1 files changed, 63 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/audio_coding/codecs/ilbc/split_vq.c b/third_party/libwebrtc/modules/audio_coding/codecs/ilbc/split_vq.c
new file mode 100644
index 0000000000..c1f04d2287
--- /dev/null
+++ b/third_party/libwebrtc/modules/audio_coding/codecs/ilbc/split_vq.c
@@ -0,0 +1,63 @@
+/*
+ *  Copyright (c) 2011 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
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+/******************************************************************
+
+ iLBC Speech Coder ANSI-C Source Code
+
+ WebRtcIlbcfix_SplitVq.c
+
+******************************************************************/
+
+#include "modules/audio_coding/codecs/ilbc/split_vq.h"
+
+#include "modules/audio_coding/codecs/ilbc/constants.h"
+#include "modules/audio_coding/codecs/ilbc/defines.h"
+#include "modules/audio_coding/codecs/ilbc/vq3.h"
+#include "modules/audio_coding/codecs/ilbc/vq4.h"
+
+/*----------------------------------------------------------------*
+ *  split vector quantization
+ *---------------------------------------------------------------*/
+
+void WebRtcIlbcfix_SplitVq(
+    int16_t *qX,  /* (o) the quantized vector in Q13 */
+    int16_t *index, /* (o) a vector of indexes for all vector
+                                   codebooks in the split */
+    int16_t *X,  /* (i) the vector to quantize */
+    int16_t *CB,  /* (i) the quantizer codebook in Q13 */
+    int16_t *dim, /* (i) the dimension of X and qX */
+    int16_t *cbsize /* (i) the number of vectors in the codebook */
+                           ) {
+
+  int16_t *qXPtr, *indexPtr, *CBPtr, *XPtr;
+
+  /* Quantize X with the 3 vectror quantization tables */
+
+  qXPtr=qX;
+  indexPtr=index;
+  CBPtr=CB;
+  XPtr=X;
+  WebRtcIlbcfix_Vq3(qXPtr, indexPtr, CBPtr, XPtr, cbsize[0]);
+
+  qXPtr+=3;
+  indexPtr+=1;
+  CBPtr+=(dim[0]*cbsize[0]);
+  XPtr+=3;
+  WebRtcIlbcfix_Vq3(qXPtr, indexPtr, CBPtr, XPtr, cbsize[1]);
+
+  qXPtr+=3;
+  indexPtr+=1;
+  CBPtr+=(dim[1]*cbsize[1]);
+  XPtr+=3;
+  WebRtcIlbcfix_Vq4(qXPtr, indexPtr, CBPtr, XPtr, cbsize[2]);
+
+  return;
+}