Rename Window->MediaWindow, Timline->MediaTimeline

Window is potentially confusing with Android's Window class.
Once Window is renamed, it makes sense to rename Timeline too.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=130938392

demo/src/main/java/com/google/android/exoplayer2/demo/EventLogger.java

@@ -22,8 +22,8 @@ import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.ExoPlaybackException;
 import com.google.android.exoplayer2.ExoPlayer;
 import com.google.android.exoplayer2.Format;
+import com.google.android.exoplayer2.MediaTimeline;
 import com.google.android.exoplayer2.RendererCapabilities;
-import com.google.android.exoplayer2.Timeline;
 import com.google.android.exoplayer2.audio.AudioRendererEventListener;
 import com.google.android.exoplayer2.decoder.DecoderCounters;
 import com.google.android.exoplayer2.drm.StreamingDrmSessionManager;
@@ -89,7 +89,7 @@ import java.util.Locale;
   }
 
   @Override
-  public void onSourceInfoRefreshed(Timeline timeline, Object manifest) {
+  public void onSourceInfoRefreshed(MediaTimeline timeline, Object manifest) {
     int periodCount = timeline.getPeriodCount();
     int windowCount = timeline.getWindowCount();
     Log.d(TAG, "sourceInfo[startTime=" + timeline.getAbsoluteStartTime() + ", periodCount="

demo/src/main/java/com/google/android/exoplayer2/demo/PlayerActivity.java

@@ -40,9 +40,9 @@ import com.google.android.exoplayer2.DefaultLoadControl;
 import com.google.android.exoplayer2.ExoPlaybackException;
 import com.google.android.exoplayer2.ExoPlayer;
 import com.google.android.exoplayer2.ExoPlayerFactory;
+import com.google.android.exoplayer2.MediaTimeline;
+import com.google.android.exoplayer2.MediaWindow;
 import com.google.android.exoplayer2.SimpleExoPlayer;
-import com.google.android.exoplayer2.Timeline;
-import com.google.android.exoplayer2.Window;
 import com.google.android.exoplayer2.drm.DrmSessionManager;
 import com.google.android.exoplayer2.drm.HttpMediaDrmCallback;
 import com.google.android.exoplayer2.drm.StreamingDrmSessionManager;
@@ -376,9 +376,9 @@ public class PlayerActivity extends Activity implements OnKeyListener, OnTouchLi
       debugViewHelper.stop();
       debugViewHelper = null;
       shouldRestorePosition = false;
-      Timeline playerTimeline = player.getCurrentTimeline();
+      MediaTimeline playerTimeline = player.getCurrentTimeline();
       if (playerTimeline != null) {
-        Window window = playerTimeline.getWindow(player.getCurrentWindowIndex());
+        MediaWindow window = playerTimeline.getWindow(player.getCurrentWindowIndex());
         if (!window.isDynamic) {
           shouldRestorePosition = true;
           playerPeriod = player.getCurrentPeriodIndex();
@@ -417,7 +417,7 @@ public class PlayerActivity extends Activity implements OnKeyListener, OnTouchLi
   }
 
   @Override
-  public void onSourceInfoRefreshed(Timeline timeline, Object manifest) {
+  public void onSourceInfoRefreshed(MediaTimeline timeline, Object manifest) {
     // Do nothing.
   }
 

extensions/flac/src/androidTest/java/com/google/android/exoplayer2/ext/flac/FlacPlaybackTest.java

@@ -22,8 +22,8 @@ import android.test.InstrumentationTestCase;
 import com.google.android.exoplayer2.ExoPlaybackException;
 import com.google.android.exoplayer2.ExoPlayer;
 import com.google.android.exoplayer2.ExoPlayerFactory;
+import com.google.android.exoplayer2.MediaTimeline;
 import com.google.android.exoplayer2.Renderer;
-import com.google.android.exoplayer2.Timeline;
 import com.google.android.exoplayer2.extractor.mkv.MatroskaExtractor;
 import com.google.android.exoplayer2.source.ExtractorMediaSource;
 import com.google.android.exoplayer2.trackselection.DefaultTrackSelector;
@@ -96,7 +96,7 @@ public class FlacPlaybackTest extends InstrumentationTestCase {
     }
 
     @Override
-    public void onSourceInfoRefreshed(Timeline timeline, Object manifest) {
+    public void onSourceInfoRefreshed(MediaTimeline timeline, Object manifest) {
       // Do nothing.
     }
 

extensions/opus/src/androidTest/java/com/google/android/exoplayer2/ext/opus/OpusPlaybackTest.java

@@ -22,8 +22,8 @@ import android.test.InstrumentationTestCase;
 import com.google.android.exoplayer2.ExoPlaybackException;
 import com.google.android.exoplayer2.ExoPlayer;
 import com.google.android.exoplayer2.ExoPlayerFactory;
+import com.google.android.exoplayer2.MediaTimeline;
 import com.google.android.exoplayer2.Renderer;
-import com.google.android.exoplayer2.Timeline;
 import com.google.android.exoplayer2.extractor.mkv.MatroskaExtractor;
 import com.google.android.exoplayer2.source.ExtractorMediaSource;
 import com.google.android.exoplayer2.trackselection.DefaultTrackSelector;
@@ -96,7 +96,7 @@ public class OpusPlaybackTest extends InstrumentationTestCase {
     }
 
     @Override
-    public void onSourceInfoRefreshed(Timeline timeline, Object manifest) {
+    public void onSourceInfoRefreshed(MediaTimeline timeline, Object manifest) {
       // Do nothing.
     }
 

extensions/vp9/src/androidTest/java/com/google/android/exoplayer2/ext/vp9/VpxPlaybackTest.java

