fftaudionodecomponent.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
 
// Local includes
#include "fftnode.h"
 
// Nap includes
#include <component.h>
#include <audio/utility/safeptr.h>
 
// Audio includes
#include <audio/component/audiocomponentbase.h>
#include <audio/node/filternode.h>
 
namespace nap
{
    class FFTAudioNodeComponentInstance;
            
    class NAPAPI FFTAudioNodeComponent : public Component
    {
        RTTI_ENABLE(Component)
        DECLARE_COMPONENT(FFTAudioNodeComponent, FFTAudioNodeComponentInstance) 
    public:
        FFTAudioNodeComponent() :
            Component() {}
            
        nap::ComponentPtr<audio::AudioComponentBase> mInput;        
        FFTBuffer::EOverlap mOverlaps = FFTBuffer::EOverlap::One;   
        int mChannel = 0;                                           
    };
        
        
    class NAPAPI FFTAudioNodeComponentInstance : public ComponentInstance
    {
        RTTI_ENABLE(ComponentInstance)
    public:
        FFTAudioNodeComponentInstance(EntityInstance& entity, Component& resource) :
            ComponentInstance(entity, resource) {}
            
        // Initialize the component
        virtual bool init(utility::ErrorState& errorState) override;
            
        void setInput(audio::AudioComponentBaseInstance& input);
 
        virtual const FFTBuffer& getFFTBuffer() const       { assert(mFFTBuffer != nullptr); return *mFFTBuffer; }
 
        virtual FFTBuffer& getFFTBuffer()                   { assert(mFFTBuffer != nullptr); return *mFFTBuffer; }
    
    private:
        ComponentInstancePtr<audio::AudioComponentBase> mInput = { this, &FFTAudioNodeComponent::mInput };  // Pointer to component that outputs this components audio input
 
        FFTAudioNodeComponent* mResource = nullptr;
        audio::SafeOwner<FFTNode> mFFTNode = nullptr;                                                       // Node that computes the FFT
        audio::AudioService* mAudioService = nullptr;
        FFTBuffer* mFFTBuffer = nullptr;
    };
}