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Fix TCP SSB FFT FTW.

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This commit is contained in:
John Greb 2014-12-18 19:17:42 +00:00
parent 6944ed8ea9
commit 34b5a5992b
1 changed files with 11 additions and 8 deletions
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19
plugins/channel/tcpsrc/tcpsrc.cpp
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@ -26,6 +26,7 @@ TCPSrc::TCPSrc(MessageQueue* uiMessageQueue, TCPSrcGUI* tcpSrcGUI, SampleSink* s
m_nextSSBId = 0;
m_nextS16leId = 0;
m_sampleBufferSSB.resize(ssbFftLen);
TCPFilter = new fftfilt(0.01, 16.0 / 48.0, ssbFftLen);
// if (!TCPFilter) segfault;
}
@ -49,10 +50,9 @@ void TCPSrc::setSpectrum(MessageQueue* messageQueue, bool enabled)
void TCPSrc::feed(SampleVector::const_iterator begin, SampleVector::const_iterator end, bool positiveOnly)
{
Complex ci;
Complex* sideband;
cmplx* sideband;
m_sampleBuffer.clear();
m_sampleBufferSSB.clear();
for(SampleVector::const_iterator it = begin; it < end; ++it) {
Complex c(it->real() / 32768.0, it->imag() / 32768.0);
@ -74,13 +74,16 @@ void TCPSrc::feed(SampleVector::const_iterator begin, SampleVector::const_iterat
for(SampleVector::const_iterator it = m_sampleBuffer.begin(); it != m_sampleBuffer.end(); ++it) {
Complex cj(it->real() / 20000.0, it->imag() / 20000.0);
int n_out = TCPFilter->run(cj, &sideband, true);
for (int i = 0; i < n_out; i+=2) {
Real one = (sideband[i].real() + sideband[i].imag()) * 0.7 * 20000.0;
Real two = (sideband[i+1].real() + sideband[i+1].imag()) * 0.7 * 20000.0;
m_sampleBufferSSB.push_back(Sample(one, two));
if (n_out) {
for (int i = 0; i < n_out; i+=2) {
Real one = (sideband[i].real() + sideband[i].imag()) * 0.7 * 32000.0;
Real two = (sideband[i+1].real() + sideband[i+1].imag()) * 0.7 * 32000.0;
m_sampleBufferSSB.push_back(Sample(one, two));
}
for(int i = 0; i < m_ssbSockets.count(); i++)
m_ssbSockets[i].socket->write((const char*)&m_sampleBufferSSB[0], n_out * 2);
m_sampleBufferSSB.clear();
}
for(int i = 0; (n_out > 0) && (i < m_ssbSockets.count()); i++)
m_ssbSockets[i].socket->write((const char*)&m_sampleBufferSSB[0], n_out * 2);
}
}
}