audio_block.hpp

// Copyright Take Vos 2020.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt)
 
#pragma once
 
#include "../hires_utc_clock.hpp"
#include "../required.hpp"
#include "../assert.hpp"
#include <span>
 
namespace tt {
 
struct audio_block {
    static constexpr ssize_t samples_per_vector = 16;
 
    ssize_t number_of_vectors;
 
    [[nodiscard]] ssize_t number_of_samples() const noexcept
    {
        return number_of_vectors * samples_per_vector;
    }
 
    ssize_t number_of_channels;
 
    std::span<float> samples;
 
    [[nodiscard]] std::span<float> samples_for_channel(ssize_t index) noexcept
    {
        tt_axiom(index >= 0 && index < number_of_channels);
        if (samples.empty()) {
            return {};
        } else {
            tt_axiom(ssize(samples) == number_of_channels * number_of_samples());
            return samples.subspan(index * number_of_samples(), number_of_samples());
        }
    }
 
    uint64_t sample_position;
 
    hires_utc_clock::time_point timestamp;
 
    double word_clock_sample_rate;
 
    double device_sample_rate;
 
    bool corrupt;
 
    bool silent;
};
 
 
}