Move a commonly used encoder factory mode to util.

The encoder factory will be used in other tests.

PiperOrigin-RevId: 438552381

libraries/transformer/src/androidTest/java/androidx/media3/transformer/AndroidTestUtil.java

@@ -19,9 +19,11 @@ import static androidx.media3.common.util.Assertions.checkState;
 
 import android.content.Context;
 import android.os.Build;
+import androidx.media3.common.Format;
 import androidx.media3.common.util.Log;
 import java.io.File;
 import java.io.IOException;
+import java.util.List;
 import org.json.JSONException;
 import org.json.JSONObject;
 
@@ -49,6 +51,34 @@ public final class AndroidTestUtil {
   }
 
   /**
+   * 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.
    */

libraries/transformer/src/androidTest/java/androidx/media3/transformer/mh/TransformationTest.java

@@ -21,20 +21,17 @@ import static androidx.media3.transformer.AndroidTestUtil.MP4_ASSET_WITH_INCREAS
 import static androidx.media3.transformer.AndroidTestUtil.MP4_REMOTE_4K60_PORTRAIT_URI_STRING;
 
 import android.content.Context;
-import androidx.media3.common.Format;
 import androidx.media3.common.util.Log;
 import androidx.media3.common.util.Util;
-import androidx.media3.transformer.Codec;
+import androidx.media3.transformer.AndroidTestUtil;
 import androidx.media3.transformer.DefaultEncoderFactory;
 import androidx.media3.transformer.EncoderSelector;
-import androidx.media3.transformer.TransformationException;
 import androidx.media3.transformer.TransformationRequest;
 import androidx.media3.transformer.Transformer;
 import androidx.media3.transformer.TransformerAndroidTestRunner;
 import androidx.media3.transformer.VideoEncoderSettings;
 import androidx.test.core.app.ApplicationProvider;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
-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)