@@ -22,8 +22,8 @@ import android.test.InstrumentationTestCase;
 import com.google.android.exoplayer2.ExoPlaybackException;
 import com.google.android.exoplayer2.ExoPlayer;
 import com.google.android.exoplayer2.ExoPlayerFactory;
+import com.google.android.exoplayer2.MediaTimeline;
 import com.google.android.exoplayer2.Renderer;
-import com.google.android.exoplayer2.Timeline;
 import com.google.android.exoplayer2.extractor.mkv.MatroskaExtractor;
 import com.google.android.exoplayer2.source.ExtractorMediaSource;
 import com.google.android.exoplayer2.trackselection.DefaultTrackSelector;
@@ -115,7 +115,7 @@ public class VpxPlaybackTest extends InstrumentationTestCase {
     }
 
     @Override
-    public void onSourceInfoRefreshed(Timeline timeline, Object manifest) {
+    public void onSourceInfoRefreshed(MediaTimeline timeline, Object manifest) {
       // Do nothing.
     }
 

library/src/main/java/com/google/android/exoplayer2/ExoPlayer.java

@@ -133,7 +133,7 @@ public interface ExoPlayer {
      * @param timeline The source's timeline.
      * @param manifest The loaded manifest.
      */
-    void onSourceInfoRefreshed(Timeline timeline, Object manifest);
+    void onSourceInfoRefreshed(MediaTimeline timeline, Object manifest);
 
     /**
      * Called when an error occurs. The playback state will transition to {@link #STATE_IDLE}
@@ -376,9 +376,9 @@ public interface ExoPlayer {
   void blockingSendMessages(ExoPlayerMessage... messages);
 
   /**
-   * Returns the current {@link Timeline}, or {@code null} if there is no timeline.
+   * Returns the current {@link MediaTimeline}, or {@code null} if there is no timeline.
    */
-  Timeline getCurrentTimeline();
+  MediaTimeline getCurrentTimeline();
 
   /**
    * Returns the current manifest. The type depends on the {@link MediaSource} passed to
@@ -421,7 +421,7 @@ public interface ExoPlayer {
   @Deprecated
   int getBufferedPercentageInPeriod();
 
-  // Window based.
+  // MediaWindow based.
 
   /**
    * Returns the index of the seek window associated with the current period, or

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

@@ -42,7 +42,7 @@ import java.util.concurrent.CopyOnWriteArraySet;
   private int playbackState;
   private int pendingSeekAcks;
   private boolean isLoading;
-  private Timeline timeline;
+  private MediaTimeline timeline;
   private Object manifest;
 
   // Playback information when there is no pending seek/set source operation.
@@ -166,7 +166,7 @@ import java.util.concurrent.CopyOnWriteArraySet;
 
   @Override
   public void seekTo(long positionMs) {
-    Timeline timeline = getCurrentTimeline();
+    MediaTimeline timeline = getCurrentTimeline();
     if (timeline == null) {
       throw new IllegalArgumentException("Windows are not yet known");
     }
@@ -297,7 +297,7 @@ import java.util.concurrent.CopyOnWriteArraySet;
     }
     int periodIndex = getCurrentPeriodIndex();
     int windowIndex = timeline.getPeriodWindowIndex(periodIndex);
-    Window window = timeline.getWindow(windowIndex);
+    MediaWindow window = timeline.getWindow(windowIndex);
     int firstPeriodIndex = timeline.getWindowFirstPeriodIndex(windowIndex);
     int lastPeriodIndex = timeline.getWindowLastPeriodIndex(windowIndex);
     if (firstPeriodIndex == periodIndex && lastPeriodIndex == periodIndex
@@ -320,7 +320,7 @@ import java.util.concurrent.CopyOnWriteArraySet;
   }
 
   @Override
-  public Timeline getCurrentTimeline() {
+  public MediaTimeline getCurrentTimeline() {
     return timeline;
   }
 
@@ -370,7 +370,7 @@ import java.util.concurrent.CopyOnWriteArraySet;
       }
       case ExoPlayerImplInternal.MSG_SOURCE_INFO_REFRESHED: {
         @SuppressWarnings("unchecked")
-        Pair<Timeline, Object> timelineAndManifest = (Pair<Timeline, Object>) msg.obj;
+        Pair<MediaTimeline, Object> timelineAndManifest = (Pair<MediaTimeline, Object>) msg.obj;
         timeline = timelineAndManifest.first;
         manifest = timelineAndManifest.second;
         for (EventListener listener : listeners) {

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

@@ -131,7 +131,7 @@ import java.io.IOException;
   private Period loadingPeriod;
   private long playingPeriodEndPositionUs;
 
-  private Timeline timeline;
+  private MediaTimeline timeline;
 
   public ExoPlayerImplInternal(Renderer[] renderers, TrackSelector trackSelector,
       LoadControl loadControl, boolean playWhenReady, Handler eventHandler,
@@ -224,7 +224,7 @@ import java.io.IOException;
   // MediaSource.Listener implementation.
 
   @Override
-  public void onSourceInfoRefreshed(Timeline timeline, Object manifest) {
+  public void onSourceInfoRefreshed(MediaTimeline timeline, Object manifest) {
     handler.obtainMessage(MSG_REFRESH_SOURCE_INFO, Pair.create(timeline, manifest)).sendToTarget();
   }
 
@@ -282,7 +282,7 @@ import java.io.IOException;
           return true;
         }
         case MSG_REFRESH_SOURCE_INFO: {
-          handleSourceInfoRefreshed((Pair<Timeline, Object>) msg.obj);
+          handleSourceInfoRefreshed((Pair<MediaTimeline, Object>) msg.obj);
           return true;
         }
         case MSG_SOURCE_CONTINUE_LOADING_REQUESTED: {
@@ -785,10 +785,10 @@ import java.io.IOException;
     }
   }
 
