AbstractScopeWidget::AbstractScopeWidget(bool trackMouse, QWidget *parent) :
QWidget(parent)
, m_mousePos(0, 0)
, m_mouseWithinWidget(false)
, offset(5)
, m_accelFactorHUD(1)
, m_accelFactorScope(1)
, m_accelFactorBackground(1)
, m_semaphoreHUD(1)
, m_semaphoreScope(1)
, m_semaphoreBackground(1)
, initialDimensionUpdateDone(false)
, m_requestForcedUpdate(false)
, m_rescaleMinDist(4)
, m_rescaleVerticalThreshold(2.0f)
, m_rescaleActive(false)
, m_rescalePropertiesLocked(false)
, m_rescaleFirstRescaleDone(true)
, m_rescaleDirection(North)
{
m_scopePalette = QPalette();
m_scopePalette.setBrush(QPalette::Window, QBrush(dark2));
m_scopePalette.setBrush(QPalette::Base, QBrush(dark));
m_scopePalette.setBrush(QPalette::Button, QBrush(dark));
m_scopePalette.setBrush(QPalette::Text, QBrush(light));
m_scopePalette.setBrush(QPalette::WindowText, QBrush(light));
m_scopePalette.setBrush(QPalette::ButtonText, QBrush(light));
this->setPalette(m_scopePalette);
this->setAutoFillBackground(true);
m_aAutoRefresh = new QAction(i18n("Auto Refresh"), this);
m_aAutoRefresh->setCheckable(true);
m_aRealtime = new QAction(i18n("Realtime (with precision loss)"), this);
m_aRealtime->setCheckable(true);
m_menu = new QMenu(this);
// Disabled dark palette on menus since it breaks up with some themes: kdenlive issue #2950
//m_menu->setPalette(m_scopePalette);
m_menu->addAction(m_aAutoRefresh);
m_menu->addAction(m_aRealtime);
this->setContextMenuPolicy(Qt::CustomContextMenu);
bool b = true;
b &= connect(this, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(customContextMenuRequested(QPoint)));
b &= connect(this, SIGNAL(signalHUDRenderingFinished(uint, uint)), this, SLOT(slotHUDRenderingFinished(uint, uint)));
b &= connect(this, SIGNAL(signalScopeRenderingFinished(uint, uint)), this, SLOT(slotScopeRenderingFinished(uint, uint)));
b &= connect(this, SIGNAL(signalBackgroundRenderingFinished(uint, uint)), this, SLOT(slotBackgroundRenderingFinished(uint, uint)));
b &= connect(m_aRealtime, SIGNAL(toggled(bool)), this, SLOT(slotResetRealtimeFactor(bool)));
b &= connect(m_aAutoRefresh, SIGNAL(toggled(bool)), this, SLOT(slotAutoRefreshToggled(bool)));
Q_ASSERT(b);
// Enable mouse tracking if desired.
// Causes the mouseMoved signal to be emitted when the mouse moves inside the
// widget, even when no mouse button is pressed.
