Add Renderer.getCapabilities

Renderer no longer extends RendererCapabilities after this
change. Capabilities are instead accessed via a getter.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=127532634

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

@@ -25,7 +25,7 @@ import java.io.IOException;
 /**
  * An abstract base class suitable for most {@link Renderer} implementations.
  */
-public abstract class BaseRenderer implements Renderer {
+public abstract class BaseRenderer implements Renderer, RendererCapabilities {
 
   private int index;
   private int state;
@@ -39,6 +39,11 @@ public abstract class BaseRenderer implements Renderer {
   }
 
   @Override
+  public final RendererCapabilities getCapabilities() {
+    return this;
+  }
+
+  @Override
   public final void setIndex(int index) {
     this.index = index;
   }

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

@@ -587,6 +587,7 @@ import java.util.ArrayList;
   private final class Timeline {
 
     private final Renderer[] renderers;
+    private final RendererCapabilities[] rendererCapabilities;
 
     public boolean isReady;
     public boolean isEnded;
@@ -600,6 +601,10 @@ import java.util.ArrayList;
 
     public Timeline(Renderer[] renderers) {
       this.renderers = renderers;
+      rendererCapabilities = new RendererCapabilities[renderers.length];
+      for (int i = 0; i < renderers.length; i++) {
+        rendererCapabilities[i] = renderers[i].getCapabilities();
+      }
       playingPeriodEndPositionUs = C.UNSET_TIME_US;
     }
 
@@ -651,7 +656,8 @@ import java.util.ArrayList;
           // Attempt to create the next period.
           MediaPeriod mediaPeriod = mediaSource.createPeriod(periodIndex);
           if (mediaPeriod != null) {
-            Period newPeriod = new Period(renderers, trackSelector, mediaPeriod, periodIndex);
+            Period newPeriod = new Period(renderers, rendererCapabilities, trackSelector,
+                mediaPeriod, periodIndex);
             if (loadingPeriod != null) {
               loadingPeriod.setNextPeriod(newPeriod);
             }
@@ -1012,15 +1018,17 @@ import java.util.ArrayList;
     public boolean needsContinueLoading;
 
     private final Renderer[] renderers;
+    private final RendererCapabilities[] rendererCapabilities;
     private final TrackSelector trackSelector;
 
     private Object trackSelectionData;
     private TrackSelectionArray trackSelections;
     private TrackSelectionArray periodTrackSelections;
 
-    public Period(Renderer[] renderers, TrackSelector trackSelector, MediaPeriod mediaPeriod,
-        int index) {
+    public Period(Renderer[] renderers, RendererCapabilities[] rendererCapabilities,
+        TrackSelector trackSelector, MediaPeriod mediaPeriod, int index) {
       this.renderers = renderers;
+      this.rendererCapabilities = rendererCapabilities;
       this.trackSelector = trackSelector;
       this.mediaPeriod = mediaPeriod;
       this.index = index;
@@ -1046,7 +1054,7 @@ import java.util.ArrayList;
 
     public boolean selectTracks() throws ExoPlaybackException {
       Pair<TrackSelectionArray, Object> result =
-          trackSelector.selectTracks(renderers, mediaPeriod.getTrackGroups());
+          trackSelector.selectTracks(rendererCapabilities, mediaPeriod.getTrackGroups());
       TrackSelectionArray newTrackSelections = result.first;
       if (newTrackSelections.equals(periodTrackSelections)) {
         return false;

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

@@ -32,7 +32,7 @@ import java.io.IOException;
  *     alt="Renderer state transitions"
  *     border="0"/></p>
  */
-public interface Renderer extends ExoPlayerComponent, RendererCapabilities {
+public interface Renderer extends ExoPlayerComponent {
 
   /**
    * The renderer is disabled.
@@ -49,6 +49,22 @@ public interface Renderer extends ExoPlayerComponent, RendererCapabilities {
   int STATE_STARTED = 2;
 
   /**
+   * Returns the track type that the {@link Renderer} handles. For example, a video renderer will
+   * return {@link C#TRACK_TYPE_VIDEO}, an audio renderer will return {@link C#TRACK_TYPE_AUDIO}, a
+   * text renderer will return {@link C#TRACK_TYPE_TEXT}, and so on.
+   *
+   * @return One of the {@code TRACK_TYPE_*} constants defined in {@link C}.
+   */
+  int getTrackType();
+
+  /**
+   * Returns the capabilities of the renderer.
+   *
+   * @return The capabilities of the renderer.
+   */
+  RendererCapabilities getCapabilities();
+
+  /**
    * Sets the index of this renderer within the player.
    *
    * @param index The renderer index.

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

@@ -78,13 +78,9 @@ public interface RendererCapabilities {
    * The {@link Renderer} does not support adaptation between formats.
    */
   int ADAPTIVE_NOT_SUPPORTED = 0b0000;
-  
+
   /**
-   * Returns the track type that the {@link Renderer} handles. For example, a video renderer will
-   * return {@link C#TRACK_TYPE_VIDEO}, an audio renderer will return {@link C#TRACK_TYPE_AUDIO}, a
-   * text renderer will return {@link C#TRACK_TYPE_TEXT}, and so on.
-   *
-   * @return One of the {@code TRACK_TYPE_*} constants defined in {@link C}.
+   * @see Renderer#getTrackType()
    */
   int getTrackType();