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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/Vector.h>
#include <LibAudio/ClientConnection.h>
#include <LibAudio/WavLoader.h>
#include <LibCore/Timer.h>
#define PLAYBACK_MANAGER_BUFFER_SIZE 64 * KB
#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);
bool toggle_pause();
void set_loader(OwnPtr<Audio::WavLoader>&&);
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;
private:
void next_buffer();
void set_paused(bool);
void load_next_buffer();
void remove_dead_buffers();
bool m_paused { true };
size_t m_next_ptr { 0 };
size_t m_last_seek { 0 };
float m_total_length { 0 };
OwnPtr<Audio::WavLoader> 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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