支持通过网页增加、删除、修改摄像头配置信息

支持摄像头配置信息中句柄的设置，并实测有效

SHH.CameraSdk/Core/Scheduling/FrameRequirement.cs

@@ -7,6 +7,36 @@
 /// </summary>
 public class FrameRequirement
 {
+    public FrameRequirement()
+    {
+    }
+
+    public FrameRequirement(SubscriptionDto dto)
+    {
+        // 1. 核心标识
+        this.AppId = dto.AppId;
+        this.Type = dto.Type;
+
+        // 2. 流控参数
+        this.TargetFps = dto.DisplayFps;
+
+        // 3. 业务动态参数
+        this.Memo = dto.Memo;
+        this.Handle = dto.Handle;
+        this.RecordDuration = dto.RecordDuration;
+        this.SavePath = dto.SavePath;
+
+        // 4. 网络转发相关参数 (补全)
+        this.Protocol = dto.Protocol;
+        this.TargetIp = dto.TargetIp;
+        this.TargetPort = dto.TargetPort;
+
+        // 5. 初始化内部统计状态
+        this.LastCaptureTick = Environment.TickCount64;
+        this._lastFpsCalcTick = Environment.TickCount64;
+        this.IsActive = true;
+    }
+
     #region --- 订阅者核心标识 (Subscriber Core Identification) ---
 
     /// <summary> 订阅者唯一ID（如 "Client_A"、"AI_Service"、"WPF_Display_Main"） </summary>
@@ -81,16 +111,20 @@ public class FrameRequirement
     /// <remarks> 每当成功分发一帧后调用，内部自动按秒计算 RealFps </remarks>
     public void UpdateRealFps()
     {
-        _frameCount++;
-        long currentTick = Environment.TickCount64;
-        long elapsed = currentTick - _lastFpsCalcTick;
-
-        if (elapsed >= 1000) // 达到 1 秒周期
+        try
         {
-            RealFps = Math.Round(_frameCount / (elapsed / 1000.0), 1);
-            _frameCount = 0;
-            _lastFpsCalcTick = currentTick;
+            _frameCount++;
+            long currentTick = Environment.TickCount64;
+            long elapsed = currentTick - _lastFpsCalcTick;
+
+            if (elapsed >= 1000) // 达到 1 秒周期
+            {
+                RealFps = Math.Round(_frameCount / (elapsed / 1000.0), 1);
+                _frameCount = 0;
+                _lastFpsCalcTick = currentTick;
+            }
         }
+        catch{ }
     }
 
     #endregion