Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 651 insertions, 0 deletions

diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/util/EventLogger.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/util/EventLogger.java
new file mode 100644
index 0000000000..0c2a6abcf1
--- /dev/null
+++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/util/EventLogger.java
@@ -0,0 +1,651 @@
+/*
+ * Copyright (C) 2016 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.util;
+
+import android.os.SystemClock;
+import android.text.TextUtils;
+import android.view.Surface;
+import androidx.annotation.Nullable;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.C;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.ExoPlaybackException;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.Format;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.PlaybackParameters;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.Player;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.Player.PlaybackSuppressionReason;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.RendererCapabilities;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.RendererCapabilities.AdaptiveSupport;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.Timeline;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.analytics.AnalyticsListener;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.audio.AudioAttributes;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.decoder.DecoderCounters;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.metadata.Metadata;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.source.MediaSourceEventListener.LoadEventInfo;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.source.MediaSourceEventListener.MediaLoadData;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.source.TrackGroup;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.source.TrackGroupArray;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.trackselection.MappingTrackSelector;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.trackselection.MappingTrackSelector.MappedTrackInfo;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.trackselection.TrackSelection;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.trackselection.TrackSelectionArray;
+import java.io.IOException;
+import java.text.NumberFormat;
+import java.util.Locale;
+
+/** Logs events from {@link Player} and other core components using {@link Log}. */
+@SuppressWarnings("UngroupedOverloads")
+public class EventLogger implements AnalyticsListener {
+
+  private static final String DEFAULT_TAG = "EventLogger";
+  private static final int MAX_TIMELINE_ITEM_LINES = 3;
+  private static final NumberFormat TIME_FORMAT;
+  static {
+    TIME_FORMAT = NumberFormat.getInstance(Locale.US);
+    TIME_FORMAT.setMinimumFractionDigits(2);
+    TIME_FORMAT.setMaximumFractionDigits(2);
+    TIME_FORMAT.setGroupingUsed(false);
+  }
+
+  @Nullable private final MappingTrackSelector trackSelector;
+  private final String tag;
+  private final Timeline.Window window;
+  private final Timeline.Period period;
+  private final long startTimeMs;
+
+  /**
+   * Creates event logger.
+   *
+   * @param trackSelector The mapping track selector used by the player. May be null if detailed
+   *     logging of track mapping is not required.
+   */
+  public EventLogger(@Nullable MappingTrackSelector trackSelector) {
+    this(trackSelector, DEFAULT_TAG);
+  }
+
+  /**
+   * Creates event logger.
+   *
+   * @param trackSelector The mapping track selector used by the player. May be null if detailed
+   *     logging of track mapping is not required.
+   * @param tag The tag used for logging.
+   */
+  public EventLogger(@Nullable MappingTrackSelector trackSelector, String tag) {
+    this.trackSelector = trackSelector;
+    this.tag = tag;
+    window = new Timeline.Window();
