xref: /aosp_15_r20/external/webrtc/modules/audio_coding/codecs/ilbc/cb_search_core.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_CbSearchCore.h
16 
17 ******************************************************************/
18 
19 #ifndef MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_CB_SEARCH_CORE_H_
20 #define MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_CB_SEARCH_CORE_H_
21 
22 #include <stddef.h>
23 #include <stdint.h>
24 
25 void WebRtcIlbcfix_CbSearchCore(
26     int32_t* cDot,               /* (i) Cross Correlation */
27     size_t range,                /* (i) Search range */
28     int16_t stage,               /* (i) Stage of this search */
29     int16_t* inverseEnergy,      /* (i) Inversed energy */
30     int16_t* inverseEnergyShift, /* (i) Shifts of inversed energy
31                                           with the offset 2*16-29 */
32     int32_t* Crit,               /* (o) The criteria */
33     size_t* bestIndex,           /* (o) Index that corresponds to
34                                            maximum criteria (in this
35                                            vector) */
36     int32_t* bestCrit, /* (o) Value of critera for the
37                                 chosen index */
38     int16_t* bestCritSh); /* (o) The domain of the chosen
39                                    criteria */
40 
41 #endif
42