diff --git a/libraries/transformer/src/main/java/androidx/media3/transformer/TransformerInternal.java b/libraries/transformer/src/main/java/androidx/media3/transformer/TransformerInternal.java
index 90771f496f..03d5f5ce55 100644
--- a/libraries/transformer/src/main/java/androidx/media3/transformer/TransformerInternal.java
+++ b/libraries/transformer/src/main/java/androidx/media3/transformer/TransformerInternal.java
@@ -23,14 +23,13 @@ import static androidx.media3.common.util.Assertions.checkState;
 import static androidx.media3.common.util.Util.contains;
 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.Composition.HDR_MODE_KEEP_HDR;
 import static androidx.media3.transformer.ExportException.ERROR_CODE_FAILED_RUNTIME_CHECK;
 import static androidx.media3.transformer.ExportException.ERROR_CODE_MUXING_FAILED;
 import static androidx.media3.transformer.Transformer.PROGRESS_STATE_AVAILABLE;
 import static androidx.media3.transformer.Transformer.PROGRESS_STATE_NOT_STARTED;
-import static androidx.media3.transformer.TransformerUtil.areVideoEffectsAllNoOp;
-import static androidx.media3.transformer.TransformerUtil.containsSlowMotionData;
 import static androidx.media3.transformer.TransformerUtil.getProcessedTrackType;
+import static androidx.media3.transformer.TransformerUtil.shouldTranscodeAudio;
+import static androidx.media3.transformer.TransformerUtil.shouldTranscodeVideo;
 import static java.lang.Math.max;
 import static java.lang.annotation.ElementType.TYPE_USE;
 
@@ -45,14 +44,12 @@ import androidx.annotation.IntDef;
 import androidx.annotation.Nullable;
 import androidx.media3.common.C;
 import androidx.media3.common.DebugViewProvider;
-import androidx.media3.common.Effect;
 import androidx.media3.common.Format;
 import androidx.media3.common.MimeTypes;
 import androidx.media3.common.VideoFrameProcessor;
 import androidx.media3.common.util.Clock;
 import androidx.media3.common.util.ConditionVariable;
 import androidx.media3.common.util.HandlerWrapper;
-import androidx.media3.effect.ScaleAndRotateTransformation;
 import com.google.common.collect.ImmutableList;
 import java.lang.annotation.Documented;
 import java.lang.annotation.Retention;
@@ -445,7 +442,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
   private final class SequenceAssetLoaderListener implements AssetLoader.Listener {
 
     private final int sequenceIndex;
-    private final ImmutableList<EditedMediaItem> editedMediaItems;
+    private final EditedMediaItem firstEditedMediaItem;
     private final Composition composition;
     private final TransformationRequest transformationRequest;
     private final AudioMixer.Factory audioMixerFactory;
@@ -463,7 +460,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
         FallbackListener fallbackListener,
         DebugViewProvider debugViewProvider) {
       this.sequenceIndex = sequenceIndex;
-      this.editedMediaItems = composition.sequences.get(sequenceIndex).editedMediaItems;
+      this.firstEditedMediaItem = composition.sequences.get(sequenceIndex).editedMediaItems.get(0);
       this.composition = composition;
       this.transformationRequest = transformationRequest;
       this.audioMixerFactory = audioMixerFactory;
@@ -535,7 +532,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
         }
 
         GraphInput sampleExporterInput =
-            sampleExporter.getInput(editedMediaItems.get(0), assetLoaderOutputFormat);
+            sampleExporter.getInput(firstEditedMediaItem, assetLoaderOutputFormat);
         OnMediaItemChangedListener onMediaItemChangedListener =
             (editedMediaItem, durationUs, trackFormat, isLast) -> {
               onMediaItemChanged(trackType, durationUs, isLast);
@@ -581,7 +578,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
                 firstAssetLoaderInputFormat,
                 /* firstInputFormat= */ assetLoaderOutputFormat,
                 transformationRequest,
-                editedMediaItems.get(0),
+                firstEditedMediaItem,
                 audioMixerFactory,
                 encoderFactory,
                 muxerWrapper,
@@ -680,95 +677,29 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
       if (!assetLoaderCanOutputEncoded) {
         shouldTranscode = true;
       } else if (trackType == TRACK_TYPE_AUDIO) {
-        shouldTranscode = shouldTranscodeAudio(inputFormat);
+        shouldTranscode =
+            shouldTranscodeAudio(
+                inputFormat,
+                composition,
+                sequenceIndex,
+                transformationRequest,
+                encoderFactory,
+                muxerWrapper);
       } else if (trackType == C.TRACK_TYPE_VIDEO) {
-        shouldTranscode = shouldTranscodeVideo(inputFormat);
+        shouldTranscode =
+            shouldTranscodeVideo(
+                inputFormat,
+                composition,
+                sequenceIndex,
+                transformationRequest,
+                encoderFactory,
+                muxerWrapper);
       }
 
