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
