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/*
* Copyright (C) 2011, 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 DynamicsCompressorNode_h
#define DynamicsCompressorNode_h
#include "base/gtest_prod_util.h"
#include "modules/ModulesExport.h"
#include "modules/webaudio/AudioNode.h"
#include "modules/webaudio/AudioParam.h"
#include "wtf/OwnPtr.h"
namespace blink {
class AbstractAudioContext;
class DynamicsCompressor;
class MODULES_EXPORT DynamicsCompressorHandler final : public AudioHandler {
public:
static PassRefPtr<DynamicsCompressorHandler> create(AudioNode&, float sampleRate, AudioParamHandler& threshold, AudioParamHandler& knee, AudioParamHandler& ratio, AudioParamHandler& reduction, AudioParamHandler& attack, AudioParamHandler& release);
~DynamicsCompressorHandler();
// AudioHandler
void process(size_t framesToProcess) override;
void initialize() override;
void clearInternalStateWhenDisabled() override;
private:
DynamicsCompressorHandler(AudioNode&, float sampleRate, AudioParamHandler& threshold, AudioParamHandler& knee, AudioParamHandler& ratio, AudioParamHandler& reduction, AudioParamHandler& attack, AudioParamHandler& release);
double tailTime() const override;
double latencyTime() const override;
OwnPtr<DynamicsCompressor> m_dynamicsCompressor;
RefPtr<AudioParamHandler> m_threshold;
RefPtr<AudioParamHandler> m_knee;
RefPtr<AudioParamHandler> m_ratio;
RefPtr<AudioParamHandler> m_reduction;
RefPtr<AudioParamHandler> m_attack;
RefPtr<AudioParamHandler> m_release;
FRIEND_TEST_ALL_PREFIXES(DynamicsCompressorNodeTest, ProcessorLifetime);
};
class MODULES_EXPORT DynamicsCompressorNode final : public AudioNode {
DEFINE_WRAPPERTYPEINFO();
public:
static DynamicsCompressorNode* create(AbstractAudioContext&, float sampleRate);
DECLARE_VIRTUAL_TRACE();
AudioParam* threshold() const;
AudioParam* knee() const;
AudioParam* ratio() const;
AudioParam* reduction() const;
AudioParam* attack() const;
AudioParam* release() const;
private:
DynamicsCompressorNode(AbstractAudioContext&, float sampleRate);
DynamicsCompressorHandler& dynamicsCompressorHandler() const;
Member<AudioParam> m_threshold;
Member<AudioParam> m_knee;
Member<AudioParam> m_ratio;
Member<AudioParam> m_reduction;
Member<AudioParam> m_attack;
Member<AudioParam> m_release;
FRIEND_TEST_ALL_PREFIXES(DynamicsCompressorNodeTest, ProcessorLifetime);
};
} // namespace blink
#endif // DynamicsCompressorNode_h
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