void BpmControl::slotAdjustBeatsSlower(double v) {
BeatsPointer pBeats = m_pBeats;
if (v > 0 && pBeats && (pBeats->getCapabilities() & Beats::BEATSCAP_SETBPM)) {
double new_bpm = math_max(10.0, pBeats->getBpm() - .01);
pBeats->setBpm(new_bpm);
}
}
void AnalyserBeats::finalise(TrackPointer tio) {
if (m_pVamp == NULL) {
return;
}
// Call End() here, because the number of total samples may have been
// estimated incorrectly.
bool success = m_pVamp->End();
qDebug() << "Beat Calculation" << (success ? "complete" : "failed");
QVector<double> beats = m_pVamp->GetInitFramesVector();
delete m_pVamp;
m_pVamp = NULL;
if (beats.isEmpty()) {
qDebug() << "Could not detect beat positions from Vamp.";
return;
}
QHash<QString, QString> extraVersionInfo = getExtraVersionInfo(
m_pluginId, m_bPreferencesFastAnalysis);
BeatsPointer pBeats = BeatFactory::makePreferredBeats(
tio, beats, extraVersionInfo,
m_bPreferencesFixedTempo, m_bPreferencesOffsetCorrection,
m_iSampleRate, m_iTotalSamples,
m_iMinBpm, m_iMaxBpm);
BeatsPointer pCurrentBeats = tio->getBeats();
// If the track has no beats object then set our newly generated one
// regardless of beat lock.
if (!pCurrentBeats) {
tio->setBeats(pBeats);
return;
}
// If the track received the beat lock while we were analyzing it then we
// abort setting it.
if (tio->hasBpmLock()) {
qDebug() << "Track was BPM-locked as we were analysing it. Aborting analysis.";
return;
}
// If the user prefers to replace old beatgrids with newly generated ones or
// the old beatgrid has 0-bpm then we replace it.
bool zeroCurrentBpm = pCurrentBeats->getBpm() == 0.0f;
if (m_bPreferencesReanalyzeOldBpm || zeroCurrentBpm) {
if (zeroCurrentBpm) {
qDebug() << "Replacing 0-BPM beatgrid with a" << pBeats->getBpm()
<< "beatgrid.";
}
tio->setBeats(pBeats);
return;
}
// If we got here then the user doesn't want to replace the beatgrid but
// since the first beat is zero we'll apply the offset we just detected.
double currentFirstBeat = pCurrentBeats->findNextBeat(0);
double newFirstBeat = pBeats->findNextBeat(0);
if (currentFirstBeat == 0.0 && newFirstBeat > 0) {
pCurrentBeats->translate(newFirstBeat);
}
}
// TODO(XXX): Get rid of the horrible duplication here between initialise and
// loadStored.
