Switched from sync transcoder to async transcoder

src/libs/av/impl/AudioFile.hpp

@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2020 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/>.
+ */
+
+/* This file contains some classes in order to get info from file using the libavconv */
+
+#pragma once
+
+#include "av/IAudioFile.hpp"
+
+struct AVFormatContext;
+
+namespace Av
+{
+
+	class AudioFile final : public IAudioFile
+	{
+		public:
+			AudioFile(const std::filesystem::path& p);
+			~AudioFile();
+
+			AudioFile(const AudioFile&) = delete;
+			AudioFile(AudioFile&&) = delete;
+			AudioFile& operator=(const AudioFile&) = delete;
+			AudioFile& operator=(AudioFile&&) = delete;
+
+			const std::filesystem::path&		getPath() const override;
+			std::chrono::milliseconds			getDuration() const override;
+			MetadataMap							getMetaData() const override;
+			std::vector<StreamInfo>				getStreamInfo() const override;
+			std::optional<std::size_t>			getBestStream() const override;
+			bool								hasAttachedPictures() const override;
+			void								visitAttachedPictures(std::function<void(const Picture&)> func) const override;
+
+		private:
+
+			const std::filesystem::path	_p;
+			AVFormatContext* _context {};
+	};
+
+} // namespace Av
+