-  private void handleSourceInfoRefreshed(Pair<Timeline, Object> timelineAndManifest)
+  private void handleSourceInfoRefreshed(Pair<MediaTimeline, Object> timelineAndManifest)
       throws ExoPlaybackException, IOException {
     eventHandler.obtainMessage(MSG_SOURCE_INFO_REFRESHED, timelineAndManifest).sendToTarget();
-    Timeline oldTimeline = this.timeline;
+    MediaTimeline oldTimeline = this.timeline;
     this.timeline = timelineAndManifest.first;
 
     // Update the loaded periods to take into account the new timeline.
@@ -866,8 +866,8 @@ import java.io.IOException;
     }
   }
 
-  private void attemptRestart(Timeline newTimeline, Timeline oldTimeline, int oldPeriodIndex)
+  private void attemptRestart(MediaTimeline newTimeline, MediaTimeline oldTimeline,
-      throws ExoPlaybackException {
+      int oldPeriodIndex) throws ExoPlaybackException {
     int newPeriodIndex = C.INDEX_UNSET;
     while (newPeriodIndex == C.INDEX_UNSET
         && oldPeriodIndex < oldTimeline.getPeriodCount() - 1) {
@@ -1196,7 +1196,7 @@ import java.io.IOException;
       this.nextPeriod = nextPeriod;
     }
 
-    public void setIndex(Timeline timeline, int index) {
+    public void setIndex(MediaTimeline timeline, int index) {
       this.index = index;
       isLast = index == timeline.getPeriodCount() - 1 && !timeline.getPeriodWindow(index).isDynamic;
     }

library/src/main/java/com/google/android/exoplayer2/MediaTimeline.java

@@ -18,7 +18,7 @@ package com.google.android.exoplayer2;
 /**
  * The player's timeline consisting of one or more periods. Instances are immutable.
  */
-public interface Timeline {
+public interface MediaTimeline {
 
   /**
    * Returns the number of periods in the timeline.
@@ -50,8 +50,7 @@ public interface Timeline {
 
   /**
    * Returns a unique identifier for the period at {@code periodIndex}, or {@code null} if the
-   * period at {@code periodIndex} is not known. The identifier is stable across {@link Timeline}
+   * period at {@code periodIndex} is not known. The identifier is stable across timeline changes.
-   * changes.
    *
    * @param periodIndex A period index.
    * @return An identifier for the period, or {@code null} if the period is not known.
@@ -59,12 +58,12 @@ public interface Timeline {
   Object getPeriodId(int periodIndex);
 
   /**
-   * Returns the {@link Window} to which the period with the specified index belongs.
+   * Returns the {@link MediaWindow} to which the period with the specified index belongs.
    *
    * @param periodIndex The period index.
    * @return The corresponding window.
    */
-  Window getPeriodWindow(int periodIndex);
+  MediaWindow getPeriodWindow(int periodIndex);
 
   /**
    * Returns the index of the window to which the period with the specified index belongs.
@@ -89,14 +88,14 @@ public interface Timeline {
   int getWindowCount();
 
   /**
-   * Returns the {@link Window} at the specified index.
+   * Returns the {@link MediaWindow} at the specified index.
    *
    * @param windowIndex The window index.
    */
-  Window getWindow(int windowIndex);
+  MediaWindow getWindow(int windowIndex);
 
   /**
-   * Returns the index of the first period belonging to the {@link Window} at the specified index.
+   * Returns the index of the first period belonging to the window at the specified index.
    *
    * @param windowIndex The window index.
    * @return The index of the first period in the window.
@@ -104,7 +103,7 @@ public interface Timeline {
   int getWindowFirstPeriodIndex(int windowIndex);
 
   /**
-   * Returns the index of the last period belonging to the {@link Window} at the specified index.
+   * Returns the index of the last period belonging to the window at the specified index.
    *
    * @param windowIndex The window index.
    * @return The index of the last period in the window.

library/src/main/java/com/google/android/exoplayer2/MediaWindow.java

@@ -18,19 +18,19 @@ package com.google.android.exoplayer2;
 /**
  * A window of available media. Instances are immutable.
  */
-public final class Window {
+public final class MediaWindow {
 
   /**
-   * Creates a new {@link Window} consisting of a single period with the specified duration. The
+   * Creates a new window consisting of a single period with the specified duration. The default
-   * default start position is zero.
+   * start position is zero.
    *
    * @param durationUs The duration of the window, in microseconds.
    * @param isSeekable Whether seeking is supported within the window.
    * @param isDynamic Whether this seek window may change when the timeline is updated.
    */
-  public static Window createWindowFromZero(long durationUs, boolean isSeekable,
+  public static MediaWindow createWindowFromZero(long durationUs, boolean isSeekable,
       boolean isDynamic) {
-    return new Window(durationUs, isSeekable, isDynamic, 0);
+    return new MediaWindow(durationUs, isSeekable, isDynamic, 0);
   }
 
   /**
@@ -59,7 +59,7 @@ public final class Window {
    * @param defaultStartPositionUs The default position relative to the start of the window at which
    *     to start playback, in microseconds.
    */
-  public Window(long durationUs, boolean isSeekable, boolean isDynamic,
+  public MediaWindow(long durationUs, boolean isSeekable, boolean isDynamic,
       long defaultStartPositionUs) {
     this.durationUs = durationUs;
     this.isSeekable = isSeekable;
@@ -85,7 +85,7 @@ public final class Window {
     if (obj == null || getClass() != obj.getClass()) {
       return false;
     }
-    Window other = (Window) obj;
+    MediaWindow other = (MediaWindow) obj;
     return other.durationUs == durationUs
         && other.isSeekable == isSeekable
         && other.isDynamic == isDynamic
@@ -94,7 +94,7 @@ public final class Window {
 
