Avoid bundling PlayerInfo for in-process calls

PlayerInfo bundling is costly and we can add a shortcut for
in-process binder calls where we store the direct object
reference in a live Binder object that can be written to the
Bundle instead of the individual data fields.

#minor-release

PiperOrigin-RevId: 572816784

Author: tonihei

libraries/session/src/main/java/androidx/media3/session/MediaSessionStub.java

@@ -1915,9 +1915,13 @@ public void onPlayerInfoChanged(
       if (controllerInterfaceVersion >= 2) {
         PlayerInfo filteredPlayerInfo =
             playerInfo.filterByAvailableCommands(availableCommands, excludeTimeline, excludeTracks);
+        Bundle playerInfoBundle =
+            iController instanceof MediaControllerStub
+                ? filteredPlayerInfo.toBundleInProcess()
+                : filteredPlayerInfo.toBundle();
         iController.onPlayerInfoChangedWithExclusions(
             sequenceNumber,
-            filteredPlayerInfo.toBundle(),
+            playerInfoBundle,
             new PlayerInfo.BundlingExclusions(bundlingExclusionsTimeline, bundlingExclusionsTracks)
                 .toBundle());
       } else {

libraries/session/src/main/java/androidx/media3/session/PlayerInfo.java

@@ -22,7 +22,9 @@
 import static androidx.media3.common.Player.STATE_IDLE;
 import static androidx.media3.common.Player.TIMELINE_CHANGE_REASON_PLAYLIST_CHANGED;
 
+import android.os.Binder;
 import android.os.Bundle;
+import android.os.IBinder;
 import androidx.annotation.CheckResult;
 import androidx.annotation.FloatRange;
 import androidx.annotation.Nullable;
@@ -44,6 +46,7 @@
 import androidx.media3.common.VideoSize;
 import androidx.media3.common.text.CueGroup;
 import androidx.media3.common.util.Assertions;
+import androidx.media3.common.util.BundleUtil;
 import androidx.media3.common.util.UnstableApi;
 import androidx.media3.common.util.Util;
 import com.google.common.base.Objects;
@@ -824,8 +827,9 @@ private boolean isPlaying(
   private static final String FIELD_TRACK_SELECTION_PARAMETERS = Util.intToStringMaxRadix(29);
   private static final String FIELD_CURRENT_TRACKS = Util.intToStringMaxRadix(30);
   private static final String FIELD_TIMELINE_CHANGE_REASON = Util.intToStringMaxRadix(31);
+  private static final String FIELD_IN_PROCESS_BINDER = Util.intToStringMaxRadix(32);
 
-  // Next field key = 32
+  // Next field key = 33
 
   /**
    * Returns a copy of this player info, filtered by the specified available commands.
@@ -882,6 +886,16 @@ public PlayerInfo filterByAvailableCommands(
     return builder.build();
   }
 
+  /**
+   * Returns a {@link Bundle} that stores a direct object reference to this class for in-process
+   * sharing.
+   */
+  public Bundle toBundleInProcess() {
+    Bundle bundle = new Bundle();
+    BundleUtil.putBinder(bundle, FIELD_IN_PROCESS_BINDER, new InProcessBinder());
+    return bundle;
+  }
+
   @Override
   public Bundle toBundle() {
     Bundle bundle = new Bundle();
@@ -985,6 +999,10 @@ public Bundle toBundle() {
   public static final Creator<PlayerInfo> CREATOR = PlayerInfo::fromBundle;
 
   private static PlayerInfo fromBundle(Bundle bundle) {
+    @Nullable IBinder inProcessBinder = BundleUtil.getBinder(bundle, FIELD_IN_PROCESS_BINDER);
+    if (inProcessBinder instanceof InProcessBinder) {
+      return ((InProcessBinder) inProcessBinder).getPlayerInfo();
+    }
     @Nullable Bundle playerErrorBundle = bundle.getBundle(FIELD_PLAYBACK_ERROR);
     @Nullable
     PlaybackException playerError =
@@ -1115,4 +1133,10 @@ private static PlayerInfo fromBundle(Bundle bundle) {
         currentTracks,
         trackSelectionParameters);
   }
+
+  private final class InProcessBinder extends Binder {
+    public PlayerInfo getPlayerInfo() {
+      return PlayerInfo.this;
+    }
+  }
 }