this->setMouseTracking(trackMouse);
}
QImage Waveform::renderGfxScope(uint accelFactor, const QImage &qimage)
{
QTime start = QTime::currentTime();
start.start();
const int paintmode = ui->paintMode->itemData(ui->paintMode->currentIndex()).toInt();
WaveformGenerator::Rec rec = m_aRec601->isChecked() ? WaveformGenerator::Rec_601 : WaveformGenerator::Rec_709;
QImage wave = m_waveformGenerator->calculateWaveform(scopeRect().size() - m_textWidth - QSize(0,m_paddingBottom), qimage,
(WaveformGenerator::PaintMode) paintmode, true, rec, accelFactor);
emit signalScopeRenderingFinished(start.elapsed(), 1);
return wave;
}
QImage Histogram::renderGfxScope(uint accelFactor, const QImage qimage)
{
QTime start = QTime::currentTime();
start.start();
const int componentFlags = (ui->cbY->isChecked() ? 1 : 0) * HistogramGenerator::ComponentY
| (ui->cbS->isChecked() ? 1 : 0) * HistogramGenerator::ComponentSum
| (ui->cbR->isChecked() ? 1 : 0) * HistogramGenerator::ComponentR
| (ui->cbG->isChecked() ? 1 : 0) * HistogramGenerator::ComponentG
| (ui->cbB->isChecked() ? 1 : 0) * HistogramGenerator::ComponentB;
HistogramGenerator::Rec rec = m_aRec601->isChecked() ? HistogramGenerator::Rec_601 : HistogramGenerator::Rec_709;
QImage histogram = m_histogramGenerator->calculateHistogram(m_scopeRect.size(), qimage, componentFlags,
rec, m_aUnscaled->isChecked(), accelFactor);
emit signalScopeRenderingFinished(start.elapsed(), accelFactor);
return histogram;
}
QImage AudioSpectrum::renderAudioScope(uint, const QVector<int16_t> audioFrame, const int freq, const int num_channels,
const int num_samples, const int)
{
if (
audioFrame.size() > 63
&& m_innerScopeRect.width() > 0 && m_innerScopeRect.height() > 0 // <= 0 if widget is too small (resized by user)
) {
if (!m_customFreq) {
m_freqMax = freq / 2;
}
QTime start = QTime::currentTime();
#ifdef DETECT_OVERMODULATION
bool overmodulated = false;
int overmodulateCount = 0;
for (int i = 0; i < audioFrame.size(); i++) {
if (
audioFrame[i] == std::numeric_limits<int16_t>::max()
|| audioFrame[i] == std::numeric_limits<int16_t>::min()) {
overmodulateCount++;
if (overmodulateCount > 3) {
overmodulated = true;
break;
}
}
}
if (overmodulated) {
colorizeFactor = 1;
} else {
if (colorizeFactor > 0) {
colorizeFactor -= .08;
if (colorizeFactor < 0) {
colorizeFactor = 0;
}
}
}
#endif
// Determine the window size to use. It should be
// * not bigger than the number of samples actually available
// * divisible by 2
int fftWindow = ui->windowSize->itemData(ui->windowSize->currentIndex()).toInt();
if (fftWindow > num_samples) {
fftWindow = num_samples;
}
if ((fftWindow & 1) == 1) {
fftWindow--;
}
// Show the window size used, for information
ui->labelFFTSizeNumber->setText(QVariant(fftWindow).toString());
// Get the spectral power distribution of the input samples,
// using the given window size and function
float freqSpectrum[fftWindow/2];
FFTTools::WindowType windowType = (FFTTools::WindowType) ui->windowFunction->itemData(ui->windowFunction->currentIndex()).toInt();
m_fftTools.fftNormalized(audioFrame, 0, num_channels, freqSpectrum, windowType, fftWindow, 0);
// Store the current FFT window (for the HUD) and run the interpolation