   @Override
   public String toString() {
-    return "Window[" + durationUs + ", " + defaultStartPositionUs + ", " + isSeekable + ", "
+    return "MediaWindow[" + durationUs + ", " + defaultStartPositionUs + ", " + isSeekable + ", "
         + isDynamic + "]";
   }
 

library/src/main/java/com/google/android/exoplayer2/SimpleExoPlayer.java

@@ -505,7 +505,7 @@ public final class SimpleExoPlayer implements ExoPlayer {
   }
 
   @Override
-  public Timeline getCurrentTimeline() {
+  public MediaTimeline getCurrentTimeline() {
     return player.getCurrentTimeline();
   }
 

library/src/main/java/com/google/android/exoplayer2/source/ConcatenatingMediaSource.java

@@ -17,8 +17,8 @@ package com.google.android.exoplayer2.source;
 
 import android.util.Pair;
 import com.google.android.exoplayer2.C;
-import com.google.android.exoplayer2.Timeline;
+import com.google.android.exoplayer2.MediaTimeline;
-import com.google.android.exoplayer2.Window;
+import com.google.android.exoplayer2.MediaWindow;
 import com.google.android.exoplayer2.source.MediaPeriod.Callback;
 import com.google.android.exoplayer2.upstream.Allocator;
 import com.google.android.exoplayer2.util.Util;
@@ -32,18 +32,18 @@ import java.util.Map;
 public final class ConcatenatingMediaSource implements MediaSource {
 
   private final MediaSource[] mediaSources;
-  private final Timeline[] timelines;
+  private final MediaTimeline[] timelines;
   private final Object[] manifests;
   private final Map<MediaPeriod, Integer> sourceIndexByMediaPeriod;
 
-  private ConcatenatedTimeline timeline;
+  private ConcatenatedMediaTimeline timeline;
 
   /**
    * @param mediaSources The {@link MediaSource}s to concatenate.
    */
   public ConcatenatingMediaSource(MediaSource... mediaSources) {
     this.mediaSources = mediaSources;
-    timelines = new Timeline[mediaSources.length];
+    timelines = new MediaTimeline[mediaSources.length];
     manifests = new Object[mediaSources.length];
     sourceIndexByMediaPeriod = new HashMap<>();
   }
@@ -55,16 +55,16 @@ public final class ConcatenatingMediaSource implements MediaSource {
       mediaSources[i].prepareSource(new Listener() {
 
         @Override
-        public void onSourceInfoRefreshed(Timeline sourceTimeline, Object manifest) {
+        public void onSourceInfoRefreshed(MediaTimeline sourceTimeline, Object manifest) {
           timelines[index] = sourceTimeline;
           manifests[index] = manifest;
-          for (Timeline timeline : timelines) {
+          for (MediaTimeline timeline : timelines) {
             if (timeline == null) {
               // Don't invoke the listener until all sources have timelines.
               return;
             }
           }
-          timeline = new ConcatenatedTimeline(timelines.clone());
+          timeline = new ConcatenatedMediaTimeline(timelines.clone());
           listener.onSourceInfoRefreshed(timeline, manifests.clone());
         }
 
@@ -105,21 +105,21 @@ public final class ConcatenatingMediaSource implements MediaSource {
   }
 
   /**
-   * A {@link Timeline} that is the concatenation of one or more {@link Timeline}s.
+   * A {@link MediaTimeline} that is the concatenation of one or more {@link MediaTimeline}s.
    */
-  private static final class ConcatenatedTimeline implements Timeline {
+  private static final class ConcatenatedMediaTimeline implements MediaTimeline {
 
-    private final Timeline[] timelines;
+    private final MediaTimeline[] timelines;
     private final int[] sourcePeriodOffsets;
     private final int[] sourceWindowOffsets;
 
-    public ConcatenatedTimeline(Timeline[] timelines) {
+    public ConcatenatedMediaTimeline(MediaTimeline[] timelines) {
       int[] sourcePeriodOffsets = new int[timelines.length];
       int[] sourceWindowOffsets = new int[timelines.length];
       int periodCount = 0;
       int windowCount = 0;
       for (int i = 0; i < timelines.length; i++) {
-        Timeline timeline = timelines[i];
+        MediaTimeline timeline = timelines[i];
         periodCount += timeline.getPeriodCount();
         sourcePeriodOffsets[i] = periodCount;
         windowCount += timeline.getWindowCount();
@@ -163,7 +163,7 @@ public final class ConcatenatingMediaSource implements MediaSource {
     }
 
     @Override
-    public Window getPeriodWindow(int periodIndex) {
+    public MediaWindow getPeriodWindow(int periodIndex) {
       return getWindow(getPeriodWindowIndex(periodIndex));
     }
 
@@ -200,7 +200,7 @@ public final class ConcatenatingMediaSource implements MediaSource {
     }
 
     @Override
-    public Window getWindow(int windowIndex) {
+    public MediaWindow getWindow(int windowIndex) {
       int sourceIndex = getSourceIndexForWindow(windowIndex);
       int firstWindowIndexInSource = getFirstWindowIndexInSource(sourceIndex);
       return timelines[sourceIndex].getWindow(windowIndex - firstWindowIndexInSource);

library/src/main/java/com/google/android/exoplayer2/source/ExtractorMediaPeriod.java

@@ -299,7 +299,7 @@ import java.util.Arrays;
       durationUs = largestQueuedTimestampUs == Long.MIN_VALUE ? 0
           : largestQueuedTimestampUs + DEFAULT_LAST_SAMPLE_DURATION_US;
       sourceListener.onSourceInfoRefreshed(
-          new SinglePeriodTimeline(durationUs, seekMap.isSeekable()), null);
+          new SinglePeriodMediaTimeline(durationUs, seekMap.isSeekable()), null);
     }
   }
 
