Rename AdaptiveVideoTrackSelection to AdaptiveTrackSelection

This will allow us to use the same class for Audio adaptation.

Issue:#1975

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=150302561

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

@@ -55,7 +55,7 @@ import com.google.android.exoplayer2.source.dash.DefaultDashChunkSource;
 import com.google.android.exoplayer2.source.hls.HlsMediaSource;
 import com.google.android.exoplayer2.source.smoothstreaming.DefaultSsChunkSource;
 import com.google.android.exoplayer2.source.smoothstreaming.SsMediaSource;
-import com.google.android.exoplayer2.trackselection.AdaptiveVideoTrackSelection;
+import com.google.android.exoplayer2.trackselection.AdaptiveTrackSelection;
 import com.google.android.exoplayer2.trackselection.DefaultTrackSelector;
 import com.google.android.exoplayer2.trackselection.MappingTrackSelector.MappedTrackInfo;
 import com.google.android.exoplayer2.trackselection.TrackSelection;
@@ -256,7 +256,7 @@ public class PlayerActivity extends Activity implements OnClickListener, ExoPlay
               : SimpleExoPlayer.EXTENSION_RENDERER_MODE_ON)
               : SimpleExoPlayer.EXTENSION_RENDERER_MODE_OFF;
       TrackSelection.Factory videoTrackSelectionFactory =
-          new AdaptiveVideoTrackSelection.Factory(BANDWIDTH_METER);
+          new AdaptiveTrackSelection.Factory(BANDWIDTH_METER);
       trackSelector = new DefaultTrackSelector(videoTrackSelectionFactory);
       trackSelectionHelper = new TrackSelectionHelper(trackSelector, videoTrackSelectionFactory);
       player = ExoPlayerFactory.newSimpleInstance(this, trackSelector, new DefaultLoadControl(),

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

@@ -51,7 +51,7 @@ import java.util.Locale;
   private static final TrackSelection.Factory RANDOM_FACTORY = new RandomTrackSelection.Factory();
 
   private final MappingTrackSelector selector;
-  private final TrackSelection.Factory adaptiveVideoTrackSelectionFactory;
+  private final TrackSelection.Factory adaptiveTrackSelectionFactory;
 
   private MappedTrackInfo trackInfo;
   private int rendererIndex;
@@ -67,13 +67,13 @@ import java.util.Locale;
 
   /**
    * @param selector The track selector.
-   * @param adaptiveVideoTrackSelectionFactory A factory for adaptive video {@link TrackSelection}s,
-   *     or null if the selection helper should not support adaptive video.
+   * @param adaptiveTrackSelectionFactory A factory for adaptive {@link TrackSelection}s, or null
+   *     if the selection helper should not support adaptive tracks.
    */
   public TrackSelectionHelper(MappingTrackSelector selector,
-      TrackSelection.Factory adaptiveVideoTrackSelectionFactory) {
+      TrackSelection.Factory adaptiveTrackSelectionFactory) {
     this.selector = selector;
-    this.adaptiveVideoTrackSelectionFactory = adaptiveVideoTrackSelectionFactory;
+    this.adaptiveTrackSelectionFactory = adaptiveTrackSelectionFactory;
   }
 
   /**
@@ -92,7 +92,7 @@ import java.util.Locale;
     trackGroups = trackInfo.getTrackGroups(rendererIndex);
     trackGroupsAdaptive = new boolean[trackGroups.length];
     for (int i = 0; i < trackGroups.length; i++) {
-      trackGroupsAdaptive[i] = adaptiveVideoTrackSelectionFactory != null
+      trackGroupsAdaptive[i] = adaptiveTrackSelectionFactory != null
           && trackInfo.getAdaptiveSupport(rendererIndex, i, false)
               != RendererCapabilities.ADAPTIVE_NOT_SUPPORTED
           && trackGroups.get(i).length > 1;
@@ -271,7 +271,7 @@ import java.util.Locale;
 
   private void setOverride(int group, int[] tracks, boolean enableRandomAdaptation) {
     TrackSelection.Factory factory = tracks.length == 1 ? FIXED_FACTORY
-        : (enableRandomAdaptation ? RANDOM_FACTORY : adaptiveVideoTrackSelectionFactory);
+        : (enableRandomAdaptation ? RANDOM_FACTORY : adaptiveTrackSelectionFactory);
     override = new SelectionOverride(factory, group, tracks);
   }
 

library/src/main/java/com/google/android/exoplayer2/trackselection/AdaptiveTrackSelection.java

