1 /*
2  *  Copyright (c) 2014 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 #ifndef MODULES_AUDIO_PROCESSING_AEC_AEC_COMMON_H_
12 #define MODULES_AUDIO_PROCESSING_AEC_AEC_COMMON_H_
13 
14 #include "typedefs.h"  // NOLINT(build/include)
15 
16 #ifdef _MSC_VER /* visual c++ */
17 #define ALIGN16_BEG __declspec(align(16))
18 #define ALIGN16_END
19 #else /* gcc or icc */
20 #define ALIGN16_BEG
21 #define ALIGN16_END __attribute__((aligned(16)))
22 #endif
23 
24 #ifdef __cplusplus
25 namespace webrtc {
26 #endif
27 
28 extern ALIGN16_BEG const float ALIGN16_END WebRtcAec_sqrtHanning[65];
29 extern ALIGN16_BEG const float ALIGN16_END WebRtcAec_weightCurve[65];
30 extern ALIGN16_BEG const float ALIGN16_END WebRtcAec_overDriveCurve[65];
31 extern const float WebRtcAec_kExtendedSmoothingCoefficients[2][2];
32 extern const float WebRtcAec_kNormalSmoothingCoefficients[2][2];
33 extern const float WebRtcAec_kMinFarendPSD;
34 
35 #ifdef __cplusplus
36 }  // namespace webrtc
37 #endif
38 
39 #endif  // MODULES_AUDIO_PROCESSING_AEC_AEC_COMMON_H_
40