diff --git a/extensions/flac/src/main/java/com/google/android/exoplayer2/ext/flac/FlacBinarySearchSeeker.java b/extensions/flac/src/main/java/com/google/android/exoplayer2/ext/flac/FlacBinarySearchSeeker.java
index b736c4d743..3cbc8fe1a9 100644
--- a/extensions/flac/src/main/java/com/google/android/exoplayer2/ext/flac/FlacBinarySearchSeeker.java
+++ b/extensions/flac/src/main/java/com/google/android/exoplayer2/ext/flac/FlacBinarySearchSeeker.java
@@ -22,7 +22,6 @@ import com.google.android.exoplayer2.extractor.ExtractorInput;
 import com.google.android.exoplayer2.extractor.FlacStreamMetadata;
 import com.google.android.exoplayer2.extractor.SeekMap;
 import com.google.android.exoplayer2.util.Assertions;
-import com.google.android.exoplayer2.util.FlacConstants;
 import java.io.IOException;
 import java.nio.ByteBuffer;
 
@@ -50,6 +49,8 @@ import java.nio.ByteBuffer;
     }
   }
 
+  private static final int MIN_FRAME_HEADER_SIZE = 6;
+
   private final FlacDecoderJni decoderJni;
 
   /**
@@ -76,8 +77,7 @@ import java.nio.ByteBuffer;
         /* floorBytePosition= */ firstFramePosition,
         /* ceilingBytePosition= */ inputLength,
         /* approxBytesPerFrame= */ streamMetadata.getApproxBytesPerFrame(),
-        /* minimumSearchRange= */ max(
-            FlacConstants.MIN_FRAME_HEADER_SIZE, streamMetadata.minFrameSize));
+        /* minimumSearchRange= */ max(MIN_FRAME_HEADER_SIZE, streamMetadata.minFrameSize));
     this.decoderJni = Assertions.checkNotNull(decoderJni);
   }
 
diff --git a/extensions/flac/src/main/java/com/google/android/exoplayer2/ext/flac/LibflacAudioRenderer.java b/extensions/flac/src/main/java/com/google/android/exoplayer2/ext/flac/LibflacAudioRenderer.java
index 4c6d9f4c5b..8b2d706951 100644
--- a/extensions/flac/src/main/java/com/google/android/exoplayer2/ext/flac/LibflacAudioRenderer.java
+++ b/extensions/flac/src/main/java/com/google/android/exoplayer2/ext/flac/LibflacAudioRenderer.java
@@ -25,7 +25,6 @@ import com.google.android.exoplayer2.audio.AudioSink;
 import com.google.android.exoplayer2.audio.DecoderAudioRenderer;
 import com.google.android.exoplayer2.decoder.CryptoConfig;
 import com.google.android.exoplayer2.extractor.FlacStreamMetadata;
-import com.google.android.exoplayer2.util.FlacConstants;
 import com.google.android.exoplayer2.util.MimeTypes;
 import com.google.android.exoplayer2.util.TraceUtil;
 import com.google.android.exoplayer2.util.Util;
@@ -35,6 +34,8 @@ public final class LibflacAudioRenderer extends DecoderAudioRenderer<FlacDecoder
 
   private static final String TAG = "LibflacAudioRenderer";
   private static final int NUM_BUFFERS = 16;
+  private static final int STREAM_MARKER_SIZE = 4;
+  private static final int METADATA_BLOCK_HEADER_SIZE = 4;
 
   public LibflacAudioRenderer() {
     this(/* eventHandler= */ null, /* eventListener= */ null);
@@ -92,8 +93,7 @@ public final class LibflacAudioRenderer extends DecoderAudioRenderer<FlacDecoder
       outputFormat =
           Util.getPcmFormat(C.ENCODING_PCM_16BIT, format.channelCount, format.sampleRate);
     } else {
-      int streamMetadataOffset =
-          FlacConstants.STREAM_MARKER_SIZE + FlacConstants.METADATA_BLOCK_HEADER_SIZE;
+      int streamMetadataOffset = STREAM_MARKER_SIZE + METADATA_BLOCK_HEADER_SIZE;
       FlacStreamMetadata streamMetadata =
           new FlacStreamMetadata(format.initializationData.get(0), streamMetadataOffset);
       outputFormat = getOutputFormat(streamMetadata);
diff --git a/library/extractor/src/main/java/com/google/android/exoplayer2/extractor/FlacFrameReader.java b/library/extractor/src/main/java/com/google/android/exoplayer2/extractor/FlacFrameReader.java
index 846dd05f14..aefc69c0d5 100644
--- a/library/extractor/src/main/java/com/google/android/exoplayer2/extractor/FlacFrameReader.java
+++ b/library/extractor/src/main/java/com/google/android/exoplayer2/extractor/FlacFrameReader.java
@@ -16,7 +16,7 @@
 package com.google.android.exoplayer2.extractor;
 
