Move src/ -> webrtc/

TBR=niklas.enbom@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/915006

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@2963 4adac7df-926f-26a2-2b94-8c16560cd09d

1 files changed, 101 insertions, 0 deletions

diff --git a/common_audio/signal_processing/ilbc_specific_functions.c b/common_audio/signal_processing/ilbc_specific_functions.c
new file mode 100644
index 00000000..3588ba41
--- /dev/null
+++ b/common_audio/signal_processing/ilbc_specific_functions.c
@@ -0,0 +1,101 @@
+/*
+ *  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
+ *  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.
+ */
+
+
+/*
+ * This file contains implementations of the iLBC specific functions
+ * WebRtcSpl_ReverseOrderMultArrayElements()
+ * WebRtcSpl_ElementwiseVectorMult()
+ * WebRtcSpl_AddVectorsAndShift()
+ * WebRtcSpl_AddAffineVectorToVector()
+ * WebRtcSpl_AffineTransformVector()
+ *
+ */
+
+#include "signal_processing_library.h"
+
+void WebRtcSpl_ReverseOrderMultArrayElements(WebRtc_Word16 *out, G_CONST WebRtc_Word16 *in,
+                                             G_CONST WebRtc_Word16 *win,
+                                             WebRtc_Word16 vector_length,
+                                             WebRtc_Word16 right_shifts)
+{
+    int i;
+    WebRtc_Word16 *outptr = out;
+    G_CONST WebRtc_Word16 *inptr = in;
+    G_CONST WebRtc_Word16 *winptr = win;
+    for (i = 0; i < vector_length; i++)
+    {
+        (*outptr++) = (WebRtc_Word16)WEBRTC_SPL_MUL_16_16_RSFT(*inptr++,
+                                                               *winptr--, right_shifts);
+    }
+}
+
+void WebRtcSpl_ElementwiseVectorMult(WebRtc_Word16 *out, G_CONST WebRtc_Word16 *in,
+                                     G_CONST WebRtc_Word16 *win, WebRtc_Word16 vector_length,
+                                     WebRtc_Word16 right_shifts)
+{
+    int i;
+    WebRtc_Word16 *outptr = out;
+    G_CONST WebRtc_Word16 *inptr = in;
+    G_CONST WebRtc_Word16 *winptr = win;
+    for (i = 0; i < vector_length; i++)
+    {
+        (*outptr++) = (WebRtc_Word16)WEBRTC_SPL_MUL_16_16_RSFT(*inptr++,
+                                                               *winptr++, right_shifts);
+    }
+}
+
+void WebRtcSpl_AddVectorsAndShift(WebRtc_Word16 *out, G_CONST WebRtc_Word16 *in1,
+                                  G_CONST WebRtc_Word16 *in2, WebRtc_Word16 vector_length,
+                                  WebRtc_Word16 right_shifts)
+{
+    int i;
+    WebRtc_Word16 *outptr = out;
+    G_CONST WebRtc_Word16 *in1ptr = in1;
+    G_CONST WebRtc_Word16 *in2ptr = in2;
+    for (i = vector_length; i > 0; i--)
+    {
+        (*outptr++) = (WebRtc_Word16)(((*in1ptr++) + (*in2ptr++)) >> right_shifts);
+    }
+}
+
+void WebRtcSpl_AddAffineVectorToVector(WebRtc_Word16 *out, WebRtc_Word16 *in,
+                                       WebRtc_Word16 gain, WebRtc_Word32 add_constant,
+                                       WebRtc_Word16 right_shifts, int vector_length)
+{
+    WebRtc_Word16 *inPtr;
+    WebRtc_Word16 *outPtr;
+    int i;
+
+    inPtr = in;
+    outPtr = out;
+    for (i = 0; i < vector_length; i++)
+    {
+        (*outPtr++) += (WebRtc_Word16)((WEBRTC_SPL_MUL_16_16((*inPtr++), gain)
+                + (WebRtc_Word32)add_constant) >> right_shifts);
+    }
+}
+
+void WebRtcSpl_AffineTransformVector(WebRtc_Word16 *out, WebRtc_Word16 *in,
+                                     WebRtc_Word16 gain, WebRtc_Word32 add_constant,
+                                     WebRtc_Word16 right_shifts, int vector_length)
+{
+    WebRtc_Word16 *inPtr;
+    WebRtc_Word16 *outPtr;
+    int i;
+
+    inPtr = in;
+    outPtr = out;
+    for (i = 0; i < vector_length; i++)
+    {
+        (*outPtr++) = (WebRtc_Word16)((WEBRTC_SPL_MUL_16_16((*inPtr++), gain)
+                + (WebRtc_Word32)add_constant) >> right_shifts);
+    }
+}