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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 * | 7 * |
8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. 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 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
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32 #include "platform/audio/ReverbConvolver.h" | 32 #include "platform/audio/ReverbConvolver.h" |
33 #include "wtf/Allocator.h" | 33 #include "wtf/Allocator.h" |
34 #include "wtf/Noncopyable.h" | 34 #include "wtf/Noncopyable.h" |
35 #include "wtf/Vector.h" | 35 #include "wtf/Vector.h" |
36 #include <memory> | 36 #include <memory> |
37 | 37 |
38 namespace blink { | 38 namespace blink { |
39 | 39 |
40 class AudioBus; | 40 class AudioBus; |
41 | 41 |
42 // Multi-channel convolution reverb with channel matrixing - one or more ReverbC
onvolver objects are used internally. | 42 // Multi-channel convolution reverb with channel matrixing - one or more |
| 43 // ReverbConvolver objects are used internally. |
43 | 44 |
44 class PLATFORM_EXPORT Reverb { | 45 class PLATFORM_EXPORT Reverb { |
45 USING_FAST_MALLOC(Reverb); | 46 USING_FAST_MALLOC(Reverb); |
46 WTF_MAKE_NONCOPYABLE(Reverb); | 47 WTF_MAKE_NONCOPYABLE(Reverb); |
47 | 48 |
48 public: | 49 public: |
49 enum { MaxFrameSize = 256 }; | 50 enum { MaxFrameSize = 256 }; |
50 | 51 |
51 // renderSliceSize is a rendering hint, so the FFTs can be optimized to not al
l occur at the same time (very bad when rendering on a real-time thread). | 52 // renderSliceSize is a rendering hint, so the FFTs can be optimized to not |
| 53 // all occur at the same time (very bad when rendering on a real-time thread). |
52 Reverb(AudioBus* impulseResponseBuffer, | 54 Reverb(AudioBus* impulseResponseBuffer, |
53 size_t renderSliceSize, | 55 size_t renderSliceSize, |
54 size_t maxFFTSize, | 56 size_t maxFFTSize, |
55 size_t numberOfChannels, | 57 size_t numberOfChannels, |
56 bool useBackgroundThreads, | 58 bool useBackgroundThreads, |
57 bool normalize); | 59 bool normalize); |
58 | 60 |
59 void process(const AudioBus* sourceBus, | 61 void process(const AudioBus* sourceBus, |
60 AudioBus* destinationBus, | 62 AudioBus* destinationBus, |
61 size_t framesToProcess); | 63 size_t framesToProcess); |
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75 | 77 |
76 Vector<std::unique_ptr<ReverbConvolver>> m_convolvers; | 78 Vector<std::unique_ptr<ReverbConvolver>> m_convolvers; |
77 | 79 |
78 // For "True" stereo processing | 80 // For "True" stereo processing |
79 RefPtr<AudioBus> m_tempBuffer; | 81 RefPtr<AudioBus> m_tempBuffer; |
80 }; | 82 }; |
81 | 83 |
82 } // namespace blink | 84 } // namespace blink |
83 | 85 |
84 #endif // Reverb_h | 86 #endif // Reverb_h |
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