diff --git a/libraries/transformer/src/androidTest/java/androidx/media3/transformer/TransformerEndToEndTest.java b/libraries/transformer/src/androidTest/java/androidx/media3/transformer/TransformerEndToEndTest.java
index 6c582eb6e7..e0f5647a7f 100644
--- a/libraries/transformer/src/androidTest/java/androidx/media3/transformer/TransformerEndToEndTest.java
+++ b/libraries/transformer/src/androidTest/java/androidx/media3/transformer/TransformerEndToEndTest.java
@@ -28,10 +28,10 @@ import static androidx.media3.transformer.AndroidTestUtil.PNG_ASSET_URI_STRING;
 import static androidx.media3.transformer.AndroidTestUtil.createOpenGlObjects;
 import static androidx.media3.transformer.AndroidTestUtil.generateTextureFromBitmap;
 import static androidx.media3.transformer.AndroidTestUtil.recordTestSkipped;
+import static androidx.media3.transformer.ExportResult.OPTIMIZATION_ABANDONED_KEYFRAME_PLACEMENT_OPTIMAL_FOR_TRIM;
+import static androidx.media3.transformer.ExportResult.OPTIMIZATION_ABANDONED_TRIM_AND_TRANSCODING_TRANSFORMATION_REQUESTED;
 import static androidx.media3.transformer.ExportResult.OPTIMIZATION_FAILED_FORMAT_MISMATCH;
 import static androidx.media3.transformer.ExportResult.OPTIMIZATION_SUCCEEDED;
-import static androidx.media3.transformer.ExportResult.TRIM_OPTIMIZATION_ABANDONED_KEYFRAME_PLACEMENT;
-import static androidx.media3.transformer.ExportResult.TRIM_OPTIMIZATION_ABANDONED_TRANSCODING_EFFECTS_REQUESTED;
 import static com.google.common.truth.Truth.assertThat;
 import static org.junit.Assert.assertThrows;
 import static org.junit.Assume.assumeFalse;
@@ -514,7 +514,7 @@ public class TransformerEndToEndTest {
             .run(testId, mediaItem);
 
     assertThat(result.exportResult.optimizationResult)
-        .isEqualTo(TRIM_OPTIMIZATION_ABANDONED_KEYFRAME_PLACEMENT);
+        .isEqualTo(OPTIMIZATION_ABANDONED_KEYFRAME_PLACEMENT_OPTIMAL_FOR_TRIM);
     assertThat(result.exportResult.durationMs).isAtMost(clippingEndMs - clippingStartMs);
   }
 
@@ -549,7 +549,7 @@ public class TransformerEndToEndTest {
             .run(testId, mediaItem);
 
     assertThat(result.exportResult.optimizationResult)
-        .isEqualTo(TRIM_OPTIMIZATION_ABANDONED_KEYFRAME_PLACEMENT);
+        .isEqualTo(OPTIMIZATION_ABANDONED_KEYFRAME_PLACEMENT_OPTIMAL_FOR_TRIM);
     // The asset is 15 s 537 ms long.
     assertThat(result.exportResult.durationMs).isAtMost(1_017);
   }
@@ -620,7 +620,7 @@ public class TransformerEndToEndTest {
             .run(testId, editedMediaItem);
 
     assertThat(result.exportResult.optimizationResult)
-        .isEqualTo(TRIM_OPTIMIZATION_ABANDONED_TRANSCODING_EFFECTS_REQUESTED);
+        .isEqualTo(OPTIMIZATION_ABANDONED_TRIM_AND_TRANSCODING_TRANSFORMATION_REQUESTED);
   }
 