@@ -24,13 +24,13 @@ import com.google.android.exoplayer2.upstream.BandwidthMeter;
 import java.util.List;
 
 /**
- * A bandwidth based adaptive {@link TrackSelection} for video, whose selected track is updated to
- * be the one of highest quality given the current network conditions and the state of the buffer.
+ * A bandwidth based adaptive {@link TrackSelection}, whose selected track is updated to be the one
+ * of highest quality given the current network conditions and the state of the buffer.
  */
-public class AdaptiveVideoTrackSelection extends BaseTrackSelection {
+public class AdaptiveTrackSelection extends BaseTrackSelection {
 
   /**
-   * Factory for {@link AdaptiveVideoTrackSelection} instances.
+   * Factory for {@link AdaptiveTrackSelection} instances.
    */
   public static final class Factory implements TrackSelection.Factory {
 
@@ -79,8 +79,8 @@ public class AdaptiveVideoTrackSelection extends BaseTrackSelection {
     }
 
     @Override
-    public AdaptiveVideoTrackSelection createTrackSelection(TrackGroup group, int... tracks) {
-      return new AdaptiveVideoTrackSelection(group, tracks, bandwidthMeter, maxInitialBitrate,
+    public AdaptiveTrackSelection createTrackSelection(TrackGroup group, int... tracks) {
+      return new AdaptiveTrackSelection(group, tracks, bandwidthMeter, maxInitialBitrate,
           minDurationForQualityIncreaseMs, maxDurationForQualityDecreaseMs,
           minDurationToRetainAfterDiscardMs, bandwidthFraction);
     }
@@ -104,12 +104,12 @@ public class AdaptiveVideoTrackSelection extends BaseTrackSelection {
   private int reason;
 
   /**
-   * @param group The {@link TrackGroup}. Must not be null.
+   * @param group The {@link TrackGroup}.
    * @param tracks The indices of the selected tracks within the {@link TrackGroup}. Must not be
-   *     null or empty. May be in any order.
+   *     empty. May be in any order.
    * @param bandwidthMeter Provides an estimate of the currently available bandwidth.
    */
-  public AdaptiveVideoTrackSelection(TrackGroup group, int[] tracks,
+  public AdaptiveTrackSelection(TrackGroup group, int[] tracks,
       BandwidthMeter bandwidthMeter) {
     this (group, tracks, bandwidthMeter, DEFAULT_MAX_INITIAL_BITRATE,
         DEFAULT_MIN_DURATION_FOR_QUALITY_INCREASE_MS,
@@ -118,9 +118,9 @@ public class AdaptiveVideoTrackSelection extends BaseTrackSelection {
   }
 
