Default viewport constraints to match primary display

PiperOrigin-RevId: 260479923

RELEASENOTES.md

@@ -2,6 +2,8 @@
 
 ### dev-v2 (not yet released) ###
 
+* Update `DefaultTrackSelector` to apply a viewport constraint for the default
+  display by default.
 * Add `PlaybackStatsListener` to collect `PlaybackStats` for playbacks analysis
   and analytics reporting (TODO: link to developer guide page/blog post).
 * Add basic DRM support to the Cast demo app.

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

@@ -21,13 +21,11 @@ import androidx.annotation.Nullable;
 import android.view.KeyEvent;
 import android.view.View;
 import com.google.android.exoplayer2.C;
-import com.google.android.exoplayer2.DefaultRenderersFactory;
 import com.google.android.exoplayer2.ExoPlayerFactory;
 import com.google.android.exoplayer2.Player;
 import com.google.android.exoplayer2.Player.DiscontinuityReason;
 import com.google.android.exoplayer2.Player.EventListener;
 import com.google.android.exoplayer2.Player.TimelineChangeReason;
-import com.google.android.exoplayer2.RenderersFactory;
 import com.google.android.exoplayer2.SimpleExoPlayer;
 import com.google.android.exoplayer2.Timeline;
 import com.google.android.exoplayer2.Timeline.Period;
@@ -40,7 +38,6 @@ import com.google.android.exoplayer2.source.ProgressiveMediaSource;
 import com.google.android.exoplayer2.source.dash.DashMediaSource;
 import com.google.android.exoplayer2.source.hls.HlsMediaSource;
 import com.google.android.exoplayer2.source.smoothstreaming.SsMediaSource;
-import com.google.android.exoplayer2.trackselection.DefaultTrackSelector;
 import com.google.android.exoplayer2.ui.PlayerControlView;
 import com.google.android.exoplayer2.ui.PlayerView;
 import com.google.android.exoplayer2.upstream.DefaultHttpDataSourceFactory;
@@ -99,9 +96,7 @@ import org.json.JSONObject;
     currentItemIndex = C.INDEX_UNSET;
     concatenatingMediaSource = new ConcatenatingMediaSource();
 
-    DefaultTrackSelector trackSelector = new DefaultTrackSelector();
-    RenderersFactory renderersFactory = new DefaultRenderersFactory(context);
-    exoPlayer = ExoPlayerFactory.newSimpleInstance(context, renderersFactory, trackSelector);
+    exoPlayer = ExoPlayerFactory.newSimpleInstance(context);
     exoPlayer.addListener(this);
     localPlayerView.setPlayer(exoPlayer);
 

demos/gvr/src/main/java/com/google/android/exoplayer2/gvrdemo/PlayerActivity.java

@@ -35,7 +35,6 @@ import com.google.android.exoplayer2.source.TrackGroupArray;
 import com.google.android.exoplayer2.source.dash.DashMediaSource;
 import com.google.android.exoplayer2.source.hls.HlsMediaSource;
 import com.google.android.exoplayer2.source.smoothstreaming.SsMediaSource;
-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.TrackSelectionArray;
@@ -135,7 +134,7 @@ public class PlayerActivity extends GvrPlayerActivity implements PlaybackPrepare
 
       DefaultRenderersFactory renderersFactory = new DefaultRenderersFactory(this);
 
-      trackSelector = new DefaultTrackSelector(new AdaptiveTrackSelection.Factory());
+      trackSelector = new DefaultTrackSelector(/* context= */ this);
       lastSeenTrackGroupArray = null;
 
       player =

demos/main/src/main/java/com/google/android/exoplayer2/demo/DownloadTracker.java

@@ -30,6 +30,7 @@ import com.google.android.exoplayer2.offline.DownloadIndex;
 import com.google.android.exoplayer2.offline.DownloadManager;
 import com.google.android.exoplayer2.offline.DownloadRequest;
 import com.google.android.exoplayer2.offline.DownloadService;
+import com.google.android.exoplayer2.trackselection.DefaultTrackSelector;
 import com.google.android.exoplayer2.trackselection.MappingTrackSelector.MappedTrackInfo;
 import com.google.android.exoplayer2.upstream.DataSource;
 import com.google.android.exoplayer2.util.Log;
@@ -55,6 +56,7 @@ public class DownloadTracker {
   private final CopyOnWriteArraySet<Listener> listeners;
   private final HashMap<Uri, Download> downloads;
   private final DownloadIndex downloadIndex;
+  private final DefaultTrackSelector.Parameters trackSelectorParameters;
 
   @Nullable private StartDownloadDialogHelper startDownloadDialogHelper;
 
@@ -65,6 +67,7 @@ public class DownloadTracker {
     listeners = new CopyOnWriteArraySet<>();
     downloads = new HashMap<>();
     downloadIndex = downloadManager.getDownloadIndex();
+    trackSelectorParameters = DownloadHelper.getDefaultTrackSelectorParameters(context);
     downloadManager.addListener(new DownloadManagerListener());
     loadDownloads();
   }
@@ -123,13 +126,13 @@ public class DownloadTracker {
     int type = Util.inferContentType(uri, extension);
     switch (type) {
       case C.TYPE_DASH:
-        return DownloadHelper.forDash(uri, dataSourceFactory, renderersFactory);
+        return DownloadHelper.forDash(context, uri, dataSourceFactory, renderersFactory);
       case C.TYPE_SS:
-        return DownloadHelper.forSmoothStreaming(uri, dataSourceFactory, renderersFactory);
+        return DownloadHelper.forSmoothStreaming(context, uri, dataSourceFactory, renderersFactory);
       case C.TYPE_HLS:
-        return DownloadHelper.forHls(uri, dataSourceFactory, renderersFactory);
+        return DownloadHelper.forHls(context, uri, dataSourceFactory, renderersFactory);
       case C.TYPE_OTHER:
-        return DownloadHelper.forProgressive(uri);
+        return DownloadHelper.forProgressive(context, uri);
       default:
         throw new IllegalStateException("Unsupported type: " + type);
     }
@@ -202,7 +205,7 @@ public class DownloadTracker {
           TrackSelectionDialog.createForMappedTrackInfoAndParameters(
               /* titleId= */ R.string.exo_download_description,
               mappedTrackInfo,
-              /* initialParameters= */ DownloadHelper.DEFAULT_TRACK_SELECTOR_PARAMETERS,
+              trackSelectorParameters,
               /* allowAdaptiveSelections =*/ false,
               /* allowMultipleOverrides= */ true,
               /* onClickListener= */ this,
@@ -212,9 +215,7 @@ public class DownloadTracker {
 
     @Override
     public void onPrepareError(DownloadHelper helper, IOException e) {
-      Toast.makeText(
-              context.getApplicationContext(), R.string.download_start_error, Toast.LENGTH_LONG)
-          .show();
+      Toast.makeText(context, R.string.download_start_error, Toast.LENGTH_LONG).show();
       Log.e(TAG, "Failed to start download", e);
     }
 
