From c63f7f775d221359815b9b687a912e16c5645583 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Fri, 3 Nov 2017 04:14:23 +0100
Subject: Don't crash when auditioning empty .mid files.

---
 libs/ardour/auditioner.cc | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libs/ardour/auditioner.cc b/libs/ardour/auditioner.cc
index a202fd8554..080a11703b 100644
--- a/libs/ardour/auditioner.cc
+++ b/libs/ardour/auditioner.cc
@@ -377,6 +377,11 @@ Auditioner::audition_region (boost::shared_ptr<Region> region)
 		offset = the_region->sync_offset (dir);
 	}
 
+	if (length == 0) {
+		error << _("Cannot audition empty file.") << endmsg;
+		return;
+	}
+
 	/* can't audition from a negative sync point */
 
 	if (dir < 0) {
-- 
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