napaudio/src/audio/component/inputcomponent.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
 
// Nap includes
#include <component.h>
#include <audio/utility/safeptr.h>
 
// Audio includes
#include <audio/component/audiocomponentbase.h>
#include <audio/node/inputnode.h>
#include <audio/node/multiplynode.h>
#include <audio/node/controlnode.h>
 
namespace nap
{
    namespace audio
    {
        class AudioInputComponentInstance;
        
        class NAPAPI AudioInputComponent : public AudioComponentBase
        {
        RTTI_ENABLE(AudioComponentBase)
        DECLARE_COMPONENT(InputComponent, AudioInputComponentInstance)
        public:
            AudioInputComponent() : AudioComponentBase()
            {}
            
            // Properties
            std::vector<int> mChannels; 
            ControllerValue mGain = 1.0; 
            bool mAllowOutOfBoundChannels = true; 
        
        private:
        };
        
        
        class NAPAPI AudioInputComponentInstance : public AudioComponentBaseInstance
        {
            RTTI_ENABLE(AudioComponentBaseInstance)
        public:
            AudioInputComponentInstance(EntityInstance& entity, Component& resource) : AudioComponentBaseInstance(
                    entity, resource)
            {}
            
            // Inherited from ComponentInstance
            bool init(utility::ErrorState& errorState) override;
            
            // Inherited from AudioComponentBaseInstance
            int getChannelCount() const override { return mGainNodes.size(); }
            
            OutputPin* getOutputForChannel(int channel) override { return &mGainNodes[channel]->audioOutput; }
            
            void setGain(ControllerValue gain);
            
            ControllerValue getGain() const;
        
        private:
            std::vector<SafeOwner<Node>> mInputNodes; // Nodes pulling audio input data out of the ADC inputs from the node manager
            std::vector<SafeOwner<MultiplyNode>> mGainNodes; // Nodes to control gain level of the input
            SafeOwner<ControlNode> mGainControl; // Node to control the gain for each channel.
            
            ControllerValue mGain = 1; // Gain factor of the output signal.
        };
        
    }
    
}