bool AnalyzerWaveform::initialize(TrackPointer tio, int sampleRate, int totalSamples) {
m_skipProcessing = false;
m_timer.start();
if (totalSamples == 0) {
qWarning() << "AnalyzerWaveform::initialize - no waveform/waveform summary";
return false;
}
// If we don't need to calculate the waveform/wavesummary, skip.
if (isDisabledOrLoadStoredSuccess(tio)) {
m_skipProcessing = true;
} else {
// Now actually initialize the AnalyzerWaveform:
destroyFilters();
createFilters(sampleRate);
//TODO (vrince) Do we want to expose this as settings or whatever ?
const int mainWaveformSampleRate = 441;
// two visual sample per pixel in full width overview in full hd
const int summaryWaveformSamples = 2 * 1920;
m_waveform = WaveformPointer(new Waveform(
sampleRate, totalSamples, mainWaveformSampleRate, -1));
m_waveformSummary = WaveformPointer(new Waveform(
sampleRate, totalSamples, mainWaveformSampleRate,
summaryWaveformSamples));
// Now, that the Waveform memory is initialized, we can set set them to
// the TIO. Be aware that other threads of Mixxx can touch them from
// now.
tio->setWaveform(m_waveform);
tio->setWaveformSummary(m_waveformSummary);
m_waveformData = m_waveform->data();
m_waveformSummaryData = m_waveformSummary->data();
m_stride = WaveformStride(m_waveform->getAudioVisualRatio(),
m_waveformSummary->getAudioVisualRatio());
m_currentStride = 0;
m_currentSummaryStride = 0;
//debug
//m_waveform->dump();
//m_waveformSummary->dump();
#ifdef TEST_HEAT_MAP
test_heatMap = new QImage(256,256,QImage::Format_RGB32);
test_heatMap->fill(0xFFFFFFFF);
#endif
}
return !m_skipProcessing;
}
FeatureSet_ptr SeedSearcherMain::FeatureSetManager::removeRedundancies (
const FeatureSet& features, const CmdLineParameters& params)
{
//
// creates a new empty container with only the redundancy removing filters
SeedSearcher::FeatureFilter_ptr bestFeatures =
createFilters (params, false);
int maxElements = params.parser ().__seed_n;
FeatureSet::CIterator feature_it = features.getIterator();
for (; ((*bestFeatures)->size () < maxElements) && (feature_it.hasNext()) ; feature_it.next())
bestFeatures->add(*feature_it );
return bestFeatures->getArray();
}