@@ -229,7 +230,7 @@ public class DownloadTracker {
             downloadHelper.addTrackSelectionForSingleRenderer(
                 periodIndex,
                 /* rendererIndex= */ i,
-                DownloadHelper.DEFAULT_TRACK_SELECTOR_PARAMETERS,
+                trackSelectorParameters,
                 trackSelectionDialog.getOverrides(/* rendererIndex= */ i));
           }
         }

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

@@ -195,7 +195,7 @@ public class PlayerActivity extends AppCompatActivity
       startWindow = savedInstanceState.getInt(KEY_WINDOW);
       startPosition = savedInstanceState.getLong(KEY_POSITION);
     } else {
-      trackSelectorParameters = new DefaultTrackSelector.ParametersBuilder().build();
+      trackSelectorParameters = DefaultTrackSelector.Parameters.getDefaults(/* context= */ this);
       clearStartPosition();
     }
   }
@@ -411,7 +411,7 @@ public class PlayerActivity extends AppCompatActivity
       RenderersFactory renderersFactory =
           ((DemoApplication) getApplication()).buildRenderersFactory(preferExtensionDecoders);
 
-      trackSelector = new DefaultTrackSelector(trackSelectionFactory);
+      trackSelector = new DefaultTrackSelector(/* context= */ this, trackSelectionFactory);
       trackSelector.setParameters(trackSelectorParameters);
       lastSeenTrackGroupArray = null;
 

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

@@ -82,7 +82,7 @@ public class FlacPlaybackTest {
     public void run() {
       Looper.prepare();
       LibflacAudioRenderer audioRenderer = new LibflacAudioRenderer();
-      DefaultTrackSelector trackSelector = new DefaultTrackSelector();
+      DefaultTrackSelector trackSelector = new DefaultTrackSelector(context);
       player = ExoPlayerFactory.newInstance(context, new Renderer[] {audioRenderer}, trackSelector);
       player.addListener(this);
       MediaSource mediaSource =

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

@@ -82,7 +82,7 @@ public class OpusPlaybackTest {
     public void run() {
       Looper.prepare();
       LibopusAudioRenderer audioRenderer = new LibopusAudioRenderer();
-      DefaultTrackSelector trackSelector = new DefaultTrackSelector();
+      DefaultTrackSelector trackSelector = new DefaultTrackSelector(context);
       player = ExoPlayerFactory.newInstance(context, new Renderer[] {audioRenderer}, trackSelector);
       player.addListener(this);
       MediaSource mediaSource =

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

@@ -115,7 +115,7 @@ public class VpxPlaybackTest {
     public void run() {
       Looper.prepare();
       LibvpxVideoRenderer videoRenderer = new LibvpxVideoRenderer(0);
-      DefaultTrackSelector trackSelector = new DefaultTrackSelector();
+      DefaultTrackSelector trackSelector = new DefaultTrackSelector(context);
       player = ExoPlayerFactory.newInstance(context, new Renderer[] {videoRenderer}, trackSelector);
       player.addListener(this);
       MediaSource mediaSource =

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

@@ -102,7 +102,7 @@ public final class ExoPlayerFactory {
    * @param context A {@link Context}.
    */
   public static SimpleExoPlayer newSimpleInstance(Context context) {
-    return newSimpleInstance(context, new DefaultTrackSelector());
+    return newSimpleInstance(context, new DefaultTrackSelector(context));
   }
 
   /**

library/core/src/main/java/com/google/android/exoplayer2/offline/DownloadHelper.java

@@ -15,6 +15,7 @@
  */
 package com.google.android.exoplayer2.offline;
 
+import android.content.Context;
 import android.net.Uri;
 import android.os.Handler;
 import android.os.HandlerThread;
@@ -82,12 +83,25 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
  */
 public final class DownloadHelper {
 
+  /** Default track selection parameters for downloading, but without any viewport constraints. */
+  public static final Parameters DEFAULT_TRACK_SELECTOR_PARAMETERS_WITHOUT_VIEWPORT =
+      Parameters.DEFAULT_WITHOUT_VIEWPORT.buildUpon().setForceHighestSupportedBitrate(true).build();
+
   /**
-   * The default parameters used for track selection for downloading. This default selects the
-   * highest bitrate audio and video tracks which are supported by the renderers.
+   * @deprecated This instance does not have viewport constraints configured for the primary
+   *     display. Use {@link #getDefaultTrackSelectorParameters(Context)} instead.
    */
+  @Deprecated
   public static final DefaultTrackSelector.Parameters DEFAULT_TRACK_SELECTOR_PARAMETERS =
-      new DefaultTrackSelector.ParametersBuilder().setForceHighestSupportedBitrate(true).build();
+      DEFAULT_TRACK_SELECTOR_PARAMETERS_WITHOUT_VIEWPORT;
+
+  /** Returns the default parameters used for track selection for downloading. */
+  public static DefaultTrackSelector.Parameters getDefaultTrackSelectorParameters(Context context) {
+    return Parameters.getDefaults(context)
+        .buildUpon()
+        .setForceHighestSupportedBitrate(true)
+        .build();
+  }
 
   /** A callback to be notified when the {@link DownloadHelper} is prepared. */
   public interface Callback {
@@ -120,36 +134,70 @@ public final class DownloadHelper {
   private static final Constructor<? extends MediaSourceFactory> HLS_FACTORY_CONSTRUCTOR =
       getConstructor("com.google.android.exoplayer2.source.hls.HlsMediaSource$Factory");
 
+  /** @deprecated Use {@link #forProgressive(Context, Uri)} */
+  @Deprecated
+  @SuppressWarnings("deprecation")
+  public static DownloadHelper forProgressive(Uri uri) {
+    return forProgressive(uri, /* cacheKey= */ null);
+  }
+
   /**
    * Creates a {@link DownloadHelper} for progressive streams.
    *
+   * @param context Any {@link Context}.
    * @param uri A stream {@link Uri}.
    * @return A {@link DownloadHelper} for progressive streams.
    */
-  public static DownloadHelper forProgressive(Uri uri) {
-    return forProgressive(uri, /* cacheKey= */ null);
+  public static DownloadHelper forProgressive(Context context, Uri uri) {
+    return forProgressive(context, uri, /* cacheKey= */ null);
+  }
+
+  /** @deprecated Use {@link #forProgressive(Context, Uri, String)} */
+  @Deprecated
+  public static DownloadHelper forProgressive(Uri uri, @Nullable String cacheKey) {
+    return new DownloadHelper(
+        DownloadRequest.TYPE_PROGRESSIVE,
+        uri,
+        cacheKey,
+        /* mediaSource= */ null,
+        DEFAULT_TRACK_SELECTOR_PARAMETERS_WITHOUT_VIEWPORT,
+        /* rendererCapabilities= */ new RendererCapabilities[0]);
   }
 
   /**
    * Creates a {@link DownloadHelper} for progressive streams.
    *
+   * @param context Any {@link Context}.
    * @param uri A stream {@link Uri}.
    * @param cacheKey An optional cache key.
    * @return A {@link DownloadHelper} for progressive streams.
    */
-  public static DownloadHelper forProgressive(Uri uri, @Nullable String cacheKey) {
+  public static DownloadHelper forProgressive(Context context, Uri uri, @Nullable String cacheKey) {
     return new DownloadHelper(
         DownloadRequest.TYPE_PROGRESSIVE,
         uri,
         cacheKey,
         /* mediaSource= */ null,
-        DEFAULT_TRACK_SELECTOR_PARAMETERS,
+        getDefaultTrackSelectorParameters(context),
         /* rendererCapabilities= */ new RendererCapabilities[0]);
   }
 
