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authornick_m <mainsbridge@gmail.com>2017-03-10 03:59:25 +1100
committernick_m <mainsbridge@gmail.com>2017-03-10 03:59:25 +1100
commit87d474b39114ae856dd8880142c206971b81878a (patch)
treee87caa5241f0dc0481e66d2c51c69ef5b0d82bcd /libs/ardour/tempo.cc
parente04d2376740a79a792275afa971e0ad38b72dddb (diff)
fix potential crash in LV2Plugin::connect_and_run() when music starts after 0
Diffstat (limited to 'libs/ardour/tempo.cc')
-rw-r--r--libs/ardour/tempo.cc4
1 files changed, 4 insertions, 0 deletions
diff --git a/libs/ardour/tempo.cc b/libs/ardour/tempo.cc
index bb61fb7012..cc40ef5532 100644
--- a/libs/ardour/tempo.cc
+++ b/libs/ardour/tempo.cc
@@ -1609,6 +1609,10 @@ TempoMap::metric_at (framepos_t frame, Metrics::const_iterator* last) const
Glib::Threads::RWLock::ReaderLock lm (lock);
TempoMetric m (first_meter(), first_tempo());
+ if (last) {
+ *last = ++_metrics.begin();
+ }
+
/* at this point, we are *guaranteed* to have m.meter and m.tempo pointing
at something, because we insert the default tempo and meter during
TempoMap construction.