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| 1 /* | 1 /* |
| 2 * Copyright (C) 2011 Google Inc. All rights reserved. | 2 * Copyright (C) 2011 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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| 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/DynamicsCompressor.h" | 33 #include "platform/audio/DynamicsCompressor.h" |
| 34 | 34 |
| 35 #include "platform/audio/AudioBus.h" | 35 #include "platform/audio/AudioBus.h" |
| 36 #include "platform/audio/AudioUtilities.h" | 36 #include "platform/audio/AudioUtilities.h" |
| 37 #include "wtf/MathExtras.h" | 37 #include "wtf/MathExtras.h" |
| 38 | 38 |
| 39 namespace WebCore { | 39 namespace blink { |
| 40 | 40 |
| 41 using namespace AudioUtilities; | 41 using namespace AudioUtilities; |
| 42 | 42 |
| 43 DynamicsCompressor::DynamicsCompressor(float sampleRate, unsigned numberOfChanne
ls) | 43 DynamicsCompressor::DynamicsCompressor(float sampleRate, unsigned numberOfChanne
ls) |
| 44 : m_numberOfChannels(numberOfChannels) | 44 : m_numberOfChannels(numberOfChannels) |
| 45 , m_sampleRate(sampleRate) | 45 , m_sampleRate(sampleRate) |
| 46 , m_compressor(sampleRate, numberOfChannels) | 46 , m_compressor(sampleRate, numberOfChannels) |
| 47 { | 47 { |
| 48 // Uninitialized state - for parameter recalculation. | 48 // Uninitialized state - for parameter recalculation. |
| 49 m_lastFilterStageRatio = -1; | 49 m_lastFilterStageRatio = -1; |
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| 200 | 200 |
| 201 void DynamicsCompressor::setNumberOfChannels(unsigned numberOfChannels) | 201 void DynamicsCompressor::setNumberOfChannels(unsigned numberOfChannels) |
| 202 { | 202 { |
| 203 m_sourceChannels = adoptArrayPtr(new const float* [numberOfChannels]); | 203 m_sourceChannels = adoptArrayPtr(new const float* [numberOfChannels]); |
| 204 m_destinationChannels = adoptArrayPtr(new float* [numberOfChannels]); | 204 m_destinationChannels = adoptArrayPtr(new float* [numberOfChannels]); |
| 205 | 205 |
| 206 m_compressor.setNumberOfChannels(numberOfChannels); | 206 m_compressor.setNumberOfChannels(numberOfChannels); |
| 207 m_numberOfChannels = numberOfChannels; | 207 m_numberOfChannels = numberOfChannels; |
| 208 } | 208 } |
| 209 | 209 |
| 210 } // namespace WebCore | 210 } // namespace blink |
| 211 | 211 |
| 212 #endif // ENABLE(WEB_AUDIO) | 212 #endif // ENABLE(WEB_AUDIO) |
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