From 2d956df50fbba8bbb6ac5bdf7111a48a6da9e5fb Mon Sep 17 00:00:00 2001
From: f4exb <f4exb06@gmail.com>
Date: Thu, 17 Aug 2017 17:21:38 +0200
Subject: [PATCH] AM demod plugin: slow down channel power refresh rate

---
 plugins/channelrx/demodam/amdemodgui.cpp | 9 +++++++--
 plugins/channelrx/demodam/amdemodgui.h   | 1 +
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/plugins/channelrx/demodam/amdemodgui.cpp b/plugins/channelrx/demodam/amdemodgui.cpp
index 4fc448eae..e6dbd745c 100644
--- a/plugins/channelrx/demodam/amdemodgui.cpp
+++ b/plugins/channelrx/demodam/amdemodgui.cpp
@@ -213,7 +213,8 @@ AMDemodGUI::AMDemodGUI(PluginAPI* pluginAPI, DeviceSourceAPI *deviceAPI, QWidget
 	m_channelMarker(this),
 	m_basicSettingsShown(false),
 	m_doApplySettings(true),
-	m_squelchOpen(false)
+	m_squelchOpen(false),
+	m_tickCount(0)
 {
 	ui->setupUi(this);
 	setAttribute(Qt::WA_DeleteOnClose, true);
@@ -312,7 +313,9 @@ void AMDemodGUI::tick()
             (100.0f + powDbPeak) / 100.0f,
             nbMagsqSamples);
 
-    ui->channelPower->setText(QString::number(powDbAvg, 'f', 1));
+    if (m_tickCount % 4 == 0) {
+        ui->channelPower->setText(QString::number(powDbAvg, 'f', 1));
+    }
 
 	bool squelchOpen = m_amDemod->getSquelchOpen();
 
@@ -326,5 +329,7 @@ void AMDemodGUI::tick()
 			ui->audioMute->setStyleSheet("QToolButton { background:rgb(79,79,79); }");
 		}
 	}
+
+	m_tickCount++;
 }
 
diff --git a/plugins/channelrx/demodam/amdemodgui.h b/plugins/channelrx/demodam/amdemodgui.h
index b11955d5f..f5f3e794a 100644
--- a/plugins/channelrx/demodam/amdemodgui.h
+++ b/plugins/channelrx/demodam/amdemodgui.h
@@ -61,6 +61,7 @@ private:
 	DownChannelizer* m_channelizer;
 	AMDemod* m_amDemod;
 	bool m_squelchOpen;
+	uint32_t m_tickCount;
 
 	explicit AMDemodGUI(PluginAPI* pluginAPI, DeviceSourceAPI *deviceAPI, QWidget* parent = NULL);
 	virtual ~AMDemodGUI();