+  /** @deprecated Use {@link #forDash(Context, Uri, Factory, RenderersFactory)} */
+  @Deprecated
+  public static DownloadHelper forDash(
+      Uri uri, DataSource.Factory dataSourceFactory, RenderersFactory renderersFactory) {
+    return forDash(
+        uri,
+        dataSourceFactory,
+        renderersFactory,
+        /* drmSessionManager= */ null,
+        DEFAULT_TRACK_SELECTOR_PARAMETERS_WITHOUT_VIEWPORT);
+  }
+
   /**
    * Creates a {@link DownloadHelper} for DASH streams.
    *
+   * @param context Any {@link Context}.
    * @param uri A manifest {@link Uri}.
    * @param dataSourceFactory A {@link DataSource.Factory} used to load the manifest.
    * @param renderersFactory A {@link RenderersFactory} creating the renderers for which tracks are
@@ -158,13 +206,16 @@ public final class DownloadHelper {
    * @throws IllegalStateException If the DASH module is missing.
    */
   public static DownloadHelper forDash(
-      Uri uri, DataSource.Factory dataSourceFactory, RenderersFactory renderersFactory) {
+      Context context,
+      Uri uri,
+      DataSource.Factory dataSourceFactory,
+      RenderersFactory renderersFactory) {
     return forDash(
         uri,
         dataSourceFactory,
         renderersFactory,
         /* drmSessionManager= */ null,
-        DEFAULT_TRACK_SELECTOR_PARAMETERS);
+        getDefaultTrackSelectorParameters(context));
   }
 
   /**
@@ -197,9 +248,22 @@ public final class DownloadHelper {
         Util.getRendererCapabilities(renderersFactory, drmSessionManager));
   }
 
+  /** @deprecated Use {@link #forHls(Context, Uri, Factory, RenderersFactory)} */
+  @Deprecated
+  public static DownloadHelper forHls(
+      Uri uri, DataSource.Factory dataSourceFactory, RenderersFactory renderersFactory) {
+    return forHls(
+        uri,
+        dataSourceFactory,
+        renderersFactory,
+        /* drmSessionManager= */ null,
+        DEFAULT_TRACK_SELECTOR_PARAMETERS_WITHOUT_VIEWPORT);
+  }
+
   /**
    * Creates a {@link DownloadHelper} for HLS streams.
    *
+   * @param context Any {@link Context}.
    * @param uri A playlist {@link Uri}.
    * @param dataSourceFactory A {@link DataSource.Factory} used to load the playlist.
    * @param renderersFactory A {@link RenderersFactory} creating the renderers for which tracks are
@@ -208,13 +272,16 @@ public final class DownloadHelper {
    * @throws IllegalStateException If the HLS module is missing.
    */
   public static DownloadHelper forHls(
-      Uri uri, DataSource.Factory dataSourceFactory, RenderersFactory renderersFactory) {
+      Context context,
+      Uri uri,
+      DataSource.Factory dataSourceFactory,
+      RenderersFactory renderersFactory) {
     return forHls(
         uri,
         dataSourceFactory,
         renderersFactory,
         /* drmSessionManager= */ null,
-        DEFAULT_TRACK_SELECTOR_PARAMETERS);
+        getDefaultTrackSelectorParameters(context));
   }
 
   /**
@@ -247,9 +314,22 @@ public final class DownloadHelper {
         Util.getRendererCapabilities(renderersFactory, drmSessionManager));
   }
 
+  /** @deprecated Use {@link #forSmoothStreaming(Context, Uri, Factory, RenderersFactory)} */
+  @Deprecated
+  public static DownloadHelper forSmoothStreaming(
+      Uri uri, DataSource.Factory dataSourceFactory, RenderersFactory renderersFactory) {
+    return forSmoothStreaming(
+        uri,
+        dataSourceFactory,
+        renderersFactory,
+        /* drmSessionManager= */ null,
+        DEFAULT_TRACK_SELECTOR_PARAMETERS_WITHOUT_VIEWPORT);
+  }
+
   /**
    * Creates a {@link DownloadHelper} for SmoothStreaming streams.
    *
+   * @param context Any {@link Context}.
    * @param uri A manifest {@link Uri}.
    * @param dataSourceFactory A {@link DataSource.Factory} used to load the manifest.
    * @param renderersFactory A {@link RenderersFactory} creating the renderers for which tracks are
@@ -258,13 +338,16 @@ public final class DownloadHelper {
    * @throws IllegalStateException If the SmoothStreaming module is missing.
    */
   public static DownloadHelper forSmoothStreaming(
-      Uri uri, DataSource.Factory dataSourceFactory, RenderersFactory renderersFactory) {
+      Context context,
+      Uri uri,
+      DataSource.Factory dataSourceFactory,
+      RenderersFactory renderersFactory) {
     return forSmoothStreaming(
         uri,
         dataSourceFactory,
         renderersFactory,
         /* drmSessionManager= */ null,
-        DEFAULT_TRACK_SELECTOR_PARAMETERS);
+        getDefaultTrackSelectorParameters(context));
   }
 
   /**
@@ -370,10 +453,10 @@ public final class DownloadHelper {
     this.uri = uri;
     this.cacheKey = cacheKey;
     this.mediaSource = mediaSource;
-    this.trackSelector = new DefaultTrackSelector(new DownloadTrackSelection.Factory());
+    this.trackSelector =
+        new DefaultTrackSelector(trackSelectorParameters, new DownloadTrackSelection.Factory());
     this.rendererCapabilities = rendererCapabilities;
     this.scratchSet = new SparseIntArray();
-    trackSelector.setParameters(trackSelectorParameters);
     trackSelector.init(/* listener= */ () -> {}, new DummyBandwidthMeter());
     callbackHandler = new Handler(Util.getLooper());
     window = new Timeline.Window();

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

@@ -186,9 +186,22 @@ public class DefaultTrackSelector extends MappingTrackSelector {
     private final SparseArray<Map<TrackGroupArray, SelectionOverride>> selectionOverrides;
     private final SparseBooleanArray rendererDisabledFlags;
 
-    /** Creates a builder with default initial values. */
+    /**
+     * @deprecated Initial viewport constraints will not be set based on the primary display when
+     *     using this constructor. Use {@link #ParametersBuilder(Context)} instead.
+     */
+    @Deprecated
     public ParametersBuilder() {
-      this(Parameters.DEFAULT);
+      this(Parameters.DEFAULT_WITHOUT_VIEWPORT);
+    }
+
+    /**
+     * Creates a builder with default initial values.
+     *
+     * @param context Any context.
+     */
+    public ParametersBuilder(Context context) {
+      this(Parameters.getDefaults(context));
     }
 
     /**
@@ -656,8 +669,22 @@ public class DefaultTrackSelector extends MappingTrackSelector {
    */
   public static final class Parameters extends TrackSelectionParameters {
 
