void PeakLevelMeters::setValues(float leftVal, float rightVal) {
float f= 1.0f+levelToDB(leftVal)/dbRange;
if (f<0.f) f= 0.f;
left.setValue(f);
f= 1.0f+levelToDB(rightVal)/dbRange;
if (f<0.f) f= 0.f;
right.setValue(f);
}
void MonitorAudioLevel::refreshScope(const QSize& /*size*/, bool /*full*/)
{
SharedFrame sFrame;
while (m_queue.count() > 0) {
sFrame = m_queue.pop();
if (sFrame.is_valid() && sFrame.get_audio_samples() > 0) {
mlt_audio_format format = mlt_audio_s16;
int channels = sFrame.get_audio_channels();
int frequency = sFrame.get_audio_frequency();
int samples = sFrame.get_audio_samples();
Mlt::Frame mFrame = sFrame.clone(true, false, false);
m_filter->process(mFrame);
mFrame.get_audio( format, frequency, channels, samples );
if (samples == 0) {
// There was an error processing audio from frame
continue;
}
QVector<int> levels;
for (int i = 0; i < audioChannels; i++) {
QString s = QString("meta.media.audio_level.%1").arg(i);
double audioLevel = mFrame.get_double(s.toLatin1().constData());
if (audioLevel == 0.0) {
levels << -100;
} else {
levels << (int) levelToDB(audioLevel);
}
}
QMetaObject::invokeMethod(this, "setAudioValues", Qt::QueuedConnection, Q_ARG(const QVector<int>&, levels));
}
}