@@ -382,7 +382,7 @@ import java.util.Arrays;
     tracks = new TrackGroupArray(trackArray);
     prepared = true;
     sourceListener.onSourceInfoRefreshed(
-        new SinglePeriodTimeline(durationUs, seekMap.isSeekable()), null);
+        new SinglePeriodMediaTimeline(durationUs, seekMap.isSeekable()), null);
     callback.onPrepared(this);
   }
 

library/src/main/java/com/google/android/exoplayer2/source/ExtractorMediaSource.java

@@ -18,8 +18,8 @@ package com.google.android.exoplayer2.source;
 import android.net.Uri;
 import android.os.Handler;
 import com.google.android.exoplayer2.C;
+import com.google.android.exoplayer2.MediaTimeline;
 import com.google.android.exoplayer2.ParserException;
-import com.google.android.exoplayer2.Timeline;
 import com.google.android.exoplayer2.extractor.DefaultExtractorsFactory;
 import com.google.android.exoplayer2.extractor.Extractor;
 import com.google.android.exoplayer2.extractor.ExtractorsFactory;
@@ -94,7 +94,7 @@ public final class ExtractorMediaSource implements MediaSource, MediaSource.List
   private final EventListener eventListener;
 
   private MediaSource.Listener sourceListener;
-  private Timeline timeline;
+  private MediaTimeline timeline;
 
   /**
    * @param uri The {@link Uri} of the media stream.
@@ -135,7 +135,7 @@ public final class ExtractorMediaSource implements MediaSource, MediaSource.List
   @Override
   public void prepareSource(MediaSource.Listener listener) {
     sourceListener = listener;
-    timeline = new SinglePeriodTimeline(C.TIME_UNSET, false);
+    timeline = new SinglePeriodMediaTimeline(C.TIME_UNSET, false);
     listener.onSourceInfoRefreshed(timeline, null);
   }
 
@@ -166,7 +166,7 @@ public final class ExtractorMediaSource implements MediaSource, MediaSource.List
   // MediaSource.Listener implementation.
 
   @Override
-  public void onSourceInfoRefreshed(Timeline timeline, Object manifest) {
+  public void onSourceInfoRefreshed(MediaTimeline timeline, Object manifest) {
     if (this.timeline.getPeriodDurationUs(0) != C.TIME_UNSET
         && timeline.getPeriodDurationUs(0) == C.TIME_UNSET) {
       // Suppress source info changes that would make the duration unknown when it is already known.

library/src/main/java/com/google/android/exoplayer2/source/MediaSource.java

@@ -15,7 +15,7 @@
  */
 package com.google.android.exoplayer2.source;
 
-import com.google.android.exoplayer2.Timeline;
+import com.google.android.exoplayer2.MediaTimeline;
 import com.google.android.exoplayer2.source.MediaPeriod.Callback;
 import com.google.android.exoplayer2.upstream.Allocator;
 import java.io.IOException;
@@ -36,7 +36,7 @@ public interface MediaSource {
      * @param timeline The source's timeline.
      * @param manifest The loaded manifest.
      */
-    void onSourceInfoRefreshed(Timeline timeline, Object manifest);
+    void onSourceInfoRefreshed(MediaTimeline timeline, Object manifest);
 
   }
 

library/src/main/java/com/google/android/exoplayer2/source/MergingMediaPeriod.java

@@ -27,6 +27,7 @@ import java.util.IdentityHashMap;
 /* package */ final class MergingMediaPeriod implements MediaPeriod, MediaPeriod.Callback {
 
   public final MediaPeriod[] periods;
+
   private final Callback callback;
   private final IdentityHashMap<SampleStream, Integer> streamPeriodIndices;
 

library/src/main/java/com/google/android/exoplayer2/source/MergingMediaSource.java

@@ -15,7 +15,7 @@
  */
 package com.google.android.exoplayer2.source;
 
-import com.google.android.exoplayer2.Timeline;
+import com.google.android.exoplayer2.MediaTimeline;
 import com.google.android.exoplayer2.source.MediaPeriod.Callback;
 import com.google.android.exoplayer2.upstream.Allocator;
 import com.google.android.exoplayer2.util.Assertions;
@@ -47,7 +47,7 @@ public final class MergingMediaSource implements MediaSource {
     mediaSources[0].prepareSource(new Listener() {
 
       @Override
-      public void onSourceInfoRefreshed(Timeline timeline, Object manifest) {
+      public void onSourceInfoRefreshed(MediaTimeline timeline, Object manifest) {
         checkConsistentTimeline(timeline);
 
         // All source timelines must match.
@@ -59,7 +59,7 @@ public final class MergingMediaSource implements MediaSource {
       mediaSources[i].prepareSource(new Listener() {
 
         @Override
-        public void onSourceInfoRefreshed(Timeline timeline, Object manifest) {
+        public void onSourceInfoRefreshed(MediaTimeline timeline, Object manifest) {
           checkConsistentTimeline(timeline);
         }
 
@@ -102,7 +102,7 @@ public final class MergingMediaSource implements MediaSource {
     }
   }
 
-  private void checkConsistentTimeline(Timeline timeline) {
+  private void checkConsistentTimeline(MediaTimeline timeline) {
     int windowCount = timeline.getWindowCount();
     for (int i = 0; i < windowCount; i++) {
       Assertions.checkArgument(!timeline.getWindow(i).isDynamic);

library/src/main/java/com/google/android/exoplayer2/source/SinglePeriodMediaTimeline.java

@@ -16,19 +16,19 @@
 package com.google.android.exoplayer2.source;
 
 import com.google.android.exoplayer2.C;
-import com.google.android.exoplayer2.Timeline;
+import com.google.android.exoplayer2.MediaTimeline;
-import com.google.android.exoplayer2.Window;
+import com.google.android.exoplayer2.MediaWindow;
 import com.google.android.exoplayer2.util.Assertions;
 
