audio_buffer.h

// Copyright (C) 2025 Alexandre St-Onge
// SPDX-License-Identifier: MIT
#pragma once
 
#include "attributes.h"
 
#include <cstddef>
#include <cstdint>
#include <iterator>
#include <span>
 
namespace sfFDN
{
class AudioBuffer
{
  public:
    AudioBuffer() noexcept SFFDN_NONBLOCKING;
 
    explicit AudioBuffer(std::span<float> buffer) noexcept SFFDN_NONBLOCKING;
 
    AudioBuffer(uint32_t frame_size, uint32_t channels, std::span<float> buffer) noexcept SFFDN_NONBLOCKING;
 
    uint32_t SampleCount() const noexcept SFFDN_NONBLOCKING;
 
    uint32_t ChannelCount() const noexcept SFFDN_NONBLOCKING;
 
    float* Data() noexcept SFFDN_NONBLOCKING;
 
    const float* Data() const noexcept SFFDN_NONBLOCKING;
 
    std::span<const float> GetChannelSpan(uint32_t channel) const noexcept SFFDN_NONBLOCKING;
 
    std::span<float> GetChannelSpan(uint32_t channel) noexcept SFFDN_NONBLOCKING;
 
    AudioBuffer GetChannelBuffer(uint32_t channel) const noexcept SFFDN_NONBLOCKING;
 
    AudioBuffer Offset(uint32_t offset, uint32_t frame_size) const noexcept SFFDN_NONBLOCKING;
 
  private:
    uint32_t frame_size_;
    uint32_t channel_count_;
    std::span<float> buffer_;
 
    uint32_t offset_;
    uint32_t chunk_size_;
};
} // namespace sfFDN