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/*
* Copyright (c) 2021-2022, kleines Filmröllchen <filmroellchen@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Types.h>
#include <LibDSP/Processor.h>
#include <LibDSP/ProcessorParameter.h>
#include <LibDSP/Transport.h>
namespace DSP::Effects {
// A simple digital delay effect using a delay buffer.
// This is based on Piano's old built-in delay.
class Delay : public EffectProcessor {
public:
Delay(NonnullRefPtr<Transport>);
private:
virtual void process_impl(Signal const&, Signal&) override;
void handle_delay_time_change();
ProcessorRangeParameter m_delay_decay;
ProcessorRangeParameter m_delay_time;
ProcessorRangeParameter m_dry_gain;
Vector<Sample> m_delay_buffer;
size_t m_delay_index { 0 };
};
// A simple effect that applies volume, mute and pan to its input signal.
// Convenient for attenuating signals in the middle of long chains.
class Mastering : public EffectProcessor {
public:
Mastering(NonnullRefPtr<Transport>);
// The mastering processor can be used by the track and therefore needs to be able to write to a fixed array directly.
// Otherwise, Track needs to do more unnecessary sample data copies.
void process_to_fixed_array(Signal const&, FixedArray<Sample>&);
private:
virtual void process_impl(Signal const&, Signal&) override;
ProcessorRangeParameter m_pan;
ProcessorRangeParameter m_volume;
ProcessorBooleanParameter m_muted;
};
}
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