       checkState(!shouldTranscode || assetLoaderCanOutputDecoded);
 
       return shouldTranscode;
     }
-
-    private boolean shouldTranscodeAudio(Format inputFormat) {
-      if (composition.sequences.size() > 1 || editedMediaItems.size() > 1) {
-        return !composition.transmuxAudio;
-      }
-      if (encoderFactory.audioNeedsEncoding()) {
-        return true;
-      }
-      if (transformationRequest.audioMimeType != null
-          && !transformationRequest.audioMimeType.equals(inputFormat.sampleMimeType)) {
-        return true;
-      }
-      if (transformationRequest.audioMimeType == null
-          && !muxerWrapper.supportsSampleMimeType(inputFormat.sampleMimeType)) {
-        return true;
-      }
-      EditedMediaItem firstEditedMediaItem = editedMediaItems.get(0);
-      if (firstEditedMediaItem.flattenForSlowMotion && containsSlowMotionData(inputFormat)) {
-        return true;
-      }
-      if (!firstEditedMediaItem.effects.audioProcessors.isEmpty()) {
-        return true;
-      }
-      return false;
-    }
-
-    private boolean shouldTranscodeVideo(Format inputFormat) {
-      if (composition.sequences.size() > 1 || editedMediaItems.size() > 1) {
-        return !composition.transmuxVideo;
-      }
-      EditedMediaItem firstEditedMediaItem = editedMediaItems.get(0);
-      if (firstEditedMediaItem.mediaItem.clippingConfiguration.startPositionMs > 0
-          && !firstEditedMediaItem.mediaItem.clippingConfiguration.startsAtKeyFrame) {
-        return true;
-      }
-      if (encoderFactory.videoNeedsEncoding()) {
-        return true;
-      }
-      if (transformationRequest.hdrMode != HDR_MODE_KEEP_HDR) {
-        return true;
-      }
-      if (transformationRequest.videoMimeType != null
-          && !transformationRequest.videoMimeType.equals(inputFormat.sampleMimeType)) {
-        return true;
-      }
-      if (transformationRequest.videoMimeType == null
-          && !muxerWrapper.supportsSampleMimeType(inputFormat.sampleMimeType)) {
-        return true;
-      }
-      if (inputFormat.pixelWidthHeightRatio != 1f) {
-        return true;
-      }
-      ImmutableList<Effect> videoEffects = firstEditedMediaItem.effects.videoEffects;
-      return !videoEffects.isEmpty()
-          && !areVideoEffectsAllNoOp(videoEffects, inputFormat)
-          && !hasOnlyRegularRotationEffect(videoEffects);
-    }
-
-    private boolean hasOnlyRegularRotationEffect(ImmutableList<Effect> videoEffects) {
-      if (videoEffects.size() != 1) {
-        return false;
-      }
-      Effect videoEffect = videoEffects.get(0);
-      if (!(videoEffect instanceof ScaleAndRotateTransformation)) {
-        return false;
-      }
-      ScaleAndRotateTransformation scaleAndRotateTransformation =
-          (ScaleAndRotateTransformation) videoEffect;
-      if (scaleAndRotateTransformation.scaleX != 1f || scaleAndRotateTransformation.scaleY != 1f) {
-        return false;
-      }
-      float rotationDegrees = scaleAndRotateTransformation.rotationDegrees;
-      if (rotationDegrees == 90f || rotationDegrees == 180f || rotationDegrees == 270f) {
-        // The MuxerWrapper rotation is clockwise while the ScaleAndRotateTransformation rotation
-        // is counterclockwise.
-        muxerWrapper.setAdditionalRotationDegrees(360 - Math.round(rotationDegrees));
-        return true;
-      }
-      return false;
-    }
   }
 
