4faf44588f
- Evoral::Beats operator!= would prevent an increment of start_beats by intervals of less than a tick, so its possible that other subtle problems existed due to this kind of thing.
43 lines
1.4 KiB
Lua
43 lines
1.4 KiB
Lua
ardour { ["type"] = "EditorAction", name = "Vamp Audio to MIDI",
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description = "analyze audio from selected audio region to selected midi region" }
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function factory () return function ()
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local sel = Editor:get_selection ()
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local sr = Session:nominal_frame_rate ()
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local tm = Session:tempo_map ()
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local vamp = ARDOUR.LuaAPI.Vamp ("libardourvampplugins:qm-transcription", sr)
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local ar, mr
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for r in sel.regions:regionlist ():iter () do
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if r:to_midiregion():isnil() then
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ar = r
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else
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mr = r:to_midiregion()
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end
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end
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assert (ar and mr)
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local a_off = ar:position ()
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local b_off = 4.0 * mr:pulse () - mr:start_beats ()
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vamp:analyze (ar:to_readable (), 0, nil)
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local fl = vamp:plugin ():getRemainingFeatures ():at (0)
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if fl and fl:size() > 0 then
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local mm = mr:midi_source(0):model()
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local midi_command = mm:new_note_diff_command ("Audio2Midi")
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for f in fl:iter () do
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local ft = Vamp.RealTime.realTime2Frame (f.timestamp, sr)
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local fd = Vamp.RealTime.realTime2Frame (f.duration, sr)
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local fn = f.values:at (0)
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local bs = tm:exact_qn_at_frame (a_off + ft, 0)
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local be = tm:exact_qn_at_frame (a_off + ft + fd, 0)
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local pos = Evoral.Beats (bs - b_off)
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local len = Evoral.Beats (be - bs)
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local note = ARDOUR.LuaAPI.new_noteptr (1, pos, len, fn + 1, 0x7f)
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midi_command:add (note)
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end
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mm:apply_command (Session, midi_command)
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end
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end end
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