 /**
- * A {@link Timeline} consisting of a single period and static window.
+ * A {@link MediaTimeline} consisting of a single period and static window.
  */
-public final class SinglePeriodTimeline implements Timeline {
+public final class SinglePeriodMediaTimeline implements MediaTimeline {
 
   private static final Object ID = new Object();
 
   private final long offsetInFirstPeriodUs;
-  private final Window window;
+  private final MediaWindow window;
 
   /**
    * Creates a timeline with one period of known duration and a window extending from zero to its
@@ -37,8 +37,8 @@ public final class SinglePeriodTimeline implements Timeline {
    * @param durationUs The duration of the period, in microseconds.
    * @param isSeekable Whether seeking is supported within the period.
    */
-  public SinglePeriodTimeline(long durationUs, boolean isSeekable) {
+  public SinglePeriodMediaTimeline(long durationUs, boolean isSeekable) {
-    this(0, Window.createWindowFromZero(durationUs, isSeekable, false /* isDynamic */));
+    this(0, MediaWindow.createWindowFromZero(durationUs, isSeekable, false /* isDynamic */));
   }
 
   /**
@@ -48,7 +48,7 @@ public final class SinglePeriodTimeline implements Timeline {
    * @param offsetInFirstPeriodUs The offset of the start of the window in the period.
    * @param window The available window within the period.
    */
-  public SinglePeriodTimeline(long offsetInFirstPeriodUs, Window window) {
+  public SinglePeriodMediaTimeline(long offsetInFirstPeriodUs, MediaWindow window) {
     this.offsetInFirstPeriodUs = offsetInFirstPeriodUs;
     this.window = window;
   }
@@ -82,7 +82,7 @@ public final class SinglePeriodTimeline implements Timeline {
   }
 
   @Override
-  public Window getPeriodWindow(int periodIndex) {
+  public MediaWindow getPeriodWindow(int periodIndex) {
     Assertions.checkIndex(periodIndex, 0, 1);
     return window;
   }
@@ -104,7 +104,7 @@ public final class SinglePeriodTimeline implements Timeline {
   }
 
   @Override
-  public Window getWindow(int windowIndex) {
+  public MediaWindow getWindow(int windowIndex) {
     Assertions.checkIndex(windowIndex, 0, 1);
     return window;
   }

library/src/main/java/com/google/android/exoplayer2/source/SingleSampleMediaSource.java

@@ -18,7 +18,7 @@ package com.google.android.exoplayer2.source;
 import android.net.Uri;
 import android.os.Handler;
 import com.google.android.exoplayer2.Format;
-import com.google.android.exoplayer2.Timeline;
+import com.google.android.exoplayer2.MediaTimeline;
 import com.google.android.exoplayer2.source.MediaPeriod.Callback;
 import com.google.android.exoplayer2.upstream.Allocator;
 import com.google.android.exoplayer2.upstream.DataSource;
@@ -57,7 +57,7 @@ public final class SingleSampleMediaSource implements MediaSource {
   private final Handler eventHandler;
   private final EventListener eventListener;
   private final int eventSourceId;
-  private final Timeline timeline;
+  private final MediaTimeline timeline;
 
   public SingleSampleMediaSource(Uri uri, DataSource.Factory dataSourceFactory, Format format,
       long durationUs) {
@@ -79,7 +79,7 @@ public final class SingleSampleMediaSource implements MediaSource {
     this.eventHandler = eventHandler;
     this.eventListener = eventListener;
     this.eventSourceId = eventSourceId;
-    timeline = new SinglePeriodTimeline(durationUs, true);
+    timeline = new SinglePeriodMediaTimeline(durationUs, true);
   }
 
   // MediaSource implementation.

library/src/main/java/com/google/android/exoplayer2/source/dash/DashMediaSource.java

@@ -21,9 +21,9 @@ import android.os.SystemClock;
 import android.util.Log;
 import android.util.SparseArray;
 import com.google.android.exoplayer2.C;
+import com.google.android.exoplayer2.MediaTimeline;
+import com.google.android.exoplayer2.MediaWindow;
 import com.google.android.exoplayer2.ParserException;
-import com.google.android.exoplayer2.Timeline;
-import com.google.android.exoplayer2.Window;
 import com.google.android.exoplayer2.source.AdaptiveMediaSourceEventListener;
 import com.google.android.exoplayer2.source.AdaptiveMediaSourceEventListener.EventDispatcher;
 import com.google.android.exoplayer2.source.MediaPeriod;
@@ -71,8 +71,8 @@ public final class DashMediaSource implements MediaSource {
   public static final long DEFAULT_LIVE_EDGE_OFFSET_FIXED_MS = 30000;
   /**
    * The interval in milliseconds between invocations of
-   * {@link MediaSource.Listener#onSourceInfoRefreshed(Timeline, Object)} when the source's
+   * {@link MediaSource.Listener#onSourceInfoRefreshed(MediaTimeline, Object)} when the source's
-   * {@link Window} is changing dynamically (for example, for incomplete live streams).
+   * {@link MediaWindow} is changing dynamically (for example, for incomplete live streams).
    */
   private static final int NOTIFY_MANIFEST_INTERVAL_MS = 5000;
 
