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430b265cd4
The SI prefixes "k", "M", "G" mean "10^3", "10^6", "10^9". The IEC prefixes "Ki", "Mi", "Gi" mean "2^10", "2^20", "2^30". Let's use the correct name, at least in code. Only changes the name of the constants, no other behavior change.
74 lines
2.7 KiB
C++
74 lines
2.7 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/Vector.h>
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#include <LibAudio/ClientConnection.h>
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#include <LibAudio/WavLoader.h>
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#include <LibCore/Timer.h>
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#define PLAYBACK_MANAGER_BUFFER_SIZE 64 * KiB
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#define PLAYBACK_MANAGER_RATE 44100
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class PlaybackManager final {
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public:
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PlaybackManager(NonnullRefPtr<Audio::ClientConnection>);
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~PlaybackManager();
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void play();
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void stop();
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void pause();
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void seek(const int position);
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bool toggle_pause();
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void set_loader(OwnPtr<Audio::WavLoader>&&);
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int last_seek() const { return m_last_seek; }
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bool is_paused() const { return m_paused; }
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float total_length() const { return m_total_length; }
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RefPtr<Audio::Buffer> current_buffer() const { return m_current_buffer; }
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NonnullRefPtr<Audio::ClientConnection> connection() const { return m_connection; }
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Function<void()> on_update;
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private:
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void next_buffer();
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void set_paused(bool);
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void load_next_buffer();
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void remove_dead_buffers();
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bool m_paused { true };
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size_t m_next_ptr { 0 };
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size_t m_last_seek { 0 };
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float m_total_length { 0 };
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OwnPtr<Audio::WavLoader> m_loader { nullptr };
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NonnullRefPtr<Audio::ClientConnection> m_connection;
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RefPtr<Audio::Buffer> m_next_buffer;
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RefPtr<Audio::Buffer> m_current_buffer;
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Vector<RefPtr<Audio::Buffer>> m_buffers;
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RefPtr<Core::Timer> m_timer;
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};
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