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#include "beattracker.hpp"
#include "audioprovider.hpp"
#include <QObject>
#include <aubio/aubio.h>
namespace caelestia {
BeatWorker::BeatWorker(uint_t sampleRate, uint_t hopSize, QObject* parent)
: AudioWorker(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)) {};
BeatWorker::~BeatWorker() {
del_aubio_tempo(m_tempo);
del_fvec(m_in);
del_fvec(m_out);
}
void BeatWorker::processData() {
process(m_in->data);
}
void BeatWorker::consumeData() {
aubio_tempo_do(m_tempo, m_in, m_out);
if (m_out->data[0] != 0.0f) {
emit beat(aubio_tempo_get_bpm(m_tempo));
}
}
BeatTracker::BeatTracker(uint_t sampleRate, uint_t hopSize, QObject* parent)
: AudioProvider(parent)
, m_bpm(120) {
m_worker = new BeatWorker(sampleRate, hopSize, this);
init();
connect(static_cast<BeatWorker*>(m_worker), &BeatWorker::beat, this, &BeatTracker::updateBpm);
}
smpl_t BeatTracker::bpm() const {
return m_bpm;
}
void BeatTracker::updateBpm(smpl_t bpm) {
if (!qFuzzyCompare(bpm + 1.0f, m_bpm + 1.0f)) {
m_bpm = bpm;
emit bpmChanged();
}
}
} // namespace caelestia
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