Differentiate between pitch-shift (for audio) and transpose (for MIDI). Fixes #3940.

git-svn-id: svn://localhost/ardour2/branches/3.0@9299 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 8 insertions, 0 deletions

diff --git a/libs/ardour/midi_region.cc b/libs/ardour/midi_region.cc
index f4058377b6..f8640e0197 100644
--- a/libs/ardour/midi_region.cc
+++ b/libs/ardour/midi_region.cc
@@ -378,3 +378,11 @@ MidiRegion::fix_negative_start ()
 	model()->insert_silence_at_start (c.from (-_start));
 	_start = 0;
 }
+
+/** Transpose the notes in this region by a given number of semitones */
+void
+MidiRegion::transpose (int semitones)
+{
+	BeatsFramesConverter c (_session.tempo_map(), _start);
+	model()->transpose (c.from (_start), c.from (_start + _length), semitones);
+}