Move SSIM related files to test_util

PiperOrigin-RevId: 543444043

libraries/common/src/main/java/androidx/media3/common/C.java

@@ -644,6 +644,12 @@ public final class C {
   /** Indicates that a buffer should be decoded but not rendered. */
   @UnstableApi public static final int BUFFER_FLAG_DECODE_ONLY = 1 << 31; // 0x80000000
 
+  /** A realtime {@linkplain MediaFormat#KEY_PRIORITY codec priority}. */
+  @UnstableApi public static final int MEDIA_CODEC_PRIORITY_REALTIME = 0;
+
+  /** A non-realtime (as fast as possible) {@linkplain MediaFormat#KEY_PRIORITY codec priority}. */
+  @UnstableApi public static final int MEDIA_CODEC_PRIORITY_NON_REALTIME = 1;
+
   /**
    * Video decoder output modes. Possible modes are {@link #VIDEO_OUTPUT_MODE_NONE}, {@link
    * #VIDEO_OUTPUT_MODE_YUV} and {@link #VIDEO_OUTPUT_MODE_SURFACE_YUV}.

libraries/test_utils/build.gradle

@@ -16,6 +16,10 @@ apply from: "$gradle.ext.androidxMediaSettingsDir/common_library_config.gradle"
 android {
     namespace 'androidx.media3.test.utils'
 
+    sourceSets {
+        test.assets.srcDir '../test_data/src/test/assets/'
+    }
+
     publishing {
         singleVariant('release') {
             withSourcesJar()

libraries/test_utils/src/main/java/androidx/media3/test/utils/MssimCalculator.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package androidx.media3.transformer;
+package androidx.media3.test.utils;
 
 import static java.lang.Math.pow;
 

libraries/test_utils/src/main/java/androidx/media3/test/utils/SsimHelper.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package androidx.media3.transformer;
+package androidx.media3.test.utils;
 
 import static androidx.media3.common.util.Assertions.checkNotNull;
 import static com.google.common.truth.Truth.assertThat;
@@ -24,6 +24,8 @@ import android.content.Context;
 import android.media.Image;
 import android.media.MediaCodec;
 import androidx.annotation.Nullable;
+import androidx.annotation.RequiresApi;
+import androidx.media3.common.util.UnstableApi;
 import java.io.IOException;
 import java.nio.ByteBuffer;
 
@@ -40,6 +42,8 @@ import java.nio.ByteBuffer;
  * <p>SSIM is traditionally computed with the luminance channel (Y), this class uses the luma
  * channel (Y') because the {@linkplain MediaCodec decoder} decodes to luma.
  */
+@UnstableApi
+@RequiresApi(21)
 public final class SsimHelper {
 
   /** The default comparison interval. */

libraries/test_utils/src/main/java/androidx/media3/test/utils/VideoDecodingWrapper.java

@@ -14,12 +14,12 @@
  * limitations under the License.
  */
 
-package androidx.media3.transformer;
+package androidx.media3.test.utils;
 
+import static androidx.media3.common.C.MEDIA_CODEC_PRIORITY_NON_REALTIME;
 import static androidx.media3.common.util.Assertions.checkNotNull;
 import static androidx.media3.common.util.Assertions.checkState;
 import static androidx.media3.common.util.Assertions.checkStateNotNull;
-import static androidx.media3.transformer.AndroidTestUtil.MEDIA_CODEC_PRIORITY_NON_REALTIME;
 import static com.google.common.truth.Truth.assertThat;
 
 import android.content.Context;
@@ -33,14 +33,18 @@ import android.media.MediaExtractor;
 import android.media.MediaFormat;
 import android.os.Handler;
 import androidx.annotation.Nullable;
+import androidx.annotation.RequiresApi;
 import androidx.media3.common.MimeTypes;
 import androidx.media3.common.util.ConditionVariable;
+import androidx.media3.common.util.UnstableApi;
 import androidx.media3.common.util.Util;
 import java.io.IOException;
 import java.nio.ByteBuffer;
 
 /** A wrapper for decoding a video using {@link MediaCodec}. */
-/* package */ final class VideoDecodingWrapper implements AutoCloseable {
+@UnstableApi
+@RequiresApi(21)
+public final class VideoDecodingWrapper implements AutoCloseable {
 
   private static final int IMAGE_AVAILABLE_TIMEOUT_MS = 10_000;
 

libraries/test_utils/src/test/java/androidx/media3/test/utils/MssimCalculatorTest.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package androidx.media3.transformer;
+package androidx.media3.test.utils;
 
 import static androidx.test.core.app.ApplicationProvider.getApplicationContext;
 import static com.google.common.truth.Truth.assertThat;

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

@@ -57,14 +57,6 @@ import org.json.JSONObject;
 public final class AndroidTestUtil {
   private static final String TAG = "AndroidTestUtil";
 
-  /** A realtime {@linkplain MediaFormat#KEY_PRIORITY encoder priority}. */
-  public static final int MEDIA_CODEC_PRIORITY_REALTIME = 0;
-
-  /**
-   * A non-realtime (as fast as possible) {@linkplain MediaFormat#KEY_PRIORITY encoder priority}.
-   */
-  public static final int MEDIA_CODEC_PRIORITY_NON_REALTIME = 1;
-
   /** An {@link Effects} instance that forces video transcoding. */
   public static final Effects FORCE_TRANSCODE_VIDEO_EFFECTS =
       new Effects(

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

@@ -33,6 +33,7 @@ import androidx.media3.common.util.NullableType;
 import androidx.media3.common.util.SystemClock;
 import androidx.media3.common.util.Util;
 import androidx.media3.effect.DebugTraceUtil;
+import androidx.media3.test.utils.SsimHelper;
 import androidx.test.platform.app.InstrumentationRegistry;
 import com.google.common.base.Ascii;
 import com.google.common.collect.ImmutableList;

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

@@ -40,6 +40,7 @@ import androidx.media3.effect.Presentation;
 import androidx.media3.effect.RgbFilter;
 import androidx.media3.effect.ScaleAndRotateTransformation;
 import androidx.media3.test.utils.BitmapPixelTestUtil;
+import androidx.media3.test.utils.VideoDecodingWrapper;
 import androidx.test.core.app.ApplicationProvider;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.common.collect.ImmutableList;

libraries/transformer/src/androidTest/java/androidx/media3/transformer/mh/analysis/EncoderPerformanceAnalysisTest.java

@@ -16,9 +16,9 @@
 
 package androidx.media3.transformer.mh.analysis;
 
+import static androidx.media3.common.C.MEDIA_CODEC_PRIORITY_NON_REALTIME;
+import static androidx.media3.common.C.MEDIA_CODEC_PRIORITY_REALTIME;
 import static androidx.media3.common.util.Assertions.checkNotNull;
-import static androidx.media3.transformer.AndroidTestUtil.MEDIA_CODEC_PRIORITY_NON_REALTIME;
-import static androidx.media3.transformer.AndroidTestUtil.MEDIA_CODEC_PRIORITY_REALTIME;
 import static androidx.media3.transformer.AndroidTestUtil.recordTestSkipped;
 
 import android.content.Context;