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Utility/ConsoleHelper.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CloudBuilder.Topshelf.Utility
+{
+    // 先把这个类放到你的代码文件里
+    public static class ConsoleHelper
+    {
+        [DllImport("kernel32.dll")]
+        static extern IntPtr GetStdHandle(int nStdHandle);
+
+        [DllImport("kernel32.dll")]
+        static extern int SetStdHandle(int nStdHandle, IntPtr hHandle);
+
+        const int STD_OUTPUT_HANDLE = -11;
+        const int STD_ERROR_HANDLE = -12;
+
+        /// <summary>
+        /// 屏蔽所有底层C++输出（彻底隐藏 SherpaOnnx 日志）
+        /// </summary>
+        public static void DisableConsoleOutput()
+        {
+            var nullHandle = IntPtr.Zero;
+            SetStdHandle(STD_OUTPUT_HANDLE, nullHandle);
+            SetStdHandle(STD_ERROR_HANDLE, nullHandle);
+        }
+
+        /// <summary>
+        /// 恢复输出（如果你需要）
+        /// </summary>
+        public static void EnableConsoleOutput()
+        {
+            var outHandle = GetStdHandle(STD_OUTPUT_HANDLE);
+            var errHandle = GetStdHandle(STD_ERROR_HANDLE);
+            SetStdHandle(STD_OUTPUT_HANDLE, outHandle);
+            SetStdHandle(STD_ERROR_HANDLE, errHandle);
+        }
+    }
+
+    public static class ConsoleOutput
+    {
+        private const int STD_ERROR_HANDLE = -12;
+        private static IntPtr _originalErrorHandle;
+
+        [DllImport("kernel32.dll")]
+        private static extern IntPtr GetStdHandle(int nStdHandle);
+
+        [DllImport("kernel32.dll")]
+        private static extern bool SetStdHandle(int nStdHandle, IntPtr hHandle);
+
+        /// <summary>
+        /// 只关闭 标准错误输出(stderr)
+        /// 作用：屏蔽 sherpa-onnx 所有垃圾日志
+        /// 保留：你的进度条、控制台输出(stdout)
+        /// </summary>
+        public static void HideStdError()
+        {
+            _originalErrorHandle = GetStdHandle(STD_ERROR_HANDLE);
+            SetStdHandle(STD_ERROR_HANDLE, IntPtr.Zero);
+        }
+    }
+}
+
+

Utility/SherpaLogFilter.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CloudBuilder.Topshelf.Utility
+{
+    public static class SherpaLogFilter
+    {
+        /// <summary>
+        /// 只屏蔽 sherpa-onnx 输出的日志，不影响你的进度条
+        /// </summary>
+        public static void HideSherpaOnnxLogs()
+        {
+            // 过滤 stdout
+            var originalOut = Console.Out;
+            Console.SetOut(new FilterWriter(originalOut));
+
+            // 过滤 stderr
+            var originalError = Console.Error;
+            Console.SetError(new FilterWriter(originalError));
+        }
+
+        private class FilterWriter : TextWriter
+        {
+            private readonly TextWriter _inner;
+            public FilterWriter(TextWriter inner) => _inner = inner;
+            public override Encoding Encoding => Encoding.UTF8;
+
+            public override void WriteLine(string value)
+            {
+                // 屏蔽包含这些关键词的日志
+                if (!ShouldFilter(value))
+                    _inner.WriteLine(value);
+            }
+
+            public override void Write(string value)
+            {
+                // 关键：不屏蔽 Write(...) → 你的进度条就是用 Write 输出的，会保留！
+                if (!ShouldFilter(value))
+                    _inner.Write(value);
+            }
+
+            private bool ShouldFilter(string s)
+            {
+                if (s == null) return false;
+                return
+                    s.Contains("sherpa-onnx") ||
+                    s.Contains("character-lexicon.cc") ||
+                    s.Contains("Ignore OOV") ||
+                    s.Contains("ConvertTextToTokenIds");
+            }
+        }
+    }
+}