audio_input_processor.h

// SPDX-FileCopyrightText: © 2026 Alexandros Theodotou <alex@zrythm.org>
// SPDX-License-Identifier: LicenseRef-ZrythmLicense
 
#pragma once
 
#include <span>
 
#include "dsp/processor_base.h"
#include "utils/units.h"
 
#include <QObject>
 
namespace zrythm::dsp
{

class AudioInputProcessor final : public QObject, public ProcessorBase
{
  Q_OBJECT
 
public:
  using InputDataProvider = std::function<std::span<const float * const> ()>;
 
  AudioInputProcessor (
    InputDataProvider         provider,
    units::channel_count_t    hw_input_channel_count,
    ProcessorBaseDependencies dependencies,
    QObject *                 parent = nullptr);
 
  void custom_process_block (
    dsp::graph::ProcessBlockInfo time_nfo,
    const dsp::ITransport       &transport,
    const dsp::TempoMap &tempo_map) noexcept [[clang::nonblocking]] override;
 
  dsp::AudioPort *
  find_output_port (int first_channel_index, bool stereo) const noexcept
    [[clang::nonblocking]];
 
private:
  InputDataProvider provider_;
 
  struct PortMapping
  {
    AudioPort * port; 
    int         src_channel_start;
    units::channel_count_t src_channel_count;
  };
 
  std::vector<PortMapping> port_mappings_;
};
 
}