From 7321248916db84d5fe9594eba61ec124ae52cea7 Mon Sep 17 00:00:00 2001
From: Ben Loftis <ben@harrisonconsoles.com>
Date: Sat, 12 Mar 2022 11:57:54 -0600
Subject: [PATCH] triggerbox: do not try to set the {segment} tempo if there is
 no region

* divide-by-zero was resulting in NaNs in the snapshot file
---
 libs/ardour/triggerbox.cc | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libs/ardour/triggerbox.cc b/libs/ardour/triggerbox.cc
index 887e2c3eb4..19470ceaec 100644
--- a/libs/ardour/triggerbox.cc
+++ b/libs/ardour/triggerbox.cc
@@ -1189,6 +1189,11 @@ AudioTrigger::set_stretch_mode (Trigger::StretchMode sm)
 void
 AudioTrigger::set_segment_tempo (double t)
 {
+	if (!_region) {
+		_segment_tempo = 0;
+		return;
+	}
+
 	if (t<=0.) {
 		/*special case: we're told the file has no defined tempo.
 		 * this can happen from crazy user input (0 beat length or somesuch), or if estimate_tempo() fails entirely