Threshold.h

Go to the documentation of this file.

/*******************************************************************************
 * Copyright 2009-2016 Jörg Müller
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
 
#pragma once

 
#include "fx/Effect.h"
 
AUD_NAMESPACE_BEGIN
 
class CallbackIIRFilterReader;

class AUD_API Threshold : public Effect
{
private:
    const float m_threshold;
 
    // delete copy constructor and operator=
    Threshold(const Threshold&) = delete;
    Threshold& operator=(const Threshold&) = delete;
 
public:
    Threshold(std::shared_ptr<ISound> sound, float threshold = 0.0f);

    float getThreshold() const;
 
    virtual std::shared_ptr<IReader> createReader();

    static sample_t AUD_LOCAL thresholdFilter(CallbackIIRFilterReader* reader, float* threshold);

    static void AUD_LOCAL endThresholdFilter(float* threshold);
};
 
AUD_NAMESPACE_END