diff --git a/extensions/av1/src/main/java/com/google/android/exoplayer2/ext/av1/Gav1Decoder.java b/extensions/av1/src/main/java/com/google/android/exoplayer2/ext/av1/Gav1Decoder.java
index 8e886b144c..687ac47f2a 100644
--- a/extensions/av1/src/main/java/com/google/android/exoplayer2/ext/av1/Gav1Decoder.java
+++ b/extensions/av1/src/main/java/com/google/android/exoplayer2/ext/av1/Gav1Decoder.java
@@ -101,10 +101,7 @@ import java.nio.ByteBuffer;
 
     boolean decodeOnly = inputBuffer.isDecodeOnly();
     if (!decodeOnly) {
-      @Nullable
-      ByteBuffer supplementalData =
-          inputBuffer.hasSupplementalData() ? inputBuffer.supplementalData : null;
-      outputBuffer.init(inputBuffer.timeUs, outputMode, supplementalData);
+      outputBuffer.init(inputBuffer.timeUs, outputMode, /* supplementalData= */ null);
     }
     // We need to dequeue the decoded frame from the decoder even when the input data is
     // decode-only.
diff --git a/extensions/vp9/src/main/java/com/google/android/exoplayer2/ext/vp9/VpxDecoder.java b/extensions/vp9/src/main/java/com/google/android/exoplayer2/ext/vp9/VpxDecoder.java
index d6ab6efc8d..1af3644744 100644
--- a/extensions/vp9/src/main/java/com/google/android/exoplayer2/ext/vp9/VpxDecoder.java
+++ b/extensions/vp9/src/main/java/com/google/android/exoplayer2/ext/vp9/VpxDecoder.java
@@ -22,6 +22,7 @@ import com.google.android.exoplayer2.decoder.CryptoInfo;
 import com.google.android.exoplayer2.decoder.SimpleDecoder;
 import com.google.android.exoplayer2.drm.DecryptionException;
 import com.google.android.exoplayer2.drm.ExoMediaCrypto;
+import com.google.android.exoplayer2.util.Assertions;
 import com.google.android.exoplayer2.util.Util;
 import com.google.android.exoplayer2.video.VideoDecoderInputBuffer;
 import com.google.android.exoplayer2.video.VideoDecoderOutputBuffer;
@@ -40,6 +41,8 @@ import java.nio.ByteBuffer;
   @Nullable private final ExoMediaCrypto exoMediaCrypto;
   private final long vpxDecContext;
 
+  @Nullable private ByteBuffer lastSupplementalData;
+
   @C.VideoOutputMode private volatile int outputMode;
 
   /**
@@ -124,6 +127,11 @@ import java.nio.ByteBuffer;
   @Nullable
   protected VpxDecoderException decode(
       VideoDecoderInputBuffer inputBuffer, VideoDecoderOutputBuffer outputBuffer, boolean reset) {
+    if (reset && lastSupplementalData != null) {
+      // Don't propagate supplemental data across calls to flush the decoder.
+      lastSupplementalData.clear();
+    }
+
     ByteBuffer inputData = Util.castNonNull(inputBuffer.data);
     int inputSize = inputData.limit();
     CryptoInfo cryptoInfo = inputBuffer.cryptoInfo;
@@ -143,11 +151,22 @@ import java.nio.ByteBuffer;
       }
     }
 
+    if (inputBuffer.hasSupplementalData()) {
+      ByteBuffer supplementalData = Assertions.checkNotNull(inputBuffer.supplementalData);
+      int size = supplementalData.remaining();
+      if (size > 0) {
+        if (lastSupplementalData == null || lastSupplementalData.capacity() < size) {
+          lastSupplementalData = ByteBuffer.allocate(size);
+        } else {
+          lastSupplementalData.clear();
+        }
+        lastSupplementalData.put(supplementalData);
+        lastSupplementalData.flip();
+      }
+    }
+
     if (!inputBuffer.isDecodeOnly()) {
-      @Nullable
-      ByteBuffer supplementalData =
-          inputBuffer.hasSupplementalData() ? inputBuffer.supplementalData : null;
-      outputBuffer.init(inputBuffer.timeUs, outputMode, supplementalData);
+      outputBuffer.init(inputBuffer.timeUs, outputMode, lastSupplementalData);
       int getFrameResult = vpxGetFrame(vpxDecContext, outputBuffer);
       if (getFrameResult == 1) {
         outputBuffer.addFlag(C.BUFFER_FLAG_DECODE_ONLY);
@@ -162,6 +181,7 @@ import java.nio.ByteBuffer;
   @Override
   public void release() {
     super.release();
+    lastSupplementalData = null;
     vpxClose(vpxDecContext);
   }
 
diff --git a/library/core/src/main/java/com/google/android/exoplayer2/video/VideoDecoderOutputBuffer.java b/library/core/src/main/java/com/google/android/exoplayer2/video/VideoDecoderOutputBuffer.java
index de8709eab2..457aa30ade 100644
--- a/library/core/src/main/java/com/google/android/exoplayer2/video/VideoDecoderOutputBuffer.java
+++ b/library/core/src/main/java/com/google/android/exoplayer2/video/VideoDecoderOutputBuffer.java
@@ -108,6 +108,8 @@ public class VideoDecoderOutputBuffer extends OutputBuffer {
       this.supplementalData.put(supplementalData);
       this.supplementalData.flip();
       supplementalData.position(0);
+    } else {
+      this.supplementalData = null;
     }
   }