diff --git a/AUTHORS b/AUTHORS
index 2ce0f1c58d..30d7be8203 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -5,3 +5,4 @@ Google Inc.
 Mozilla Foundation
 Ben Strong <bstrong@gmail.com>
 Petar Jovanovic <petarj@mips.com>
+Martin Storsjo <martin@martin.st>
diff --git a/src/modules/audio_coding/codecs/ilbc/encode.c b/src/modules/audio_coding/codecs/ilbc/encode.c
index 64e9eab3dc..8135426390 100644
--- a/src/modules/audio_coding/codecs/ilbc/encode.c
+++ b/src/modules/audio_coding/codecs/ilbc/encode.c
@@ -1,5 +1,5 @@
 /*
- *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
+ *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
@@ -42,7 +42,7 @@
 
 void WebRtcIlbcfix_EncodeImpl(
     WebRtc_UWord16 *bytes,     /* (o) encoded data bits iLBC */
-    WebRtc_Word16 *block,     /* (i) speech vector to encode */
+    const WebRtc_Word16 *block, /* (i) speech vector to encode */
     iLBC_Enc_Inst_t *iLBCenc_inst /* (i/o) the general encoder
                                      state */
                           ){
diff --git a/src/modules/audio_coding/codecs/ilbc/encode.h b/src/modules/audio_coding/codecs/ilbc/encode.h
index b553f0ce02..b7d93d7347 100644
--- a/src/modules/audio_coding/codecs/ilbc/encode.h
+++ b/src/modules/audio_coding/codecs/ilbc/encode.h
@@ -1,5 +1,5 @@
 /*
- *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
+ *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
@@ -27,7 +27,7 @@
 
 void WebRtcIlbcfix_EncodeImpl(
     WebRtc_UWord16 *bytes,     /* (o) encoded data bits iLBC */
-    WebRtc_Word16 *block,     /* (i) speech vector to encode */
+    const WebRtc_Word16 *block, /* (i) speech vector to encode */
     iLBC_Enc_Inst_t *iLBCenc_inst /* (i/o) the general encoder
                                            state */
                           );
diff --git a/src/modules/audio_coding/codecs/ilbc/ilbc.c b/src/modules/audio_coding/codecs/ilbc/ilbc.c
index 75b64c42c2..adf251bbcb 100644
--- a/src/modules/audio_coding/codecs/ilbc/ilbc.c
+++ b/src/modules/audio_coding/codecs/ilbc/ilbc.c
@@ -84,7 +84,7 @@ WebRtc_Word16 WebRtcIlbcfix_EncoderInit(iLBC_encinst_t *iLBCenc_inst, WebRtc_Wor
   }
 }
 
-WebRtc_Word16 WebRtcIlbcfix_Encode(iLBC_encinst_t *iLBCenc_inst, WebRtc_Word16 *speechIn, WebRtc_Word16 len, WebRtc_Word16 *encoded) {
+WebRtc_Word16 WebRtcIlbcfix_Encode(iLBC_encinst_t *iLBCenc_inst, const WebRtc_Word16 *speechIn, WebRtc_Word16 len, WebRtc_Word16 *encoded) {
 
   WebRtc_Word16 pos = 0;
   WebRtc_Word16 encpos = 0;
diff --git a/src/modules/audio_coding/codecs/ilbc/interface/ilbc.h b/src/modules/audio_coding/codecs/ilbc/interface/ilbc.h
index ca1d39ecaf..090d370c3d 100644
--- a/src/modules/audio_coding/codecs/ilbc/interface/ilbc.h
+++ b/src/modules/audio_coding/codecs/ilbc/interface/ilbc.h
@@ -136,9 +136,9 @@ extern "C" {
    */
 
   WebRtc_Word16 WebRtcIlbcfix_Encode(iLBC_encinst_t *iLBCenc_inst,
-				     WebRtc_Word16 *speechIn,
-				     WebRtc_Word16 len,
-				     WebRtc_Word16 *encoded);
+                                     const WebRtc_Word16 *speechIn,
+                                     WebRtc_Word16 len,
+                                     WebRtc_Word16 *encoded);
 
   /****************************************************************************
    * WebRtcIlbcfix_DecoderInit(...)