diff options
| -rw-r--r-- | libs/ardour/midi_track.cc | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/libs/ardour/midi_track.cc b/libs/ardour/midi_track.cc index a104336c9e..3c43266219 100644 --- a/libs/ardour/midi_track.cc +++ b/libs/ardour/midi_track.cc @@ -348,6 +348,12 @@ MidiTrack::roll (nframes_t nframes, framepos_t start_frame, framepos_t end_frame BufferSet& bufs = _session.get_scratch_buffers (n_process_buffers()); MidiBuffer& mbuf (bufs.get_midi (0)); + /* we are a MIDI track, so we always start the chain with a single-channel diskstream */ + ChanCount c; + c.set_audio (0); + c.set_midi (1); + bufs.set_count (c); + diskstream->get_playback (mbuf, start_frame, end_frame); /* append immediate messages to the first MIDI buffer (thus sending it to the first output port) */ |