iLBC: Handle a case of bad input data

webrtc/modules/audio_coding/codecs/ilbc/get_cd_vec.h

Index: webrtc/modules/audio_coding/codecs/ilbc/get_cd_vec.h
diff --git a/webrtc/modules/audio_coding/codecs/ilbc/get_cd_vec.h b/webrtc/modules/audio_coding/codecs/ilbc/get_cd_vec.h
index 07f67a2aa5eaaf561dee9ed4ad0db9606e53f07b..b0bf682c19348d5ce9a191c2427377d49337a748 100644
--- a/webrtc/modules/audio_coding/codecs/ilbc/get_cd_vec.h
+++ b/webrtc/modules/audio_coding/codecs/ilbc/get_cd_vec.h
@@ -19,12 +19,13 @@
 #ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_GET_CD_VEC_H_
 #define WEBRTC_MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_GET_CD_VEC_H_
 
-void WebRtcIlbcfix_GetCbVec(
-    int16_t *cbvec,   /* (o) Constructed codebook vector */
-    int16_t *mem,   /* (i) Codebook buffer */
-    size_t index,   /* (i) Codebook index */
-    size_t lMem,   /* (i) Length of codebook buffer */
-    size_t cbveclen   /* (i) Codebook vector length */
-                            );
+// Returns true on success, false on failure. In case of failure, the decoder
+// state may be corrupted and needs resetting.
+int WebRtcIlbcfix_GetCbVec(int16_t* cbvec, /* (o) Constructed codebook vector */
+                           int16_t* mem,   /* (i) Codebook buffer */
+                           size_t index,   /* (i) Codebook index */
+                           size_t lMem,    /* (i) Length of codebook buffer */
+                           size_t cbveclen /* (i) Codebook vector length */
+                           ) WARN_UNUSED_RESULT;
 
 #endif