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script_name = "Chapter Generator"
script_description = "Makes XML chapters for matroska."
script_author = "garret"
script_version = "2.2.0"
script_namespace = "garret.chapters"
local haveDepCtrl, DependencyControl, depctrl = pcall(require, "l0.DependencyControl")
if haveDepCtrl then
depctrl = DependencyControl {
--feed="TODO",
}
end
local config = {language = "eng", language_ietf = "en"}
local function ms_to_human(start) -- From Significance
local timecode=math.floor(start/1000)
local tc1=math.floor(timecode/60)
local tc2=timecode%60
local tc3=start%1000
local tc4="00"
if tc2==60 then tc2=0 tc1=tc1+1 end
if tc1>119 then tc1=tc1-120 tc4="02" end
if tc1>59 then tc1=tc1-60 tc4="01" end
if tc1<10 then tc1="0"..tc1 end
if tc2<10 then tc2="0"..tc2 end
if tc3<100 then tc3="0"..tc3 end
linetime=tc4..":"..tc1..":"..tc2.."."..tc3
if linetime=="00:00:00.00" then linetime="00:00:00.033" end
return linetime
end
local function get_sane_path()
script_path = aegisub.decode_path("?script")
audio_path = aegisub.decode_path("?audio")
video_path = aegisub.decode_path("?video")
if script_path ~= "?script" then
return script_path
elseif video_path ~= "?video" then
return video_path
elseif audio_path ~= "?audio" then
return audio_path
else
return ""
end
end
local function get_user_path(default_dir)
local path = aegisub.dialog.save("Save Chapter File", default_dir, "chapters.xml", "XML files|*.xml|All Files|*", false)
return path
end
-- from arch.Util apparently
local function exact_ms_from_frame(frame)
--[[
MIT License
Copyright (c) 2022 arch1t3cht
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
]]
frame = frame + 1
local ms = aegisub.ms_from_frame(frame)
while true do
local new_ms = ms - 1
if new_ms < 0 or aegisub.frame_from_ms(new_ms) ~= frame then
break
end
ms = new_ms
end
return ms - 1
end
local function main(sub)
local times = {}
local names = {}
if aegisub.decode_path("?video") == "?video" then
aegisub.log(3, "you don't have a video open, times will be limited to centiseconds (realistically this is fine)\n")
end
for i=1,#sub do
local line = sub[i]
if line.class == "dialogue" then
local fx = line.effect
if fx:match("[Cc]hapter") or fx:match("[Cc]hptr") or fx:match("[Cc]hap") then
line.comment = true
local time = line.start_time
if aegisub.decode_path("?video") ~= "?video" then
-- cunning and devious scheme to get accurate milliseconds
time = math.max(exact_ms_from_frame(aegisub.frame_from_ms(line.start_time)), 0)
end
table.insert(times, time)
table.insert(names, line.text)
sub[i] = line
end
end
end
aegisub.set_undo_point(script_name)
local chapters = "<?xml version=\"1.0\"?>\n<!-- <!DOCTYPE Chapters SYSTEM \"matroskachapters.dtd\"> -->\n<Chapters>\n <EditionEntry>\n"
for j, k in ipairs(times) do
local humantime = ms_to_human(k)
local name = names[j]
chapters = chapters.." <ChapterAtom>\n <ChapterTimeStart>"..humantime.."</ChapterTimeStart>\n <ChapterDisplay>\n <ChapterString>"..name.."</ChapterString>\n <ChapLanguageIETF>"..config.language_ietf.."</ChapLanguageIETF>\n <ChapterLanguage>"..config.language.."</ChapterLanguage>\n </ChapterDisplay>\n </ChapterAtom>\n"
end
chapters = chapters.." </EditionEntry>\n</Chapters>"
sane_path = get_sane_path()
path = get_user_path(sane_path)
if path ~= nil then
local chapfile = io.open(path, "w")
chapfile:write(chapters)
chapfile:close()
else
aegisub.cancel()
end
end
if haveDepCtrl then
depctrl:registerMacro(main)
else
aegisub.register_macro(script_name, script_description, main)
end
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