+    period = new Timeline.Period();
+    startTimeMs = SystemClock.elapsedRealtime();
+  }
+
+  // AnalyticsListener
+
+  @Override
+  public void onLoadingChanged(EventTime eventTime, boolean isLoading) {
+    logd(eventTime, "loading", Boolean.toString(isLoading));
+  }
+
+  @Override
+  public void onPlayerStateChanged(
+      EventTime eventTime, boolean playWhenReady, @Player.State int state) {
+    logd(eventTime, "state", playWhenReady + ", " + getStateString(state));
+  }
+
+  @Override
+  public void onPlaybackSuppressionReasonChanged(
+      EventTime eventTime, @PlaybackSuppressionReason int playbackSuppressionReason) {
+    logd(
+        eventTime,
+        "playbackSuppressionReason",
+        getPlaybackSuppressionReasonString(playbackSuppressionReason));
+  }
+
+  @Override
+  public void onIsPlayingChanged(EventTime eventTime, boolean isPlaying) {
+    logd(eventTime, "isPlaying", Boolean.toString(isPlaying));
+  }
+
+  @Override
+  public void onRepeatModeChanged(EventTime eventTime, @Player.RepeatMode int repeatMode) {
+    logd(eventTime, "repeatMode", getRepeatModeString(repeatMode));
+  }
+
+  @Override
+  public void onShuffleModeChanged(EventTime eventTime, boolean shuffleModeEnabled) {
+    logd(eventTime, "shuffleModeEnabled", Boolean.toString(shuffleModeEnabled));
+  }
+
+  @Override
+  public void onPositionDiscontinuity(EventTime eventTime, @Player.DiscontinuityReason int reason) {
+    logd(eventTime, "positionDiscontinuity", getDiscontinuityReasonString(reason));
+  }
+
+  @Override
+  public void onSeekStarted(EventTime eventTime) {
+    logd(eventTime, "seekStarted");
+  }
+
+  @Override
+  public void onPlaybackParametersChanged(
+      EventTime eventTime, PlaybackParameters playbackParameters) {
+    logd(
+        eventTime,
+        "playbackParameters",
+        Util.formatInvariant(
+            "speed=%.2f, pitch=%.2f, skipSilence=%s",
+            playbackParameters.speed, playbackParameters.pitch, playbackParameters.skipSilence));
+  }
+
+  @Override
+  public void onTimelineChanged(EventTime eventTime, @Player.TimelineChangeReason int reason) {
+    int periodCount = eventTime.timeline.getPeriodCount();
+    int windowCount = eventTime.timeline.getWindowCount();
+    logd(
+        "timeline ["
+            + getEventTimeString(eventTime)
+            + ", periodCount="
+            + periodCount
+            + ", windowCount="
+            + windowCount
+            + ", reason="
+            + getTimelineChangeReasonString(reason));
+    for (int i = 0; i < Math.min(periodCount, MAX_TIMELINE_ITEM_LINES); i++) {
+      eventTime.timeline.getPeriod(i, period);
+      logd("  " + "period [" + getTimeString(period.getDurationMs()) + "]");
+    }
+    if (periodCount > MAX_TIMELINE_ITEM_LINES) {
+      logd("  ...");
+    }
+    for (int i = 0; i < Math.min(windowCount, MAX_TIMELINE_ITEM_LINES); i++) {
+      eventTime.timeline.getWindow(i, window);
+      logd(
+          "  "
+              + "window ["
+              + getTimeString(window.getDurationMs())
+              + ", "
+              + window.isSeekable
+              + ", "
+              + window.isDynamic
+              + "]");
+    }
+    if (windowCount > MAX_TIMELINE_ITEM_LINES) {
+      logd("  ...");
+    }
+    logd("]");
+  }
+
+  @Override
+  public void onPlayerError(EventTime eventTime, ExoPlaybackException e) {
+    loge(eventTime, "playerFailed", e);
+  }
+
+  @Override
+  public void onTracksChanged(
+      EventTime eventTime, TrackGroupArray ignored, TrackSelectionArray trackSelections) {
+    MappedTrackInfo mappedTrackInfo =
+        trackSelector != null ? trackSelector.getCurrentMappedTrackInfo() : null;
+    if (mappedTrackInfo == null) {
+      logd(eventTime, "tracks", "[]");
+      return;
+    }
+    logd("tracks [" + getEventTimeString(eventTime));
+    // Log tracks associated to renderers.
