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diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/PlaybackInfo.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/PlaybackInfo.java
new file mode 100644
index 0000000000..c743e35661
--- /dev/null
+++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/PlaybackInfo.java
@@ -0,0 +1,358 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.mozilla.thirdparty.com.google.android.exoplayer2;
+
+import androidx.annotation.CheckResult;
+import androidx.annotation.Nullable;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.source.MediaSource.MediaPeriodId;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.source.TrackGroupArray;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.trackselection.TrackSelectorResult;
+
+/**
+ * Information about an ongoing playback.
+ */
+/* package */ final class PlaybackInfo {
+
+  /**
+   * Dummy media period id used while the timeline is empty and no period id is specified. This id
+   * is used when playback infos are created with {@link #createDummy(long, TrackSelectorResult)}.
+   */
+  private static final MediaPeriodId DUMMY_MEDIA_PERIOD_ID =
+      new MediaPeriodId(/* periodUid= */ new Object());
+
+  /** The current {@link Timeline}. */
+  public final Timeline timeline;
+  /** The {@link MediaPeriodId} of the currently playing media period in the {@link #timeline}. */
+  public final MediaPeriodId periodId;
+  /**
+   * The start position at which playback started in {@link #periodId} relative to the start of the
+   * associated period in the {@link #timeline}, in microseconds. Note that this value changes for
+   * each position discontinuity.
+   */
+  public final long startPositionUs;
+  /**
+   * If {@link #periodId} refers to an ad, the position of the suspended content relative to the
+   * start of the associated period in the {@link #timeline}, in microseconds. {@link C#TIME_UNSET}
+   * if {@link #periodId} does not refer to an ad or if the suspended content should be played from
+   * its default position.
+   */
+  public final long contentPositionUs;
+  /** The current playback state. One of the {@link Player}.STATE_ constants. */
+  @Player.State public final int playbackState;
+  /** The current playback error, or null if this is not an error state. */
+  @Nullable public final ExoPlaybackException playbackError;
+  /** Whether the player is currently loading. */
+  public final boolean isLoading;
+  /** The currently available track groups. */
+  public final TrackGroupArray trackGroups;
+  /** The result of the current track selection. */
+  public final TrackSelectorResult trackSelectorResult;
+  /** The {@link MediaPeriodId} of the currently loading media period in the {@link #timeline}. */
+  public final MediaPeriodId loadingMediaPeriodId;
+
+  /**
+   * Position up to which media is buffered in {@link #loadingMediaPeriodId) relative to the start
+   * of the associated period in the {@link #timeline}, in microseconds.
+   */
+  public volatile long bufferedPositionUs;
+  /**
+   * Total duration of buffered media from {@link #positionUs} to {@link #bufferedPositionUs}
+   * including all ads.
+   */
+  public volatile long totalBufferedDurationUs;
+  /**
+   * Current playback position in {@link #periodId} relative to the start of the associated period
+   * in the {@link #timeline}, in microseconds.
+   */
+  public volatile long positionUs;
+
+  /**
+   * Creates empty dummy playback info which can be used for masking as long as no real playback
+   * info is available.
+   *
+   * @param startPositionUs The start position at which playback should start, in microseconds.
+   * @param emptyTrackSelectorResult An empty track selector result with null entries for each
+   *     renderer.
+   * @return A dummy playback info.
+   */
+  public static PlaybackInfo createDummy(
+      long startPositionUs, TrackSelectorResult emptyTrackSelectorResult) {
+    return new PlaybackInfo(
+        Timeline.EMPTY,
+        DUMMY_MEDIA_PERIOD_ID,
+        startPositionUs,
+        /* contentPositionUs= */ C.TIME_UNSET,
+        Player.STATE_IDLE,
+        /* playbackError= */ null,
+        /* isLoading= */ false,
+        TrackGroupArray.EMPTY,
+        emptyTrackSelectorResult,
+        DUMMY_MEDIA_PERIOD_ID,
+        startPositionUs,
+        /* totalBufferedDurationUs= */ 0,
+        startPositionUs);
+  }
+
+  /**
+   * Create playback info.
+   *
+   * @param timeline See {@link #timeline}.
+   * @param periodId See {@link #periodId}.
+   * @param startPositionUs See {@link #startPositionUs}.
+   * @param contentPositionUs See {@link #contentPositionUs}.
