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 WEBRTC_COMMON_AUDIO_WINDOW_GENERATOR_H_
12 #define WEBRTC_COMMON_AUDIO_WINDOW_GENERATOR_H_
13 
14 #include <stddef.h>
15 
16 #include "webrtc/base/constructormagic.h"
17 
18 namespace webrtc {
19 
20 // Helper class with generators for various signal transform windows.
21 class WindowGenerator {
22  public:
23   static void Hanning(int length, float* window);
24   static void KaiserBesselDerived(float alpha, size_t length, float* window);
25 
26  private:
27   RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(WindowGenerator);
28 };
29 
30 }  // namespace webrtc
31 
32 #endif  // WEBRTC_COMMON_AUDIO_WINDOW_GENERATOR_H_
33 
34