FreeDV demod: added a resync button

plugins/channelrx/demodfreedv/freedvdemod.cpp

@@ -40,6 +40,7 @@
 #include "freedvdemod.h"
 
 MESSAGE_CLASS_DEFINITION(FreeDVDemod::MsgConfigureFreeDVDemod, Message)
+MESSAGE_CLASS_DEFINITION(FreeDVDemod::MsgResyncFreeDVDemod, Message)
 MESSAGE_CLASS_DEFINITION(FreeDVDemod::MsgConfigureFreeDVDemodPrivate, Message)
 MESSAGE_CLASS_DEFINITION(FreeDVDemod::MsgConfigureChannelizer, Message)
 
@@ -84,13 +85,13 @@ void FreeDVDemod::FreeDVStats::collect(struct freedv *freeDV)
         m_ber = m_ber < 0 ? 0 : m_ber;
         m_berFrameCount = 0;
         m_lastTotalBitErrors = m_totalBitErrors;
+        qDebug("FreeDVStats::collect: demod sync: %d sync metric: %f demod snr: %3.2f dB  BER: %d clock offset: %f freq offset: %f",
+            m_sync, m_syncMetric, m_snrEst, m_ber, m_clockOffset, m_freqOffset);
     }
 
     m_berFrameCount++;
     m_frameCount++;
 
-    qDebug("FreeDVStats::collect: demod sync: %d sync metric: %f demod snr: %3.2f dB  BER: %d clock offset: %f freq offset: %f",
-        m_sync, m_syncMetric, m_snrEst, m_ber, m_clockOffset, m_freqOffset);
 
 }
 
@@ -327,6 +328,14 @@ bool FreeDVDemod::handleMessage(const Message& cmd)
 
         return true;
     }
+    else if (MsgResyncFreeDVDemod::match(cmd))
+    {
+        qDebug("FreeDVDemod::handleMessage: MsgResyncFreeDVDemod");
+        m_settingsMutex.lock();
+        freedv_set_sync(m_freeDV, unsync);
+        m_settingsMutex.unlock();
+        return true;
+    }
     else if (BasebandSampleSink::MsgThreadedSink::match(cmd))
     {
         BasebandSampleSink::MsgThreadedSink& cfg = (BasebandSampleSink::MsgThreadedSink&) cmd;

plugins/channelrx/demodfreedv/freedvdemod.h

@@ -71,6 +71,19 @@ public:
         { }
     };
 
+	class MsgResyncFreeDVDemod : public Message {
+		MESSAGE_CLASS_DECLARATION
+
+	public:
+        static MsgResyncFreeDVDemod* create() {
+            return new MsgResyncFreeDVDemod();
+        }
+
+	private:
+		MsgResyncFreeDVDemod()
+		{}
+	};
+
     class MsgConfigureChannelizer : public Message {
         MESSAGE_CLASS_DECLARATION
 

plugins/channelrx/demodfreedv/freedvdemodgui.cpp

@@ -151,6 +151,12 @@ void FreeDVDemodGUI::on_deltaFrequency_changed(qint64 value)
     applySettings();
 }
 
+void FreeDVDemodGUI::on_reSync_clicked(bool checked)
+{
+    FreeDVDemod::MsgResyncFreeDVDemod* message = FreeDVDemod::MsgResyncFreeDVDemod::create();
+    m_freeDVDemod->getInputMessageQueue()->push(message);
+}
+
 void FreeDVDemodGUI::on_freeDVMode_currentIndexChanged(int index)
 {
     m_settings.m_freeDVMode = (FreeDVDemodSettings::FreeDVMode) index;

plugins/channelrx/demodfreedv/freedvdemodgui.h

@@ -96,6 +96,7 @@ private:
 
 private slots:
 	void on_deltaFrequency_changed(qint64 value);
+	void on_reSync_clicked(bool checked);
     void on_freeDVMode_currentIndexChanged(int index);
 	void on_volume_valueChanged(int value);
 	void on_agc_toggled(bool checked);

plugins/channelrx/demodfreedv/freedvdemodgui.ui

@@ -172,6 +172,28 @@
         <property name="leftMargin">
          <number>6</number>
         </property>
+        <item>
+         <widget class="QPushButton" name="reSync">
+          <property name="minimumSize">
+           <size>
+            <width>22</width>
+            <height>0</height>
+           </size>
+          </property>
+          <property name="maximumSize">
+           <size>
+            <width>22</width>
+            <height>16777215</height>
+           </size>
+          </property>
+          <property name="toolTip">
+           <string>Force re-synchronization</string>
+          </property>
+          <property name="text">
+           <string>S</string>
+          </property>
+         </widget>
+        </item>
         <item>
          <widget class="QComboBox" name="freeDVMode">
           <property name="toolTip">