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