   /** Tracks the inputs and outputs of {@link AssetLoader AssetLoaders}. */
diff --git a/libraries/transformer/src/main/java/androidx/media3/transformer/TransformerUtil.java b/libraries/transformer/src/main/java/androidx/media3/transformer/TransformerUtil.java
index 0431f83153..db065f5960 100644
--- a/libraries/transformer/src/main/java/androidx/media3/transformer/TransformerUtil.java
+++ b/libraries/transformer/src/main/java/androidx/media3/transformer/TransformerUtil.java
@@ -16,6 +16,8 @@
 
 package androidx.media3.transformer;
 
+import static androidx.media3.transformer.Composition.HDR_MODE_KEEP_HDR;
+
 import android.media.MediaCodec;
 import androidx.annotation.Nullable;
 import androidx.media3.common.C;
@@ -24,6 +26,7 @@ import androidx.media3.common.Format;
 import androidx.media3.common.Metadata;
 import androidx.media3.common.MimeTypes;
 import androidx.media3.effect.GlEffect;
+import androidx.media3.effect.ScaleAndRotateTransformation;
 import androidx.media3.extractor.metadata.mp4.SlowMotionData;
 import com.google.common.collect.ImmutableList;
 
@@ -45,6 +48,110 @@ import com.google.common.collect.ImmutableList;
     return trackType == C.TRACK_TYPE_IMAGE ? C.TRACK_TYPE_VIDEO : trackType;
   }
 
+  /** Returns {@link MediaCodec} flags corresponding to {@link C.BufferFlags}. */
+  public static int getMediaCodecFlags(@C.BufferFlags int flags) {
+    int mediaCodecFlags = 0;
+    if ((flags & C.BUFFER_FLAG_KEY_FRAME) == C.BUFFER_FLAG_KEY_FRAME) {
+      mediaCodecFlags |= MediaCodec.BUFFER_FLAG_KEY_FRAME;
+    }
+    if ((flags & C.BUFFER_FLAG_END_OF_STREAM) == C.BUFFER_FLAG_END_OF_STREAM) {
+      mediaCodecFlags |= MediaCodec.BUFFER_FLAG_END_OF_STREAM;
+    }
+    return mediaCodecFlags;
+  }
+
+  /** Returns whether the audio track should be transcoded. */
+  public static boolean shouldTranscodeAudio(
+      Format inputFormat,
+      Composition composition,
+      int sequenceIndex,
+      TransformationRequest transformationRequest,
+      Codec.EncoderFactory encoderFactory,
+      MuxerWrapper muxerWrapper) {
+    if (composition.sequences.size() > 1
+        || composition.sequences.get(sequenceIndex).editedMediaItems.size() > 1) {
+      return !composition.transmuxAudio;
+    }
+    if (encoderFactory.audioNeedsEncoding()) {
+      return true;
+    }
+    if (transformationRequest.audioMimeType != null
+        && !transformationRequest.audioMimeType.equals(inputFormat.sampleMimeType)) {
+      return true;
+    }
+    if (transformationRequest.audioMimeType == null
+        && !muxerWrapper.supportsSampleMimeType(inputFormat.sampleMimeType)) {
+      return true;
+    }
+    EditedMediaItem firstEditedMediaItem =
+        composition.sequences.get(sequenceIndex).editedMediaItems.get(0);
+    if (firstEditedMediaItem.flattenForSlowMotion && containsSlowMotionData(inputFormat)) {
+      return true;
+    }
+    if (!firstEditedMediaItem.effects.audioProcessors.isEmpty()) {
+      return true;
+    }
+    return false;
+  }
+
+  /**
+   * Returns whether the {@link Format} contains {@linkplain SlowMotionData slow motion metadata}.
+   */
+  private static boolean containsSlowMotionData(Format format) {
+    @Nullable Metadata metadata = format.metadata;
+    if (metadata == null) {
+      return false;
+    }
+    for (int i = 0; i < metadata.length(); i++) {
+      if (metadata.get(i) instanceof SlowMotionData) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  /** Returns whether the video track should be transcoded. */
+  public static boolean shouldTranscodeVideo(
+      Format inputFormat,
+      Composition composition,
+      int sequenceIndex,
+      TransformationRequest transformationRequest,
+      Codec.EncoderFactory encoderFactory,
+      MuxerWrapper muxerWrapper) {
+
+    if (composition.sequences.size() > 1
+        || composition.sequences.get(sequenceIndex).editedMediaItems.size() > 1) {
+      return !composition.transmuxVideo;
+    }
+    EditedMediaItem firstEditedMediaItem =
+        composition.sequences.get(sequenceIndex).editedMediaItems.get(0);
+    if (firstEditedMediaItem.mediaItem.clippingConfiguration.startPositionMs > 0
+        && !firstEditedMediaItem.mediaItem.clippingConfiguration.startsAtKeyFrame) {
+      return true;
+    }
+    if (encoderFactory.videoNeedsEncoding()) {
+      return true;
+    }
+    if (transformationRequest.hdrMode != HDR_MODE_KEEP_HDR) {
+      return true;
+    }
+    if (transformationRequest.videoMimeType != null
+        && !transformationRequest.videoMimeType.equals(inputFormat.sampleMimeType)) {
+      return true;
+    }
+    if (transformationRequest.videoMimeType == null
+        && !muxerWrapper.supportsSampleMimeType(inputFormat.sampleMimeType)) {
+      return true;
+    }
+    if (inputFormat.pixelWidthHeightRatio != 1f) {
+      return true;
+    }
+    ImmutableList<Effect> videoEffects = firstEditedMediaItem.effects.videoEffects;
+    return !videoEffects.isEmpty()
+        && !areVideoEffectsAllNoOp(videoEffects, inputFormat)
+        && !hasOnlyRegularRotationEffect(videoEffects, muxerWrapper);
+  }
+
   /**
    * Returns whether the collection of {@code videoEffects} would be a {@linkplain
    * GlEffect#isNoOp(int, int) no-op}, if queued samples of this {@link Format}.
@@ -70,31 +177,27 @@ import com.google.common.collect.ImmutableList;
     return true;
   }
 
