENCY_MS = 50;
+  private static final long MAX_UPDATE_FREQUENCY_MS = 1000;
 
   private final ComponentListener componentListener;
   private final View previousButton;
@@ -835,13 +838,21 @@ public class PlayerControlView extends FrameLayout {
         if (playbackSpeed <= 0.1f) {
           delayMs = 1000;
         } else if (playbackSpeed <= 5f) {
-          long mediaTimeUpdatePeriodMs = 1000 / Math.max(1, Math.round(1 / playbackSpeed));
+          /*long mediaTimeUpdatePeriodMs = 1000 / Math.max(1, Math.round(1 / playbackSpeed));
           long mediaTimeDelayMs = mediaTimeUpdatePeriodMs - (position % mediaTimeUpdatePeriodMs);
           if (mediaTimeDelayMs < (mediaTimeUpdatePeriodMs / 5)) {
             mediaTimeDelayMs += mediaTimeUpdatePeriodMs;
+          }*/
+          int timeBarWidth = timeBar.getTimeBarWidth();
+          int numberOfUpdates = timeBarWidth / DEFAULT_UPDATE_DP;
+          long mediaTimeDelayMs = duration / numberOfUpdates;
+
+          if (mediaTimeDelayMs < MIN_UPDATE_FREQUENCY_MS) {
+            mediaTimeDelayMs = MIN_UPDATE_FREQUENCY_MS;
+          } else if (mediaTimeDelayMs >= MAX_UPDATE_FREQUENCY_MS) {
+            mediaTimeDelayMs = MAX_UPDATE_FREQUENCY_MS;
           }
-          delayMs =
-              playbackSpeed == 1 ? mediaTimeDelayMs : (long) (mediaTimeDelayMs / playbackSpeed);
+          delayMs = playbackSpeed == 1 ? mediaTimeDelayMs : (long) (mediaTimeDelayMs / playbackSpeed);
         } else {
           delayMs = 200;
         }

library/ui/src/main/java/com/google/android/exoplayer2/ui/TimeBar.java

@@ -97,6 +97,13 @@ public interface TimeBar {
   void setAdGroupTimesMs(@Nullable long[] adGroupTimesMs, @Nullable boolean[] playedAdGroups,
       int adGroupCount);
 
+    /**
+     * Get width of time bar in dps
+     *
+     * @return Width of time bar in dps
+     */
+    int getTimeBarWidth();
+
   /**
    * Listener for scrubbing events.
    */