+    int rendererCount = mappedTrackInfo.getRendererCount();
+    for (int rendererIndex = 0; rendererIndex < rendererCount; rendererIndex++) {
+      TrackGroupArray rendererTrackGroups = mappedTrackInfo.getTrackGroups(rendererIndex);
+      TrackSelection trackSelection = trackSelections.get(rendererIndex);
+      if (rendererTrackGroups.length > 0) {
+        logd("  Renderer:" + rendererIndex + " [");
+        for (int groupIndex = 0; groupIndex < rendererTrackGroups.length; groupIndex++) {
+          TrackGroup trackGroup = rendererTrackGroups.get(groupIndex);
+          String adaptiveSupport =
+              getAdaptiveSupportString(
+                  trackGroup.length,
+                  mappedTrackInfo.getAdaptiveSupport(
+                      rendererIndex, groupIndex, /* includeCapabilitiesExceededTracks= */ false));
+          logd("    Group:" + groupIndex + ", adaptive_supported=" + adaptiveSupport + " [");
+          for (int trackIndex = 0; trackIndex < trackGroup.length; trackIndex++) {
+            String status = getTrackStatusString(trackSelection, trackGroup, trackIndex);
+            String formatSupport =
+                RendererCapabilities.getFormatSupportString(
+                    mappedTrackInfo.getTrackSupport(rendererIndex, groupIndex, trackIndex));
+            logd(
+                "      "
+                    + status
+                    + " Track:"
+                    + trackIndex
+                    + ", "
+                    + Format.toLogString(trackGroup.getFormat(trackIndex))
+                    + ", supported="
+                    + formatSupport);
+          }
+          logd("    ]");
+        }
+        // Log metadata for at most one of the tracks selected for the renderer.
+        if (trackSelection != null) {
+          for (int selectionIndex = 0; selectionIndex < trackSelection.length(); selectionIndex++) {
+            Metadata metadata = trackSelection.getFormat(selectionIndex).metadata;
+            if (metadata != null) {
+              logd("    Metadata [");
+              printMetadata(metadata, "      ");
+              logd("    ]");
+              break;
+            }
+          }
+        }
+        logd("  ]");
+      }
+    }
+    // Log tracks not associated with a renderer.
+    TrackGroupArray unassociatedTrackGroups = mappedTrackInfo.getUnmappedTrackGroups();
+    if (unassociatedTrackGroups.length > 0) {
+      logd("  Renderer:None [");
+      for (int groupIndex = 0; groupIndex < unassociatedTrackGroups.length; groupIndex++) {
+        logd("    Group:" + groupIndex + " [");
+        TrackGroup trackGroup = unassociatedTrackGroups.get(groupIndex);
+        for (int trackIndex = 0; trackIndex < trackGroup.length; trackIndex++) {
+          String status = getTrackStatusString(false);
+          String formatSupport =
+              RendererCapabilities.getFormatSupportString(
+                  RendererCapabilities.FORMAT_UNSUPPORTED_TYPE);
+          logd(
+              "      "
+                  + status
+                  + " Track:"
+                  + trackIndex
+                  + ", "
+                  + Format.toLogString(trackGroup.getFormat(trackIndex))
+                  + ", supported="
+                  + formatSupport);
+        }
+        logd("    ]");
+      }
+      logd("  ]");
+    }
+    logd("]");
+  }
+
+  @Override
+  public void onSeekProcessed(EventTime eventTime) {
+    logd(eventTime, "seekProcessed");
+  }
+
+  @Override
+  public void onMetadata(EventTime eventTime, Metadata metadata) {
+    logd("metadata [" + getEventTimeString(eventTime));
+    printMetadata(metadata, "  ");
+    logd("]");
+  }
+
+  @Override