@@ -99,7 +99,7 @@ public final class DashMediaSource implements MediaSource {
   private long manifestLoadEndTimestamp;
   private DashManifest manifest;
   private Handler handler;
-  private Window window;
+  private MediaWindow window;
   private long elapsedRealtimeOffsetMs;
 
   private int firstPeriodId;
@@ -384,9 +384,9 @@ public final class DashMediaSource implements MediaSource {
       }
       defaultInitialTimeUs = Math.max(0, windowDurationUs - (liveEdgeOffsetForManifestMs * 1000));
     }
-    window = new Window(windowDurationUs, true /* isSeekable */, manifest.dynamic,
+    window = new MediaWindow(windowDurationUs, true /* isSeekable */, manifest.dynamic,
         defaultInitialTimeUs);
-    sourceListener.onSourceInfoRefreshed(new DashTimeline(firstPeriodId, currentStartTimeUs,
+    sourceListener.onSourceInfoRefreshed(new DashMediaTimeline(firstPeriodId, currentStartTimeUs,
         manifest, window), manifest);
   }
 
@@ -466,15 +466,15 @@ public final class DashMediaSource implements MediaSource {
 
   }
 
-  private static final class DashTimeline implements Timeline {
+  private static final class DashMediaTimeline implements MediaTimeline {
 
     private final int firstPeriodId;
     private final long offsetInFirstPeriodUs;
     private final DashManifest manifest;
-    private final Window window;
+    private final MediaWindow window;
 
-    public DashTimeline(int firstPeriodId, long offsetInFirstPeriodUs, DashManifest manifest,
+    public DashMediaTimeline(int firstPeriodId, long offsetInFirstPeriodUs, DashManifest manifest,
-        Window window) {
+        MediaWindow window) {
       this.firstPeriodId = firstPeriodId;
       this.offsetInFirstPeriodUs = offsetInFirstPeriodUs;
       this.manifest = manifest;
@@ -509,7 +509,7 @@ public final class DashMediaSource implements MediaSource {
     }
 
     @Override
-    public Window getPeriodWindow(int periodIndex) {
+    public MediaWindow getPeriodWindow(int periodIndex) {
       Assertions.checkIndex(periodIndex, 0, manifest.getPeriodCount());
       return window;
     }
@@ -536,7 +536,7 @@ public final class DashMediaSource implements MediaSource {
     }
 
     @Override
-    public Window getWindow(int windowIndex) {
+    public MediaWindow getWindow(int windowIndex) {
       Assertions.checkIndex(windowIndex, 0, 1);
       return window;
     }

library/src/main/java/com/google/android/exoplayer2/source/hls/HlsMediaPeriod.java

@@ -19,14 +19,14 @@ import android.net.Uri;
 import android.text.TextUtils;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.Format;
+import com.google.android.exoplayer2.MediaTimeline;
 import com.google.android.exoplayer2.ParserException;
-import com.google.android.exoplayer2.Timeline;
 import com.google.android.exoplayer2.source.AdaptiveMediaSourceEventListener.EventDispatcher;
 import com.google.android.exoplayer2.source.CompositeSequenceableLoader;
 import com.google.android.exoplayer2.source.MediaPeriod;
 import com.google.android.exoplayer2.source.MediaSource;
 import com.google.android.exoplayer2.source.SampleStream;
-import com.google.android.exoplayer2.source.SinglePeriodTimeline;
+import com.google.android.exoplayer2.source.SinglePeriodMediaTimeline;
 import com.google.android.exoplayer2.source.TrackGroup;
 import com.google.android.exoplayer2.source.TrackGroupArray;
 import com.google.android.exoplayer2.source.hls.playlist.HlsMasterPlaylist;
@@ -282,7 +282,7 @@ import java.util.List;
     callback.onPrepared(this);
 
     // TODO[playlists]: Calculate the window.
-    Timeline timeline = new SinglePeriodTimeline(durationUs, !isLive);
+    MediaTimeline timeline = new SinglePeriodMediaTimeline(durationUs, !isLive);
     sourceListener.onSourceInfoRefreshed(timeline, playlist);
   }
 

library/src/main/java/com/google/android/exoplayer2/source/hls/HlsMediaSource.java

@@ -23,7 +23,7 @@ import com.google.android.exoplayer2.source.AdaptiveMediaSourceEventListener.Eve
 import com.google.android.exoplayer2.source.MediaPeriod;
 import com.google.android.exoplayer2.source.MediaPeriod.Callback;
 import com.google.android.exoplayer2.source.MediaSource;
-import com.google.android.exoplayer2.source.SinglePeriodTimeline;
+import com.google.android.exoplayer2.source.SinglePeriodMediaTimeline;
 import com.google.android.exoplayer2.upstream.Allocator;
 import com.google.android.exoplayer2.upstream.DataSource;
 import com.google.android.exoplayer2.util.Assertions;
@@ -64,7 +64,7 @@ public final class HlsMediaSource implements MediaSource {
   public void prepareSource(MediaSource.Listener listener) {
     sourceListener = listener;
     // TODO: Defer until the playlist has been loaded.
-    listener.onSourceInfoRefreshed(new SinglePeriodTimeline(C.TIME_UNSET, false), null);
+    listener.onSourceInfoRefreshed(new SinglePeriodMediaTimeline(C.TIME_UNSET, false), null);
   }
 
   @Override

library/src/main/java/com/google/android/exoplayer2/source/smoothstreaming/SsMediaSource.java

