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#pragma once
#include <QVector>
#include "audio/frame.h"
#include "audio/types.h"
#include "track/bpm.h"
#include "util/math.h"
class BeatUtils {
public:
struct ConstRegion {
mixxx::audio::FramePos firstBeat;
mixxx::audio::FrameDiff_t beatLength;
};
static mixxx::Bpm calculateBpm(const QVector<mixxx::audio::FramePos>& beats,
mixxx::audio::SampleRate sampleRate);
static QVector<ConstRegion> retrieveConstRegions(
const QVector<mixxx::audio::FramePos>& coarseBeats,
mixxx::audio::SampleRate sampleRate);
static mixxx::Bpm calculateAverageBpm(int numberOfBeats,
mixxx::audio::SampleRate sampleRate,
mixxx::audio::FramePos lowerFrame,
mixxx::audio::FramePos upperFrame);
static mixxx::Bpm makeConstBpm(
const QVector<ConstRegion>& constantRegions,
mixxx::audio::SampleRate sampleRate,
mixxx::audio::FramePos* pFirstBeat);
static mixxx::audio::FramePos adjustPhase(
mixxx::audio::FramePos firstBeat,
mixxx::Bpm bpm,
mixxx::audio::SampleRate sampleRate,
const QVector<mixxx::audio::FramePos>& beats);
static QVector<mixxx::audio::FramePos> getBeats(const QVector<ConstRegion>& constantRegions);
static mixxx::Bpm roundBpmWithinRange(
mixxx::Bpm minBpm, mixxx::Bpm centerBpm, mixxx::Bpm maxBpm);
};
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