+  public void onDecoderEnabled(EventTime eventTime, int trackType, DecoderCounters counters) {
+    logd(eventTime, "decoderEnabled", Util.getTrackTypeString(trackType));
+  }
+
+  @Override
+  public void onAudioSessionId(EventTime eventTime, int audioSessionId) {
+    logd(eventTime, "audioSessionId", Integer.toString(audioSessionId));
+  }
+
+  @Override
+  public void onAudioAttributesChanged(EventTime eventTime, AudioAttributes audioAttributes) {
+    logd(
+        eventTime,
+        "audioAttributes",
+        audioAttributes.contentType
+            + ","
+            + audioAttributes.flags
+            + ","
+            + audioAttributes.usage
+            + ","
+            + audioAttributes.allowedCapturePolicy);
+  }
+
+  @Override
+  public void onVolumeChanged(EventTime eventTime, float volume) {
+    logd(eventTime, "volume", Float.toString(volume));
+  }
+
+  @Override
+  public void onDecoderInitialized(
+      EventTime eventTime, int trackType, String decoderName, long initializationDurationMs) {
+    logd(eventTime, "decoderInitialized", Util.getTrackTypeString(trackType) + ", " + decoderName);
+  }
+
+  @Override
+  public void onDecoderInputFormatChanged(EventTime eventTime, int trackType, Format format) {
+    logd(
+        eventTime,
+        "decoderInputFormat",
+        Util.getTrackTypeString(trackType) + ", " + Format.toLogString(format));
+  }
+
+  @Override
+  public void onDecoderDisabled(EventTime eventTime, int trackType, DecoderCounters counters) {
+    logd(eventTime, "decoderDisabled", Util.getTrackTypeString(trackType));
+  }
+
+  @Override
+  public void onAudioUnderrun(
+      EventTime eventTime, int bufferSize, long bufferSizeMs, long elapsedSinceLastFeedMs) {
+    loge(
+        eventTime,
+        "audioTrackUnderrun",
+        bufferSize + ", " + bufferSizeMs + ", " + elapsedSinceLastFeedMs + "]",
+        null);
+  }
+
+  @Override
+  public void onDroppedVideoFrames(EventTime eventTime, int count, long elapsedMs) {
+    logd(eventTime, "droppedFrames", Integer.toString(count));
+  }
+
+  @Override
+  public void onVideoSizeChanged(
+      EventTime eventTime,
+      int width,
+      int height,
+      int unappliedRotationDegrees,
+      float pixelWidthHeightRatio) {
+    logd(eventTime, "videoSize", width + ", " + height);
+  }
+
+  @Override
+  public void onRenderedFirstFrame(EventTime eventTime, @Nullable Surface surface) {
+    logd(eventTime, "renderedFirstFrame", String.valueOf(surface));
+  }
+
+  @Override
+  public void onMediaPeriodCreated(EventTime eventTime) {
+    logd(eventTime, "mediaPeriodCreated");
+  }
+
+  @Override
+  public void onMediaPeriodReleased(EventTime eventTime) {
+    logd(eventTime, "mediaPeriodReleased");
+  }
+
+  @Override
+  public void onLoadStarted(
+      EventTime eventTime, LoadEventInfo loadEventInfo, MediaLoadData mediaLoadData) {
+    // Do nothing.
+  }
+
+  @Override
+  public void onLoadError(
+      EventTime eventTime,
+      LoadEventInfo loadEventInfo,
+      MediaLoadData mediaLoadData,
+      IOException error,
+      boolean wasCanceled) {
+    printInternalError(eventTime, "loadError", error);
+  }
+
+  @Override
+  public void onLoadCanceled(
+      EventTime eventTime, LoadEventInfo loadEventInfo, MediaLoadData mediaLoadData) {
+    // Do nothing.
+  }
+
+  @Override
+  public void onLoadCompleted(
+      EventTime eventTime, LoadEventInfo loadEventInfo, MediaLoadData mediaLoadData) {
+    // Do nothing.
+  }
+
+  @Override
+  public void onReadingStarted(EventTime eventTime) {
+    logd(eventTime, "mediaPeriodReadingStarted");
+  }
+
+  @Override
+  public void onBandwidthEstimate(
+      EventTime eventTime, int totalLoadTimeMs, long totalBytesLoaded, long bitrateEstimate) {
+    // Do nothing.
