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fix(subtitles): suppress sweep stragglers and drop-shadow glyph doubles

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sudacode
2026-08-23 21:11:51 -07:00
parent 0ac5db1c92
commit 6d1a1b841a
3 changed files with 127 additions and 18 deletions
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src/core/services/subtitle-cue-parser.test.ts
+26
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@@ -1570,3 +1570,29 @@ test('parseSubtitleCues suppresses a karaoke highlight sweep without publishing
assert.equal(cues.length, 1);
assert.equal(cues[0]?.text.replace(/\s+/gu, ''), 'tosouomo');
});
test('parseSubtitleCues collapses drop-shadow layer copies offset by a few pixels', () => {
const fragments = [
['me', 580],
['no', 668],
['mae', 770],
['ni', 864],
['no', 939],
['bi', 996],
['ru', 1049],
] as const;
const content = [
'[Events]',
'Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text',
...fragments.flatMap(([fragment, x], index) => [
`Dialogue: 30,0:01:42.00,0:01:46.92,OP Romaji,,0,0,0,fx,{\\pos(${x},25)\\bord0\\t(${index * 2},${index * 2 + 120},\\blur0.5)}${fragment}`,
// Shadow copy sits 4px off the base glyph and must not read as a second syllable.
`Dialogue: 29,0:01:42.00,0:01:46.92,OP Romaji,,0,0,0,fx,{\\pos(${x + 4},29)\\c&HFFFFFF&\\t(${index * 2},${index * 2 + 120},\\blur9)}${fragment}`,
`Dialogue: 28,0:01:42.00,0:01:46.92,OP Romaji,,0,0,0,fx,{\\pos(${x},25)\\c&HFFFFFF&\\t(${index * 2},${index * 2 + 120},\\blur9)}${fragment}`,
]),
].join('\n');
const cues = parseSubtitleCues(content, 'test.ass');
assert.equal(cues.length, 1);
assert.equal(cues[0]?.text.replace(/\s+/gu, ''), 'menomaeninobiru');
});