X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Faudio_unit.cc;h=0482ff2bb655e8503ef0226f5316020c52af8b0f;hb=cbef72b8a13;hp=4dba7ea83503fac39fa5825ece5838df8a8d7fc2;hpb=51e33796f14e91b26b78f62902ea80bffa555c20;p=ardour.git

diff --git a/libs/ardour/audio_unit.cc b/libs/ardour/audio_unit.cc
index 4dba7ea835..0482ff2bb6 100644
--- a/libs/ardour/audio_unit.cc
+++ b/libs/ardour/audio_unit.cc
@@ -1639,7 +1639,7 @@ AUPlugin::render_callback(AudioUnitRenderActionFlags*,
 int
 AUPlugin::connect_and_run (BufferSet& bufs,
 		samplepos_t start, samplepos_t end, double speed,
-		ChanMapping in_map, ChanMapping out_map,
+		ChanMapping const& in_map, ChanMapping const& out_map,
 		pframes_t nframes, samplecnt_t offset)
 {
 	Plugin::connect_and_run(bufs, start, end, speed, in_map, out_map, nframes, offset);