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/*
* 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.
*/
#pragma once
#include "AnalyserOptions.h"
#include "AudioBasicInspectorNode.h"
#include "RealtimeAnalyser.h"
namespace WebCore {
class AnalyserNode final : public AudioBasicInspectorNode {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(AnalyserNode);
public:
static ExceptionOr<Ref<AnalyserNode>> create(BaseAudioContext&, const AnalyserOptions& = { });
virtual ~AnalyserNode();
unsigned fftSize() const { return m_analyser.fftSize(); }
ExceptionOr<void> setFftSize(unsigned);
unsigned frequencyBinCount() const { return m_analyser.frequencyBinCount(); }
ExceptionOr<void> setMinMaxDecibels(double minDecibels, double maxDecibels);
ExceptionOr<void> setMinDecibels(double);
double minDecibels() const { return m_analyser.minDecibels(); }
ExceptionOr<void> setMaxDecibels(double);
double maxDecibels() const { return m_analyser.maxDecibels(); }
ExceptionOr<void> setSmoothingTimeConstant(double);
double smoothingTimeConstant() const { return m_analyser.smoothingTimeConstant(); }
void getFloatFrequencyData(const Ref<JSC::Float32Array>& array) { m_analyser.getFloatFrequencyData(array.get()); }
void getByteFrequencyData(const Ref<JSC::Uint8Array>& array) { m_analyser.getByteFrequencyData(array.get()); }
void getFloatTimeDomainData(const Ref<JSC::Float32Array>& array) { m_analyser.getFloatTimeDomainData(array.get()); }
void getByteTimeDomainData(const Ref<JSC::Uint8Array>& array) { m_analyser.getByteTimeDomainData(array.get()); }
private:
AnalyserNode(BaseAudioContext&);
void process(size_t framesToProcess) final;
void updatePullStatus() final;
double tailTime() const final;
double latencyTime() const final { return 0; }
bool requiresTailProcessing() const final;
bool propagatesSilence() const final;
RealtimeAnalyser m_analyser;
};
} // namespace WebCore
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