SDRdaemon plugin: report LZ4 compression ratio

plugins/samplesource/sdrdaemon/sdrdaemonbuffer.h

@@ -74,6 +74,7 @@ public:
 	bool isSyncLocked() const { return m_syncLock; }
 	uint32_t getFrameSize() const { return m_frameSize; }
 	bool isLz4Compressed() const { return m_lz4; }
+	float getCompressionRatio() const { return (m_frameSize ? (float) m_lz4InSize / (float) m_frameSize : 1.0); }
 
 	static const int m_udpPayloadSize;
 	static const int m_sampleSize;

plugins/samplesource/sdrdaemon/sdrdaemongui.cpp

@@ -202,6 +202,7 @@ bool SDRdaemonGui::handleMessage(const Message& message)
 		m_syncLocked = ((SDRdaemonInput::MsgReportSDRdaemonStreamTiming&)message).getSyncLock();
 		m_frameSize = ((SDRdaemonInput::MsgReportSDRdaemonStreamTiming&)message).getFrameSize();
 		m_lz4 = ((SDRdaemonInput::MsgReportSDRdaemonStreamTiming&)message).getLz4Compression();
+		m_compressionRatio = ((SDRdaemonInput::MsgReportSDRdaemonStreamTiming&)message).getLz4Compression();
 		updateWithStreamTime();
 		return true;
 	}
@@ -319,6 +320,9 @@ void SDRdaemonGui::updateWithStreamTime()
 	} else {
 		ui->lz4Compressed->setStyleSheet("QToolButton { background:rgb(79,79,79); }");
 	}
+
+	s = QString::number(m_compressionRatio, 'f', 2);
+	ui->compressionRatioText->setText(tr("%1").arg(s));
 }
 
 void SDRdaemonGui::tick()

plugins/samplesource/sdrdaemon/sdrdaemongui.h

@@ -62,6 +62,7 @@ private:
 	bool m_syncLocked;
 	uint32_t m_frameSize;
 	bool m_lz4;
+	float m_compressionRatio;
 
 	int m_samplesCount;
 	std::size_t m_tickCount;

plugins/samplesource/sdrdaemon/sdrdaemongui.ui

@@ -4,7 +4,7 @@
  <widget class="QWidget" name="SDRdaemonGui">
   <property name="minimumSize">
    <size>
-    <width>360</width>
+    <width>340</width>
     <height>0</height>
    </size>
   </property>
@@ -472,7 +472,7 @@
        </property>
        <property name="maximumSize">
         <size>
-         <width>50</width>
+         <width>80</width>
          <height>16777215</height>
         </size>
        </property>

plugins/samplesource/sdrdaemon/sdrdaemoninput.h

@@ -176,13 +176,15 @@ public:
 				uint32_t tv_usec,
 				bool syncLock,
 				uint32_t frameSize,
-				bool lz4)
+				bool lz4,
+				float compressionRatio)
 		{
 			return new MsgReportSDRdaemonStreamTiming(tv_sec,
 					tv_usec,
 					syncLock,
 					frameSize,
-					lz4);
+					lz4,
+					compressionRatio);
 		}
 
 	protected:
@@ -191,18 +193,21 @@ public:
 		bool m_syncLock;
 		uint32_t m_frameSize;
 		bool m_lz4;
+		float m_compressionRatio;
 
 		MsgReportSDRdaemonStreamTiming(uint32_t tv_sec,
 				uint32_t tv_usec,
 				bool syncLock,
 				uint32_t frameSize,
-				bool lz4) :
+				bool lz4,
+				float compressionRatio) :
 			Message(),
 			m_tv_sec(tv_sec),
 			m_tv_usec(tv_usec),
 			m_syncLock(syncLock),
 			m_frameSize(frameSize),
-			m_lz4(lz4)
+			m_lz4(lz4),
+			m_compressionRatio(compressionRatio)
 		{ }
 	};
 

plugins/samplesource/sdrdaemon/sdrdaemonudphandler.cpp

@@ -211,7 +211,8 @@ void SDRdaemonUDPHandler::tick()
 			m_tv_usec,
 			m_sdrDaemonBuffer.isSyncLocked(),
 			m_sdrDaemonBuffer.getFrameSize(),
-			m_sdrDaemonBuffer.isLz4Compressed());
+			m_sdrDaemonBuffer.isLz4Compressed(),
+			m_sdrDaemonBuffer.getCompressionRatio());
 		m_outputMessageQueueToGUI->push(report);
 	}
 }