76 lines
3.1 KiB
C++
76 lines
3.1 KiB
C++
/*
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* Copyright (C) 2010, Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "AnalyserOptions.h"
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#include "AudioBasicInspectorNode.h"
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#include "RealtimeAnalyser.h"
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namespace WebCore {
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class AnalyserNode final : public AudioBasicInspectorNode {
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WTF_MAKE_ISO_ALLOCATED(AnalyserNode);
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public:
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static ExceptionOr<Ref<AnalyserNode>> create(BaseAudioContext&, const AnalyserOptions& = { });
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virtual ~AnalyserNode();
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unsigned fftSize() const { return m_analyser.fftSize(); }
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ExceptionOr<void> setFftSize(unsigned);
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unsigned frequencyBinCount() const { return m_analyser.frequencyBinCount(); }
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ExceptionOr<void> setMinMaxDecibels(double minDecibels, double maxDecibels);
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ExceptionOr<void> setMinDecibels(double);
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double minDecibels() const { return m_analyser.minDecibels(); }
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ExceptionOr<void> setMaxDecibels(double);
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double maxDecibels() const { return m_analyser.maxDecibels(); }
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ExceptionOr<void> setSmoothingTimeConstant(double);
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double smoothingTimeConstant() const { return m_analyser.smoothingTimeConstant(); }
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void getFloatFrequencyData(const Ref<JSC::Float32Array>& array) { m_analyser.getFloatFrequencyData(array.get()); }
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void getByteFrequencyData(const Ref<JSC::Uint8Array>& array) { m_analyser.getByteFrequencyData(array.get()); }
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void getFloatTimeDomainData(const Ref<JSC::Float32Array>& array) { m_analyser.getFloatTimeDomainData(array.get()); }
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void getByteTimeDomainData(const Ref<JSC::Uint8Array>& array) { m_analyser.getByteTimeDomainData(array.get()); }
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private:
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AnalyserNode(BaseAudioContext&);
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void process(size_t framesToProcess) final;
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void updatePullStatus() final;
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double tailTime() const final;
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double latencyTime() const final { return 0; }
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bool requiresTailProcessing() const final;
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bool propagatesSilence() const final;
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RealtimeAnalyser m_analyser;
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};
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} // namespace WebCore
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