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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.
*/
#ifndef AnalyserNode_h
#define AnalyserNode_h
#include "modules/webaudio/AudioBasicInspectorNode.h"
#include "modules/webaudio/RealtimeAnalyser.h"
#include "wtf/Forward.h"
namespace WebCore {
class ExceptionState;
class AnalyserNode : public AudioBasicInspectorNode {
public:
static PassRefPtr<AnalyserNode> create(AudioContext* context, float sampleRate)
{
return adoptRef(new AnalyserNode(context, sampleRate));
}
virtual ~AnalyserNode();
// AudioNode
virtual void process(size_t framesToProcess);
virtual void reset();
// Javascript bindings
unsigned fftSize() const { return m_analyser.fftSize(); }
void setFftSize(unsigned size, ExceptionState&);
unsigned frequencyBinCount() const { return m_analyser.frequencyBinCount(); }
void setMinDecibels(float k, ExceptionState&);
float minDecibels() const { return m_analyser.minDecibels(); }
void setMaxDecibels(float k, ExceptionState&);
float maxDecibels() const { return m_analyser.maxDecibels(); }
void setSmoothingTimeConstant(float k, ExceptionState&);
float smoothingTimeConstant() const { return m_analyser.smoothingTimeConstant(); }
void getFloatFrequencyData(Float32Array* array) { m_analyser.getFloatFrequencyData(array); }
void getByteFrequencyData(Uint8Array* array) { m_analyser.getByteFrequencyData(array); }
void getByteTimeDomainData(Uint8Array* array) { m_analyser.getByteTimeDomainData(array); }
private:
virtual double tailTime() const OVERRIDE { return 0; }
virtual double latencyTime() const OVERRIDE { return 0; }
AnalyserNode(AudioContext*, float sampleRate);
RealtimeAnalyser m_analyser;
};
} // namespace WebCore
#endif // AnalyserNode_h
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