Truncate syllables which extend past the end of the line rather than...

Truncate syllables which extend past the end of the line rather than normalizing all of the syllable lengths

aegisub/src/ass_karaoke.cpp

@@ -143,17 +143,15 @@ void AssKaraoke::SetLine(AssDialogue *line, bool auto_split, bool normalize) {
 		if (last_end < end_time)
 			syls.back().duration += end_time - last_end;
 		else if (last_end > end_time) {
-			// Shrink each syllable proportionately
-			int start_time = active_line->Start;
-			double scale_factor = double(end_time - start_time) / (last_end - start_time);
-
+			// Truncate any syllables that extend past the end of the line
 			for (size_t i = 0; i < size(); ++i) {
-				syls[i].start_time = start_time + scale_factor * (syls[i].start_time - start_time);
+				if (syls[i].start_time > end_time) {
+					syls[i].start_time = end_time;
+					syls[i].duration = 0;
+				}
+				else {
+					syls[i].duration = std::min(syls[i].duration, end_time - syls[i].start_time);
 				}
-
-			for (int i = size(); i > 0; --i) {
-				syls[i - 1].duration = end_time - syls[i - 1].start_time;
-				end_time = syls[i - 1].start_time;
 			}
 		}
 	}