Introduced new transcoding service

src/libs/core/impl/FileResourceHandler.cpp

@@ -22,12 +22,13 @@
 #include <fstream>
 
 #include "core/ILogger.hpp"
+#include "core/MimeTypes.hpp"
 
-namespace lms
+namespace lms::core
 {
     std::unique_ptr<IResourceHandler> createFileResourceHandler(const std::filesystem::path& path, std::string_view mimeType)
     {
-        return std::make_unique<FileResourceHandler>(path, mimeType);
+        return std::make_unique<FileResourceHandler>(path, mimeType.empty() ? getMimeType(path.extension()) : mimeType);
     }
 
     FileResourceHandler::FileResourceHandler(const std::filesystem::path& path, std::string_view mimeType)
@@ -134,4 +135,4 @@ namespace lms
         LMS_LOG(UTILS, DEBUG, "Job complete!");
         return nullptr;
     }
-} // namespace lms
+} // namespace lms::core

src/libs/core/impl/FileResourceHandler.hpp

@@ -25,7 +25,7 @@
 
 #include "core/IResourceHandler.hpp"
 
-namespace lms
+namespace lms::core
 {
     class FileResourceHandler final : public IResourceHandler
     {
@@ -43,4 +43,4 @@ namespace lms
         ::uint64_t _beyondLastByte{};
         ::uint64_t _offset{};
     };
-} // namespace lms
+} // namespace lms::core

src/libs/core/impl/MimeTypes.cpp

@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2025 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "core/MimeTypes.hpp"
+
+#include <unordered_map>
+
+#include "core/String.hpp"
+
+namespace lms::core
+{
+    std::string_view getMimeType(const std::filesystem::path& fileExtension)
+    {
+        static const std::unordered_map<std::string, std::string_view> entries{
+            // audio
+            { ".aac", "audio/aac" },
+            { ".ac3", "audio/ac3" },
+            { ".aif", "audio/x-aiff" },
+            { ".aiff", "audio/x-aiff" },
+            { ".alac", "audio/mp4" },
+            { ".ape", "audio/x-monkeys-audio" },
+            { ".dff", "audio/x-dsd-dff" },
+            { ".dsdiff", "audio/x-dsd-diff" },
+            { ".dsf", "audio/x-dsd" },
+            { ".dsf", "audio/x-dsd-dsf" },
+            { ".dts", "audio/vnd.dts" },
+            { ".dtshd", "audio/vnd.dts.hd" },
+            { ".eac3", "audio/eac3" },
+            { ".flac", "audio/flac" },
+            { ".m3u", "audio/x-mpegurl" },
+            { ".m4a", "audio/mp4" },
+            { ".m4b", "audio/mp4" },
+            { ".mka", "audio/x-matroska" },
+            { ".mka", "audio/x-matroska" },
+            { ".mp3", "audio/mpeg" },
+            { ".mpc", "audio/x-musepack" },
+            { ".oga", "audio/ogg" },
+            { ".ogg", "audio/ogg" },
+            { ".opus", "audio/opus" },
+            { ".pls", "audio/x-scpls" },
+            { ".shn", "audio/x-shn" },
+            { ".wav", "audio/x-wav" },
+            { ".webm", "audio/webm" },
+            { ".wma", "audio/x-ms-wma" },
+            { ".wv", "audio/x-wavpack" },
+            { ".wvp", "audio/x-wavpack" },
+
+            // image
+            { ".bmp", "image/bmp" },
+            { ".gif", "image/gif" },
+            { ".jpg", "image/jpeg" },
+            { ".jpeg", "image/jpeg" },
+            { ".png", "image/png" },
+            { ".webp", "image/webp" },
+        };
+
+        auto it{ entries.find(core::stringUtils::stringToLower(fileExtension.c_str())) };
+        if (it == std::cend(entries))
+            return "application/octet-stream";
+
+        return it->second;
+    }
+} // namespace lms::core