Test: Add sequence effect test with bt601.

PiperOrigin-RevId: 608377195

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

@@ -88,6 +88,22 @@ public final class AndroidTestUtil {
   // ffprobe -count_frames -select_streams v:0 -show_entries stream=nb_read_frames sample.mp4
   public static final int MP4_ASSET_FRAME_COUNT = 30;
 
+  public static final String BT601_ASSET_URI_STRING = "asset:///media/mp4/bt601.mov";
+  public static final Format BT601_ASSET_FORMAT =
+      new Format.Builder()
+          .setSampleMimeType(VIDEO_H264)
+          .setWidth(640)
+          .setHeight(428)
+          .setFrameRate(29.97f)
+          .setColorInfo(
+              new ColorInfo.Builder()
+                  .setColorSpace(C.COLOR_SPACE_BT601)
+                  .setColorRange(C.COLOR_RANGE_LIMITED)
+                  .setColorTransfer(C.COLOR_TRANSFER_SDR)
+                  .build())
+          .setCodecs("avc1.4D001E")
+          .build();
+
   public static final String MP4_PORTRAIT_ASSET_URI_STRING =
       "asset:///media/mp4/sample_portrait.mp4";
   public static final Format MP4_PORTRAIT_ASSET_FORMAT =

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

@@ -20,6 +20,8 @@ package androidx.media3.transformer;
 import static androidx.media3.common.util.Assertions.checkNotNull;
 import static androidx.media3.common.util.Util.SDK_INT;
 import static androidx.media3.test.utils.BitmapPixelTestUtil.readBitmap;
+import static androidx.media3.transformer.AndroidTestUtil.BT601_ASSET_FORMAT;
+import static androidx.media3.transformer.AndroidTestUtil.BT601_ASSET_URI_STRING;
 import static androidx.media3.transformer.AndroidTestUtil.JPG_ASSET_URI_STRING;
 import static androidx.media3.transformer.AndroidTestUtil.JPG_PORTRAIT_ASSET_URI_STRING;
 import static androidx.media3.transformer.AndroidTestUtil.MP4_ASSET_FORMAT;
@@ -221,6 +223,39 @@ public final class TransformerSequenceEffectTest {
         extractBitmapsFromVideo(context, checkNotNull(result.filePath)), testId);
   }
 
+  @Test
+  public void export_withBt601AndBt709MediaItems() throws Exception {
+    String testId = "export_withBt601AndBt709MediaItems";
+    if (AndroidTestUtil.skipAndLogIfFormatsUnsupported(
+        context,
+        testId,
+        /* inputFormat= */ MP4_ASSET_FORMAT,
+        /* outputFormat= */ MP4_ASSET_FORMAT)) {
+      return;
+    }
+    if (AndroidTestUtil.skipAndLogIfFormatsUnsupported(
+        context, testId, /* inputFormat= */ BT601_ASSET_FORMAT, /* outputFormat= */ null)) {
+      return;
+    }
+    Composition composition =
+        createComposition(
+            Presentation.createForHeight(EXPORT_HEIGHT),
+            clippedVideo(
+                BT601_ASSET_URI_STRING,
+                ImmutableList.of(RgbFilter.createInvertedFilter()),
+                SINGLE_30_FPS_VIDEO_FRAME_THRESHOLD_MS),
+            clippedVideo(MP4_ASSET_URI_STRING, NO_EFFECT, SINGLE_30_FPS_VIDEO_FRAME_THRESHOLD_MS));
+
+    ExportTestResult result =
+        new TransformerAndroidTestRunner.Builder(context, new Transformer.Builder(context).build())
+            .build()
+            .run(testId, composition);
+
+    assertThat(result.filePath).isNotNull();
+    assertBitmapsMatchExpectedAndSave(
+        extractBitmapsFromVideo(context, checkNotNull(result.filePath)), testId);
+  }
+
   private static OverlayEffect createOverlayEffect() throws IOException {
     return new OverlayEffect(
         ImmutableList.of(