Plumb PlayerId to renderers.

We can rename the existing setIndex method to a more generic init
as this method is only called by EPII and implemented by BaseRenderer
anyway.

PiperOrigin-RevId: 408616055

library/core/src/main/java/com/google/android/exoplayer2/BaseRenderer.java

@@ -15,9 +15,11 @@
  */
 package com.google.android.exoplayer2;
 
+import static com.google.android.exoplayer2.util.Assertions.checkNotNull;
 import static java.lang.Math.max;
 
 import androidx.annotation.Nullable;
+import com.google.android.exoplayer2.analytics.PlayerId;
 import com.google.android.exoplayer2.decoder.DecoderInputBuffer;
 import com.google.android.exoplayer2.decoder.DecoderInputBuffer.InsufficientCapacityException;
 import com.google.android.exoplayer2.source.SampleStream;
@@ -26,6 +28,7 @@ import com.google.android.exoplayer2.source.SampleStream.ReadFlags;
 import com.google.android.exoplayer2.util.Assertions;
 import com.google.android.exoplayer2.util.MediaClock;
 import java.io.IOException;
+import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
 
 /** An abstract base class suitable for most {@link Renderer} implementations. */
 public abstract class BaseRenderer implements Renderer, RendererCapabilities {
@@ -35,6 +38,7 @@ public abstract class BaseRenderer implements Renderer, RendererCapabilities {
 
   @Nullable private RendererConfiguration configuration;
   private int index;
+  private @MonotonicNonNull PlayerId playerId;
   private int state;
   @Nullable private SampleStream stream;
   @Nullable private Format[] streamFormats;
@@ -65,8 +69,9 @@ public abstract class BaseRenderer implements Renderer, RendererCapabilities {
   }
 
   @Override
-  public final void setIndex(int index) {
+  public final void init(int index, PlayerId playerId) {
     this.index = index;
+    this.playerId = playerId;
   }
 
   @Override
@@ -328,11 +333,24 @@ public abstract class BaseRenderer implements Renderer, RendererCapabilities {
     return Assertions.checkNotNull(configuration);
   }
 
-  /** Returns the index of the renderer within the player. */
+  /**
+   * Returns the index of the renderer within the player.
+   *
+   * <p>Must only be used after the renderer has been initialized by the player.
+   */
   protected final int getIndex() {
     return index;
   }
 
+  /**
+   * Returns the {@link PlayerId} of the player using this renderer.
+   *
+   * <p>Must only be used after the renderer has been initialized by the player.
+   */
+  protected final PlayerId getPlayerId() {
+    return checkNotNull(playerId);
+  }
+
   /**
    * Creates an {@link ExoPlaybackException} of type {@link ExoPlaybackException#TYPE_RENDERER} for
    * this renderer.

library/core/src/main/java/com/google/android/exoplayer2/ExoPlayerImpl.java

@@ -22,6 +22,7 @@ import static java.lang.Math.max;
 import static java.lang.Math.min;
 
 import android.annotation.SuppressLint;
+import android.media.metrics.LogSessionId;
 import android.os.Handler;
 import android.os.Looper;
 import android.util.Pair;
@@ -30,9 +31,11 @@ import android.view.SurfaceHolder;
 import android.view.SurfaceView;
 import android.view.TextureView;
 import androidx.annotation.Nullable;
+import androidx.annotation.RequiresApi;
 import com.google.android.exoplayer2.ExoPlayer.AudioOffloadListener;
 import com.google.android.exoplayer2.PlayerMessage.Target;
 import com.google.android.exoplayer2.analytics.AnalyticsCollector;
+import com.google.android.exoplayer2.analytics.PlayerId;
 import com.google.android.exoplayer2.audio.AudioAttributes;
 import com.google.android.exoplayer2.metadata.Metadata;
 import com.google.android.exoplayer2.source.MediaSource;
@@ -246,6 +249,7 @@ import java.util.concurrent.CopyOnWriteArraySet;
       addListener(analyticsCollector);
       bandwidthMeter.addEventListener(new Handler(applicationLooper), analyticsCollector);
     }
+    PlayerId playerId = Util.SDK_INT < 31 ? new PlayerId() : Api31.createPlayerId();
     internalPlayer =
         new ExoPlayerImplInternal(
             renderers,
@@ -262,7 +266,8 @@ import java.util.concurrent.CopyOnWriteArraySet;
             pauseAtEndOfMediaItems,
             applicationLooper,
             clock,
-            playbackInfoUpdateListener);
+            playbackInfoUpdateListener,
+            playerId);
   }
 
