Rollback of https://github.com/androidx/media/commit/99d2b11329481609aa83512b92bbad98f29b405a

*** Original commit ***

Rollback of https://github.com/androidx/media/commit/caf62842c4897dc84ba8dd83cc9cf7de7fa3279b

*** Original commit ***

Rollback of https://github.com/androidx/media/commit/c2cb22a05687d36d842c7049753a7c8ab34d5053

*** Original commit ***

Rollback of https://github.com/androidx/media/commit/1521e50307bb74983ecef1fc2ddf5f996f27468b

*** Original commit ***

PiperOrigin-RevId: 430905772

libraries/exoplayer/src/main/java/androidx/media3/exoplayer/ExoPlayer.java

@@ -470,6 +470,7 @@ public interface ExoPlayer extends Player {
     /* package */ long releaseTimeoutMs;
     /* package */ long detachSurfaceTimeoutMs;
     /* package */ boolean pauseAtEndOfMediaItems;
+    /* package */ boolean usePlatformDiagnostics;
     /* package */ boolean buildCalled;
 
     /**
@@ -510,6 +511,7 @@ public interface ExoPlayer extends Player {
      *   <li>{@code releaseTimeoutMs}: {@link #DEFAULT_RELEASE_TIMEOUT_MS}
      *   <li>{@code detachSurfaceTimeoutMs}: {@link #DEFAULT_DETACH_SURFACE_TIMEOUT_MS}
      *   <li>{@code pauseAtEndOfMediaItems}: {@code false}
+     *   <li>{@code usePlatformDiagnostics}: {@code true}
      *   <li>{@link Clock}: {@link Clock#DEFAULT}
      * </ul>
      *
@@ -659,6 +661,7 @@ public interface ExoPlayer extends Player {
       clock = Clock.DEFAULT;
       releaseTimeoutMs = DEFAULT_RELEASE_TIMEOUT_MS;
       detachSurfaceTimeoutMs = DEFAULT_DETACH_SURFACE_TIMEOUT_MS;
+      usePlatformDiagnostics = true;
     }
 
     /**
@@ -1039,6 +1042,28 @@ public interface ExoPlayer extends Player {
     }
 
     /**
+     * Sets whether the player reports diagnostics data to the Android platform.
+     *
+     * <p>If enabled, the player will use the {@link android.media.metrics.MediaMetricsManager} to
+     * create a {@link android.media.metrics.PlaybackSession} and forward playback events and
+     * performance data to this session. This helps to provide system performance and debugging
+     * information for media playback on the device. This data may also be collected by Google <a
+     * href="https://support.google.com/accounts/answer/6078260">if sharing usage and diagnostics
+     * data is enabled</a> by the user of the device.
+     *
+     * @param usePlatformDiagnostics Whether the player reports diagnostics data to the Android
+     *     platform.
+     * @return This builder.
+     * @throws IllegalStateException If {@link #build()} has already been called.
+     */
+    @UnstableApi
+    public Builder setUsePlatformDiagnostics(boolean usePlatformDiagnostics) {
+      checkState(!buildCalled);
+      this.usePlatformDiagnostics = usePlatformDiagnostics;
+      return this;
+    }
+
+    /**
      * Sets the {@link Clock} that will be used by the player. Should only be set for testing
      * purposes.
      *

libraries/exoplayer/src/main/java/androidx/media3/exoplayer/ExoPlayerImpl.java

@@ -86,6 +86,7 @@ import androidx.media3.exoplayer.PlayerMessage.Target;
 import androidx.media3.exoplayer.Renderer.MessageType;
 import androidx.media3.exoplayer.analytics.AnalyticsCollector;
 import androidx.media3.exoplayer.analytics.AnalyticsListener;
+import androidx.media3.exoplayer.analytics.MediaMetricsListener;
 import androidx.media3.exoplayer.analytics.PlayerId;
 import androidx.media3.exoplayer.audio.AudioRendererEventListener;
 import androidx.media3.exoplayer.metadata.MetadataOutput;
@@ -317,7 +318,11 @@ import java.util.concurrent.TimeoutException;
               playbackInfoUpdateHandler.post(() -> handlePlaybackInfo(playbackInfoUpdate));
       playbackInfo = PlaybackInfo.createDummy(emptyTrackSelectorResult);
       analyticsCollector.setPlayer(this.wrappingPlayer, applicationLooper);
-      PlayerId playerId = Util.SDK_INT < 31 ? new PlayerId() : Api31.createPlayerId();
+      PlayerId playerId =
+          Util.SDK_INT < 31
+              ? new PlayerId()
+              : Api31.registerMediaMetricsListener(
+                  applicationContext, /* player= */ this, builder.usePlatformDiagnostics);
       internalPlayer =
           new ExoPlayerImplInternal(
               renderers,
@@ -3074,9 +3079,17 @@ import java.util.concurrent.TimeoutException;
     private Api31() {}
 
     @DoNotInline
-    public static PlayerId createPlayerId() {
-      // TODO: Create a MediaMetricsListener and obtain LogSessionId from it.
-      return new PlayerId(LogSessionId.LOG_SESSION_ID_NONE);
+    public static PlayerId registerMediaMetricsListener(
+        Context context, ExoPlayerImpl player, boolean usePlatformDiagnostics) {
+      @Nullable MediaMetricsListener listener = MediaMetricsListener.create(context);
+      if (listener == null) {
+        Log.w(TAG, "MediaMetricsService unavailable.");
+        return new PlayerId(LogSessionId.LOG_SESSION_ID_NONE);
+      }
+      if (usePlatformDiagnostics) {
+        player.addAnalyticsListener(listener);
+      }
+      return new PlayerId(listener.getLogSessionId());
     }
   }
 }