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#include "beattracker.hpp"
#include "audioprovider.hpp"
#include <QObject>
#include <aubio/aubio.h>
namespace caelestia {
BeatTracker::BeatTracker(uint_t sampleRate, uint_t hopSize, QObject* parent)
: AudioProvider(static_cast<int>(sampleRate), static_cast<int>(hopSize), parent)
, m_tempo(new_aubio_tempo("default", 1024, hopSize, sampleRate))
, m_in(new_fvec(hopSize))
, m_out(new_fvec(2))
, m_bpm(120) {};
BeatTracker::~BeatTracker() {
del_aubio_tempo(m_tempo);
del_fvec(m_in);
del_fvec(m_out);
}
smpl_t BeatTracker::bpm() const {
return m_bpm;
}
void BeatTracker::processData() {
process(m_in->data);
}
void BeatTracker::consumeData() {
aubio_tempo_do(m_tempo, m_in, m_out);
if (m_out->data[0] != 0.0f) {
m_bpm = aubio_tempo_get_bpm(m_tempo);
emit bpmChanged();
emit beat(m_bpm);
}
}
} // namespace caelestia
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