Replace ConcatenatingMediaSource with DynamicConcatenatingMediaSource.

The non-dynamic media source has a strict subset of features of the dynamic one and
thus can be replaced.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187299432

RELEASENOTES.md

@@ -4,10 +4,13 @@
 
 * Downloading: Add `DownloadService`, `DownloadManager` and
   related classes ([#2643](https://github.com/google/ExoPlayer/issues/2643)).
-* MediaSources: Allow reusing media sources after they have been released and
+* MediaSources:
+  * Allow reusing media sources after they have been released and
     also in parallel to allow adding them multiple times to a concatenation.
     ([#3498](https://github.com/google/ExoPlayer/issues/3498)).
-* Allow clipping of child media sources where the period and window have a
+  * Merged `DynamicConcatenatingMediaSource` into `ConcatenatingMediaSource` and
+    deprecated `DynamicConcatenatingMediaSource`.
+  * Allow clipping of child media sources where the period and window have a
     non-zero offset with `ClippingMediaSource`
     ([#3888](https://github.com/google/ExoPlayer/issues/3888)).
 

demos/cast/src/main/java/com/google/android/exoplayer2/castdemo/PlayerManager.java

@@ -31,7 +31,7 @@ import com.google.android.exoplayer2.Timeline;
 import com.google.android.exoplayer2.Timeline.Period;
 import com.google.android.exoplayer2.castdemo.DemoUtil.Sample;
 import com.google.android.exoplayer2.ext.cast.CastPlayer;
-import com.google.android.exoplayer2.source.DynamicConcatenatingMediaSource;
+import com.google.android.exoplayer2.source.ConcatenatingMediaSource;
 import com.google.android.exoplayer2.source.ExtractorMediaSource;
 import com.google.android.exoplayer2.source.MediaSource;
 import com.google.android.exoplayer2.source.dash.DashMediaSource;
@@ -80,7 +80,7 @@ import java.util.ArrayList;
   private final ArrayList<DemoUtil.Sample> mediaQueue;
   private final QueuePositionListener queuePositionListener;
 
-  private DynamicConcatenatingMediaSource dynamicConcatenatingMediaSource;
+  private ConcatenatingMediaSource concatenatingMediaSource;
   private boolean castMediaQueueCreationPending;
   private int currentItemIndex;
   private Player currentPlayer;
@@ -155,7 +155,7 @@ import java.util.ArrayList;
   public void addItem(Sample sample) {
     mediaQueue.add(sample);
     if (currentPlayer == exoPlayer) {
-      dynamicConcatenatingMediaSource.addMediaSource(buildMediaSource(sample));
+      concatenatingMediaSource.addMediaSource(buildMediaSource(sample));
     } else {
       castPlayer.addItems(buildMediaQueueItem(sample));
     }
@@ -186,7 +186,7 @@ import java.util.ArrayList;
    */
   public boolean removeItem(int itemIndex) {
     if (currentPlayer == exoPlayer) {
-      dynamicConcatenatingMediaSource.removeMediaSource(itemIndex);
+      concatenatingMediaSource.removeMediaSource(itemIndex);
     } else {
       if (castPlayer.getPlaybackState() != Player.STATE_IDLE) {
         Timeline castTimeline = castPlayer.getCurrentTimeline();
@@ -215,7 +215,7 @@ import java.util.ArrayList;
   public boolean moveItem(int fromIndex, int toIndex) {
     // Player update.
     if (currentPlayer == exoPlayer) {
-      dynamicConcatenatingMediaSource.moveMediaSource(fromIndex, toIndex);
+      concatenatingMediaSource.moveMediaSource(fromIndex, toIndex);
     } else if (castPlayer.getPlaybackState() != Player.STATE_IDLE) {
       Timeline castTimeline = castPlayer.getCurrentTimeline();
       int periodCount = castTimeline.getPeriodCount();
@@ -349,11 +349,11 @@ import java.util.ArrayList;
     // Media queue management.
     castMediaQueueCreationPending = currentPlayer == castPlayer;
     if (currentPlayer == exoPlayer) {
-      dynamicConcatenatingMediaSource = new DynamicConcatenatingMediaSource();
+      concatenatingMediaSource = new ConcatenatingMediaSource();
       for (int i = 0; i < mediaQueue.size(); i++) {
-        dynamicConcatenatingMediaSource.addMediaSource(buildMediaSource(mediaQueue.get(i)));
+        concatenatingMediaSource.addMediaSource(buildMediaSource(mediaQueue.get(i)));
       }
-      exoPlayer.prepare(dynamicConcatenatingMediaSource);
+      exoPlayer.prepare(concatenatingMediaSource);
     }
 
     // Playback transition.

extensions/mediasession/src/main/java/com/google/android/exoplayer2/ext/mediasession/TimelineQueueEditor.java

@@ -25,21 +25,21 @@ import android.support.v4.media.session.MediaControllerCompat;
 import android.support.v4.media.session.MediaSessionCompat;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.Player;
-import com.google.android.exoplayer2.source.DynamicConcatenatingMediaSource;
+import com.google.android.exoplayer2.source.ConcatenatingMediaSource;
 import com.google.android.exoplayer2.source.MediaSource;
 import com.google.android.exoplayer2.util.Util;
 import java.util.List;
 
