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RTLSDR: implemented Fc position adjustment

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This commit is contained in:
f4exb
2015-10-01 06:30:50 +02:00
parent 2ceacfa107
commit dc81e2dd9c
8 changed files with 203 additions and 21 deletions
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plugins/samplesource/rtlsdr/rtlsdrthread.cpp
+69 -17
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@@ -63,6 +63,11 @@ void RTLSDRThread::setLog2Decimation(unsigned int log2_decim)
m_log2Decim = log2_decim;
}
void RTLSDRThread::setFcPos(int fcPos)
{
m_fcPos = fcPos;
}
void RTLSDRThread::run()
{
int res;
@@ -85,25 +90,72 @@ void RTLSDRThread::callback(const quint8* buf, qint32 len)
{
SampleVector::iterator it = m_convertBuffer.begin();
switch (m_log2Decim)
if (m_log2Decim == 0)
{
case 0:
m_decimators.decimate1(&it, buf, len);
break;
case 1:
m_decimators.decimate2_inf(&it, buf, len);
break;
case 2:
m_decimators.decimate4_inf(&it, buf, len);
break;
case 3:
m_decimators.decimate8_inf(&it, buf, len);
break;
case 4:
m_decimators.decimate16_inf(&it, buf, len);
break;
default:
break;
}
else
{
if (m_fcPos == 0) // Infradyne
{
switch (m_log2Decim)
{
case 1:
m_decimators.decimate2_inf(&it, buf, len);
break;
case 2:
m_decimators.decimate4_inf(&it, buf, len);
break;
case 3:
m_decimators.decimate8_inf(&it, buf, len);
break;
case 4:
m_decimators.decimate16_inf(&it, buf, len);
break;
default:
break;
}
}
else if (m_fcPos == 1) // Supradyne
{
switch (m_log2Decim)
{
case 1:
m_decimators.decimate2_sup(&it, buf, len);
break;
case 2:
m_decimators.decimate4_sup(&it, buf, len);
break;
case 3:
m_decimators.decimate8_sup(&it, buf, len);
break;
case 4:
m_decimators.decimate16_sup(&it, buf, len);
break;
default:
break;
}
}
else // Centered
{
switch (m_log2Decim)
{
case 1:
m_decimators.decimate2_cen(&it, buf, len);
break;
case 2:
m_decimators.decimate4_cen(&it, buf, len);
break;
case 3:
m_decimators.decimate8_cen(&it, buf, len);
break;
case 4:
m_decimators.decimate16_cen(&it, buf, len);
break;
default:
break;
}
}
}
m_sampleFifo->write(m_convertBuffer.begin(), it);