-    /** An instance with default values. */
-    public static final Parameters DEFAULT = new Parameters();
+    /** An instance with default values, except without any viewport constraints. */
+    public static final Parameters DEFAULT_WITHOUT_VIEWPORT = new Parameters();
+
+    /**
+     * @deprecated This instance does not have viewport constraints configured for the primary
+     *     display. Use {@link #getDefaults(Context)} instead.
+     */
+    @Deprecated public static final Parameters DEFAULT = DEFAULT_WITHOUT_VIEWPORT;
+
+    /** Returns an instance configured with default values. */
+    public static Parameters getDefaults(Context context) {
+      return DEFAULT_WITHOUT_VIEWPORT
+          .buildUpon()
+          .setViewportSizeToPhysicalDisplaySize(context, /* viewportOrientationMayChange= */ true)
+          .build();
+    }
 
     // Video
     /**
@@ -707,14 +734,14 @@ public class DefaultTrackSelector extends MappingTrackSelector {
     public final boolean allowVideoNonSeamlessAdaptiveness;
     /**
      * Viewport width in pixels. Constrains video track selections for adaptive content so that only
-     * tracks suitable for the viewport are selected. The default value is {@link Integer#MAX_VALUE}
-     * (i.e. no constraint).
+     * tracks suitable for the viewport are selected. The default value is the physical width of the
+     * primary display, in pixels.
      */
     public final int viewportWidth;
     /**
      * Viewport height in pixels. Constrains video track selections for adaptive content so that
-     * only tracks suitable for the viewport are selected. The default value is {@link
-     * Integer#MAX_VALUE} (i.e. no constraint).
+     * only tracks suitable for the viewport are selected. The default value is the physical height
+     * of the primary display, in pixels.
      */
     public final int viewportHeight;
     /**
@@ -1284,13 +1311,16 @@ public class DefaultTrackSelector extends MappingTrackSelector {
 
   private boolean allowMultipleAdaptiveSelections;
 
+  /** @deprecated Use {@link #DefaultTrackSelector(Context)} instead. */
+  @Deprecated
+  @SuppressWarnings("deprecation")
   public DefaultTrackSelector() {
     this(new AdaptiveTrackSelection.Factory());
   }
 
   /**
-   * @deprecated Use {@link #DefaultTrackSelector()} instead. Custom bandwidth meter should be
-   *     directly passed to the player in {@link ExoPlayerFactory}.
+   * @deprecated Use {@link #DefaultTrackSelector(Context)} instead. The bandwidth meter should be
+   *     passed directly to the player in {@link ExoPlayerFactory}.
    */
   @Deprecated
   @SuppressWarnings("deprecation")
@@ -1298,10 +1328,32 @@ public class DefaultTrackSelector extends MappingTrackSelector {
     this(new AdaptiveTrackSelection.Factory(bandwidthMeter));
   }
 
-  /** @param trackSelectionFactory A factory for {@link TrackSelection}s. */
+  /** @deprecated Use {@link #DefaultTrackSelector(Context, TrackSelection.Factory)}. */
+  @Deprecated
   public DefaultTrackSelector(TrackSelection.Factory trackSelectionFactory) {
+    this(Parameters.DEFAULT_WITHOUT_VIEWPORT, trackSelectionFactory);
+  }
+
+  /** @param context Any {@link Context}. */
+  public DefaultTrackSelector(Context context) {
+    this(context, new AdaptiveTrackSelection.Factory());
+  }
+
+  /**
+   * @param context Any {@link Context}.
+   * @param trackSelectionFactory A factory for {@link TrackSelection}s.
+   */
+  public DefaultTrackSelector(Context context, TrackSelection.Factory trackSelectionFactory) {
+    this(Parameters.getDefaults(context), trackSelectionFactory);
+  }
+
+  /**
+   * @param parameters Initial {@link Parameters}.
+   * @param trackSelectionFactory A factory for {@link TrackSelection}s.
+   */
+  public DefaultTrackSelector(Parameters parameters, TrackSelection.Factory trackSelectionFactory) {
     this.trackSelectionFactory = trackSelectionFactory;
-    parametersReference = new AtomicReference<>(Parameters.DEFAULT);
+    parametersReference = new AtomicReference<>(parameters);
   }
 
   /**

library/core/src/test/java/com/google/android/exoplayer2/offline/DownloadHelperTest.java

@@ -19,6 +19,7 @@ import static com.google.common.truth.Truth.assertThat;
 import static org.robolectric.shadows.ShadowBaseLooper.shadowMainLooper;
 
 import android.net.Uri;
+import androidx.test.core.app.ApplicationProvider;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.Format;
@@ -36,7 +37,6 @@ import com.google.android.exoplayer2.testutil.FakeRenderer;
 import com.google.android.exoplayer2.testutil.FakeTimeline;
 import com.google.android.exoplayer2.testutil.FakeTimeline.TimelineWindowDefinition;
 import com.google.android.exoplayer2.trackselection.DefaultTrackSelector;
-import com.google.android.exoplayer2.trackselection.DefaultTrackSelector.ParametersBuilder;
 import com.google.android.exoplayer2.trackselection.MappingTrackSelector.MappedTrackInfo;
 import com.google.android.exoplayer2.trackselection.TrackSelection;
 import com.google.android.exoplayer2.upstream.Allocator;
@@ -113,7 +113,7 @@ public class DownloadHelperTest {
             testUri,
             TEST_CACHE_KEY,
             new TestMediaSource(),
-            DownloadHelper.DEFAULT_TRACK_SELECTOR_PARAMETERS,
+            DownloadHelper.DEFAULT_TRACK_SELECTOR_PARAMETERS_WITHOUT_VIEWPORT,
             Util.getRendererCapabilities(renderersFactory, /* drmSessionManager= */ null));
   }
 
@@ -244,7 +244,7 @@ public class DownloadHelperTest {
       throws Exception {
     prepareDownloadHelper(downloadHelper);
     DefaultTrackSelector.Parameters parameters =
-        new ParametersBuilder()
+        new DefaultTrackSelector.ParametersBuilder(ApplicationProvider.getApplicationContext())
             .setPreferredAudioLanguage("ZH")
             .setPreferredTextLanguage("ZH")
             .setRendererDisabled(/* rendererIndex= */ 2, true)
@@ -281,7 +281,7 @@ public class DownloadHelperTest {
     // Select parameters to require some merging of track groups because the new parameters add
     // all video tracks to initial video single track selection.
     DefaultTrackSelector.Parameters parameters =
-        new ParametersBuilder()
+        new DefaultTrackSelector.ParametersBuilder(ApplicationProvider.getApplicationContext())
             .setPreferredAudioLanguage("ZH")
             .setPreferredTextLanguage("US")
             .build();
@@ -385,7 +385,7 @@ public class DownloadHelperTest {
     // Ensure we have track groups with multiple indices, renderers with multiple track groups and
     // also renderers without any track groups.
     DefaultTrackSelector.Parameters parameters =
-        new ParametersBuilder()
+        new DefaultTrackSelector.ParametersBuilder(ApplicationProvider.getApplicationContext())
             .setPreferredAudioLanguage("ZH")
             .setPreferredTextLanguage("US")
             .build();

library/core/src/test/java/com/google/android/exoplayer2/trackselection/DefaultTrackSelectorTest.java

