diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index 625741f3b2..00ad07766e 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -26,6 +26,8 @@
     *   Add `BasePreloadManager.Listener` to propagate preload events to apps.
     *   Allow changing SNTP client timeout
         ([#1540](https://github.com/androidx/media/issues/1540)).
+    *   Remove `MediaCodecAdapter.Configuration.flags` as the field was always
+        zero.
 *   Transformer:
     *   Add `SurfaceAssetLoader`, which supports queueing video data to
         Transformer via a `Surface`.
diff --git a/libraries/exoplayer/src/main/java/androidx/media3/exoplayer/mediacodec/AsynchronousMediaCodecAdapter.java b/libraries/exoplayer/src/main/java/androidx/media3/exoplayer/mediacodec/AsynchronousMediaCodecAdapter.java
index e2445b518a..ea1a31c013 100644
--- a/libraries/exoplayer/src/main/java/androidx/media3/exoplayer/mediacodec/AsynchronousMediaCodecAdapter.java
+++ b/libraries/exoplayer/src/main/java/androidx/media3/exoplayer/mediacodec/AsynchronousMediaCodecAdapter.java
@@ -103,7 +103,7 @@ import java.nio.ByteBuffer;
       try {
         TraceUtil.beginSection("createCodec:" + codecName);
         codec = MediaCodec.createByCodecName(codecName);
-        int flags = configuration.flags;
+        int flags = 0;
         MediaCodecBufferEnqueuer bufferEnqueuer;
         if (enableSynchronousBufferQueueingWithAsyncCryptoFlag
             && useSynchronousBufferQueueingWithAsyncCryptoFlag(configuration.format)) {
diff --git a/libraries/exoplayer/src/main/java/androidx/media3/exoplayer/mediacodec/MediaCodecAdapter.java b/libraries/exoplayer/src/main/java/androidx/media3/exoplayer/mediacodec/MediaCodecAdapter.java
index 9a89bfd3a2..2184b28f0e 100644
--- a/libraries/exoplayer/src/main/java/androidx/media3/exoplayer/mediacodec/MediaCodecAdapter.java
+++ b/libraries/exoplayer/src/main/java/androidx/media3/exoplayer/mediacodec/MediaCodecAdapter.java
@@ -57,8 +57,7 @@ public interface MediaCodecAdapter {
         MediaFormat mediaFormat,
         Format format,
         @Nullable MediaCrypto crypto) {
-      return new Configuration(
-          codecInfo, mediaFormat, format, /* surface= */ null, crypto, /* flags= */ 0);
+      return new Configuration(codecInfo, mediaFormat, format, /* surface= */ null, crypto);
     }
 
     /**
@@ -77,7 +76,7 @@ public interface MediaCodecAdapter {
         Format format,
         @Nullable Surface surface,
         @Nullable MediaCrypto crypto) {
-      return new Configuration(codecInfo, mediaFormat, format, surface, crypto, /* flags= */ 0);
+      return new Configuration(codecInfo, mediaFormat, format, surface, crypto);
     }
 
     /** Information about the {@link MediaCodec} being configured. */
@@ -99,22 +98,17 @@ public interface MediaCodecAdapter {
     /** For DRM protected playbacks, a {@link MediaCrypto} to use for decryption. */
     @Nullable public final MediaCrypto crypto;
 
-    /** See {@link MediaCodec#configure}. */
-    public final int flags;
-
     private Configuration(
         MediaCodecInfo codecInfo,
         MediaFormat mediaFormat,
         Format format,
         @Nullable Surface surface,
-        @Nullable MediaCrypto crypto,
-        int flags) {
+        @Nullable MediaCrypto crypto) {
       this.codecInfo = codecInfo;
       this.mediaFormat = mediaFormat;
       this.format = format;
       this.surface = surface;
       this.crypto = crypto;
-      this.flags = flags;
     }
   }
 
diff --git a/libraries/exoplayer/src/main/java/androidx/media3/exoplayer/mediacodec/SynchronousMediaCodecAdapter.java b/libraries/exoplayer/src/main/java/androidx/media3/exoplayer/mediacodec/SynchronousMediaCodecAdapter.java
index 9b9a707a39..02c01e9935 100644
--- a/libraries/exoplayer/src/main/java/androidx/media3/exoplayer/mediacodec/SynchronousMediaCodecAdapter.java
+++ b/libraries/exoplayer/src/main/java/androidx/media3/exoplayer/mediacodec/SynchronousMediaCodecAdapter.java
@@ -50,10 +50,7 @@ public final class SynchronousMediaCodecAdapter implements MediaCodecAdapter {
         codec = createCodec(configuration);
         TraceUtil.beginSection("configureCodec");
         codec.configure(
-            configuration.mediaFormat,
-            configuration.surface,
-            configuration.crypto,
-            configuration.flags);
+            configuration.mediaFormat, configuration.surface, configuration.crypto, /* flags= */ 0);
         TraceUtil.endSection();
         TraceUtil.beginSection("startCodec");
         codec.start();