diff options
| author | Robin Gareus <robin@gareus.org> | 2019-09-02 21:20:26 +0200 |
|---|---|---|
| committer | Robin Gareus <robin@gareus.org> | 2019-09-02 21:20:26 +0200 |
| commit | ab68ed413117ae6ae08a33d453f98f42857433dc (patch) | |
| tree | 56dd931501d2e02116f04f09709e2774b63e372f /scripts | |
| parent | 215bc64455e777e6113572191eaa8f165d8b6a7f (diff) | |
Proper error messages for Audio2MIDI script
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/vamp_audio_to_midi.lua | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/scripts/vamp_audio_to_midi.lua b/scripts/vamp_audio_to_midi.lua index b7db5d6dce..2f9101196c 100644 --- a/scripts/vamp_audio_to_midi.lua +++ b/scripts/vamp_audio_to_midi.lua @@ -18,7 +18,7 @@ function factory () return function () local sr = Session:nominal_sample_rate () local tm = Session:tempo_map () local vamp = ARDOUR.LuaAPI.Vamp ("libardourvampplugins:qm-transcription", sr) - local midi_region + local midi_region = nil local audio_regions = {} local start_time = Session:current_end_sample () local end_time = Session:current_start_sample () @@ -41,7 +41,16 @@ function factory () return function () midi_region = r:to_midiregion() end end - assert (audio_regions and midi_region) + + if #audio_regions == 0 then + LuaDialog.Message ("Polyphonic Audio to MIDI", "No source audio region(s) selected.\nAt least one audio-region to be analyzed need to be selected.", LuaDialog.MessageType.Error, LuaDialog.ButtonType.Close):run () + return + end + if not midi_region then + LuaDialog.Message ("Polyphonic Audio to MIDI", "No target MIDI region selected.\nA MIDI region, ideally empty, and extending beyond the selected audio-region(s) needs to be selected.", LuaDialog.MessageType.Error, LuaDialog.ButtonType.Close):run () + return + end + midi_region:set_initial_position(start_time) midi_region:set_length(end_time - start_time, 0) |