// for easy pixel-based dB value access
QVector<float> dbMap;
m_lastFFTLock.acquire();
m_lastFFT = QVector<float>(fftWindow/2);
memcpy(m_lastFFT.data(), &(freqSpectrum[0]), fftWindow/2 * sizeof(float));
uint right = ((float) m_freqMax)/(m_freq/2) * (m_lastFFT.size() - 1);
dbMap = FFTTools::interpolatePeakPreserving(m_lastFFT, m_innerScopeRect.width(), 0, right, -180);
m_lastFFTLock.release();
#ifdef DEBUG_AUDIOSPEC
QTime drawTime = QTime::currentTime();
#endif
// Draw the spectrum
QImage spectrum(m_scopeRect.size(), QImage::Format_ARGB32);
spectrum.fill(qRgba(0,0,0,0));
const uint w = m_innerScopeRect.width();
const uint h = m_innerScopeRect.height();
const uint leftDist = m_innerScopeRect.left() - m_scopeRect.left();
const uint topDist = m_innerScopeRect.top() - m_scopeRect.top();
QColor spectrumColor(AbstractScopeWidget::colDarkWhite);
int yMax;
#ifdef DETECT_OVERMODULATION
if (colorizeFactor > 0) {
QColor col = AbstractScopeWidget::colHighlightDark;
QColor spec = spectrumColor;
float f = std::sin(M_PI_2 * colorizeFactor);
spectrumColor = QColor(
(int) (f * col.red() + (1-f) * spec.red()),
(int) (f * col.green() + (1-f) * spec.green()),
(int) (f * col.blue() + (1-f) * spec.blue()),
spec.alpha()
);
// Limit the maximum colorization for non-overmodulated frames to better
// recognize consecutively overmodulated frames
if (colorizeFactor > MAX_OVM_COLOR) {
colorizeFactor = MAX_OVM_COLOR;
}
}
#endif
#ifdef AUDIOSPEC_LINES
QPainter davinci(&spectrum);
davinci.setPen(QPen(QBrush(spectrumColor.rgba()), 1, Qt::SolidLine));
#endif
for (uint i = 0; i < w; i++) {
yMax = (dbMap[i] - m_dBmin) / (m_dBmax-m_dBmin) * (h-1);
if (yMax < 0) {
yMax = 0;
} else if (yMax >= (int)h) {
yMax = h-1;
}
#ifdef AUDIOSPEC_LINES
davinci.drawLine(leftDist + i, topDist + h-1, leftDist + i, topDist + h-1 - yMax);
#else
for (int y = 0; y < yMax && y < (int)h; y++) {
spectrum.setPixel(leftDist + i, topDist + h-y-1, spectrumColor.rgba());
}
#endif
}
// Calculate the peak values. Use the new value if it is bigger, otherwise adapt to lower
// values using the Moving Average formula
if (m_aShowMax->isChecked()) {
davinci.setPen(QPen(QBrush(AbstractScopeWidget::colHighlightLight), 2));
if (m_peaks.size() != fftWindow/2) {
m_peaks = QVector<float>(m_lastFFT);
} else {
for (int i = 0; i < fftWindow/2; i++) {
if (m_lastFFT[i] > m_peaks[i]) {
m_peaks[i] = m_lastFFT[i];
} else {
m_peaks[i] = ALPHA_MOVING_AVG * m_lastFFT[i] + (1-ALPHA_MOVING_AVG) * m_peaks[i];
}
}
}
int prev = 0;
m_peakMap = FFTTools::interpolatePeakPreserving(m_peaks, m_innerScopeRect.width(), 0, right, -180);
for (uint i = 0; i < w; i++) {
yMax = (m_peakMap[i] - m_dBmin) / (m_dBmax-m_dBmin) * (h-1);
if (yMax < 0) {
yMax = 0;
} else if (yMax >= (int)h) {
yMax = h-1;
}
davinci.drawLine(leftDist + i-1, topDist + h-prev-1, leftDist + i, topDist + h-yMax-1);
spectrum.setPixel(leftDist + i, topDist + h-yMax-1, AbstractScopeWidget::colHighlightLight.rgba());
prev = yMax;
}
}
#ifdef DEBUG_AUDIOSPEC
m_showTotal++;
m_timeTotal += drawTime.elapsed();
qDebug() << widgetName() << " took " << drawTime.elapsed() << " ms for drawing. Average: " << ((float)m_timeTotal/m_showTotal) ;
