基础实现代码框架先上，后面慢慢改逻辑

2026-08-23 19:24:16 +08:00
parent 6c4e77ca00
commit 9a60441e04
9 changed files with 446 additions and 1 deletions
@@ -0,0 +1,16 @@
+// lib/metadata/metadata_constants.dart
+class MetadataConstants {
+  /// 首次 metadata 触发延迟（播放开始后等待时间）
+  static const Duration initialTriggerDelay = Duration(seconds: 20);
+
+  /// 重新确认进度点
+  static const double recheckProgress75 = 0.75;
+
+  static const double recheckProgress100 = 1.0;
+
+  /// 置信度阈值
+  static const double confidenceThreshold = 0.6;
+
+  /// 最小历史证据数量
+  static const int minHistoryCount = 4;
+}