@@ -27,9 +27,11 @@ import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 import static org.mockito.MockitoAnnotations.initMocks;
 
+import android.content.Context;
 import android.os.Parcel;
 import android.util.SparseArray;
 import android.util.SparseBooleanArray;
+import androidx.test.core.app.ApplicationProvider;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.ExoPlaybackException;
@@ -97,6 +99,7 @@ public final class DefaultTrackSelectorTest {
   @Mock private InvalidationListener invalidationListener;
   @Mock private BandwidthMeter bandwidthMeter;
 
+  private Parameters defaultParameters;
   private DefaultTrackSelector trackSelector;
 
   @BeforeClass
@@ -108,7 +111,9 @@ public final class DefaultTrackSelectorTest {
   public void setUp() {
     initMocks(this);
     when(bandwidthMeter.getBitrateEstimate()).thenReturn(1000000L);
-    trackSelector = new DefaultTrackSelector();
+    Context context = ApplicationProvider.getApplicationContext();
+    defaultParameters = Parameters.getDefaults(context);
+    trackSelector = new DefaultTrackSelector(context);
     trackSelector.init(invalidationListener, bandwidthMeter);
   }
 
@@ -234,7 +239,7 @@ public final class DefaultTrackSelectorTest {
   /** Tests disabling a renderer. */
   @Test
   public void testSelectTracksWithDisabledRenderer() throws ExoPlaybackException {
-    trackSelector.setParameters(Parameters.DEFAULT.buildUpon().setRendererDisabled(1, true));
+    trackSelector.setParameters(defaultParameters.buildUpon().setRendererDisabled(1, true));
     TrackSelectorResult result =
         trackSelector.selectTracks(RENDERER_CAPABILITIES, TRACK_GROUPS, periodId, TIMELINE);
     assertSelections(result, new TrackSelection[] {TRACK_SELECTIONS[0], null});
@@ -271,7 +276,7 @@ public final class DefaultTrackSelectorTest {
   /** Tests disabling a no-sample renderer. */
   @Test
   public void testSelectTracksWithDisabledNoSampleRenderer() throws ExoPlaybackException {
-    trackSelector.setParameters(Parameters.DEFAULT.buildUpon().setRendererDisabled(1, true));
+    trackSelector.setParameters(defaultParameters.buildUpon().setRendererDisabled(1, true));
     TrackSelectorResult result =
         trackSelector.selectTracks(
             RENDERER_CAPABILITIES_WITH_NO_SAMPLE_RENDERER, TRACK_GROUPS, periodId, TIMELINE);
@@ -281,14 +286,13 @@ public final class DefaultTrackSelectorTest {
   }
 
   /**
-   * Tests that track selector will not call
-   * {@link InvalidationListener#onTrackSelectionsInvalidated()} when it's set with default
-   * values of {@link Parameters}.
+   * Tests that track selector will not call {@link
+   * InvalidationListener#onTrackSelectionsInvalidated()} when it's set with default values of
+   * {@link Parameters}.
    */
   @Test
-  public void testSetParameterWithDefaultParametersDoesNotNotifyInvalidationListener()
-      throws Exception {
-    trackSelector.setParameters(Parameters.DEFAULT);
+  public void testSetParameterWithDefaultParametersDoesNotNotifyInvalidationListener() {
+    trackSelector.setParameters(defaultParameters);
     verify(invalidationListener, never()).onTrackSelectionsInvalidated();
   }
 
@@ -297,24 +301,22 @@ public final class DefaultTrackSelectorTest {
    * when it's set with non-default values of {@link Parameters}.
    */
   @Test
-  public void testSetParameterWithNonDefaultParameterNotifyInvalidationListener()
-      throws Exception {
-    Parameters parameters = Parameters.DEFAULT.buildUpon().setPreferredAudioLanguage("eng").build();
-    trackSelector.setParameters(parameters);
+  public void testSetParameterWithNonDefaultParameterNotifyInvalidationListener() {
+    ParametersBuilder builder = defaultParameters.buildUpon().setPreferredAudioLanguage("eng");
+    trackSelector.setParameters(builder);
     verify(invalidationListener).onTrackSelectionsInvalidated();
   }
 
   /**
-   * Tests that track selector will not call
-   * {@link InvalidationListener#onTrackSelectionsInvalidated()} again when it's set with
-   * the same values of {@link Parameters}.
+   * Tests that track selector will not call {@link
+   * InvalidationListener#onTrackSelectionsInvalidated()} again when it's set with the same values
+   * of {@link Parameters}.
    */
   @Test
-  public void testSetParameterWithSameParametersDoesNotNotifyInvalidationListenerAgain()
-      throws Exception {
-    ParametersBuilder builder = Parameters.DEFAULT.buildUpon().setPreferredAudioLanguage("eng");
-    trackSelector.setParameters(builder.build());
-    trackSelector.setParameters(builder.build());
+  public void testSetParameterWithSameParametersDoesNotNotifyInvalidationListenerAgain() {
+    ParametersBuilder builder = defaultParameters.buildUpon().setPreferredAudioLanguage("eng");
+    trackSelector.setParameters(builder);
+    trackSelector.setParameters(builder);
     verify(invalidationListener, times(1)).onTrackSelectionsInvalidated();
   }
 
@@ -426,8 +428,7 @@ public final class DefaultTrackSelectorTest {
             Format.NO_VALUE, 2, 44100, null, null, 0, "eng");
     TrackGroupArray trackGroups = wrapFormats(frAudioFormat, enAudioFormat);
 
-    trackSelector.setParameters(
-        Parameters.DEFAULT.buildUpon().setPreferredAudioLanguage("eng").build());
+    trackSelector.setParameters(defaultParameters.buildUpon().setPreferredAudioLanguage("eng"));
     TrackSelectorResult result =
         trackSelector.selectTracks(
             new RendererCapabilities[] {ALL_AUDIO_FORMAT_SUPPORTED_RENDERER_CAPABILITIES},
@@ -452,8 +453,7 @@ public final class DefaultTrackSelectorTest {
             Format.NO_VALUE, 2, 44100, null, null, 0, "eng");
     TrackGroupArray trackGroups = wrapFormats(frAudioFormat, enAudioFormat);
 
-    trackSelector.setParameters(
-        Parameters.DEFAULT.buildUpon().setPreferredAudioLanguage("eng").build());
+    trackSelector.setParameters(defaultParameters.buildUpon().setPreferredAudioLanguage("eng"));
     TrackSelectorResult result =
         trackSelector.selectTracks(
             new RendererCapabilities[] {ALL_AUDIO_FORMAT_SUPPORTED_RENDERER_CAPABILITIES},
@@ -523,7 +523,7 @@ public final class DefaultTrackSelectorTest {
     TrackGroupArray trackGroups = singleTrackGroup(audioFormat);
 
     trackSelector.setParameters(
-        Parameters.DEFAULT.buildUpon().setExceedRendererCapabilitiesIfNecessary(false).build());
+        defaultParameters.buildUpon().setExceedRendererCapabilitiesIfNecessary(false));
     TrackSelectorResult result =
         trackSelector.selectTracks(
             new RendererCapabilities[] {ALL_AUDIO_FORMAT_EXCEEDED_RENDERER_CAPABILITIES},
@@ -605,8 +605,7 @@ public final class DefaultTrackSelectorTest {
     RendererCapabilities mappedAudioRendererCapabilities =
         new FakeMappedRendererCapabilities(C.TRACK_TYPE_AUDIO, mappedCapabilities);
 