#endif
emit signalScopeRenderingFinished(start.elapsed(), 1);
return spectrum;
} else {
emit signalScopeRenderingFinished(0, 1);
return QImage();
}
}
QImage AudioSignal::renderAudioScope(uint, const QVector<int16_t> audioFrame,
const int, const int num_channels, const int samples, const int)
{
QTime start = QTime::currentTime();
int num_samples = samples > 200 ? 200 : samples;
QByteArray channels;
for (int i = 0; i < num_channels; i++) {
long val = 0;
for (int s = 0; s < num_samples; s ++) {
val += abs(audioFrame[i+s*num_channels] / 128);
}
channels.append(val / num_samples);
}
if (peeks.count()!=channels.count()){
peeks=QByteArray(channels.count(),0);
peekage=QByteArray(channels.count(),0);
}
for (int chan=0;chan<peeks.count();chan++)
{
peekage[chan] = peekage[chan]+1;
if ( peeks.at(chan)<channels.at(chan) || peekage.at(chan)>50 )
{
peekage[chan]=0;
peeks[chan]=channels[chan];
}
}
QImage image(m_scopeRect.size(), QImage::Format_ARGB32);
image.fill(Qt::transparent);
QPainter p(&image);
p.setPen(Qt::white);
p.setRenderHint(QPainter::TextAntialiasing, false);
p.setRenderHint(QPainter::Antialiasing, false);
int numchan = channels.size();
bool horiz=width() > height();
int dbsize=20;
bool showdb=width()>(dbsize+40);
//valpixel=1.0 for 127, 1.0+(1/40) for 1 short oversample, 1.0+(2/40) for longer oversample
for (int i = 0; i < numchan; i++) {
//int maxx= (unsigned char)channels[i] * (horiz ? width() : height() ) / 127;
double valpixel=valueToPixel((double)(unsigned char)channels[i]/127.0);
int maxx= height() * valpixel;
int xdelta= height() /42 ;
int _y2= (showdb?width()-dbsize:width () ) / numchan - 1 ;
int _y1= (showdb?width()-dbsize:width() ) *i/numchan;
int _x2= maxx > xdelta ? xdelta - 3 : maxx - 3 ;
if (horiz){
dbsize=9;
showdb=height()>(dbsize);
maxx=width()*valpixel;
xdelta = width() / 42;
_y2=( showdb?height()-dbsize:height() ) / numchan - 1 ;
_y1= (showdb?height()-dbsize:height() ) * i/numchan;
_x2= maxx > xdelta ? xdelta - 1 : maxx - 1;
}
for (int x = 0; x <= 42; x++) {
int _x1= x *xdelta;
QColor sig=Qt::green;
//value of actual painted digit
double ival=(double)_x1/(double)xdelta/42.0;
if (ival > 40.0/42.0){
sig=Qt::red;
}else if ( ival > 37.0/42.0){
sig=Qt::darkYellow;
}else if ( ival >30.0/42.0){
sig=Qt::yellow;
}
if (maxx > 0) {
if (horiz){
p.fillRect(_x1, _y1, _x2, _y2, QBrush(sig, Qt::SolidPattern) );
}else{
p.fillRect(_y1, height()-_x1, _y2,-_x2, QBrush(sig, Qt::SolidPattern) );
}
maxx -= xdelta;
}
}
int xp=valueToPixel((double)peeks.at(i)/127.0)*(horiz?width():height())-2;
p.fillRect(horiz?xp:_y1,horiz?_y1:height()-xdelta-xp,horiz?3:_y2,horiz?_y2:3,QBrush(Qt::gray,Qt::SolidPattern));
}
if (showdb){
//draw db value at related pixel
for (int l=0;l<dbscale.size();l++){
if (!horiz){
double xf=pow(10.0,(double)dbscale.at(l) / 20.0 )*(double)height();
p.drawText(width()-20,height()-xf*40.0/42.0+20, QString().sprintf("%d",dbscale.at(l)));
}else{
double xf=pow(10.0,(double)dbscale.at(l) / 20.0 )*(double)width();
p.drawText(xf*40/42-10,height()-2, QString().sprintf("%d",dbscale.at(l)));
}
}
}
p.end();
emit signalScopeRenderingFinished((uint) start.elapsed(), 1);
return image;
}