bool AnalyserBeats::initialise(TrackPointer tio, int sampleRate, int totalSamples) {
if (totalSamples == 0) {
return false;
}
bool bPreferencesBeatDetectionEnabled = static_cast<bool>(
m_pConfig->getValueString(
ConfigKey(BPM_CONFIG_KEY, BPM_DETECTION_ENABLED)).toInt());
if (!bPreferencesBeatDetectionEnabled) {
qDebug() << "Beat calculation is deactivated";
return false;
}
bool bpmLock = tio->hasBpmLock();
if (bpmLock) {
qDebug() << "Track is BpmLocked: Beat calculation will not start";
return false;
}
bool allow_above = static_cast<bool>(m_pConfig->getValueString(
ConfigKey(BPM_CONFIG_KEY, BPM_ABOVE_RANGE_ENABLED)).toInt());
if (allow_above) {
m_iMinBpm = 0;
m_iMaxBpm = 9999;
} else {
m_iMinBpm = m_pConfig->getValueString(ConfigKey(BPM_CONFIG_KEY, BPM_RANGE_START)).toInt();
m_iMaxBpm = m_pConfig->getValueString(ConfigKey(BPM_CONFIG_KEY, BPM_RANGE_END)).toInt();
}
m_bPreferencesFixedTempo = static_cast<bool>(
m_pConfig->getValueString(
ConfigKey(BPM_CONFIG_KEY, BPM_FIXED_TEMPO_ASSUMPTION)).toInt());
m_bPreferencesOffsetCorrection = static_cast<bool>(
m_pConfig->getValueString(
ConfigKey(BPM_CONFIG_KEY, BPM_FIXED_TEMPO_OFFSET_CORRECTION)).toInt());
m_bPreferencesReanalyzeOldBpm = static_cast<bool>(
m_pConfig->getValueString(
ConfigKey(BPM_CONFIG_KEY, BPM_REANALYZE_WHEN_SETTINGS_CHANGE)).toInt());
m_bPreferencesFastAnalysis = static_cast<bool>(
m_pConfig->getValueString(
ConfigKey(BPM_CONFIG_KEY, BPM_FAST_ANALYSIS_ENABLED)).toInt());
QString library = m_pConfig->getValueString(
ConfigKey(VAMP_CONFIG_KEY, VAMP_ANALYSER_BEAT_LIBRARY));
QString pluginID = m_pConfig->getValueString(
ConfigKey(VAMP_CONFIG_KEY, VAMP_ANALYSER_BEAT_PLUGIN_ID));
m_pluginId = pluginID;
m_iSampleRate = sampleRate;
m_iTotalSamples = totalSamples;
// If the track already has a Beats object then we need to decide whether to
// analyze this track or not.
bool bShouldAnalyze = false;
BeatsPointer pBeats = tio->getBeats();
if (pBeats) {
QString version = pBeats->getVersion();
QString subVersion = pBeats->getSubVersion();
QHash<QString, QString> extraVersionInfo = getExtraVersionInfo(
m_pluginId, m_bPreferencesFastAnalysis);
QString newVersion = BeatFactory::getPreferredVersion(
m_bPreferencesFixedTempo);
QString newSubVersion = BeatFactory::getPreferredSubVersion(
m_bPreferencesFixedTempo, m_bPreferencesOffsetCorrection,
m_iMinBpm, m_iMaxBpm, extraVersionInfo);
if (version == newVersion && subVersion == newSubVersion) {
// If the version and settings have not changed then if the world is
// sane, re-analyzing will do nothing.
bShouldAnalyze = false;
qDebug() << "Beat sub-version has not changed since previous analysis so not analyzing.";
} else if (m_bPreferencesReanalyzeOldBpm) {
bShouldAnalyze = true;
} else if (pBeats->getBpm() == 0.0) {
bShouldAnalyze = true;
qDebug() << "BPM is 0 for track so re-analyzing despite preference settings.";
} else if (pBeats->findNextBeat(0) <= 0.0) {
bShouldAnalyze = true;
qDebug() << "First beat is 0 for grid so analyzing track to find first beat.";
} else {
bShouldAnalyze = false;
qDebug() << "Beat calculation skips analyzing because the track has"
<< "a BPM computed by a previous Mixxx version and user"
<< "preferences indicate we should not change it.";
}
} else {
// No valid keys stored so we want to analyze this track.
bShouldAnalyze = true;
}
if (bShouldAnalyze) {
m_pVamp = new VampAnalyser(m_pConfig);
bShouldAnalyze = m_pVamp->Init(library, pluginID, m_iSampleRate, totalSamples,
m_bPreferencesFastAnalysis);
if (!bShouldAnalyze) {
delete m_pVamp;
m_pVamp = NULL;
}
}
if (bShouldAnalyze) {
qDebug() << "Beat calculation started with plugin" << pluginID;
} else {
qDebug() << "Beat calculation will not start";
}
return bShouldAnalyze;
}
// TODO(XXX): Get rid of the horrible duplication here between initialise and
// loadStored.
