33 lines
1017 B
Dart
33 lines
1017 B
Dart
class SubTitleUtils {
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// 格式整理
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static String convertToWebVTT(List jsonData) {
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String webVTTContent = 'WEBVTT FILE\n\n';
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for (int i = 0; i < jsonData.length; i++) {
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final item = jsonData[i];
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double from = item['from'] as double;
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double to = item['to'] as double;
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int sid = (item['sid'] ?? 0) as int;
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String content = item['content'] as String;
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webVTTContent += '$sid\n';
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webVTTContent += '${formatTime(from)} --> ${formatTime(to)}\n';
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webVTTContent += '$content\n\n';
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}
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return webVTTContent;
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}
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static String formatTime(num seconds) {
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final String h = (seconds / 3600).floor().toString().padLeft(2, '0');
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final String m = (seconds % 3600 / 60).floor().toString().padLeft(2, '0');
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final String s = (seconds % 60).floor().toString().padLeft(2, '0');
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final String ms =
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(seconds * 1000 % 1000).floor().toString().padLeft(3, '0');
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if (h == '00') {
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return "$m:$s.$ms";
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}
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return "$h:$m:$s.$ms";
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}
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}
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