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Diffstat (limited to 'share/scripts/_midigenerator2.lua')
| -rw-r--r-- | share/scripts/_midigenerator2.lua | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/share/scripts/_midigenerator2.lua b/share/scripts/_midigenerator2.lua new file mode 100644 index 0000000000..6bd904b097 --- /dev/null +++ b/share/scripts/_midigenerator2.lua @@ -0,0 +1,34 @@ +ardour { + ["type"] = "dsp", + name = "MIDI Generator II", + category = "Example", + license = "MIT", + author = "Ardour Lua Task Force", + description = [[An Example Midi Generator for prototyping.]] +} + +function dsp_ioconfig () + return { { midi_in = 1, midi_out = 1, audio_in = -1, audio_out = -1}, } +end + +function dsp_runmap (bufs, in_map, out_map, n_samples, offset) + local ob = out_map:get (ARDOUR.DataType ("midi"), 0) + if ob ~= ARDOUR.ChanMapping.Invalid then + local mb = bufs:get_midi (ob) + + -- see _midigenerator.lua for + -- how to use a timed sequence + + local ba = C.ByteVector () -- construct a byte vector + ba:add ({0x90, 64, 127}) -- add some data to the vector + -- send a message at cycle-start + mb:push_back (offset, ba:size (), ba:to_array()); + + ba:clear () + ba:add ({0x80, 64, 127}) + mb:push_back (n_samples - 1 - offset, ba:size (), ba:to_array()); + end + + -- passthrough audio, apply pin/channel mapping + ARDOUR.DSP.process_map (bufs, in_map, out_map, n_samples, offset, ARDOUR.DataType ("audio")) +end |