-    trackSelector.setParameters(
-        Parameters.DEFAULT.buildUpon().setPreferredAudioLanguage("eng").build());
+    trackSelector.setParameters(defaultParameters.buildUpon().setPreferredAudioLanguage("eng"));
     TrackSelectorResult result =
         trackSelector.selectTracks(
             new RendererCapabilities[] {mappedAudioRendererCapabilities},
@@ -648,8 +647,7 @@ public final class DefaultTrackSelectorTest {
     RendererCapabilities mappedAudioRendererCapabilities =
         new FakeMappedRendererCapabilities(C.TRACK_TYPE_AUDIO, mappedCapabilities);
 
-    trackSelector.setParameters(
-        Parameters.DEFAULT.buildUpon().setPreferredAudioLanguage("eng").build());
+    trackSelector.setParameters(defaultParameters.buildUpon().setPreferredAudioLanguage("eng"));
     TrackSelectorResult result =
         trackSelector.selectTracks(
             new RendererCapabilities[] {mappedAudioRendererCapabilities},
@@ -983,10 +981,7 @@ public final class DefaultTrackSelectorTest {
     // selected.
     trackGroups = wrapFormats(defaultOnly, noFlag, forcedOnly, forcedDefault);
     trackSelector.setParameters(
-        Parameters.DEFAULT
-            .buildUpon()
-            .setDisabledTextTrackSelectionFlags(C.SELECTION_FLAG_DEFAULT)
-            .build());
+        defaultParameters.buildUpon().setDisabledTextTrackSelectionFlags(C.SELECTION_FLAG_DEFAULT));
     result = trackSelector.selectTracks(textRendererCapabilities, trackGroups, periodId, TIMELINE);
     assertNoSelection(result.selections.get(0));
 
@@ -997,15 +992,14 @@ public final class DefaultTrackSelectorTest {
         trackSelector
             .getParameters()
             .buildUpon()
-            .setDisabledTextTrackSelectionFlags(C.SELECTION_FLAG_DEFAULT | C.SELECTION_FLAG_FORCED)
-            .build());
+            .setDisabledTextTrackSelectionFlags(
+                C.SELECTION_FLAG_DEFAULT | C.SELECTION_FLAG_FORCED));
     result = trackSelector.selectTracks(textRendererCapabilities, trackGroups, periodId, TIMELINE);
     assertNoSelection(result.selections.get(0));
 
     // There is a preferred language, so a language-matching track flagged as default should
     // be selected, and the one without forced flag should be preferred.
-    trackSelector.setParameters(
-        Parameters.DEFAULT.buildUpon().setPreferredTextLanguage("eng").build());
+    trackSelector.setParameters(defaultParameters.buildUpon().setPreferredTextLanguage("eng"));
     result = trackSelector.selectTracks(textRendererCapabilities, trackGroups, periodId, TIMELINE);
     assertFixedSelection(result.selections.get(0), trackGroups, defaultOnly);
 
@@ -1017,8 +1011,7 @@ public final class DefaultTrackSelectorTest {
         trackSelector
             .getParameters()
             .buildUpon()
-            .setDisabledTextTrackSelectionFlags(C.SELECTION_FLAG_DEFAULT)
-            .build());
+            .setDisabledTextTrackSelectionFlags(C.SELECTION_FLAG_DEFAULT));
     result = trackSelector.selectTracks(textRendererCapabilities, trackGroups, periodId, TIMELINE);
     assertFixedSelection(result.selections.get(0), trackGroups, noFlag);
   }
@@ -1100,12 +1093,12 @@ public final class DefaultTrackSelectorTest {
     assertNoSelection(result.selections.get(0));
 
     trackSelector.setParameters(
-        Parameters.DEFAULT.buildUpon().setSelectUndeterminedTextLanguage(true).build());
+        defaultParameters.buildUpon().setSelectUndeterminedTextLanguage(true));
     result = trackSelector.selectTracks(textRendererCapabilites, trackGroups, periodId, TIMELINE);
     assertFixedSelection(result.selections.get(0), trackGroups, undeterminedUnd);
 
-    ParametersBuilder builder = Parameters.DEFAULT.buildUpon().setPreferredTextLanguage("spa");
-    trackSelector.setParameters(builder.build());
+    ParametersBuilder builder = defaultParameters.buildUpon().setPreferredTextLanguage("spa");
+    trackSelector.setParameters(builder);
     result = trackSelector.selectTracks(textRendererCapabilites, trackGroups, periodId, TIMELINE);
     assertFixedSelection(result.selections.get(0), trackGroups, spanish);
 
@@ -1114,7 +1107,7 @@ public final class DefaultTrackSelectorTest {
     result = trackSelector.selectTracks(textRendererCapabilites, trackGroups, periodId, TIMELINE);
     assertNoSelection(result.selections.get(0));
 
-    trackSelector.setParameters(builder.setSelectUndeterminedTextLanguage(true).build());
+    trackSelector.setParameters(builder.setSelectUndeterminedTextLanguage(true));
     result = trackSelector.selectTracks(textRendererCapabilites, trackGroups, periodId, TIMELINE);
     assertFixedSelection(result.selections.get(0), trackGroups, undeterminedUnd);
 
@@ -1158,13 +1151,13 @@ public final class DefaultTrackSelectorTest {
     assertNoSelection(result.selections.get(1));
 
     // Explicit language preference for english. First renderer should be used.
-    trackSelector.setParameters(Parameters.DEFAULT.buildUpon().setPreferredTextLanguage("en"));
+    trackSelector.setParameters(defaultParameters.buildUpon().setPreferredTextLanguage("en"));
     result = trackSelector.selectTracks(rendererCapabilities, trackGroups, periodId, TIMELINE);
     assertFixedSelection(result.selections.get(0), trackGroups, english);
     assertNoSelection(result.selections.get(1));
 
     // Explicit language preference for German. Second renderer should be used.
-    trackSelector.setParameters(Parameters.DEFAULT.buildUpon().setPreferredTextLanguage("de"));
+    trackSelector.setParameters(defaultParameters.buildUpon().setPreferredTextLanguage("de"));
     result = trackSelector.selectTracks(rendererCapabilities, trackGroups, periodId, TIMELINE);
     assertNoSelection(result.selections.get(0));
     assertFixedSelection(result.selections.get(1), trackGroups, german);
@@ -1190,7 +1183,7 @@ public final class DefaultTrackSelectorTest {
     RendererCapabilities mappedAudioRendererCapabilities =
         new FakeMappedRendererCapabilities(C.TRACK_TYPE_AUDIO, mappedCapabilities);
 
