diff --git a/library/transformer/src/androidTest/java/com/google/android/exoplayer2/transformer/AndroidTestUtil.java b/library/transformer/src/androidTest/java/com/google/android/exoplayer2/transformer/AndroidTestUtil.java
index 9be6f8cc9c..206687d246 100644
--- a/library/transformer/src/androidTest/java/com/google/android/exoplayer2/transformer/AndroidTestUtil.java
+++ b/library/transformer/src/androidTest/java/com/google/android/exoplayer2/transformer/AndroidTestUtil.java
@@ -19,9 +19,11 @@ import static com.google.android.exoplayer2.util.Assertions.checkState;
 
 import android.content.Context;
 import android.os.Build;
+import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.util.Log;
 import java.io.File;
 import java.io.IOException;
+import java.util.List;
 import org.json.JSONException;
 import org.json.JSONObject;
 
@@ -48,6 +50,34 @@ public final class AndroidTestUtil {
     return file;
   }
 
+  /**
+   * A {@link Codec.EncoderFactory} that forces encoding, wrapping {@link DefaultEncoderFactory}.
+   */
+  public static final Codec.EncoderFactory FORCE_ENCODE_ENCODER_FACTORY =
+      new Codec.EncoderFactory() {
+        @Override
+        public Codec createForAudioEncoding(Format format, List<String> allowedMimeTypes)
+            throws TransformationException {
+          return Codec.EncoderFactory.DEFAULT.createForAudioEncoding(format, allowedMimeTypes);
+        }
+
+        @Override
+        public Codec createForVideoEncoding(Format format, List<String> allowedMimeTypes)
+            throws TransformationException {
+          return Codec.EncoderFactory.DEFAULT.createForVideoEncoding(format, allowedMimeTypes);
+        }
+
+        @Override
+        public boolean audioNeedsEncoding() {
+          return true;
+        }
+
+        @Override
+        public boolean videoNeedsEncoding() {
+          return true;
+        }
+      };
+
   /**
    * Returns a {@link JSONObject} containing device specific details from {@link Build}, including
    * manufacturer, model, SDK version and build fingerprint.
diff --git a/library/transformer/src/androidTest/java/com/google/android/exoplayer2/transformer/mh/TransformationTest.java b/library/transformer/src/androidTest/java/com/google/android/exoplayer2/transformer/mh/TransformationTest.java
index 1ddc6ad724..51ea018124 100644
--- a/library/transformer/src/androidTest/java/com/google/android/exoplayer2/transformer/mh/TransformationTest.java
+++ b/library/transformer/src/androidTest/java/com/google/android/exoplayer2/transformer/mh/TransformationTest.java
@@ -23,18 +23,15 @@ import static com.google.android.exoplayer2.transformer.AndroidTestUtil.MP4_REMO
 import android.content.Context;
 import androidx.test.core.app.ApplicationProvider;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
-import com.google.android.exoplayer2.Format;
-import com.google.android.exoplayer2.transformer.Codec;
+import com.google.android.exoplayer2.transformer.AndroidTestUtil;
 import com.google.android.exoplayer2.transformer.DefaultEncoderFactory;
 import com.google.android.exoplayer2.transformer.EncoderSelector;
-import com.google.android.exoplayer2.transformer.TransformationException;
 import com.google.android.exoplayer2.transformer.TransformationRequest;
 import com.google.android.exoplayer2.transformer.Transformer;
 import com.google.android.exoplayer2.transformer.TransformerAndroidTestRunner;
 import com.google.android.exoplayer2.transformer.VideoEncoderSettings;
 import com.google.android.exoplayer2.util.Log;
 import com.google.android.exoplayer2.util.Util;
-import java.util.List;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
@@ -61,32 +58,7 @@ public class TransformationTest {
     Context context = ApplicationProvider.getApplicationContext();
     Transformer transformer =
         new Transformer.Builder(context)
-            .setEncoderFactory(
-                new Codec.EncoderFactory() {
-                  @Override
-                  public Codec createForAudioEncoding(Format format, List<String> allowedMimeTypes)
-                      throws TransformationException {
-                    return Codec.EncoderFactory.DEFAULT.createForAudioEncoding(
-                        format, allowedMimeTypes);
-                  }
-
-                  @Override
-                  public Codec createForVideoEncoding(Format format, List<String> allowedMimeTypes)
-                      throws TransformationException {
-                    return Codec.EncoderFactory.DEFAULT.createForVideoEncoding(
-                        format, allowedMimeTypes);
-                  }
-
-                  @Override
-                  public boolean audioNeedsEncoding() {
-                    return true;
-                  }
-
-                  @Override
-                  public boolean videoNeedsEncoding() {
-                    return true;
-                  }
-                })
+            .setEncoderFactory(AndroidTestUtil.FORCE_ENCODE_ENCODER_FACTORY)
             .build();
     new TransformerAndroidTestRunner.Builder(context, transformer)
         .setCalculateSsim(true)