delaybank.h

// Copyright (C) 2025 Alexandre St-Onge
// SPDX-License-Identifier: MIT
#pragma once
 
#include "sffdn/audio_buffer.h"
#include "sffdn/audio_processor.h"
#include "sffdn/delay.h"
#include "sffdn/delay_interp.h"
#include "sffdn/types.h"
 
#include <cstdint>
#include <span>
#include <vector>
 
namespace sfFDN
{
 
class DelayBank : public AudioProcessor
{
  public:
    DelayBank(const DelayBankOptions& config = {});
 
    void SetDelays(std::span<const float> delays, uint32_t block_size = 512);
 
    std::vector<float> GetDelays() const;
 
    uint32_t InputChannelCount() const noexcept SFFDN_NONBLOCKING override;
 
    uint32_t OutputChannelCount() const noexcept SFFDN_NONBLOCKING override;
 
    void Clear() override;
 
    void Process(const AudioBuffer& input, AudioBuffer& output) noexcept SFFDN_NONBLOCKING override;
 
    void AddNextInputs(const AudioBuffer& input) noexcept SFFDN_NONBLOCKING;
 
    void GetNextOutputs(AudioBuffer& output) noexcept SFFDN_NONBLOCKING;
 
    std::unique_ptr<AudioProcessor> Clone() const override;
 
  private:
    std::vector<DelayInterp> delays_;
    uint32_t block_size_{128};
    DelayInterpolationType interpolation_type_{DelayInterpolationType::None};
};
} // namespace sfFDN