ardour/scripts/add_filters.lua

55 lines
1.3 KiB
Lua

ardour {
["type"] = "EditorAction",
name = "Add Filters",
license = "MIT",
author = "PSmith",
description = [[Add 'HPF/LPF' Lua Processor to all Tracks]]
}
function action_params ()
return
{
["unique"] = { title = "Only add HPF/LPF if not already present (yes/no)", default = "yes"},
["position"] = { title = "Insert Position from top (0,..)", default = "0"},
}
end
function factory (params)
return function ()
-- get configuration
local p = params or {}
local uniq = p["unique"] or "yes"
local pos = p["position"] or 0
-- loop over all tracks
for t in Session:get_tracks():iter() do
local insert = true;
-- check if filters are present
if uniq ~= "no" then
local proc;
local i = 0;
repeat
-- get Nth Ardour::Processor
proc = t:nth_plugin (i)
-- check if it's a filter
if (not proc:isnil() and proc:display_name () == "a-High/Low Pass Filter") then
insert = false;
end
i = i + 1
until proc:isnil() or insert == false
end
-- create a new processor and insert it
if insert then
local a = ARDOUR.LuaAPI.new_luaproc(Session, "a-High/Low Pass Filter");
if (not a:isnil()) then
t:add_processor_by_index(a, pos, nil, true)
a = nil -- explicitly drop shared-ptr reference
end
end
end
end
end