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tuner: Port to liquid

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Mike
2016-06-08 10:35:44 +01:00
parent 19bc60a205
commit 6c77918558
6 changed files with 110 additions and 25 deletions
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25
spectrogramplot.cpp
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@@ -43,20 +43,9 @@ SpectrogramPlot::SpectrogramPlot(std::shared_ptr<SampleSource<std::complex<float
colormap[i] = QColor::fromHsvF(p * 0.83f, 1.0, 1.0 - p).rgba();
}
auto tunerFlowGraph = gr::make_top_block("tuner");
auto memSource = gr::blocks::memory_source::make(8);
auto memSink = gr::blocks::memory_sink::make(8);
tunerRotator = gr::blocks::rotator_ex_cc::make(getTunerPhaseInc());
tunerFilter = gr::filter::fir_filter_ccf::make(1, getTunerTaps());
tunerFlowGraph->connect(memSource, 0, tunerRotator, 0);
tunerFlowGraph->connect(tunerRotator, 0, tunerFilter, 0);
tunerFlowGraph->connect(tunerFilter, 0, memSink, 0);
tunerOutput = std::make_shared<GRSampleBuffer<std::complex<float>, std::complex<float>>>(
inputSource.get(), tunerFlowGraph, memSource, memSink
);
tunerTransform = std::make_shared<TunerTransform>(src.get());
connect(&tuner, &Tuner::tunerMoved, this, &SpectrogramPlot::tunerMoved);
tunerMoved();
}
void SpectrogramPlot::paintFront(QPainter &painter, QRect &rect, range_t<off_t> sampleRange)
@@ -165,7 +154,7 @@ int SpectrogramPlot::getStride()
float SpectrogramPlot::getTunerPhaseInc()
{
auto freq = 0.5f - tuner.centre() / (float)fftSize;
return -freq * Tau;
return freq * Tau;
}
std::vector<float> SpectrogramPlot::getTunerTaps()
@@ -196,7 +185,7 @@ bool SpectrogramPlot::mouseEvent(QEvent::Type type, QMouseEvent event)
std::shared_ptr<AbstractSampleSource> SpectrogramPlot::output()
{
return tunerOutput;
return tunerTransform;
}
void SpectrogramPlot::setFFTSize(int size)
@@ -232,13 +221,13 @@ void SpectrogramPlot::setZoomLevel(int zoom)
bool SpectrogramPlot::tunerEnabled()
{
return (tunerOutput->subscriberCount() > 0);
return (tunerTransform->subscriberCount() > 0);
}
void SpectrogramPlot::tunerMoved()
{
tunerRotator->set_phase_inc(getTunerPhaseInc());
tunerFilter->set_taps(getTunerTaps());
tunerTransform->setFrequency(getTunerPhaseInc());
tunerTransform->setTaps(getTunerTaps());
// TODO: for invalidating traceplot cache, this shouldn't really go here
QPixmapCache::clear();