1 files changed, 56 insertions, 0 deletions
diff --git a/config/mpv/scripts/subs2srsa/subtitles/subtitle.lua b/config/mpv/scripts/subs2srsa/subtitles/subtitle.lua
new file mode 100644
index 0000000..4e8df41
--- /dev/null
+++ b/config/mpv/scripts/subs2srsa/subtitles/subtitle.lua
@@ -0,0 +1,56 @@
+--[[
+Copyright: Ren Tatsumoto and contributors
+License: GNU GPL, version 3 or later; http://www.gnu.org/licenses/gpl.html
+
+Subtitle class provides methods for storing and comparing subtitle lines.
+]]
+
+local mp = require('mp')
+
+local Subtitle = {
+    ['text'] = '',
+    ['secondary'] = '',
+    ['start'] = -1,
+    ['end'] = -1,
+}
+
+function Subtitle:new(o)
+    o = o or {}
+    setmetatable(o, self)
+    self.__index = self
+    return o
+end
+
+function Subtitle:now(secondary)
+    local prefix = secondary and "secondary-" or ""
+    local this = self:new {
+        ['text'] = mp.get_property(prefix .. "sub-text"),
+        ['start'] = mp.get_property_number(prefix .. "sub-start"),
+        ['end'] = mp.get_property_number(prefix .. "sub-end"),
+    }
+    if this:is_valid() then
+        return this:delay(mp.get_property_native("sub-delay") - mp.get_property_native("audio-delay"))
+    else
+        return nil
+    end
+end
+
+function Subtitle:delay(delay)
+    self['start'] = self['start'] + delay
+    self['end'] = self['end'] + delay
+    return self
+end
+
+function Subtitle:is_valid()
+    return self['start'] and self['end'] and self['start'] >= 0 and self['end'] > self['start']
+end
+
+Subtitle.__eq = function(lhs, rhs)
+    return lhs['text'] == rhs['text']
+end
+
+Subtitle.__lt = function(lhs, rhs)
+    return lhs['start'] < rhs['start']
+end
+
+return Subtitle