Tempo cramps - do not allow tempos to share the same frame.

diff --git a/libs/ardour/tempo.cc b/libs/ardour/tempo.cc
index ce9a8d95134f1eb97af73035388f1a9629a4c8d3..2f1678467e018e5e506115280b077fe02ac1d513 100644 (file)
--- a/libs/ardour/tempo.cc
+++ b/libs/ardour/tempo.cc
@@ -1988,6 +1988,11 @@ TempoMap::check_solved (Metrics& metrics, bool by_frame)
                                if ((by_frame && t->frame() < prev_ts->frame()) || (!by_frame && t->pulse() < prev_ts->pulse())) {
                                        return false;
                                }
+
+                               if (t->frame() == prev_ts->frame()) {
+                                       return false;
+                               }
+
                                /* precision check ensures pulses and frames align independent of lock style.*/
                                if (by_frame && t->frame() != prev_ts->frame_at_pulse (t->pulse(), _frame_rate)) {
                                        return false;