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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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27 */ | 27 */ |
28 | 28 |
29 #include "config.h" | 29 #include "config.h" |
30 | 30 |
31 #if ENABLE(WEB_AUDIO) | 31 #if ENABLE(WEB_AUDIO) |
32 | 32 |
33 #include "platform/audio/FFTConvolver.h" | 33 #include "platform/audio/FFTConvolver.h" |
34 | 34 |
35 #include "platform/audio/VectorMath.h" | 35 #include "platform/audio/VectorMath.h" |
36 | 36 |
37 namespace WebCore { | 37 namespace blink { |
38 | 38 |
39 using namespace VectorMath; | 39 using namespace VectorMath; |
40 | 40 |
41 FFTConvolver::FFTConvolver(size_t fftSize) | 41 FFTConvolver::FFTConvolver(size_t fftSize) |
42 : m_frame(fftSize) | 42 : m_frame(fftSize) |
43 , m_readWriteIndex(0) | 43 , m_readWriteIndex(0) |
44 , m_inputBuffer(fftSize) // 2nd half of buffer is always zeroed | 44 , m_inputBuffer(fftSize) // 2nd half of buffer is always zeroed |
45 , m_outputBuffer(fftSize) | 45 , m_outputBuffer(fftSize) |
46 , m_lastOverlapBuffer(fftSize / 2) | 46 , m_lastOverlapBuffer(fftSize / 2) |
47 { | 47 { |
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108 } | 108 } |
109 } | 109 } |
110 } | 110 } |
111 | 111 |
112 void FFTConvolver::reset() | 112 void FFTConvolver::reset() |
113 { | 113 { |
114 m_lastOverlapBuffer.zero(); | 114 m_lastOverlapBuffer.zero(); |
115 m_readWriteIndex = 0; | 115 m_readWriteIndex = 0; |
116 } | 116 } |
117 | 117 |
118 } // namespace WebCore | 118 } // namespace blink |
119 | 119 |
120 #endif // ENABLE(WEB_AUDIO) | 120 #endif // ENABLE(WEB_AUDIO) |
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