Also move Lua scripts to share subfolder

share/scripts/export_mp4chaps.lua

@@ -0,0 +1,78 @@
+ardour {
+	["type"] = "EditorAction",
+	name = "Export markers as mp4chaps",
+	author = "Johannes Mueller",
+	description = [[
+Exports MP4chaps of all markers except xruns. The markers are stored in the
+export directory of the session in mp4 chapter marks format. The filename
+is mp4chaps.txt
+
+Note that there's always a chapter mark "Intro" at 00:00:00.000 as some
+players can't live without it. If there are no exportable markers, the file
+is not created.
+
+This is a bit more convenient than the export option, as one does not
+have to wait for the export.
+]],
+	license = "GPLv2"
+}
+
+function factory (unused_params) return function ()
+
+	local fr = Session:sample_rate()
+	local chaps = {}
+
+	for l in Session:locations():list():iter() do
+		local name = l:name()
+		if not l:is_mark() or string.find(name, "^xrun%d*$") then
+			goto next end
+
+		local t = l:start() - Session:current_start_sample()
+		local h = math.floor(t / (3600*fr))
+		local r = t - (h*3600*fr)
+		local m = math.floor(r / (60*fr))
+		r = r - m*60*fr
+		local s = math.floor(r / fr)
+		r = r - s*fr
+		local ms = math.floor(r*1000/fr)
+		table.insert(chaps, string.format("%02d:%02d:%02d.%03d %s\n", h, m, s, ms, name))
+		::next::
+	end
+
+	if next(chaps) == nil then
+		goto out end
+
+	table.insert(chaps, "00:00:00.000 Intro\n")
+	table.sort(chaps)
+
+	file = io.open(ARDOUR.LuaAPI.build_filename (Session:path(), "export", "mp4chaps.txt"), "w")
+	for i, line in ipairs(chaps) do
+		file:write(line)
+	end
+	file:close()
+
+	::out::
+end end
+
+function icon (params) return function (ctx, width, height, fg)
+	local mh = height - 3.5;
+	local m3 = width / 3;
+	local m6 = width / 6;
+
+	ctx:set_line_width (.5)
+	ctx:set_source_rgba (ARDOUR.LuaAPI.color_to_rgba (fg))
+
+	ctx:move_to (width / 2 - m6, 2)
+	ctx:rel_line_to (m3, 0)
+	ctx:rel_line_to (0, mh * 0.4)
+	ctx:rel_line_to (-m6, mh * 0.6)
+	ctx:rel_line_to (-m6, -mh * 0.6)
+	ctx:close_path ()
+	ctx:stroke ()
+
+	local txt = Cairo.PangoLayout (ctx, "ArdourMono ".. math.ceil(math.min (width, height) * .5) .. "px")
+	txt:set_text ("MP4")
+	local tw, th = txt:get_pixel_size ()
+	ctx:move_to (.5 * (width - tw), .5 * (height - th))
+	txt:show_in_cairo_context (ctx)
+end end