6 author = "Robin Gareus",
7 email = "robin@gareus.org",
8 site = "http://gareus.org",
9 description = [[An Example Midi Filter for prototyping.]]
12 function dsp_ioconfig ()
13 return { { audio_in = 0, audio_out = 0}, }
16 function dsp_has_midi_input () return true end
17 function dsp_has_midi_output () return true end
19 function dsp_run (_, _, n_samples)
20 assert (type(midiin) == "table")
21 assert (type(midiout) == "table")
24 function tx_midi (time, data)
26 midiout[cnt]["time"] = time;
27 midiout[cnt]["data"] = data;
31 -- for each incoming midi event
32 for _,b in pairs (midiin) do
33 local t = b["time"] -- t = [ 1 .. n_samples ]
34 local d = b["data"] -- get midi-event
36 if (#d == 3 and bit32.band (d[1], 240) == 144) then -- note on
39 if (#d == 3 and bit32.band (d[1], 240) == 128) then -- note off