From bdb5aec1cc9d987f309f82f9fde50aad6bf96a15 Mon Sep 17 00:00:00 2001
From: Damien Zammit <damien@zamaudio.com>
Date: Sat, 29 May 2021 12:54:10 +1000
Subject: [PATCH] ptimport: Fix crash when imported session has zero audio
 tracks

---
 libs/ardour/import_pt.cc | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/libs/ardour/import_pt.cc b/libs/ardour/import_pt.cc
index 3d9e979f3f..604fd0016c 100644
--- a/libs/ardour/import_pt.cc
+++ b/libs/ardour/import_pt.cc
@@ -335,6 +335,11 @@ Session::import_pt_rest (PTFFormat& ptf)
 		}
 	}
 
+	/* Check for no audio */
+	if (ptf.tracks ().size () == 0) {
+		goto no_audio_tracks;
+	}
+
 	/* Create all tracks */
 	ntr = (ptf.tracks ().at (ptf.tracks ().size () - 1)).index + 1;
 	nth = -1;
@@ -387,6 +392,7 @@ Session::import_pt_rest (PTFFormat& ptf)
 		(*pl).playlist->thaw ();
 	}
 
+no_audio_tracks:
 	/* MIDI - Find list of unique midi tracks first */
 
 	for (vector<PTFFormat::track_t>::const_iterator a = ptf.miditracks ().begin (); a != ptf.miditracks ().end (); ++a) {