fix(audio-info): crash when device name contains special characters (#4095)

src/platform/windows/utf_utils.cpp

@@ -0,0 +1,66 @@
+/**
+ * @file src/platform/windows/utf_utils.cpp
+ * @brief Minimal UTF conversion utilities for Windows tools
+ */
+#include "utf_utils.h"
+
+#include "src/logging.h"
+
+#include <string>
+#include <Windows.h>
+
+using namespace std::literals;
+
+namespace utf_utils {
+  std::wstring from_utf8(const std::string &string) {
+    // No conversion needed if the string is empty
+    if (string.empty()) {
+      return {};
+    }
+
+    // Get the output size required to store the string
+    auto output_size = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, string.data(), string.size(), nullptr, 0);
+    if (output_size == 0) {
+      auto winerr = GetLastError();
+      BOOST_LOG(error) << "Failed to get UTF-16 buffer size: "sv << winerr;
+      return {};
+    }
+
+    // Perform the conversion
+    std::wstring output(output_size, L'\0');
+    output_size = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, string.data(), string.size(), output.data(), output.size());
+    if (output_size == 0) {
+      auto winerr = GetLastError();
+      BOOST_LOG(error) << "Failed to convert string to UTF-16: "sv << winerr;
+      return {};
+    }
+
+    return output;
+  }
+
+  std::string to_utf8(const std::wstring &string) {
+    // No conversion needed if the string is empty
+    if (string.empty()) {
+      return {};
+    }
+
+    // Get the output size required to store the string
+    auto output_size = WideCharToMultiByte(CP_UTF8, WC_ERR_INVALID_CHARS, string.data(), string.size(), nullptr, 0, nullptr, nullptr);
+    if (output_size == 0) {
+      auto winerr = GetLastError();
+      BOOST_LOG(error) << "Failed to get UTF-8 buffer size: "sv << winerr;
+      return {};
+    }
+
+    // Perform the conversion
+    std::string output(output_size, '\0');
+    output_size = WideCharToMultiByte(CP_UTF8, WC_ERR_INVALID_CHARS, string.data(), string.size(), output.data(), output.size(), nullptr, nullptr);
+    if (output_size == 0) {
+      auto winerr = GetLastError();
+      BOOST_LOG(error) << "Failed to convert string to UTF-8: "sv << winerr;
+      return {};
+    }
+
+    return output;
+  }
+}  // namespace utf_utils