Let AudioTrack write headers on SDK_INT >= 26

Issue: #6031
PiperOrigin-RevId: 253784986

library/core/src/main/java/com/google/android/exoplayer2/audio/DefaultAudioSink.java

@@ -1178,11 +1178,10 @@ public final class DefaultAudioSink implements AudioSink {
   @TargetApi(21)
   @TargetApi(21)
   private int writeNonBlockingWithAvSyncV21(AudioTrack audioTrack, ByteBuffer buffer, int size,
   private int writeNonBlockingWithAvSyncV21(AudioTrack audioTrack, ByteBuffer buffer, int size,
       long presentationTimeUs) {
       long presentationTimeUs) {
-    // TODO: Uncomment this when [Internal ref: b/33627517] is clarified or fixed.
-    // if (Util.SDK_INT >= 23) {
-    //   // The underlying platform AudioTrack writes AV sync headers directly.
-    //   return audioTrack.write(buffer, size, WRITE_NON_BLOCKING, presentationTimeUs * 1000);
-    // }
+    if (Util.SDK_INT >= 26) {
+      // The underlying platform AudioTrack writes AV sync headers directly.
+      return audioTrack.write(buffer, size, WRITE_NON_BLOCKING, presentationTimeUs * 1000);
+    }
     if (avSyncHeader == null) {
     if (avSyncHeader == null) {
       avSyncHeader = ByteBuffer.allocate(16);
       avSyncHeader = ByteBuffer.allocate(16);
       avSyncHeader.order(ByteOrder.BIG_ENDIAN);
       avSyncHeader.order(ByteOrder.BIG_ENDIAN);