   /**
@@ -1856,4 +1861,14 @@ import java.util.concurrent.CopyOnWriteArraySet;
       return timeline;
     }
   }
+
+  @RequiresApi(31)
+  private static final class Api31 {
+    private Api31() {}
+
+    public static PlayerId createPlayerId() {
+      // TODO: Create a MediaMetricsListener and obtain LogSessionId from it.
+      return new PlayerId(LogSessionId.LOG_SESSION_ID_NONE);
+    }
+  }
 }

library/core/src/main/java/com/google/android/exoplayer2/ExoPlayerImplInternal.java

@@ -35,6 +35,7 @@ import com.google.android.exoplayer2.Player.PlayWhenReadyChangeReason;
 import com.google.android.exoplayer2.Player.PlaybackSuppressionReason;
 import com.google.android.exoplayer2.Player.RepeatMode;
 import com.google.android.exoplayer2.analytics.AnalyticsCollector;
+import com.google.android.exoplayer2.analytics.PlayerId;
 import com.google.android.exoplayer2.drm.DrmSession;
 import com.google.android.exoplayer2.metadata.Metadata;
 import com.google.android.exoplayer2.source.BehindLiveWindowException;
@@ -229,7 +230,8 @@ import java.util.concurrent.atomic.AtomicBoolean;
       boolean pauseAtEndOfWindow,
       Looper applicationLooper,
       Clock clock,
-      PlaybackInfoUpdateListener playbackInfoUpdateListener) {
+      PlaybackInfoUpdateListener playbackInfoUpdateListener,
+      PlayerId playerId) {
     this.playbackInfoUpdateListener = playbackInfoUpdateListener;
     this.renderers = renderers;
     this.trackSelector = trackSelector;
@@ -252,7 +254,7 @@ import java.util.concurrent.atomic.AtomicBoolean;
     playbackInfoUpdate = new PlaybackInfoUpdate(playbackInfo);
     rendererCapabilities = new RendererCapabilities[renderers.length];
     for (int i = 0; i < renderers.length; i++) {
-      renderers[i].setIndex(i);
+      renderers[i].init(/* index= */ i, playerId);
       rendererCapabilities[i] = renderers[i].getCapabilities();
     }
     mediaClock = new DefaultMediaClock(this, clock);

library/core/src/main/java/com/google/android/exoplayer2/NoSampleRenderer.java

@@ -16,6 +16,7 @@
 package com.google.android.exoplayer2;
 
 import androidx.annotation.Nullable;
+import com.google.android.exoplayer2.analytics.PlayerId;
 import com.google.android.exoplayer2.source.SampleStream;
 import com.google.android.exoplayer2.util.Assertions;
 import com.google.android.exoplayer2.util.MediaClock;
@@ -45,7 +46,7 @@ public abstract class NoSampleRenderer implements Renderer, RendererCapabilities
   }
 
   @Override
-  public final void setIndex(int index) {
+  public final void init(int index, PlayerId playerId) {
     this.index = index;
   }
 

library/core/src/main/java/com/google/android/exoplayer2/Renderer.java

@@ -20,6 +20,7 @@ import android.view.Surface;
 import androidx.annotation.IntDef;
 import androidx.annotation.Nullable;
 import com.google.android.exoplayer2.PlayerMessage.Target;
+import com.google.android.exoplayer2.analytics.PlayerId;
 import com.google.android.exoplayer2.audio.AudioAttributes;
 import com.google.android.exoplayer2.audio.AuxEffectInfo;
 import com.google.android.exoplayer2.source.SampleStream;
@@ -248,11 +249,12 @@ public interface Renderer extends PlayerMessage.Target {
   RendererCapabilities getCapabilities();
 
   /**
-   * Sets the index of this renderer within the player.
+   * Initializes the renderer for playback with a player.
    *
-   * @param index The renderer index.
+   * @param index The renderer index within the player.
+   * @param playerId The {@link PlayerId} of the player.
    */
-  void setIndex(int index);
+  void init(int index, PlayerId playerId);
 
   /**
    * If the renderer advances its own playback position then this method returns a corresponding