   @Test
diff --git a/libraries/transformer/src/main/java/androidx/media3/transformer/ExportResult.java b/libraries/transformer/src/main/java/androidx/media3/transformer/ExportResult.java
index aa44961329..faa6122d1c 100644
--- a/libraries/transformer/src/main/java/androidx/media3/transformer/ExportResult.java
+++ b/libraries/transformer/src/main/java/androidx/media3/transformer/ExportResult.java
@@ -294,8 +294,8 @@ public final class ExportResult {
    * <ul>
    *   <li>{@link #OPTIMIZATION_NONE}
    *   <li>{@link #OPTIMIZATION_SUCCEEDED}
-   *   <li>{@link #TRIM_OPTIMIZATION_ABANDONED_KEYFRAME_PLACEMENT}
-   *   <li>{@link #TRIM_OPTIMIZATION_ABANDONED_TRANSCODING_EFFECTS_REQUESTED}
+   *   <li>{@link #OPTIMIZATION_ABANDONED_KEYFRAME_PLACEMENT_OPTIMAL_FOR_TRIM}
+   *   <li>{@link #OPTIMIZATION_ABANDONED_TRIM_AND_TRANSCODING_TRANSFORMATION_REQUESTED}
    *   <li>{@link #OPTIMIZATION_ABANDONED_OTHER}
    *   <li>{@link #OPTIMIZATION_FAILED_EXTRACTION_FAILED}
    *   <li>{@link #OPTIMIZATION_FAILED_FORMAT_MISMATCH}
@@ -307,8 +307,8 @@ public final class ExportResult {
   @IntDef({
     OPTIMIZATION_NONE,
     OPTIMIZATION_SUCCEEDED,
-    TRIM_OPTIMIZATION_ABANDONED_KEYFRAME_PLACEMENT,
-    TRIM_OPTIMIZATION_ABANDONED_TRANSCODING_EFFECTS_REQUESTED,
+    OPTIMIZATION_ABANDONED_KEYFRAME_PLACEMENT_OPTIMAL_FOR_TRIM,
+    OPTIMIZATION_ABANDONED_TRIM_AND_TRANSCODING_TRANSFORMATION_REQUESTED,
     OPTIMIZATION_ABANDONED_OTHER,
     OPTIMIZATION_FAILED_EXTRACTION_FAILED,
     OPTIMIZATION_FAILED_FORMAT_MISMATCH
@@ -326,19 +326,20 @@ public final class ExportResult {
    * requested}, but it would not improve performance because of key frame placement. The
    * optimization was abandoned and normal export proceeded.
    *
-   * <p>The trim optimization does not improve performance when the video starts at a key frame, or
-   * when there is no key frames between the requested {@link
+   * <p>The trim optimization does not improve performance when the requested {@link
+   * androidx.media3.common.MediaItem.ClippingConfiguration#startPositionUs} is at a key frame, or
+   * when there are no key frames between the requested {@link
    * androidx.media3.common.MediaItem.ClippingConfiguration#startPositionUs} and {@link
    * androidx.media3.common.MediaItem.ClippingConfiguration#endPositionUs}
    */
-  public static final int TRIM_OPTIMIZATION_ABANDONED_KEYFRAME_PLACEMENT = 2;
+  public static final int OPTIMIZATION_ABANDONED_KEYFRAME_PLACEMENT_OPTIMAL_FOR_TRIM = 2;
 
   /**
    * {@linkplain Transformer.Builder#experimentalSetTrimOptimizationEnabled Trim optimization was
-   * requested}, but it would not improve performance because an effect that requires transcoding
-   * was also requested. The optimization was abandoned and normal export proceeded.
+   * requested}, but it would not improve performance because another transformation that requires
+   * transcoding was also requested. The optimization was abandoned and normal export proceeded.
    */
-  public static final int TRIM_OPTIMIZATION_ABANDONED_TRANSCODING_EFFECTS_REQUESTED = 3;
+  public static final int OPTIMIZATION_ABANDONED_TRIM_AND_TRANSCODING_TRANSFORMATION_REQUESTED = 3;
 
