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SoundPlayer: Added playback controls

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The playback of a file can now be paused, stopped, continued and the
user can seek to any part of the file.
This commit is contained in:
Till Mayer 2019-11-04 19:45:19 +01:00 • committed by Andreas Kling
parent 2f13517a1a
commit 77f3c12dc9
7 changed files with 405 additions and 49 deletions
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48
Applications/SoundPlayer/PlaybackManager.h Normal file
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#pragma once
#include <AK/Vector.h>
#include <LibAudio/AClientConnection.h>
#include <LibAudio/AWavLoader.h>
#include <LibCore/CTimer.h>
#define PLAYBACK_MANAGER_BUFFER_SIZE 64 * KB
#define PLAYBACK_MANAGER_RATE 44100
class PlaybackManager final {
public:
PlaybackManager(NonnullRefPtr<AClientConnection>, AWavLoader&);
~PlaybackManager();
void play();
void stop();
void pause();
void seek(const int position);
bool toggle_pause();
int last_seek() const { return m_last_seek; }
bool is_paused() const { return m_paused; }
float total_length() const { return m_total_length; }
RefPtr<ABuffer> current_buffer() const { return m_current_buffer; }
NonnullRefPtr<AClientConnection> connection() const { return m_connection; }
AWavLoader& loader() const { return m_loader; }
Function<void()> on_update;
private:
void next_buffer();
void set_paused(bool);
void load_next_buffer();
void remove_dead_buffers();
bool m_paused { true };
int m_next_ptr { 0 };
int m_last_seek { 0 };
float m_total_length;
AWavLoader& m_loader;
NonnullRefPtr<AClientConnection> m_connection;
RefPtr<ABuffer> m_next_buffer;
RefPtr<ABuffer> m_current_buffer;
Vector<RefPtr<ABuffer>> m_buffers;
RefPtr<CTimer> m_timer;
};