+  }
+
+  @Override
+  public void onSurfaceSizeChanged(EventTime eventTime, int width, int height) {
+    logd(eventTime, "surfaceSize", width + ", " + height);
+  }
+
+  @Override
+  public void onUpstreamDiscarded(EventTime eventTime, MediaLoadData mediaLoadData) {
+    logd(eventTime, "upstreamDiscarded", Format.toLogString(mediaLoadData.trackFormat));
+  }
+
+  @Override
+  public void onDownstreamFormatChanged(EventTime eventTime, MediaLoadData mediaLoadData) {
+    logd(eventTime, "downstreamFormat", Format.toLogString(mediaLoadData.trackFormat));
+  }
+
+  @Override
+  public void onDrmSessionAcquired(EventTime eventTime) {
+    logd(eventTime, "drmSessionAcquired");
+  }
+
+  @Override
+  public void onDrmSessionManagerError(EventTime eventTime, Exception e) {
+    printInternalError(eventTime, "drmSessionManagerError", e);
+  }
+
+  @Override
+  public void onDrmKeysRestored(EventTime eventTime) {
+    logd(eventTime, "drmKeysRestored");
+  }
+
+  @Override
+  public void onDrmKeysRemoved(EventTime eventTime) {
+    logd(eventTime, "drmKeysRemoved");
+  }
+
+  @Override
+  public void onDrmKeysLoaded(EventTime eventTime) {
+    logd(eventTime, "drmKeysLoaded");
+  }
+
+  @Override
+  public void onDrmSessionReleased(EventTime eventTime) {
+    logd(eventTime, "drmSessionReleased");
+  }
+
+  /**
+   * Logs a debug message.
+   *
+   * @param msg The message to log.
+   */
+  protected void logd(String msg) {
+    Log.d(tag, msg);
+  }
+
+  /**
+   * Logs an error message.
+   *
+   * @param msg The message to log.
+   */
+  protected void loge(String msg) {
+    Log.e(tag, msg);
+  }
+
+  // Internal methods
+
+  private void logd(EventTime eventTime, String eventName) {
+    logd(getEventString(eventTime, eventName, /* eventDescription= */ null, /* throwable= */ null));
+  }
+
+  private void logd(EventTime eventTime, String eventName, String eventDescription) {
+    logd(getEventString(eventTime, eventName, eventDescription, /* throwable= */ null));
+  }
+
+  private void loge(EventTime eventTime, String eventName, @Nullable Throwable throwable) {
+    loge(getEventString(eventTime, eventName, /* eventDescription= */ null, throwable));
+  }
+
+  private void loge(
+      EventTime eventTime,
+      String eventName,
+      String eventDescription,
+      @Nullable Throwable throwable) {
+    loge(getEventString(eventTime, eventName, eventDescription, throwable));
+  }
+
+  private void printInternalError(EventTime eventTime, String type, Exception e) {
+    loge(eventTime, "internalError", type, e);
+  }
+
+  private void printMetadata(Metadata metadata, String prefix) {
+    for (int i = 0; i < metadata.length(); i++) {
+      logd(prefix + metadata.get(i));
+    }
+  }
+
+  private String getEventString(
+      EventTime eventTime,
+      String eventName,
+      @Nullable String eventDescription,
+      @Nullable Throwable throwable) {
+    String eventString = eventName + " [" + getEventTimeString(eventTime);
+    if (eventDescription != null) {
+      eventString += ", " + eventDescription;
+    }
+    @Nullable String throwableString = Log.getThrowableString(throwable);
+    if (!TextUtils.isEmpty(throwableString)) {
+      eventString += "\n  " + throwableString.replace("\n", "\n  ") + '\n';
+    }
+    eventString += "]";
+    return eventString;
+  }
+
+  private String getEventTimeString(EventTime eventTime) {
+    String windowPeriodString = "window=" + eventTime.windowIndex;
+    if (eventTime.mediaPeriodId != null) {
+      windowPeriodString +=
+          ", period=" + eventTime.timeline.getIndexOfPeriod(eventTime.mediaPeriodId.periodUid);
+      if (eventTime.mediaPeriodId.isAd()) {
+        windowPeriodString += ", adGroup=" + eventTime.mediaPeriodId.adGroupIndex;
