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Audio->MIDI script: properly handle MIDI-region start-offset

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This commit is contained in:
Robin Gareus 2016-10-09 16:42:47 +02:00
parent f58cf226e0
commit 631c8afc66
1 changed files with 5 additions and 5 deletions
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10
scripts/_vamp_audio_to_midi.lua
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@ -15,10 +15,9 @@ function factory () return function ()
end
end
assert (ar and mr)
assert (mr:position () >= mr:start ())
local a_off = ar:position ()
local m_off = tm:exact_beat_at_frame (mr:position () - mr:start (), 0)
local b_off = 4.0 * mr:pulse () - mr:start_beats ():to_double ()
vamp:analyze (ar:to_readable (), 0, nil)
local fl = vamp:plugin ():getRemainingFeatures ():at (0)
@ -29,10 +28,11 @@ function factory () return function ()
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 (a_off + ft, 0)
local be = tm:exact_beat_at_frame (a_off + ft + fd, 0)
local pos = Evoral.Beats (bs - m_off)
local bs = tm:exact_qn_at_frame (a_off + ft, 0)
local be = tm:exact_qn_at_frame (a_off + ft + fd, 0)
local pos = Evoral.Beats (bs - b_off)
local len = Evoral.Beats (be - bs)
local note = ARDOUR.LuaAPI.new_noteptr (1, pos, len, fn + 1, 0x7f)
midi_command:add (note)