Only notify rebuffer to if we are actually rebuffering.

Right now we also notify while we are paused although this doesn't classify as a rebuffer.

PiperOrigin-RevId: 342892667

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

@@ -993,8 +993,8 @@ import java.util.concurrent.atomic.AtomicBoolean;
       setState(Player.STATE_BUFFERING);
       setState(Player.STATE_BUFFERING);
       if (isRebuffering) {
       if (isRebuffering) {
         notifyTrackSelectionRebuffer();
         notifyTrackSelectionRebuffer();
+        livePlaybackSpeedControl.notifyRebuffer();
       }
       }
-      livePlaybackSpeedControl.notifyRebuffer();
       stopRenderers();
       stopRenderers();
     }
     }
 
 

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

@@ -44,7 +44,8 @@ public interface LivePlaybackSpeedControl {
    * Notifies the live playback speed control that a rebuffer occurred.
    * Notifies the live playback speed control that a rebuffer occurred.
    *
    *
    * <p>A rebuffer is defined to be caused by buffer depletion rather than a user action. Hence this
    * <p>A rebuffer is defined to be caused by buffer depletion rather than a user action. Hence this
-   * method is not called during initial or when buffering as a result of a seek operation.
+   * method is not called during initial buffering or when buffering as a result of a seek
+   * operation.
    */
    */
   void notifyRebuffer();
   void notifyRebuffer();