+        windowPeriodString += ", ad=" + eventTime.mediaPeriodId.adIndexInAdGroup;
+      }
+    }
+    return "eventTime="
+        + getTimeString(eventTime.realtimeMs - startTimeMs)
+        + ", mediaPos="
+        + getTimeString(eventTime.currentPlaybackPositionMs)
+        + ", "
+        + windowPeriodString;
+  }
+
+  private static String getTimeString(long timeMs) {
+    return timeMs == C.TIME_UNSET ? "?" : TIME_FORMAT.format((timeMs) / 1000f);
+  }
+
+  private static String getStateString(int state) {
+    switch (state) {
+      case Player.STATE_BUFFERING:
+        return "BUFFERING";
+      case Player.STATE_ENDED:
+        return "ENDED";
+      case Player.STATE_IDLE:
+        return "IDLE";
+      case Player.STATE_READY:
+        return "READY";
+      default:
+        return "?";
+    }
+  }
+
+  private static String getAdaptiveSupportString(
+      int trackCount, @AdaptiveSupport int adaptiveSupport) {
+    if (trackCount < 2) {
+      return "N/A";
+    }
+    switch (adaptiveSupport) {
+      case RendererCapabilities.ADAPTIVE_SEAMLESS:
+        return "YES";
+      case RendererCapabilities.ADAPTIVE_NOT_SEAMLESS:
+        return "YES_NOT_SEAMLESS";
+      case RendererCapabilities.ADAPTIVE_NOT_SUPPORTED:
+        return "NO";
+      default:
+        throw new IllegalStateException();
+    }
+  }
+
+  // Suppressing reference equality warning because the track group stored in the track selection
+  // must point to the exact track group object to be considered part of it.
+  @SuppressWarnings("ReferenceEquality")
+  private static String getTrackStatusString(
+      @Nullable TrackSelection selection, TrackGroup group, int trackIndex) {
+    return getTrackStatusString(selection != null && selection.getTrackGroup() == group
+        && selection.indexOf(trackIndex) != C.INDEX_UNSET);
+  }
+
+  private static String getTrackStatusString(boolean enabled) {
+    return enabled ? "[X]" : "[ ]";
+  }
+
+  private static String getRepeatModeString(@Player.RepeatMode int repeatMode) {
+    switch (repeatMode) {
+      case Player.REPEAT_MODE_OFF:
+        return "OFF";
+      case Player.REPEAT_MODE_ONE:
+        return "ONE";
+      case Player.REPEAT_MODE_ALL:
+        return "ALL";
+      default:
+        return "?";
+    }
+  }
+
+  private static String getDiscontinuityReasonString(@Player.DiscontinuityReason int reason) {
+    switch (reason) {
+      case Player.DISCONTINUITY_REASON_PERIOD_TRANSITION:
+        return "PERIOD_TRANSITION";
+      case Player.DISCONTINUITY_REASON_SEEK:
+        return "SEEK";
+      case Player.DISCONTINUITY_REASON_SEEK_ADJUSTMENT:
+        return "SEEK_ADJUSTMENT";
+      case Player.DISCONTINUITY_REASON_AD_INSERTION:
+        return "AD_INSERTION";
+      case Player.DISCONTINUITY_REASON_INTERNAL:
+        return "INTERNAL";
+      default:
+        return "?";
+    }
+  }
+
+  private static String getTimelineChangeReasonString(@Player.TimelineChangeReason int reason) {
+    switch (reason) {
+      case Player.TIMELINE_CHANGE_REASON_PREPARED:
+        return "PREPARED";
+      case Player.TIMELINE_CHANGE_REASON_RESET:
+        return "RESET";
+      case Player.TIMELINE_CHANGE_REASON_DYNAMIC:
+        return "DYNAMIC";
+      default:
+        return "?";
+    }
+  }
+
+  private static String getPlaybackSuppressionReasonString(
+      @PlaybackSuppressionReason int playbackSuppressionReason) {
+    switch (playbackSuppressionReason) {
+      case Player.PLAYBACK_SUPPRESSION_REASON_NONE:
+        return "NONE";
+      case Player.PLAYBACK_SUPPRESSION_REASON_TRANSIENT_AUDIO_FOCUS_LOSS:
+        return "TRANSIENT_AUDIO_FOCUS_LOSS";
+      default:
+        return "?";
+    }
+  }
+}