From bb1aa327f8f957628b3580f7650b47f5d2a97f2f Mon Sep 17 00:00:00 2001
From: Hans Baier <hansfbaier@googlemail.com>
Date: Fri, 13 Feb 2009 08:28:54 +0000
Subject: [PATCH] * MIDIClock_Slave: Fix for devices that always send MIDI
 clock (not just between start/stop)

git-svn-id: svn://localhost/ardour2/branches/3.0@4542 d708f5d6-7413-0410-9779-e7cbd77b26cf
---
 libs/ardour/midi_clock_slave.cc | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/libs/ardour/midi_clock_slave.cc b/libs/ardour/midi_clock_slave.cc
index ef3aacb4c6..09583ae7c6 100644
--- a/libs/ardour/midi_clock_slave.cc
+++ b/libs/ardour/midi_clock_slave.cc
@@ -114,7 +114,12 @@ MIDIClock_Slave::calculate_filter_coefficients()
 
 void
 MIDIClock_Slave::update_midi_clock (Parser& parser, nframes_t timestamp)
-{					
+{	
+	// some pieces of hardware send MIDI Clock all the time				
+	if ( (!_starting) && (!_started) ) {
+		return;
+	}
+	
 	// the number of midi clock messages (zero-based)
 	static long midi_clock_count;