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add a convenient lua forward mapped buffers method

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Robin Gareus 2016-07-11 22:36:00 +02:00
parent 4537f5fb20
commit 57df370e2a
4 changed files with 60 additions and 2 deletions
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21
scripts/rawmidi.lua
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@ -46,8 +46,24 @@ function dsp_runmap (bufs, in_map, out_map, n_samples, offset)
-- The following code is needed with "dsp_runmap" to work for arbitrary pin connections
-- this passes though all audio/midi data unprocessed.
local audio_ins = in_map:count (): n_audio () -- number of audio input buffers
local audio_outs = out_map:count (): n_audio () -- number of audio output buffers
ARDOUR.DSP.process_map (bufs, in_map, out_map, n_samples, offset, ARDOUR.DataType ("audio"))
ARDOUR.DSP.process_map (bufs, in_map, out_map, n_samples, offset, ARDOUR.DataType ("midi"))
-- equivalent lua code.
-- NOTE: the lua implementation below is intended for io-config [-1,-1].
-- It only works for actually mapped channels due to in_map:count() out_map:count()
-- being identical to the i/o pin count in this case.
--
-- Plugins that have multiple possible configurations will need to implement
-- dsp_configure() and remember the actual channel count.
--
-- ARDOUR.DSP.process_map() does iterate over the mapping itself and works generally.
-- Still the lua code below does lend itself as elaborate example.
--
--[[
local audio_ins = in_map:count (): n_audio () -- number of mapped audio input buffers
local audio_outs = out_map:count (): n_audio () -- number of mapped audio output buffers
assert (audio_outs, audio_ins) -- ioconfig [-1, -1]: must match
-- copy audio data if any
@ -94,4 +110,5 @@ function dsp_runmap (bufs, in_map, out_map, n_samples, offset)
bufs:get_midi (ob):silence (n_samples, offset)
end
end
--]]
end