diff --git a/demos/main/src/main/java/com/google/android/exoplayer2/demo/PlayerActivity.java b/demos/main/src/main/java/com/google/android/exoplayer2/demo/PlayerActivity.java
index 9c8d254ed1..eaf1829d6a 100644
--- a/demos/main/src/main/java/com/google/android/exoplayer2/demo/PlayerActivity.java
+++ b/demos/main/src/main/java/com/google/android/exoplayer2/demo/PlayerActivity.java
@@ -114,6 +114,7 @@ public class PlayerActivity extends AppCompatActivity
   public static final String DRM_KEY_REQUEST_PROPERTIES_EXTRA = "drm_key_request_properties";
   public static final String DRM_MULTI_SESSION_EXTRA = "drm_multi_session";
   public static final String PREFER_EXTENSION_DECODERS_EXTRA = "prefer_extension_decoders";
+  public static final String TUNNELING = "tunneling";
   public static final String AD_TAG_URI_EXTRA = "ad_tag_uri";
   // For backwards compatibility only.
   public static final String DRM_SCHEME_UUID_EXTRA = "drm_scheme_uuid";
@@ -201,7 +202,13 @@ public class PlayerActivity extends AppCompatActivity
       startWindow = savedInstanceState.getInt(KEY_WINDOW);
       startPosition = savedInstanceState.getLong(KEY_POSITION);
     } else {
-      trackSelectorParameters = DefaultTrackSelector.Parameters.getDefaults(/* context= */ this);
+      DefaultTrackSelector.ParametersBuilder builder =
+          new DefaultTrackSelector.ParametersBuilder(/* context= */ this);
+      boolean tunneling = intent.getBooleanExtra(TUNNELING, false);
+      if (tunneling) {
+        builder.setTunnelingAudioSessionId(C.generateAudioSessionIdV21(/* context= */ this));
+      }
+      trackSelectorParameters = builder.build();
       clearStartPosition();
     }
   }
diff --git a/demos/main/src/main/java/com/google/android/exoplayer2/demo/SampleChooserActivity.java b/demos/main/src/main/java/com/google/android/exoplayer2/demo/SampleChooserActivity.java
index 77a588108f..11ed258c42 100644
--- a/demos/main/src/main/java/com/google/android/exoplayer2/demo/SampleChooserActivity.java
+++ b/demos/main/src/main/java/com/google/android/exoplayer2/demo/SampleChooserActivity.java
@@ -68,6 +68,7 @@ public class SampleChooserActivity extends AppCompatActivity
   private SampleAdapter sampleAdapter;
   private MenuItem preferExtensionDecodersMenuItem;
   private MenuItem randomAbrMenuItem;
+  private MenuItem tunnelingMenuItem;
 
   @Override
   public void onCreate(Bundle savedInstanceState) {
@@ -125,6 +126,7 @@ public class SampleChooserActivity extends AppCompatActivity
     preferExtensionDecodersMenuItem = menu.findItem(R.id.prefer_extension_decoders);
     preferExtensionDecodersMenuItem.setVisible(useExtensionRenderers);
     randomAbrMenuItem = menu.findItem(R.id.random_abr);
+    tunnelingMenuItem = menu.findItem(R.id.tunneling);
     return true;
   }
 
@@ -173,6 +175,7 @@ public class SampleChooserActivity extends AppCompatActivity
             ? PlayerActivity.ABR_ALGORITHM_RANDOM
             : PlayerActivity.ABR_ALGORITHM_DEFAULT;
     intent.putExtra(PlayerActivity.ABR_ALGORITHM_EXTRA, abrAlgorithm);
+    intent.putExtra(PlayerActivity.TUNNELING, isNonNullAndChecked(tunnelingMenuItem));
     sample.addToIntent(intent);
     startActivity(intent);
     return true;
diff --git a/demos/main/src/main/res/menu/sample_chooser_menu.xml b/demos/main/src/main/res/menu/sample_chooser_menu.xml
index 9934e9db95..f95c0b6460 100644
--- a/demos/main/src/main/res/menu/sample_chooser_menu.xml
+++ b/demos/main/src/main/res/menu/sample_chooser_menu.xml
@@ -23,4 +23,8 @@
       android:title="@string/random_abr"
       android:checkable="true"
       app:showAsAction="never"/>
+  <item android:id="@+id/tunneling"
+      android:title="@string/tunneling"
+      android:checkable="true"
+      app:showAsAction="never"/>
 </menu>
diff --git a/demos/main/src/main/res/values/strings.xml b/demos/main/src/main/res/values/strings.xml
index acbc296df5..671303a522 100644
--- a/demos/main/src/main/res/values/strings.xml
+++ b/demos/main/src/main/res/values/strings.xml
@@ -71,4 +71,6 @@
 
   <string name="random_abr">Enable random ABR</string>
 
+  <string name="tunneling">Request multimedia tunneling</string>
+
 </resources>