xref: /aosp_15_r20/external/webrtc/modules/audio_coding/codecs/ilbc/energy_inverse.h (revision d9f758449e529ab9291ac668be2861e7a55c2422)
1 /*
2  *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 /******************************************************************
12 
13  iLBC Speech Coder ANSI-C Source Code
14 
15  WebRtcIlbcfix_EnergyInverse.h
16 
17 ******************************************************************/
18 
19 #ifndef MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_ENERGY_INVERSE_H_
20 #define MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_ENERGY_INVERSE_H_
21 
22 #include <stddef.h>
23 #include <stdint.h>
24 
25 #include "modules/audio_coding/codecs/ilbc/defines.h"
26 
27 /* Inverses the in vector in into Q29 domain */
28 
29 void WebRtcIlbcfix_EnergyInverse(
30     int16_t*
31         energy, /* (i/o) Energy and inverse
32                                                           energy (in Q29) */
33     size_t noOfEnergies); /* (i)   The length of the energy
34                                  vector */
35 
36 #endif
37