+   * @param playbackState See {@link #playbackState}.
+   * @param isLoading See {@link #isLoading}.
+   * @param trackGroups See {@link #trackGroups}.
+   * @param trackSelectorResult See {@link #trackSelectorResult}.
+   * @param loadingMediaPeriodId See {@link #loadingMediaPeriodId}.
+   * @param bufferedPositionUs See {@link #bufferedPositionUs}.
+   * @param totalBufferedDurationUs See {@link #totalBufferedDurationUs}.
+   * @param positionUs See {@link #positionUs}.
+   */
+  public PlaybackInfo(
+      Timeline timeline,
+      MediaPeriodId periodId,
+      long startPositionUs,
+      long contentPositionUs,
+      @Player.State int playbackState,
+      @Nullable ExoPlaybackException playbackError,
+      boolean isLoading,
+      TrackGroupArray trackGroups,
+      TrackSelectorResult trackSelectorResult,
+      MediaPeriodId loadingMediaPeriodId,
+      long bufferedPositionUs,
+      long totalBufferedDurationUs,
+      long positionUs) {
+    this.timeline = timeline;
+    this.periodId = periodId;
+    this.startPositionUs = startPositionUs;
+    this.contentPositionUs = contentPositionUs;
+    this.playbackState = playbackState;
+    this.playbackError = playbackError;
+    this.isLoading = isLoading;
+    this.trackGroups = trackGroups;
+    this.trackSelectorResult = trackSelectorResult;
+    this.loadingMediaPeriodId = loadingMediaPeriodId;
+    this.bufferedPositionUs = bufferedPositionUs;
+    this.totalBufferedDurationUs = totalBufferedDurationUs;
+    this.positionUs = positionUs;
+  }
+
+  /**
+   * Returns dummy media period id for the first-to-be-played period of the current timeline.
+   *
+   * @param shuffleModeEnabled Whether shuffle mode is enabled.
+   * @param window A writable {@link Timeline.Window}.
+   * @param period A writable {@link Timeline.Period}.
+   * @return A dummy media period id for the first-to-be-played period of the current timeline.
+   */
+  public MediaPeriodId getDummyFirstMediaPeriodId(
+      boolean shuffleModeEnabled, Timeline.Window window, Timeline.Period period) {
+    if (timeline.isEmpty()) {
+      return DUMMY_MEDIA_PERIOD_ID;
+    }
+    int firstWindowIndex = timeline.getFirstWindowIndex(shuffleModeEnabled);
+    int firstPeriodIndex = timeline.getWindow(firstWindowIndex, window).firstPeriodIndex;
+    int currentPeriodIndex = timeline.getIndexOfPeriod(periodId.periodUid);
+    long windowSequenceNumber = C.INDEX_UNSET;
+    if (currentPeriodIndex != C.INDEX_UNSET) {
+      int currentWindowIndex = timeline.getPeriod(currentPeriodIndex, period).windowIndex;
+      if (firstWindowIndex == currentWindowIndex) {
+        // Keep window sequence number if the new position is still in the same window.
+        windowSequenceNumber = periodId.windowSequenceNumber;
+      }
+    }
+    return new MediaPeriodId(timeline.getUidOfPeriod(firstPeriodIndex), windowSequenceNumber);
+  }
+
+  /**
+   * Copies playback info with new playing position.
+   *
+   * @param periodId New playing media period. See {@link #periodId}.
+   * @param positionUs New position. See {@link #positionUs}.
+   * @param contentPositionUs New content position. See {@link #contentPositionUs}. Value is ignored
+   *     if {@code periodId.isAd()} is true.
+   * @param totalBufferedDurationUs New buffered duration. See {@link #totalBufferedDurationUs}.
+   * @return Copied playback info with new playing position.
+   */
+  @CheckResult
+  public PlaybackInfo copyWithNewPosition(
+      MediaPeriodId periodId,
+      long positionUs,
+      long contentPositionUs,
+      long totalBufferedDurationUs) {
+    return new PlaybackInfo(
+        timeline,
+        periodId,
+        positionUs,
+        periodId.isAd() ? contentPositionUs : C.TIME_UNSET,
+        playbackState,
+        playbackError,
+        isLoading,
+        trackGroups,
+        trackSelectorResult,
+        loadingMediaPeriodId,
+        bufferedPositionUs,
+        totalBufferedDurationUs,
+        positionUs);
+  }
+
+  /**
+   * Copies playback info with the new timeline.
