| /* |
| * Copyright (C) 2010, Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH |
| * DAMAGE. |
| */ |
| |
| #ifndef AnalyserNode_h |
| #define AnalyserNode_h |
| |
| #include "core/dom/DOMTypedArray.h" |
| #include "modules/webaudio/AudioBasicInspectorNode.h" |
| #include "modules/webaudio/RealtimeAnalyser.h" |
| |
| namespace blink { |
| |
| class BaseAudioContext; |
| class AnalyserOptions; |
| class ExceptionState; |
| |
| class AnalyserHandler final : public AudioBasicInspectorHandler { |
| public: |
| static PassRefPtr<AnalyserHandler> create(AudioNode&, float sampleRate); |
| ~AnalyserHandler() override; |
| |
| // AudioHandler |
| void process(size_t framesToProcess) override; |
| |
| unsigned fftSize() const { return m_analyser.fftSize(); } |
| void setFftSize(unsigned size, ExceptionState&); |
| |
| unsigned frequencyBinCount() const { return m_analyser.frequencyBinCount(); } |
| |
| void setMinDecibels(double k, ExceptionState&); |
| double minDecibels() const { return m_analyser.minDecibels(); } |
| |
| void setMaxDecibels(double k, ExceptionState&); |
| double maxDecibels() const { return m_analyser.maxDecibels(); } |
| |
| void setMinMaxDecibels(double min, double max, ExceptionState&); |
| |
| void setSmoothingTimeConstant(double k, ExceptionState&); |
| double smoothingTimeConstant() const { |
| return m_analyser.smoothingTimeConstant(); |
| } |
| |
| void getFloatFrequencyData(DOMFloat32Array* array, double currentTime) { |
| m_analyser.getFloatFrequencyData(array, currentTime); |
| } |
| void getByteFrequencyData(DOMUint8Array* array, double currentTime) { |
| m_analyser.getByteFrequencyData(array, currentTime); |
| } |
| void getFloatTimeDomainData(DOMFloat32Array* array) { |
| m_analyser.getFloatTimeDomainData(array); |
| } |
| void getByteTimeDomainData(DOMUint8Array* array) { |
| m_analyser.getByteTimeDomainData(array); |
| } |
| |
| private: |
| AnalyserHandler(AudioNode&, float sampleRate); |
| |
| RealtimeAnalyser m_analyser; |
| }; |
| |
| class AnalyserNode final : public AudioBasicInspectorNode { |
| DEFINE_WRAPPERTYPEINFO(); |
| |
| public: |
| static AnalyserNode* create(BaseAudioContext&, ExceptionState&); |
| static AnalyserNode* create(BaseAudioContext*, |
| const AnalyserOptions&, |
| ExceptionState&); |
| |
| unsigned fftSize() const; |
| void setFftSize(unsigned size, ExceptionState&); |
| unsigned frequencyBinCount() const; |
| void setMinDecibels(double, ExceptionState&); |
| double minDecibels() const; |
| void setMaxDecibels(double, ExceptionState&); |
| double maxDecibels() const; |
| void setSmoothingTimeConstant(double, ExceptionState&); |
| double smoothingTimeConstant() const; |
| void getFloatFrequencyData(DOMFloat32Array*); |
| void getByteFrequencyData(DOMUint8Array*); |
| void getFloatTimeDomainData(DOMFloat32Array*); |
| void getByteTimeDomainData(DOMUint8Array*); |
| |
| private: |
| AnalyserNode(BaseAudioContext&); |
| AnalyserHandler& analyserHandler() const; |
| |
| void setMinMaxDecibels(double min, double max, ExceptionState&); |
| }; |
| |
| } // namespace blink |
| |
| #endif // AnalyserNode_h |