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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Vector.h>
#include <LibAudio/Buffer.h>
#include <LibAudio/ClientConnection.h>
#include <LibAudio/Loader.h>
#include <LibCore/Timer.h>
#define PLAYBACK_MANAGER_BUFFER_SIZE 48 * KiB
#define PLAYBACK_MANAGER_RATE 44100
class PlaybackManager final {
public:
PlaybackManager(NonnullRefPtr<Audio::ClientConnection>);
~PlaybackManager();
void play();
void stop();
void pause();
void seek(const int position);
void loop(bool);
bool toggle_pause();
void set_loader(NonnullRefPtr<Audio::Loader>&&);
int last_seek() const { return m_last_seek; }
bool is_paused() const { return m_paused; }
float total_length() const { return m_total_length; }
RefPtr<Audio::Buffer> current_buffer() const { return m_current_buffer; }
NonnullRefPtr<Audio::ClientConnection> connection() const { return m_connection; }
Function<void()> on_update;
Function<void(Audio::Buffer&)> on_load_sample_buffer;
Function<void()> on_finished_playing;
private:
void next_buffer();
void set_paused(bool);
void load_next_buffer();
void remove_dead_buffers();
bool m_paused { true };
bool m_loop = { false };
size_t m_next_ptr { 0 };
size_t m_last_seek { 0 };
float m_total_length { 0 };
RefPtr<Audio::Loader> m_loader { nullptr };
NonnullRefPtr<Audio::ClientConnection> m_connection;
RefPtr<Audio::Buffer> m_next_buffer;
RefPtr<Audio::Buffer> m_current_buffer;
Vector<RefPtr<Audio::Buffer>> m_buffers;
RefPtr<Core::Timer> m_timer;
};
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