kopia lustrzana https://github.com/AlexandreRouma/SDRPlusPlus
99 wiersze
2.6 KiB
C++
99 wiersze
2.6 KiB
C++
#include <signal_path.h>
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SignalPath::SignalPath() {
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}
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void SignalPath::init(uint64_t sampleRate, int fftRate, int fftSize, dsp::stream<dsp::complex_t>* input, dsp::complex_t* fftBuffer, void fftHandler(dsp::complex_t*)) {
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this->sampleRate = sampleRate;
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this->fftRate = fftRate;
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this->fftSize = fftSize;
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inputBlockSize = sampleRate / 200.0f;
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dcBiasRemover.init(input, 32000);
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dcBiasRemover.bypass = true;
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split.init(&dcBiasRemover.output, 32000);
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fftBlockDec.init(&split.output_a, (sampleRate / fftRate) - fftSize, fftSize);
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fftHandlerSink.init(&fftBlockDec.output, fftBuffer, fftSize, fftHandler);
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dynSplit.init(&split.output_b, 32000);
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}
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void SignalPath::setSampleRate(float sampleRate) {
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this->sampleRate = sampleRate;
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inputBlockSize = sampleRate / 200.0f;
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dcBiasRemover.stop();
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split.stop();
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fftBlockDec.stop();
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fftHandlerSink.stop();
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dynSplit.stop();
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for (auto const& [name, vfo] : vfos) {
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vfo.vfo->stop();
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}
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dcBiasRemover.setBlockSize(inputBlockSize);
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split.setBlockSize(inputBlockSize);
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int skip = (sampleRate / fftRate) - fftSize;
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fftBlockDec.setSkip(skip);
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dynSplit.setBlockSize(inputBlockSize);
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mod::broadcastEvent(mod::EVENT_STREAM_PARAM_CHANGED);
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for (auto const& [name, vfo] : vfos) {
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vfo.vfo->setInputSampleRate(sampleRate, inputBlockSize);
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vfo.vfo->start();
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}
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fftHandlerSink.start();
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fftBlockDec.start();
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split.start();
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dcBiasRemover.start();
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dynSplit.start();
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}
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void SignalPath::start() {
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dcBiasRemover.start();
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split.start();
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fftBlockDec.start();
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fftHandlerSink.start();
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dynSplit.start();
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}
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void SignalPath::setDCBiasCorrection(bool enabled) {
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dcBiasRemover.bypass = !enabled;
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}
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dsp::VFO* SignalPath::addVFO(std::string name, float outSampleRate, float bandwidth, float offset) {
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if (vfos.find(name) != vfos.end()) {
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return NULL;
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}
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dynSplit.stop();
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VFO_t vfo;
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vfo.inputStream = new dsp::stream<dsp::complex_t>(inputBlockSize * 2);
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dynSplit.bind(vfo.inputStream);
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vfo.vfo = new dsp::VFO();
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vfo.vfo->init(vfo.inputStream, sampleRate, outSampleRate, bandwidth, offset, inputBlockSize);
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vfo.vfo->start();
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vfos[name] = vfo;
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dynSplit.start();
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return vfo.vfo;
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}
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void SignalPath::removeVFO(std::string name) {
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if (vfos.find(name) == vfos.end()) {
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return;
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}
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dynSplit.stop();
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VFO_t vfo = vfos[name];
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vfo.vfo->stop();
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dynSplit.unbind(vfo.inputStream);
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delete vfo.vfo;
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delete vfo.inputStream;
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dynSplit.start();
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vfos.erase(name);
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} |