Use std::make_unique

src/engine/gstenginepipeline.cpp

@@ -21,6 +21,7 @@
 
 #include "config.h"
 
+#include <memory>
 #include <cstdlib>
 #include <cstdint>
 #include <cstring>
@@ -1216,7 +1217,7 @@ void GstEnginePipeline::StartFader(const qint64 duration_nanosec, const QTimeLin
     }
   }
 
-  fader_.reset(new QTimeLine(duration_msec, this));
+  fader_ = std::make_unique<QTimeLine>(duration_msec, this);
   QObject::connect(fader_.get(), &QTimeLine::valueChanged, this, &GstEnginePipeline::SetVolumeModifier);
   QObject::connect(fader_.get(), &QTimeLine::finished, this, &GstEnginePipeline::FaderTimelineFinished);
   fader_->setDirection(direction);