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39b61fe331
Session should be the object holding the list of inputs parameters (e.g. synchrony) and the list of source callbacks. This also avoids mixing input when copying sources. Code could be improved but is operational.
77 lines
1.7 KiB
C++
77 lines
1.7 KiB
C++
#ifndef METRONOME_H
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#define METRONOME_H
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#include <chrono>
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#include <functional>
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class Metronome
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{
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// Private Constructor
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Metronome();
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Metronome(Metronome const& copy) = delete;
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Metronome& operator=(Metronome const& copy) = delete;
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public:
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typedef enum {
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SYNC_NONE = 0,
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SYNC_BEAT,
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SYNC_PHASE
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} Synchronicity;
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static Metronome& manager ()
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{
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// The only instance
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static Metronome _instance;
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return _instance;
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}
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bool init ();
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void terminate ();
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void setEnabled (bool on);
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bool enabled () const;
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void setTempo (double t);
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double tempo () const;
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void setQuantum (double q);
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double quantum () const;
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void setStartStopSync (bool on);
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bool startStopSync () const;
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void restart();
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// get beat and phase
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double beats () const;
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double phase () const;
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// mechanisms to delay execution to next beat
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std::chrono::microseconds timeToBeat();
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void executeAtBeat( std::function<void()> f );
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// mechanisms to delay execution to next phase
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std::chrono::microseconds timeToPhase();
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void executeAtPhase( std::function<void()> f );
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// get time to sync, in milisecond
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float timeToSync(Synchronicity sync);
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// get number of connected peers
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size_t peers () const;
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};
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/// Example calls to executeAtBeat
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///
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/// With a Lamda function calling a member function of an object
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/// - without parameter
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/// Metronome::manager().executeAtBeat( std::bind([](MediaPlayer *p) { p->rewind(); }, mediaplayer_) );
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///
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/// - with parameter
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/// Metronome::manager().executeAtBeat( std::bind([](MediaPlayer *p, bool o) { p->play(o); }, mediaplayer_, on) );
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///
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#endif // METRONOME_H
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