NFM modulator: pull a number of input audio samples depending on tota…

…l interpolation. Fixes issue #43
f4exb · Aug 6, 2017 · 18b22b5 · 18b22b5
1 parent fdfa435
commit 18b22b5
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Showing 3 changed files with 8 additions and 4 deletions.
diff --git a/plugins/channeltx/modnfm/nfmmod.cpp b/plugins/channeltx/modnfm/nfmmod.cpp
@@ -154,7 +154,7 @@ void NFMMod::pull(Sample& sample)
 
 void NFMMod::pullAudio(int nbSamples)
 {
-    unsigned int nbSamplesAudio = nbSamples * m_interpolatorDistance;
+    unsigned int nbSamplesAudio = nbSamples * ((Real) m_config.m_audioSampleRate / (Real) m_config.m_basebandSampleRate);
 
     if (nbSamplesAudio > m_audioBuffer.size())
     {
@@ -291,13 +291,15 @@ bool NFMMod::handleMessage(const Message& cmd)
 	{
 		UpChannelizer::MsgChannelizerNotification& notif = (UpChannelizer::MsgChannelizerNotification&) cmd;
 
-		m_config.m_outputSampleRate = notif.getSampleRate();
+		m_config.m_basebandSampleRate = notif.getBasebandSampleRate();
+        m_config.m_outputSampleRate = notif.getSampleRate();
 		m_config.m_inputFrequencyOffset = notif.getFrequencyOffset();
 
 		apply();
 
 		qDebug() << "NFMMod::handleMessage: MsgChannelizerNotification:"
-				<< " m_outputSampleRate: " << m_config.m_outputSampleRate
+				<< " m_basebandSampleRate: " << m_config.m_basebandSampleRate
+                << " m_outputSampleRate: " << m_config.m_outputSampleRate
 				<< " m_inputFrequencyOffset: " << m_config.m_inputFrequencyOffset;
 
 		return true;

diff --git a/plugins/channeltx/modnfm/nfmmod.h b/plugins/channeltx/modnfm/nfmmod.h
@@ -293,6 +293,7 @@ class NFMMod : public BasebandSampleSource {
     };
 
     struct Config {
+        int m_basebandSampleRate;
         int m_outputSampleRate;
         qint64 m_inputFrequencyOffset;
         Real m_rfBandwidth;
@@ -307,6 +308,7 @@ class NFMMod : public BasebandSampleSource {
         float m_ctcssFrequency;
 
         Config() :
+            m_basebandSampleRate(0),
             m_outputSampleRate(-1),
             m_inputFrequencyOffset(0),
             m_rfBandwidth(-1),

diff --git a/plugins/channeltx/modnfm/nfmmodplugin.cpp b/plugins/channeltx/modnfm/nfmmodplugin.cpp
@@ -23,7 +23,7 @@
 
 const PluginDescriptor NFMModPlugin::m_pluginDescriptor = {
     QString("NFM Modulator"),
-    QString("3.5.0"),
+    QString("3.5.4"),
     QString("(c) Edouard Griffiths, F4EXB"),
     QString("https://github.com/f4exb/sdrangel"),
     true,