fixed crash potential issues where nframes may be 0

[ardour.git] / libs / ardour / route.cc

diff --git a/libs/ardour/route.cc b/libs/ardour/route.cc
index 5d3cd942e7f2c6afc400cbb4a97f1f6c259d90cf..7f7b56cc2bbea152ae3a13916b46b3d388e8177f 100644 (file)
--- a/libs/ardour/route.cc
+++ b/libs/ardour/route.cc
@@ -444,7 +444,7 @@ Route::process_output_buffers (vector<Sample*>& bufs, uint32_t nbufs,
                                }
                        }
                        
-                       if (apply_gain_automation && _session.transport_rolling()) {
+                       if (apply_gain_automation && _session.transport_rolling() && nframes > 0) {
                                _effective_gain = gab[nframes-1];
                        }