From f93735755be0926a497418e1ecfd07e3af7870f5 Mon Sep 17 00:00:00 2001
From: Steffen Baranowsky <BaraMGB@freenet.de>
Date: Sat, 11 Feb 2017 18:58:06 +0100
Subject: [PATCH] fix crash on export per command line with sample track
 (#3341)

---
 src/tracks/SampleTrack.cpp | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/tracks/SampleTrack.cpp b/src/tracks/SampleTrack.cpp
index f754a2513..e699fb7bf 100644
--- a/src/tracks/SampleTrack.cpp
+++ b/src/tracks/SampleTrack.cpp
@@ -74,7 +74,10 @@ SampleTCO::SampleTCO( Track * _track ) :
 
 	//care about positionmarker
 	TimeLineWidget * timeLine = Engine::getSong()->getPlayPos( Engine::getSong()->Mode_PlaySong ).m_timeLine;
-	connect( timeLine, SIGNAL( positionMarkerMoved() ), this, SLOT( playbackPositionChanged() ) );
+	if( timeLine )
+	{
+		connect( timeLine, SIGNAL( positionMarkerMoved() ), this, SLOT( playbackPositionChanged() ) );
+	}
 	//care about loops
 	connect( Engine::getSong(), SIGNAL( updateSampleTracks() ), this, SLOT( playbackPositionChanged() ) );
 	//care about mute TCOs
@@ -84,7 +87,10 @@ SampleTCO::SampleTCO( Track * _track ) :
 	//care about TCO position
 	connect( this, SIGNAL( positionChanged() ), this, SLOT( updateTrackTcos() ) );
 	//playbutton clicked or space key
-	connect( gui->songEditor(), SIGNAL( playTriggered() ), this, SLOT( playbackPositionChanged() ) );
+	if( gui )
+	{
+		connect( gui->songEditor(), SIGNAL( playTriggered() ), this, SLOT( playbackPositionChanged() ) );
+	}
 
 	switch( getTrack()->trackContainer()->type() )
 	{