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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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| 44 m_parameter4(detune), | 44 m_parameter4(detune), |
| 45 m_filterCoefficientsDirty(true), | 45 m_filterCoefficientsDirty(true), |
| 46 m_hasSampleAccurateValues(false) {} | 46 m_hasSampleAccurateValues(false) {} |
| 47 | 47 |
| 48 BiquadProcessor::~BiquadProcessor() { | 48 BiquadProcessor::~BiquadProcessor() { |
| 49 if (isInitialized()) | 49 if (isInitialized()) |
| 50 uninitialize(); | 50 uninitialize(); |
| 51 } | 51 } |
| 52 | 52 |
| 53 std::unique_ptr<AudioDSPKernel> BiquadProcessor::createKernel() { | 53 std::unique_ptr<AudioDSPKernel> BiquadProcessor::createKernel() { |
| 54 return makeUnique<BiquadDSPKernel>(this); | 54 return WTF::makeUnique<BiquadDSPKernel>(this); |
| 55 } | 55 } |
| 56 | 56 |
| 57 void BiquadProcessor::checkForDirtyCoefficients() { | 57 void BiquadProcessor::checkForDirtyCoefficients() { |
| 58 // Deal with smoothing / de-zippering. Start out assuming filter parameters | 58 // Deal with smoothing / de-zippering. Start out assuming filter parameters |
| 59 // are not changing. | 59 // are not changing. |
| 60 | 60 |
| 61 // The BiquadDSPKernel objects rely on this value to see if they need to | 61 // The BiquadDSPKernel objects rely on this value to see if they need to |
| 62 // re-compute their internal filter coefficients. | 62 // re-compute their internal filter coefficients. |
| 63 m_filterCoefficientsDirty = false; | 63 m_filterCoefficientsDirty = false; |
| 64 m_hasSampleAccurateValues = false; | 64 m_hasSampleAccurateValues = false; |
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| 127 | 127 |
| 128 void BiquadProcessor::getFrequencyResponse(int nFrequencies, | 128 void BiquadProcessor::getFrequencyResponse(int nFrequencies, |
| 129 const float* frequencyHz, | 129 const float* frequencyHz, |
| 130 float* magResponse, | 130 float* magResponse, |
| 131 float* phaseResponse) { | 131 float* phaseResponse) { |
| 132 // Compute the frequency response on a separate temporary kernel | 132 // Compute the frequency response on a separate temporary kernel |
| 133 // to avoid interfering with the processing running in the audio | 133 // to avoid interfering with the processing running in the audio |
| 134 // thread on the main kernels. | 134 // thread on the main kernels. |
| 135 | 135 |
| 136 std::unique_ptr<BiquadDSPKernel> responseKernel = | 136 std::unique_ptr<BiquadDSPKernel> responseKernel = |
| 137 makeUnique<BiquadDSPKernel>(this); | 137 WTF::makeUnique<BiquadDSPKernel>(this); |
| 138 responseKernel->getFrequencyResponse(nFrequencies, frequencyHz, magResponse, | 138 responseKernel->getFrequencyResponse(nFrequencies, frequencyHz, magResponse, |
| 139 phaseResponse); | 139 phaseResponse); |
| 140 } | 140 } |
| 141 | 141 |
| 142 } // namespace blink | 142 } // namespace blink |
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