Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 46 insertions, 0 deletions

diff --git a/third_party/libwebrtc/modules/audio_coding/codecs/ilbc/energy_inverse.c b/third_party/libwebrtc/modules/audio_coding/codecs/ilbc/energy_inverse.c
new file mode 100644
index 0000000000..7f00254aea
--- /dev/null
+++ b/third_party/libwebrtc/modules/audio_coding/codecs/ilbc/energy_inverse.c
@@ -0,0 +1,46 @@
+/*
+ *  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_EnergyInverse.c
+
+******************************************************************/
+
+/* Inverses the in vector in into Q29 domain */
+
+#include "modules/audio_coding/codecs/ilbc/energy_inverse.h"
+
+void WebRtcIlbcfix_EnergyInverse(
+    int16_t *energy,    /* (i/o) Energy and inverse
+                                                           energy (in Q29) */
+    size_t noOfEnergies)  /* (i)   The length of the energy
+                                   vector */
+{
+  int32_t Nom=(int32_t)0x1FFFFFFF;
+  int16_t *energyPtr;
+  size_t i;
+
+  /* Set the minimum energy value to 16384 to avoid overflow */
+  energyPtr=energy;
+  for (i=0; i<noOfEnergies; i++) {
+    (*energyPtr)=WEBRTC_SPL_MAX((*energyPtr),16384);
+    energyPtr++;
+  }
+
+  /* Calculate inverse energy in Q29 */
+  energyPtr=energy;
+  for (i=0; i<noOfEnergies; i++) {
+    (*energyPtr) = (int16_t)WebRtcSpl_DivW32W16(Nom, (*energyPtr));
+    energyPtr++;
+  }
+}