blob: be9742ff59131993ad9599a8b06012c3484fb672 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
ardour { ["type"] = "EditorAction", name = "Vamp Audio to MIDI" }
function factory () return function ()
local sel = Editor:get_selection ()
local sr = Session:nominal_frame_rate ()
local tm = Session:tempo_map ()
local vamp = ARDOUR.LuaAPI.Vamp ("libardourvampplugins:qm-transcription", sr)
local ar = nil
local mr = nil
for r in sel.regions:regionlist ():iter () do
if r:to_midiregion():isnil() then
ar = r
else
mr = r:to_midiregion()
end
end
-- analyze audio from selected audio region to selected midi region
assert (ar and mr)
vamp:analyze (ar:to_readable (), 0, nil)
local fl = vamp:plugin ():getRemainingFeatures ():at (0)
if fl and fl:size() > 0 then
local mm = mr:midi_source(0):model()
local midi_command = mm:new_note_diff_command ("Audio2Midi")
for f in fl:iter () do
local ft = Vamp.RealTime.realTime2Frame (f.timestamp, sr)
local fd = Vamp.RealTime.realTime2Frame (f.duration, sr)
local fn = f.values:at (0)
local bs = tm:exact_beat_at_frame (ft, 0)
local be = tm:exact_beat_at_frame (ft + fd, 0)
local pos = Evoral.Beats (bs)
local len = Evoral.Beats (be - bs)
local note = ARDOUR.LuaAPI.new_noteptr (1, pos, len, fn + 1, 0x7f)
midi_command:add (note)
end
mm:apply_command (Session, midi_command)
end
end end
|