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PlutoSDR and RTL-SDR input: rework of center frequency setting

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This commit is contained in:
f4exb
2018-05-10 11:48:06 +02:00
parent fd4d2bb64f
commit 17976cf058
2 changed files with 34 additions and 82 deletions
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plugins/samplesource/rtlsdr/rtlsdrinput.cpp
+23 -44
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@@ -440,72 +440,51 @@ bool RTLSDRInput::applySettings(const RTLSDRSettings& settings, bool force)
if ((m_settings.m_centerFrequency != settings.m_centerFrequency)
|| (m_settings.m_fcPos != settings.m_fcPos)
|| (m_settings.m_log2Decim != settings.m_log2Decim)
|| (m_settings.m_devSampleRate != settings.m_devSampleRate)
|| (m_settings.m_transverterMode != settings.m_transverterMode)
|| (m_settings.m_transverterDeltaFrequency != settings.m_transverterDeltaFrequency) || force)
{
qint64 deviceCenterFrequency = DeviceSampleSource::calculateDeviceCenterFrequency(
settings.m_centerFrequency,
settings.m_transverterDeltaFrequency,
settings.m_log2Decim,
(DeviceSampleSource::fcPos_t) settings.m_fcPos,
settings.m_devSampleRate,
settings.m_transverterMode);
m_settings.m_centerFrequency = settings.m_centerFrequency;
m_settings.m_log2Decim = settings.m_log2Decim;
m_settings.m_devSampleRate = settings.m_devSampleRate;
m_settings.m_transverterMode = settings.m_transverterMode;
m_settings.m_transverterDeltaFrequency = settings.m_transverterDeltaFrequency;
m_settings.m_log2Decim = settings.m_log2Decim;
qint64 deviceCenterFrequency = m_settings.m_centerFrequency;
deviceCenterFrequency -= m_settings.m_transverterMode ? m_settings.m_transverterDeltaFrequency : 0;
deviceCenterFrequency = deviceCenterFrequency < 0 ? 0 : deviceCenterFrequency;
qint64 f_img = deviceCenterFrequency;
quint32 devSampleRate = m_settings.m_devSampleRate;
forwardChange = true;
if ((m_settings.m_log2Decim == 0) || (settings.m_fcPos == RTLSDRSettings::FC_POS_CENTER))
if ((m_settings.m_fcPos != settings.m_fcPos) || force)
{
f_img = deviceCenterFrequency;
}
else
{
if (settings.m_fcPos == RTLSDRSettings::FC_POS_INFRA)
{
deviceCenterFrequency += (devSampleRate / 4);
f_img = deviceCenterFrequency + devSampleRate/2;
}
else if (settings.m_fcPos == RTLSDRSettings::FC_POS_SUPRA)
{
deviceCenterFrequency -= (devSampleRate / 4);
f_img = deviceCenterFrequency - devSampleRate/2;
m_settings.m_fcPos = settings.m_fcPos;
if (m_rtlSDRThread != 0) {
m_rtlSDRThread->setFcPos((int) m_settings.m_fcPos);
}
qDebug() << "RTLSDRInput::applySettings: set fc pos (enum) to " << (int) m_settings.m_fcPos;
}
if (m_dev != 0)
{
if (rtlsdr_set_center_freq( m_dev, deviceCenterFrequency ) != 0)
{
qDebug("rtlsdr_set_center_freq(%lld) failed", deviceCenterFrequency);
}
else
{
qDebug() << "RTLSDRInput::applySettings: center freq: " << m_settings.m_centerFrequency << " Hz"
<< " device center freq: " << deviceCenterFrequency << " Hz"
<< " device sample rate: " << devSampleRate << "S/s"
<< " Actual sample rate: " << devSampleRate/(1<<m_settings.m_log2Decim) << "S/s"
<< " img: " << f_img << "Hz";
if (rtlsdr_set_center_freq( m_dev, deviceCenterFrequency ) != 0) {
qWarning("RTLSDRInput::applySettings: rtlsdr_set_center_freq(%lld) failed", deviceCenterFrequency);
} else {
qDebug("RTLSDRInput::applySettings: rtlsdr_set_center_freq(%lld)", deviceCenterFrequency);
}
}
}
if ((m_settings.m_fcPos != settings.m_fcPos) || force)
{
m_settings.m_fcPos = settings.m_fcPos;
if (m_rtlSDRThread != 0)
{
m_rtlSDRThread->setFcPos((int) m_settings.m_fcPos);
}
qDebug() << "RTLSDRInput: set fc pos (enum) to " << (int) m_settings.m_fcPos;
}
if ((m_settings.m_noModMode != settings.m_noModMode) || force)
{
m_settings.m_noModMode = settings.m_noModMode;
qDebug() << "RTLSDRInput: set noModMode to " << m_settings.m_noModMode;
qDebug() << "RTLSDRInput::applySettings: set noModMode to " << m_settings.m_noModMode;
// Direct Modes: 0: off, 1: I, 2: Q, 3: NoMod.
if (m_settings.m_noModMode) {