 import com.google.android.exoplayer2.ParserException;
-import com.google.android.exoplayer2.util.FlacConstants;
+import com.google.android.exoplayer2.extractor.flac.FlacConstants;
 import com.google.android.exoplayer2.util.ParsableByteArray;
 import com.google.android.exoplayer2.util.Util;
 import java.io.IOException;
diff --git a/library/extractor/src/main/java/com/google/android/exoplayer2/extractor/FlacMetadataReader.java b/library/extractor/src/main/java/com/google/android/exoplayer2/extractor/FlacMetadataReader.java
index 01d2def12d..fdb36a2771 100644
--- a/library/extractor/src/main/java/com/google/android/exoplayer2/extractor/FlacMetadataReader.java
+++ b/library/extractor/src/main/java/com/google/android/exoplayer2/extractor/FlacMetadataReader.java
@@ -18,10 +18,10 @@ package com.google.android.exoplayer2.extractor;
 import androidx.annotation.Nullable;
 import com.google.android.exoplayer2.ParserException;
 import com.google.android.exoplayer2.extractor.VorbisUtil.CommentHeader;
+import com.google.android.exoplayer2.extractor.flac.FlacConstants;
 import com.google.android.exoplayer2.metadata.Metadata;
 import com.google.android.exoplayer2.metadata.flac.PictureFrame;
 import com.google.android.exoplayer2.metadata.id3.Id3Decoder;
-import com.google.android.exoplayer2.util.FlacConstants;
 import com.google.android.exoplayer2.util.ParsableBitArray;
 import com.google.android.exoplayer2.util.ParsableByteArray;
 import com.google.common.base.Charsets;
diff --git a/library/extractor/src/main/java/com/google/android/exoplayer2/extractor/flac/FlacBinarySearchSeeker.java b/library/extractor/src/main/java/com/google/android/exoplayer2/extractor/flac/FlacBinarySearchSeeker.java
index 70c8395131..4359bbba26 100644
--- a/library/extractor/src/main/java/com/google/android/exoplayer2/extractor/flac/FlacBinarySearchSeeker.java
+++ b/library/extractor/src/main/java/com/google/android/exoplayer2/extractor/flac/FlacBinarySearchSeeker.java
@@ -23,7 +23,6 @@ import com.google.android.exoplayer2.extractor.FlacFrameReader;
 import com.google.android.exoplayer2.extractor.FlacFrameReader.SampleNumberHolder;
 import com.google.android.exoplayer2.extractor.FlacStreamMetadata;
 import com.google.android.exoplayer2.extractor.SeekMap;
-import com.google.android.exoplayer2.util.FlacConstants;
 import java.io.IOException;
 
 /**
diff --git a/library/common/src/main/java/com/google/android/exoplayer2/util/FlacConstants.java b/library/extractor/src/main/java/com/google/android/exoplayer2/extractor/flac/FlacConstants.java
similarity index 96%
rename from library/common/src/main/java/com/google/android/exoplayer2/util/FlacConstants.java
rename to library/extractor/src/main/java/com/google/android/exoplayer2/extractor/flac/FlacConstants.java
index 0d36d78ff9..ded7d0d441 100644
--- a/library/common/src/main/java/com/google/android/exoplayer2/util/FlacConstants.java
+++ b/library/extractor/src/main/java/com/google/android/exoplayer2/extractor/flac/FlacConstants.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package com.google.android.exoplayer2.util;
+package com.google.android.exoplayer2.extractor.flac;
 
