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-rw-r--r--libs/ardour/midi_source.cc14
1 files changed, 12 insertions, 2 deletions
diff --git a/libs/ardour/midi_source.cc b/libs/ardour/midi_source.cc
index 54b287cbdf..94c1a9b811 100644
--- a/libs/ardour/midi_source.cc
+++ b/libs/ardour/midi_source.cc
@@ -112,9 +112,19 @@ MidiSource::set_state (const XMLNode& node, int /*version*/)
return 0;
}
-sframes_t
-MidiSource::length (sframes_t pos) const
+bool
+MidiSource::empty () const
{
+ return _length_beats == 0;
+}
+
+framecnt_t
+MidiSource::length (framepos_t pos) const
+{
+ if (_length_beats == 0) {
+ return 0;
+ }
+
BeatsFramesConverter converter(_session.tempo_map(), pos);
return converter.to(_length_beats);
}