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Side by Side Diff: third_party/WebKit/Source/platform/audio/AudioDSPKernel.h

Issue 2384073002: reflow comments in platform/audio (Closed)
Patch Set: comments (heh!) Created 4 years, 2 months ago
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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 are 5 * modification, are permitted provided that the following conditions are
6 * met: 6 * met:
7 * 7 *
8 * * Redistributions of source code must retain the above copyright 8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer. 9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above 10 * * Redistributions in binary form must reproduce the above
(...skipping 18 matching lines...) Expand all
29 */ 29 */
30 30
31 #ifndef AudioDSPKernel_h 31 #ifndef AudioDSPKernel_h
32 #define AudioDSPKernel_h 32 #define AudioDSPKernel_h
33 33
34 #include "platform/audio/AudioDSPKernelProcessor.h" 34 #include "platform/audio/AudioDSPKernelProcessor.h"
35 #include "wtf/Allocator.h" 35 #include "wtf/Allocator.h"
36 36
37 namespace blink { 37 namespace blink {
38 38
39 // AudioDSPKernel does the processing for one channel of an AudioDSPKernelProces sor. 39 // AudioDSPKernel does the processing for one channel of an
40 // AudioDSPKernelProcessor.
40 41
41 class PLATFORM_EXPORT AudioDSPKernel { 42 class PLATFORM_EXPORT AudioDSPKernel {
42 USING_FAST_MALLOC(AudioDSPKernel); 43 USING_FAST_MALLOC(AudioDSPKernel);
43 44
44 public: 45 public:
45 AudioDSPKernel(AudioDSPKernelProcessor* kernelProcessor) 46 AudioDSPKernel(AudioDSPKernelProcessor* kernelProcessor)
46 : m_kernelProcessor(kernelProcessor), 47 : m_kernelProcessor(kernelProcessor),
47 m_sampleRate(kernelProcessor->sampleRate()) {} 48 m_sampleRate(kernelProcessor->sampleRate()) {}
48 49
49 AudioDSPKernel(float sampleRate) 50 AudioDSPKernel(float sampleRate)
50 : m_kernelProcessor(nullptr), m_sampleRate(sampleRate) {} 51 : m_kernelProcessor(nullptr), m_sampleRate(sampleRate) {}
51 52
52 virtual ~AudioDSPKernel(); 53 virtual ~AudioDSPKernel();
53 54
54 // Subclasses must override process() to do the processing and reset() to rese t DSP state. 55 // Subclasses must override process() to do the processing and reset() to
56 // reset DSP state.
55 virtual void process(const float* source, 57 virtual void process(const float* source,
56 float* destination, 58 float* destination,
57 size_t framesToProcess) = 0; 59 size_t framesToProcess) = 0;
58 virtual void reset() = 0; 60 virtual void reset() = 0;
59 61
60 float sampleRate() const { return m_sampleRate; } 62 float sampleRate() const { return m_sampleRate; }
61 double nyquist() const { return 0.5 * sampleRate(); } 63 double nyquist() const { return 0.5 * sampleRate(); }
62 64
63 AudioDSPKernelProcessor* processor() { return m_kernelProcessor; } 65 AudioDSPKernelProcessor* processor() { return m_kernelProcessor; }
64 const AudioDSPKernelProcessor* processor() const { return m_kernelProcessor; } 66 const AudioDSPKernelProcessor* processor() const { return m_kernelProcessor; }
65 67
66 virtual double tailTime() const = 0; 68 virtual double tailTime() const = 0;
67 virtual double latencyTime() const = 0; 69 virtual double latencyTime() const = 0;
68 70
69 protected: 71 protected:
70 // This raw pointer is safe because the AudioDSPKernelProcessor object is 72 // This raw pointer is safe because the AudioDSPKernelProcessor object is
71 // guaranteed to be kept alive while the AudioDSPKernel object is alive. 73 // guaranteed to be kept alive while the AudioDSPKernel object is alive.
72 AudioDSPKernelProcessor* m_kernelProcessor; 74 AudioDSPKernelProcessor* m_kernelProcessor;
73 float m_sampleRate; 75 float m_sampleRate;
74 }; 76 };
75 77
76 } // namespace blink 78 } // namespace blink
77 79
78 #endif // AudioDSPKernel_h 80 #endif // AudioDSPKernel_h
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