void TCSGram::getTCSVector(int iPosition, TCSVector& rTCSVector) const
{
if (iPosition < 0)
rTCSVector = TCSVector();
else if (iPosition >= m_VectorList.size())
rTCSVector = TCSVector();
else
rTCSVector = m_VectorList[iPosition].second;
}
TCSGram::TCSGram() :
m_uNumBins(6),
m_dFrameDurationMS(0.0)
{
for (size_t k = 0; k < m_VectorList.size(); ++k) {
m_VectorList[k].first = 0;
m_VectorList[k].second = TCSVector();
}
}
TonalChangeDetect::FeatureSet
TonalChangeDetect::process(const float *const *inputBuffers,
Vamp::RealTime timestamp)
{
if (!m_chromagram) {
cerr << "ERROR: TonalChangeDetect::process: "
<< "Chromagram has not been initialised"
<< endl;
return FeatureSet();
}
if (!m_haveOrigin) m_origin = timestamp;
// convert float* to double*
double *tempBuffer = new double[m_block];
for (size_t i = 0; i < m_block; ++i) {
tempBuffer[i] = inputBuffers[0][i];
}
double *output = m_chromagram->process(tempBuffer);
delete[] tempBuffer;
for (size_t i = 0; i < 12; i++)
{
m_vaCurrentVector[i] = output[i];
}
FeatureSet returnFeatures;
if (m_stepDelay == 0) {
m_vaCurrentVector.normalizeL1();
TCSVector tcsVector = m_TonalEstimator.transform2TCS(m_vaCurrentVector);
m_TCSGram.addTCSVector(tcsVector);
Feature feature;
feature.hasTimestamp = false;
for (int i = 0; i < 6; i++)
{
feature.values.push_back(static_cast<float>(tcsVector[i]));
}
feature.label = "";
returnFeatures[0].push_back(feature);
return returnFeatures;
}
if (m_pending.size() == m_stepDelay) {
ChromaVector v = m_pending.front();
v.normalizeL1();
TCSVector tcsVector = m_TonalEstimator.transform2TCS(v);
m_TCSGram.addTCSVector(tcsVector);
Feature feature;
feature.hasTimestamp = false;
for (int i = 0; i < 6; i++)
{
feature.values.push_back(static_cast<float>(tcsVector[i]));
}
feature.label = "";
returnFeatures[0].push_back(feature);
m_pending.pop();
} else {
returnFeatures[0].push_back(Feature());
m_TCSGram.addTCSVector(TCSVector());
}
m_pending.push(m_vaCurrentVector);
return returnFeatures;
}