   /**
-   * @param group The {@link TrackGroup}. Must not be null.
+   * @param group The {@link TrackGroup}.
    * @param tracks The indices of the selected tracks within the {@link TrackGroup}. Must not be
-   *     null or empty. May be in any order.
+   *     empty. May be in any order.
    * @param bandwidthMeter Provides an estimate of the currently available bandwidth.
    * @param maxInitialBitrate The maximum bitrate in bits per second that should be assumed when a
    *     bandwidth estimate is unavailable.
@@ -136,7 +136,7 @@ public class AdaptiveVideoTrackSelection extends BaseTrackSelection {
    *     consider available for use. Setting to a value less than 1 is recommended to account
    *     for inaccuracies in the bandwidth estimator.
    */
-  public AdaptiveVideoTrackSelection(TrackGroup group, int[] tracks, BandwidthMeter bandwidthMeter,
+  public AdaptiveTrackSelection(TrackGroup group, int[] tracks, BandwidthMeter bandwidthMeter,
       int maxInitialBitrate, long minDurationForQualityIncreaseMs,
       long maxDurationForQualityDecreaseMs, long minDurationToRetainAfterDiscardMs,
       float bandwidthFraction) {
@@ -208,15 +208,18 @@ public class AdaptiveVideoTrackSelection extends BaseTrackSelection {
     }
     int idealSelectedIndex = determineIdealSelectedIndex(SystemClock.elapsedRealtime());
     Format idealFormat = getFormat(idealSelectedIndex);
-    // Discard from the first SD chunk beyond minDurationToRetainAfterDiscardUs whose resolution and
-    // bitrate are both lower than the ideal track.
+    // If the chunks contain video, discard from the first SD chunk beyond
+    // minDurationToRetainAfterDiscardUs whose resolution and bitrate are both lower than the ideal
+    // track.
     for (int i = 0; i < queueSize; i++) {
       MediaChunk chunk = queue.get(i);
+      Format format = chunk.trackFormat;
       long durationBeforeThisChunkUs = chunk.startTimeUs - playbackPositionUs;
       if (durationBeforeThisChunkUs >= minDurationToRetainAfterDiscardUs
-          && chunk.trackFormat.bitrate < idealFormat.bitrate
-          && chunk.trackFormat.height < idealFormat.height
-          && chunk.trackFormat.height < 720 && chunk.trackFormat.width < 1280) {
+          && format.bitrate < idealFormat.bitrate
+          && format.height != Format.NO_VALUE && format.height < 720
+          && format.width != Format.NO_VALUE && format.width < 1280
+          && format.height < idealFormat.height) {
         return i;
       }
     }

library/src/main/java/com/google/android/exoplayer2/trackselection/DefaultTrackSelector.java

@@ -432,8 +432,7 @@ public class DefaultTrackSelector extends MappingTrackSelector {
             params.maxVideoHeight, params.maxVideoBitrate, params.allowNonSeamlessAdaptiveness,
             params.allowMixedMimeAdaptiveness, params.viewportWidth, params.viewportHeight,
             params.orientationMayChange, adaptiveVideoTrackSelectionFactory,
-            params.exceedVideoConstraintsIfNecessary,
-            params.exceedRendererCapabilitiesIfNecessary);
+            params.exceedVideoConstraintsIfNecessary, params.exceedRendererCapabilitiesIfNecessary);
       }
     }
 

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

@@ -34,7 +34,7 @@ import com.google.android.exoplayer2.drm.FrameworkMediaCrypto;
 import com.google.android.exoplayer2.playbacktests.util.HostActivity.HostedTest;
 import com.google.android.exoplayer2.source.MediaSource;
 import com.google.android.exoplayer2.source.TrackGroupArray;
-import com.google.android.exoplayer2.trackselection.AdaptiveVideoTrackSelection;
+import com.google.android.exoplayer2.trackselection.AdaptiveTrackSelection;
 import com.google.android.exoplayer2.trackselection.DefaultTrackSelector;
 import com.google.android.exoplayer2.trackselection.MappingTrackSelector;
 import com.google.android.exoplayer2.trackselection.TrackSelectionArray;
@@ -313,7 +313,7 @@ public abstract class ExoHostedTest implements HostedTest, ExoPlayer.EventListen
   @SuppressWarnings("unused")
   protected MappingTrackSelector buildTrackSelector(HostActivity host,
       BandwidthMeter bandwidthMeter) {
-    return new DefaultTrackSelector(new AdaptiveVideoTrackSelection.Factory(bandwidthMeter));
+    return new DefaultTrackSelector(new AdaptiveTrackSelection.Factory(bandwidthMeter));
   }
 
   @SuppressWarnings("unused")