+   *
+   * @param timeline New timeline. See {@link #timeline}.
+   * @return Copied playback info with the new timeline.
+   */
+  @CheckResult
+  public PlaybackInfo copyWithTimeline(Timeline timeline) {
+    return new PlaybackInfo(
+        timeline,
+        periodId,
+        startPositionUs,
+        contentPositionUs,
+        playbackState,
+        playbackError,
+        isLoading,
+        trackGroups,
+        trackSelectorResult,
+        loadingMediaPeriodId,
+        bufferedPositionUs,
+        totalBufferedDurationUs,
+        positionUs);
+  }
+
+  /**
+   * Copies playback info with new playback state.
+   *
+   * @param playbackState New playback state. See {@link #playbackState}.
+   * @return Copied playback info with new playback state.
+   */
+  @CheckResult
+  public PlaybackInfo copyWithPlaybackState(int playbackState) {
+    return new PlaybackInfo(
+        timeline,
+        periodId,
+        startPositionUs,
+        contentPositionUs,
+        playbackState,
+        playbackError,
+        isLoading,
+        trackGroups,
+        trackSelectorResult,
+        loadingMediaPeriodId,
+        bufferedPositionUs,
+        totalBufferedDurationUs,
+        positionUs);
+  }
+
+  /**
+   * Copies playback info with a playback error.
+   *
+   * @param playbackError The error. See {@link #playbackError}.
+   * @return Copied playback info with the playback error.
+   */
+  @CheckResult
+  public PlaybackInfo copyWithPlaybackError(@Nullable ExoPlaybackException playbackError) {
+    return new PlaybackInfo(
+        timeline,
+        periodId,
+        startPositionUs,
+        contentPositionUs,
+        playbackState,
+        playbackError,
+        isLoading,
+        trackGroups,
+        trackSelectorResult,
+        loadingMediaPeriodId,
+        bufferedPositionUs,
+        totalBufferedDurationUs,
+        positionUs);
+  }
+
+  /**
+   * Copies playback info with new loading state.
+   *
+   * @param isLoading New loading state. See {@link #isLoading}.
+   * @return Copied playback info with new loading state.
+   */
+  @CheckResult
+  public PlaybackInfo copyWithIsLoading(boolean isLoading) {
+    return new PlaybackInfo(
+        timeline,
+        periodId,
+        startPositionUs,
+        contentPositionUs,
+        playbackState,
+        playbackError,
+        isLoading,
+        trackGroups,
+        trackSelectorResult,
+        loadingMediaPeriodId,
+        bufferedPositionUs,
+        totalBufferedDurationUs,
+        positionUs);
+  }
+
+  /**
+   * Copies playback info with new track information.
+   *
+   * @param trackGroups New track groups. See {@link #trackGroups}.
+   * @param trackSelectorResult New track selector result. See {@link #trackSelectorResult}.
+   * @return Copied playback info with new track information.
+   */
+  @CheckResult
+  public PlaybackInfo copyWithTrackInfo(
+      TrackGroupArray trackGroups, TrackSelectorResult trackSelectorResult) {
+    return new PlaybackInfo(
+        timeline,
+        periodId,
+        startPositionUs,
+        contentPositionUs,
+        playbackState,
+        playbackError,
+        isLoading,
+        trackGroups,
+        trackSelectorResult,
+        loadingMediaPeriodId,
+        bufferedPositionUs,
+        totalBufferedDurationUs,
+        positionUs);
+  }
+
+  /**
+   * Copies playback info with new loading media period.
+   *
+   * @param loadingMediaPeriodId New loading media period id. See {@link #loadingMediaPeriodId}.
+   * @return Copied playback info with new loading media period.
+   */
+  @CheckResult
+  public PlaybackInfo copyWithLoadingMediaPeriodId(MediaPeriodId loadingMediaPeriodId) {
+    return new PlaybackInfo(
+        timeline,
+        periodId,
+        startPositionUs,
+        contentPositionUs,
+        playbackState,
+        playbackError,
+        isLoading,
+        trackGroups,
+        trackSelectorResult,
+        loadingMediaPeriodId,
+        bufferedPositionUs,
+        totalBufferedDurationUs,
+        positionUs);
+  }
+}