@@ -19,15 +19,15 @@ import android.net.Uri;
 import android.os.Handler;
 import android.os.SystemClock;
 import com.google.android.exoplayer2.C;
+import com.google.android.exoplayer2.MediaTimeline;
+import com.google.android.exoplayer2.MediaWindow;
 import com.google.android.exoplayer2.ParserException;
-import com.google.android.exoplayer2.Timeline;
-import com.google.android.exoplayer2.Window;
 import com.google.android.exoplayer2.source.AdaptiveMediaSourceEventListener;
 import com.google.android.exoplayer2.source.AdaptiveMediaSourceEventListener.EventDispatcher;
 import com.google.android.exoplayer2.source.MediaPeriod;
 import com.google.android.exoplayer2.source.MediaPeriod.Callback;
 import com.google.android.exoplayer2.source.MediaSource;
-import com.google.android.exoplayer2.source.SinglePeriodTimeline;
+import com.google.android.exoplayer2.source.SinglePeriodMediaTimeline;
 import com.google.android.exoplayer2.source.smoothstreaming.manifest.SsManifest;
 import com.google.android.exoplayer2.source.smoothstreaming.manifest.SsManifest.StreamElement;
 import com.google.android.exoplayer2.source.smoothstreaming.manifest.SsManifestParser;
@@ -157,7 +157,7 @@ public final class SsMediaSource implements MediaSource,
     for (int i = 0; i < mediaPeriods.size(); i++) {
       mediaPeriods.get(i).updateManifest(manifest);
     }
-    Timeline timeline;
+    MediaTimeline timeline;
     if (manifest.isLive) {
       long startTimeUs = Long.MAX_VALUE;
       long endTimeUs = Long.MIN_VALUE;
@@ -170,7 +170,7 @@ public final class SsMediaSource implements MediaSource,
         }
       }
       if (startTimeUs == Long.MAX_VALUE) {
-        timeline = new SinglePeriodTimeline(C.TIME_UNSET, false);
+        timeline = new SinglePeriodMediaTimeline(C.TIME_UNSET, false);
       } else {
         if (manifest.dvrWindowLengthUs != C.TIME_UNSET
             && manifest.dvrWindowLengthUs > 0) {
@@ -178,13 +178,13 @@ public final class SsMediaSource implements MediaSource,
         }
         long durationUs = endTimeUs - startTimeUs;
         long defaultInitialStartPositionUs = Math.max(0, durationUs - (liveEdgeOffsetMs * 1000));
-        Window window = new Window(durationUs, true /* isSeekable */, true /* isDynamic */,
+        MediaWindow window = new MediaWindow(durationUs, true /* isSeekable */,
-            defaultInitialStartPositionUs);
+            true /* isDynamic */, defaultInitialStartPositionUs);
-        timeline = new SinglePeriodTimeline(startTimeUs, window);
+        timeline = new SinglePeriodMediaTimeline(startTimeUs, window);
       }
     } else {
       boolean isSeekable = manifest.durationUs != C.TIME_UNSET;
-      timeline = new SinglePeriodTimeline(manifest.durationUs, isSeekable);
+      timeline = new SinglePeriodMediaTimeline(manifest.durationUs, isSeekable);
     }
     sourceListener.onSourceInfoRefreshed(timeline, manifest);
     scheduleManifestRefresh();

library/src/main/java/com/google/android/exoplayer2/ui/DebugTextViewHelper.java

@@ -19,8 +19,8 @@ import android.widget.TextView;
 import com.google.android.exoplayer2.ExoPlaybackException;
 import com.google.android.exoplayer2.ExoPlayer;
 import com.google.android.exoplayer2.Format;
+import com.google.android.exoplayer2.MediaTimeline;
 import com.google.android.exoplayer2.SimpleExoPlayer;
-import com.google.android.exoplayer2.Timeline;
 import com.google.android.exoplayer2.decoder.DecoderCounters;
 
 /**
@@ -89,7 +89,7 @@ public final class DebugTextViewHelper implements Runnable, ExoPlayer.EventListe
   }
 
   @Override
-  public void onSourceInfoRefreshed(Timeline timeline, Object manifest) {
+  public void onSourceInfoRefreshed(MediaTimeline timeline, Object manifest) {
     // Do nothing.
   }
 

library/src/main/java/com/google/android/exoplayer2/ui/MediaControllerPrevNextClickListener.java

@@ -19,13 +19,13 @@ import android.view.View;
 import android.view.View.OnClickListener;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.ExoPlayer;
-import com.google.android.exoplayer2.Timeline;
+import com.google.android.exoplayer2.MediaTimeline;
 
 /**
  * An {@link OnClickListener} that can be passed to
  * {@link android.widget.MediaController#setPrevNextListeners(OnClickListener, OnClickListener)} to
  * make the controller's previous and next buttons seek to the previous and next windows in the
- * {@link Timeline}.
+ * {@link MediaTimeline}.
  */
 public class MediaControllerPrevNextClickListener implements OnClickListener {
 
@@ -54,7 +54,7 @@ public class MediaControllerPrevNextClickListener implements OnClickListener {
     if (currentWindowIndex == C.INDEX_UNSET) {
       return;
     }
-    Timeline timeline = player.getCurrentTimeline();
+    MediaTimeline timeline = player.getCurrentTimeline();
     if (isNext) {
       if (currentWindowIndex < timeline.getWindowCount() - 1) {
         player.seekToDefaultPosition(currentWindowIndex + 1);

playbacktests/src/main/java/com/google/android/exoplayer2/playbacktests/util/ExoHostedTest.java

@@ -24,8 +24,8 @@ import com.google.android.exoplayer2.ExoPlaybackException;
 import com.google.android.exoplayer2.ExoPlayer;
 import com.google.android.exoplayer2.ExoPlayerFactory;
 import com.google.android.exoplayer2.Format;
+import com.google.android.exoplayer2.MediaTimeline;
 import com.google.android.exoplayer2.SimpleExoPlayer;
-import com.google.android.exoplayer2.Timeline;
 import com.google.android.exoplayer2.audio.AudioRendererEventListener;
 import com.google.android.exoplayer2.audio.AudioTrack;
 import com.google.android.exoplayer2.decoder.DecoderCounters;
@@ -215,7 +215,7 @@ public abstract class ExoHostedTest implements HostedTest, ExoPlayer.EventListen
   }
 
   @Override
-  public final void onSourceInfoRefreshed(Timeline timeline, Object manifest) {
+  public final void onSourceInfoRefreshed(MediaTimeline timeline, Object manifest) {
     // Do nothing.
   }