OpenShot Audio Library | OpenShotAudio  0.3.3
juce_Windowing.h
1 /*
2  ==============================================================================
3 
4  This file is part of the JUCE library.
5  Copyright (c) 2017 - ROLI Ltd.
6 
7  JUCE is an open source library subject to commercial or open-source
8  licensing.
9 
10  By using JUCE, you agree to the terms of both the JUCE 5 End-User License
11  Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
12  27th April 2017).
13 
14  End User License Agreement: www.juce.com/juce-5-licence
15  Privacy Policy: www.juce.com/juce-5-privacy-policy
16 
17  Or: You may also use this code under the terms of the GPL v3 (see
18  www.gnu.org/licenses).
19 
20  JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
21  EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
22  DISCLAIMED.
23 
24  ==============================================================================
25 */
26 
27 namespace juce
28 {
29 namespace dsp
30 {
31 
42 template <typename FloatType>
43 class JUCE_API WindowingFunction
44 {
45 public:
46  //==============================================================================
49  {
50  rectangular = 0,
51  triangular,
52  hann,
53  hamming,
54  blackman,
55  blackmanHarris,
56  flatTop,
57  kaiser,
58  numWindowingMethods
59  };
60 
61  //==============================================================================
67  WindowingFunction (size_t size, WindowingMethod,
68  bool normalise = true, FloatType beta = 0);
69 
70  //==============================================================================
81  void fillWindowingTables (size_t size, WindowingMethod type,
82  bool normalise = true, FloatType beta = 0) noexcept;
83 
94  static void fillWindowingTables (FloatType* samples, size_t size, WindowingMethod,
95  bool normalise = true, FloatType beta = 0) noexcept;
96 
98  void multiplyWithWindowingTable (FloatType* samples, size_t size) noexcept;
99 
101  static const char* getWindowingMethodName (WindowingMethod) noexcept;
102 
103 
104 private:
105  //==============================================================================
106  Array<FloatType> windowTable;
107 
108  JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (WindowingFunction)
109 };
110 
111 } // namespace dsp
112 } // namespace juce