Add tom's additions to tom's loop and turn it into an Action Script
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@ -1,4 +1,4 @@
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ardour { ["type"] = "Snippet", name = "Tom's Loop",
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ardour { ["type"] = "EditorAction", name = "Tom's Loop",
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license = "MIT",
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author = "Robin Gareus",
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email = "robin@gareus.org",
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@ -6,16 +6,15 @@ ardour { ["type"] = "Snippet", name = "Tom's Loop",
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description = [[Bounce the loop-range of all non muted audio tracks, paste N times at playhead]]
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}
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-- unused ; cfg parameter for ["type"] = "EditorAction"
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function action_params ()
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return { ["times"] = { title = "Number of copies to add", default = "1"}, }
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end
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function factory () return function ()
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function factory (params) return function ()
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-- get options
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local p = params or {}
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local npaste = p["times"] or 1
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assert (npaste > 0)
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local n_paste = tonumber (p["times"] or 1)
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assert (n_paste > 0)
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local proc = ARDOUR.LuaAPI.nil_proc () -- bounce w/o processing
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local itt = ARDOUR.InterThreadInfo () -- bounce progress info (unused)
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@ -38,33 +37,67 @@ function factory () return function ()
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Session:begin_reversible_command ("Tom's Loop")
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local add_undo = false -- keep track if something has changed
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-- prefer solo'ed tracks
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local soloed_track_found = false
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for route in Session:get_tracks ():iter () do
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-- skip muted tracks
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if route:soloed () then
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soloed_track_found = true
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break
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end
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end
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-- count regions that are bounced
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local n_regions_created = 0
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-- loop over all tracks in the session
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for route in Session:get_tracks ():iter () do
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if soloed_track_found then
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-- skip not soloed tracks
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if not route:soloed () then
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goto continue
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end
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end
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-- skip muted tracks (also applies to soloed + muted)
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if route:muted () then
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goto continue
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end
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-- at this point the track is either soloed (if at least one track is soloed)
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-- or not muted (if no track is soloed)
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-- test if bouncing is possible
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local track = route:to_track ()
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if not track:bounceable (proc, false) then
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goto continue
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end
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-- only audio tracks
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local playlist = track:playlist ()
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if playlist:data_type ():to_string () ~= "audio" then
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goto continue
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end
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-- check if there are any regions in the loop-range of this track
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if playlist:regions_touched (loop:start (), loop:_end ()):empty () then
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-- check if there is at least one unmuted region in the loop-range
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local reg_unmuted_count = 0
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for reg in playlist:regions_touched (loop:start (), loop:_end ()):iter () do
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if not reg:muted() then
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reg_unmuted_count = reg_unmuted_count + 1
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end
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end
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if reg_unmuted_count < 1 then
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goto continue
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end
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-- clear existing changes, prepare "diff" of state
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-- clear existing changes, prepare "diff" of state for undo
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playlist:to_stateful ():clear_changes ()
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-- do the actual work
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local region = track:bounce_range (loop:start (), loop:_end (), itt, proc, false)
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playlist:add_region (region, playhead, npaste, false)
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playlist:add_region (region, playhead, n_paste, false)
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n_regions_created = n_regions_created + 1
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-- create a diff of the performed work, add it to the session's undo stack
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-- and check if it is not empty
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@ -74,12 +107,21 @@ function factory () return function ()
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::continue::
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end
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--advance playhead so it's just after the newly added regions
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if n_regions_created > 0 then
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Session:request_locate((playhead + loop:length() * n_paste),false)
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end
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-- all done, commit the combined Undo Operation
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if add_undo then
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-- the 'nil' Commend here mean to use the collected diffs added above
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-- the 'nil' Command here mean to use the collected diffs added above
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Session:commit_reversible_command (nil)
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else
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Session:abort_reversible_command ()
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end
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print ("bounced " .. n_regions_created .. " regions from loop range (" .. loop:length() .. " frames) to playhead @ frame # " .. playhead)
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::errorout::
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end end
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