gainnode.h

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
#pragma once
 
// Std includes
#include <atomic>
 
// Audio includes
#include <audio/core/audionode.h>
#include <audio/core/audionodemanager.h>
#include <audio/utility/linearsmoothedvalue.h>
 
namespace nap
{
    namespace audio
    {
        
        class NAPAPI GainNode : public Node
        {
            RTTI_ENABLE(Node)
        
        public:
            GainNode(NodeManager& manager, ControllerValue initValue = 1, unsigned int stepCount = 64) : Node(manager), mGain(initValue, stepCount) { }
            
            InputPin audioInput = {this};
            
            OutputPin audioOutput = {this};
            
            void setGain(ControllerValue gain, TimeValue smoothTime);
            
            ControllerValue getGain() const { return mGain.getValue(); }
        
        private:
            void process() override;
            
            LinearSmoothedValue<ControllerValue> mGain; // Current multiplication factor of the output signal.
        };
        
    }
}