-  /**
-   * Returns whether the {@link Format} contains {@linkplain SlowMotionData slow motion metadata}.
-   */
-  public static boolean containsSlowMotionData(Format format) {
-    @Nullable Metadata metadata = format.metadata;
-    if (metadata == null) {
+  private static boolean hasOnlyRegularRotationEffect(
+      ImmutableList<Effect> videoEffects, MuxerWrapper muxerWrapper) {
+    if (videoEffects.size() != 1) {
       return false;
     }
-    for (int i = 0; i < metadata.length(); i++) {
-      if (metadata.get(i) instanceof SlowMotionData) {
-        return true;
-      }
+    Effect videoEffect = videoEffects.get(0);
+    if (!(videoEffect instanceof ScaleAndRotateTransformation)) {
+      return false;
+    }
+    ScaleAndRotateTransformation scaleAndRotateTransformation =
+        (ScaleAndRotateTransformation) videoEffect;
+    if (scaleAndRotateTransformation.scaleX != 1f || scaleAndRotateTransformation.scaleY != 1f) {
+      return false;
+    }
+    float rotationDegrees = scaleAndRotateTransformation.rotationDegrees;
+    if (rotationDegrees == 90f || rotationDegrees == 180f || rotationDegrees == 270f) {
+      // The MuxerWrapper rotation is clockwise while the ScaleAndRotateTransformation rotation
+      // is counterclockwise.
+      muxerWrapper.setAdditionalRotationDegrees(360 - Math.round(rotationDegrees));
+      return true;
     }
     return false;
   }
-
-  /** Returns {@link MediaCodec} flags corresponding to {@link C.BufferFlags}. */
-  public static int getMediaCodecFlags(@C.BufferFlags int flags) {
-    int mediaCodecFlags = 0;
-    if ((flags & C.BUFFER_FLAG_KEY_FRAME) == C.BUFFER_FLAG_KEY_FRAME) {
-      mediaCodecFlags |= MediaCodec.BUFFER_FLAG_KEY_FRAME;
-    }
-    if ((flags & C.BUFFER_FLAG_END_OF_STREAM) == C.BUFFER_FLAG_END_OF_STREAM) {
-      mediaCodecFlags |= MediaCodec.BUFFER_FLAG_END_OF_STREAM;
-    }
-    return mediaCodecFlags;
-  }
 }