display correct playback speed for media

app/src/main/java/io/lbry/browser/ui/findcontent/FileViewFragment.java

@@ -728,6 +728,7 @@ public class FileViewFragment extends BaseFragment implements
                 }
             }
 
+            updatePlaybackSpeedView(root);
             loadAndScheduleDurations();
         }
 
@@ -1184,6 +1185,16 @@ public class FileViewFragment extends BaseFragment implements
         commentsList.setLayoutManager(commentsListLLM);
     }
 
+    private void updatePlaybackSpeedView(View root) {
+        if (root != null) {
+            PlayerView playerView = root.findViewById(R.id.file_view_exoplayer_view);
+            TextView textPlaybackSpeed = playerView.findViewById(R.id.player_playback_speed_label);
+            textPlaybackSpeed.setText(MainActivity.appPlayer != null && MainActivity.appPlayer.getPlaybackParameters() != null ?
+                    Helper.getDisplayValueForPlaybackSpeed((double) MainActivity.appPlayer.getPlaybackParameters().speed) :
+                    DEFAULT_PLAYBACK_SPEED);
+        }
+    }
+
     private void deleteCurrentClaim() {
         if (claim != null) {
             Helper.setViewVisibility(layoutDisplayArea, View.INVISIBLE);

app/src/main/java/io/lbry/browser/utils/Helper.java

@@ -103,6 +103,11 @@ public final class Helper {
         }
     }
 
+    public static String getDisplayValueForPlaybackSpeed(Double speed) {
+        DecimalFormat formatter = new DecimalFormat("0.##");
+        return String.format("%sx", formatter.format(speed));
+    }
+
     public static String capitalize(String value) {
         StringBuilder sb = new StringBuilder();
         boolean capitalizeNext = true;