MediaInfoRetriever:

* Fix potential encoding issue in `SetLanguage` method: explicitly convert the UTF-8 file content to UTF-16

Author: PolarGoose

.editorconfig

@@ -7,3 +7,6 @@ insert_final_newline = true
 charset = utf-8
 indent_style = space
 indent_size = 2
+
+[test.js]
+charset = utf-16

src/DOpusScriptingExtensions/MediaInfoRetriever/MediaInfoRetriever.h

@@ -79,21 +79,23 @@ class ATL_NO_VTABLE CMediaInfoRetriever :
 
 private:
   std::wstring GetLanguageFileContent(const std::wstring_view& languageName) {
-    const auto& languageFilePath = boost::dll::this_line_location().parent_path() / L"MediaInfoLanguages" / std::format(L"{}.csv", languageName);
+    const auto& languageFilePath = mediaInfoLanguagesPath / std::format(L"{}.csv", languageName);
 
     if(!boost::filesystem::exists(languageFilePath)) {
       THROW_WEXCEPTION(L"Language '{}' is not supported. The '{}' file doesn't exist", languageName, languageFilePath);
     }
 
-    std::wifstream file(languageFilePath.c_str(), std::ios::binary);
+    // The language files are encoded in UTF-8.
+    std::ifstream file(languageFilePath.c_str());
     if (!file) {
       std::error_code ec(errno, std::generic_category());
       THROW_WEXCEPTION(L"Failed to open language file '{}'. Error message: {}", languageFilePath, ToWide(ec.message()));
     }
 
-    return (std::wostringstream() << file.rdbuf()).str();
+    return ToWide(std::string{ std::istreambuf_iterator<char>(file), {} });
   }
 
+  inline static const auto& mediaInfoLanguagesPath = boost::dll::this_line_location().parent_path() / L"MediaInfoLanguages";
   MediaInfoLib::MediaInfo mi;
 };