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livetrax/share/scripts/s_thin_automation.lua

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ardour { ["type"] = "Snippet", name = "Thin Fader Automation" }
-- --TODO--
-- For a fully fledged EditorAction this script should
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-- offer a dropdown to select automation of all parameters
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-- (not just the fader)
-- see scripts/midi_cc_to_automation.lua and
-- scripts/mixer_settings_store.lua
-- Thinning Area should also be a numeric-entry or slider
function factory () return function ()
-- get selected tracks
rl = Editor:get_selection ().tracks:routelist ()
-- prepare undo operation
Session:begin_reversible_command ("Thin Automation")
local add_undo = false -- keep track if something has changed
-- iterate over selected tracks
for r in rl:iter () do
-- get the Fader (aka "amp") control
local ac = r:amp ():gain_control () -- ARDOUR:AutomationControl
local al = ac:alist () -- ARDOUR:AutomationList
-- get state for undo
local before = al:get_state ()
-- remove dense events
al:thin (50) -- threashold of area below curve
-- save undo
local after = al:get_state ()
Session:add_command (al:memento_command (before, after))
add_undo = true
::out::
end
-- all done, commit the combined Undo Operation
if add_undo then
-- the 'nil' Commend here mean to use the collected diffs added above
Session:commit_reversible_command (nil)
else
Session:abort_reversible_command ()
end
end end