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35 lines
1.1 KiB
Lua
35 lines
1.1 KiB
Lua
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ardour { ["type"] = "Snippet", name = "Evaluate Region Gain Curve" }
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-- see also "Set Region Gain Curve" snippet
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function factory () return function ()
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local sel = Editor:get_selection ()
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-- iterate over selected regions
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-- http://manual.ardour.org/lua-scripting/class_reference/#ArdourUI:RegionSelection
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for r in sel.regions:regionlist ():iter () do
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-- test if it's an audio region
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local ar = r:to_audioregion ();
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if ar:isnil () then
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goto next
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end
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-- get region-gain-curve is-a
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-- http://manual.ardour.org/lua-scripting/class_reference/#ARDOUR:AutomationList
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local al = ar:envelope ()
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-- evaluate at 3 seconds (interpolated value)
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print ("Value at 3sec", al:eval(Temporal.timepos_t(Session:nominal_sample_rate () * 3)))
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-- iterate over events in the Automation List
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for ev in al:events():iter() do
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-- each event is-a https://manual.ardour.org/lua-scripting/class_reference/#Evoral:ControlEvent
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-- when is-a https://manual.ardour.org/lua-scripting/class_reference/#Temporal:timepos_t
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print (ev.when, ev.value)
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end
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::next::
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end
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end end
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