bool AnalyserBeats::loadStored(TrackPointer tio) const {
int iMinBpm;
int iMaxBpm;
bool allow_above = static_cast<bool>(m_pConfig->getValueString(
ConfigKey(BPM_CONFIG_KEY, BPM_ABOVE_RANGE_ENABLED)).toInt());
if (allow_above) {
iMinBpm = 0;
iMaxBpm = 9999;
} else {
iMinBpm = m_pConfig->getValueString(ConfigKey(BPM_CONFIG_KEY, BPM_RANGE_START)).toInt();
iMaxBpm = m_pConfig->getValueString(ConfigKey(BPM_CONFIG_KEY, BPM_RANGE_END)).toInt();
}
bool bPreferencesFixedTempo = static_cast<bool>(
m_pConfig->getValueString(
ConfigKey(BPM_CONFIG_KEY, BPM_FIXED_TEMPO_ASSUMPTION)).toInt());
bool bPreferencesOffsetCorrection = static_cast<bool>(
m_pConfig->getValueString(
ConfigKey(BPM_CONFIG_KEY, BPM_FIXED_TEMPO_OFFSET_CORRECTION)).toInt());
bool bPreferencesReanalyzeOldBpm = static_cast<bool>(
m_pConfig->getValueString(
ConfigKey(BPM_CONFIG_KEY, BPM_REANALYZE_WHEN_SETTINGS_CHANGE)).toInt());
bool bPreferencesFastAnalysis = static_cast<bool>(
m_pConfig->getValueString(
ConfigKey(BPM_CONFIG_KEY, BPM_FAST_ANALYSIS_ENABLED)).toInt());
bool bpmLock = tio->hasBpmLock();
if (bpmLock) {
qDebug() << "Track is BpmLocked: Beat calculation will not start";
return true;
}
QString library = m_pConfig->getValueString(
ConfigKey(VAMP_CONFIG_KEY, VAMP_ANALYSER_BEAT_LIBRARY));
QString pluginID = m_pConfig->getValueString(
ConfigKey(VAMP_CONFIG_KEY, VAMP_ANALYSER_BEAT_PLUGIN_ID));
// At first start config for QM and Vamp does not exist --> set default
// TODO(XXX): This is no longer present in initialise. Remove?
if (library.isEmpty() || library.isNull())
library = "libmixxxminimal";
if (pluginID.isEmpty() || pluginID.isNull())
pluginID="qm-tempotracker:0";
// If the track already has a Beats object then we need to decide whether to
// analyze this track or not.
BeatsPointer pBeats = tio->getBeats();
if (pBeats) {
QString version = pBeats->getVersion();
QString subVersion = pBeats->getSubVersion();
QHash<QString, QString> extraVersionInfo = getExtraVersionInfo(
pluginID, bPreferencesFastAnalysis);
QString newVersion = BeatFactory::getPreferredVersion(
bPreferencesOffsetCorrection);
QString newSubVersion = BeatFactory::getPreferredSubVersion(
bPreferencesFixedTempo, bPreferencesOffsetCorrection,
iMinBpm, iMaxBpm, extraVersionInfo);
if (version == newVersion && subVersion == newSubVersion) {
// If the version and settings have not changed then if the world is
// sane, re-analyzing will do nothing.
qDebug() << "Beat sub-version has not changed since previous analysis so not analyzing.";
return true;
} else if (bPreferencesReanalyzeOldBpm) {
return false;
} else if (pBeats->getBpm() == 0.0) {
qDebug() << "BPM is 0 for track so re-analyzing despite preference settings.";
return false;
} else if (pBeats->findNextBeat(0) <= 0.0) {
qDebug() << "First beat is 0 for grid so analyzing track to find first beat.";
return false;
} else {
qDebug() << "Beat calculation skips analyzing because the track has"
<< "a BPM computed by a previous Mixxx version and user"
<< "preferences indicate we should not change it.";
return true;
}
} else {
// If we got here, we want to analyze this track.
return false;
}
}