diff --git a/media/java/android/media/AmrInputStream.java b/media/java/android/media/AmrInputStream.java
index fb91bbbbb3215..13c3ac468882f 100644
--- a/media/java/android/media/AmrInputStream.java
+++ b/media/java/android/media/AmrInputStream.java
@@ -25,7 +25,7 @@ import android.util.Log;
 
 
 /**
- * AmrInputStream
+ * DO NOT USE
  * @hide
  */
 public final class AmrInputStream extends InputStream {
@@ -51,10 +51,10 @@ public final class AmrInputStream extends InputStream {
     private byte[] mOneByte = new byte[1];
 
     /**
-     * Create a new AmrInputStream, which converts 16 bit PCM to AMR
-     * @param inputStream InputStream containing 16 bit PCM.
+     * DO NOT USE - use MediaCodec instead
      */
     public AmrInputStream(InputStream inputStream) {
+        Log.w(TAG, "@@@@ AmrInputStream is not a public API @@@@");
         mInputStream = inputStream;
 
         MediaFormat format  = new MediaFormat();
@@ -83,17 +83,26 @@ public final class AmrInputStream extends InputStream {
         mInfo = new BufferInfo();
     }
 
+    /**
+     * DO NOT USE
+     */
     @Override
     public int read() throws IOException {
         int rtn = read(mOneByte, 0, 1);
         return rtn == 1 ? (0xff & mOneByte[0]) : -1;
     }
 
+    /**
+     * DO NOT USE
+     */
     @Override
     public int read(byte[] b) throws IOException {
         return read(b, 0, b.length);
     }
 
+    /**
+     * DO NOT USE
+     */
     @Override
     public int read(byte[] b, int offset, int length) throws IOException {
         if (mCodec == null) {