From 3a3dc0d8c0eaddc4e99748000af697e4d0dec05f Mon Sep 17 00:00:00 2001
From: f4exb <f4exb06@gmail.com>
Date: Sat, 10 Jul 2021 22:41:24 +0200
Subject: [PATCH] Channel Analyzer / Scope: fixed sample rate handling. Fixes
 #956

---
 plugins/channelrx/chanalyzer/chanalyzer.cpp   | 21 ++++++++++++++++++-
 plugins/channelrx/chanalyzer/chanalyzer.h     |  3 +--
 .../channelrx/chanalyzer/chanalyzergui.cpp    |  4 ++++
 sdrgui/gui/glscopegui.cpp                     |  2 +-
 4 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/plugins/channelrx/chanalyzer/chanalyzer.cpp b/plugins/channelrx/chanalyzer/chanalyzer.cpp
index 0873811a7..732109e91 100644
--- a/plugins/channelrx/chanalyzer/chanalyzer.cpp
+++ b/plugins/channelrx/chanalyzer/chanalyzer.cpp
@@ -23,6 +23,7 @@
 
 #include "device/deviceapi.h"
 #include "dsp/dspcommands.h"
+#include "dsp/devicesamplesource.h"
 #include "chanalyzer.h"
 
 MESSAGE_CLASS_DEFINITION(ChannelAnalyzer::MsgConfigureChannelAnalyzer, Message)
@@ -38,7 +39,7 @@ ChannelAnalyzer::ChannelAnalyzer(DeviceAPI *deviceAPI) :
 {
     qDebug("ChannelAnalyzer::ChannelAnalyzer");
     setObjectName(m_channelId);
-
+    getChannelSampleRate();
     m_basebandSink = new ChannelAnalyzerBaseband();
     m_basebandSink->moveToThread(&m_thread);
 
@@ -62,6 +63,18 @@ ChannelAnalyzer::~ChannelAnalyzer()
     qDebug("ChannelAnalyzer::~ChannelAnalyzer: done");
 }
 
+int ChannelAnalyzer::getChannelSampleRate()
+{
+    DeviceSampleSource *source = m_deviceAPI->getSampleSource();
+
+    if (source) {
+        m_basebandSampleRate = source->getSampleRate();
+    }
+
+    qDebug("ChannelAnalyzer::getChannelSampleRate: %d", m_basebandSampleRate);
+    return m_basebandSampleRate;
+}
+
 void ChannelAnalyzer::feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool positiveOnly)
 {
     (void) positiveOnly;
@@ -82,6 +95,12 @@ void ChannelAnalyzer::start()
     ChannelAnalyzerBaseband::MsgConfigureChannelAnalyzerBaseband *msg =
         ChannelAnalyzerBaseband::MsgConfigureChannelAnalyzerBaseband::create(m_settings, true);
     m_basebandSink->getInputMessageQueue()->push(msg);
+
+    if (getMessageQueueToGUI())
+    {
+        DSPSignalNotification *notifToGUI = new DSPSignalNotification(m_basebandSampleRate, m_centerFrequency);
+        getMessageQueueToGUI()->push(notifToGUI);
+    }
 }
 
 void ChannelAnalyzer::stop()
diff --git a/plugins/channelrx/chanalyzer/chanalyzer.h b/plugins/channelrx/chanalyzer/chanalyzer.h
index dcf4a27d7..9079ccfea 100644
--- a/plugins/channelrx/chanalyzer/chanalyzer.h
+++ b/plugins/channelrx/chanalyzer/chanalyzer.h
@@ -63,8 +63,7 @@ public:
     SpectrumVis *getSpectrumVis() { return &m_spectrumVis; }
     ScopeVis *getScopeVis() { return &m_scopeVis; }
     void setScopeVis(ScopeVis *scopeVis) { m_basebandSink->setScopeVis(scopeVis); }
-
-    int getChannelSampleRate() const { return m_basebandSink->getChannelSampleRate(); }
+    int getChannelSampleRate();
     int getDecimation() const { return 1<<m_settings.m_log2Decim; }
 	double getMagSq() const { return m_basebandSink->getMagSq(); }
 	double getMagSqAvg() const { return m_basebandSink->getMagSqAvg(); }
diff --git a/plugins/channelrx/chanalyzer/chanalyzergui.cpp b/plugins/channelrx/chanalyzer/chanalyzergui.cpp
index c9dea7616..9ab184553 100644
--- a/plugins/channelrx/chanalyzer/chanalyzergui.cpp
+++ b/plugins/channelrx/chanalyzer/chanalyzergui.cpp
@@ -231,6 +231,7 @@ bool ChannelAnalyzerGUI::handleMessage(const Message& message)
     {
         DSPSignalNotification& cmd = (DSPSignalNotification&) message;
         m_basebandSampleRate = cmd.getSampleRate();
+        qDebug("ChannelAnalyzerGUI::handleMessage: DSPSignalNotification: m_basebandSampleRate: %d", m_basebandSampleRate);
         setSinkSampleRate();
     }
 
@@ -470,6 +471,8 @@ ChannelAnalyzerGUI::ChannelAnalyzerGUI(PluginAPI* pluginAPI, DeviceUISet *device
 	connect(this, SIGNAL(customContextMenuRequested(const QPoint &)), this, SLOT(onMenuDialogCalled(const QPoint &)));
 
 	m_channelAnalyzer = (ChannelAnalyzer*) rxChannel;
+    m_basebandSampleRate = m_channelAnalyzer->getChannelSampleRate();
+    qDebug("ChannelAnalyzerGUI::ChannelAnalyzerGUI: m_basebandSampleRate: %d", m_basebandSampleRate);
     m_spectrumVis = m_channelAnalyzer->getSpectrumVis();
 	m_spectrumVis->setGLSpectrum(ui->glSpectrum);
     m_scopeVis = m_channelAnalyzer->getScopeVis();
@@ -557,6 +560,7 @@ void ChannelAnalyzerGUI::setSinkSampleRate()
 	ui->sinkSampleRateText->setText(tr("%1 kS/s").arg(s));
 
 	m_scopeVis->setLiveRate(sinkSampleRate == 0 ? 48000 : sinkSampleRate);
+    ui->scopeGUI->setSampleRate(sinkSampleRate == 0 ? 48000 : sinkSampleRate);
 }
 
 void ChannelAnalyzerGUI::setFiltersUIBoundaries()
diff --git a/sdrgui/gui/glscopegui.cpp b/sdrgui/gui/glscopegui.cpp
index 0c4ee0980..af618e259 100644
--- a/sdrgui/gui/glscopegui.cpp
+++ b/sdrgui/gui/glscopegui.cpp
@@ -130,7 +130,7 @@ void GLScopeGUI::setBuddies(MessageQueue* messageQueue, ScopeVis* scopeVis, GLSc
 
 void GLScopeGUI::setSampleRate(int sampleRate)
 {
-    m_sampleRate = sampleRate;
+    onScopeSampleRateChanged(sampleRate);
 }
 
 void GLScopeGUI::onScopeSampleRateChanged(int sampleRate)