bool VideoAnalyzer::nextFrame() {
if (_videoCapture==NULL) return false;
if (_currentFrameIndex>=_frameCount) return false;
_videoCapture->set(cv::CAP_PROP_POS_FRAMES, _nextFrameIndex);
(*_videoCapture) >> _currentFrame;
if (_analyzedFrames%2==0) {
_evenFrame.release();
_evenFrame = _currentFrame.clone();
}
else {
_oddFrame.release();
_oddFrame = _currentFrame.clone();
}
if (_currentFrameIndex==0) {
analysisStarted();
}
else if (_analyzerCallback && _analyzerCallback->analyze(_evenFrame, _oddFrame)) {
callFrameCallback();
}
++_analyzedFrames;
_nextFrameIndex += _frameStep;
_currentFrameIndex = _nextFrameIndex;
if (_nextFrameIndex>=_frameCount) {
analysisFinished();
}
return true;
}
DetailWindow::DetailWindow(QWidget *parent, QString path) : QMainWindow(parent), ui(new Ui::DetailWindow){
ui->setupUi(this);
//: The title of the Detail window
this->setWindowTitle(GuiStrings::getInstance()->appName() + GuiStrings::getInstance()->delim() + tr("Detailed Analysis"));
//: A tooltip on the Detail window
ui->chromaColourCombo->setToolTip(wrapToolTip(tr("Choose the colour scheme for the chromagram. Some provide higher contrast than others.")));
//: A tooltip on the Detail window
ui->colourScaleLabel->setToolTip(wrapToolTip(tr("This is the colour scale of the current chromagram. You can change the colour scheme using the dropdown below.")));
connect(&analysisWatcher, SIGNAL(finished()), this, SLOT(analysisFinished()));
allowDrops = true;
ui->progressBar->setVisible(false);
ui->runButton->setEnabled(false);
layoutScaling();
drawColourScale();
drawPianoKeys();
blankVisualisations();
blankKeyLabel();
if(path != ""){
filePath = path;
runAnalysis();
}
}
