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c77e0de976
Add a full TTML (Timed Text Markup Language) sidecar lyrics parser that extracts word/syllable-level timing from <span> elements, plus translation and pronunciation (transliteration) tracks from Apple Music TTML metadata sections. Backend changes: - TTML parser (core/lyrics/ttml.go) with support for all TTML time formats, nested timing contexts, and bare decimal second offsets - Translation/pronunciation tracks resolved via key-based metadata linking - Line timing hydration from token-level start/end values - 'kind' field added to Lyrics model and StructuredLyric API response (main/translation/pronunciation) - 'tokenLine' array in API response for word-level timing data - UTF-8 BOM and UTF-16 LE encoding support for TTML files - Fix for ambiguous time resolution in pronunciation spans (pre-1-minute) Frontend changes: - KaraokeLyricsOverlay rewritten with scrollable multi-line layout, word-level wipe highlighting with eased alpha transitions, rAF-driven playback clock with drift correction - Inline translation (above) and pronunciation (below) each main line, with smart filtering to hide redundant lines (same normalized text) - TR/PR toggle buttons and layer selection via selectLyricLayers() - Click-to-seek: click any lyric line to jump to that position - Customization popover with font-size sliders and color presets for each line type (TR/Default/PR), persisted to localStorage - Smooth font-size transition between active and inactive lines - Resizable overlay height via drag handle - lyrics.js: resolveKaraokeTokenWindow, buildSyntheticWordTokens, findLayerLineIndexForMain, token sorting, collapsed timing detection API extension (non-breaking, additive): - tokenLine[].token[] provides per-word start/end timing (ms) - tokenLine[].index maps back to the corresponding line[] entry - kind field: 'main', 'translation', 'pronunciation' - Clients ignoring tokenLine/kind continue to work unchanged
26 lines
984 B
XML
26 lines
984 B
XML
<?xml version="1.0" encoding="UTF-8"?>
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<tt xmlns="http://www.w3.org/ns/ttml" xmlns:itunes="http://music.apple.com/lyric-ttml-internal">
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<head>
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<metadata>
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<iTunesMetadata xmlns="http://music.apple.com/lyric-ttml-internal">
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<translations>
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<translation xml:lang="es">
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<text for="L1">Hola</text>
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</translation>
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</translations>
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<transliterations>
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<transliteration xml:lang="ja-Latn">
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<text for="L2"><span begin="00:02.000" end="00:02.300" xmlns="http://www.w3.org/ns/ttml">ko</span><span begin="00:02.300" end="00:02.600" xmlns="http://www.w3.org/ns/ttml">nni</span></text>
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</transliteration>
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</transliterations>
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</iTunesMetadata>
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</metadata>
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</head>
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<body xml:lang="ja">
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<div>
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<p begin="00:01.000" end="00:01.500" itunes:key="L1">こんにちは</p>
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<p begin="00:02.000" end="00:02.700" itunes:key="L2">こんばんは</p>
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</div>
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</body>
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</tt>
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