Fix #967 (#1378)

* Fix #967

* Start Smoothing in pause mode to avoid resource usage, if hyperion is started without active priority

* Update Changelog

CHANGELOG.md

@@ -12,8 +12,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+- Colors Smoothing is started in pause mode to save resources, when Hyperion starts with no active source
+
 ### Fixed
 
+- Fixes that the Led-Device output flow was interrupted, by an enabling API request on an already enabled device (#967
 - Yeelight - Workaround: Ignore error when setting music mode = off, but the music-mode is already off (#1372)
 - Standalone grabbers: Improved fps help/error text, fixed default address and port
 

libsrc/hyperion/Hyperion.cpp

@@ -124,6 +124,9 @@ void Hyperion::start()
 	_deviceSmooth = new LinearColorSmoothing(getSetting(settings::SMOOTHING), this);
 	connect(this, &Hyperion::settingsChanged, _deviceSmooth, &LinearColorSmoothing::handleSettingsUpdate);
 
+	//Start in pause mode, a new priority will activate smoothing (either start-effect or grabber)
+	_deviceSmooth->setPause(true);
+
 	// create the message forwarder only on main instance
 	if (_instIndex == 0)
 	{

libsrc/hyperion/LinearColorSmoothing.cpp

@@ -539,11 +539,6 @@ void LinearColorSmoothing::clearQueuedColors()
 
 void LinearColorSmoothing::componentStateChange(hyperion::Components component, bool state)
 {
-	if (component == hyperion::COMP_LEDDEVICE)
-	{
-		clearQueuedColors();
-	}
-
 	if (component == hyperion::COMP_SMOOTHING)
 	{
 		setEnable(state);