   /**
    * The requested optimization would not improve performance for a reason other than the ones
diff --git a/libraries/transformer/src/main/java/androidx/media3/transformer/Transformer.java b/libraries/transformer/src/main/java/androidx/media3/transformer/Transformer.java
index 92f43ddab3..5745f78e0d 100644
--- a/libraries/transformer/src/main/java/androidx/media3/transformer/Transformer.java
+++ b/libraries/transformer/src/main/java/androidx/media3/transformer/Transformer.java
@@ -20,11 +20,11 @@ import static androidx.media3.common.util.Assertions.checkArgument;
 import static androidx.media3.common.util.Assertions.checkNotNull;
 import static androidx.media3.common.util.Assertions.checkState;
 import static androidx.media3.transformer.Composition.HDR_MODE_EXPERIMENTAL_FORCE_INTERPRET_HDR_AS_SDR;
+import static androidx.media3.transformer.ExportResult.OPTIMIZATION_ABANDONED_KEYFRAME_PLACEMENT_OPTIMAL_FOR_TRIM;
 import static androidx.media3.transformer.ExportResult.OPTIMIZATION_ABANDONED_OTHER;
+import static androidx.media3.transformer.ExportResult.OPTIMIZATION_ABANDONED_TRIM_AND_TRANSCODING_TRANSFORMATION_REQUESTED;
 import static androidx.media3.transformer.ExportResult.OPTIMIZATION_FAILED_EXTRACTION_FAILED;
 import static androidx.media3.transformer.ExportResult.OPTIMIZATION_FAILED_FORMAT_MISMATCH;
-import static androidx.media3.transformer.ExportResult.TRIM_OPTIMIZATION_ABANDONED_KEYFRAME_PLACEMENT;
-import static androidx.media3.transformer.ExportResult.TRIM_OPTIMIZATION_ABANDONED_TRANSCODING_EFFECTS_REQUESTED;
 import static androidx.media3.transformer.TransformerUtil.shouldTranscodeAudio;
 import static androidx.media3.transformer.TransformerUtil.shouldTranscodeVideo;
 import static androidx.media3.transformer.TransmuxTranscodeHelper.buildNewCompositionWithClipTimes;
@@ -1253,7 +1253,7 @@ public final class Transformer {
                 || (trimEndTimeUs != C.TIME_END_OF_SOURCE
                     && trimEndTimeUs < mp4MetadataInfo.firstSyncSampleTimestampUsAfterTimeUs)) {
               exportResultBuilder.setOptimizationResult(
-                  TRIM_OPTIMIZATION_ABANDONED_KEYFRAME_PLACEMENT);
+                  OPTIMIZATION_ABANDONED_KEYFRAME_PLACEMENT_OPTIMAL_FOR_TRIM);
               processFullInput();
               return;
             }
@@ -1269,7 +1269,7 @@ public final class Transformer {
                       mp4MetadataInfo.durationUs,
                       /* startsAtKeyFrame= */ true);
               exportResultBuilder.setOptimizationResult(
-                  TRIM_OPTIMIZATION_ABANDONED_KEYFRAME_PLACEMENT);
+                  OPTIMIZATION_ABANDONED_KEYFRAME_PLACEMENT_OPTIMAL_FOR_TRIM);
               processFullInput();
               return;
             }
@@ -1296,7 +1296,7 @@ public final class Transformer {
                         remuxingMuxerWrapper))) {
               remuxingMuxerWrapper = null;
               exportResultBuilder.setOptimizationResult(
-                  TRIM_OPTIMIZATION_ABANDONED_TRANSCODING_EFFECTS_REQUESTED);
+                  OPTIMIZATION_ABANDONED_TRIM_AND_TRANSCODING_TRANSFORMATION_REQUESTED);
               processFullInput();
               return;
             }
diff --git a/libraries/transformer/src/test/java/androidx/media3/transformer/MediaItemExportTest.java b/libraries/transformer/src/test/java/androidx/media3/transformer/MediaItemExportTest.java
index 079bfe1520..0b47d162c3 100644
--- a/libraries/transformer/src/test/java/androidx/media3/transformer/MediaItemExportTest.java
+++ b/libraries/transformer/src/test/java/androidx/media3/transformer/MediaItemExportTest.java
@@ -19,8 +19,8 @@ package androidx.media3.transformer;
 import static androidx.media3.test.utils.robolectric.RobolectricUtil.runLooperUntil;
 import static androidx.media3.transformer.AssetLoader.SUPPORTED_OUTPUT_TYPE_DECODED;
 import static androidx.media3.transformer.AssetLoader.SUPPORTED_OUTPUT_TYPE_ENCODED;
+import static androidx.media3.transformer.ExportResult.OPTIMIZATION_ABANDONED_KEYFRAME_PLACEMENT_OPTIMAL_FOR_TRIM;
 import static androidx.media3.transformer.ExportResult.OPTIMIZATION_FAILED_EXTRACTION_FAILED;
-import static androidx.media3.transformer.ExportResult.TRIM_OPTIMIZATION_ABANDONED_KEYFRAME_PLACEMENT;
 import static androidx.media3.transformer.TestUtil.ASSET_URI_PREFIX;
 import static androidx.media3.transformer.TestUtil.FILE_AUDIO_AMR_NB;
 import static androidx.media3.transformer.TestUtil.FILE_AUDIO_AMR_WB;
@@ -170,7 +170,7 @@ public final class MediaItemExportTest {
     ExportResult exportResult = TransformerTestRunner.runLooper(transformer);
 
     assertThat(exportResult.optimizationResult)
-        .isEqualTo(TRIM_OPTIMIZATION_ABANDONED_KEYFRAME_PLACEMENT);
+        .isEqualTo(OPTIMIZATION_ABANDONED_KEYFRAME_PLACEMENT_OPTIMAL_FOR_TRIM);
     // Asserts against file generated when experimentalSetTrimOptimizationEnabled is set to false.
     DumpFileAsserts.assertOutput(
         context,
@@ -199,7 +199,7 @@ public final class MediaItemExportTest {
     ExportResult exportResult = TransformerTestRunner.runLooper(transformer);
 
     assertThat(exportResult.optimizationResult)
-        .isEqualTo(TRIM_OPTIMIZATION_ABANDONED_KEYFRAME_PLACEMENT);
+        .isEqualTo(OPTIMIZATION_ABANDONED_KEYFRAME_PLACEMENT_OPTIMAL_FOR_TRIM);
     DumpFileAsserts.assertOutput(
         context,
         muxerFactory.getCreatedMuxer(),