UDPSink plugin: rename volume to gain

plugins/channelrx/udpsrc/udpsrcplugin.cpp

@@ -15,16 +15,16 @@
 // along with this program. If not, see <http://www.gnu.org/licenses/>.          //
 ///////////////////////////////////////////////////////////////////////////////////
 
-#include "../../channelrx/udpsrc/udpsrcplugin.h"
+#include "udpsrcplugin.h"
 
 #include <QtPlugin>
 #include "plugin/pluginapi.h"
 
-#include "../../channelrx/udpsrc/udpsrcgui.h"
+#include "udpsrcgui.h"
 
 const PluginDescriptor UDPSrcPlugin::m_pluginDescriptor = {
 	QString("UDP Channel Source"),
-	QString("3.5.0"),
+	QString("3.6.0"),
 	QString("(c) Edouard Griffiths, F4EXB"),
 	QString("https://github.com/f4exb/sdrangel"),
 	true,

plugins/channeltx/udpsink/udpsinkgui.cpp

@@ -457,7 +457,7 @@ void UDPSinkGUI::on_udpPort_textEdited(const QString& arg1 __attribute__((unused
     ui->applyBtn->setEnabled(true);
 }
 
-void UDPSinkGUI::on_volume_valueChanged(int value)
+void UDPSinkGUI::on_gain_valueChanged(int value)
 {
     ui->gainText->setText(tr("%1").arg(value/10.0, 0, 'f', 1));
     applySettings();

plugins/channeltx/udpsink/udpsinkgui.h

@@ -67,7 +67,7 @@ private slots:
     void on_applyBtn_clicked();
     void onWidgetRolled(QWidget* widget, bool rollDown);
     void onMenuDoubleClicked();
-    void on_volume_valueChanged(int value);
+    void on_gain_valueChanged(int value);
     void on_squelch_valueChanged(int value);
     void on_channelMute_toggled(bool checked);
     void tick();

plugins/channeltx/udpsink/udpsinkgui.ui

@@ -76,7 +76,7 @@
       <item>
        <widget class="LevelMeterVU" name="volumeMeter" native="true">
         <property name="sizePolicy">
-         <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
+         <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
           <horstretch>0</horstretch>
           <verstretch>0</verstretch>
          </sizepolicy>
@@ -644,6 +644,12 @@
      <layout class="QHBoxLayout" name="GainLayout">
       <item>
        <widget class="QLabel" name="gainLabel">
+        <property name="minimumSize">
+         <size>
+          <width>0</width>
+          <height>22</height>
+         </size>
+        </property>
         <property name="text">
          <string>Gain</string>
         </property>

sdrbase/util/db.cpp

@@ -21,7 +21,8 @@ double CalcDb::dbPower(double magsq, double floordB)
 {
 	if (magsq > 0)
 	{
-		return 10.0 * log10(magsq);
+	    double val = 10.0 * log10(magsq);
+		return val > floordB ? val : floordB;
 	}
 	else
 	{