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Code Issues Projects Releases Wiki Activity

Added basic variable decimation

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This commit is contained in:
f4exb
2015-05-09 16:44:26 +02:00
parent f07934cc80
commit 7ea41283e8
7 changed files with 131 additions and 4 deletions
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plugins/samplesource/rtlsdr/rtlsdrinput.cpp
+21 -1
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@@ -36,6 +36,7 @@ void RTLSDRInput::Settings::resetToDefaults()
m_gain = 0;
m_samplerate = 1024000;
m_loPpmCorrection = 0;
m_log2Decim = 4;
}
QByteArray RTLSDRInput::Settings::serialize() const
@@ -44,6 +45,7 @@ QByteArray RTLSDRInput::Settings::serialize() const
s.writeS32(1, m_gain);
s.writeS32(2, m_samplerate);
s.writeS32(3, m_loPpmCorrection);
s.writeU32(4, m_log2Decim);
return s.final();
}
@@ -60,6 +62,7 @@ bool RTLSDRInput::Settings::deserialize(const QByteArray& data)
d.readS32(1, &m_gain, 0);
//d.readS32(2, &m_samplerate, 0);
d.readS32(3, &m_loPpmCorrection, 0);
d.readU32(4, &m_log2Decim, 4);
return true;
} else {
resetToDefaults();
@@ -186,16 +189,26 @@ const QString& RTLSDRInput::getDeviceDescription() const
int RTLSDRInput::getSampleRate() const
{
int rate = m_settings.m_samplerate;
return (rate / (1<<m_settings.m_log2Decim));
/*
if (rate < 800000)
return (rate / 4);
if ((rate == 1152000) || (rate == 2048000))
return (rate / 8);
return (rate / 16);
*/
}
quint64 RTLSDRInput::getCenterFrequency() const
{
return m_generalSettings.m_centerFrequency;
if (m_settings.m_log2Decim == 0) // Little wooby-doop if no decimation
{
return m_generalSettings.m_centerFrequency + (m_settings.m_samplerate / 4);
}
else
{
return m_generalSettings.m_centerFrequency;
}
}
bool RTLSDRInput::handleMessage(Message* message)
@@ -245,6 +258,13 @@ bool RTLSDRInput::applySettings(const GeneralSettings& generalSettings, const Se
}
}
if((m_settings.m_log2Decim != settings.m_log2Decim) || force) {
if(m_dev != NULL) {
m_settings.m_log2Decim = settings.m_log2Decim;
m_rtlSDRThread->setLog2Decimation(settings.m_log2Decim);
}
}
m_generalSettings.m_centerFrequency = generalSettings.m_centerFrequency;
if(m_dev != NULL) {
if(rtlsdr_set_center_freq( m_dev, m_generalSettings.m_centerFrequency