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Side by Side Diff: third_party/WebKit/Source/platform/audio/AudioDSPKernelProcessor.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
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37 #include "wtf/Vector.h" 37 #include "wtf/Vector.h"
38 #include <memory> 38 #include <memory>
39 39
40 namespace blink { 40 namespace blink {
41 41
42 class AudioBus; 42 class AudioBus;
43 class AudioDSPKernel; 43 class AudioDSPKernel;
44 class AudioProcessor; 44 class AudioProcessor;
45 45
46 // AudioDSPKernelProcessor processes one input -> one output (N channels each) 46 // AudioDSPKernelProcessor processes one input -> one output (N channels each)
47 // It uses one AudioDSPKernel object per channel to do the processing, thus ther e is no cross-channel processing. 47 // It uses one AudioDSPKernel object per channel to do the processing, thus
48 // Despite this limitation it turns out to be a very common and useful type of p rocessor. 48 // there is no cross-channel processing. Despite this limitation it turns out
49 // to be a very common and useful type of processor.
49 50
50 class PLATFORM_EXPORT AudioDSPKernelProcessor : public AudioProcessor { 51 class PLATFORM_EXPORT AudioDSPKernelProcessor : public AudioProcessor {
51 public: 52 public:
52 // numberOfChannels may be later changed if object is not yet in an "initializ ed" state 53 // numberOfChannels may be later changed if object is not yet in an
54 // "initialized" state
53 AudioDSPKernelProcessor(float sampleRate, unsigned numberOfChannels); 55 AudioDSPKernelProcessor(float sampleRate, unsigned numberOfChannels);
54 56
55 // Subclasses create the appropriate type of processing kernel here. 57 // Subclasses create the appropriate type of processing kernel here.
56 // We'll call this to create a kernel for each channel. 58 // We'll call this to create a kernel for each channel.
57 virtual std::unique_ptr<AudioDSPKernel> createKernel() = 0; 59 virtual std::unique_ptr<AudioDSPKernel> createKernel() = 0;
58 60
59 // AudioProcessor methods 61 // AudioProcessor methods
60 void initialize() override; 62 void initialize() override;
61 void uninitialize() override; 63 void uninitialize() override;
62 void process(const AudioBus* source, 64 void process(const AudioBus* source,
63 AudioBus* destination, 65 AudioBus* destination,
64 size_t framesToProcess) override; 66 size_t framesToProcess) override;
65 void reset() override; 67 void reset() override;
66 void setNumberOfChannels(unsigned) override; 68 void setNumberOfChannels(unsigned) override;
67 unsigned numberOfChannels() const override { return m_numberOfChannels; } 69 unsigned numberOfChannels() const override { return m_numberOfChannels; }
68 70
69 double tailTime() const override; 71 double tailTime() const override;
70 double latencyTime() const override; 72 double latencyTime() const override;
71 73
72 protected: 74 protected:
73 Vector<std::unique_ptr<AudioDSPKernel>> m_kernels; 75 Vector<std::unique_ptr<AudioDSPKernel>> m_kernels;
74 mutable Mutex m_processLock; 76 mutable Mutex m_processLock;
75 bool m_hasJustReset; 77 bool m_hasJustReset;
76 }; 78 };
77 79
78 } // namespace blink 80 } // namespace blink
79 81
80 #endif // AudioDSPKernelProcessor_h 82 #endif // AudioDSPKernelProcessor_h
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