diff options
Diffstat (limited to 'libs/ardour/smf_source.cc')
| -rw-r--r-- | libs/ardour/smf_source.cc | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libs/ardour/smf_source.cc b/libs/ardour/smf_source.cc index c8b9e254fb..f69b1788a0 100644 --- a/libs/ardour/smf_source.cc +++ b/libs/ardour/smf_source.cc @@ -362,6 +362,7 @@ SMFSource::set_state (const XMLNode& node, int version) void SMFSource::mark_streaming_midi_write_started (NoteMode mode, sframes_t start_frame) { + Glib::Mutex::Lock lm (_lock); MidiSource::mark_streaming_midi_write_started (mode, start_frame); Evoral::SMF::begin_write (); _last_ev_time_beats = 0.0; @@ -371,6 +372,7 @@ SMFSource::mark_streaming_midi_write_started (NoteMode mode, sframes_t start_fra void SMFSource::mark_streaming_write_completed () { + Glib::Mutex::Lock lm (_lock); MidiSource::mark_streaming_write_completed(); if (!writable()) { |