Merge pull request #703 from SlotSun/dev-fix700

更新 user-agent 的时间戳计算方式 fix: #700

Author: xiaoyaocz

simple_live_core/lib/src/huya_site.dart

@@ -193,13 +193,14 @@ class HuyaSite implements LiveSite {
       var url = await getPlayUrl(line, quality.data["bitRate"]);
       ls.add(url);
     }
-    //var currentTs = DateTime.now().millisecondsSinceEpoch ~/ 1000;
+    // from stream-rec url:https://github.com/stream-rec/stream-rec
+    var validTs = 20000308;
+    var sysTs = DateTime.now().millisecondsSinceEpoch ~/ 1000;
+    var last8 = sysTs % 100000000;
+    var currentTs = last8 > validTs ? last8 : (validTs + sysTs ~/ 100);
     return LivePlayUrl(
       urls: ls,
-      headers: {
-        //"user-agent": "HYSDK(Windows, $currentTs)"
-        "user-agent": "HYSDK(Windows, 20000308)",
-      },
+      headers: {"user-agent": "HYSDK(Windows, $currentTs)"},
     );
   }