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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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26 #define AudioResampler_h | 26 #define AudioResampler_h |
27 | 27 |
28 #include "platform/audio/AudioBus.h" | 28 #include "platform/audio/AudioBus.h" |
29 #include "platform/audio/AudioResamplerKernel.h" | 29 #include "platform/audio/AudioResamplerKernel.h" |
30 #include "platform/audio/AudioSourceProvider.h" | 30 #include "platform/audio/AudioSourceProvider.h" |
31 #include "wtf/Allocator.h" | 31 #include "wtf/Allocator.h" |
32 #include "wtf/Noncopyable.h" | 32 #include "wtf/Noncopyable.h" |
33 #include "wtf/OwnPtr.h" | 33 #include "wtf/OwnPtr.h" |
34 #include "wtf/Vector.h" | 34 #include "wtf/Vector.h" |
35 | 35 |
36 #if ENABLE(WEB_AUDIO) | |
37 | |
38 namespace blink { | 36 namespace blink { |
39 | 37 |
40 // AudioResampler resamples the audio stream from an AudioSourceProvider. | 38 // AudioResampler resamples the audio stream from an AudioSourceProvider. |
41 // The audio stream may be single or multi-channel. | 39 // The audio stream may be single or multi-channel. |
42 // The default constructor defaults to single-channel (mono). | 40 // The default constructor defaults to single-channel (mono). |
43 | 41 |
44 class PLATFORM_EXPORT AudioResampler { | 42 class PLATFORM_EXPORT AudioResampler { |
45 DISALLOW_NEW(); | 43 DISALLOW_NEW(); |
46 WTF_MAKE_NONCOPYABLE(AudioResampler); | 44 WTF_MAKE_NONCOPYABLE(AudioResampler); |
47 public: | 45 public: |
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64 static const double MaxRate; | 62 static const double MaxRate; |
65 | 63 |
66 private: | 64 private: |
67 double m_rate; | 65 double m_rate; |
68 Vector<OwnPtr<AudioResamplerKernel>> m_kernels; | 66 Vector<OwnPtr<AudioResamplerKernel>> m_kernels; |
69 RefPtr<AudioBus> m_sourceBus; | 67 RefPtr<AudioBus> m_sourceBus; |
70 }; | 68 }; |
71 | 69 |
72 } // namespace blink | 70 } // namespace blink |
73 | 71 |
74 #endif // ENABLE(WEB_AUDIO) | |
75 | |
76 #endif // AudioResampler_h | 72 #endif // AudioResampler_h |
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