 /** Defines constants used by the FLAC extractor. */
 public final class FlacConstants {
diff --git a/library/extractor/src/main/java/com/google/android/exoplayer2/extractor/flac/FlacExtractor.java b/library/extractor/src/main/java/com/google/android/exoplayer2/extractor/flac/FlacExtractor.java
index 2b7c474b01..3c870616fd 100644
--- a/library/extractor/src/main/java/com/google/android/exoplayer2/extractor/flac/FlacExtractor.java
+++ b/library/extractor/src/main/java/com/google/android/exoplayer2/extractor/flac/FlacExtractor.java
@@ -36,7 +36,6 @@ import com.google.android.exoplayer2.extractor.SeekMap;
 import com.google.android.exoplayer2.extractor.TrackOutput;
 import com.google.android.exoplayer2.metadata.Metadata;
 import com.google.android.exoplayer2.util.Assertions;
-import com.google.android.exoplayer2.util.FlacConstants;
 import com.google.android.exoplayer2.util.ParsableByteArray;
 import java.io.IOException;
 import java.lang.annotation.Documented;
diff --git a/library/extractor/src/main/java/com/google/android/exoplayer2/extractor/ogg/FlacReader.java b/library/extractor/src/main/java/com/google/android/exoplayer2/extractor/ogg/FlacReader.java
index fd7688baad..c4552943b1 100644
--- a/library/extractor/src/main/java/com/google/android/exoplayer2/extractor/ogg/FlacReader.java
+++ b/library/extractor/src/main/java/com/google/android/exoplayer2/extractor/ogg/FlacReader.java
@@ -26,7 +26,7 @@ import com.google.android.exoplayer2.extractor.FlacSeekTableSeekMap;
 import com.google.android.exoplayer2.extractor.FlacStreamMetadata;
 import com.google.android.exoplayer2.extractor.FlacStreamMetadata.SeekTable;
 import com.google.android.exoplayer2.extractor.SeekMap;
-import com.google.android.exoplayer2.util.FlacConstants;
+import com.google.android.exoplayer2.extractor.flac.FlacConstants;
 import com.google.android.exoplayer2.util.ParsableByteArray;
 import com.google.android.exoplayer2.util.Util;
 import java.util.Arrays;
diff --git a/library/extractor/src/test/java/com/google/android/exoplayer2/extractor/FlacFrameReaderTest.java b/library/extractor/src/test/java/com/google/android/exoplayer2/extractor/FlacFrameReaderTest.java
index 75ef1a201e..1252c841e8 100644
--- a/library/extractor/src/test/java/com/google/android/exoplayer2/extractor/FlacFrameReaderTest.java
+++ b/library/extractor/src/test/java/com/google/android/exoplayer2/extractor/FlacFrameReaderTest.java
@@ -21,9 +21,9 @@ import androidx.test.core.app.ApplicationProvider;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.extractor.FlacFrameReader.SampleNumberHolder;
 import com.google.android.exoplayer2.extractor.FlacMetadataReader.FlacStreamMetadataHolder;
+import com.google.android.exoplayer2.extractor.flac.FlacConstants;
 import com.google.android.exoplayer2.testutil.FakeExtractorInput;
 import com.google.android.exoplayer2.testutil.TestUtil;
-import com.google.android.exoplayer2.util.FlacConstants;
 import com.google.android.exoplayer2.util.ParsableByteArray;
 import java.io.IOException;
 import org.junit.Test;
diff --git a/library/extractor/src/test/java/com/google/android/exoplayer2/extractor/FlacMetadataReaderTest.java b/library/extractor/src/test/java/com/google/android/exoplayer2/extractor/FlacMetadataReaderTest.java
index 1648d548d2..7076181d62 100644
--- a/library/extractor/src/test/java/com/google/android/exoplayer2/extractor/FlacMetadataReaderTest.java
+++ b/library/extractor/src/test/java/com/google/android/exoplayer2/extractor/FlacMetadataReaderTest.java
@@ -22,12 +22,12 @@ import androidx.test.core.app.ApplicationProvider;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.android.exoplayer2.ParserException;
 import com.google.android.exoplayer2.extractor.FlacMetadataReader.FlacStreamMetadataHolder;
+import com.google.android.exoplayer2.extractor.flac.FlacConstants;
 import com.google.android.exoplayer2.metadata.Metadata;
 import com.google.android.exoplayer2.metadata.flac.PictureFrame;
 import com.google.android.exoplayer2.metadata.flac.VorbisComment;
 import com.google.android.exoplayer2.testutil.FakeExtractorInput;
 import com.google.android.exoplayer2.testutil.TestUtil;
-import com.google.android.exoplayer2.util.FlacConstants;
 import com.google.android.exoplayer2.util.ParsableByteArray;
 import java.io.IOException;
 import java.util.ArrayList;
diff --git a/library/extractor/src/test/java/com/google/android/exoplayer2/extractor/FlacStreamMetadataTest.java b/library/extractor/src/test/java/com/google/android/exoplayer2/extractor/FlacStreamMetadataTest.java
index 9c6b63ee0a..49d49ac981 100644
--- a/library/extractor/src/test/java/com/google/android/exoplayer2/extractor/FlacStreamMetadataTest.java
+++ b/library/extractor/src/test/java/com/google/android/exoplayer2/extractor/FlacStreamMetadataTest.java
@@ -19,10 +19,10 @@ import static com.google.common.truth.Truth.assertThat;
 
 import androidx.test.core.app.ApplicationProvider;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
+import com.google.android.exoplayer2.extractor.flac.FlacConstants;
 import com.google.android.exoplayer2.metadata.Metadata;
 import com.google.android.exoplayer2.metadata.flac.VorbisComment;
 import com.google.android.exoplayer2.testutil.TestUtil;
-import com.google.android.exoplayer2.util.FlacConstants;
 import java.io.IOException;
 import java.util.ArrayList;
 import org.junit.Test;