 /**
- * A {@link MediaSessionConnector.QueueEditor} implementation based on the
- * {@link DynamicConcatenatingMediaSource}.
- * <p>
- * This class implements the {@link MediaSessionConnector.CommandReceiver} interface and handles
+ * A {@link MediaSessionConnector.QueueEditor} implementation based on the {@link
+ * ConcatenatingMediaSource}.
+ *
+ * <p>This class implements the {@link MediaSessionConnector.CommandReceiver} interface and handles
  * the {@link #COMMAND_MOVE_QUEUE_ITEM} to move a queue item instead of removing and inserting it.
  * This allows to move the currently playing window without interrupting playback.
  */
-public final class TimelineQueueEditor implements MediaSessionConnector.QueueEditor,
-    MediaSessionConnector.CommandReceiver {
+public final class TimelineQueueEditor
+    implements MediaSessionConnector.QueueEditor, MediaSessionConnector.CommandReceiver {
 
   public static final String COMMAND_MOVE_QUEUE_ITEM = "exo_move_window";
   public static final String EXTRA_FROM_INDEX = "from_index";
@@ -125,20 +125,21 @@ public final class TimelineQueueEditor implements MediaSessionConnector.QueueEdi
   private final QueueDataAdapter queueDataAdapter;
   private final MediaSourceFactory sourceFactory;
   private final MediaDescriptionEqualityChecker equalityChecker;
-  private final DynamicConcatenatingMediaSource queueMediaSource;
+  private final ConcatenatingMediaSource queueMediaSource;
 
   /**
    * Creates a new {@link TimelineQueueEditor} with a given mediaSourceFactory.
    *
    * @param mediaController A {@link MediaControllerCompat} to read the current queue.
-   * @param queueMediaSource The {@link DynamicConcatenatingMediaSource} to
-   *     manipulate.
+   * @param queueMediaSource The {@link ConcatenatingMediaSource} to manipulate.
    * @param queueDataAdapter A {@link QueueDataAdapter} to change the backing data.
    * @param sourceFactory The {@link MediaSourceFactory} to build media sources.
    */
-  public TimelineQueueEditor(@NonNull MediaControllerCompat mediaController,
-      @NonNull DynamicConcatenatingMediaSource queueMediaSource,
-      @NonNull QueueDataAdapter queueDataAdapter, @NonNull MediaSourceFactory sourceFactory) {
+  public TimelineQueueEditor(
+      @NonNull MediaControllerCompat mediaController,
+      @NonNull ConcatenatingMediaSource queueMediaSource,
+      @NonNull QueueDataAdapter queueDataAdapter,
+      @NonNull MediaSourceFactory sourceFactory) {
     this(mediaController, queueMediaSource, queueDataAdapter, sourceFactory,
         new MediaIdEqualityChecker());
   }
@@ -147,15 +148,16 @@ public final class TimelineQueueEditor implements MediaSessionConnector.QueueEdi
    * Creates a new {@link TimelineQueueEditor} with a given mediaSourceFactory.
    *
    * @param mediaController A {@link MediaControllerCompat} to read the current queue.
-   * @param queueMediaSource The {@link DynamicConcatenatingMediaSource} to
-   *     manipulate.
+   * @param queueMediaSource The {@link ConcatenatingMediaSource} to manipulate.
    * @param queueDataAdapter A {@link QueueDataAdapter} to change the backing data.
    * @param sourceFactory The {@link MediaSourceFactory} to build media sources.
    * @param equalityChecker The {@link MediaDescriptionEqualityChecker} to match queue items.
    */
-  public TimelineQueueEditor(@NonNull MediaControllerCompat mediaController,
-      @NonNull DynamicConcatenatingMediaSource queueMediaSource,
-      @NonNull QueueDataAdapter queueDataAdapter, @NonNull MediaSourceFactory sourceFactory,
+  public TimelineQueueEditor(
+      @NonNull MediaControllerCompat mediaController,
+      @NonNull ConcatenatingMediaSource queueMediaSource,
+      @NonNull QueueDataAdapter queueDataAdapter,
+      @NonNull MediaSourceFactory sourceFactory,
       @NonNull MediaDescriptionEqualityChecker equalityChecker) {
     this.mediaController = mediaController;
     this.queueMediaSource = queueMediaSource;

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

@@ -21,7 +21,6 @@ import com.google.android.exoplayer2.audio.MediaCodecAudioRenderer;
 import com.google.android.exoplayer2.metadata.MetadataRenderer;
 import com.google.android.exoplayer2.source.ClippingMediaSource;
 import com.google.android.exoplayer2.source.ConcatenatingMediaSource;
-import com.google.android.exoplayer2.source.DynamicConcatenatingMediaSource;
 import com.google.android.exoplayer2.source.ExtractorMediaSource;
 import com.google.android.exoplayer2.source.LoopingMediaSource;
 import com.google.android.exoplayer2.source.MediaSource;
@@ -54,8 +53,7 @@ import com.google.android.exoplayer2.video.MediaCodecVideoRenderer;
  *       implementation for loading single media samples ({@link SingleSampleMediaSource}) that's
  *       most often used for side-loaded subtitle files, and implementations for building more
  *       complex MediaSources from simpler ones ({@link MergingMediaSource}, {@link
- *       ConcatenatingMediaSource}, {@link DynamicConcatenatingMediaSource}, {@link
- *       LoopingMediaSource} and {@link ClippingMediaSource}).
+ *       ConcatenatingMediaSource}, {@link LoopingMediaSource} and {@link ClippingMediaSource}).
  *   <li><b>{@link Renderer}</b>s that render individual components of the media. The library
  *       provides default implementations for common media types ({@link MediaCodecVideoRenderer},
  *       {@link MediaCodecAudioRenderer}, {@link TextRenderer} and {@link MetadataRenderer}). A