-    trackSelector.setParameters(Parameters.DEFAULT.buildUpon().setForceLowestBitrate(true).build());
+    trackSelector.setParameters(defaultParameters.buildUpon().setForceLowestBitrate(true));
     TrackSelectorResult result =
         trackSelector.selectTracks(
             new RendererCapabilities[] {mappedAudioRendererCapabilities},
@@ -1221,7 +1214,7 @@ public final class DefaultTrackSelectorTest {
         new FakeMappedRendererCapabilities(C.TRACK_TYPE_AUDIO, mappedCapabilities);
 
     trackSelector.setParameters(
-        new ParametersBuilder().setForceHighestSupportedBitrate(true).build());
+        defaultParameters.buildUpon().setForceHighestSupportedBitrate(true));
     TrackSelectorResult result =
         trackSelector.selectTracks(
             new RendererCapabilities[] {mappedAudioRendererCapabilities},
@@ -1269,7 +1262,7 @@ public final class DefaultTrackSelectorTest {
 
     // If we explicitly enable mixed sample rate adaptiveness, expect an adaptive selection.
     trackSelector.setParameters(
-        Parameters.DEFAULT.buildUpon().setAllowAudioMixedSampleRateAdaptiveness(true));
+        defaultParameters.buildUpon().setAllowAudioMixedSampleRateAdaptiveness(true));
     result =
         trackSelector.selectTracks(
             new RendererCapabilities[] {AUDIO_CAPABILITIES}, trackGroups, periodId, TIMELINE);
@@ -1301,7 +1294,7 @@ public final class DefaultTrackSelectorTest {
 
     // If we explicitly enable mixed mime type adaptiveness, expect an adaptive selection.
     trackSelector.setParameters(
-        Parameters.DEFAULT.buildUpon().setAllowAudioMixedMimeTypeAdaptiveness(true));
+        defaultParameters.buildUpon().setAllowAudioMixedMimeTypeAdaptiveness(true));
     result =
         trackSelector.selectTracks(
             new RendererCapabilities[] {AUDIO_CAPABILITIES}, trackGroups, periodId, TIMELINE);
@@ -1335,7 +1328,7 @@ public final class DefaultTrackSelectorTest {
 
     // If we constrain the channel count to 4 we expect a fixed selection containing the track with
     // fewer channels.
-    trackSelector.setParameters(Parameters.DEFAULT.buildUpon().setMaxAudioChannelCount(4));
+    trackSelector.setParameters(defaultParameters.buildUpon().setMaxAudioChannelCount(4));
     result =
         trackSelector.selectTracks(
             new RendererCapabilities[] {AUDIO_CAPABILITIES}, trackGroups, periodId, TIMELINE);
@@ -1344,7 +1337,7 @@ public final class DefaultTrackSelectorTest {
 
     // If we constrain the channel count to 2 we expect a fixed selection containing the track with
     // fewer channels.
-    trackSelector.setParameters(Parameters.DEFAULT.buildUpon().setMaxAudioChannelCount(2));
+    trackSelector.setParameters(defaultParameters.buildUpon().setMaxAudioChannelCount(2));
     result =
         trackSelector.selectTracks(
             new RendererCapabilities[] {AUDIO_CAPABILITIES}, trackGroups, periodId, TIMELINE);
@@ -1353,7 +1346,7 @@ public final class DefaultTrackSelectorTest {
 
     // If we constrain the channel count to 1 we expect a fixed selection containing the track with
     // fewer channels.
-    trackSelector.setParameters(Parameters.DEFAULT.buildUpon().setMaxAudioChannelCount(1));
+    trackSelector.setParameters(defaultParameters.buildUpon().setMaxAudioChannelCount(1));
     result =
         trackSelector.selectTracks(
             new RendererCapabilities[] {AUDIO_CAPABILITIES}, trackGroups, periodId, TIMELINE);
@@ -1362,7 +1355,7 @@ public final class DefaultTrackSelectorTest {
 
     // If we disable exceeding of constraints we expect no selection.
     trackSelector.setParameters(
-        Parameters.DEFAULT
+        defaultParameters
             .buildUpon()
             .setMaxAudioChannelCount(1)
             .setExceedAudioConstraintsIfNecessary(false));
@@ -1424,13 +1417,13 @@ public final class DefaultTrackSelectorTest {
     assertNoSelection(result.selections.get(1));
 
     // Explicit language preference for english. First renderer should be used.
-    trackSelector.setParameters(Parameters.DEFAULT.buildUpon().setPreferredAudioLanguage("en"));
+    trackSelector.setParameters(defaultParameters.buildUpon().setPreferredAudioLanguage("en"));
     result = trackSelector.selectTracks(rendererCapabilities, trackGroups, periodId, TIMELINE);
     assertFixedSelection(result.selections.get(0), trackGroups, english);
     assertNoSelection(result.selections.get(1));
 
     // Explicit language preference for German. Second renderer should be used.
-    trackSelector.setParameters(Parameters.DEFAULT.buildUpon().setPreferredAudioLanguage("de"));
+    trackSelector.setParameters(defaultParameters.buildUpon().setPreferredAudioLanguage("de"));
     result = trackSelector.selectTracks(rendererCapabilities, trackGroups, periodId, TIMELINE);
     assertNoSelection(result.selections.get(0));
     assertFixedSelection(result.selections.get(1), trackGroups, german);
@@ -1456,7 +1449,7 @@ public final class DefaultTrackSelectorTest {
     // Should do non-seamless adaptiveness by default, so expect an adaptive selection.
     TrackGroupArray trackGroups = singleTrackGroup(buildVideoFormat("0"), buildVideoFormat("1"));
     trackSelector.setParameters(
-        Parameters.DEFAULT.buildUpon().setAllowVideoNonSeamlessAdaptiveness(true));
+        defaultParameters.buildUpon().setAllowVideoNonSeamlessAdaptiveness(true));
     TrackSelectorResult result =
         trackSelector.selectTracks(
             new RendererCapabilities[] {nonSeamlessVideoCapabilities},
@@ -1468,7 +1461,7 @@ public final class DefaultTrackSelectorTest {
 
     // If we explicitly disable non-seamless adaptiveness, expect a fixed selection.
     trackSelector.setParameters(
-        Parameters.DEFAULT.buildUpon().setAllowVideoNonSeamlessAdaptiveness(false));
+        defaultParameters.buildUpon().setAllowVideoNonSeamlessAdaptiveness(false));
     result =
         trackSelector.selectTracks(
             new RendererCapabilities[] {nonSeamlessVideoCapabilities},
@@ -1503,7 +1496,7 @@ public final class DefaultTrackSelectorTest {
 
     // If we explicitly enable mixed mime type adaptiveness, expect an adaptive selection.
     trackSelector.setParameters(
-        Parameters.DEFAULT.buildUpon().setAllowVideoMixedMimeTypeAdaptiveness(true));
+        defaultParameters.buildUpon().setAllowVideoMixedMimeTypeAdaptiveness(true));
     result =
         trackSelector.selectTracks(
             new RendererCapabilities[] {VIDEO_CAPABILITIES}, trackGroups, periodId, TIMELINE);
@@ -1760,13 +1753,13 @@ public final class DefaultTrackSelectorTest {
     }
 
     @Override
-    public int supportsFormat(Format format) throws ExoPlaybackException {
+    public int supportsFormat(Format format) {
       return MimeTypes.getTrackType(format.sampleMimeType) == trackType
           ? (supportValue) : FORMAT_UNSUPPORTED_TYPE;
     }
 
