X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Faudio_diskstream.cc;h=60b21bbc22c1fa5c24a2acc1f9ca96d851a1ae0c;hb=c95c221493e03ee029223531d459c14b4d4d392d;hp=e0086fa2950d5b0919b0d39741999d1444584927;hpb=b37e3229f79afdda9a37021f5dd8d4655b754be6;p=ardour.git

diff --git a/libs/ardour/audio_diskstream.cc b/libs/ardour/audio_diskstream.cc
index e0086fa295..60b21bbc22 100644
--- a/libs/ardour/audio_diskstream.cc
+++ b/libs/ardour/audio_diskstream.cc
@@ -148,7 +148,7 @@ AudioDiskstream::free_working_buffers()
 void
 AudioDiskstream::non_realtime_input_change ()
 {
-	bool need_new_write_sources = false;
+	bool need_write_sources = false;
 
 	{
 		Glib::Threads::Mutex::Lock lm (state_lock);
@@ -157,6 +157,11 @@ AudioDiskstream::non_realtime_input_change ()
 			return;
 		}
 
+		boost::shared_ptr<ChannelList> cr = channels.reader();
+		if (!cr->empty() && !cr->front()->write_source) {
+			need_write_sources = true;
+		}
+
 		if (input_change_pending.type == IOChange::ConfigurationChanged) {
 			RCUWriter<ChannelList> writer (channels);
 			boost::shared_ptr<ChannelList> c = writer.get_copy();
@@ -169,7 +174,7 @@ AudioDiskstream::non_realtime_input_change ()
 				remove_channel_from (c, _n_channels.n_audio() - _io->n_ports().n_audio());
 			}
 
-			need_new_write_sources = true;
+			need_write_sources = true;
 		}
 
 		if (input_change_pending.type & IOChange::ConnectionsChanged) {
@@ -183,7 +188,7 @@ AudioDiskstream::non_realtime_input_change ()
 		/* implicit unlock */
 	}
 
-	if (need_new_write_sources) {
+	if (need_write_sources) {
 		reset_write_sources (false);
 	}