Advance position across transition for readahead renderer error

If a renderer error happens while processing readahead data for the
next item in the playlist, we currently throw the error immediately
and only set the item id in the error details. This makes it harder
to associate the error to the right item. For example, the user
facing UI is likely not updated to show the failing item when the
error is reported.

This can be improved slighly by force setting the position to the
failing item. The playback still fails immediately, but this can't
be avoided because the renderer itself went into an error state.

PiperOrigin-RevId: 507808635

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

@@ -591,6 +591,23 @@ import java.util.concurrent.atomic.AtomicBoolean;
           e = pendingRecoverableRendererError;
           e = pendingRecoverableRendererError;
         }
         }
         Log.e(TAG, "Playback error", e);
         Log.e(TAG, "Playback error", e);
+        if (e.type == ExoPlaybackException.TYPE_RENDERER
+            && queue.getPlayingPeriod() != queue.getReadingPeriod()) {
+          // We encountered a renderer error while reading ahead. Force-update the playback position
+          // to the failing item to ensure the user-visible error is reported after the transition.
+          while (queue.getPlayingPeriod() != queue.getReadingPeriod()) {
+            queue.advancePlayingPeriod();
+          }
+          MediaPeriodHolder newPlayingPeriodHolder = checkNotNull(queue.getPlayingPeriod());
+          playbackInfo =
+              handlePositionDiscontinuity(
+                  newPlayingPeriodHolder.info.id,
+                  newPlayingPeriodHolder.info.startPositionUs,
+                  newPlayingPeriodHolder.info.requestedContentPositionUs,
+                  /* discontinuityStartPositionUs= */ newPlayingPeriodHolder.info.startPositionUs,
+                  /* reportDiscontinuity= */ true,
+                  Player.DISCONTINUITY_REASON_AUTO_TRANSITION);
+        }
         stopInternal(/* forceResetRenderers= */ true, /* acknowledgeStop= */ false);
         stopInternal(/* forceResetRenderers= */ true, /* acknowledgeStop= */ false);
         playbackInfo = playbackInfo.copyWithPlaybackError(e);
         playbackInfo = playbackInfo.copyWithPlaybackError(e);
       }
       }