Initial commit: QZMusic Web version

src/utils/lyricUtil.ts

@@ -0,0 +1,57 @@
+import {LyricLine, parseLrc, parseQrc, parseTTML, parseYrc} from "@applemusic-like-lyrics/lyric";
+const sanitizeLyricLines = (lines: LyricLine[]): LyricLine[] => {
+    const defaultLineDuration = 3000
+    const toFiniteNumber = (v: any, fallback: number) => {
+        const n = typeof v === 'number' ? v : Number(v)
+        return Number.isFinite(n) ? n : fallback
+    }
+    const cleaned: LyricLine[] = []
+    for (const rawLine of lines || []) {
+        const rawWords = Array.isArray((rawLine as any).words) ? (rawLine as any).words : []
+        const fixedWords: any[] = []
+        let prevEnd = -1
+        for (const rawWord of rawWords) {
+            const rawStart = toFiniteNumber(rawWord?.startTime, Number.NaN)
+            const rawEnd = toFiniteNumber(rawWord?.endTime, Number.NaN)
+            if (!Number.isFinite(rawStart)) continue
+            let startTime = Math.max(0, rawStart)
+            if (startTime < prevEnd) startTime = prevEnd
+            let endTime = Number.isFinite(rawEnd) ? rawEnd : startTime + 1
+            if (endTime <= startTime) endTime = startTime + 1
+            prevEnd = endTime
+            fixedWords.push({ ...rawWord, startTime, endTime })
+        }
+        if (fixedWords.length === 0) continue
+
+        const firstWordStart = fixedWords[0].startTime
+        const lastWordEnd = fixedWords[fixedWords.length - 1].endTime
+        let startTime = toFiniteNumber((rawLine as any).startTime, firstWordStart)
+        startTime = Math.max(0, startTime)
+        let endTime = toFiniteNumber((rawLine as any).endTime, lastWordEnd)
+        if (!Number.isFinite(endTime) || endTime <= startTime) endTime = startTime + defaultLineDuration
+        if (endTime < lastWordEnd) endTime = lastWordEnd
+
+        cleaned.push({ ...(rawLine as any), startTime, endTime, words: fixedWords })
+    }
+    cleaned.sort((a: any, b: any) => (a?.startTime ?? 0) - (b?.startTime ?? 0))
+    return cleaned
+}
+interface LyricData {
+    ttml?: string,
+    yrc?: string,
+    lrc?: string,
+    qrc?: string
+}
+export function parseLyric(lyric: LyricData):LyricLine[] {
+    let parsed:LyricLine[] = []
+    if (lyric.ttml != undefined) {
+        parsed = parseTTML(lyric.ttml).lines;
+    } else if (lyric.yrc != undefined) {
+        parsed = parseYrc(lyric.yrc);
+    } else if (lyric.lrc != undefined) {
+        parsed = parseLrc(lyric.lrc);
+    } else if (lyric.qrc != undefined) {
+        parsed = parseQrc(lyric.qrc)
+    }
+    return sanitizeLyricLines(parsed);
+}