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1 /* | 1 /* |
2 * Copyright (C) 2010, Google Inc. All rights reserved. | 2 * Copyright (C) 2010, Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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28 #include "platform/audio/AudioArray.h" | 28 #include "platform/audio/AudioArray.h" |
29 #include "platform/audio/FFTFrame.h" | 29 #include "platform/audio/FFTFrame.h" |
30 #include "wtf/Forward.h" | 30 #include "wtf/Forward.h" |
31 #include "wtf/Noncopyable.h" | 31 #include "wtf/Noncopyable.h" |
32 #include "wtf/OwnPtr.h" | 32 #include "wtf/OwnPtr.h" |
33 | 33 |
34 namespace blink { | 34 namespace blink { |
35 | 35 |
36 class AudioBus; | 36 class AudioBus; |
37 | 37 |
38 class RealtimeAnalyser FINAL { | 38 class RealtimeAnalyser final { |
39 WTF_MAKE_NONCOPYABLE(RealtimeAnalyser); | 39 WTF_MAKE_NONCOPYABLE(RealtimeAnalyser); |
40 public: | 40 public: |
41 RealtimeAnalyser(); | 41 RealtimeAnalyser(); |
42 | 42 |
43 size_t fftSize() const { return m_fftSize; } | 43 size_t fftSize() const { return m_fftSize; } |
44 bool setFftSize(size_t); | 44 bool setFftSize(size_t); |
45 | 45 |
46 unsigned frequencyBinCount() const { return m_fftSize / 2; } | 46 unsigned frequencyBinCount() const { return m_fftSize / 2; } |
47 | 47 |
48 void setMinDecibels(double k) { m_minDecibels = k; } | 48 void setMinDecibels(double k) { m_minDecibels = k; } |
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88 double m_smoothingTimeConstant; | 88 double m_smoothingTimeConstant; |
89 | 89 |
90 // The range used when converting when using getByteFrequencyData(). | 90 // The range used when converting when using getByteFrequencyData(). |
91 double m_minDecibels; | 91 double m_minDecibels; |
92 double m_maxDecibels; | 92 double m_maxDecibels; |
93 }; | 93 }; |
94 | 94 |
95 } // namespace blink | 95 } // namespace blink |
96 | 96 |
97 #endif // RealtimeAnalyser_h | 97 #endif // RealtimeAnalyser_h |
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