     @Override
-    public int supportsMixedMimeTypeAdaptation() throws ExoPlaybackException {
+    public int supportsMixedMimeTypeAdaptation() {
       return ADAPTIVE_SEAMLESS;
     }
 
@@ -1801,14 +1794,14 @@ public final class DefaultTrackSelectorTest {
     }
 
     @Override
-    public int supportsFormat(Format format) throws ExoPlaybackException {
+    public int supportsFormat(Format format) {
       return format.id != null && formatToCapability.containsKey(format.id)
           ? formatToCapability.get(format.id)
           : FORMAT_UNSUPPORTED_TYPE;
     }
 
     @Override
-    public int supportsMixedMimeTypeAdaptation() throws ExoPlaybackException {
+    public int supportsMixedMimeTypeAdaptation() {
       return ADAPTIVE_SEAMLESS;
     }
 

library/dash/src/test/java/com/google/android/exoplayer2/source/dash/offline/DownloadHelperTest.java

@@ -16,6 +16,7 @@
 package com.google.android.exoplayer2.source.dash.offline;
 
 import android.net.Uri;
+import androidx.test.core.app.ApplicationProvider;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.Renderer;
 import com.google.android.exoplayer2.drm.DrmSessionManager;
@@ -31,6 +32,7 @@ public final class DownloadHelperTest {
   @Test
   public void staticDownloadHelperForDash_doesNotThrow() {
     DownloadHelper.forDash(
+        ApplicationProvider.getApplicationContext(),
         Uri.parse("http://uri"),
         new FakeDataSource.Factory(),
         (handler, videoListener, audioListener, text, metadata, drm) -> new Renderer[0]);
@@ -39,6 +41,6 @@ public final class DownloadHelperTest {
         new FakeDataSource.Factory(),
         (handler, videoListener, audioListener, text, metadata, drm) -> new Renderer[0],
         /* drmSessionManager= */ DrmSessionManager.getDummyDrmSessionManager(),
-        DownloadHelper.DEFAULT_TRACK_SELECTOR_PARAMETERS);
+        DownloadHelper.DEFAULT_TRACK_SELECTOR_PARAMETERS_WITHOUT_VIEWPORT);
   }
 }

library/hls/src/test/java/com/google/android/exoplayer2/source/hls/offline/DownloadHelperTest.java

@@ -16,6 +16,7 @@
 package com.google.android.exoplayer2.source.hls.offline;
 
 import android.net.Uri;
+import androidx.test.core.app.ApplicationProvider;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.Renderer;
 import com.google.android.exoplayer2.offline.DownloadHelper;
@@ -30,6 +31,7 @@ public final class DownloadHelperTest {
   @Test
   public void staticDownloadHelperForHls_doesNotThrow() {
     DownloadHelper.forHls(
+        ApplicationProvider.getApplicationContext(),
         Uri.parse("http://uri"),
         new FakeDataSource.Factory(),
         (handler, videoListener, audioListener, text, metadata, drm) -> new Renderer[0]);
@@ -38,6 +40,6 @@ public final class DownloadHelperTest {
         new FakeDataSource.Factory(),
         (handler, videoListener, audioListener, text, metadata, drm) -> new Renderer[0],
         /* drmSessionManager= */ null,
-        DownloadHelper.DEFAULT_TRACK_SELECTOR_PARAMETERS);
+        DownloadHelper.DEFAULT_TRACK_SELECTOR_PARAMETERS_WITHOUT_VIEWPORT);
   }
 }

library/smoothstreaming/src/test/java/com/google/android/exoplayer2/source/smoothstreaming/offline/DownloadHelperTest.java

@@ -16,6 +16,7 @@
 package com.google.android.exoplayer2.source.smoothstreaming.offline;
 
 import android.net.Uri;
+import androidx.test.core.app.ApplicationProvider;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.Renderer;
 import com.google.android.exoplayer2.offline.DownloadHelper;
@@ -30,6 +31,7 @@ public final class DownloadHelperTest {
   @Test
   public void staticDownloadHelperForSmoothStreaming_doesNotThrow() {
     DownloadHelper.forSmoothStreaming(
+        ApplicationProvider.getApplicationContext(),
         Uri.parse("http://uri"),
         new FakeDataSource.Factory(),
         (handler, videoListener, audioListener, text, metadata, drm) -> new Renderer[0]);
@@ -38,6 +40,6 @@ public final class DownloadHelperTest {
         new FakeDataSource.Factory(),
         (handler, videoListener, audioListener, text, metadata, drm) -> new Renderer[0],
         /* drmSessionManager= */ null,
-        DownloadHelper.DEFAULT_TRACK_SELECTOR_PARAMETERS);
+        DownloadHelper.DEFAULT_TRACK_SELECTOR_PARAMETERS_WITHOUT_VIEWPORT);
   }
 }

playbacktests/src/androidTest/java/com/google/android/exoplayer2/playbacktests/gts/DashTestRunner.java

@@ -24,7 +24,6 @@ import android.net.Uri;
 import android.view.Surface;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.DefaultLoadControl;
-import com.google.android.exoplayer2.ExoPlaybackException;
 import com.google.android.exoplayer2.ExoPlayerFactory;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.RendererCapabilities;
@@ -385,8 +384,7 @@ public final class DashTestRunner {
         MappedTrackInfo mappedTrackInfo,
         int[][][] rendererFormatSupports,
         int[] rendererMixedMimeTypeAdaptationSupports,
-        Parameters parameters)
-        throws ExoPlaybackException {
+        Parameters parameters) {
       Assertions.checkState(
           mappedTrackInfo.getRendererType(VIDEO_RENDERER_INDEX) == C.TRACK_TYPE_VIDEO);
       Assertions.checkState(

testutils/src/main/java/com/google/android/exoplayer2/testutil/ExoHostedTest.java

@@ -37,7 +37,6 @@ import com.google.android.exoplayer2.drm.DrmSessionManager;
 import com.google.android.exoplayer2.drm.FrameworkMediaCrypto;
 import com.google.android.exoplayer2.source.MediaSource;
 import com.google.android.exoplayer2.testutil.HostActivity.HostedTest;
-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.util.Clock;
@@ -238,7 +237,7 @@ public abstract class ExoHostedTest implements AnalyticsListener, HostedTest {
   }
 
   protected DefaultTrackSelector buildTrackSelector(HostActivity host) {
-    return new DefaultTrackSelector(new AdaptiveTrackSelection.Factory());
+    return new DefaultTrackSelector(host);
   }
 
   protected SimpleExoPlayer buildExoPlayer(

testutils/src/main/java/com/google/android/exoplayer2/testutil/ExoPlayerTestRunner.java

@@ -284,7 +284,7 @@ public final class ExoPlayerTestRunner implements Player.EventListener, ActionSc
         supportedFormats = new Format[] {VIDEO_FORMAT};
       }
       if (trackSelector == null) {
-        trackSelector = new DefaultTrackSelector();
+        trackSelector = new DefaultTrackSelector(context);
       }
       if (bandwidthMeter == null) {
         bandwidthMeter = new DefaultBandwidthMeter.Builder(context).build();